Ametek OXYvisor - Sensor Connection Options; BOS Sensor with Integral RTD Via J-Box; Figure 15 - BOS Sensor with Integral RTD through Junction Box

32
Installation, Operation and Maintenance Manual
OXYvisor Optical Oxygen Analyzer
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
Conguration - Product Model Number, Table 3.
Integral RTD’s are located within the BOS sensor and may not give the desired accuracy in
certain applications. Avoid using integral RTD’s in applications with large temperature changes
over short periods of time or in streams with low heat capacity (e.g. dry gas streams).
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). The BOS sensor types, FlexSense and SafeTap,
each have an option for an integral RTD that may be selected for convenience depending on the application
details and requirements. 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 15, 16 & 17 show
some common arrangements for the OXYvisor and BOS sensors.
4.10.1 BOS Sensor with Integral RTD via J-Box
4.10 Sensor Connecon Opons
Figure 15 - BOS Sensor With Integral RTD Through Junction Box
USEFUL INFORMATION
USEFUL INFORMATION
When the BOS sensor is specied with an integral RTD, and the OXYvisor model is selected with Agency
Approval “2”, the RTD can also be connected through the J-Box via a Molex connector. See Figure 15.
ESC




OXYvisor
BOS-FLEXSENSE
Oxygen
01/06/2017 10:55 AM
850.9 mBar
67.9°F
Err: 0
20.946

% O2
��
EXAMPLE - GENERAL ARRANGEMENT
OF OXYVISOR (General Purpose / Class I
Div. 2 / or Zone II 3G) and BOS SENSOR
WITH INTEGRAL RTD
ANALYZER RTD
MOLEX CONNECTION
IN J-BOX
BOS OXYGEN SENSOR
RTD MOLEX CONNECTION
IN J-BOX
BOS OXYGEN SENSOR
WITH INTEGRAL RTD
(SEE BOS DATA
SHEET FOR OPTIONS)
ANALYZER FIBER
OPTIC SMA
CONNECTION IN
J-BOX
FIBER OPTIC SMA
TO SMA COUPLER
P/N: B3907-1122
BOS OXYGEN
SENSOR FIBER
OPTIC SMA
CONNECTION IN
J-BOX
Section 4
Installation