85
MAN0604_Issue 09_02-2013
Apex
2110M8030
(7)
Enter the current
Level 2
password.
The
Calibration Menu
is displayed.
Calibration Menu
Gas Calibrate
Gas Challenge
4-20 mA Set Zero
Force 4-20mA
Force Relays
Force Digital
(8)
Navigate to the
Gas Calibrate
option.
Use the
up/down
keys.
(9) Press
ok
.
The
Zero Calibration
screen is displayed with the message:
Zero Gas then <OK>
(10) Ensure there is no gas present on the Certified Sensor.
If gas is suspected to be in the vicinity of the sensor either check the area using a calibrated
portable gas sensing device, e.g. Honeywell Analytic's Impact, or flow clean air over the
Certified Sensor using the Flow Housing accessory .
(11) Press
ok
.
The Transmitter Unit zeros the sensor. The LCD screen displays the message:
Calibrating - Wait
When successfully completed the LCD screen shows the message:
Success! OK:Continue
(12) Press
ok
.
The
Span Calibration
screen is displayed with the message:
Calibrate? OK/ESC
This gives the choice to stop the calibration procedure at this point (after zero calibration) or
continue to include the span and full gas calibration.
(13) Press
ok
to continue with
Span Calibration
.
To skip the span calibration process, press the
esc
key.
Note: At this point, depending on the type of gas cartridge fitted to the sensor, a choice of two
calibration gases may be displayed, e.g. C
7
H
8
has the options C
7
H
8
and CH
4
as choices.
If so choose the one that will be used for calibration and press
ok
. Otherwise the process
continues at the following step.
(14) Set the required test gas
Span Conc.
value.
Use the
up/down
keys.
4. OPERATION