Dostmann Electronic GD 383 User Manual

CONTENT Page

1. GENERAL INFORMATION ------------------ 2

2. FEATURES ---------------------------------------- 2

3. SPECIFICATION --------------------------------- 3

4. OPERATION GUIDE --------------------------- 4

5. PART & CONTROL------------------------------ 5

6. GETTING STARTED---------------------------- 7

6-1 Installing Batteries---------------------------- 7
6-2 Automatic Circuit/Reset Feature--------- 8
6-3 Feature Sensitivity Adjustment---------- 9

7. OPERATING PROCEDURE----------------- 9

8. REPLACING NEW SENSOR-------------- 11

9. CLEANING --------------------------------------- 12

COMBUSTIBLE GAS DETECTOR

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1. GENERAL INFORMATION

Thank you for purchasing Combustible Leak Detector.
Read though the instruction manual before operation
for correct and safe usage. Please store and retain
this instruction manual for future reference.

2. FEATURES

Combustible Leakage Detector is extremely useful as
a general purpose tool in any environment where
gasoline, propane, natural gas or fuel oil is used. This
unit uses a newly developed semi-conductor sensor
which is extremely sensitive to variety of general
used combustible.

§ Microprocessor Control with advanced digital
signal processing.

§ Multi color visual display.

§ High-Low leak sensitivity selector.

§ Low battery indication.

§ Semiconductor gas sensor.

§ Detection of combustible gas.

§ Carrying case included.

§ 15.5” (40 CM) flexible stainless probe.

§ Reference Leak source included.

§ Ambient concentration reset.

Application:

§ Detect leaks in automobile exhaust and fuel
system.

§ Detect leaks in liquid or gas fired heating systems.

§ Safety checks at propane filling stations.

COMBUSTIBLE GAS DETECTOR

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§ Search for arson residue (detects accelerants).

§ Detect fuel in marine bilges.

§ Check manholes/sewers for safety.

§ Check for cracked heat exchangers.

§ Detect solvent residue.

3. SPECIFICATION

Detectable Gases:

Gasoline, propane, natural gas or fuel oil.

Alarm Method:

Buzzer, Tricolor LED bar Indicator .

Sensitivity: Variable, as low as 5ppm(gasoline)
Power Usage:

4 AA size (6V DC) Alkaline Batteries

Snake Tube length: 40cm (15.5”)
Dimension / Weight:

173 x 66 x 56 mm (approximately 400g)

Accessories:

Alkaline batteries (AA) X 4 pcs
User manual, leak check bottle, carry case.

Battery Life:

Approximately 40 hours normal use.

Auto power OFF: 10 minutes
Warm-Up Time: Approximately 90 seconds
Operating Temperature & Humidity:

0 ~40 °C, < 80% RH

COMBUSTIBLE GAS DETECTOR

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Storage Temperature & Humidity:

-10 ~60 °C, < 70% RH

Altitude: < 2000M (6500’)

4. OPERATION GUIDE

(1) The combustible leak detector unit is not equipped
with anti-explosive designs and measures. Do not use
this unit in the environment with the burnable gases.
(2) There are some environmental conditions that
might cause error reading:

§ Pollutant places.

§ Large temperature variation.

§ Places with high wind velocity.

§ Organic solvent, adhesive vapor, fuel gas and

vesicant will cause abnormal response from the
sensor. Try to avoid the environment involved with
this substance.

§ Places fill with too much to combustible Gas.

Note: Although the unit will respond to high levels of
carbon monoxide, it should not be used as a detector
for this gas in normal room or working atmospheres.
It is used to pinpoint a leak as described in the
operating instruction.