GD-70D - 132 -
Definition of Terms
When the detector is used in a dusty environment, it is recommended that a dust
filter be installed in the inlet line.
Gas concentration indicated in the unit of one-hundredth of the volume.
Gas concentration indicated in the unit of one-millionth of the volume.
Gas concentration indicated in the unit of one-billionth of the volume.
Determine the relationship between the gas reading and the actual value by
using calibration gas.
When maintenance is performed on the detector, the alarm contact is
disconnected, and a signal to indicate Maintenance Mode status is sent out to
the external output signal.
The reading is unstable for a few seconds after the power is turned on. To
prevent malfunctions for that period, the alarm contact is deactivated. In addition,
a signal to indicate the initial clear status is sent out to the external output.
A function to obscure the influences of environmental changes, interference
gases, etc.
A function which delays alarm activation to prevent a false alarm caused by
noise.
The gas detection function is temporarily suspended during maintenance.
This is also called "point skip", which has the same function.
A unit to decompose gases under high temperatures. It pyrolizes special gases
under high temperature to make them detectable.
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