A12 2-Wire Toxic Gas Transmitter

A12 2-Wire Toxic Gas Transmitter
Series A12 UniSens - Support Data
NOTES
ENCLOSURE DIMENSIONS
6.312"
160.3 mm
4.85"
123 mm
(3) 3/4" NPT
4.625"
117 mm
WALL MOUNT
BRACKET,
(2) 5/16" DIA. THRU
- HARDWARE IS
CUSTOMER
SUPPLIED
4.95"
126 mm
1¼" NPT
3.90"
99 mm
2) Enclosure Material:
Light weight corrosion resistant
copper-free aluminum construction
with sand blast finish. Painted with
flat epoxy, gold in color. Neoprene
gasket. 2 5/8" dia. viewing window.
4.85"
123 mm
AUTO-TEST OPTION
FRONT VIEW
1) Enclosure Ratings:
Nema-3,4X,7 & 9
UL Standard 1203
CSA Standard C22.2-30
FM Class No. 3615
NEC CLASS I, Groups B, C & D
CLASS II, Groups E, F & G
CLASS III
SIDE VIEW
3) When transmitter is used in classified
areas, an x-proof seal should be used as
required by electrical code. The cable
entry into the enclosure must be sealed
with BOSS 315 RTV ATI p/n: 62-0001, or
equivalent multipurpose sealant. If conduit is used, it must also be sealed internally at the entry point to the housing.
ELECTRICAL INSTALLATION
LOOP POWER
LOOP POWER
GROUND TERMINAL
GROUND JUMPER (03-0067)
GND TERMINAL
LOCATED NEXT TO
RELAY BASE
RELAY BASE
EARTH GROUND
(OR CONDUIT)
LOOP POWER
18 or 20 GAUGE WIRE
RECOMMENDED
SENSING MODULE CONNECTOR
(03-0070)
SENSING MODULE
(GAS SPECIFIC)
ROUTE GRAY, VIOLET,
AND BLUE
WIRES UNDER GROUND
JUMPER
AUTO-TEST OPTION
8 COND. SHIELDED CABLE
TO SENSING MODULE CONNECTOR
SS-A12RH.PMD, DATE: 11/9/10, DRAWN: KJN, APPD:
Page 1 of 8
Series A12 UniSens - Support Data
TRANSMITTER ASSEMBLY
UniSens TRANSMITTER MODULE
EXPLOSION PROOF ENCLOSURE
RELAY BASE
PLUG TRANSMITTER MODULE INTO THE RELAY
BASE VIA THE RELAY PLUG MOUNTED ON THE
BOTTOM OF THE TRANSMITTER MODULE.
SENSING MODULE CONNECTOR
(03-0070)
INSURE LOCK RING IS TURNED FULLY TO THE LEFT.
INSTALL SENSING MODULE SNAP-LOCK CONNECTOR
INTO SENSING MODULE CONNECTOR. TURN SENSING
MODULE TO THE RIGHT, UNTIL IT SNAPS IN PLACE.
TURN LOCKING RING TO THE RIGHT UNTIL IT STOPS.
THIS LOCKS THE SENSING MODULE TO THE SENSING
MODULE CONNECTOR.
SNAP-LOCK CONNECTOR
LOCK RING
SENSING MODULE
(GAS SPECIFIC)
AUTO-TEST OPTION
WALL MOUNT BRACKET INSTALLATION
WALL MOUNT BRACKET
(47-0008)
(2) S.S. 10-32 x 1/4" FHMS
(92-0006) SUPPLIED BY ATI
BACK VIEW
SS-A12RH, (11/10)
Page 2 of 8
Series A12 UniSens - Support Data
TRANSMITTER ASSEMBLY with REMOTE SENSOR
(GAS SPECIFIC)
SS-A12RH, (11/10)
Page 3 of 8
Series A12 UniSens - Support Data
TRANSMITTER ASSEMBLY with DUCT SENSOR
ATI-0335
SS-A12RH, (11/10)
Page 4 of 8
Series A12 UniSens - Support Data
D10 (NO Auto-Test) SENSOR CALIBRATION ADAPTER ASSEMBLY (00-0248)
ATI-06 3
SS-A12RH, (11/10)
Page 5 of 8
Series A12 UniSens - Support Data
D28 (w / Auto-Test) SENSOR CALIBRATION ADAPTER ASSEMBLY (00-0248)
ATI-0501
SS-A12RH, (11/10)
Page 6 of 8
Series A12 UniSens - Support Data
D10 FLOWCELL ASSEMBLY (00-0249)
ATI-0462
SS-A12RH, (11/10)
Page 7 of 8
Series A12 UniSens - Support Data
G10 INSERTION PROBE (SENSING POSITION)
ATI-0298
G10 INSERTION PROBE (CALIBRATION POSITION)
1) To place sensor into the Calibration position, slowly back the sensor out of the housing, until you here a click
and the sensor doesn't move any more. The sensor is now positioned to be calibrated. Attach tubing to barb
fitting, and proceed with calibration. When calibration is complete, the sensor is now ready to be placed back
into the sensing position. To do this pull up on the locking pin, and slide the sensor in a little bit release the
pin,then continue to slide the sensor all the way into the pipe. The sensor is now in operation again.
ATI-0299
SS-A12RH, (11/10)
Page 8 of 8
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