Model

R9300

Combustible Gas Leak

Detector

INSTRUMENTS

INSTRUMENTS

Instruction

Manual

REED Instruments

1-877-849-2127 | [email protected] | www.reedinstruments.com

Table of Contents

Safety ...................................................................................................... 2-3

Features .......................................................................................................3

Instrument Description ................................................................................3

Specifications ..............................................................................................4

Operating Instructions .................................................................................5

Battery Replacement ...................................................................................6

Sensor Replacement ...................................................................................6

Safety

Before using this instrument, read all safety information carefully. In this manual the word “ WARNING ” is used to indicate conditions or actions that may pose physical hazards to the user. The word “ CAUTION ” is used to indicate conditions or actions that may damage this instrument.

If you are using your Combustible Gas Leak Detector as a result of a service call, chances are someone has either smelled a combustible gas leak or someone has reason to believe gas may be leaking. While your

Combustible Gas Leak Detector is designed to function without producing sparks or otherwise igniting the gases it detects, the environment you are responding to probably has no such safeguards. Most combustible gas leaks are noticed long before concentration levels build up to the point that explosion hazards exist.

If you feel an explosion hazard exists:

• Arrange for evacuation of people in the area

• Call proper authorities from a safe location

• Shut off gas source, if possible

• Ventilate enclosed areas if possible to do so without risk of ignition

• DO NOT switch on power in area in question

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INSTRUMENTS

As a matter of routine, ventilate the area you plan to work in. Ventilation will help ensure the gas does not accumulate in large volume where it can attain its Lower Explosive Limit (LEL).

Lower Explosive Limit (LEL): The point at which a combustible gas, when mixed with air, has developed the minimum concentration to combust when exposed to a source of ignition. The LEL is usually stated as a percentage of gas in air, as a fuel-air-ratio, or as parts-per-million (PPM).

Features

• Detects a wide range of combustible gases including; gasoline, propane, natural gas and fuel oil

• High sensitivity detects small leaks

• Designed for one-handed operation

• 16” (406mm) gooseneck for hard to reach areas

• User adjustable sensitivity wheel

• Alarm set at 10% LEL for methane

• Earphone jack for loud environments (earphones sold seperately)

• Tricolor visual indicator

• Audible (variable tick rate) and visual (LED) alarm indicators

• User replaceable sensor

Instrument Description

1. Sensor Tip Guard & Sensor (internal)

2. Gooseneck Probe

3. Alarm Light

4. Ready Light (Power-On)

5. Power ON/OFF Slide Switch

6. Earphone Jack

7. Tick Rate (Sensitivity) Adjustment

8. Probe Clip

9. Handle

10. Battery Cover

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INSTRUMENTS

Specifications

Detected Gases:

Sensitivity:

General Specifications

Sensor Type:

Alarm:

Alarm Limit:

Sensitivity Settings:

Warm-up Time:

Response Time:

Earphone Jack:

Power Supply:

Battery Life:

Product Certifications:

Probe Length:

Operating Temperature:

Storage Temperature:

Operating Humidity Range:

Dimensions:

Weight:

Optional Accessories:

Methane, Natural Gas, Benzene,

Ethane, Propane, Butane, Acetone,

Alcohol, Ammonia, Gasoline, Jet Fuel,

Industrial Solvents, Lacquer, Paint

Thinner, Naptha

50ppm (methane)

Heated semiconductor gas sensor

Audible (buzzer) and

Visual (LED indicator)

Set at 10% LEL for Methane

(Can be calibrated for other concentrations or gases up to 40% LEL)

Adjustable Wheel

Approx. 5 mins

Less than 2 seconds

Yes

3 C Batteries

Approx. 8 hours

CE

16” (406mm)

32 to 122°F (0 to 50°C)

14 to 140°F (-10 to 60°C)

10 to 90%

8.7 x 2.8 x 1.8” (221 x 72 x 46mm)

18.4oz (520g)

Replacement Sensor Tip (R9300-RS)

Soft Carrying Case (CA-05A)

Replacement Reference Leak Source

(LC-R01)

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INSTRUMENTS

Operating Instructions

Switch on the Combustible Gas Leak Detector by sliding the ON/OFF button and the READY light is glowing. The gas leak detector runs through a one-minute warm-up and self-zeroing sequence when it is first turned on in fresh air. The alarm of the instrument may be very loud without contact with any gas, that is caused the initial preset sensitivity.

Rate (Sensitivity) Adjustment

Each time the instrument is put into service, you should conduct a quick functional test. Adjust the tick rate to non-alarm level. Then, simply expose the sensor to a known leak, like a cigarette lighter, or pass the probe over a drop of combustible fluid. After the initial warm-up, the instrument can be used to detect combustible gases. When the sensor in the probe tip detects a combustible gas, the tick rate will increase and the instrument sounds a warbling tone while the ALARM light. As the concentration of gas increases, so does the tick rate.

If the situation calls for quiet operation, or if background noise makes it difficult to hear the built-in speaker, you can use an earphone. The jack is at the top of the instrument. Note that listening to the alarm or tick through the earphone is very loud.

If the READY light is off, the batteries are low. They should be replaced immediately. Low batteries will adversely affect the instrument’s reliability.

See battery replacement procedures.

Adjusting the Tick Rate (Sensitivity)

The tick rate tells you when the sensor (in the tip of the instrument) is getting close to a gas leak. You can control the tick rate using the rotary wheel in the center of the instrument.

• Move the wheel clockwise to increase the frequency

• Move the wheel counter-clockwise to decrease the frequency

A tick rate of 4 to 8 ticks per second, in fresh air, is typical. As the sensor comes near a combustible gas source, the tick rate increases. In order to isolate the source of a leak, you may need to move the wheel counter clockwise, decreasing the sensitivity, as the sensor moves closer.

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Battery Replacement

1. Before replacing the batteries make sure to turn off your instrument.

2. To remove the battery cover apply pressure and push away from the meter. Slide the cover out of the tracks.

3. Replace all three batteries with new ones.

4. Replace the battery cover by sliding it into place.

Sensor Replacement

Although the sensor is designed to offer many years of reliable service, it may become inoperable if it is submerged in liquid or otherwise physically damaged.

To replace sensor:

1. Turn the instrument off

2. Remove the upper tip guard by pressing straight up from the alignment notch that separates the two halves of the tip guard.

3. This is a sturdy component, but use caution bending its leads.

4. Pull the sensor straight up from its tip housing.

5. Replace the sensor, pressing it straight in.

6. Reassemble in reverse order.

For service on this or any other REED product or information on other

REED products, contact REED Instruments at [email protected].

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INSTRUMENTS