TANDELTA OQSExISG2, User Manual

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7.5.1 Set Up
To connect the OQSExISG2 to the configuration cable, connect the wires as shown in the
illustration below:
The sensor should be set up using CADS in the same manner as outlined in section 6.1.1.2 of this
manual.
7.6 Installation
7.6.1 Precautions
Please read these instructions before installing the oil quality sensor. The sensor has been
designed to be robust, however it is liable to be damaged by mistreatment. The following must
be noted:
The sensor must be powered using an EN6950 compliant power supply, or through a
suitable EX barrier which is earthed to the Equipotential Bonding System and from a power
supply with negligible output series inductance.
Any additional interface circuits monitoring the serial outputs or the 4-20mA analogue
outputs must be similarly EN6950 compliant or through a similar EX barrier.
The sensor body must be directly screwed into the earthed body of the machine on which
it is used, or earthed pipework and fittings in the lubrication system for such machine.
Insulating bushes or adaptors must not be used
. Ensure the sensor case is earthed using
the earthing lug on the sensor connected directly and at a single point to the Equipotential
Bonding System.
Working Voltage (peak value) must not exceed 28.8V d.c., or 24V d.c. + 20%.
Install the sensor into the equipment before attempting electrical/wiring connections.
To avoid thread damage, do not use with taper fittings.
Tighten with a correctly adjusted size spanner (32mm) and do not over tighten.
Do not attempt to screw or tighten the sensor using the body. Always use the “Hex” head
with the correct size spanner (32mm).
Do not twist the cable relative to the sensor head.
Keep away from sharp edges which may cut into the cable.
Do not bend the cable, minimum bend radius = 66.3mm.
Where possible, keep the cable away from sources of heat, (such as an engine block), and
electrical interfaces.
Figure 15 - Setting Up the OQSExISG2 for Configuration