Sheet #683u –Optional Accessories
Version 1.04a User guide ATEQ 6th series Page 4/6
3.2. CDF (LEAK/FLOW CALIBRATOR)
The ATEQ leak/Flow calibrator is a multiple range flow
meter intended for checking leak testing equipment and
particularly ATEQ instruments.
3.3. NEEDLE VALVE
Needle valves are used to verify the leakage limits. These valves
have an adjustable leak and depending on the model allow
adjustments of between a few cm3/h to several l/min.
These valves can be easily misadjusted and therefore require the
frequent use of some means of checking the setting (ex: Leak
calibrator ATEQ).
Note: It is strongly recommended that you do NOT leave a needle
valve permanently connected on a leak detection instrument with
automatic calibration every "n cycles".
4. ATEQ 3/2 VALVE (Y-VALVE)
The ATEQ valve and
mini valve are 2
positions, 3 ways
spring returned,
pressurized and leak-
tight valves. The valve
comes with either a
pneumatic or electric
pilot.
The choice of a leak tight valve is extremely important when installed in the leak test circuit.
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