Resetting The Calibration Range And Life Counter - Systech Instruments EC900 series Operator's Instruction Manual

17.1 Resetting the Calibration Range and Life Counter

After replacing a cell it is necessary to reset the required calibration range and cell life counter. This
must be performed using the USB Com port and the Systech Illinois Comms Utility communications
software provided. The procedure is as follows:
Ensure the PC has the Systech Illinois Comms Utility installed.
1. Connect the cable provided between the USB on the PC and the analyzer.
2. With Systech Illinois Comms Utility, type the command to be sent in the OUTPUT window,
then press return or the send button. If successful the instrument will reply with "0,1 or 2".
If the comms fails the instrument will reply with "?"
3. For all cells except hydrogen cells; Type SPAN=1 0.028 and then SPAN=2 2.50.
For hydrogen cells (900 057, 900 059, 900 032); Type SPAN=1 0.14 and then SPAN=2
0.14
4. Now calibrate the instrument as normal following the procedure under calibration.
Once the instrument is calibrated it is necessary to reset the Life function. For this type SAVESPAN 1
(if for the ppm cell) and send (carriage Return). This will reset the Life counter to 100%. Likewise
SAVESPAN 2 for the % cell.
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EC900 Series Operation Manual
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