Thermo Fisher Scientific Alpha COND 1000 - Manual (Page 16)

Operating Instructions Thermo Scientific Alpha COND 1000
8
5 MEASUREMENT
5.1 Display in Measurement mode
When the controller is initially powered on, it automatically enters into the
Measurement mode after the large dual LCD displays all segments briefly.
The upper display shows the measured Conductivity value, while the lower display
shows the temperature value. Annunciators at the right side of the display indicate
whether the controller is set for
μS or mS measurement. Similarly annunciators or
icons at the top or left side of the display shows the current status of controller, e.g.
“HOLD”, “SETUP”, “MEAS”, “CAL”, “READY”, etc.
5.1.1
Check electrode performance
To read current electrode slope and offset values without changing them:
1) Press the CAL key followed by the ENTER key without adjusting the security
code (leave code at “000”). The upper display shows the condition of the probe.
The lower display reading shows the temperature reading.
Note: If security code is changed to a value other than “000”, pressing the
ENTER key will return to the Measurement mode, without displaying electrode
information.
2) Press the ENTER key a second time to return to Measurement mode.
5.1.2
Checking set points
To read current set point values without changing them:
• Press
the RELAY Selection (Rel A / Rel B) key. The upper display shows
the set point for Relay A; the lower display shows “SP1”.
•
After two seconds the upper display shows the set-point value for Relay B;
the lower display shows “SP2”.
• After an additional two seconds, the controller returns to the Measurement
mode.