Page 60 - PBL71 OI/AXM630-EN AZTEC 600 SS (WIRO)

Aztec 600 ISE ammonia and fluoride
Single-stream ion-selective analyzers 10 Diagnostics
10.2 Cell Diagnostics
Cell Diagnostics enables the user to control the operation of the analyzer manually – bringing in reagents and sample etc. It also displays the detector output in real time giving an insight into how the analyzer is performing.
Note.
If this procedure is selected when the analyzer is in operation, a warning is displayed:
Note.
Select Back and press to return to normal operation. Select Continue and press to continue to cell diagnostics. This stops the current analyzer operation:
Fields
Description
Pump Motor
Enables the user to toggle the pump on and off.
Heater
Enables the user to toggle the heater on and off
Valve
Enables the user to select which valve to open (and therefore which liquid to import). Only one valve can be opened at any one time.
Millivolts
Displays the probe voltage (–1280 to 2047 mV) in real time.
Temperature
Displays the flow cell temperature in real time.
10.3 Relay Test
All of the alarm relays can be set individually or reset to check their operation.
10.4 Current Output Test
Within the Current Output Test Screen the user is able to check the analyzer current outputs manually.
A calibrated ammeter is required for this test. Put the leads from the ammeter onto the two current output terminals on the I / O board – see Section 3.5.1, page 14.
Check that the value shown on the analyzer LCD is the same value shown on the ammeter.
Use the and keys to increase / decrease the milliamp value.
If the ammeter and analyzer do not agree it may be necessary to recalibrate the current outputs – see Section 6.5.2, page 38.
Note. This procedure affects the analyzer relay functions and the analyzer overrides the normal state.
Note. This procedure affects the current outputs of the analyzer and the analyzer overrides their normal state
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