Inficon D-TEK Stratus Instrucciones De Operación página 7

INFICON
2
recommended before use in low temperature environments.
Specification table in accordance with EN 14624
3
to the size of the leak the detector is able to detect.
4
substituted.
SAE Applications
SAE standards J2791 (R-134a) and J2913 (R-1234yf) specify sensitivity to the
following leak sizes for the corresponding settings below. Super sensitivity is more
sensitive than what is required by SAE for leak checking in a clean environment (free
of background refrigerant). If leak checking in a contaminated environment (high
background refrigerant), switch to Super sensitivity.
R-134a leak rate (g/yr)
The following table lists some common under-hood chemicals and indicates whether
or not they will cause a false-trigger from D-TEK Stratus.
Chemical
074-708-P16B D-TEK Stratus Operating Manual
Use in temperatures below 0°C (32°F) should be limited. Extended warm-up time is
Minimum sensitivity, fixed (static)
Maximum sensitivity, fixed (static)
Minimum sensitivity, moving (dynamic)
Maximum sensitivity, moving (dynamic)
Minimum response/detection time
Zeroing time
Recovery time for 50 g/yr exposure
Minimum sensitivity in contaminated
environment
Calibration frequency
The upper leak detection limit is not specified by INFICON as there is no upper limit
As no 50 g/yr. leak standard was available during testing, a 32 g/yr leak standard was
14
7
4
Windshield washer solvent (methanol base)
®
Ford spot and stain remover
Ford rust penetrant and inhibitor
Ford gasket and trim adhesive
®
Permatex natural blue cleaner and degreaser
R134a
1 g/yr.
3
>50 g/yr.
1 g/yr.
3
>50 g/yr.
< 1 s
1–4 s
4
7.6 s
>2 g/yr.
Check annually with calibrated leak
standard
R-1234yf leak rate (g/yr)
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7
4
Specifications | 3
R1234yf
0.5 g/yr.
>50 g/yr.
1 g/yr.
>50 g/yr.
< 1 s
1–4 s
6.4 s
1 g/yr.
Sensitivity Setting
low
medium
high
False-Trigger
yes
yes
yes
yes
yes
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