Specification

Specifications table for model GA-311
ItemPerformance characteristics
Applicable Sensor HeadGH-□SE
Current Consumption25 mA or less
Supply Voltage 12 to 24 V DC ± 10 % Ripple P-P 10 % or less
OutputNPN open-collector transistor
・Maximum sink current: 100 mA (50 mA, if five, or more, amplifiers are connected in cascade.)
・Applied voltage: 30 V DC or less (between sensing output and 0 V)
・Residual voltage: 1 V or less [at 100 mA (at 50 mA, if five, or more, amplifiers are connected in cascade) sink current.]
Output: Output Operation Switchable either Normally open or Normally closed
Max. Response Frequency3.3 kHz
Output: Short-Circuit ProtectionIncorporated
Operation Indicator Orange LED (lights up when the output is ON)
Disconnection Alarm IndicatorRed LED (lights up when the sensor head cable is disconnected or misconnected)
Sensitivity Adjuster18-turn potentiometer
Ambient Temperature-10 to +60 ℃ +14 to +140 ℉ (If 4 to 7 units are connected in cascade : -10 to +50 ℃ +14 to +122 ℉, if 8 to 16 units are connected in cascade: -10 to +45 ℃ +14 to +113 ℉)
(No dew condensation or icing allowed),
Storage: -20 to +70 ℃ -4 to +158 ℉
Ambient Humidity35 to 85 % RH, Storage: 35 to 85 % RH
Voltage Withstandability1,000 V AC for one min. between all supply terminals connected together and enclosure
Insulation Resistance20 MΩ, or more, with 250 V DC megger between all supply terminals connected together and enclosure
Vibration Resistance10 to 150 Hz frequency, 0.75 mm 0.030 in double amplitude in X, Y and Z directions for two hours each
Shock Resistance100 m/s2 acceleration (10 G approx.) in X, Y and Z directions three times each
Temperature Characteristics Within ±5 %
MaterialEnclosure: Heat-resistant ABS,
Cover: Polycarbonate
Connecting MethodConnector
(Note:The cable for amplifier connection is not supplied as an accessory. Make sure to use the optional quick-connection cable given below.
Main cable (3-core): CN-73-C1 (cable length 1 m 3.281 ft), CN-73-C2 (cable length 2 m 6.562 ft), CN-73-C5 (cable length 5 m 16.404 ft)
Sub cable (1-core): CN-71-C1 (cable length 1 m 3.281 ft), CN-71-C2 (cable length 2 m 6.562 ft), CN-71-C5 (cable length 5 m 16.404 ft))
Cable LengthTotal length up to 100 m 328.084 ft (if 5 to 8 units are connected in cascade: 50 m 164.042 ft,
if 9 to 16 units are connected in cascade: 20 m 65.617 ft) is possible with 0.3 mm2, or more, cable.
Weight (Typ.)Net weight: 15 g approx.,
Gross weight: 40 g approx.

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