Autosampler
Operation
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Section 8
Autosampler Error Messages
Error Code
Description
E036
Bad Value Entered – The value that was entered into
the meter was outside of the
allowable range of values. Verify the value range and reenter the value.
E200
E201
Communication Error – There is an error in communication between the meter and
autosampler. Check cable connections, communication protocols and meter settings
and then retry running the autosampler. The baud rate of the meter must be set to
1200 to run the autosampler.
E202
Autosampler Jam – The autosampler cannot properly move the arm assembly. Press
the
f1 (pause) key and clear any obstructions from the autosampler. If the jam does
not clear, turn the autosampler off and wait a minute before turning it back on. The
autosampler should return to the home position.
E203
Unstable Readings – The measurements taken while using the autosampler were
unstable. Check the electrode for proper function and ensure that the electrode
cables are properly connected.
For assistance with Orion products, contact Technical Support by email at
wai.techservbev@thermofisher.com
or by phone – within the United States call 1-800-225-1480
and outside the United States call +1-978-232-6000 or fax +1-978-232-6031.
For additional product information, contact your local authorized dealer, local Thermo Scientific
Orion technical sales representative or contact us using the Water and Laboratory Products
(WLP) information on the page back of this manual.
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Orion Dual Star pH/ISE Benchtop Meter User Manual
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9
Customer Services
Troubleshooting Guide
Electrode Stability Test
1. In the measurement mode, press the setup key to enter the setup menu. Press the ▲ / ▼
keys to highlight Instrument Parameters and press the f2 (select) key. Press the ▲ / ▼
keys to highlight Troubleshooting and press the f2 (select) key.
2. Press the ▲ / ▼ keys to highlight Stability Test and press the f2 (accept) key. Press the
▲ / ▼ keys to highlight Channel 1 or Channel 2 and press the f2 (accept) key.
3. Make sure that the electrode or probe to be tested is connected to the channel that was
selected in the previous step and press the f2 (yes) key.
4. Place the electrode or probe in an appropriate solution with a stable temperature and press
the f2 (yes) key.
•
A pH 7 buffer is recommended for a pH electrode.
•
A calibration standard with a moderate concentration of the ion of interest is
recommended for an ion selective electrode (ISE).
•
An ORP standard is recommended for an ORP electrode.
5. The meter will perform the stability test and show the mV per minute drift and noise on the
display.
6. Press the f1 (escape) key to return to the measurement mode.
S E C T I O N 9
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Orion Dual Star pH/ISE Benchtop Meter User Manual
Thermo Scientific
Customer
Services
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Section 9
Meter Self Test and Checkout
A meter self-diagnostic test is performed automatically when the meter is powered on and can
be manually activated from the setup menu. The self test that is performed during the meter
power up does not require any operator action. If the self test is activated from the setup menu,
the operator must press the meter keys when prompted during the test.
Meter Self Test
1. In the measurement mode, press the setup key to enter the setup menu. Press the ▲ / ▼
keys to highlight Instrument Parameters and press the f2 (select) key. Press the ▲ / ▼
keys to highlight Troubleshooting and press the f2 (select) key.
2. Press the ▲ / ▼ keys to highlight Self Test and press the f2 (accept) key.
3. Disconnect all of the electrodes and probes from the meter, attach both BNC shorting caps
to the two BNC inputs and press the f2 (yes) key.
4. Press the f2 (yes) key to start the self test.
5. The meter will perform an accuracy test. When the meter displays Accuracy Test Passed,
press the f2 (next) key.
6. The meter will perform an EPROM test. When the meter displays E2Prom Test Passed,
press the f2 (next) key.
7. The meter will perform a keypad test. Press each of the blinking keys shown on the display
in the order that they are shown. When the meter displays Keypad Test Passed, press the
f2 (next) key.
8. The meter will display Self Test Passed. Press the f1 (escape) key to return to the
measurement mode.
Note: If any problems are found during the self test, refer to the
Meter Error Codes
section.
Meter Checkout
1. After the self test is complete, the meter will return to the measurement mode. Keep all of
the electrodes disconnected from the meter and keep the BNC shorting caps attached to
the BNC inputs on the meter.
2. Set the measurement mode for both channels to pH. The meter should read a steady 7.000
pH ± 0.002 pH on both channels. If the meter does not read a steady 7.000 ± 0.002,
perform a one point pH calibration with the BNC shorting caps attached to the BNC inputs.
Set the pH value to 7.000 and the slope value to 100.0. Refer to the
pH Calibration
Procedure
section for detailed instructions.
3. In the measurement mode, the meter should read a steady 0.0 mV ± 0.2 mV. If the meter
does not read a steady 0.0 mV ± 0.2 mV with the BNC shorting caps attached to the BNC
inputs, contact Technical Support.
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