Spectrex 20/20MPI - Commercial IR3 Flame Detector - Manual (Page 33)

User and Maintenance ManualUser and Maintenance Manual 21
5 Technical Specifications
➣ In this chapter…
Electrical Specifications page 21
Output Signals page 22
Environmental Specifications page 22
5.1 Electrical Specifications
 Operating Voltage: 18-32 VDC
 Power Consumption:
 Max. 16 mA in Stand-by
 Max. 40 mA in Alarm
 Electrical outputs
 Dry Contact Relays:
Table 11: Contact Ratings
Relay Name Type Normal
position Maximum
Ratings
Alarm SPST N.O. 2A at 30 VDC
Fault * SPST N.C. 2A at 30 VDC
* The FAULT relay is normally energized and the contact is closed during
normal operation of the detector. The contact is open at Fault condition or
low voltage.
 0-20 mA Current Output:
 The 0-20 mA is source option only.
 The maximum permitted load resistor is 600 ohm.
Table 12: 0-20 Current Output
STATE Output
FAULT 0 + 0.5 mA
BIT FAULT 2 mA±10%
NORMAL 4 mA±10%
WARNING 16 mA±5%
ALARM 20 mA±5%