High-precision Electrostatic SensorSK series

SK-1000

Amplifier unit Main Unit

SPECIFICATIONS

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Model

SK-1000

Type

DIN rail mounting

Main unit/expansion unit

Main unit

Display

Display resolution

0.001 kV

Display range

±99.999 kV to 99 kV (4-level selection available)

Analogue voltage output

±5 V, 1 to 5 V, 0 to 5 V, output impedance 100 Ω*1

Analogue current output

4 to 20 mA, maximum load resistance 350 Ω*1

Control input

Zero-shift input

Non-voltage input*2

Timing input

Reset input

Bank input

Control output

Judgement output

Open collector output (NPN/PNP switching, N.O./N.C. switching)*3

Alarm output

Open collector output (NPN/PNP switching, N.C.)*3

Power supply

Power supply voltage

10 to 30 VDC, including 10% ripple (P-P)*4

Power consumption

1650 mW or below (55 mA or below with 30 V) (excluding load current of each output)*5

Environmental resistance

Operating temperature range

0 to +50°C 32 to 122°F(no freezing or condensation)

Operating ambient humidity

10 to 85% RH (no condensation)

Material

Body case and front cover : PC , Key top : POM , Cable : PVC

Weight

Approx 150 g (including accessories)

*1 ±5 V, 1 to 5 V, 0 to 5 V, or 4 to 20 mA selected for use.
*2 Inputs are assigned to the four external input lines. Non-voltage input rating : ON voltage 2 V or lower, OFF current 0.02 mA or lower. Voltage input rating : maximum input rating is 30 V, ON voltage 7.5 V or higher, OFF current 0.05 mA or below.
*3 NPN open collector output rating : maximum 50 mA/ch (20 mA/ch when expansion units are added) 30 V or below, residual voltage 1 V or below (1.5 V or below when adding 6 or more expansion units, including main unit). PNP open collector output rating : maximum 50 mA/ch (20 mA/ch when expansion units are added) below power supply voltage, residual voltage 2 V or below (2.5 V or below when adding 6 or more expansion units, including main unit).
*4 Use 20 to 30 V as power supply voltage when 6 or more expansion units, including main unit, are to be used.
*5 When connecting 8 units for DL connection, maximum power is consumption 11.3 W.

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