4
CONTENTS
1.
DESCRIPTION.......................................................................................6
1.1.
General
............................................................................................................................ 6
1.2.
Rack
................................................................................................................................. 7
1.3.
The various printed circuit boards
.................................................................................. 7
2.
INSTALLATION AND CONNECTIONS...............................................8
.1.
Installation: recommendations
........................................................................................ 8
.2.
Electrical connections of the MX52 Unit (Fig. 8)
........................................................... 8
2.2.1.
Alternative power supply......................................................................................... 8
2.2.2.
DC power supply ..................................................................................................... 9
.3.
Detectors (Figures 9 and 12)
........................................................................................... 9
2.3.1.
Explosimetric detectors of PONT type .................................................................... 9
2.3.2.
3-wire detectors 4-20 mA: 3 connecting wires for shielded cable ........................ 10
2.3.3.
2-wire detectors 4-20 mA: 2 connecting wires for shielded cable ........................ 10
2.3.4.
FIRE detectors: 2 connecting wires for shielded cable ......................................... 10
2.3.5.
FLAME detectors: 2, 3 or 4 connecting wires for shielded cable depending on
utilization............................................................................................................................... 10
2.3.6.
CO2 detector of type “Ventostat VT” ................................................................... 12
2.3.7.
Specific case of intrinsic safety detectors .............................................................. 12
2.3.8.
Other detectors with standardized current output .................................................. 13
2.3.9.
Parking application................................................................................................ 13
.4.
Connecting the unit to external devices
......................................................................... 14
2.4.1.
Slaving controls ..................................................................................................... 14
2.4.2.
4-20 mA current outputs (Fig. 12) ......................................................................... 15
2.4.3.
RS 232 and RS 485 outputs ................................................................................... 15
2.4.4.
Remote acknowledgement ..................................................................................... 17
3.
STARTING UP......................................................................................17
3.1.
Checking the installation
............................................................................................... 17
3.2.
Switching on the unit
..................................................................................................... 18
3.3.
Operating modes
............................................................................................................ 19
3.3.1.
Audio warning device (buzzer) ............................................................................. 19
3.3.2.
Light-emitting diodes (LED) (Fig. 26) .................................................................. 19
3.3.3.
Alarm thresholds.................................................................................................... 19
3.3.4.
Fault thresholds...................................................................................................... 23
3.3.5.
Measuring unit ....................................................................................................... 24
Содержание Oldham MX52
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