Siemens LC 500, Sitrans instruction manual Approval

Page 108 SITRANS LC 500 – INSTRUCTION MANUAL

Hazardous (Classified) Location

Class I, Div. 1, Groups A, B, C, and D: Vmax = 30 V, Imax = 110 mA, Ci = 0, Li = 10µH

Class I, Div. 1, Groups C and D: Vmax = 30 V, Imax = 200 mA, Ci = 0, Li = 10 µH

Class I, Div. 2, Groups A, B, C and D: Vmax = 33 V, Imax = 24 mA, installation without associated apparatus.

Temperature class T4 for class I, Div. 1 applications -40°C < ambient temperature < +85°C

MERCAP 500 / POINTEK CLS500 UNIT

MERCAP/2
MERCAP/F	MERCAP/FTS
	solid state output
	CPU
	Current loop output
MERCAP/N	MERCAP/FTF
	Merflame enclosure

External earth terminal

Installation must be in accordance with the National Electrical Code (R) (NFPA 70, Article 504) and ANSI/ISA-RP12.6

Appendix F

	Non - hazardous Location				SITRANSLC500	ControlDrawing
	For FM Flame proof applications only:
	Supply voltage fused with 3 A fuse (power limited)
		For groups A, B, C or D
		Current loop barriers:	SS relay barrier:	Current sum of both
		Voc or Vt	Voc or Vt	barriers' Isc or It
				must not exceed
				following:
		30 Vdc	30 Vdc	100 mA
Class I, Div. 1, Groups A, B, C and D		30 Vdc	24 Vdc	120 mA
Associated Apparatus with entity parameters:
Voc < 30 Vdc
Lsc < 110 mA						FM/CSA
Ca < Ø + Lcable		26 Vdc	24 Vdc	150 mA
La < 10 µH + Lcable
		For groups C or D only:
Class I, Div. 1, Groups C and D		Current loop barriers:	SS relay barrier:	Current sum of both
Associated Apparatus with entity parameters:
		Voc or Vt	Voc or Vt	barriers' Isc or It
Voc < 30 Vdc
				must not exceed
Lsc < 200 mA
				following:
Ca < Ø + Lcable
La < 10 µH + Lcable		30 Vdc	30 Vdc	260 mA
						Approval
3) FM: Installation must be in accordance with the		National Electrical Code (ANSI/NFPA 70) and ANSI/ISA-RP12.6		310 mA
		30 Vdc	24 Vdc

NOTES:

1) Two FMRC or CSA approved single or dual channel barriers which meet the voltage (Voc or Vt) and current (Isc or It) parameters shown in the tables for the appropriate group can be used. The Ca and La

Entity parameters specified in the barrier manufactures' control drawings are not used.

Instead, the instrument's cable length is limited to the lengths shown in the tables.

2) All other installation instruction provided in the barrier manufactures' control drawing must be followed.

4) For Canada: Installation must be in accordance with the Canadian Electrical Code, Section 18. The installation must meet all applicable sections of the Canadian Electrical Code (C.E.C.)

7ML19985GE01

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