Sub MkIIIF
User Manual
Int. Approved
Document ref: ASF3-800-08
November 2018
Page 69 of 79
Copyright © 2009 Analox Ltd. All Rights Reserved.
Commercial in Confidence
12.3
Fitting Replacement Oxygen Sensor to Rem1 (Or Rem3)
The oxygen sensor is a consumable item with an expected life of up to 3 years in an air
environment at standard temperature and pressure. Use at pressure or at elevated oxygen levels
will shorten the life of the sensor. For instance a sensor exposed to 100% oxygen at atmospheric
pressure would be expected to expire within approximately 6 months. Similarly a sensor exposed
to air at 10 Bar, would be expected to expire within approximately 3 months. These examples are
fairly untypical of expected usage. Normally, hyperbaric customers will opt to change out their
sensors at either 1 or 2 year intervals, depending on their usage patterns.
To replace the sensor, first ensure that you have the correct replacement oxygen sensor for your
system. Refer Section 12.1
Read the safety instructions regarding oxygen sensors (Section 13.1) and ensure that neither the
old nor the new oxygen sensor shows any sign of electrolyte leakage. If the old sensor is leaking,
use protective clothing whilst removing and disposing of the sensor. If the new sensor is leaking,
return it to Analox.
Replacing the oxygen sensor will require access to the remote sensor enclosure. Ensure the
sensor is switched off before removing the cover.
Identify the oxygen sensor already fitted within the enclosure (refer Photos in Section 12.8). Use
a small screwdriver to remove the red and black wires that connect the oxygen sensor to terminals
marked O2-1 (+VE and
–
VE). After disconnecting the wiring, unscrew the green locking ring
retaining the oxygen sensor in place. Remove the oxygen sensor from the enclosure.
Mount the replacement sensor and secure in place with its locking ring. Note the o-ring fitted to
the oxygen sensor provides a seal to prevent water ingress to the enclosure.
Connect the sensors wires to the O2-1 terminals. Wires should be fitted to terminals as shown in
the table below.
Wire Colour
Function
Terminal
Red
Positive output from
sensor
O2-1 +VE
Black
Negative output from
sensor
O2-1 -VE
Ensure the wiring for the sensor is neat and tidy, and does not become trapped when refitting the
enclosure cover.
After fitting a new oxygen sensor, always calibrate the new sensor (refer Section 10.4).
Содержание Sub Mk III F
Страница 2: ......