Clients

• Explosive Gas Atmosphere Equipment
• Part A: Barrier, P/N 50000021 R0
• Part B: Process Monitors, HY-ALERTA Model 1600
  and HY-OPTIMA Model 1700
• Rating: [Ex ib]  IIC

• CAN/CSA E60079-1:07
• CAN/CSA E60079-11:02

CONDITIONS OF ACCEPTABILITY

• Gas detection instruments of the laboratory or scientific type used for analysis or measurement, instruments intended by the manufacturer to prevent hazards due to toxic
  effects only, or instruments used solely for process control purposes.
• Apparatus to be marked and used as per the Limitation of Use sections

LIMITATION OF USE, Barrier P/N 50000021 RO

• To be used to limit power to the HY-Alerta, Model 1600 or HY-Optima, Model 1700 covered in Part B of this report to an intrinsically safe level.
• The Barrier P/N 50000021 R0 comprises a printed board housed within a
  plastic enclosure, which provides a degree of protection of at least IP20.
• The electrical parameters are:
  • Um = 250 V
  • Uo = 11.5 V
  • Io = 3.27 A
  • Po = 9.41 W
  • Ci = 0 μF
  • Li = 0 μH
  • Co = 11.2 μF
  • Lo = 29 μH
  • Lo/Ro = 33 μH/Ω

LIMITATION OF USE, HY-ALERTA Model 1600, and HY-OPTIMA Model 1700

• Intrinsic safety assured by the IS Shunt Safety Barrier P/N 50000021 RO
• Marking of the apparatus shall include
  • Ex ia II H2, d + d IIB T3 (zone 0)
  • Ex ib II H2, ib d IIB T3 (zone 1)
• Only the sensing head shall be installed in Zone 0
• The maximum intrinsically safe input and output parameters are:
  • J1 Pins 2 & 3 (Power Supply)
    • Ui = 11.5 V
    • Ii = 3.27 A
    • Pi = 9.41 W
  • The equivalent parameters are:
    • Ci = 0 μF
    • Li = 0 μH
  • J1 Pins 4 & 5 (4 -20 mA Loop)
    • Ui = 26.7 V
    • Ii = 91 mA
    • Pi = 0.61 W
  • The equivalent parameters are:
    • Ci = 68.2 nF
    • Li = 0 μH
  • J2 Pins 1 & 2 and 3 & 4 (Rx and Tx)
    • Ui = 3.7 V
    • Ii = 225 mA
    • Pi = 206 mW
  • The equivalent parameters are:
    • Ci = 0 μF
    • Li = 0 μH
    • Uo = 5.9 V
    • Io = 238 mA
    • Po = 0.35 W
    • Co = 1000 μF
    • Lo = 2.5 mH
    • Lo/Ro = 404 μH/Ω

General Note:

• Project no.: 9001
• LC Listing Report: 9001-1S_Rev.1
• LC Certificate no: 9001-1S