ENMET PGD2 - Manual (Page 21)

ENMET Corporation PGD2
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In approximately 60 seconds the display will change to:
Then progress through all active channels.
C AUTION: If you choose [ ] OK you must calibrate all active channels. Make sure all required materials are available.
The PGD2 instrument enters the Span/Calibrate gas selection. The display will show the last concentration of gas used for calibration.
You may change the Span/Calibration by pressing the [
] button to decrease the value and the [ ] button to increase the value.
Press the menu button to accept the value
Then progress to the next active channel.
Example: Then Then
After all active channels Span/Calibration gas level sets the PGD2 enters Span/Calibration gas application.
Connect the calibration adapter to the appropriate ports.
The display will show:
(2.5 = 50% LEL)
N OTE : Some sensors for example, Chlorine, Ozone, Hydrogen chloride require longer periods of span/calibration gas application. For
this type of sensor it is recommended that you apply the span/calibration gas for 3 to 5 minutes prior to pressing the OK button.
Press the [ ] OK button, the display will show:
Example:
Apply the Span/Calibration gas. Example, 2.5%Ch4 (50% LEL). The display will show:
The PGD2 will auto calibrate, calibration time is approximately 3 minutes. At the end of the calibration the display will show:
And the will move on to the next channel to be calibrated.
N OTE : Some sensors for example, Chlorine, Ozone, Hydrogen chloride have cross sensitivity to other types of gasses and therefore
require the application of clean/zero air before they can be calibrated properly.
The Display will show:
Remove the Span/Calibration gas for the completed calibrated channel
Repeat the calibration steps for all active channels.
When the last active channel is calibrated the PGD2 instrument returns to operation mode.
ZEROING SENSORS
PLEASE WAIT
SET SPAN GAS SET GAS LEVEL CH4 LEVEL (R1)
2.5
APPLY 2.5 CH4
[
] OK
READING CH4
WAITING FOR GAS
CH4 Ready
XXX LEVEL
ADJUST TO
XXX ADJUSTED VALUE
APPLY XXX (NEXT GAS)
[
] OK