65-2649RK-CH4-4 M2A Transmitter Operator’s Manual
31
4. When the desired target gas is on the display, press and release the ENTER button. The display will ask
SAVE IT? YES/NO
.
5. To discard the gas type change, press and release the DOWN/NO button. The display will ask
DO OVER?
YES/NO
. Press the DOWN/NO button. The display will ask
ABORT? YES/NO
. Press the UP/YES button.
The M2A will return to normal operation without changing the gas type.
To save the gas type, press and release the UP/YES button. The display will indicate
Gas Type Updated
, the
display will indicate the target gas and the detection range for a few seconds, and then the M2A will enter
Configuration Mode automatically so that the parameter settings in Configuration Mode can be verified or
changed.
6. While in Configuration Mode press and release the ENTER button to accept the displayed parameter setting
and move to the next one. Use the UP/YES and DOWN/NO buttons to adjust a setting. See “Chapter 5:
Configuration Mode” on page 27 for a complete description of Configuration Mode.
7. When you have reviewed and accepted the last item in Configuration Mode by pressing the ENTER button,
display will ask
SAVE IT? YES/NO
.
8. To save the configuration settings, press and release the UP/YES button.The display will indicate
Config
Saved
and the M2A will begin its warm-up sequence.
To discard the settings and review them again, press the DOWN/NO button. The display will ask
DO
OVER? YES/NO
. Press the UP/YES button and the display will indicate
Re-do Config
, then display the
target gas and the detection range for a few seconds before returning to Configuration Mode. Repeat steps 6
- 8 until the settings are as desired.
9. After the M2A completes its warm-up sequence, the display will indicate
CAL NEEDED
. Since the gas
type has been changed, a successful calibration must be performed before the M2A can enter normal
operation.
10. Press and release the UP/YES button to enter Calibration Mode. Normally, you must hold the UP/YES
button for 5 seconds to enter Calibration Mode, but since a calibration is required, only a momentary push is
needed to enter Calibration Mode after changing the gas type.
CO2
0 - 5,000 ppm
CO2
0 - 9,000 ppm
CO2
0 - 100% volume
CO2
0 - 50.0% volume
CO2
0 - 5.00% volume
METHANE
0 - 5.00% volume
METHANE
0 - 8980 ppm*
*Use this gas type for 0-9000 ppm CH
4
. 8980
ppm is the highest displayed value. Anything
higher is displayed as
OVER
.
Table 6: Gas Types
Gas Type
Choices
Detection Range
