Before Use; Prepare Measuring Device - Dräger HP NO Series Instructions For Use Manual

Before Use

Prepare measuring device

NOTICE
Only use a device if it is clean.
Clean connections (blow out with oil-free and grease-free air).
Clean the measuring device. It must be free of particles and dust.
Unscrew the protective cap and
connect the compressed air
supply with the connection (1).
Do not use a tool for pressure
reducers. Only use your hands
to make the connection. If
necessary, use adapters: see
"Technical data" on page 35.
Connect the measuring device
(2) to the pressure reducer
(plug connection).
High pressure system:
The pressure reducer is
preconfigured to 8.5 bars.
Low pressure system:
In cases of alternating primary
pressures from 3 to 15 bars,
the pressure point (3 bars)
must be readjusted on the
pressure reducer's handwheel.
Check the pressure gauge
setting.
Visit: www.thesafetyequipmentstore.com or email besafe@thesafetyequipmentstore.com for sales and service.
24
1
2
Insert the bubble test hose in
the corresponding test connec-
tion (3) of the measuring de-
vice.
Dip the other end of the bubble
test hose (4) in a container full
of water.
Slowly open the compressed
air supply valve and clean the
compressed air system (dis-
perse compressed air).
In case of regularly maintained
systems:
2 to 3 minutes.
For other systems:
5 to 6 minutes.
Count the rising bubbles:
Severe build up of bubbles on CO
connection. In case of little or no bubble build up, clean the device, see
"Cleaning" on page 32.
Severe build up of bubbles (uncountable) on oil and H
In case of little or no bubble build up: clean the device, see "Cleaning" on
page 32.
Close valve.
Oil CO CO H O
2 2
3
4
, CO, nitrous gases, H S and SO
2 2
O test connection.
2
test
2