User manual

standards of any value required for verification of capability to
specific leak rates.
Sensor Life Extension
The H-10G provides a sensor adjustment 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 screwdriver
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.
fig. 3
The overall sensitivity and calibration 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. 3). 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 (fig. 3) and perform calibration.
When making sensor adjustments, move the sensor heat control
in small increments, either up or down, as appropriate. After each
adjustment wait about 30 seconds for the sensor temperature to
stabilize, then check the sensitivity as described in steps 5, 6, and
7, in the Operating Instructions section.
Maintenance
The H-10G is designed for long life with very little maintenance. A
kit that contains the necessary expendable replacement parts is
supplied with each unit. Instructions for replacing these items are
described in the following sections.
Replacing the Filter
To protect the air pump from damage of foreign particles and
moisture, replace the filter (fig. 2) often. With moderate use (15–
30 minutes per day), once a month should be sufficient. To
replace the filter, pick out the old filter with a pin or tweezers. The
fine screen will remain in the tip. Insert the new filter in the tip and
make sure it is firmly seated against the fine screen.
Replacing the Sensor
The sensor is a plug-in unit that can be discarded when
expended. It needs replacing when the H-10G no longer responds
to the calibrate reference bottle, even with the sensor heat control
fully clockwise. Make sure that the calibrate reference bottle
contains fluid.
1. Unplug the AC power cord and open the sensor cover (fig.1).
The sensor is now visible.
2. Allow the sensor to cool before touching it (approximately 15
minutes).
3. Unplug and discard the sensor.
4. Insert a new sensor and close the cover.
5. Set the sensor heat control (fig. 3) to its 7 o’clock position.
6. Place the unit in operation and check its sensitivity by following
the procedure in steps 5, 6, and 7 in the Operating Instructions
section. Gradually adjust the sensor heat control more clockwise
until the proper response is obtained. Each time the sensor heat
control is adjusted, make only small adjustments either up or
down as appropriate. After each adjustment: wait about 30
seconds for the sensor temperature to stabilize; adjust balance
knob to 1–3 ticks; and then re-check the sensitivity.
Troubleshooting
**Solution number corresponds to Cause number**
Problem Responds continuously on small leak size positions.
Balance control will not stop response.
Cause 1 Excessive sensitivity 2 Atmosphere contaminated with
excessive halogen
Solution 1 Reset sensor heat control more counterclockwise. 2
Ventilate area, switch to larger leak size.
Problem Excessive response to calibrate Reference
Cause High line voltage
Solution Reset sensor heat control more counterclockwise
Problem Audio normal, but probe lamp does not flash
Cause Burned out or damages probe lamp
Solution Replace probe
Problem Responds continuously on all leak size positions.
Balance control will not stop response.
Cause 1 Dirt in sensor 2 Short circuit in sensor
Solution 1 Remove sensor and blow out with clean air (5 psi) to
remove dirt. If unsuccessful, replace sensor. 2 Replace sensor
Specifications
Product Sensitivity (moving probe) (Movement not to exceed 2
in/sec, not greater than 0.25 inches from leak.)
Switch Position LG MD SM
R134a 5.0 1.0 0.5
R12 3.0 0.5 0.1
Product Sensitivity (stationary probe) (Probe directly on leak
source, no movement.)
Switch Position LG MD SM
R134a 5.0 0.5 0.1
R12 3.0 0.1 .05
Power Supply ±10% (100, 120, 220, 240 volts) 50/60 Hz 20
watts, in accordance with rating plate.
Response Time Approx. 1 second
Reference Leak Approx. 0.5 oz/yr R134a. Approx. 6 months life,
refillable with R11.
Warm-up Time Approx. 2 minutes
Temperature Operating 0°C to 45°C (32°F to 113°F) Storage
60°C (140°F) max.
Dimensions 8.7 x 5.5 x 1.4 inches
(22 x 14 x 7.5 cm)
Weight 3.2 pounds (1.4kg)
Repair Information
Should it become necessary to repair your H-10G, please contact
Central States Consulting, Inc. Units should be carefully packed
to prevent shipping damage and shipped prepaid.
Warranty
Send units under warranty and a copy of the purchase receipt to
Central States Consulting, Inc. for repairs. Please include your
company name, telephone number including area code, and a
contact name.
Non-Warranty
Units that are no longer under warranty will be repaired to factory
specifications for a nominal fee. Please include your company
name, telephone number including area code, and a contact
name.
Limited Warranty
The purchaser is warranted that this leak detector will be free of
defects in material and workmanship for 5 years from date of
purchase. This warranty does not cover sensors, reference leaks,
filters, airflow balls, lamps, or probe tips. Damages caused by the
user will not be covered. If any defects are discovered during the
warranty period, Central States Consulting, Inc. will repair or
replace the unit at their option.
Central States Consulting, Inc.
Your Partner In Quality
8461 Standifer Gap Road
Chattanooga, TN 37421
[phone]/[phone]
www.centralstatesconsulting.com
[e-mail]
Note: For best sensor life, avoid excessive sensitivity and
excessive clockwise setting.
WARNING! Personal Injury Hazard Sensor surface temperature
may reach 390°F (200°C) during operation, and may cause a
burn if not allowed to cool.
The foregoing limited warranty is exclusive and in lieu of all other
warranties, whether written or implied, and no warranty of merchantability
or fitness for purpose will apply.