Endress+Hauser Waterpilot FMX21, Operating Instructions Manual

Page: 29 / 144

Waterpilot FMX21 Electrical connection
Hauser 29
6.2 Supply voltage
L
WARNING
Supply voltage might be connected!
Risk of electric shock and/or explosion!
‣
When using the measuring device in hazardous areas, installation must comply with
the corresponding national standards and regulations as well as the Safety Instructions.
‣
All explosion protection data are given in separate Ex documentation, which is
available upon request. The Ex documentation is supplied as standard with all devices
approved for use in explosion hazardous areas.
6.2.1 Pt100 (optional)
• 10.5 to 35 V (non-hazardous area)
• 10.5 to 30 V (hazardous area)
6.2.2 TMT72 temperature head transmitter (optional)
11.5 to 35 V
DC
6.3 Cable specifications
Hauser recommends using shielded, twisted-pair two-wire cables.
The probe cables are shielded for device versions with outer diameters of
22 mm (0.87 in) and 42 mm (1.65 in).
6.3.1 Pt100 (optional)
• Commercially available instrument cable
• Terminals, terminal box: 0.08 to 2.5 mm 2 (28 to 14 AWG)
6.3.2 TMT72 temperature head transmitter (optional)
• Commercially available instrument cable
• Terminals, terminal box: 0.08 to 2.5 mm 2 (28 to 14 AWG)
• Transmitter connection: max. 1.75 mm 2 (15 AWG)
6.4 Power consumption
6.4.1 Pt100 (optional)
• ≤ 0.805 W at 35 V
DC
(non-hazardous area)
• ≤ 0.690 W at 30 V
DC
(hazardous area)
6.4.2 TMT72 temperature head transmitter (optional)
≤ 0.805 W at 35 V
DC
6.5 Current consumption
6.5.1 Pt100 (optional)
Max. current consumption: ≤ 23 mA
Min. current consumption: ≥ 3.6 mA