It comes with relational software for downloading data and data logging, as well as for programming. The CEM GD-3803 handheld device has a rechargeable battery and can save up to 500 data points.

FEATURES

• Oxygen Measurement
• Carbon Monoxide Measurement
• Carbon Dioxide Measurement
• Air Temperature Measurement
• Humidity Measurement
• 500 Data Points
• Rechargeable Battery
• MIN, MAX, AVG, HOLD Display
• Temperature Unit Converter
• Auto Power Off
• Record Data
• Query Data
• Backlight
• Record Time

The post Multiple Gas Analyser | CEM GD-3803 appeared first on Obiat Electronics.

REED C-380 Specifications

• Gases Sensed: CFCs: R11, R12, R13; HCFCs: R22, R502,
  R500; HFCs: R134a, R123, R125, R23, R404A,
  R407C, R410A & other halogen based compounds
• Sensitivity: R22, 134a: Hi 6g/year, L: 30g/year
  R404A, 407C, 410A: Hi 8g/year, L: 40g/year
• Alarm Settings: Buzzer, Tricolour LED bar indicator
• Sensor: Advanced ionization detection
• Response Time: Less than 1 second
• Warm-up Time: 10 seconds
• Probe: 390mm (15”) flexible stainless probe
• Ambient Conditions: 32 to 104°F (0 to 40°C), 0 to 80% RH
• Power Supply: Four AA alkaline battery, Low battery indication
• Auto Power Off: 10 minutes
• Battery Life: Approx. 40 hours
• Dimensions: 17.3 x 6.6 x 5.6 cm
• Weight: 500 g

Includes:

• Reference leak source,
• carrying case and batteries

How to use Refrigerant Gas Leak Detector (C-380)

Power-Up & Reset the instrument
Press ON/OFF once to turn on the refrigerant leak detector. The sensor will heat up for 1.5 minutes and you have to wait for proper functionality. Press the ON/OFF again to reset the ambient concentration for the unit. After this time reset the ambient concentration for the unit by pressing the ON/OFF button again.

Sensitivity Adjustment
When the unit is switched ON it is set to high sensitivity by default. To change the level of sensitivity to LOW, press the “Lo Sensitivity” button. To switch the unit back to high sensitivity, press the “Hi Sensitivity” button

Automatic Ambient Setup
This “ambient concentration reset function” sets the unit sensors to ignore the ambient concentrations of refrigerant present. When turned ON the unit’s sensor, the instrument using itsAutomatic Ambient Setupto set itself to ignore the level of refrigerant present at the tip. Only a level or concentration great than this will cause the unit to alarm. During the gas leak operations, resetting the instrument using the Ambient Reset Feature programs the circuit to ignore the level of refrigerant present at the tip of the sensor.

Measuring gas leak with C-380 instrument
Find out the suspected leak source and position the tip of the sensor probe within 1/4 inch (6 mm) of this. Slowly move the sensor probe past each possible leakage point. 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. The visual indicator will be green to orange to red (red being the highest concentration, green the lowest). 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 refrigerant leak is large setting the sensitivity switch to LOW (see sensitivity adjustment) will make it easier to find the exact site of the leak. Return the sensitivity switch to HIGH before searching for any additional leaks. When you’ve finished 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.

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How to use Handheld Gas Detector (C-383)

Sensitivity Adjustment
You will be able to set two levels of sensitivity. By default Reed C-383 is set to high sensitivity when the instrument is switched ON. Start changing the sensitivity by pressing the “Lo Sensitivity” button. The two left green LED’s will then flash 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 flash indicating that high sensitivity has been selected.

Ambient Concentration Reset
This Handheld Gas Detector (C-383) comes with an ambient concentration reset function. This feature able you to set the Reed C-383’s sensors to the ambient gas concentrations presented. Start doing this by turning ON the unit’s sensor that will set the level of present combustible gas to zero. Move your instrument to a location that has clean and fresh air, such as outdoors and press the ON/OFF button.

Measuring
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. When the Gas Detector 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 find the exact site of the leak. Return the sensitivity switch to HIGH before searching for any additional leaks. When you’ve finished 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.

REED C-383 Specifications

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