English (GB)
22
Analog output (AO)
Current sourcing capability only.
Voltage signal:
• Range: 0-10 VDC.
• Minimum load between AO and GND: 1 k
Ω
.
• 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 (max-point coverage).
Screened cable: 0.5 - 1.5 mm
2
/ 28-16 AWG.
Maximum cable length: 500 m.
Pt100/1000 inputs (PT)
Temperature range:
• Minimum -30 °C (88/882
Ω
).
• M180 °C (168/1685
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 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 %/+ 5 %.
• Maximum current: 50 mADC (sourcing only).
• Overload protection: Yes.
+24 V:
• Output voltage: 24 VDC - 5 %/+ 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.
28. Other technical data
EMC (electromagnetic compatibility)
According to EN 61000-6-2:2005 and 61000-6-3:2007.
Residential areas, unlimited distribution, corresponding to CISPR
11, class B, group 1.
Industrial areas, unlimited distribution, corresponding to CISPR
11, class A, group 1.
Contact Grundfos for further information.
Enclosure class
Standard: IP55 (IEC 34-5).
Insulation class
F (IEC 85).
Ambient temperature
• During operation: 0 to +40 °C.
• During storage or transport: -40 to +60 °C.
29. Sound pressure level
29.1 Hydro Multi-E with single-phase pumps
29.2 Hydro Multi-E with three-phase pumps
30. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest Grundfos company
or service workshop.
Subject to alterations.
Motor size
[kW]
Number of pumps in
booster system
Sound pressure
level
[dB(A)]
2
3
0.37 - 1.1
●
60
●
63
1.5
●
67
●
69
Motor size
[kW]
Number of pumps in
booster system
Sound pressure
level
[dB(A)]
2
3
1.5
●
67
●
69
2.2
●
67
●
69
3.0
●
71
●
73
4.0
●
71
●
73
5.5
●
71
●
73
7.5
●
77
●
79
11
●
77
●
79
