SafEye
™
™
Series 200 IR Gas Detector - User’s and Maintenance Manual
SPETCREX INC.
Doc. No. TM792100, Rev. B, Oct 1997
- 37 -
2. 5. 4.
Detector Terminal Wiring
The detector contains a terminal board consisting of two terminal blocks.
Power Supply:
The input power is supplied to terminal 1. The Return is connected to 2.
Note:
Ensure that the detector unit receives a minimum of 18 Volts DC and
does not exceed 32 Volts DC.
Fault Relay:
The Fault Relay is normally open. The SPST relay is at terminal 4 and 5. The contacts
are closed when the detector is in normal operation.
Alarm Relay:
The Alarm Relay is SPDT Relay. Terminals 6 and 7 are Normally Open and the
contacts are closed when the detector is in the Alarm status. Terminals 7 and 8 are
Normally Closed and the contacts are open when the detector is in the Alarm status.
Accessory Relay:
The Accessory output is Normally Open SPST relay. Its contacts are at terminals 9
and 10. It can be defined per user requirements.
Controller
Power Supply
Relay Loop
Detector
E
O
L
1
2
4
5
6
7
Figure 2-7. Typical 4 Wire Controller
Note: To protect the dry contacts from voltage surges when connected to reactive
loads (electric motors, sirens, etc.) connect an appropriate varistor over these
contacts.
