MSA ULTIMA X-Series, Руководство по эксплуатации

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Appendix: Optional Internal Relays and RESET Button MSA
ULTIMA X ® Series
GB
93
Permissible Cable Length for the ULTIMA X
®
Series with Internal Relays
[4-20 mA models]
The permissible cable length varies for models with or without internal relays.
Specifications for Relays in the ULTIMA X
®
Series Gas Monitor with Internal
Relays
Sensor type
Supply
voltage Wire cross-
section Max. cable
length Max. load resist-
ance [mA output]
Combustible
gases, catalytic 24 V DC 1.5 mm
2
800 m 500 Ohm
Combustible
gases, IR 24 V DC 1.5 mm
2
500 m 500 Ohm
Toxic gases and
oxygen 24 V DC 1.5 mm
2
2000 m 500 Ohm
Screened cable is recommended for the installation.
Temperature range -40 °C to +60 °C
Humidity 15 % to 95 % RH non-condensing
Relays 3 alarms SPDT [single pole, double throw]
Fault relay [normally ener-
gised] SPDT [single pole, double throw]
Relay Ratings At 125 V AC or 250 V AC,
non-inductive 5.0 A or 5 A at 75 W
At 30 V DC, non-inductive 5.0 A or 5 A at 75 W
Power consump-
tion [instrument
with relay] Toxic gases and oxygen At 24 V DC max. 80 mA
Combustible gas, catalytic At 24 V DC max. 200 mA
Combustible gas, IR At 24 V DC max. 250 mA