REED C-383 User manual
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Model C-383
Combustible Gas Detector
Instruction
Manual
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
reedinstruments
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2
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Table of Contents
Safety ............................................................................................ 3
Features......................................................................................... 4
Specications................................................................................ 4
Instrument Description .................................................................. 5
Operating Instructions................................................................6-8
Power-Up & Reset ...................................................................... 6
Testing the Unit ........................................................................... 6
Measuring................................................................................6-7
Ambient Concentration Reset ..................................................... 7
Sensitivity Adjustment ................................................................. 7
Sensor Replacement................................................................... 8
Cleaning ..................................................................................... 8
Battery Replacement..................................................................... 9
For service on this or any other REED product or information on other
reedinstruments
www com
3
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Safety
Read through your instruction manual before operation for correct and
safe usage.
Warning
This combustible leak detector is not equipped with any anti-explosive
designs or measures. Do not use this unit in an environment with
ammable gasses present.
Warning
Although this 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. This units function is to pinpoint leaks as described in the
operating instructions.
Caution
Do not use this unit in areas of high concentrations of combustible gas.
Eliminate any organic solvents around the measuring area as the gases
and/or vapors from them might interfere with the unit’s accuracy.
In order to ensure correct operation and measurement, the unit should be
switched on and warmed-up in a non-contaminated atmosphere
Note
Be sure to test the unit (see testing the unit) often to ensure your safety
and the proper use of this unit.
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4
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Features
• Heated semiconductor gas sensor
• Gases sensed: gasoline, propane, natural gas or fuel oil
• High-Low sensitivity selector
• Detects leaks as small as 5ppm of gasoline
• Ambient concentration reset function
• Audible and visual leak indications
• Flexible stainless steel probe
• Low battery indication and auto power off
Specifications
Alarm Settings: Sound buzzer and tricolor LED bar indicator
Sensitivity: Variable, as low as 5ppm (Gasoline)
Power Supply: 4 x 1.5V AA alkaline batteries
Battery Life: Approx 40 hours of normal use
Sensor Probe Length: 400mm (15.5”)
Dimensions/Weight: 21.7 x 6.6 x 5.6cm / approx 400g
Auto power OFF: 10 minutes of inactive use
Warm-Up Time: Approx 90 seconds
Operating Temperature & Humidity:
0 to 40°C, <80%RH
Storage Temperature & Humidity:
-10 to 60°C, <70%RH
Altitude: <2000M (6500’)
Includes: Reference leak source, carrying case and 4 AA
alkaline batteries
Optional Accessories: Replacement Sensor (S-100B)
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5
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Instrument Description
1) Sensor
2) Sensor Protector
3) LED Leak Indicators
4) Low Sensitivity Button
5) High Sensitivity Button
6) Low Battery Indicator
7) Power ON/OFF & Reset Button
8) Battery Cover
9) Battery Cover Screw
LED Leak Indicator Definition
Ambient Concentration Indication
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6
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Operating Instructions
Note: There are some environmental conditions that might cause an
inaccurate reading: high pollutant environments, large temperature
variations, high wind velocity, environments containing combustible
gases, environments containing organic solvents, adhesive vapors, fuel
gases or vesicants.
Power-Up & Reset
The ON
OFF button turns this combustible leak detector instrument ON, OFF
and serves as an ambient concentration reset button (see ambient
concentration reset for more information).
Press ON
OFF once to turn on the combustible leak detector. The LED leak
indicators will then illuminate. Please take note, you have to wait for 1.5
minutes to heat up the sensor for proper functionality.
Press the ON
OFF again to reset the ambient concentration for the unit.
Press and hold the ON
OFF for 5 seconds to turn the unit OFF. If the unit is left
inactive for 10 minutes it will automatically turn off.
Testing the Unit
Turn the unit ON and set the sensitivity level to “Hi”. Open the cover to the
leak-check bottle and slowly move it closer to sensor tip. If the unit is in
working condition the LED leak indicators will light up, from low to high.
Repeat this process to conrm that the closeness of the leak-check bottle
results in the leak indicators to uctuate from low to high. If the unit does
not perform as stated you must send your unit in for maintenance. For
service on this or any other REED product, contact REED Instruments at
info@reedinstruments.com.
Measuring
Note: Fast movement of the sensor probe or blowing into the sensor tip
will affect the air ow over the sensor and cause the unit to alarm.
Position the tip of the sensor probe within 1/4 inch (6 mm) of the
suspected leak source. Slowly move the sensor probe past each possible
leakage point.
continued ...
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7
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
When the unit detects a leak source an audible tone will sound and visual
indicators will light on the LED leak indicator display, appearing from left
to right; green to orange to red (red being the highest concentration, green
the lowest). Increasing levels indicates the proximity of the leak location
is getting closer. When the unit signals a leakage, pull the probe away
from the leak for a moment and then bring it back slowly to pinpoint the
location. If the combustible leak is large setting the sensitivity switch to
LOW (see sensitivity adjustment) will make it easier to nd the exact site
of the leak. Return the sensitivity switch to HIGH before searching for any
additional leaks. When you’ve nished testing for leaks turn the unit OFF
and store it in a cool, dry, clean place to protect the sensor and unit from
any possible damage.
Ambient Concentration Reset
This combustible leak detector features an ambient concentration reset
function that sets the unit sensors to ignore the ambient gas concentrations
presented. When turned ON the unit’s sensor will set the level of present
combustible gas to zero. Only a concentration greater than what is initially
registered will cause the unit to alarm. Resetting the unit by pressing the ON
OFF
button during measurement resets the ambient concentration allowing the
unit to pinpoint the source of the leak allowing it to register higher concen-
trations. Resetting the unit with no combustibles present causes any read-
ing above zero to be detected. To do this simply move the unit to a location
that has clean and fresh air, such as outdoors and press the ON
OFF button.
CAUTION
Be aware that this feature will cause the unit to ignore any combustible
present when powered ON. If the unit sensor is pointing towards a leak
when you turn the unit ON the alarm will not sound
Sensitivity Adjustment
This unit provides two levels of sensitivity. When the unit is switched
ON it is set to high sensitivity by default. To change the sensitivity, press
the Lo
Sensitivity button. The two left green LED’s will then ash indicating low
sensitivity has been selected. To switch the unit back to high sensitivity,
press the
Hi
Sensitivity button. The two right red LED’s will then ash indicating
that high sensitivity has been selected.
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8
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Sensor Replacement
To ensure the accuracy of the unit, the sensor must be replaced periodi-
cally. This unit’s sensor has a limited operative period and under normal
operation it should stay operative for over a year. To prolong the sensor’s
life-cycle ensure that the sensor’s surface is free from water droplets,
vapor, oil, grease, dust and any other form of contaminant as well as any
exposure to high density coolants (>30000ppm).
WARNING
When replacing the sensor, the old sensor may be very HOT
1) Remove the sensor protector cover from the tip of the sensor
probe.
2) Pull out the old sensor and insert the new sensor into the plug
(see below).
3) Place the sensor protector over the new sensor.
Cleaning
This plastic housing can be cleaned with isopropyl alcohol or standard
household detergents. Do not allow any cleaner to enter the unit or to
come into contact with the sensor as it may cause damage. Gasoline and
any other solvents may damage the plastic and should be avoided.
reedinstruments
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9
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Battery Replacement
Note: When the battery power is running low, the red LED low battery
indicator will illuminate. The batteries should be replaced as quickly as
possible.
1) Loosen the battery cover screw and remove the battery cover
located on the bottom of the instrument as shown below.
2) Install 4 “AA” size alkaline batteries.
3) Replace battery cover by aligning it with the handle and sliding
back onto the unit.
4) Tighten the battery cover screw so the battery cover is
securely into place.
For service on this or any other REED product or information on other
reedinstruments
www com
10
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Notes _________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
reedinstruments
www com
11
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Notes _________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
reedinstruments
www com
12
Pantone 534 Blue
Pantone 123 Yellow
Pantone 485 Red
Pantone 123 Yellow
Pantone 534 Blue
Black Rich Black -
20/20/20/100
Blue - 100/80/30/5
Yellow - 0/27/100/0
Red - 10/100/100/5
Yellow - 0/27/100/0
Blue - 100/80/30/5
Only if you REALLY need them:
Pantone 534 Blue - 100/80/30/5
Pantone 485 Red - 10/100/100/5
Pantone 123 Yellow - 0/27/100/
Notes _________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
________________________________________________
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