Page 89 - Gas Detection Systems Training Manual

Span Cal (and Calibration Value)
Arrow down to CAL. VAL to verify the span gas calibration value matches the concentration of the span calibration gas on hand. If not, select Enter and the following screen will appear.
Using the Up and Down arrows will allow the operator to change the calibration gas value of the sensor to match the calibration gas used to span the sensor. Once the correct value is displayed select ENTER.
ENTER to select ‘SAVE CHANGES’ to send the calibration gas value to the sensor, or ‘ABORT CHANGES’ to return to the previous screen.
The Following screens are displayed:
SELECT SENSOR ONE/TWO ZERO
SPAN
* CAL. VAL 2.50
SELECT SENSOR ONE/TWO ZERO
SPAN
* CAL. VAL 2.50 *
* SAVE CHANGES ABORT CHANGES
SET CALIBRATION VAL. 1. WAIT FOR START
SET CALIBRATION VAL. 1. IN PROGRESS
SELECT SENSOR ONE/TWO
ZERO * SPAN
CAL. VAL 2.50
SET CALIBRATION VAL. 1. COMPLETE
DONE, STOPPING...
To Span calibrate the sensor, move the cursor to SPAN and select ENTER.
Apply clean air (N2 for an oxygen sensor) and wait for the ‘present gas value’ to indicate a stable value.
Select ENTER.
The following screens will be displayed.
SPAN CAL ‘present gas value’ SENSOR ONE / TWO
PREV. –ENT– START
SPAN CAL
SENSOR ONE
1. WAIT FOR START
-ENT- TO ABORT
SPAN CAL SENSOR ONE
1. IN PROGRESS
-ENT- TO ABORT
SPAN CAL
SENSOR ONE
1. COMPLETE DONE, STOPPING...
Operator Manual
SEC3120 Digital Transmitter
Page 28 of 40 P/N 1580281 Sensor Electronics Corporation Rev 10, 20150707