(3) Open condensate traps and empty them.
NOTE: Condensate traps can contain storage/conveying product(s), make sure you take
suitable precautions.
(4) Close condensate traps.
(5) Three-way valves 20 and 21 to position I.
(6) Open shut-off cocks on the interstitial space.
6.4.3 Testing the probe
(1) If there are shut-off cocks on the interstitial space, close these.
(Not applicable when the probe is installed separately from the leak detector. Also applica-
ble for section (2) and section (6))
(2) Three-way valve 20 in position IV, thus aeration of the connecting line.
(3) Remove probe and check reaction in storage products or water.
(4) Establish optical and audible alarm signal on the leak detector. Press the "mute" button if
necessary.
(5) Clean / dry and insert the probe.
(6) Move three-way valve 20 to position I and open the shut-off cocks.
6.4.4 Checking the free passage of air in the interstitial space
(1) Connect the measuring gauge to three-way valve 21, then position III.
(2) For tanks and pipes according to Installation examples P-03, Q-03: Three way valve 20 to
position IV,
For pipes according to Installation examples P-01, P-02, Q-01, Q-02 and Q-04: Open the
test valve at the end of the interstitial space away from the leak detector. In the case of sev-
eral ducts of a pipe the stop valves of the interstitial spaces not integrated in the test can be
closed.
(3) Determine the drop in pressure on the measuring gauge. If there is no drop in pressure,
establish the cause and eliminate it.
(4) Three-way valve 20 to position I, or close test valve(s).
(5) Three-way valve 21 to position I.
(6) Remove measuring gauge.
6.4.5 Testing the switching values using the interstitial space
(1) Connect the measuring gauge to three-way valve 21 and three way valve 21 in position III.
(2) For tanks and pipes acc. to Installation examples P-03, Q-03: Aerate via three way valve
20 (position III)
For tanks and pipes acc. to Installation examples P-01, P-02, Q-01, Q-02 and Q-04: Open
the test valve at the end of the interstitial space away from the leak detector. In the case of
several ducts the stop valves of the interstitial spaces not integrated in the test can be
closed.
(3) Determine switching values "pump ON" and "alarm ON" (with optical and audible alarm
signal). Note values.
(4) Press the "mute" button if necessary.
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