TPS model calibrated helium leak standard works equally well calibrating helium leak detectors that test under vacuum, and with helium leak detectors that sample from atmosphere utilizing a “sniffer probe”. This was accomplished by designing the TPS model with both an integral KF25 (NW25) vacuum fitting and a pin-point helium source that accepts and aligns most manufacturers “sniffer probes” with virtually no “dead volume” where helium can accumulate and cause inconsistent readings. The FEP permeation type leak element is not driven by differential pressure but helium partial pressure flows helium at virtually the same rate flowing into a vacuum or flowing into normal atmospheric conditions. Calibrated helium leak standards with shut-off valves and should not be used to calibrate a “Sniffer Type” leak detector.
Three point calibration with attached graph (Press. vs. leak rate)
Unbreakable FEP permeation type leak element
All welded stainless steel construction
Not susceptible to plugging.
This model is available with various sizes of DOT rated gas reservoirs, the reservoir size is usually dictated by the leak rate to insure an acceptable yearly depletion rate.
Cincinnati Test Systems utilizes the finest grade of FEP available to manufacture their FEP leak elements. The leak elements have been tested at temperatures ranging from 10°C to 40°C yielding a temperature coefficient of approximately 2.5%/°C with no anomalous behavior.
CAN THE CUSTOMER REFILL A LEAK STANDARD FROM A GAS SOURCE REGULATED TO LESS THAN 600PSIG. (AFFORDS POSSIBILITY OF A VARIABLE RATE MODE OR OPEN STYLE):
VOLUMETRIC FLOW UNITS:
atm-cc/s atm-cc/m atm-cc/hr scc/s scc/m scc/hr torr-l/s mbar-l/s pa-m3/s Other
GAS INLET FITTING. (NOT REQUIRED FOR LEAK STANDARD MODELS WITH GAS RESERVOIRS.):
1/8" Female NPT 1/8" Male NPT 1/4" Female NPT 1/4" Male NPT 1/4"Tube Compression Mini Conflat Flange 2_"Conflat Flange 1/4" OD Tube 1/2" OD Tube 1 1/8" OD Tube 1/4" Male VCR 1/4" Female VCR 1/2" Male VCR 1/2" Female VCR Other
GAS INLET FITTING (IF OTHER, PLEASE SPECIFY):
GAS OUTLET FITTING (NOT REQUIRED FOR "SNIFFER" TYPE APPLICATIONS. SPECIFY LEAK DETECTOR MANUFACTURER AND MODEL NUMBER UNDER OTHER.):
KF16 (NW16) KF25 (NW25) KF40 (NW40) KF50 (NW50) 1/8" Female NPT 1/8" Male NPT 1/4" Female NPT 1/4" Male NPT 1/4"Tube Compression Mini Conflat Flange 2_"Conflat Flange 1/4" OD Tube 1/2" OD Tube 1 1/8" OD Tube 1/4" Male VCR 1/4" Female VCR 1/2" Male VCR 1/2" Female VCR Other
GAS OUTLET FITTING (IF OTHER, PLEASE SPECIFY):
HE H2 SF6 N2 10%HE/90%N2 5%H2/95%N2 50%HE/90%N2 R134a C02 Air Other
GAS TYPE (IF OTHER, PLEASE SPECIFY):
x10-1 x10-2 x10-3 x10-4 x10-5 x10-6 x10-7 x10-8 x10-9 x10-10
TEST PRESSURE & UNITS :
PSIG PSIA mbar(A) mbar(G) bar(A) bar(G) Mpa(G) Mpa(A) kpa(G) kpa(A) pa(G) pa(A) mmHg torr Other
TEST PRESSURE & UNITS (IF APPLICABLE):
WHICH OF THE FOLLOWING BEST DESCRIBES YOUR INTENDED APPLICATION?:
The leak standard will be used flowing into vacuum The leak standard will be used flowing into atmosphere Other -- please select --
WHICH OF THE FOLLOWING BEST DESCRIBES YOUR INTENDED APPLICATION? (IF OTHER, PLEASE SPECIFY) :