OQSx-G2-HAZ Oil Quality Sensor (M18)

Zone 2 certified to ATEX, IECEx, UKEX & Class 1 Division 2 US/C allowing real-time oil condition analysis for hazardous area applications.
Manufacturer: Tan Delta Systems


  • 1 x OQSx-G2 HAZ Sensor
  • 1 x OQSx-G2 HAZ Sensor Quick Start Guide
  • 1 x USB Stick


Cables are not supplied with this product. These are supplied separately – see cable section on our web site. For configuration you will require 1 x Cable-X.

Products specifications
Attribute nameAttribute value
Product Information
NameEx Gen II Oil Quality Sensor
Product NumberOQSx-G2-HAZ-M18
MaterialStainless Steel AISI304
Dimensions118mm x 46mm (L x W)
Connection32mm AF Hex Collar
Torque25N m
Available Threads
Thread - SealM18 - Dowty Type
Supply+10-28.8 V DC
Consumption0.4w Average
Data Output / Input
Digital Output RS485, CANBus
Protocols SupportedModbus, CANOpen and J1939
Oil Quality Detection Parameters
OutputTan Delta Number (TDN) Oil Temperature (°C or °F)
Accuracy 0.01%
Sensitivity/Accuracy 01%, +
ElementsAll wear and contamination
Calibrated Temperature -20°C to +120°C
Operating Temperature-40°C to +120°C
Fluid Temperature -40°C to +120 °C
Fluid Pressure up to 70 bar (1015 psi)
Storage Temperature -55°C to +150°C
Standards & Certification
Water & Dust IP68
Shock & Vibration BS EN 60068-2-30 (Test Db - Cyc.Hum.), BS EN 60068-2-6 (Test Fc - Sine Vib.), BS EN 60068-2-27 (Test Ea - Mech. Shock)
EMCEN 61000-6-4:2007 (Generic Emissions Standard for Industrial Environments), EN 61000-6-2:2005 (Generic Immunity Standard for Industrial Environments)
ConformityCE Marked RoHS Compliant