Atest Gaz ProGas 4, User Manual

Page: 5 / 48

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1 Preliminary information
The ProGas 4 Gas Detector is a device designed as a component of the Gas Safety System and is intended
for operation under heavy duty industrial conditions with broad variations of environmental factors (high
temperatures, corrosive gases or vapours, moisture and dust).
Figure 1: Location and role of the device in Gas Safety System
1.1
Functional properties
Main characteristics
Variety of detected gases and vapours.
Wide operating temperature range.
Wide selection of communication interfaces and HMI panels: Modbus ASCII 4..20 mA, potential
-free relay outputs, LCD/FLED displays, wireless interface (Bluetooth).
Manufacturing option with audible warning.
Customized accessories dedicated for specific detectors (see Table 13).
Detectors furnished with a modern measuring head to achieve the topmost metering parameters.
Upon request, optional upgrade to IP66/IP67 protection class (provided that a suitable membrane
is applied).
Customized configuration of the electric current source (source / sink).
Basic functionalities
Non-invasive calibration and configuration – the gas detector can be calibrated and parametrized
(e.g. the alarm thresholds) in hazardous areas without opening the housing or turning off other
parts of the gas safety system (only for RS-485).
Ability to calibrate gas detectors mounted at inaccessible locations.
Remote communication with gas detector.
Electronic compensation of the influence of ambient temperature.
Self-diagnosis function.
Storing, in the memory of the gas detector such parameters as: substance CAS number, location
name, serial number, the intervals between mandatory calibrations, etc.
s. 5|27
User Manual: POD-064-ENG R05
Sigma
Control L
SCADA
WWW
ProGas 4 ProGas 4 ProGas 4 ProGas 4
ProGas 4 ProGas 4 ProGas 4
RS-485
4-20 mA
PK
Control Unit