PT Turbomolecular Pump Systems Calibration Systems - Granzow

Accessories
Delayed Venting Unit
The delayed venting unit serves the
purpose of venting vacuum systems
with a delay in that it bridges power
failures.
The unit is equipped with rechargeable
batteries. Any unwanted venting of the
turbomolecular pump can thus be
reliably prevented in the event of short
power blackouts.
Both normally open valves (power
failure venting valves) and normally
closed valves (venting valves) may be
connected.
The unit is equally suited for benchtop
use and rack mounting.
Delayed venting unit
The present operating condition is
showed by different displays and
controls:
- “Delay Time”
Displays the entered delay time
(when mains powered) and the delay
time counting to 0 (in case of
power failure).
- “Venting Time”
Displays the entered venting time
(when mains powered and during
delay time in case of power failure)
and, after elapsed delay time, the
venting time counting to 0.
- LED display for “battery status”
- “loading”
battery is being charged
- “empty”
battery is flat or defective
- “ok”
battery is in working order
- LED “POWER”
the unit is mains powered
Advantages to the User
- Adjustable venting time for power
failure venting valve:
0 to 999 seconds
- Adjustable venting time for venting
valve:
0 to 999 seconds
- Automatic driving of failure venting
valve and venting valve in case of
short power failures
- Manual venting
- Remote controlled venting
C10 24 Oerlikon Leybold Vacuum Full Line Catalog