The supply gases (hydrogen, combustion air, zero gas and calibration gas(es)) must be available
with an inlet pressure of 3 bar above atmospheric. A higher zero gas and calibration gas pressure
leads to an increased consumption, a lower pressure may lead to an incorrect measurement since
additional sample gas may be drawn in.
Fig. 6.1 Rear panel of FIDAMAT 5E
6.3 Electric Connections
Warning! The following must be observed for the electric connections:
VDE 0100 “Regulations for the installation of power systems with mains
voltages below 1000 V”.
A mains disconnection device must be provided in the building installation
(see rating plate for loading capacity).
– Check that the local power supply agrees with that specified on the rating plate on the device.
– The required signal cables must be connected to the 25-pin trapezoidal plugs X1, X2 and X3
and the 5-pin round plugs X4, X5 and X6 according to the pin assignment diagram.
X2
X3
X4
X6
X1
Calibration
gas 3
Mains
Calibr. gas 4
Calibr. gas 1
Zero gas
Combustion
air
H
2
/HeCalibration
gas 2
X5
13
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