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Certification Record

70680
H2Scan Corporation
2008-03-04
California
United States
HY-ALERTA Model 1600 and HY-OPTIMA Model 1700
29.260.20

The HY-Alerta Model 1600 is an open monitor and HY-Optima Model 1700 is a process monitor units designed to detect and/or measure hydrogen as a component in a gas mixture.

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, 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

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