4/20mA Displacement transmitter

WK systems are vibration or position transmitters using Eddy current probes.

The 4/20 mA interface makes long distance wiring possible. They are directly supplied by the current loop. It reduces installation cost.

Two transmitter types are available:

•  WK-142-K for vibration
•  WK-142-T for position (GAP)

  Vibration transmitter WK-142-K

• Relative vibration transmission
• Accuracy: ±1.5 % of full scale
• Available measurement ranges:
• 0 to 100 µ m pp
• 0 to 125 µ m pp
• 0 to 200 µ m pp
• 0 to 250 µ m pp
• 0 to 400 µ m pp

  Position transmitter WK-142-T

• Relative position transmission
• Accuracy: ±1% of full scale
• Measurement range:
• -600 µ m to +600 µ m
• -25 mils to +25 mils

  Other features

• Defect current: < 3.6 mA
• Conditions of defect: open circuit, short circuit, out of linear range
• Dynamic output for analysis
• Target material: JIS SCM440 (AISI 4140) ,plane
• Linear range*: 1.4 mm (Gap : 0.3 to 1.7mm)
• Sensitivity*: 7.87 mV/µm ± 6.5% typ. (interchangeability included)
• Frequency range* : 5 Hz to 6,000 Hz (+0 dB, -3 dB)
• Operating temperature ( transmitter): 0 to 70°C
• Operating temperature (probe & cables): -34 to +177°C
• Operating temperature (connectors): -34 to +125°C
• Humidity: 95% no condensation
• Power supply loop: 12 to 35 Vdc
• System length: 5 m or 7 m
• Dimensions of transmitter: (L) 100 mm × (l) 74 mm × (h) 50 mm
• Weight: 530g
   

*25°C, supply 24 Vdc flat target diam 30 mm in AISI 4140