HRD 92 S.C
PAGE | 11
7.4
ADJUSTING THE SENSITIVITY AND TYPE OF GAS
•
ADJUSTING THE SENSITIVITY :
using the
Sensitivity
Inverter
>
UP position
« x1 »
Normal sensitivity.
Estimated reading of the value of the leak on the graduated ramp
>
CENTRAL position
« HI »
Sensitivity 3 times stronger
Reading on the graduated ramp 0.3, 0.6, 1, 1.5, 3 g/year
>
BOTTOM position
« LO »
Sensitivity 3 times lower for locating large leaks
Reading on the graduated ramp 3, 6, 9, 15, 30 g/year
•
ADJUSTING THE GAS TYPE :
using the
Gas
Inverter
>
« HFC »
for R22, R134a, R404a, R407c, and mixtures.
(For the R410a use the HF0 position)
>
« HFO »
for R 1.2.3.4ze & 1.2.3.4ye and mixtures.
>
« HC »
for R600 & R290.
>
For the tracer mixture H2 / N2
- Put the inverter
Gas
on
« H2 / N2 »
and sensitivity
inverter on
« HI »
. If sensitivity is too large, pass on the position
« 1 »
or
« LO »
.
7.5
LIGHT « S » SATURATION / CONTAMINATION
•
This light will be ON during the warm-up time of the detector and will then light OFF or
stay very tiny ON.
•
If the light is on, the atmosphere of the room is contaminated and it is desirable to limit
the maximum duration of use of the detector to avoid accelerated weakness of the sensor
sensitivity.
•
If the light flash when detecting a leak. Pull off the sniffing pipe from the leak point and
wait for the necessary degassing time of the detector until the “S” light is OFF
.
7
6
EN
