7221 8 channel measurement processor
€ - POA
Description
The 7200 series is designed to provide a simple reliable accurate and cost effective means of connecting plant sensors to standard computers for real time monitoring and data acquisition.
The 7221 Measurement processor includes 8 integral Analog Input Channels, individually configurable for Voltage, 4-20mA Current, Thermocouple, Strain, PRT, and Resistance measurement.
By using the units RS485 network port it can become part of a distributed network of up to 1000 channels spanning a distance of up to 1.2 Km.
Features
- Direct Sensor connection for DC voltages, thermocouples, 4-20mA converters, Strain Gauges, Resistance and PRT’s/RTD’s
- Integral network interface for distribution over 1.2 Km (4Km with extension unit)
- 16 bit measurement performance with 0.625µV sensitivity
- Solid State differential Inputs
- On board energisation
- In-built Cold Junction Compensation
- Serial Port isolated to 500 Vdc
- Local measurement speed up to 400 readings/sec, 1000/sec over the network
- Individual channel programming of sensor type and speed
- Multi Vendor Software Support
- On board battery backup for storing unit configurations
- Compact Rugged DIN rail mounted
Specifications
- No of Inputs: 8
- Sensor Types:DC Voltage, Thermocouples, 4-20 mA, Strain, Resistance, PRT/RTD
- Resolution:16 bits @ 40 rdgs/sec; 14 bits @ 400 rdgs/sec
- Input Impedance:30M ohms
- DC voltage ranges :10 V, 1.3V, 150mV, 20mV, Auto
- Resolutions :320 µV, 40 µV, 5 ?V, 0.625µV
- Accuracy: +/-0.02%rdg+0.01%range+1bit
- Resistance thermometers PT100
- Strain Gauges : Full 1/2 1/4 bridge
NOTE: 4/5/6 Wire PRT Only. Please contact us if 3-wire PRT is required.
Documentation
Most major SCADA packages support Datascan and an OPC Server is also available. Please contact us for more information.
- 7221 Datasheet [7221 Data Sheet]
- Datascan Brochure [Datascan Brochure]
- Datascan User Guide [Datascan User Guide]
- Temperature Spec [Temperature Specification]
- Voltage Spec [Voltage Specification]
