Crowcon Gasflag Installatie-, bedienings- en onderhoudsinstructies voor de installateur en de gebruiker - Pagina 8
Blader online of download pdf Installatie-, bedienings- en onderhoudsinstructies voor de installateur en de gebruiker voor {categorie_naam} Crowcon Gasflag. Crowcon Gasflag 8 pagina's. Single channel control panel alarm only apparatus
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total number that can be supported will depend on the power supply rating.
The Gasflag is supplied with a power supply unit capable of powering up
to two Gasflag units. If more then two units are to be daisy chained
together then a higher rated power supply is needed. In the "Figure 5.1"
electrical connections for connecting two Gasflag units together is shown.
Figure 5.1 Electrical connections for daisy chaining two Gasflags
6 GASFLAG SPECIFICATION
Dimensions
Weight
Sensor connection
Operating voltage
4-20 type
Fault current
Operating temperature
Humidity
Trip point hysteresis
Response time (typical)
Connections
Relay outputs
Standard Power Supply
145 x 210 x 46 mm
<500 g
Two or three wire connection to sensor via screened
cable
13-28 V dc
Selectable source or sink
<3 mA and >23.5 mA
–20°C to +70°C (–4°F to 158°F)
0-99% RH, non-condensing
Alarm hysteresis set at approximately 0.5 mA
Fault hysteresis set at approximately 0.2 mA
Time to alarm <1 second
Terminals accept cables of cross sectional area 0.5 to
2
2.5 mm
Single pole change-over for use with dc signals. The
relay contacts are rated 1 A at 30 V dc
15 V DC 500 mA
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