Rice Lake Load Cells - Wiring for Hazardous Environments - Manual (Page 40)

Control Drawing 53414 37
RL70000C RL75040 RL75016 RL75058B RL75223B RL90000-100K RL75016SS
SCALE
TREA
TMENT
ANGLE 3 PLC 2 PLC
TOL.
DECIMAL
DRAWING TOLERANCES
TITLE
SHEET OF
DWG NO
THIS DRAWING AND ALL INFORMA
TION CONT
AINED HEREIN IS AND REMAINS
THE PROPER
TY OF RICE LAKE WEIGHING SYSTEMS INC. AND IS CONFIDENTIAL.
IT IS SUBMITTED AND MA
Y BE USED ONL
Y IN CONNECTION WITH RICE LAKE
WEIGHING SYSTEMS' PROPOSAL AND/OR ITS CUSTOMERS' ORDERS. IT SHALL NOT BE DISCLOSED TO OTHERS OR COPIED WITHOUT RICE LAKE WEIGHING SYSTEMS' SPECIFIC WRITTEN CONSENT AND SHALL BE IMMEDIA
TEL
Y RETURNED UPON REQUEST
.
REVISION
REVISIONS
REV
REFERENCE
INIT
DA
TE
ALL THREADS TO BE CLASS 2
UNLESS OTHER
WISE SPECIFIED
ALL DIMENSIONS APPLICABLE AFTER TREA
TMENT
UNLESS OTHER
WISE SPECIFIED
DO NOT SCALE
DRAWING
SURF
ACE
FINISH
MA
TERIAL THIRD ANGLE PROJECTION
UNITS TO BE INCHES
FOR RL
WS
USE ONL
Y
RICE LAKE WEIGHING SYSTEMS
MFG.ENG.
DR.BY
APPROVED DES.ENG. APPROVED
CKD.
WIRING DIAGRAM
LOAD CELLS IN HAZARDOUS AREAS
53414
1:1
49
--- --- ---
---
SEE NOTES
NONE
C
SBD 10/28/99
0
(1 TO 8 CELLS)
FOR 20V DC MAX. SUPPL
Y & 700 OHM CELLS
C) MAXIMUM ALLOW
ABLE CABLE LENGTH IS 800 FEET
.
B) MAXIMUM CABLE INDUCT
ANCE IS 0.160mH.
NOTE: A) MAXIMUM CABLE CAP
ACIT
ANCE IS 0.206uF
.
6 8
NUMBER OF LOAD CELLS
1 2 4
5.8V 4.8V
VOL
T
AGE A
T
LOAD CELL
(15V EXCIT
A
TION)
11.9V
7.3V 9.8V
JUNCTION
BOX
OPTIONAL
DRAWING REVISIONS MUST BE APPROVED BY F
ACTOR
Y MUTUAL PRIOR TO RELEASE.
BARRIER
BOX
OPTIONAL
LOAD CELL
MODEL NUMBERS:
HAZARDOUS LOCA
TION
INTRINSICALL
Y SAFE - CLASS I,II,III, DIVISION 1, GROUPS A-G
LOAD CELL
BRIDGE
700 OHM
-EXC +OUT +SEN -SEN -OUT
MAX
100 mA
+EXC
LOAD CELL REMOTE SENSE (RECOMMENDED) EXCIT
A
TION SUPPL
Y
(20VDC MAX.) 0-20V OR 20V FLOA
TING
OUTPUT SIGNAL, mV
2
MTL766
4
1
3
MTL764 AC MTL764 AC
4 3 4
2 1 2
MTL766
4 3
2 1
NON - HAZARDOUS LOCA
TION
3
1
+ + - - - +
11
11
9