Det-Tronics U9500 Infiniti Gas Transmitter - Manual (Page 9)

95-8444 7 10.1
AUX RELAY LOW RELAY HIGH RELAY NC COM NO NC COM NO NC COM NO
FLT RELAY
S
POWER
RESET
PW
IN
NO COM NC
–
+
CAL
S
POWER OUT
–
+
+
–
B1669
–
–
+
+
24 VDC +
EXTERNAL
RESET
4 TO 20 MA
FAULT RELAY CONTACTS
SEE NOTES 2, 3
HIGH ALARM RELAY CONTACTS
SEE NOTES 2, 4
LOW ALARM RELAY CONTACTS
SEE NOTES 2, 4, 5
AUXILIARY ALARM RELAY CONTACTS
SEE NOTES 2, 4, 5
NOTE 1 CONNECT THE GREEN SENSOR LEAD TO THE CHASSIS GROUND LUG
ON THE INSIDE BOTTOM OF THE INFINITI ENCLOSURE.
NOTE 2 ALL RELAY CONTACT DESIGNATIONS INDICATE RELAY STATE
WITH NO POWER APPLIED — RELAYS DE-ENERGIZED.
NOTE 3 WITH POWER APPLIED AND NO FAULTS DETECTED,
THE FAULT RELAY IS NORMALLY ENERGIZED.
NOTE 4 ALARM RELAYS ARE PROGRAMMABLE AS A GROUP
TO BE EITHER NORMALLY ENERGIZED OR NORMALLY DE-ENERGIZED
WITH NO ALARMS DETECTED. REFER TO THE "SET-UP"SECTION OF THIS MANUAL.
NOTE 5 LOW, AUXILIARY AND HIGH ALARM RELAYS ARE PROGRAMMABLE
AS A GROUP FOR LATCHING OR NON-LATCHING OPERATION.
NOTE 6 THESE TERMINALS ARE CONNECTED INTERNALLY.
WARNING: WHEN IN NON-LATCHING MODE, THE CONTROL DEVICE MUST LATCH THE ALARM OUTPUT.
SEE NOTE 1
SEE NOTE 6
SENSOR
RED BLACK
GREEN
Figure 8—A Typical System - Infiniti Transmitter with a Toxic Gas / Oxygen Sensor, Non-Isolated Current Output and Relay Outputs
A
UX RELA
Y
LOW
RELA
Y HIGH RELA
Y
NC COM NO NC COM NO NC COM NO
FL
T RELA
Y
S
PO
WER
RESET
PW
IN
NO COM NC
–
+
CA
L
S
PO
WER OUT
–
+
+
–
C1668
–
–
+
+
–
+
24 VDC +
24 VDC +
EXTERNAL
RESET
4 TO 20 MA
FAULT RELAY CONTACTS
SEE NOTES 2, 3
HIGH ALARM RELAY CONTACTS
SEE NOTES 2, 4
LOW ALARM RELAY CONTACTS
SEE NOTES 2, 4, 5
AUXILIARY ALARM RELAY CONTACTS
SEE NOTES 2, 4, 5
NOTE 1 THE COMBUSTIBLE GAS SENSOR CONNECTS TO A PLUG
ON THE OPPOSITE SIDE OF THE TRANSMITTER FROM THE ELECTRICAL TERMINALS.
NOTE 2 ALL RELAY CONTACT DESIGNATIONS INDICATE RELAY STATE
WITH NO POWER APPLIED — RELAYS DE-ENERGIZED.
NOTE 3 WITH POWER APPLIED AND NO FAULTS DETECTED,
THE FAULT RELAY IS NORMALLY ENERGIZED.
NOTE 4 ALARM RELAYS ARE PROGRAMMABLE AS A GROUP
TO BE EITHER NORMALLY ENERGIZED OR NORMALLY DE-ENERGIZED
WITH NO ALARMS DETECTED. REFER TO THE "SET-UP"SECTION OF THIS MANUAL.
NOTE 5 LOW, AUXILIARY AND HIGH ALARM RELAYS ARE PROGRAMMABLE
AS A GROUP FOR LATCHING OR NON-LATCHING OPERATION.
NOTE 6 THESE TERMINALS ARE CONNECTED INTERNALLY.
WARNING: WHEN IN NON-LATCHING MODE, THE CONTROL DEVICE MUST LATCH THE ALARM OUTPUT.
SEE NOTE 1
SEE NOTE 6
COMBUSTIBLE GAS
SENSOR
Figure 7—A Typical System - Infiniti Transmitter with Combustible Gas Sensor, Isolated Current Output and Relay Outputs