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Operational test using diluting water
The following parameters serve as a
guideline for the operator, although other
or supplementary measures may be
needed depending on the installation site:
Acceptance test certificate
15.
Check the storage tank and storage tank base for cracks or other
damage and leak-tightness.
16.
Check all adhesion points for leak-tightness, all pipework, threaded
connectors and pipe connections on the metering vessel.
17.
Check all threaded connectors for leak-tightness:
on the stopcocks
n
on the stopcock
n
on the diluting water line
n
on the active carbon filter
n
on the metering vessel, as well as the float plugs of the level
n
switches
18.
Check the housing of the active carbon filter for leak-tightness.
19.
Check the vapour recovery line for leak-tightness at the connectors,
the metering tank and the suction line of the transfer pump as well
as the test tank connection.
20.
The pressure must not have fallen by more than 10 mbar after a test
duration of 5 minutes has expired.
21.
Remove the blind cap on the active carbon filter and hook up the
exhaust air line again.
1.
Close the bottom stopcock on the metering vessel and connect the
diluting water line.
2.
Fill the dosing tank through the diluting water line up to the max‐
imum level (140 l or 250 l marking) depending on the size of the
tank.
3.
Close the stopcock on the diluting water line.
4.
Completely fill the test tank (empty hydrazine storage tank) with
rinsing water, e.g. condensate or deionised water.
5.
Check the operation of the transfer pump and also check that the
transfer pump is switched off by the level switch in the metering
vessel:
Switch on the transfer pump and fill the metering vessel until the
level switch is triggered and the transfer pump stops. Simultane‐
ously check the parts, such as the transfer pump, suction line, the
line to the metering vessel and the metering vessel itself for leak-
tightness. Finally close the stopcock once more.
6.
Functional test of the metering pump for metering: Switch on the
metering pump and bleed the liquid end (see "Operating instructions
for solenoid metering pump Beta
check the metering pump, metering line and the injection valve and
its fastening point for leaks. Finally switch off the metering pump.
7.
Replace the test tank with a storage tank, once the Micro-Matic cou‐
pling has been removed. When doing so and prior to placing the
coupling on the storage tank, ensure that the suction line and the
vapour recovery line are fastened to the coupling with hose clips.
Ensure the line connectors are securely seated and check for leaks.
8.
After commissioning the hydrazine metering system, carry out one
more complete visual inspection to ensure ultimate safety.
The accepting personnel (technical expert or authorised technical
personnel) must verify acceptance of the hydrazine metering system
for the operator by means of the "Acceptance test certificate" (see
appendix for "Acceptance test certificate" template).
Start up
®
BT4 and BT5"). While doing this,
21
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