GE HygroPro - Page 18

Chapter 1: Installation
Page 12 HygroPro User’s Manual
1.4.2 Hazardous Area Wiring Connections (cont.)
Figure 5: FM Schematic (ref. dwg #752-262)
Hazardous or Non-Hazardous Location
Class I, Division 1, Group ABCD
Class II, Division 1, Group EFG
Class III, Division 1
Non-Hazardous Location
HygroPro
Loop Terminal
Safety Entity Parameters:
Vmax = 28 V
Imax = 93.3 mA
Pi = 0.653 W
Ci = 0
Li = 62 uH RS485 Comm Terminal
Safety Entity Parameters:
Vmax = 3.72 V
Imax = 228 mA
Pi = 212 mW
Ci = 0
Li = 62 uH
Notes:
1. Installation shall be in accordance with the National Electrical Code
(ANSI/NFPA 70) or Part One of the Canadian Electrical Code (C221), as applicable.
2. The subject equipment is FM Approved, and FM Approved for Canada for the
following Hazardous (Classified) Locations and Protection Methods: Intrinsically Safe, Class I, II, III, Division 1, Group ABCDEFG, T4 T Ambient: -40 C to 60 C Enclosure: IP 67
3. Galvanically Isolated FM Approved (US) or Canadian Certified (for Canada)
associated apparatus installed in accordance with the manufactruer's instructions.
blue
brown
black white
Associated Apparatus Note 3
Loop-Power Device Note 4 RS485 Comm Note 4
Associated Apparatus Note 3
4. Equipment to which associated apparatus is connected shall not
use or generate in excess of 250V.
5. Maintain the following relationship between Intrinsic Safety (Entity)
Parameters of HygroPro and associated apparatus: HygroPro Vmax > associated apparatus Voc HygroPro Imax > associated apparatus Isc HygroPro Pi > associated apparatus Po HygroPro Ci + Ccable < associated apparatus Ca HygroPro Li + Lcable < associated apparatus La
Use cable P/N 230-049-01