Fresenius Medical Care 4008 4/09.03 (TM) 2-19
2.1.4 Notes – Checking the electrical safety
● Test 4008 E, 4008 H
1. Protective earth resistance measuring points
5
3
2
1
4
6
7
8
9
4 Upper rear panel (screw)
5 Heat sink (power supply unit)
6 Monitor rear panel (plate)
7 Power supply plate
8 Heater rod housing (hydraulic unit open)
9 Dialyzer line ports
(hydraulic unit open / earthing screw)
Legend
1 Monitor rear panel (ports housing)
2 Hydraulic unit rear panel (plate on
the push-on blade inside)
Caution: The grounding cable
must be connected.
3 Ground stud for potential equaliza-
tion
2. Use a meter (e.g. SECUTEST 0701) to check the leakage current.