Carrier Type Instrumentation Amplifier WGA-120A

• Strong against inverter noise.
  
• Output of voltage or current is switchable

The WGA-120A is a Carrier Type Instrumentation Amplifier, which is suitable for connecting a strain-gage transducer to measure loads, pressure, torques or displacements.

Models

[WGA-120A-00] Power Codes: DC Power Supply: 10.5 to 15 VDC Power Consumption: 3.5 W or less Balance Adjustment: Manual [WGA-120A-01] Power Codes: 100 VAC Power Supply: 90 to 110 VAC Power Consumption: 6.5 VA or less Balance Adjustment: Manual [WGA-120A-02] Power Codes: 200 VAC Power Supply: 180 to 220 VAC, Power Consumption: 6.5 VA or less Balance Adjustment: Manual [WGA-120A-03] Power Codes: 240 VAC Power Supply: 216 to 264 VAC Power Consumption: 6.5 VA or less Balance Adjustment: Manual [WGA-120A-10] Power Codes: DC Power Supply: 10.5 to 15 VDC Power Consumption: 3.5 W or less Balance Adjustment: Automatic [WGA-120A-11] Power Codes: 100 VAC Power Supply: 90 to 110 VAC Power Consumption: 6.5 VA or less Balance Adjustment: Automatic [WGA-120A-12] Power Codes: 200 VAC Power Supply: 180 to 220 VAC Power Consumption: 6.5 VA or less Balance Adjustment: Automatic [WGA-120A-13] Power Codes: 240 VAC Power Supply: 216 to 264 VAC Power Consumption: 6.5 VA or less Balance Adjustment: Automatic

Specifications

Channels	1
Applicable Transducers	Strain-gage transducers
Compatible Bridge Resistance	87.5 to 1000 Ω (Up to four 350 Ω transducers connected in parallel. Bridge excitation is limited to 2 or 1 Vrms for transducers with bridge resistance less than 175 Ω.)
Bridge Excitation	5, 2, 1 Vrms, square wave (Switchable by changing internal jumper connection)
Input Range	[Sensitivity Switch ×2000] Bridge Excitation(Vrms):1 Input Range (mV/V)Sensitivity Adjustment×1 to ×0.4:±5 to ±12.5 Bridge Excitation(Vrms):2 Input Range (mV/V)Sensitivity Adjustment×1 to ×0.4:±2.5 to ±6.25 Bridge Excitation(Vrms):5 Input Range (mV/V)Sensitivity Adjustment×1 to ×0.4:±1 to ±2.5 [Sensitivity Switch ×4000] Bridge Excitation(Vrms):1 Input Range (mV/V)Sensitivity Adjustment×1 to ×0.4:±2.5 to ±6.25 Bridge Excitation(Vrms):2 Input Range (mV/V)Sensitivity Adjustment×1 to ×0.4:±0.5 to ±1.25 Bridge Excitation(Vrms):5 Input Range (mV/V)Sensitivity Adjustment×1 to ×0.4:±0.5 to ±1.25 [Sensitivity Switch ×10000] Bridge Excitation(Vrms):1 Input Range (mV/V)Sensitivity Adjustment×1 to ×0.4:±1 to ±2.5 Bridge Excitation(Vrms):2 Input Range (mV/V)Sensitivity Adjustment×1 to ×0.4:±2.5 to ±6.25 Bridge Excitation(Vrms):5 Input Range (mV/V)Sensitivity Adjustment×1 to ×0.4:±0.2 to ±0.5
Rated Output	Voltage: ±10 V (Load resistance: 2 k Ω or more) Current: 4 to 20 mA (Load resistance: 500 Ω or less, voltage output: 0 to 10 V) (Switchable by changing internal jumper connection)
Zero Adjustment Range	Within ±1.5 mV/V, manual balance or auto balance by selecting model.
Sensitivity Adjustment Range	×2000, ×4000, ×10000 (Switchable by changing internal jumper connection) Adjustable between ×0.4 and ×1.0 by the trimmer.
Calibration	Calibration by the parallel resistance method 0.25 mV/V or 0.05 mV/V at 350 Ω bridge resistance (Switchable by changing internal jumper connection)
Frequency Response	10, 30, 100, or 500 Hz (Switchable by changing internal jumper connection)
Nonlinearity	Within ±0.1%FS
SN Ratio	53dB p-p or more [Conditions] Sensitive: ×10000, ×0.5 (Adjustment by the trimmer) Frequency response: 500 Hz Bridge resistance: 120 Ω Bridge excitation: 2 Vrms
Stability	Temperature Zero point: Within ±0.2μVRTI /°C Sensitivity: Within ±0.05%/°C Time Zero point: Within ±0.5μVRTI /8h Sensitivity: Within ±0.2%/8h [Conditions] Sensitive: ×10000, ×1.0 (Adjustment by the trimmer) Bridge resistance: 120 Ω Bridge excitation: 2 Vrms
Operating Temperature	-10 to 50°C
Operating Humidity	20 to 85% (Non-condensing)
Power Supply	[WGA-120A-00] Power Codes: DC Power Supply: 10.5 to 15 VDC Power Consumption: 3.5 W or less Balance Adjustment: Manual [WGA-120A-01] Power Codes: 100 VAC Power Supply: 90 to 110 VAC Power Consumption: 6.5 VA or less Balance Adjustment: Manual [WGA-120A-02] Power Codes: 200 VAC Power Supply: 180 to 220 VAC, Power Consumption: 6.5 VA or less Balance Adjustment: Manual [WGA-120A-03] Power Codes: 240 VAC Power Supply: 216 to 264 VAC Power Consumption: 6.5 VA or less Balance Adjustment: Manual [WGA-120A-10] Power Codes: DC Power Supply: 10.5 to 15 VDC Power Consumption: 3.5 W or less Balance Adjustment: Automatic (Also possible with external contact) [WGA-120A-11] Power Codes: 100 VAC Power Supply: 90 to 110 VAC Power Consumption: 6.5 VA or less Balance Adjustment: Automatic (Also possible with external contact) [WGA-120A-12] Power Codes: 200 VAC Power Supply: 180 to 220 VAC Power Consumption: 6.5 VA or less Balance Adjustment: Automatic (Also possible with external contact) [WGA-120A-13] Power Codes: 240 VAC Power Supply: 216 to 264 VAC Power Consumption: 6.5 VA or less Balance Adjustment: Automatic (Also possible with external contact)
Dimensions	44 W × 90 H ×80 D mm (Excluding protrusions)
Weight	DC power supply model: Approx. 350g AC power supply model: Approx. 450g
Panel-cut Dimensions	45×93.4 mm

Standard Accessories	Instruction manual
Optional Accessories	AC power cable P-23 (For 100 VAC) P-28 (For 200/240 VAC) DIN rail mounting fixture EDP-70

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