Diagnostics Menu; Meter Self Test Procedure - Thermo Scientific Orion Star A320 Series Manual

Chapter 3 Meter Setup Menus
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54 Orion Star A320 Series Portable Meter User Manual
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Diagnostics Menu

Use the Diagnostics Menu to initiate a meter reset, test electrode stability, perform a meter self
test or view meter and module serial numbers and software revisions.
Factory Reset – All meter settings are reset to factory defaults. Data log, calibration log and
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methods are deleted. Use the default meter password of 111111 to complete the reset.
User Reset – All channel-specific measurement, calibration and alarm settings as well as
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all instrument settings are reset to factory defaults and methods are erased. Data log and
calibration log are retained.
Self Test – Tests the meter accuracy. A self test is also performed automatically by the
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meter at each power up.
Stability Test – Tests the stability of an electrode by measuring the raw input reading per
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minute drift and noise.
About Meter – Displays the meter model, serial number and software revision.
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Meter Self Test Procedure

1. In the measurement mode, press the setup key.
2. Press the p, q, t or u key to highlight Diagnostics and press the f3 (select) key.
3. Press the p or q key to highlight Self Test and press the f2 (select) key.
4. Disconnect all electrodes and sensors from the meter, attach the BNC shorting cap to the
BNC input if applicable and press the f2 (yes) key.
5. Press the f2 (yes) key to start the self test.
6. The meter will perform the self test. Once Self Test Passed is displayed, press the f1 (esc)
key and the meter will automatically proceed to the measurement mode.
Meter Verification Procedure (pH and pH/ISE Channels Only)
1. After completing the self test, the meter will return to the measurement mode. Keep all of
the electrodes and sensors disconnected from the meter and keep the BNC shorting cap
attached to the BNC input on the meter.
2. Set the measurement mode to pH. The meter should read a steady 7.000 pH ±0.002 pH.
a. If the meter does not read a steady 7.000 ±0.002, perform a one point pH calibration
with the BNC shorting cap attached to the BNC input. Set the pH value to 7.000 and the
slope value to 100.0. Refer to the pH Calibration section for detailed instructions.
3. Set the measurement mode to mV. The meter should read a steady 0.0 mV ±0.2 mV.
a. If the meter does not read a steady 0.0 mV ±0.2 mV with the BNC shorting cap
attached to the BNC input, contact Technical Support.
Thermo Scientific