ExTox 420106, Инструкция по эксплуатации

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Instruction Manual
ExTox IMC-8/-4
Page 10 of 24
BA_IMC-8_-4_e_2011-09-20.doc
5 Description
The following indications are valid for the standard types mentioned in paragraph 1. For special
types, generally with Article Number 7xxxxx, further amendments can be necessary. These will
then be part of an amendment to this Instruction Manual.
Documentation supplied with each IMC contains individually generated indications of the gas
flow, electrical circuit scheme, terminal assignment and construction of mounting plate.
5.1 Type IMC
5.1.1 Functions
▪ Course of Measurement
The transmitters build in the IMC also measure continuously. The channels of the IMC are acti-
vated in the menu Channel Configuration by setting the Mode ON.
▪ Monitoring of Ambient Air
Channels which are not needed for the IMC measurement can easily be used for a continuous
monitoring of ambient air. Performance of these channels corresponds to the normal measuring
operation of the control unit. Channels for monitoring of ambient air are also activated in the
menu Channel Configuration by setting the Mode ON.
▪ Status Monitoring
The following status monitoring functions are integrated in this version:
ƒ
rotary speed monitoring of both fans
ƒ
flow rate monitoring: message for under-scale of nominal range
ƒ
temperature monitoring of the measured gas cooler (if installed)
In the first two cases a message leads to system fault of the control unit.
As long as the measured gas cooler does not reach its operating temperature, for example dur-
ing the warm-up phase after initial operation, the gas suction pump remains switched off.
▪ Functional Extensions
For maintenance purposes the gas inlet of the IMC can be switched to the inlet test gas / flush-
ing air by means of the magnetic valve. For that purpose you have to select the menu Mainte-
nance. By means of the keys SHIFT + F4 it can be switched between both gas inlets.