Chauvin Arnoux C.A 10101 User manual

pH-meter & conductivity-meter
DT - Calibration procedure
C.A 10101
C.A 10401

2
CONTENTS
1. SUMMARY...................................................................................................................................... 3
1.1 General description ............................................................................................................. 3
1.2 Running the device ............................................................................................................. 3
2. FUNCTIONAL VERIFICATION ...................................................................................................... 5
3. ERROR MESSAGES...................................................................................................................... 7
4. FIRMWARE UPDATE .................................................................................................................... 8
4.1 Firmware update using boot loader .................................................................................... 8
5. INSTRUMENT CALIBRATION..................................................................................................... 11
5.1 Calibration of C.A 10101 ................................................................................................... 11
5.1.1 Requirement ........................................................................................................... 11
5.1.2 Calibration connection ............................................................................................ 11
5.1.3 Calibration operation............................................................................................... 12
5.2 Calibration of C.A 10141 ................................................................................................... 19
5.2.1 Requirement ........................................................................................................... 19
5.2.2 Calibration connection ............................................................................................ 19

3
1. SUMMARY
1.1 GENERAL DESCRIPTION
Instrument
C.A 10101
C.A 10141
Function
pH / ORP meter
Conductivity meter
1.2 RUNNING THE DEVICE
There are two ways to power the device:
- Cells: Open the battery cover at the back of the device and insert 4 AA cells.

4
- USB: open the USB cover at the bottom of the device and connect a micro USB type B cable in.
On the other side, connect to a powered computer or a USB wall plug.
The device should start. If not, press power button for two seconds.

5
2. FUNCTIONAL VERIFICATION
This process confirms that the device can work properly but it does not verify the device’s
specifications.
Power up the device with cell as seen previously and then follow the process according to
the device part number
Instrument C.A 10101 or C.A 10141
Needed
material
Computer with Windows ® 7 or later
Micro USB type B cord.
Process
Measure
Connect the sensor and do a measurement in a reference solution.
Note: A sensor calibration is requested to have a precise measurement. Refer to the
user’s manual (to be downloaded from the website) for procedure
- Reset sensor calibration
Keyboard
Press the backlight button , the backlight should be on.
Press the pH/mV button (or the toggle measurement button ).
Measurement displayed should change.
Press the MEM button, MEM should appear temporarily on the display.

6
Instrument C.A 10101 or C.A 10141
Press , the last calibration coefficients should be displayed. Do a long press on
the same button to back to measurement.
Disconnect the sensor, and press or : temperature (Manual Temperature
Setting) should increase or decrease.
Display
Device off, keep pressing . All the symbols of the display should be on
MEM FULL
REC
MEM
%
Ref 20°C Ref 25°C
SET COR.TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
USB Connect the device to the computer through the USB cord. Windows should mount the
USB Mass storage drive and may ask to format it.

7
3. ERROR MESSAGES
Instrument may detect some errors, and signal these errors displaying “Er.XX”, with XX the
error code.
Error Signification Action
01
Hardware malfunction detected
The instrument must be sent back to
customer service.
02
Error in internal memory
Format it using Windows.
03
No longer exists on electrochemistry.
The instrument must be sent back to
customer service.
10
The instrument has not been adjusted or is not correctly adjusted.
Apply the embedded adjustment
procedure.
11
The update of the internal software is not compatible with the
instrument (the software is that of another instrument of the line).
Not implemented yet.
Install the correct internal software in
your instrument.
12
The update of the internal software is not compatible with the
electronic boards in the instrument.
Reload the previous internal software
into your instrument.
13
Recording scheduling error.
Check that the instrument’s time and
the time of the Data Logger Transfer
software are the same.
14
Calibration error. The measured value is too far from the value of
the standard solution of the selected calibration set.
Check that the solution used in fact
belongs to the selected set. If
necessary, return to the initial
calibration.
15
Calibration error. The stabilization time is too long.
16
pH calibration error. Two buffer solutions having the same value
were used for the calibration.
17
Calibration error (ORP and pH). The calculated offset is too large
(configurable threshold in production, typically 58 mV)
Redo the calibration. If the error
persists, check the buffer solution or
replace the electrode.
18
pH calibration error. The calculated slope is too large (> 105%) or
too small (< 85%). (Configurable threshold in production)
Redo the calibration. If the error
persists, check the buffer solution or
replace the electrode.
19
Calibration error. The temperature (ATC or MTC) is outside of the
specifications of the standard solutions.
Redo the calibration in a room where
the temperature lie
s within the
specifications of the buffer solution
20
Calibration error. The file defining the set of calibration solutions is
missing.
Download it from our web site:
www.chauvin-arnoux.com
21
Calibration error. The file defining the set of calibration solutions is
not in conformity
Check that it is the right file. If you
have modified it, check the format; in
particular, the decimal separators
must be points, not commas.
22
Recording error. Power was cut off while recording was in
progress.
50
Calibration error. Measurement error for the calibration.

8
4. FIRMWARE UPDATE
The procedure is the same for both instrument, but the firmware to download is specific to each ones.
4.1 FIRMWARE UPDATE USING BOOT LOADER
MEM FULL
REC
MEM
%
Ref 20°C Ref 25°C
SE
TCOR. TD
S
REF TEMP
no
cor
cor
f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
Figure 1 LCD OFF
Start with the instrument off, nothing is displayed on the screen.
Press “MEM/REC” then “ON/OFF” the boot loader goes in the “wait
for firmware update” and display “boot”:
Remark: While “MEM/REC” is kept pressed “boot” is displayed.
The Bootloader revision may be displayed pressing the “Backlight”
button.
+
MEM FULL
REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM

9
Once all buttons are released, LCD screen then shows “COPy” and
a virtual USB drive is mounted on the PC: Connect the instrument
to the PC with a micro USB cable.
The user can copy the firmware (file name “firmware.bin”) on the
mounted disk.
Once the file is copied, or if the file is already present on the virtual
USB drive, it can be copied to internal Flash with a short press on
“MEM/REC”.
If the user wants to stop the procedure, it makes a long press on
“ON/OFF”.
MEM FULL
REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
Figure 2 power ON for a firmware
update
When the user decide to copy the firmware in the internal Flash,
the bootloader
- Check the firmware intergrity (check sum…)
- Erase the whole flash dedicated to applicative firmware.
- Write the internal Flash with the update.
During this step (≈5s) the screen displays ‘LOAd’.
MEM FULL
REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
Figure 3 update in progress
At the end of the firmware copy, we have a message FAIL or
PASS.
Pressing “ON/OFF” will turn OFF the product (back to “backup
mode”).
Pressing another button will launch the applicative firmware.

10
In case of “Fail”, pressing a button will turn OFF the product.
MEM FULL
REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
Figure 4 update PASS
message

11
5. INSTRUMENT CALIBRATION
5.1 CALIBRATION OF C.A 10101
5.1.1 Requirement
-In order to proceed to the calibration of C.A 10101, it is recommended to use the C.A 10101
powered by batteries. If it is powered by USB, an USB isolator shall be used to connect the C.A
10101 to the PC (You also need an USB cable with a Micro-B connector on one end and a Type A
on the other)
-Following equipment is needed:
Calibration cable 695779
For pH input : voltage calibrator with following performance: 0V±10µV (20µV max),
2V±100µV (200µV max) and an adaptor to connect it on the BNC input of the calibration
cable
For temperature input: resistors of 1000Ω±0.15Ω(0.3Ωmax) and 1500Ω±0.15Ω(0.3Ω
max) and an adaptor to connect to the jack input of the calibration cable.
5.1.2 Calibration connection
-If you want to power the C.A 10101 with USB, connect it to the USB PC via the USB isolator.
-Power it on by a long pressing on button.
Figure 5 Calibration cable (695779)
USB
Isolator

12
5.1.3 Calibration operation
During this mode, measurement type selection button is
disabled.
Instrument calibration is done by first entering into calibration
mode.
After a short press on and during the 3 seconds
which the last sensor calibration values are displayed, a short
press on both MEM/REC and BACKLIGHT will makes the
device entering in calibration mode.
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR.TDSREF TEMP
no co r
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
The user will have the choice of either adjusting the
temperature measurement parameters or the pH measurement
ones.
A short press on or arrows will display
the choice.
“TEMP” is for Temperature calibration
“VOLT” is for pH calibration
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
A short press on will validate the choice.

13
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
TEMP: the resistor value to be applied physically in place of
the PT1000 is displayed.
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR.TDSREF TEMP
no co r
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
MEM FULL
REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
“Set” blinks waiting for the user to plug the right value of
resistor and a short press on to validate and start
the calculation of new parameters for the instrument.
During calibration, “run” is displayed blinking meaning that it is
ongoing.

14
In a second step, the display requests another resistor value
(1500 Ohm) to be applied physically in place of the PT1000 is
displayed.
“Set” blinks waiting for the user to plug the right value of
resistor and a short press on to validate and start
the calculation of new parameters for the instrument.
During calibration, “run” is displayed blinking meaning that it is
ongoing.
When there is no more value to use as input, “tESt” is
displayed thus allowing the user to check the validity of the
new instrument parameters.
Different values of resistors can be measured to test it.
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR.TDSREF TEMP
no co r
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
A short press on will bring on the save screen
where the user can use or arrows to
select “yES” or “no” for saving or not saving the new
parameters. Choice must be validate by a short press on
.
The display returns to the screen to select the measurement
parameters (temperature or pH) to be adjusted.

15
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
A long press on will terminate the instrument
calibration and return it into measurement mode. “Cancel” is
displayed.
The values considered will be the ones from the last
calibration.
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
A long press on “ON/OFF” will turn off the
instrument and the values from the last calibration are
restored.
VOLT: The first step request to place a Short Circuit” (or
0V±10µV, ±20µVmax) at the input of the pH sensor.
The instrument waits for the user to apply the short circuit by
displaying “SET” blinking. A short press on will
validate and start the calibration
During calibration, “run” is displayed blinking meaning that it is
ongoing.

16
When it is finished, the next value required as input is
displayed. “SET” is again blinking waiting for validation
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR.TDSREF TEMP
no co r
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
The instrument waits for the user to apply this voltage by
displaying “SET” blinking. A short press on will
validate and start the calibration
During calibration, “run” is displayed blinking meaning that it is
ongoing.
When there is no more value to use as input, “tESt” is
displayed thus allowing the user to check the validity of the
new instrument parameters. A voltage can be measured to test
it.
Only apply a voltage in [-2.000V, 2.000V].
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
A short press on will bring on the save screen
where the user can use or arrows to
select “yES” or “no” for saving or not saving the new
parameters. Choice must be validate by a short press on
.
The display returns to the screen to select the measurement
parameters (temperature or pH) to be adjusted.

17
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
A long press on without validating the new setup
will terminate the instrument calibration and return it into
measurement mode. “Cancel” is displayed.
The values considered will be the ones from the last
calibration.
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM
A long press on will turn off the instrument and
the values from the last calibration are restored.

18
Before testing new values, an error screen is displayed if offset
and/or gain values are out of range. The device calibration
mode is thus left and instrument is back in real time
measurement mode.
MEM FULL REC
MEM
%
Ref 20°C Ref 25°C
SET COR. TDSREF TEMP
no cor
cor f(T)
cor lin
MTC
ATC
CAL SET
OFFSET
AM
PM

19
5.2 CALIBRATION OF C.A 10141
5.2.1 Requirement
-In order to proceed to the calibration of C.A 10141, it is recommended to use the C.A 10141
powered by batteries. If it used powered by USB, an USB isolator shall be used to connect the C.A
10141 to the PC (You also need an USB cable with a Micro-B connector on one end and a Type A
on the other)
-Following equipment is needed:
Calibration cable 695780
For conductivity input: resistors of 10MΩ, 20KΩ, 2KΩ, 200Ωand 1Ωwith an accuracy of
0.05% (0.1% max)
For temperature input: resistors of 1000Ω±0.15Ω(0.3Ωmax) and 1500Ω±0.15Ω(0.3Ω
max) and an adaptor to connect to the jack input of the calibration cable.
5.2.2 Calibration connection
-If you want to power the C.A 10141 with USB, connect it to the USB PC via the USB isolator.
-Power it on by a long pressing on button.
Figure 6 Calibration cable (695780)
USB
Isolator

20
In order to keep good measurement precision and avoid calibration failure, care must be taken for the
connection of the resistors via the cable 695780.
During conductivity calibration, the device will ask for some resistor value and connection must be done
properly as follow:
•Short circuit (SC):
•Open circuit (OC):
•10MΩ:
•20KΩ:
OUTER
SIDE 1 (red)
INNER SIDE
1 (white)
OUTER
SIDE 2 (blue)
INNER SIDE
2 (yellow)
OUTER
SIDE 1 (red)
INNER SIDE
1 (white)
OUTER
SIDE 2 (blue)
INNER SIDE
2 (yellow)
OUTER
SIDE 1 (red)
INNER SIDE
1 (white)
OUTER
SIDE 2 (blue)
INNER SIDE
2 (yellow)
10MΩ
Shield screen
connected to
OUTER SIDE 2
OUTER
SIDE 1 (red)
INNER SIDE
1 (white)
OUTER
SIDE 2 (blue)
INNER SIDE
2 (yellow)
20KΩ