Emerson Fisher 3610J Instruction Manual page 63

Instruction Manual
D200149X012
Figure 32. FM Loop Schematic for Fisher 3622 (Installation Drawing GE28590)
WARNING
FOR INTRINSICALLY SAFE APPLICATIONS: THE APPARATUS ENCLOSURE
CONTAINS ALUMINUM AND IS CONSIDERED TO CONSTITUTE A POTENTIAL
RISK OF IGNTION BY IMPACT AND FRICTION. AVOID IMPACT AND FRICTION
DURING INSTALLATION AND USE TO PREVENT RISK OF IGNTION.
NOTES:
1. THE INSTALLATION MUST BE IN ACCORDANCE WITH THE NATIONAL
ELECTRIC CODE (NEC), NFPA 70, ARTICLE 504 AND ANSI/ISA RP12.6 OR
ARTICLE 505.
2. THE CLASS 1, DIV 2 APPLICATIONS MUST BE INSTALLED AS SPECIFIED IN
NEC ARTICLE 501‐4(B). EQUIPMENT AND FIELD WIRING IS NON‐INCENDIVE
WHEN CONNECTED TO APPROVED BARRIERS WITH ENTITY PARAMETERS.
3. LOOPS MUST BE CONNECTED ACCORDING TO THE BARRIER
MANUFACTURER'S INSTRUCTIONS.
4. MAXIMUM SAFE AREA VOLTAGE SHOULD NOT EXCEED 250 Vrms.
5. RESISTANCE BETWEEN BARRIER GROUND AND EARTH GROUND
MUST BE LESS THAN ONE OHM.
6. NORMAL OPERATING CONDITIONS 30 VDC 20 mADC.
7. FOR ENTITY INSTALLATION (I.S. AND N.I.):
Vmax > Voc, or Vt
Imax > Isc, or It
Pi > Po, or Pt
GE28590
Ci + Ccable < Ca
Li + Lcable < La
3610J and 3620J Positioners
September 2017
63