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SGA

Analogue Load Cell Amplifier

OUTPUT
4-20mA, 0-5V, 0-10V, ±10V

POWER SUPPLY
110/230VAC, 18-24VDC, 9-36VDC

RATING
IP67

The SGA amplifier is a flexible, pure analogue device that is simple to use and cost effective.


With 10V excitation for up to four 350Ω strain bridges, adjustable 0.1 to 30mV/V transducer sensitivity and many user selectable analogue outputs (±10V, ±5V, 0-10V, 0-5V, 0-20mA, 4-20mA, simultaneous voltage and current output) it proves to be a very flexible amplifier. 


There are three power options - 230/110VAC (SGA/A), 18-24VDC (SGA/D) or 12VDC (IS12-24 option).

Technical Information View User Manual Download Data Sheet Get a Quote
Black SGA strain gauge amplifier made by Mantracourt Electronics

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Top view of the SGA load cell amplifier from Procter & Chester Measurements

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Side on view of the SGA strain gauge amplifier on a grey background

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Typical Specification

PARAMETER MINIMUM TYPICAL MAXIMUM UNITS
SGA/A Power Supply (50-60Hz) 99/198 110/230 126/253 VAC
SGA/D Power Supply 18 - 24 VDC(1)
SGA/D Isolated Power Supply (IS12/24)Optional 9 - 36 VDC
Maximum Absorption (Depends on Load) 50 90 200 mA
Bridge Excitation (10V Range) 9.75 10 10.25 V
Bridge Excitation (5V Range) 4.85 5 5.15 V
Bridge Resistance 85 - - Ω
Bridge Sensitivity 0.06 - 30 mV/V
Gain Adjustment (Potentiometer Fine Adjustment) 0.06 - 1.0 mV/V(2)
Offset Adjustment (Potentiometer Fine Adjustment -1.25 - +1.25 %FR
Offset Adjustment (Switchable Coarse Adjustment) ±1.25 - ±80 %FR
Output Load (Voltage Output) - - 2 mA
Output Load (Current Output) 0 - 500 Ω
Bandwidth (No Filter + >2mV/V) 3dB Point DC - 6000 Hz
Filter Cut-Off (Switchable Ranges) 3dB Point 1 - 5000 Hz
Zero Temperature Coefficient (At 2.5mV/V) - 0.002 - %FR/ºC at 2.5mV/V FR
Span Temperature Coefficient - 0.007 - %FR/ºC
Linearity - 0.03 - %FR
Gain Stability (1st 1000 Hours) - 0.2 - %FR
Gain Stability (2nd 1000 Hours) - 0.1 - %FR
90 Day Offset Stability - 3.3 - µV
Output Load Stability (Gain 0-100%) - - 0.01 %FR
Output Load Stability (Offset 0-100%) - - 0.01 %FR
Power Supply Rejection (Gain 0-100%) - - 0.01 %FR
Power Supply Rejection (Offset 0-100%) - - 0.01 %FR

Environmental

PARAMETER VALUE
Storage Temperature -20 to + 70°C
Operating Temperature -10 to +50°C
Relative Humidity 95% maximum non-condensing.
CE Environmental Approval European EMC Directive 2004/108/EC, Low Voltage Directive 2006/95/EC

Useful Information

  • Connections: Field screw terminals – 2.5mm2 rising clamp.
  • Controls: Gain potentiometer, coarse gain switches, coarse offset switches, filter cut-off switches, output mode switch.

Outline Dimensions (mm)

Outline dimensions for the SGA analogue load cell amplifier.

Ordering Codes

CODE DESCRIPTION
SGA/A 110/230V AC and/or 18-24V DC powered.
SGA/D 18-24V DC powered.
IS12/24 Optional plug-in PCB for SGA/D – Isolated DC supply 9-36V.
D4 DIN rail mount for cased SGA.
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Rapid Turnaround

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12 Month Warranty