Bacharach H-10G Specifications download pdf (Page 8)

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the tip at about one inch per second

along seams or joints suspected of

leaking. When the probe encoun-

ters a leak, both the audio pitch and

the flashing rate of the neon lamp

will increase. Both will continue to

respond at the faster rate as long as

the probe is held at the leak.

9. For detecting much larger or smaller

leaks, set the leak size switch to the

appropriate range LG or MED, readjust

the balance control for slow ticking

(1–3 ticks per second), and probe

for leaks as in the previous step. The

calibrate reference cannot be used to

calibrate these two ranges. The factory,

however, can supply leak standards

of any value required for verification of

capability to specific leak rates.

Sensor Life Extension

The H-10G provides a sensor adjust-

ment that substantially extends sensor

life. This procedure also provides for a

more accurately calibrated sensitivity

throughout the sensor life, and allows

compensation for abnormally high or low

line voltages (see Maintenance section).

The sensor heat control is a screw-

driver adjustment accessible through a

hole on the bottom of the case. As the

H-10G is used and the sensor ages, its

sensitivity will gradually decrease.

The overall sensitivity and calibra-

tion of the H-10G may be restored by

gradually adjusting the sensor heat

control clockwise until finally, with a fully

aged sensor, the control knob will be

turned clockwise to indicate 2 o’clock

(fig. 4). After that, when the sensor

fails to respond properly, replace the

sensor following the procedure in the

Maintenance section and readjust the

sensor heat control back to 7 o’clock

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