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가연성 가스센서
방폭인증
kgs703
KGS 703
제품 특징
  • 방폭 인증 받은 접촉연소식 가스센서
  • 저소비전력의 휴대용 가스 감지기용 센서
  • 뛰어난 HMDS (silicone) 및 H2S 저항성
  • 충격에 강하고 방향효과(orientation effects)에 대한 영향이 적음
제품 사양
감지 가스 가연성가스
감지 원리 접촉연소식
감지 범위 0 ~ 100% LEL
구동 전압 4.25 V
전류 56 ± 6 mA
출력 감도 40 ± 6 mV / % methane
오프셋 전압 -20 ~ 20 mV (23 ± 2℃, 60% RH)
선형성 유지 범위 3% methane
T90 응답시간 < 10 seconds (methane)
장기간 출력감도 변화 < 5% signal / month
장기간 오프셋 전압 변화 < 5% LEL (methane) / month
보증 기간 발송일로부터 1년 (in clean air)

* 유량 300ml/min. 별도의 언급이 없는 한 23 ± 2 ℃, 60% RH, and 1 atm 조건입니다.

상대 감도
Gas/Vapor % Relative Sensitivity
Methane 100
Hydrogen 106
Ethylene 96
Propane 82
Isobutane 74
n-Pentane 67
Hexanes 50

* 참고용 수치이며, 정확한 상대 감도는 측정 조건에 따라 변할 수 있습니다.

구조 및 소재
구조 및 소재
인증 규격
  • Approval Body: Underwriters Laboratories Inc.
  • Test Standard: UL 913
  • Product Categories: Class 1, Division 1, Groups A, B, C, D
  • Certificate Number: E248963
  • Approval Body: Canadian Standards Association
  • Test Standard: CAN/CSA-C22.2 No. 0-M91, CSA Std C22.2 No. 30-M1986
  • File Number: 237868
  • Approval Body: Bureau Veritas
  • Test Standard: EN IEC 60079-0:2018, EN IEC 60079-1:2014
  • Product Categories-1: Ⅱ 2G Ex db ⅡC Gb, -40℃ ≤ Tamb ≤ +55℃
  • Product Categories-2: Ⅱ 1G Ex da ⅡC Ga, -20℃ ≤ Tamb ≤ +55℃
  • Certificate Number: EPS 17 ATEX 1 107 U, EPS 23 UKEX 1 123 U, IECEx EPS 17.0058U
Instructions specific to hazardous area installations (reference European ATEX Directive 2014/34/EU)
Instructions for equipment covered by certificate number EPS 17 ATEX 1 107 U, IECEx EPS 17.0058 U and EPS 23 UKEX 1 123U.
  1. With apparatus group IIA, IIB, and IIC, the equipment may be used with flammable gases and vapors.
  2. The equipment(KGS701, KGS702, KGS703, KGS704, KGS801, KGS802, KGS803, KGS804, KGS901, KGS902, KGS903) shall be used in ambient temperatures of -40℃ to +55℃ in Gb and -20℃ to +55℃ in Ga.
  3. The equipment is not considered as a safety related device (as referred to by Directive 2014/34/EU)
  4. Properly trained personnel shall install the equipment in accordance with the applicable code of practice (e.g. EN/IEC 60079-14)
  5. Properly trained personnel shall carry out inspection and maintenance in accordance with the applicable codeof practice (e.g. EN/IEC 60079-17)
  6. Properly trained personnel shall carry out repair of this equipment in accordance with the applicable code of practice (e.g. EN/IEC 60079-19)
  7. Sensor pins are designed to be connected to a gas detector which shall provide an intrinsically safe supply and having a maximum output power. It should be stated that according to EN/IEC60079-1 clause 4.2 the input power must be limited by circuit complying with type of protection "ia" according to EN/IEC 60079-11.
  8. The confirmation of adequate sensor performance is recommended to be carried out regularly by a specified sensor calibration procedure.
    The calibration shall be done as often as needed according to surrounding environment where the sensor is intended to operate.
  9. The following materials are used for the construction of this equipment.

    - Housing Material: Stainless steel 316 or 316L
    - Sinter Material: Stainless steel 316L, Maximum pore size of 70㎛, Density of 4.0 to 6.0g/㎤
    - Cement Material: Epoxy resin, Maximum functional temperature of 150 ℃

    Where there is a risk of the equipment exposed to harmful substances (e.g. acidic liquids or gases that may damage metals, or solvents that may affect polymeric materials), the user is responsible for taking the suitable precautions (e.g. regular checks as part of routine inspections or establishing from the material’s data sheet that it is resistance to specific chemicals). The precautions are to prevent the equipment from being adversely affected and to ensure that the type of protection shall be maintained.
  10. The following factors are identified to have a harmful effect on catalytic elements as used in the gas sensors, KGS 701, KGS 702, KGS 703, KGS 704, KGS 801, KGS 802, KGS 803, KGS 804, KGS 901, KGS 902, and KGS 903

    Poisoning: some compounds will decompose on the catalyst and form a solid barrier over the catalyst surface.
    This action is cumulative and prolonged exposure will result in an irreversible decrease in sensitivity. The most common of these substances are: lead or sulphur containing compounds; silicones; phosphates.
    Inhibition: certain other compounds, especially hydrogen sulphide and halogenated hydrocarbons, are absorbed or form compounds that are absorbed by the catalyst. The resultant loss of sensitivity is temporary and in most cases a sensor will recover after a period of operation in clean air.
    If the presence of poisoning or inhibition is suspected, adequate protective action for the sensor should be taken.
  11. The Certification marking is shown

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