Robertshaw 158A Manual do Utilizador descarregar pdf (Página 8)

Q-3867 (11/05) Printed in the U.S.A.

NOTES:

1. IN FIGURE 1, THE TRANSMITTER IS CSA CERTIFIED FOR HAZARDOUS LOCATIONS, CLASS I, DIVISION 1, GROUPS C & D; CLASS II, DIVISION 1,

GROUPS E, F & G. THE PROBE IS INTRINSICALLY SAFE FOR CLASS I, DIVISION 1, GROUPS A, B, C & D; CLASS II, DIVISION 1, GROUPS E, F & G.

IN FIGURE 2, THE TRANSMITTER IS CSA CERTIFIED FOR ENCLOSURE 5. THE PROBE IS INTRINSICALLY SAFE FOR CLASS I, DIVISION 1,

GROUPS A, B, C & D; CLASS II, DIVISION 1, GROUPS E, F & G.

2. R. STAHL INC., MODEL 8901/33-293/000-79 OR CSA CERTIFIED EQUIVALENT (28.1V MAX., 300 OHM MIN.) POSITIVE-POTENTIAL SIGNAL RETURN

LINE BARRIER WITH INTRINSICALLY SAFE TERMINALS 2 (GROUND) AND 3. BARRIER MUST BE MOUNTED AND GROUNDED OUTSIDE THE

HAZARDOUS AREA IN ACCORDANCE WITH THE INSTRUCTIONS PACKED WITH BARRIER. POTENTIAL TO GROUND MUST NOT EXCEED 250V

RMS (360V PEAK).

3. ROBERTSHAW MODELS 158A – (A, B) (1, 2) – (C, D) 1.

4. ROBERTSHAW MODELS 158A – (A, B) (1, 2) – (A, B) 1.

5. ROBERTSHAW MODEL 702, 728, 729, 736, 738, 739, 740 0R 741 PROBE. INSULATED PROBES ONLY MAY BE USED IN CLASS II, GROUPS E & F

AREAS.

6. 650 OHMS MAXIMUM TOTAL LOOP RESISTANCE, EXCLUDING BARRIER RESISTANCE.

7. FOR AN INTRINSICALLY SAFE INSTALLATION, ALL WIRING BETWEEN THE BARRIER AND THE TRANSMITTER MUST BE INSTALLED IN RIGID

METAL CONDUIT.

DRAWING 907GA518

DIAGRAM FOR INTRINSICALLY SAFE

INTERCONNECTIONS FOR MODELS

158A-(A, B) (1, 2) - (A, B, C, D) 1

U.S.A. & Canada

Robertshaw Industrial Products

1602 Mustang Drive

Maryville, Tennessee 37801

Phone: (865) 981-3100 Fax: (865) 981-3168

http://www.robertshawindustrial.com

Exports

Invensys Controls

1701 Byrd Avenue

P.O. Box 26544

Richmond, Virginia 23261-6544

Phone: (804) 756-6500 Fax: (804) 756-6561

1 2 3 4 5 6 7 8

Sem comentários

Robertshaw 158A Manual do Utilizador Página 8