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SGA-A-and-SGA-D

Product catalog summary

Introduction
The SGA/A & SGA/D are strain gauge/load cell amplifiers and signal conditioners designed for stability and flexibility. They provide a 10V excitation for up to four 350R strain bridges and offer adjustable transducer sensitivity from 0.1 to 30 mV/V. Users can select from various analogue outputs, including ±10V, ±5V, 0-10V, 0-5V, 0-20mA, and 4-20mA, with simultaneous voltage and current output capabilities. The units can be powered by 230/110VAC or 18-24Vdc and are compatible with PLCs, display units, and other industrial instrumentation.

Features
- Very stable bridge excitation
- Selectable sensitivity and high-frequency filtering
- User-selectable analogue outputs
- IP65 ABS field case with cable glands
- Surface mount PCB
- Wide range filtering from 1Hz to 5kHz
- Switch selectable offset ±70% FS
- Regulated 10V@110mA excitation
- 3-year manufacturer’s warranty
- Full CE approval

Specifications
- Power Supply: 110/230Vac or 18-24Vdc
- Bridge Excitation: 350R Strain Gauge
- Adjustable Gain and Offset
- Output Load: Voltage and Current options
- Bandwidth: 1Hz to 5kHz
- Operating Temperature: -10°C to 50°C
- Storage Temperature: -20°C to 70°C
- Humidity: Up to 95%

Controls and Connections
The device features field screw terminals for connections and an ABS case sealed to IP65 standards. It includes gain and offset pots, coarse gain and offset switches, filter cut-off switches, and an output mode switch.

Compliance and Standards
The SGA/A & SGA/D comply with safety and EMC directives, including BS EN 61010-1:2001 and BS EN 61326 standards for emissions and immunity.

Order Codes
- SGA/A: 110/230v ac and/or 18-24v dc powered
- SGA/D: 18-24v dc powered
- Optional plug-in PCB for SGA/D with isolated DC supply 9-36V

Conclusion
The SGA/A & SGA/D are versatile and cost-effective solutions for industrial applications requiring precise strain gauge/load cell amplification and signal conditioning. They are designed, manufactured, and supported in the UK, ensuring high quality and reliability.

Catalog excerpts

3 Mercury House, Callewa Park, Aldermaston, Berkshire, RG7 8PN Strain Gauge/Load Cell Amplifier/Signal Conditioner ■ Very Stable Bridge Excitation ■ High Frequency Filtering ■ User Selectable Analogue Outputs High Specification: ■ IP65 ABS field case with cable glands ■ Wide range filtering 1 Hz to 5kHz ■ Switch selectable offset ±70% FS ■ 3 year manufacturer's warranty Flexible Solution: Simultaneous voltage and current output 10v Excitation for up to 4 x 350R Strain Bridges 230/110VAC or 18-24Vdc power supply Adjustable transducer sensitivity 0.1 to 30 mV/V Direct connection to a PLC, a display unit, industrial User-selectable analogue output ±10V, ±5V, 0-10V, 0-5V, 0-20mA, instrumentation, chart recorder, or a P (with A/D card) 4-20mA An LVDT version of this unit is also available. All parameters configurable by DIL switch An ideal product to stock Clear and concise operating instructions supplied Cost Effective Attractive discounts on quantity orders Fast delivery times Power supply (SGA/A):- (110/230Vac) 50 - 60Hz Power supply IS 12/24 - Isolated Power supply current DC :- (depends on loading) Bridge excitation 350R Strain Gauge Bridge resistance Bridge sensitivity (Switchable) Gain adjustment (Pot - fine adj.) Offset adjustment (Pot - fine adj.) Offset adjustment (Switchable - coarse adj) Output load (Voltage output) Output load (Current output) Bandwidth (No filter and > 2mV/V) - 3d B point Filter cut-off (Switchable ranges) - 3 d B point Zero temperature coefficient (@2.5mV/V) Span temperature coefficient Gain stability -1st 1000 Hours Gain stability - 2nd 1000 Hours Output load stability gain (0 -100%) Output load stability offset (0 -100%) Power supply rejection gain (0 -100%) Power supply rejection offset (0 -100%) Operating temperature range Storage temperature range *N.B. 18V max at full load FR= Full Range

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Output options set by on-board switch ±10V, ±5V, 0-10V, 0-5V, 0-20mA, 4-20mA Connections Field screw terminals - 2.5mm² rising clamp Enclosure ABS case 160 x 80 x 55 sealed to IP65 fitted with 3 off cable glands Controls Gain pot Offset pot Coarse gain switches Coarse offset switches Filter cut-off switches Output mode switch Order Codes 110/230v ac and/or 18-24v dc powered 18-24v dc powered Optional plug-in PCB for SGA/D – Isolated DC supply 9-36V CE & Environmental Safety/Low Voltage Directive 73/23/EEC amended by 93/68/EEC BS EN 61010-1:2001, IEC 1010-1-1990 2004/108/EC Basic Standard BS EN...

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SGA-A-and-SGA-D

SGA-A-and-SGA-D

Catalog excerpts

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