Office Automation Sensor Assemblies

Below are some examples of SEMITEC OA sensor solutions.

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No.1 Printer / Copier Sensor (NC Sensor)

Parameters Value Conditions
Measurement center 180℃±3℃ Blackbody temp.: 180℃; sensor body temp.: 100℃
Roller diameter: 40 mm; distance: 5 mm
Responsivity 1.3s±0.5s Time required to reach 63.2% of temperature difference between blackbody and sensor body.
Operating temp. range -10℃〜-150℃
Measuring temp. range -20℃〜260℃
Thermistor resistance value 7kΩ±3% Rated zero-power resistance at 180℃
Thermistor B-value 3370K±1% B-value determined by rated zero-power resistance at 25℃ and 85℃

No.2 Printer / Copier Sensor (Thermopile Module)

Features: A non contact IR sensor module capable of accurate and easy temperature measurement.

Power supply voltage  Output voltage    Operating Temperature range Temperature measurement range
 3.2V~6V 0.2V~2.8V -25℃~100℃   -20℃~250℃


Connector pinout

 1 Sensor output VTobj (V)
 2  GND
 3  Power supply voltage: Vdd
 4  Thermistor output: Vtamb (V)

Thermal time constant: approx. 46 ms

No.3 Printer / Copier Sensor (HF-N Sensor)

Features: A sensor capable of non contact measurement with conventional thermistor-based method.

Rated zero-power resistance (R180) B-value (B25/85) Operating Temperature range
 7kΩ±5% at 180℃  3370K±3%  -20℃~230℃(sensor head)

No.4 Printer / Copier Sensor (FS Sensor)

Features: A low friction type sensor capable of minimizing damage to the fuser roller.

Rated zero-power resistance (R180) B-value (B25/85) Operating Temperature range
 7kΩ±5% at 180℃  3370K±3%  -20℃~230℃

Thermal Time Constant: approx. 1.0 sec. (roller)
Breakdown Voltage: AC 600V 1 sec.
Insulation Resistance: DC 500V 100MΩ+

No.5 printer / Copier Sensor (HF-H Sensor)

Features: A high speed type temperature sensor that can instantly respond to temperature changes of the fuser roller.

Rated zero-power resistance (R180) B-value (B25/85) Operating Temperature range
 7kΩ±5% at 180℃  3370K±3%  -20℃~230℃

Thermal Time Constant: approx. 1.0 sec. (roller)
Breakdown Voltage: AC 600V 1 sec.
Insulation Resistance: DC 500V 100MΩ+

No.6 Printer / Copier Sensor (HF-L Sensor)

Features: A space saving type of temperature sensor with lead wires parallel to the fuser roller.

Rated zero-power resistance (R180) B-value (B25/85) Operating Temperature range
 7kΩ±5% at 180℃  3370K±3%  -20℃~230℃

Thermal Time Constant: approx. 1.0 sec. (roller)
Breakdown Voltage: AC 600V 1 sec.
Insulation Resistance: DC 500V 100MΩ+