TS-100/TS-110/TS-130 Microprocessor pH/ORP/ION Portable Meter

Transcription

TS-100/TS-110/TS-130
Microprocessor
pH/ORP/ION
Portable Meter
Operation
Manual
CONTENTS
1. Specifications .............................................................................................................1
2. Panel Description .....................................................................................................2
2.1 Front Panel ...........................................................................................................2
2.2 Sockets...................................................................................................................2
2.3 Keypad ..................................................................................................................3
3. Operation ....................................................................................................................4
3.1 Measurement ........................................................................................................4
3.2 Block diagram of parameter settings .................................................................5
3.3 Parameter settings ...............................................................................................6
3.4 Auto/Manual data storage (TS-110/130 only)..................................................14
3.5 Data transmitting and display (TS-110/130 only) ...........................................16
3.6 Delete all of the data (TS-110/130 only) ...........................................................20
4. Calibration ................................................................................................................21
4.1 pH calibration.....................................................................................................22
4.2 Operation of pH calibration..............................................................................23
4.3 Auto calibration for preset Buffers (CT / CN) ................................................24
4.4 Any buffer manual calibration (CA)................................................................26
4.5 ION concentration calibration (TS-130 only)..................................................27
4.6 ION concentration calibration (CC)(TS-130 only) .........................................28
5. Error messages ........................................................................................................30
6. Maintenance .............................................................................................................31
6.1 Battery replacement...........................................................................................31
6.2 Electrode clean and maintenance .....................................................................31
7. Modbus protocol and instructions (TS-110/130 only)....................................32
7.1 Function code .....................................................................................................32
7.2 MODBUS name and address table...................................................................33
8. Appendix ...................................................................................................................34
Note: The instrument software and hardware maybe modified to make progress of the better operation and
better accuracy. Thus, this may result in difference between this manual and your instrument. We can not
guarantee there are no errors in the manual. Therefore, we are sure that you understand that we cannot
accept any legal claims resulting from the data, figures or descriptions.
1. Specifications
Model
Measuring Unit
Measuring
Range
TS-100
TS-110
pH/ORP/TEMP.
-2.00~16.00pH
-2.00~16.00pH/-2.000~16.000pH
ORP
TEMP
-1999~1999mV
-1999~1999mV/-1999.9~1999.9mV
pH
ORP
-10.0~110.0°C
−−−−
0.01 pH
1mV
0.1°C
TEMP
pH
ORP
±0.01(±1Digit)
±0.1%(±1Digit)
±0.01/±0.005(±1Digit)
±0.05%(±1Digit)
±0.2°C(±1Digit)
−−−−
ION
Auto-Read(HOLD)
Calibration
RS232 Interface
1 / 0.1 / 0.01 / 0.001
ppm(mg/l)
−−−−
TEMP
Temperature
Compensation
0.001~1999.9ppm(mg/l)
0.01 pH/0.001 pH
1mV/0.1mV
ION
Accuracy
pH/ORP/TEMP./ION
pH
ION
Resolution
TS-130
±0.5%(±1Digit)
Yes
Automatic with PT1000/NTC30K, auto recognition
Manual
pH: Tech./ NIST/ ANY/ Define Buffer mode, up to 3 points
ION: Ion concentration calibration, up to 3 points (TS-130 only)
−−−−
One way transmission: To the computer/ printer
(ASCII)
Two way transmission: Modbus (RTU or ASCII)
Data storage
Auto power off
500 data sets with time and date stamp
Continuously auto data storage & logging /Manual
Yes(Programmable time duration for auto-power off)
−−−−
Ambient
Temperature
0~50°C
Storage
Temperature
Display
Power Supply
Battery lifetime
Protection
Certification
Dimension
Weight
-20~70°C
LCD Display
4 x AA Batteries
>1000 hours
IP65
CE
184 mm x 98mm x 38mm (L x W x H)
0.35Kg
Note: The specifications and appearance of the instrument are subject to change without
notice.
1
2. Panel Description
2.1 Front Panel
Measurement
Setting mode
Mode
Auto Read
Drift Control
Measurement
Calibration
mode
Auto Temp.
Unit
Compensation
Data Storage
mode
Time/Date
Low Battery
Warning
Baud Rate
Data display
&
Transmitting
Data Storage
Position No.
Data Storage
ID number
2.2 Sockets
RS232 Interface
(Optional: 8-30
RS232 Cable)
ATC probe
Reference sensor/
ATC probe socket
Sensor clip
holder
pH/ORP senor
BNC socket
2
2.3 Keypad
Power ON/OFF. Press POWER key to turn on the instrument, press it
again to turn it off. Press POWER for a while when the power is
already on, then the display will show the model type and software
version. The user may set up auto turn-off timer. Under a certain of
time not touch any keypad, the instrument will auto turn off.
Switch to pH, ORP or ION (TS-130 only) mode. Press “Mode”
key to back to measuring mode at any time except under calibration
mode.
Enter calibration mode / Select buffer type
Activate/deactivate Auto Read control. Hold the measurement value,
press it for activate the function, and press again to cancel it.
Increase values / Scroll upwards or leftwards.
Decrease values / Scroll downwards or rightwards.
Confirm inputs / Execute / Transmitting data manually via RS-232 in
measuring mode.
Activate manual data recall and mode selection / Deactivate auto data
recall. (TS-110/130 only)
Activate manual data storage / Deactivate auto data storage
Note: The icon of the manual is subject to change without notice.
3
3. Operation
3.1 Measurement
Press POWER key to turn on the instrument and it will directly enter the last
measurement mode to start measurement. Press POWER key for a while when
the power is already on, then the display will show the model type and software
version. The user may set up auto turn-off timer. Under a certain of not touch any
keypad, the instrument will auto turn off.
3.1.1 Mode
Press MODE key to switch to pH, ORP, ION (TS-130 only，measuring
mode. (ION mode has 2 units: ppm and mg/l for selection.) Press ENTER
key +MODE key to switch on the decimal of resolution.
(TS-110/130 only)。
3.1.2 Temperature compensation
1. ATC：Automatically recognition of temperature probe NTC30K or
PT-1K and auto temperature measurement and compensation.
Under setting mode, the temperature can be adjusted ±5˚C for
temperature correction.
2. MTC：Entering into manual temperature compensation mode when there
is no ATC probe plugged in. Press upward or downward key to
modify the temperature value. Press upward and downward key
simultaneously to restore default value 25˚C.
3.1.3 Auto Read Drift Control
Under measurement mode, press AUTO READ key to hold the present
reading(HOLD), and press ENTER key to confirm the Auto-Read function
and to activate new measurement. Wait until the measurement is stable, the
instrument hold the value automatically(HOLD) to finish the procedure. To
cancel the hold value, press AUTO READ key or MODE key to relieve the
Auto-Read hold value.
Activate Auto-Read
Press AUTO READ key
Put the electrode into sample solution, press ENTER for
starting reading. The Auto Read symbol twinkles. Wait
until the measurement is stable. If the measurement can
not be stable in a certain time, the display shows E-03
error message, and the Auto Read symbol disappears.
Press ENTER key again to re-start the Auto-Read。
Wait until the measurement becomes stable, the Auto Read
symbol stop twinkling. The display shows the pH
measurement and holds the value.(HOLD)
Relieve Auto-Read Hold
Press AUTO READ key or MODE key
Note: ORP mode does not apply Auto-Read function.
4
3.2 Block diagram of parameter settings
Enter Parameter
Setting mode
Auto_Power
Setting
OFF
AUTO
(On)
(TS-110/130 only)
SEC
(Digital
Filter)
Set measuement
average
times
ATC Temp.
Compansation
Data_Clear
(Rewritable)
Set
temperature
AUTO
(On)
OFF
Preset:
Auto
Timer
setting
Upward and downward key
：
ENTER key
Select
RTU or
ASCII
Select
Parity
Set baud
rate
Preset:
Auto
：
Computer/
Modbus
Comunication
Note: Under any setup mode, press MODE to back to measurement mode at any time.
Factory default value:
Auto Power-Off: AUTO
Temperature compensation: ATC, 0.0°C
Data Storage Rewriteable Function: AUTO
Communication Settings: ASCII, non, 4800
System Time Settings: 2011, 01:01, 00:06
5
System time
setting
Set year
Set date
Set time
3.3 Parameter settings
3.3.1 Entering setting of parameter
While the instrument’s power is off, press MODE key and hold the
pressing continuously, and press POWER key until the display shows model
of the instrument. Release the POWER key and wait until the menu display
enter into parameter settings mode, and then release MODE key. Press
upward or downward key to select setting menu. To exit the parameter settings
mode, press MODE key to back to measurement mode.
3.3.2 Auto power-off settings
Under data storage rewritable function menu display, users can set
whether to enable the function. The auto power off timer setting range: 10
minutes minimum, 23 hours and 59 minutes maximum.
Preset: 10 mins
Press ENTER key to enter.
Press upward or downward
key to select auto power-off,
or to turn off this function.
Press ENTER key for
confirmation.
When the value twinkles, press upward or downward
key to modify the auto power-off timer.
Press ENTER key for confirmation.
Enter “Digital Filter” settings
6
3.3.3 Digital filter settings (Sample average of measurements)
Enter the setup of Digital filter. You may select the number of sample to
be averaged each time to become a reading which is gradually counted in
order to increase the stability of measurement.
Press ENTER key to enter
When the value twinkles, press
upward or downward key to modify
times of digital filter.
Enter “Auto Temperature Compensation Correction” settings
7
3.3.4 Auto temperature compensation correction settings
Enter auto temperature compensation settings. If the ATC probe is connected,
it is allowed to correct the temperature value by pressing upward or
downward key of ±5°C. Or press upward and downward key simultaneously
to zero the temperature modification value.
Note: If not ATC mode, it can not enter into auto temperature
compensation correction settings.
Press ENTER
key to enter
When the value twinkles, press upward or downward
key to modify the temperature value difference. The
corrected temperature will show in next menu display.
Back to “Auto Power-Off” settings
(TS-100 only)
Press MODE key to back to the measurement mode
Enter “Data Storage Rewritable Function” settings
(TS-110/130 only)
8
3.3.5 Data storage rewritable function (TS-110/130 only)
Under data storage rewritable function menu display, users can set whether
to enable the function. AUTO means to turn on the function. When data
storage is full the data logger will overwrite the new data on the previous
one. It is also allowed to select OFF to turn off the function.
to select auto data storage
rewritable function or to
turn off the function.
Press ENTER key for confirmation
Enter “Communication” settings
9
3.3.6 RS-232 communication settings (TS-110/130 only)
Users may according to their communication needs with following table
to set transfer mode, (ASCII, RTU), parity (non, odd, even) and transmission
baud rate (1200, 2400, 4800, 9600).
1. Communication setting format
Mode
Single way
Data transfer to
computer or printer
ASCII
Transmission
1200, 2400,
Baud Rate
4800, 9600
Default data bit
8
Parity
non
Default stop bit
2
The default
address
None
RS232
Interface
Dual way
Modbus Protocol
RTU
ASCII
2400, 4800, 9600
8
7
non, odd, even
non
odd, even
2
1
1
Note: 1.Because of different transmission formats, two kinds of communication
mode can not be operated simultaneously.
2. This Modbus protocol does not include the selection of baud rate 1200.
3. Data bits, stop bits and the instrument’s address are preset value which
can not be modified.
10
2. Communication setting procedure
Press ENTER
key to enter
Press upward or downward key
to select ASCII or RTU
transmission mode.
Press ENTER key for confirmation
Press upward or downward key to select odd, even
or none parity, press ENTER key for confirmation.
Press upward or downward key to select baud rate,
press ENTER key for confirmation.
Enter “System Time” settings
11
3.3.7 System time settings (TS-110/130 only)
Users may set the year, month, date, hour, and minute. When replacing
the batteries, it is necessary to enter to the setting to update the system time.
When the value twinkles,
press upward or downward
key to modify hour. Press
ENTER key to confirm it.
key to modify year. Press
key to modify minute. Press
key to modify month. Press
key to modify date. Press
12
Enter “Auto Power-Off” settings
Press MODE key to back to
measurement mode
3.4 Auto/Manual data storage (TS-110/130 only)
Under data storage mode, users may store pH, ORP and ION (TS-130 only)
measurement with No. and ID two kinds of classification. The “No.” represents
the order of storage sequence. When data is stored to the 500th data, the display
will shows “Full” to represent there is no more space for data logger memory.
While ID number 1~500 is for grouping the samples which the user requires. The
Auto data storage can be set according to the time interval setting, the minimum
interval is 5 seconds. If turn on the Data Rewritable Function, when the data
memory is full the data logger will overwrite the new data.
3.4.1 Auto data storage
Under measurement mode, press and hold ENTER key and press STORE
key simultaneously to enter auto storage settings.
When auto storage is not activated, press MODE key to exit the menu.
Display the starting
storage number
Press upward or downward key to modify the
grouping ID. Press ENTER key to confirm it.
When the value twinkles, press upward or
downward key to set the minute interval of
auto storage. Press ENTER key to confirm it.
When the value twinkles, press upward or
downward key to set the second interval of
auto storage. Press ENTER key to confirm it.
“Auto Store＂twinkling represents the auto storage is
activating. Press ENTER + STORE to turn off the auto
storage function, and back to the measurement mode.
13
3.4.2 Manual data storage
3.4.3 Overflow of data storage
Under measurement mode,
press STORE key to enter
manual data storage mode. Press
MODE key to exit at any time.
When the all the memory is
occupied and the data can not be
stored any more, the display
twinkles the text for reminder for 5
seconds and back to the
measurement mode.
Display the starting
storage number
Press ENTER
key to enter
Users may delete all of the data
according to the ch 3.6
instruction.(When auto rewritable
function is turned on, there is no
this data full display reminder.)
Press upward or downward key to
modify the grouping ID. Press
Back to measurement mode
14
3.5 Data transmitting and display (TS-110/130 only)
Note: The output of the instrument is non-insulated signal. It may impact
the transmitting measurement value if the instrument connects with other
earth-related device.
3.5.1 Time interval auto transmitting
3.5.2 Data display & manual transmitting
(Transmit the real-time measurement to a
Under measurement mode, press
computer or a printer through RS-232)
RECALL key to roll up the data
Under measurement mode, press and hold
display & manual transmitting menu.
ENTER key and then press RECALL key There are four kinds of operation mode.
to enter auto transmitting menu display.
Press ENTER key to enter the menu.
After finishing setting, the data is
transmitted through RS-232 interface.
1.Display the stored data
upward or downward key to set the
minute interval of auto transmitting.
Press ENTER key to confirm it.
recent stored data menu
display.
upward or downward key to set the
second interval of auto transmitting.
Press ENTER key to confirm it.
key to select storage position.
Press ENTER key to confirm
it.
When “Auto RCL” twinkles, it
represents the auto transmitting function
has been activated.
Press ENTER+ RECALL to turn off the
auto transmitting mode and back to the
measurement mode.
Display the data and its ID grouping.
Press upward and downward key to
directly look up other data and their ID
grouping.
Press ENTER key to confirm to
display this data of measurement value,
storage year, date, and time.
15
2. Display the last calibration data
(1) Under pH measurement mode,
press RECALL key to show the
last pH calibration data in display.
(ex: 3-Point calibration)
Press ENTER
key to enter. The
display shows Buffer 1
calibration data.
Press ENTER key to
enter. The display shows
Buffer 2 calibration data.
If no data, ignores the
procedure and display the
Slope value.
Press ENTER
key to display the
SENSITIVITY value.
Press ENTER
key to display the
ASYMMETRY value.
Press ENTER
key to display the
R2 value.
The display shows Buffer 3
calibration data. If no data,
ignores the procedure and
display the Slope value.
Press ENTER
key to display the
cal. data storage year.
Press ENTER
key to display the
Slope value.
16
Press ENTER
key to display the
cal. data storage date.
Press ENTER
key to display the
cal. data storage time.
Press ENTER key
17
(2) Under ION measurement mode, press
RECALL key to show the last ISE
concentration calibration data in display.
(TS-130 only)
The display shows Buffer 3
calibration data. If no data,
ignores the procedure and
display the Slope value.
Press ENTER
key to enter. The
display shows Buffer 1
calibration data.
Press ENTER
key to display the
mV value of Buffer 1.
Press ENTER
key to display the
Press ENTER key to
enter. The display shows
Buffer 2 calibration data.
Press ENTER
key to display the
Slope value.
Press ENTER
key to display the
SENSITIVITY value.
Press ENTER
key to display the
18
3. Manual stored data transmitting
(1) Transmit all the stored data
Press ENTER key
Press ENTER
key to display the
R2 value.
Transmission completed
(2) Format of received storage data
Press ENTER
key to display the
cal. data storage year.
Press ENTER
key to display the
cal. data storage date.
Note: The output of the instrument is
non-insulated signal. It may impact
the transmitting measurement value
if the instrument connects with other
earth-related device.
Press ENTER
key to display the
cal. data storage time.
Press ENTER key
19
4. Calibration data transmitting
(1) Transmit the stored cal. data
through RS-232 interface
3.6 Delete all of the data
(TS-110/130 only)
Under power off status, press &
hold STORE key and then
press & hold POWER key until
the display shows the model of
instrument. Release POWER
key. While the menu display
shows data clean text, release
STORE key.
Press ENTER key
Transmission completed
Press ENTER key to confirm
to delete all the data.
To abandon the deletion, please
press MODE key.
(2) Format of received calibration data
TS-110 pH mode
TS-130 pH mode
TS-130 ION mode
20
4. Calibration
Under measurement mode, press CAL key to enter calibration mode, and press
MODE key to go back to measurement mode.
4.1 pH Calibration
The instrument provides multi-point standard buffer solution calibration. You may
decide how many points to calibrate the measurement system.(up to 5-point) The
principle is according to “Method of Least Squares”. Apply linear regression to
calibration the electrode’s slope and zero point (Asy, Offset or Zero point).
When calibrating a electrode, you may calibrate 1 to 3 point by any sequence to
provide linear regression for mV and pH multi-calibration of a electrode, and to show
the electrode’s slope and zero point(Asy, offset or Zero point) at 25˚C. The electrode’s
slope rate which is actual slope divided by theoretical slope and the sensitivity shows
in percentage in the display. In addition, the display shows the linear regression
determination coefficient, R2, of the electrode and buffer solution to provide you an
estimation of an electrode’s regression suitability. According to different combination
of standard buffers, the TECH, NIST, Any buffer solution calibration modes are
provided.
4.1.1 TECH mode (up to 3 points calibration), CT
The electrode is automatically calibrated according to built-in pH4.01, pH7.00,
pH10.00 Tech standard buffers. The range of zero point and slope of the electrode is
also determined. If one of them is over the range, the display shows error message of
zero point and slope failure. (See appendix Table 1, pH/temperature table of TECH
standard buffers)
4.1.2 NIST mode (up to 3 points calibration), CN
The electrode is automatically calibrated according to pH value and
temperature of NIST standard buffers.(Built-in 1.68, 4.01, 6.86, 9.18, 12.45 NIST
standard buffer calibration set) The range of zero point and slope of the electrode is
also determined. If one of them is over the range, the display shows error message
of zero point and slope failure. (See appendix Table 2, pH/temperature table of
NIST standard buffers)
4.1.3 Any buffer mode (up to 3 points calibration), CA
The electrode measures mV value of different standard solutions. According to
theoretic slope and the temperature of standard solutions, the display shows a
approximate pH value. Then, you can calibrate the electrode by freely adjust the pH
value as those of the standard solutions’. There is not a zero point range failure
determination by the instrument but only the slope range determination. If the slope
is over the range, the display shows error message of slope failure.
21
4.1.4 Definition of calibration parameter
You can calibrate the electrode by one point or up to three points of
standard solutions by any sequence. As different calibration point method is applied,
the definition of the zero point and slope different.
Calibration point Determination
One point
calibration
Two or three
point calibration
Asy
Asy
Slope
The showed calibration value
Zero point (Asy, offset or Zero point)= Asy
1.If not calibrated, Slope = Theoretical slope
2.If calibrated, Slope = Slope of last calibration
Zero point (Asy, offset or Zero point)= Asy
Slope = Slope*
Note: To obtain a new zero point(Asy) and Slope
by applying linear regression.
4.2 Operation of pH calibration
4.2.1 Under pH measurement mode, press CAL key
to enter pH calibration mode. Press MODE at
any time to finish calibration and back to
measurement mode.
4.2.2
After entering calibration mode, press CAL key
to switch buffer type. Press ENTER for
confirmation.
Buffer Type：CT1: TECH. Buffer No.1
CN1: NIST. Buffer No.1
CA1: Any Buffer No.1
4.2.3
Within the 3 kinds of buffer type, they all can be
done with up to 3 points calibration. You may
calibrate the electrode with certain type buffers
in any sequence.
22
4.3 Auto calibration for preset Buffers (CT / CN)
4.3.1
After entering to calibration mode, press CAL
key to select Ct1 or Cn1. If temperature mode is
set as MTC(Manual), the temperature value
starts twinkling. Press upward or downward key
to adjust the temperature value. Or press upward
and downward key simultaneously to back to
the preset value--25°C. Press ENTER key to
start to read the preset Buffer 1 value.
4.3.2
When reading the value, the “Auto Read”
symbol in the display starts to twinkle. Wait
until the value is stable or directly press ENTER
key to read the present value, then the menu
enter into preset buffer 1 value with temperature
value.
4.3.3
After entering preset Buffer 1 menu display,
press ENTER or wait for 3 seconds to enter the
Buffer 2 calibration menu display.
4.3.4
After entering into Buffer 2 menu display, press
MODE key to leave the calibration menu to
finish it as a single point calibration. The menu
display shows slope value; for multi points
calibration, clean the pH electrode with distilled
water, put the electrode into second buffer
solution. If temperature mode is set as MTC
(Manual), the temperature value starts twinkling.
Press upward or downward key to adjust the
temperature value. Or press upward and
downward key simultaneously to back to the
preset value--25°C. Press ENTER key to start to
read the preset Buffer 2 value.
4.3.5
until the value is stable or directly press
ENTER key to read the present value, then the
menu enter into preset buffer 2 value with
temperature value.
23
4.3.6
After entering preset Buffer 2 menu display,
press ENTER or wait for 3 seconds to enter the
Buffer 3 calibration menu display.
4.3.7
After entering into Buffer 2 menu display, press
finish it as a dual point calibration. The menu
water, put the electrode into third buffer solution.
Press ENTER key to start to read the preset
Buffer 3 value for continuing calibration.
4.3.8
After finishing whether single, dual to five
points calibration(CT mode up to three points),
press ENTER or wait for 3 seconds to show the
slope value, the SENSITIVITY value, the
ASYMMETRY value, the R2 value. Then after
3 seconds or press ENTER key to go back to
measurement mode.
24
4.4 Any Buffer manual calibration (CA)
4.4.1 After entering calibration mode, clean the pH
electrode with distilled water, put the electrode
into first buffer solution. Press CAL key to
select CA1. If temperature mode is set as MTC
read the preset Buffer 1 value.
4.4.2
menu enter into manual calibration for Buffer 1.
4.4.3
After entering into manual calibration of Buffer
1 menu display (pH value twinkles), press
upward or downward key to adjust the value to
the selected buffer 1 value. After confirming,
press ENTER key to enter into CA2 calibration
menu display
4.4.4
Under CA2 calibration menu display, if press
finish it as a single point calibration. The menu
water, put the electrode into second buffer
solution. If temperature mode is set as MTC
read the Buffer 2 value.
25
4.4.5
menu enter into manual calibration for Buffer 2.
4.4.6
After entering into manual calibration of Buffer
2 menu display (pH value twinkles), press
upward or downward key to adjust the value to
the selected buffer 1 value. After confirming,
press ENTER key to enter into CA3 calibration
menu display.
4.4.7
Under CA3 calibration menu display, if press
water, put the electrode into third buffer solution
and continue the calibration procedures
4.4.8
After finishing whether single, dual or three
points calibration, press ENTER or wait for 3
seconds to show the slope value, the
SENSITIVITY value, the ASYMMETRY value,
the R2 value. Finally, it will back to
measurement mode.
26
4.5 ION concentration calibration (TS-130 only)
The instrument applies the easiest and widely used ion-selective electrode
direct potentiometry—ISE, to measure the potential reaction of the solution.
Establishing the relationship of ion concentration(activity) and electrode potential
by calibration, the instrument then is able to start measurement. The measurement
and calibration of electrode is necessary to refer to the operation manual of ION
selective electrodes(ISE).
The method of calibration standard solution usually applies continuous
dilution from high concentration standard solution in sequence to get 1000, 100,
10, 1 ppm(mg/l). In order to prevent from the difference of ISE activity and actual
concentration, it is usually necessary to add ISAB (Ionic Strength Adjustment
Buffer) when calibration for making the sample solution has similar ionic
strength.
It is recommended to use the calibration standard solution from low to high
to prevent contamination of standard solution. If the concentration range of
sample solution is known, it should be applied the nearest value of standard
solution for calibration. If the sample measurement range and the standard
solution calibration range have been confirmed to be in the linear range of the
electrode, it is acceptable to make dual points calibration. However, making three
of more points calibration can help to confirm whether the measurement is within
the linear range or not.
The calibration is up to 5 points calibration, and the instrument provides
“log(A) = the logarithm of the activity of the measured ion” of linear regression
calculation for the electrode potential(mV) and ion concentration(activity). It
measures and displays the electrode’s slope under 25°C and the ratio of electrode
actual slope with theoretical slope. It also displays the percentage of electrode
sensitivity for judgment whether electrode is aged or contaminated. It also
displays the linear regression R2 value (determination coefficient) of electrode
and standard solution as the judgment of electrode regression suitability.
Because the calibration slope is related the temperature, the
measurement is compensated with temperature value. However, it is
better to measure the standard solution and sample solution within ±2˚C
temperature difference.
The definition of electrode slope determination:
Slope
The number of valence
48 ~ 70
+1 monovalent ion
-48 ~ -70
-1 monovalent ion
24 ~ 35
+2 ion
-24 ~ -35
-2 ion
Note: If over range, the error message of slope failure is E-02.
27
4.6 ION concentration calibration (CC)(TS-130 only)
For concentration calibration(CC) (up to 5 points calibration), select ppm or
mg/l unit under measurement mode. Press CAL key to enter into ION
concentration calibration mode. The instrument has built-in 10 sets selection of
different standard solution value from:
1.00→2.00→5.00→10.00→20.0→50.0→100.0→200→500→1000. The
minimum is 2 points calibration and up to 5 points calibration. Users may press
MODE key at any time to finish the calibration and back to measurement
mode.
4.6.1
Press CAL key to select CC1. If temperature
mode is set as MTC (Manual), the temperature
value starts twinkling. Press upward or
downward key to adjust the temperature value.
Or press upward and downward key
simultaneously to back to the preset value--25°C.
Press ENTER key to start to read the preset
standard solution No.1 value.
4.6.2
After entering into CC1 calibration menu
display, the buffer text in the display starts to
twinkle. Press upward or downward key to the
required value. Press ENTER key to start to
measure standard solution No. 1
4.6.3
When reading the value, the “Auto Read” symbol
in the display starts to twinkle. Wait until the
value is stable or directly press ENTER key to
read and to display the standard solution No.1’s
mV value.
4.6.4
Under the standard solution 1 menu display, wait
for 3 seconds or press ENTER key to enter into
CC2 calibration menu display.
4.6.5
Clean the electrode with distilled water, put the
electrode into second standard solution Under
CC2 calibration menu display. If temperature
mode is set as MTC (Manual), the temperature
value starts twinkling. Press upward or
downward key to adjust the temperature value.
Or press upward and downward key
simultaneously to back to the preset value--25°C.
Press ENTER key to enter into standard
solution No.2 menu display.
28
4.6.6
Under standard solution No.2 menu display. The
concentration value starts twinkles, press CAL
key to select concentration value, press upward or
downward key to adjust it to the required value.
Press ENTER key to read and to display the
standard solution No.2’s mV value.
4.6.7
When reading the value, the “Auto Read” symbol
in the display starts to twinkle. Wait until the
value is stable or directly press ENTER key to
read and to display the standard solution No.2’s
mV value.
Under the standard solution 2 menu display, wait
for 3 seconds or press ENTER key to enter into
CC3 calibration menu display.
Under CC3 calibration menu display, if press
4.6.8
4.6.9
display shows slope value; for multi-point
water, put the electrode into third standard
solution and continue the calibration procedures.
4.6.10 After finishing whether dual or three points
calibration, press ENTER or wait for 3 seconds
to show the slope value, the SENSITIVITY
value, the ASYMMETRY value, the R2 value
and then back to measurement mode.
29
5. Error messages
Messages
Reason
OFFSET(zero-point
electric potential)
value over range
Dispositions
1. Replace the buffer solutions
2. Maintain the electrode or
replace the new electrode,
and make another
calibration.
1. Replace the buffer solutions
SLOPE value exceeds 2. Maintain the electrode or
the upper or lower
replace the new electrode,
and make another
limit
calibration.
Please check whether there is
bubble or air in the glass end of
The readout is
the electrode; maintain the
unstable
electrode or change a new
electrode, and make another
calibration.
1. Please adjust the buffer
solution temperature to the
appropriate temperature
the buffer solution
range and make another
temperature exceeds
calibration.
the range of 5~50°C 2. Please replace the buffer, or
2. The buffer can not
maintain or replace the
electrode and make another
be identified.
calibration.
During calibration,
Serious error that
does not permit any
further measuring
30
Please call service engineer.
6. Maintenance
6.1 Battery replacement
a. Turn off the instrument power first.
b. Use a Philips screwdriver to remove the four screws on the back of the
instruments
c. Open the battery cover, and remove the old batteries.
d. Remove the old batteries, put into the new AA batteries.
e. Close the battery cover, and locked the four screws.
6.2 Electrode clean and maintenance
Generally speaking, under normal operation, the transmitter produced by our
company needs no maintenance expect regular cleaning and calibration of the
electrode to ensure accurate and stable measurement and system operation.
The cleaning cycle for the electrode depends on the pollution degree of the
measurement sample. Normally, it is recommended to make weekly cleaning. The
following chart gives introductions of different cleaning methods according to
different type of contaminations to provide the operators with reference for
cleaning and maintenance.
Type of Contaminations
Cleaning methods
Measuring solutions containing The electrode should be soaked in Pepsin/HCl for several
proteins.（Contamination of the hours. METTLER-TOLEDO 9891 Electrode Cleaner is
junction）
recommended.
Measuring solution containing The junction should be soaked in Thiourea/HCl solution
sulfides.（The junction becomes until being bleached. METTLER-TOLEDO 9892
black）
Electrode Cleaner is recommended.
Short rinsing of the electrode with acetone and
Contamination by grease or
ethanol.
organic substance
Acid and alkaline soluble
contaminations
Rinsing the electrode with 0.1mol/l NaOH or 0.1mol/l
HCl for a few minutes.
Apply clean water to flash the electrode after above cleaning steps and immerse the
electrode in 3M KCl solution for 15 minutes at least, and then calibrate the electrode.
The electrode should only be rinsed and never rubbed or mechanically cleaned, since this
would lead to electrostatic charges. This could cause an increase in the response time.
In cleaning the platinum electrode, the platinum ring of the electrode can be rubbed
gently with a wet soft piece of cloth.
※ The frequency of electrode cleaning depends on the type and degree of
contamination. However it is recommended that the electrode be cleaned once a
week.
31
7. Modbus protocol and instructions (TS-110/130 only)
7.1 Function code
In the original Modbus protocol definition, there are many command
functions on the substance of duplication. Base on the reason, TS110/130 only
supports some of the function codes. When starting communication, the Master sends
the request through function code to tell the Slave to perform which actions. The
Slave responds function which is the same as that sent by the Master to indicate the
Slave has already responded to the Master and has performed the action.
The range of function code is 1~255. In between, the function code 128~255 are
defined as abnormal responding function code. The function codes which the slaves
normally respond are the same as those from the Master. The highest bit(MSB) is 0.
When the slaves respond abnormal message, the lowest bit(LSB) of function codes is
the same as those of the master, however, the highest bit(MSB) of the function codes
are set to be 1. It means that there occurs a error when executing the function codes.
The following table lists the function codes supported by TS-110/130
Function code
01H
Read Coil Status
03H
Read Holding Registers
05H
Definition
Operation
Reads the ON/OFF status of
discrete coils in the slave
Read the status of one or more
discrete contacts
Read the binary contents of
holding registers in the slave
Read one or more data
value
register
Writes a single coil to either ON
or OFF.
Set the status of discrete individual
contacts to the specified address
Writes a value into a single
holding register
Set a single 16-bit data register
Writes each coil in a sequence of
coils to either ON or OFF
Set the status of multiple discrete
continuous contacts to the specified
address
Writes values into a sequence of
holding registers
Write Multiple Registers
Set multiple sequence of 16-bit data
register
Write Single Coil
06H
Write Single Register
0FH
Write Multiple Coils
10H
08H
Diagnostics
Diagnostics function
32
The assessment of network
communication capability
7.2 MODBUS name and address table
Function Code：03H, 06H, 10H Modbus response (setup parameter)
Logic
Number Informatio
Description of data
Item
address
of Byte
n type
transmission
Equipment’s
0001H
2
USHORT
1
ID
0002H
0005H
0006H
Meter’s model
Communicatio
n protocol
Serial
transmission
speed (Baud
rate)
6
USHORT
2
USHORT
2
USHORT
ASCII Code
0：RTU
1：ASCII
1：2400
2：4800
0008H
USHORT
0009H
USHORT
Minute
USHORT
Hour
USHORT
Day
USHORT
Month
000AH
000BH
Parity
Real-time
clock*
Note
1
TS110
TS130
1
2
3：9600
0: None
1: Even
2: Odd
Second
0007H
Default
value
2
12
000CH
USHORT
0
2011-01-010
0：00：00
Year
000DH
USHORT
The actions without * sign only support for function code 03H. The actions with * sign support function code
03H, 06H, 10H. USHORT data range from 0 to 65535, SHORT data range from -32768 to 32767. FLOAT is
a 4 data bits IEEE format float. The data range follows is the same.
Function code: 03H Modbus response (measurement parameter)
Logic
Number Informatio
Description of data
Item
address
of Byte
n type
transmission
Number of
TS110/TS130 only
measurement
0031H
2
USHORT
has one channel
channels
pH
ORP(mV)
˚C
Sign byte
0032H
6
CHAR
Default
value
Note
1
ASCII code
ppm (TS-130 only)
mg/l(TS-130 only)
0035H
pH/ORP/ION
measurement
4
FLOAT
pH/ORP/ION(TS-13
0 only) measurement
Data affected
by sign byte
0037H
Temperature
measurement
4
FLOAT
Temperature
measurement
Data affected
by sign byte
33
8. Appendix
Table 1
Tech. Buffers
CT Mode
TEMP℃
Buffer 4.01
Buffer 7
Buffer 10
5
3.999
7.087
10.241
10
3.998
7.053
10.155
15
3.999
7.031
10.116
20
4.002
7.011
10.047
25
4.006
6.996
9.998
30
4.011
6.985
9.952
35
4.018
6.976
9.925
40
4.031
6.971
9.874
45
4.047
6.969
9.843
50
4.055
6.969
9.810
Table 2
NIST. Buffers(DIN 19266)
CN Mode
TEMP℃
Buffer 1.68
Buffer 4.01
Buffer 6.86
Buffer 9.18
Buffer 12.45
5
1.668
4.004
6.951
9.395
13.207
10
1.670
4.000
6.923
9.332
13.003
15
1.672
3.999
6.900
9.276
12.810
20
1.675
4.001
6.881
9.225
12.627
25
1.679
4.006
6.865
9.180
12.454
30
1.683
4.012
6.853
9.139
12.289
35
1.688
4.021
6.844
9.102
12.133
40
1.694
4.031
6.838
9.068
11.984
45
1.700
4.043
6.834
9.038
11.410
50
1.707
4.057
6.833
9.011
11.705
34
SUNTEX INSTRUMENTS CO., LTD.
13F, No. 31, Lane 169, Kangning St.,
Xizhi Dist., New Taipei City, Taiwan (R.O.C.)
Tel: 886-2-2695-9688
Fax: 886-2-2695-9693
e-mail: suntex@ms1.hinet.net
5040C TS-100_110_130/ Technical data subject to alternations/ Quality Systems ISO 9001/201112
www.suntex.com.tw/en

TS-100/TS-110/TS-130 Microprocessor pH/ORP/ION Portable Meter

Transcription

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