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MGS-250 Manual
Parameter
36
Display Mode
The display can be turned on by using this
parameter. When set to ON the display never shuts
off (all operating modes).
shows the current gas concentration (or 0 if below
the squelch). Note that P.-09 is disabled if P.-19=0.
00
OFF during normal operation when the ppm
value is below the alarm setpoint (default)
01
ON
In either case, the display will blink the measured
PPM value during an alarm state.
RS485 Node Address
Sets the RS-485 node address (0001 to 0255).
Gas Groups / Specific Gas Selection
Selects either gas group number for broadband
operation or specific gas name for gas-specific
mode.
Broadband:
Select from 3 groups of gases:
1
2
3
Specific Gas: The actual refrigerant name is shown.
Select the appropriate refrigerant.
NOTE: Gas-specific detectors are factory calibrated
to
a
single
manufacturing equipment. If another refrigerant is
selected which differs from the factory calibrated
setting, the built in calibration no longer applies.
Further improvement in detector accuracy may be
gained by applying calibration gas containing the
newly selected refrigerant and adjusting the gas
detector reading to match (see Parameter P.-17).
Description
When ON the display
R134a, R404a, R407a, R407c,
R407f, R427a, R507,
HFO1233ZD
R422a, R422d HFO1234YF,
and HFO1234Ze
R22 (by itself).
refrigerant
using
specialized
6490-9000 Revision 3
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