Operator Manual
Page
28
of
40
P/N 1580281
SEC3120 Digital Transmitter
Sensor Electronics Corporation
Rev 10, 20150707
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
c
alibration gas value to the sensor, or ‘ABORT
CHANGES’ to return to the previous screen.
The Following screens are displayed:
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
SENSOR ONE
1. WAIT FOR START
-ENT- TO ABORT
SPAN CAL ‘present gas value’
SENSOR
ONE / TWO
PREV.
–ENT– START
SPAN CAL
SENSOR ONE
1. IN PROGRESS
-ENT- TO ABORT
SPAN CAL
SENSOR ONE
1. COMPLETE
DONE, STOPPING…
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
SET CALIBRATION VAL.
1. COMPLETE
DONE, STOPPING…
SELECT SENSOR ONE/TWO
ZERO
*
SPAN
CAL. VAL 2.50