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6.2.4
Electrical Connection
6.2.4.1
Power Supply
Connect a suitable power supply (9-30Vdc, at least 100mA) to pins 1&5.
Figure 11 - Pin Outs for Power Supply & Data Output
6.2.4.2
Connecting to a Tan Delta OQDe
Connect the OQSxG2 to the left-hand connector. We recommend using a Tan Delta OQSxG2 to
OQDe cable (Cable SD
–
various lengths available). Align and slot in the 6-pin connector and
then tighten the connector screw-cap. Please refer to the OQDe section of the manual for
further information about OQDe setup and configuration.
6.2.4.3
Data output
You can use the output from Pins 5&6 to provide analog indication of the oil temperature and
condition on other, third party, data acquisition and control systems.
6.2.4.4
Using the Oil Condition analog output
Oil condition is output on Pin 3 and is linearly scaled from 4mA to 20mA. This can easily be
converted to the TDN or Loss Factor scale using the table at the Appendix (Section 14). A clean
oil should provide an output of about 8mA. For some common applications we recommend the
warning/alarm settings in the table below. Any value below 4mA indicates a fault.
Engine
(e.g. Diesel)
Gas Engine
Hydraulic
Compressor
Transmission
High Alarm
5.6mA
(1140 TDN)
5.6mA
(1140 TDN)
6.4mA
(1060 TDN)
6.7mA
(1050 TDN)
6mA
(1100 TDN)
High Warning
6.4mA
(1060 TDN)
6.4mA
(1060 TDN)
7mA
(1000 TDN)
7mA
(1000 TDN)
7mA
(1000 TDN)
Condition OK
Low Warning
13mA
(400 TDN)
9.4mA
(760 TDN)
9.4mA
(760 TDN)
10.5mA
(650 TDN)
10mA
(700 TDN)
Low Alarm
14mA
(300 TDN)
10.4mA
(660 TDN)
10.4mA
(660 TDN)
11mA
(600 TDN)
12mA
(500 TDN)
Figure 12 - Generic Warnings / Alarms (Inc 4-20mA )
Summary of Contents for OQSExISG2
Page 1: ...UG OQSxG2 23 0025 OIL QUALITY SENSOR ASSOCIATED ACCESSORIES USER GUIDE...
Page 2: ......
Page 5: ...Page 3 Page Intentionally Blank...
Page 37: ...Page 35 Figure 19 Connection to other Tan Delta and 3rd Party Products Interfaces...
Page 38: ...Page 36 Figure 20 ExOQSxG2 Ex Sensor Installation Drawing Rev 2 STAMPED...
Page 42: ...Page 40 8 Display Express...
