Publicité
4.1.1 Safety guidelines for hazardous locations
Warning: Explosion hazard. Batteries must only be changed in an area free of ignitible
concentrations.
Warning: Explosion hazard. Do not connect or disconnect when energized.
Warning: Explosion hazard. Do not disconnect while the circuit is live or unless the area is free of
ignitible concentrations.
Intrinsic safety
• Batteries must only be changed in an area free of ignitible concentrations.
• Only use batteries from Hach, LXZ449.99.00003.
• To reduce the risk of explosion, only install new batteries.
4.1.2 Hazardous location installation requirements
Installation of this equipment must obey local electrical code requirements as shown in the
hazardous location control drawings. Installation is subject to final approval by the authority that has
jurisdiction.
Specific conditions of use:
• It is end user's responsibility to select proper external antenna with an ingress protection rating of
at minimum IP54 according to IEC60529.
• Inductance and capacitance values specified for connection Power/4-20mA and RS232 have not
been assessed for simultaneous combination. Care shall be taken to ensure that the combination
of resistive, inductive and capacitive energies cannot result in an incendive spark. Refer to IEC
60079-25 for de-rating instructions.
4.1.3 Hazardous location control drawings
Explosion hazard. Never connect items to the CAx440EX field transmitter that are not specified on
the control drawing. Do not connect or disconnect any equipment unless power has been switched
off or the area is known to be non-hazardous.
Follow the control drawing provided and all codes and regulations for connection to the CAx440EX
field transmitter in the hazardous location. Refer to
63 ページ for the control drawing.
4.2 設置ガイドライン
• フィールド送信機は直射日光、熱源、腐食性化学物質またはガス (H
撃、研磨材、振動、衝撃、ほこり、放射線放射などを避けて保管してください。
• 指定された電気的、機械的、および熱的パラメータの範囲外、または測定範囲外でフィールド送信
機を使用しないでください。フィールド送信機取扱説明書の
4.3 センサの取り付け
ガス暴露の危険。硫化水素は毒性の強いガスです。安全データシート (MSDS/SDS) で指定されてい
る個人用保護具を着用してください。安全上の注意事項については、現在の安全データシート
(MSDS/SDS) を参照してください。
GS1440
、 GS2440EX H
62
日本語
S
センサ取扱説明書 を参照してください。
2
警 告
警 告
危 険
Approved CAx440EX installation drawing
仕様 を参照してください。
危 険
S を除くすべて)、機械的衝
2
Publicité
