Ultra High-Speed, Sensing Ionizers

SJ-H series

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Bar Type Main Unit, Silicone Model 2040 mm SJ-H204C

SJ-H204C - Bar Type Main Unit, Silicone Model 2040 mm

*Please note that accessories depicted in the image are for illustrative purposes only and may not be included with the product.

  • CE Marking
  • CSA






Ion generation method

Corona discharge method


Shockless resistive coupling type

Voltage application method/applied voltage

Pulse AC method, ±7000 V

Ion balance control method

Dual I.C.C. method

Ion balance

±30 V*1*2

Operating distance

50 to 2000 mm 1.97" to 78.74"

Control input

NPN open collector or contact point signal without voltage

Control output

NPN photo relay, Maximum 100 mA max. (40 V or less)

Major functions

Condition alarm, ion level alarm, alarm output

Air purge connection port

Rc 1/8

Air purge supplied pressure

0.5 MPa or less*3

Effective length

2,040 mm 80.31"*4

No. ofelectrodes


Static elimination bar length

2,000 mm 78.74"


Power voltage

24 VDC to 36 VDC ±10%

Current consumption

500 mA (at 24 V), 350 mA (at 36 V)

Overvoltage category


Pollution degree


Environmental resistance

Ambient temperature

0 to +40°C 32 to 104°F

Relative humidity

35 to 85 % RH (No condensation)


Electrode probe


Main unit



Static elimination bar

2,000 g 70.55 oz

*1 Measured under the following conditions.
0.3 m/s 1.3'/s downflow, Installation distance: 300 mm 11.81" (22 Hz)/600 mm 23.62" (10 Hz)/1500 mm 59.06" (1 Hz), Operating ambient temperature: 0 to +40°C 32 to 104°F, Operating ambient humidity: 35 to 65% RH
*2 Contact KEYENCE for SJ-HC type.
*3 Contact KEYENCE when using the air purge function with intermittent air supply.
*4 Effective length is for static elimination range when installation distance is 50 mm 1.97".

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