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Portable combustible gas meter-P-508
Portable combustible gas meter-P-510H
Portable combustible gas meter-GC-708
Portable combustible gas meter-PTC-608
Portable combustible gas meter-Tohke Seiki Co., Ltd.

Portable combustible gas meter
Tohke Seiki Co., Ltd.

Tohke Seiki Co., Ltd.'s Response Status

Response Rate

100.0%

Response Time

143.6hours


About This Product

Suitable for monitoring flammable gas leaks at gas production and filling facilities, gas consumption facilities, ships and storage bases, etc. Target gas: LPG, butane, propane, methane, etc. Portable and easy to check and catch Detection principle

■Catalytic combustion method (P-508, P-510H, PTC608)

The detection section incorporates two platinum wire elements (D: gas detection element, C: temperature compensation element) that are heated to a relatively low temperature by an electric current, and the temperature compensation element reacts to flammable gas. measures have been taken to ensure that this does not occur. When the combustible gas in the sensing gas comes into contact with the gas sensing element, it burns due to catalytic action, and the generated heat increases the temperature of the platinum wire, increasing its electrical resistance. The amount of change in resistance value is proportional to the combustible gas concentration in the detected gas, so gas concentration can be detected by detecting the amount of change. The measurement range is from 0 to 100% LEL, and 100% LEL is the concentration of the flammable gas at its lower explosion limit.

■Thermal conduction type (GC-708, PTC-608)

The detection section incorporates a platinum wire gas detection element D that is heated to a relatively low temperature by an electric current and a temperature compensation element C, and the temperature compensation element is constructed so that it does not come into contact with the detection gas. Since the thermal conductivity of gas varies depending on the type and composition ratio of the gas, if the concentration of combustible gas in the sensing gas changes, the amount of heat removed from the sensing element will change, and the electrical resistance of the sensing element will increase or decrease. The amount of change in resistance value is proportional to the combustible gas concentration in the detected gas, so gas concentration can be detected by detecting the amount of change, and the measurement range is from 0 to 100 vol%.

  • Product

    Portable combustible gas meter

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4 Models of Portable combustible gas meter

Click on the part number for more information about each product

Image Part Number Price (excluding tax) Power supply Battery life Bulletproof construction Weight Alarm setting value Alarm display Display method Display gas name Measuring range Measuring gas Detection principle Indication accuracy Response time External dimensions Usage environment Gas extraction method Accessories
Portable combustible gas meter-Part Number-P-508

P-508

Available upon quote

AA manganese battery (R20P) x 2

More than 5 hours of continuous use

Id2G4 Detection part: Flameproof, Electrical part: Intrinsically safe explosion-proof

Approx. 1.5kg (body only)

20% LEL (changeable)

Electronic buzzer

Analog display

・LPG (0~1.8/0~0.36vol%) ・Gasoline (0~1.4/0~0.28vol%) ・Methane (0~5.0/0~1.0vol%)

0~100/0~20%LEL

Flammable gases in general (isobutane calibration)

Catalytic combustion method

Within ±5% of full scale

90% response within 30 seconds (excluding collection tube)

163 (W) × 137 (H) × 67 (D) mm

Temperature: -10~+50℃ Humidity: 90%RH or less (no condensation)

Automatic suction type

Sampling rod with WS filter, carrying case, gas sampling tube (1.5m or 5m)

Portable combustible gas meter-Part Number-P-510H

P-510H

Available upon quote

2 AA alkaline batteries (LR14)

More than 8 hours of continuous use

Id3aG4 (Hydrogen explosion-proof) Detection part: Flameproof, electrical part: Intrinsically safe explosion-proof

Approx. 1.6kg (body only)

20% LEL (changeable)

Electronic buzzer

Analog display

・LPG (0~1.8/0~0.36vol%) ・Gasoline (0~1.4/0~0.28vol%) ・Hydrogen (0~4.0/0~0.80vol%)

0~100/0~20%LEL

Flammable gases in general (isobutane calibration)

Catalytic combustion method

Within ±5% of full scale

90% response within 30 seconds (excluding collection tube)

163 (W) × 137 (H) × 67 (D) mm

Temperature: -10~+50℃ Humidity: 90%RH or less (no condensation)

Automatic suction type

Sampling rod with WS filter, carrying case, gas sampling pipe (5m), hex wrench

Portable combustible gas meter-Part Number-GC-708

GC-708

Available upon quote

2 AA alkaline batteries (LR14)

More than 4 hours of continuous use

Id2G4 Detection part: Flameproof, Electrical part: Intrinsically safe explosion-proof

Approx. 1.5kg (body only)

-

None

Analog display

・Butane (0~100/0~20vol%) ・Propane (0~100/0~20vol%)

0~100/0~20%LEL

Butane, propane, methane

Heat conduction type

Within ±5% of full scale

90% response within 30 seconds (excluding collection tube)

163 (W) × 137 (H) × 67 (D) mm

Temperature: -10~+50℃ Humidity: 90%RH or less (no condensation)

Automatic suction type

Sampling rod with WS filter, carrying case, gas sampling tube (1.5m or 5m)

Portable combustible gas meter-Part Number-PTC-608

PTC-608

Available upon quote

2 AA alkaline batteries (LR14)

More than 8 hours of continuous use

Id3aG4 (Hydrogen explosion-proof) Detection part: Flameproof, electrical part: Intrinsically safe explosion-proof

Approx. 1.6kg (body only)

%LEL mode: 20%LEL (changeable)

VOL% mode: None, %LEL mode: LED (red) and electronic buzzer

Analog display

・LPG (0~100vol%, 0~100%LEL)

0~100vol%, 0~100%LEL

LPG, general flammable gas (isobutane calibration)

VOL% mode: Heat conduction type (0~100vol%), %LEL mode: Catalytic combustion type (0~100%LEL)

Within ±5% of full scale

90% response within 30 seconds (excluding collection tube)

163 (W) × 137 (H) × 67 (D) mm

Temperature: -10~+50℃ Humidity: 90%RH or less (no condensation)

Automatic suction type

Sampling rod with WS filter, carrying case, gas sampling tube (5m), hex wrench, diluter, test gas for VOL%, calibration gas for %LEL, gas pack (2L), nitrogen gas for zero adjustment

Click on the part number for more information about each product

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About Company Handling This Product

Response Rate

100.0%


Response Time

143.6hrs

  • Japan

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