15
IOM (Safety) - Installation, Operation and Maintenance
Optical Oxygen Analyzer
Unused entries shall be closed with suitable certied Ex db blanking elements with a minimum IP66 rating
After wiring the power and any input / output connections and before powering up the analyzer, the Rear (Wiring) Compartment lid should
be installed and fully tightened. Follow the detailed instruction found in Section 5.4.1.
3�8 Electrical Entries
3.9 Securing the Rear (Wiring) Compartment lid.
Section 3
Installation
The mating RTD Molex connection in the Junction Box is only available on OXYvisor models with Agency Approval selection “2”
(cULus CID2 and ATEX/IEC Zone 2 3G) per OXYvisor Conguration - Product Model Selection, Table 2.
Barben Optical Sensors (BOS) connect to the OXYvisor through a ber optic cable connection. The ber optic cable from the OXYvisor is easily
mated to the BOS oxygen sensor via a nger-tightened SMA coupler connection, located in the lower sensor junction box (J-Box). Both integral and
external RTD’s can be connected to the OXYvisor through the Rear (Wiring) Compartment and via the J-Box when the later connection is available.
Figures 10, 11 & 12 show some common arrangements for the OXYvisor and BOS sensors.
3.10.1 BOS Sensor with Integral and External RTD via J-Box
3.10 Sensor Connecon Opons
Figure 10 - BOS Sensor With Integral RTD Through Junction Box
When the BOS sensor is specied with an integral RTD, and the OXYvisor model is selected with Agency Approval “2” or “3”, the RTD can also be
connected through the J-Box via a Molex connector. See Figure 10.
ESC
OXYvisor
BOSx-FLEXSENSE
Oxygen
01/06/2017 10:55 AM
850.9 mBar
67.9°F
Err: 0
20.946
��
EXAMPLE - GENERAL ARRANGEMENT
OF OXYVISOR (General Purpose / Class I
Div. 2 / or Zone II 3G) and BOSx SENSOR
WITH INTEGRAL RTD
ANALYZER RTD
MOLEX CONNECTION
IN J-BOX
BOSx OXYGEN SENSOR
RTD MOLEX CONNECTION
IN J-BOX
BOSx OXYGEN SENSOR
WITH INTEGRAL RTD
(SEE BOSx DATA
SHEET FOR OPTIONS)
ANALYZER FIBER
OPTIC SMA
CONNECTION IN
J-BOX
FIBER OPTIC SMA
TO SMA COUPLER
P/N: B3907-1122
BOSx OXYGEN
SENSOR FIBER
OPTIC SMA
CONNECTION IN
J-BOX
Figure 11 - BOS Sensor And External RTD through Junction Box
ESC
OXYvisor
BOSx-FLEXSENSE
PT1000 RTD
Oxygen
01/06/2017 10:55 AM
850.9 mBar
67.9°F
Err: 0
20.946
��
EXAMPLE - GENERAL ARRANGEMENT
OF OXYVISOR (General Purpose / Class I
Div. 2 / or Zone II 3G) and BOSx SENSOR
WITH EXTERNAL RTD
ANALYZER RTD
MOLEX CONNECTION
IN J-BOX
BOSx OXYGEN SENSOR
RTD MOLEX CONNECTION
IN J-BOX
ANALYZER FIBER
OPTIC SMA
CONNECTION IN
J-BOX
FIBER OPTIC SMA
TO SMA COUPLER
P/N: B3907-1122
BOSx OXYGEN
SENSOR FIBER
OPTIC SMA
CONNECTION IN
J-BOX
BOSx OXYGEN SENSOR
WITHOUT RTD
(SEE BOSx DATA
SHEET FOR OPTIONS)
EXTERNAL RTD
3.10.3 BOS Sensor with External RTD via Rear (Wiring) Compartment
Figure 12 - BOS Sensor And External RTD or Zone 1
For OXYvisor installations in Zone 1, where the model is selected with Agency Approval “1”, the BOS sensor (as standard) is not allowed to be
installed with integral RTD. An external RTD will be the standard recommended installation. For this case, the RTD can be wired through the Rear
(Wiring) Compartment as shown in Figure 12.
ESC
OXYvisor
BOSx-FLEXSENSE
RIGID CONDUIT or Ex d GLANDS & CABLING
BOSx OXYGEN SENSOR
(SEE BOSx DATASHEET
FOR OPTIONS)
USER SUPPLIED RTD OR
TEMPERATURE TRANSMITTER
CERTIFIED FOR HAZARDOUS
AREA
EXAMPLE - GENERAL ARRANGEMENT
OF OXYVISOR (Zone I 2G) and BOSx SENSOR
WITH EXTERNAL RTD
ANALYZER FIBER
OPTIC SMA
CONNECTION IN
J-BOX
FIBER OPTIC SMA
TO SMA COUPLER
P/N: B3907-1122
BOSx OXYGEN
SENSOR FIBER
OPTIC SMA
CONNECTION IN
J-BOX
Oxygen
01/06/2017 10:55 AM
850.9 mBar
67.9°F
Err: 0
20.946
��
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