Page 181
STAT
IM
2000/2000S Service Guide
96-108639 Rev 3.0
8. Water Pumps, Reservoir, and Compressor
STATIM 2000/2000S/2000 G4 Service Guide
5. A dielectric strength test (Hi-Pot) and a protective bonding impedance test (ground continuity)
should be performed on the STAT
IM
unit at this stage.
NOTE: These tests must be performed on the STATIM again once the work is completed and
the cover has been returned to the unit.
6. Make sure there is sufficient steam-process distilled water in the reservoir and activate the
pump using the control box for 5 seconds to ensure that the pump is functioning.
7. Run a sterilization cycle and observe all fittings and tubes for leaks. Check LCD read-outs for
messages indicating cycle status.
Reservoir and Water Sensors
STAT
IM
2000 / 2000S reservoirs have been installed in three different configurations with regard to
water sensors. The reservoir moulding however is the same in all cases.
On early units up to 1995 with revision 3.x/4.x controller boards the
reservoir contained a black cylindrical float sensor, which only detects
the level of water in the reservoir.
On units from 1995 to 2007 with revision 2.x/5.x/6.x controller boards,
the reservoir contained a water quality sensor with two exposed
probes (2), which detect the water level AND quality in the reservoir
by conductivity.
On units from 2007 onwards with revision 7.x controller boards,
the reservoir contained a water quality sensor with two exposed probes
that ONLY detects the water quality in the reservoir by conductivity,
AND a float assembly that ONLY detects the water level (3).
Note: The three sensor types are not interchangeable between
units with the different controller boards.
Removing the reservoir
To remove the reservoir (1), proceed as follows (see Figure 18):
The unit should be disconnected from the electricity supply before performing this procedure
as the unit needs to be turned on its side to detach the reservoir securing screw.
Figure 17
Water quality
sensor
Water level sensor (3)
(cut away)
(cut away)
(seen from exterior)
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