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33949

INTRINSICALLY SAFE

System Wiring Control Package

Load Cell Wiring for

Hazardous Environments

Summary of content (45 pages)

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INTRINSICALLY SAFE System Wiring Control Package Load Cell Wiring for Hazardous Environments 33949
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Contents About This Manual................................................................................................................................... 1 Using the Drawing Package ................................................................................................................... 1 1.0 Control Drawing 66090............................................................................................................... 3 1.1 Application Notes . . . . . . . . . . . . . . . . . . . . . . . .
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About This Manual When specifying intrinsically safe (IS) applications, begin by identifying the environment as Classification I, II, or III; Division 1 or 2; and Group A, B, C, D, E, F, or G. Plant safety engineers and licensed electricians should provide you with hazardous environment classifications. Next, determine the location of each of the components with respect to safe and hazardous areas. When going from hazardous to safe areas, IS barriers may be needed.
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2 Load Cell Wiring for Hazardous Environments
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1.0 Control Drawing 66090 The following load cell models are listed below for control drawing 66090, • RL1010 • RL1040 • RL1140 • RL1250 • RLETO • RLHTO • RL1042 • RL1260 • RL1521A • RLHBB • RL30000D • RL75058A 1.1 Application Notes Notes for Control Drawing 66090 are illustrated on page 4. 1.2 Application Chart The Application Chart is illustrated on page 5. 1.
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4 Load Cell Wiring for Hazardous Environments 11. DIFFERENT INTRINSICALLY SAFE SYSTEMS SHALL NOT BE RUN IN THE SAME MULTICONDUCTOR CABLE. DIFFERENT INTRINSICALLY SAFE CIRCUIT OF THE SAME INTRINSICALLY SAFE SYSTEM SHALL NOT BE RUN IN THE SAME CABLE, UNLESS AT LEAST .25 mm THICKNESS INSULATION IS USED ON EACH CONDUCTOR, OR UNLESS NO HAZARD RESULTS FROM INTERCONNECTION. IF IN DOUBT, CONTACT THE LOCAL INSPECTION AUTHORITY. 10. ALL WIRING HAS DISTRIBUTED INDUCTANCE AND CAPACITANCE.
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Control Drawing 66090 5 (AC) +EXC. GND. +OUT -OUT +EXC. GND. +OUT -OUT +EXC. GND. +OUT -OUT MTL766 DUAL MTL761 DUAL SIGNAL Z361/EX DUAL Z361/EX DUAL Z366/EX DUAL Z361/EX DUAL DUAL +EXC. +SENS. +OUT -OUT +EXC. +SENS. +OUT -OUT Z361/EX DUAL Z361/EX DUAL Z366/EX DUAL Z361/EX DUAL +EXC. -EXC. +SENS. -SENS. +OUT -OUT Z366/EX DUAL Z364/EX DUAL Z361/EX DUAL +EXC. -EXC. +SENS. -SENS. +OUT -OUT MTL761 DUAL MTL764 DUAL MTL761 DUAL +EXC. -EXC. +SENS. -SENS. +OUT -OUT +EXC. -EXC. +SENS. -SENS.
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6 Load Cell Wiring for Hazardous Environments LOAD CELL -SEN +SEN 18 18 --THIRD ANGLE PROJECTION TREATMENT --- DES.ENG. APPROVED MFG.ENG. APPROVED 0 FOR RLWS USE ONLY PJM 10/5/00 PJM 10/5/00 --- SURFACE FINISH TOL. DR.BY ------- SCALE 1:2 SHEET 3 OF 9 REVISION DWG NO NEW 66090 WIRING DIAGRAM, LOAD CELLS IN HAZARDOUS AREAS RICE LAKE WEIGHING SYSTEMS TITLE DFH 10/5/00 DECIMAL CKD.
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Control Drawing 66090 7 LOAD CELL -SEN 18 --- --- THIRD ANGLE PROJECTION TREATMENT MATERIAL DES.ENG. APPROVED MFG.ENG. APPROVED 0 FOR RLWS USE ONLY PJM 10/5/00 PJM 10/5/00 --- SURFACE FINISH DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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8 Load Cell Wiring for Hazardous Environments -SEN LOAD CELL +SEN 18 18 -EXC +OUT -OUT +EXC --- --- THIRD ANGLE PROJECTION TREATMENT MATERIAL (1 EA. LOAD CELL) 16 DES.ENG. APPROVED MFG.ENG. APPROVED 0 FOR RLWS USE ONLY PJM 10/5/00 PJM 10/5/00 --- SURFACE FINISH DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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Control Drawing 66090 9 LOAD CELL -EXC -SEN +OUT -OUT +SEN +EXC --- --- THIRD ANGLE PROJECTION TREATMENT MATERIAL DES.ENG. APPROVED MFG.ENG. APPROVED 0 FOR RLWS USE ONLY PJM 10/5/00 PJM 10/5/00 --- SURFACE FINISH DR.BY ------- OUTPUT SIGNAL, mV INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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10 Load Cell Wiring for Hazardous Environments LOAD CELL 18 18 OPTIONAL JUNCTION 6 BOX +OUT -OUT +SEN -SEN -EXC +EXC TO 4 LOAD CELLS WHICH ARE CONNECTED IN PARALLEL AT THE JUNCTION BOX.) FLOATING +/- POWER SUPPLY WITH SENSING (THIS CONFIGURATION MAY BE USED WITH 2 -SEN +SEN HAZARDOUS LOCATION --- --- THIRD ANGLE PROJECTION TREATMENT MATERIAL 16 16 16 16 18 2 1 2 1 2 1 2 1 DES.ENG. APPROVED MFG.ENG.
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Control Drawing 66090 11 LOAD CELL 18 18 SEE SHEET 2 HAZARDOUS LOCATION --- --- 4 3 4 3 4 3 4 3 4 3 6 4 2 1 2 1 2 1 2 1 2 1 3 1 DES.ENG. APPROVED MFG.ENG. APPROVED 0 FOR RLWS USE ONLY PJM 10/5/00 PJM 10/5/00 --- SURFACE FINISH DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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12 Load Cell Wiring for Hazardous Environments LOAD CELL 18 18 SEE SHEET 2 -OUT +OUT -SEN +EXC +SEN +EXC (1 EA. LOAD CELL) HAZARDOUS LOCATION --- --- THIRD ANGLE PROJECTION TREATMENT MATERIAL 4 3 4 3 4 3 4 3 4 3 4 3 2 1 2 1 2 1 2 1 2 1 2 1 DES.ENG. APPROVED MFG.ENG. APPROVED 0 FOR RLWS USE ONLY PJM 10/5/00 PJM 10/5/00 --- SURFACE FINISH DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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2.0 Control Drawing 66020 The following load cell models are listed below for control drawing 66020, • RL70000B • RL70000SS • RL75223 • RL8C2P1 • RL39523 • RLHTC • RL20953 • RL30933 • RL20000SS • RL8C2P1SST • RL30000B 2.1 Application Notes Notes for Control Drawing 66020 are illustrated on page 14. 2.2 No Barrier Installation The No Barrier Installation wiring diagram is illustrated on page 15. 2.
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14 Load Cell Wiring for Hazardous Environments 15. WHEN ALL BARRIERS ARE POSITIVE POTENTIAL, IT IS SUITABLE FOR GROUPS I.S./I,II,III/DIV 1/A-G. WHEN FIRST 3 BARRIERS ARE POSITIVE POTENTIAL AND THE REST ARE NEGATIVE POTENTIAL IT IS SUITABLE FOR GROUPS I.S./I,II,III/DIV 1/C-G. 16. Vt AND It OF THE BARRIERS MUST NOT EXCEED THOSE STATED ON CHART. 13. APPARATUS LOCATED IN THE HAZARDOUS AND THE ASSOCIATED APPARATUS IN THE NON-HAZARDOUS LOCATIONS MUST HAVE AN ENTITY APPROVAL. 14.
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Control Drawing 66020 15 LOAD CELL BOX 5 + + - -EXC +SEN -SEN +OUT -OUT NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL TOL. DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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16 Load Cell Wiring for Hazardous Environments FLOATING SYSTEM WITH MTL BARRIER LOAD CELL OPTIONAL JUNCTION BOX 5 -OUT +OUT +SEN -SEN -EXC +EXC HAZARDOUS LOCATION CLASS I, DIV 1, GROUPS A-D CLASS II, DIV 1, GROUPS E-G CLASS III, DIV 1 OPTIONAL BARRIER BOX 5 MTL P/N 761 MTL P/N 764ac MTL P/N 761, 766 NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL 2 1 2 1 2 1 + - + - + - TOL. DR.
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Control Drawing 66020 17 GROUNDED SYSTEM WITH MTL BARRIER LOAD CELL OPTIONAL JUNCTION 5 BOX 12 4 3 4 3 4 3 OPTIONAL BARRIER 5 BOX MTL P/N 761 MTL P/N 764 MTL P/N 722 NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL + - + TOL. DR.
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18 Load Cell Wiring for Hazardous Environments FLOATING SYSTEM WITH STAHL BARRIER LOAD CELL OPTIONAL JUNCTION BOX 12 -OUT +OUT -SEN +SEN -EXC +EXC HAZARDOUS LOCATION CLASS I, DIV 1, GROUPS A-D CLASS II, DIV 1, GROUPS E-G CLASS III, DIV 1 OPTIONAL BARRIER BOX 5 (SIGNAL) 9002/22-093-040-00 (-SENSE) 9001/02-016-015-10 (+SENSE) 9001/01-168-020-10 (-EXCITATION) 9001/02-016-150-11 (+EXCITATION) 9001/01-158-390-10 NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL 2 1 2 1 2 1 2 1
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Control Drawing 66020 19 LOAD CELL 87.5 OHMS MIN. CLASS III, DIV 1 15 NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL TOL. DR.BY DES.ENG. APPROVED ------- Vmax. = +12V Vmax. = +16V Vmax. = -16V Vmax. = +16V Vmax. = -16V Imax. = 179 mA Imax. = 50 mA Imax. = 50 mA Imax. = 50 mA Imax. = 50 mA BY FACTORY MUTUAL PRIOR TO RELEASE.
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3.0 Control Drawing 66021 The following load cell models are listed below for control drawing 66021, • RLETB • RL20000A • RLETS • RL30000A • RL20001HE • RL30001A • RL70000A • RL30002A • RLHSS • RL35023S • RLSB250 • RL35082 • RLSSB • RL35083 • RL75016WHE • RL39123A • RL75223A • RL50210A • RL75060S • RL75040A • RL75058 3.1 Application Notes Notes for Control Drawing 66021 are located on page 21. 3.2 No Barrier Installation The no barrier wiring diagram is illustrated on page 22. 3.
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Control Drawing 66021 21 13. SEE SHEET 2 FOR NO BARRIER APPLICATION. NONE THIRD ANGLE PROJECTION TREATMENT MATERIAL 12. EACH SHEET LISTS THE LOAD CELL MODEL NUMBERS TO WHICH IT APPLIES. BARRIER BOXES : BBX-XX SERIES. --- RICE LAKE WEIGHING SYSTEMS MANUFACTURES JUNCTION BOXES AND BARRIER BOXES. 11. JUNCTION BOXES : EL604STA, EL604STR, EL604ETA, EL210, EL211A, AND JB808. 350 OHM BRIDGES ARE TYPICAL VALUES, BRIDGE RESISTANCE MAY BE = OR > 350 OHMS. 10. 9.
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22 Load Cell Wiring for Hazardous Environments 9 RL20000A RL30000A RL30001A RL30002A RL39123A RL35082 RL35083 RL75040A RL50210A RL35023S RL75058 RLETB RLETS RL20001HE RL70000A RLHSS RLSB250 RLSSB LOAD CELL MODEL NUMBERS: 10 LOAD CELL + - -SEN +OUT -OUT NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL FOR 15 V EXCITATION 1 TO 4 350 OHM CELLS OR 1 TO 8 700 OHM CELLS. OUTPUT SIGNAL, mV TOL. DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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Control Drawing 66021 23 9 1 2 4 6 8 NUMBER OF LOAD CELLS RL75040A RL75058 RL75016WHE RL75223A RL70000A RL75060S LOAD CELL MODEL NUMBERS: 700 OHM LOAD CELL BRIDGE 3 +OUT 6.6V 5.7V 4.4V 3.6V 3.0V VOLTAGE AT LOAD CELL 10V EXC 8V EXC 7.9V 6.2V 4.9V 3.9V 3.2V OPTIONAL BARRIER BOX 11 MTL764 AC MTL764 AC MTL761 MTL761 (1 TO 8 CELLS) NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL - + - + - + OUTPUT SIGNAL, mV TOL. DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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24 Load Cell Wiring for Hazardous Environments 9 4 3 4 +OUT -OUT OPTIONAL BARRIER BOX 11 MTL764 AC MTL764 AC MTL766 MTL766 VOLTAGE AT LOAD CELL (15V EXCITATION) 11.9V 9.8V 7.3V 5.8V 4.8V 1 2 4 6 8 (1 TO 8 CELLS) NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL - + - + - + OUTPUT SIGNAL, mV TOL. DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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Control Drawing 66021 25 10 RL20000A RL20001HE RL30000A RL30001A RL30002A RL39123A RL35082 RL35083 3 +OUT OPTIONAL BARRIER BOX 11 MTL764 AC MTL764 AC MTL766 - MTL766 + 7.6V 5.4V 4.1V 3.3V 1 2 3 4 NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL - + - + - + OUTPUT SIGNAL, mV TOL. DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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26 Load Cell Wiring for Hazardous Environments 10 RL20000A RL20001HE RL30000A RL30001A RL30002A RL39123A RL35082 RL35083 LOAD CELL MODEL NUMBERS: 350 OHM LOAD CELL BRIDGE 3 +OUT OPTIONAL BARRIER 11 BOX 9002/22-093-040-00 9001/02-016-015-10 9001/01-168-020-10 9001/02-016-150-11 9001/01-158-390-10 VOLTAGE AT LOAD CELL (10V EXCITATION) 7.65V 6.51V 5.64V 5.00V 1 2 3 4 (1 TO 4 CELLS) NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL - + - + - + OUTPUT SIGNAL, mV TOL. DR.
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Control Drawing 66021 27 9 3 3 -SEN +OUT OPTIONAL BARRIER BOX 11 9002/22-093-040-00 9001/02-016-015-10 9001/01-168-020-10 9001/02-016-150-11 9001/01-158-390-10 VOLTAGE AT LOAD CELL (10V EXCITATION) 8.40V 7.65V 6.51V 5.64V 5.00V 1 2 4 6 8 (1 TO 8 CELLS) NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL - + - + - + OUTPUT SIGNAL, mV TOL. DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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28 Load Cell Wiring for Hazardous Environments 10 RL20000A RL20001HE RL30000A RL30001A RL30002A RL39123A RL35082 RL35083 3 3 -SEN +OUT OPTIONAL BARRIER BOX 11 9002/22-093-040-00 9001/02-016-015-10 9001/01-199-020-10 9001/02-016-150-11 9001/01-199-390-10 VOLTAGE AT LOAD CELL (15V EXCITATION) 11.45V 9.55V 8.17V 7.17V 1 2 3 4 (1 TO 4 CELLS) NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL - + - + - + OUTPUT SIGNAL, mV TOL. DR.
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Control Drawing 66021 29 9 3 3 -SEN +OUT OPTIONAL BARRIER BOX 11 9002/22-093-040-00 9001/02-016-015-10 9001/01-199-020-10 9001/02-016-150-11 9001/01-199-390-10 VOLTAGE AT LOAD CELL (15V EXCITATION) 12.70V 11.45V 9.55V 8.17V 7.17V 1 2 4 6 8 (1 TO 8 CELLS) NONE --- THIRD ANGLE PROJECTION TREATMENT MATERIAL - + - + - + OUTPUT SIGNAL, mV TOL. DR.BY ------- INIT BY FACTORY MUTUAL PRIOR TO RELEASE.
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4.0 Control Drawing 66147 The following load cell models are listed below for control drawing 66147, • RL1380 4.1 Wiring Diagrams - includes model number: RL1380 The wiring diagrams are located on pages 31 and 32.
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Control Drawing 66147 31 B A MANUFACTURED MANUFACTURED 4. MULTIPLE LOAD CELLS MAY BE USED IN CONJUNCTION WITH AN AVERAGING JUNCTION BOX. HOWEVER, THE AVERAGING JUNCTION BOX MUST NOT CONTAIN ANY ELECTRONICS OTHER THAN A PRINTED CIRCUIT BOARD FOR PARALLEL CONNECTION OF LOAD CELLS. RL1380 NOTES: 1. INSTALLATION WIRING TO BE IN ACCORDANCE WITH ANSI/ISARP 12.6, INSTALLATION OF INTRINSICALLY SAFE INSTRUMENT SYSTEMS IN CLASS I, II HAZARDOUS AREAS. 2.
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32 Load Cell Wiring for Hazardous Environments VMAX = 12V C1=0 + SIGNAL VMAX = 12V C1=0 IMAX = 100MA LI=0 - EXCITATION 4. ASSOCIATED APPARATUS MUST HAVE FM ENTITY APPROVAL. 5. ONLY SINGLE CHANNEL BARRIERS OF SAME POLARITY MAY BE USED. 6. VOC. AND Isc ON INDIVIDUAL BARRIERS MUST NOT EXCEED VALUES SHOWN. 7. NO REVISIONS ARE TO BE MADE TO THIS DOCUMENT WITHOUT PRIOR WRITTEN APPROVAL OF THE FACTORY MUTUAL RESEARCH COMPANY. RL1380 NOTE: 1. INSTALLATION WIRING TO BE IN ACCORDANCE WITH ANSI-ISARP 12.
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5.0 Control Drawing 53414 The following load cell models are listed below for control drawing 53414, • RL20000B • RL20001-T10 • RL3000 • RL35023-N5 • RL90000 • RL30000W • RL35023SS • RL1521 • RL35023 • RL70000C • RL75016 • RL75040 • RL75058B • RL75223B • RL75016SS 5.1 Application Notes Notes for Control Drawing 53414 are located on page 34. 5.2 No Barrier Installation The No Barrier Installation wiring diagram is illustrated on page 35. 5.
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34 Load Cell Wiring for Hazardous Environments A SUITABLE JUNCTION OR SUMMING BOX. 11. 13. SEE SHEET 2 FOR NO BARRIER APPLICATION. NONE THIRD ANGLE PROJECTION TREATMENT SEE NOTES MATERIAL 12. EACH SHEET LISTS THE LOAD CELL MODEL NUMBERS TO WHICH IT APPLIES. 350 OHM BRIDGES ARE TYPICAL VALUES, BRIDGE RESISTANCE MAY BE = OR > 350 OHMS. 10. 9. 700 OHM BRIDGES ARE TYPICAL VALUES, BRIDGE RESISTANCE MAY BE = OR > 700 OHMS. TOL. DR.
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Control Drawing 53414 35 9 RL70000C RL75016 RL75040 RL75058B RL75223B RL75016SS RL20000B RL20001-T10 RL30000 RL35023-N5 RL90000 RL30000W RL35023SS RL1521 RL35023 NOTE: MUST BE INSTALLED PER THE NATIONAL ELECTRICAL CODE. 700 OHM 350 OHM LOAD CELL MODEL NUMBERS: 1 TO 4 350 OHM CELLS 1 TO 8 700 OHM CELLS. 10 LOAD CELL BOX 11 OPTIONAL JUNCTION NONE THIRD ANGLE PROJECTION TREATMENT - + - + - + TOL. DR.
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36 Load Cell Wiring for Hazardous Environments 9 7.9V 6.2V 4.9V 3.9V 3.2V 6.6V 5.7V 4.4V 3.6V 3.0V VOLTAGE AT LOAD CELL 8V EXC 10V EXC 700 OHM LOAD CELL BRIDGE C) MAXIMUM ALLOWABLE CABLE LENGTH IS 600 FEET. B) MAXIMUM CABLE INDUCTANCE IS 0.126mH. NOTE: A) MAXIMUM CABLE CAPACITANCE IS 0.206uF.
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Control Drawing 53414 37 HAZARDOUS LOCATION 9 11.9V 9.8V 7.3V 5.8V 4.8V 1 2 4 6 8 C) MAXIMUM ALLOWABLE CABLE LENGTH IS 800 FEET. B) MAXIMUM CABLE INDUCTANCE IS 0.160mH. NOTE: A) MAXIMUM CABLE CAPACITANCE IS 0.206uF.
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38 Load Cell Wiring for Hazardous Environments 10 7.6V 5.4V 4.1V 3.3V 1 2 3 4 C) MAXIMUM ALLOWABLE CABLE LENGTH IS 2000 FEET. B) MAXIMUM CABLE INDUCTANCE IS 0.430mH. NOTE: A) MAXIMUM CABLE CAPACITANCE IS 0.206uF.
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Control Drawing 53414 39 10 7.65V 6.51V 5.64V 5.00V 1 2 3 4 C) MAXIMUM ALLOWABLE CABLE LENGTH IS 375 FEET. B) MAXIMUM CABLE INDUCTANCE IS 0.075mH. NOTE: A) MAXIMUM CABLE CAPACITANCE IS 0.346uF.
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40 Load Cell Wiring for Hazardous Environments 9 8.40V 7.65V 6.51V 5.64V 5.00V 1 2 4 6 8 C) MAXIMUM ALLOWABLE CABLE LENGTH IS 375 FEET. B) MAXIMUM CABLE INDUCTANCE IS 0.075mH. NOTE: A) MAXIMUM CABLE CAPACITANCE IS 0.346uF.
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Control Drawing 53414 41 350 OHM LOAD CELL MODEL NUMBERS: 10 11.45V 9.55V 8.17V 7.17V 1 2 3 4 C) MAXIMUM ALLOWABLE CABLE LENGTH IS 250 FEET. B) MAXIMUM CABLE INDUCTANCE IS 0.050mH. NOTE: A) MAXIMUM CABLE CAPACITANCE IS 0.705uF.
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42 Load Cell Wiring for Hazardous Environments 9 12.70V 11.45V 9.55V 8.17V 7.17V 1 2 4 6 8 C) MAXIMUM ALLOWABLE CABLE LENGTH IS 250 FEET. B) MAXIMUM CABLE INDUCTANCE IS 0.050mH. NOTE: A) MAXIMUM CABLE CAPACITANCE IS 0.705uF.