Network Amplifier
Friday, 01 July 2005
The SPA Digital Network Amplifier is a microprocessor based unit which has been designed as a stand alone amplifier or to be part of a multi-drop networking system.

It will provide a complete interface between transducers with strain gauge bridge outputs and a computerised control/monitor- ing system, via an RS-232 output. It is configured with specific data strings to talk to B&G, OCKAM and computers.

Additionally, it will also drive up to six LOADSENSE digital type Displays, via an NMEA-0183 data stream.

Input Voltage12V DC
Power Consumption54mA Excluding load cell supply
Bridge Excitation5V DC
Bridge Resistance120 to 1000 Ohms
Span0.5 - 5.0mV/V at Full Range
Zero+/-20% of Full Range
Calibration100 kOhm 0.5% resistor - Switch operated
Accuracy+/-0.05% Linearity Error
Full Range+/-2000 or 4000 Selectable
Resolution1:4000
Decimal PointSelectable
RS-2324800 Baud Rate, 8 Data Bits,1 Stop Bit, N Parity
Max. Sample Rate3 per second
DisplayNMEA-0183 Data Stream
Operating Temp-10°C to +50°C
Temp. Coefficient<+/- 80 ppm /°C
Input Impedance30000 Ohms Differential
ProtectionIP65
CaseABS 160mm x 80mm x 50mm
ConnectionsInternal Screw Terminal Blocks
Weight375 Grams

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