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Flow Measurement
Flow ranges
0 to 20 ml/min, 0 to 200 ml/min, 0 to 2 litres/min, 0 to 6 litres/min,
0 to 10 litres/min, 0 to 20 litres/min, 0 to 30 litres/min, 0 to 100 litres/min,
0 to 200 litres/min, 0 to 2000 litres/min, 0 to 5000 litres/min
Accuracy @ 20°C
10% to 100% range: < ± (1% reading + 1 digit)
0 to 10% range: < ± (0.1% range + 1 digit)
For dual range instruments, “range” refers to the selected range.
Resolution: 4 digit display
Temperature Coefficients: Zero: Automatic Zero facility, Span: < 0.1% per °C
Long Term Drift (span) < 1% per year
Pressure Measurement
Pressure Ranges:
50 mbar vacuum, 300 mbar vacuum, 800 mbar vacuum
2 mbar, 20 mbar, 50 mbar, 200 mbar, 400 mbar
1 bar, 4 bar, 6 bar, 8 bar, 14 bar
Accuracy @ 20°C
10% to 100% range: < ± (1% reading + 1 digit)
0 to 10% range: < ± (0.1% range + 1 digit)
Resolution: 4 digit display
Temperature Coefficients
Zero: < 0.05% per °C
Span: < 0.1% per °C
Long Term Drift (span): < 1% per year
Electrical
Supply Voltage: 24 VDC ± 10% < 500 mA
Electrical connections
Power: 2 way detachable screw terminal
Outputs: detachable screw terminal
Inputs: detachable screw terminal
RS232: 9 pin D plug
RS485: 5 pin detachable screw terminal
Control Inputs: Up to 12 Opto-isolated, active high or active low. 5 VDC to 24 VDC into 10 K
Control Outputs: Up to 24 Active High transistor output (PNP). 12 VDC to 45 VDC, 120 mA (per channel)
Pneumatic
Media Compatibility: Clean dry air or non-corrosive gas
Gas Temperature at LFE: 0 – 50°C
Relative Humidity of Gas: 0 – 95% Non-condensing
Air Supply Pressure: Maximum 10 bar gauge, Minimum 5 bar gauge
Regulator Supply Pressure: Maximum 16 bar gauge
Pneumatic Connections
Air supply – 6 mm push-in tube connector
Regulator supply and output – 8 mm push-in tube connector
Pneumatic pilot outputs - 4 mm push-in tube connectors
Pressure sense port - 4 mm push-on tube connectors
Laminar Flow Element ports – Size dependent on range:
20, 200 ml/min: 6/4mm Push-on tube fitting
2, 6, 10, 20, 30 litres/min: 12mm Plain Spigot
100 litres/min: 22mm Plain Spigot
200 litres/min: 28mm Plain Spigot
2000, 5000 litres/min: 76mm i/d 184mm o/d flange.
LFE Operating pressure: Maximum static pressure 4 bar.
Construction
Enclosure: Steel construction enclosure with paint finish. Suitable for 19” 3U rack mounting.
Dimensions – Rack Case: 267 x 133 x 296 mm (W x H x D) (excluding LFE)
Dimensions – Bench Case: 232 x 147 x 296 mm (W x H x D) (excluding LFE)
Weight: 5 kg (excluding LFE)
