High-precision Electrostatic SensorSK series

SK-050

Sensor head

SPECIFICATIONS

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Model

SK-050

Charge potential measurement

Measurement mode

High-precision mode, Wide-range mode

Reference distance

High-precision mode

25 mm

Wide-range mode

100 mm

Measuring distance

High-precision mode

5 to 50 mm

Wide-range mode

60 to 120 mm

Measuring range

High-precision mode

±2kV*1

Wide-range mode

±50kV*1

Measuring accuracy

High-precision mode

±10V

Wide-range mode

±100 V*2*3

Sampling cycle

Approx 1.4 ms

Temperature measurement

Measuring range

0 to +50°C

Measuring accuracy

±1°C*4

Display resolution

0.1°C

Sampling cycle

1 s

Humidity measurement

Measuring range

10 to 85% RH

Measuring accuracy

±5% RH*4

Display resolution

0.1% RH

Sampling cycle

1 s

Charge monitor function

Ion balance measuring mode

Ion balance measuring range

±1 kV*5

Measured voltage display resolution

±10 V*5*6

1 V*5

Environmental resistance

Ambient temperature

0 to +50 °C (No freezing or condensation)

Relative humidity

10 to 85 % RH (No condensation)

Material

Body case : PC, Metal parts : SUS, Cable : PVC

Weight

Approx. 35 g

*1 If the distance to the sensing target is shorter than the reference distance, even if the conditions are within the measurable range, measurement cannot be performed up to the upper limit of the measuring range.
*2 Within ±100 V when using high-precision mode; within ±1 kV when using wide-range mode. In other ranges, display value has an accuracy of ±10% (display value). Values are obtained from a mean of 256 measurements.
*3 Measuring accuracy is satisfied in the range of ±30 kV.
*4 25°C, 50% RH.
*5 OP-87934 is required.
*6 Within ±100 V. In other ranges, display value has an accuracy of ±10% (display value).

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