Page 88 - Gas Detection Systems Training Manual

Zero Cal
ENTER on ‘SELECT SENSOR’ ‘ONE/TWO’ to choose which sensor to perform calibration operations.
DOWN switch to select sensor one Up switch to select sensor two
To Zero the sensor, move the cursor to ZERO 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.
* SELECT SENSOR ONE/TWO ZERO
SPAN
CAL. VAL 2.50
SELECT SENSOR ONE/TWO * ZERO
SPAN
CAL. VAL 2.50
ZERO CAL ‘present gas value’ SENSOR ONE / TWO
PREV. –ENT– START
ZERO CAL
SENSOR ONE
1. WAIT FOR START
-ENT- TO ABORT
ZERO CAL SENSOR ONE
1. IN PROGRESS
-ENT- TO ABORT
ZERO CAL
SENSOR ONE
1. COMPLETE DONE, STOPPING...
SETTING CAL. DATE SENSOR ONE
1. WAIT FOR START
-ENT- TO ABORT
SETTING CAL. DATE 1. IN PROGRESS
ZERO CAL
SENSOR ONE
1. RECORDING CAL DATA
ZERO CAL.
1. COMPLETE
DONE, STOPPING...
SELECT SENSOR ONE/TWO * ZERO
SPAN
CAL. VAL 2.50
Operator Manual
SEC3120 Digital Transmitter
Once complete the SEC3120 will return to the calibration menu. The sensor has been successfully zeroed if no faults are indicated.
Page 27 of 40 P/N 1580281 Sensor Electronics Corporation Rev 10, 20150707