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Meggitt Sensing Systems, the makers of Wilcoxon Research vibration sensors, offers six Class I Division 2 (Zone 2) accelerometers. In addition to the vibration sensors, MSS offers three compatible cable-connector assemblies suitable for installation in a Class I Division 2 (Zone 2) environment.

The six sensors which received the Class I Division 2 (Zone 2) certification all have a sensitivity of 100 mV/g, and a tight +5% sensitivity tolerance, commonly called general purpose industrial accelerometers.

• The standard top exit model is the 786A-D2.
• The standard side exit model is the 787A-D2, which is also available with a metric M8 mounting stud, model 787A-M8-D2.
• The 780A-D2 is a compact sensor ideal for portable data collection.
• The integral cable model is the 786F-D2.
• The 786T-D2 is a dual output model that senses both vibration and temperature.

Three compatible connector-cable assemblies, suitable for Class I Division 2 (Zone 2) environments, are also offered. Each cable connector can be lock wired to prevent it from inadvertently backing off the sensor.

• The R6D2-J9T2A mates a MILC-C-5015 style 2-pin connector with a twisted pair, Teflon® jacketed cable for harsh, 200°C industrial environments.
• The R6D2-J10 mates a MIL-C-5015 2-pin connector with a twisted pair cable; the cable has an Enviroprene jacket, suited to 125°C industrial environments.
• The 786T-D2 sensor.is compatible with the R6GD2-J9T3A, a three pin connector and three wire cable with Teflon® jacket.

Industries that commonly have Class I Division 2 (Zone 2) hazardous areas are oil and gas, chemical processing, mining, steel, petrochemical processing, and pharmaceuticals.

CSA certified the six sensors to be rated for use in Class I Division 2, Groups A, B, C, D, E, F, G environments. Kema approved the sensors for ATEX operation in Class I Zone 2 AEx na IIC T4. Class I Division 2 (Zone 2) certification is not available for cables, however the R6D2-J9T2A, R6D2-J10, and R6GD2-J9T3A are deemed suitable for installation in hazardous areas. The final installation certification of the cables is determined by the governing authority.

To see all of the Wilcoxon Research hazardous area sensors from Meggitt Sensing Systems, visit http://www.wilcoxon.com/vi_intrinsic.cfm. To learn more about Wilcoxon Research, visit www.wilcoxon.com, call 800-WILCOXON, or email wilcoxon@meggitt.com.