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User Manual - PolyGard
Multi-Gas-Controller MGC2-K Honeywell
Symbol
Description
XXXX
Seconds
0 s
Seconds
Alarm
0 ppm
Threshold
8.8.4 Power On Time
Gas sensors need a warm-up time, until the chemical process of the sensor reaches stable conditions. During
this running-in period the sensor signal can lead to an unwanted triggering of a pseudo alarm. Therefore, the
Power On time is started at each basic unit and each sensor head after power-on or voltage recovery. While
this time is running out, the device is in special mode and doesn't activate alarms. The Power On time appears
in the starting menu. During this phase the sensor head transmits "Warm-up time" instead of the measured
value.
The Power On Time of the individual components may be different. Only when the longest time has expired,
the system starts the measuring operation.
Symbol
Description
XX
Seconds
8.8.5 Deadband
The unwanted noise of the measured value around the zero point, caused by the basic drift of the sensor, can
be suppressed by activating a deadband with a range of 0% to 15% of the measuring range depending on
device.
If the measured value is within the set % value, the display shows 0. Natural zero-point fluctuations of sensors
downwards or upwards can thus be suppressed in the display. Default setting 0 means deadband deactivated.
The suppression also affects the analog output, because the measured value must not assume a different
display depending on the output.
When opening the calibration mode, the deadband function switches off automatically.
®
PolyGard
is a registered trademark of MSR
Phone 0049(0)8531/9004-0
Fax: 0049(0)8531/9004-54
MSR-Electronic GmbH, Bgm.-Schoenbauer-Str. 13, D 94060 Pocking www:msr-electronic.de Made in Germany
®
2
Default
Function
900
Time base for average calculation (range: 0 – 9999 sec.)
Delay time in case of overlay by the current value (range: 0 – 9999
120
sec.)
Alarm threshold that triggers the overlay by the current value
100
(range: 0 – 999 ppm)
Power On Time
Default
Function
30
Power On time (range: 0 – 999 sec.)
Deadband
30 s
0 %
Specification subject to change without notice
Page
27
GAMGC2-K_E_0320
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