Grundfos RADIOMODULE 2G4 - Dimensions and Weights

• Short-circuit protection: Yes.
Current signal:
• Ranges: 0-20 and 4-20 mADC.
• Maximum load between AO and GND: 500 Ω.
• Open-circuit protection: Yes.
Tolerance: 0-4 % of full scale, maximum-point coverage.
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Maximum cable length: 500 m.
Pt100 or Pt1000 inputs (Pt)
Temperature range:
• Minimum -50 °C (80 Ω/803 Ω).
• Maximum 204 °C (177 Ω/1773 Ω).
Measurement tolerance: ±1.5 °C
Measurement resolution: less than 0.3 °C.
Automatic range detection (Pt100 or Pt1000): Yes.
Sensor fault alarm: Yes.
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Use Pt100 for short wires.
Use Pt1000 for long wires.
LiqTec sensor inputs
Use a Grundfos LiqTec sensor only.
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Grundfos Digital Sensor input and output (GDS)
Use Grundfos Digital Sensor only.
Power supplies, +5 V, +24 V
+5 V
• Output voltage: 5 VDC - 5 % to + 5 %.
• Maximum current: 50 mADC, sourcing only.
• Overload protection: Yes.
+24 V
• Output voltage: 24 VDC - 5 % to + 5 %.
• Maximum current: 60 mADC, sourcing only.
• Overload protection: Yes.
Digital outputs, relays
Potential-free changeover contacts.
Minimum contact load when in use: 5 VDC, 10 mA.
Screened cable: 0.5 - 2.5 mm
2
/ 28-12 AWG.
Maximum cable length: 500 m.
Bus input
Grundfos GENIbus protocol, RS-485.
Screened 3-core cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Maximum cable length: 500 m.
8.4
Dimensions and weights
Motor with free-hole flange (FF), B5
H
L
W
TM069878
65
English (GB)