The VK-P Series TSI transducer is a high-grade eddy-current type non-contacting
transducer for shaft position and differential expansion measurement of rotating
machinery required for TSI. It offers the necessary low temperature drift and stability for
shaft position measurement.
In addition, it can be used in an explosive gas atmosphere due to its intrinsically safe
construction.
Main Functions
1. System composition
Consists of sensor, extension cable and driver.
Available in system lengths of 5m and 9m to cover the total distance
between sensor and driver.
2. Various types of measured range
The VK-P Series Transducer is offered in four measured ranges of 3mm,
6mm, 13.5mm and 26mm.
Suitable for long-range measurement as required for TSI.
3. Intrinsic safety explosion-proof construction
RIIS equivalent to IEC standard
Ex ia IIC T5 (VK-302P)
FM, BASEEFA
4. Environment
Extensive operating temperature range (?40 to +125°C)
Not affected by lubricating oil mist or dust. (Exclude connector)
Also available for use in low-density corrosive gas atmosphere
(For ditails, contact us). (Not available for rain water at out door use)
Specifications
VK-302P
Vibration Transducer
VK-602P
Thrust Position Transducer
VK-143P
Diff. Expansion Transducer
VK-263P
Diff. Expansion Transducer
Calibrated material JIS SCM 440 (AISI 4140 Steel) flat surface
Linear range* 3mm 6mm 13.5mm 26mm
Sensitivity* 5V/mm 2.5V/mm 0.8V/mm 0.4V/mm
Sensitivity error* Within ±4%
Scale factor error*
Within ±4% of 0.5V/l00μm
(if calibrated as a system)
Within ±10% of 0.5V/l00μm
(when interchangeability
errors are included)
Linearity*
Within ±30μm
(if calibrated as a system)
Within ±45μm
(when interchangeability
errors are included)
Within ±90μm
(if calibrated as a system)
Within ±120μm
(when interchangeability
errors are included)
Within ±200μm
(if calibrated as a system)
Within ±270μm
(when interchangeability
errors are included)
Within ±250μm
(if calibrated as a system)
Within ±400μm
(when interchangeability
errors are included)
Operating
temperature
range
Sensor ?40 to +125°C (?40 to +257°F)
Extention cable ?40 to +125°C (?40 to +257°F)
Driver ?38 to +80°C (?36 to +176°F)
Operating humidity range 30 to 95% RH (noncoudensing, non-submenged)
Power supply ?24VDC±10%
Max. output voltage Approx. ?22VDC (At ?24VDC power supply voltage)
Current consumption
(at 10k? load resistance)
Max. ?16mA Max. ?13mA Max. ?15mA Max. ?13mA
Frequency response DC to 10kHz (?3dB) DC to 3kHz (?3dB)
Output impedance 50?
Sensor tip diameter Approx. ?10mm Approx. ?18mm Approx. ?25mm Approx. ?50mm
Cable tip diameter Max. approx. ?6mn
Connector tip diameter Max. approx. ?9.5mm (Gold plated SMA connector)
System cable length Sensor cable length + Extension cable length = 5m ±10% or 9m ±10%