Wiring diagram - load cells in hazardous areas – Rice Lake Load Cells - Wiring for Hazardous Environments User Manual
Page 28
Control Drawing 66021
25
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 OTHERWISE 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
66021
1:2
59
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NONE
NEW
SLJ 9/15/00
0
RLSSB
RL20001HE
DRAWING REVISIONS MUST BE APPROVED
BY F
ACTOR
Y MUTUAL PRIOR TO RELEASE.
RL35083
+SEN
-SEN
11
RL35023S
RL50210A
RLETS
RLETB
RL35082
RL39123A
RL30002A
RL30001A
0-20V OR 20V FLOA
TING
LOAD CELL
(20VDC MAX.)
EXCIT
A
TION SUPPL
Y
7.6V
5.4V
4.1V
3.3V
4
3
2
1
(15V EXCIT
A
TION)
VOL
T
AGE A
T
LOAD CELL
LOAD CELLS
NUMBER OF
(1 TO 4 CELLS)
FOR 20V DC MAX. SUPPL
Y & 350 OHM CELLS
3
4
1
2
4
2
3
1
3
1
3
1
MTL764 AC
MTL764 AC
MTL766 -
MTL766 +
100 mA
11
IS/I,II,III, DIV 1 AND 2, GROUPS A-G
BRIDGE
LOAD CELL
350 OHM
NON - HAZARDOUS LOCA
TION
HAZARDOUS LOCA
TION
RL20000A
RL30000A
MODEL NUMBERS:
LOAD CELL
10
+EXC
-EXC
-OUT
+OUT
JUNCTION
OPTIONAL
BOX
BOX
BARRIER
OPTIONAL
SIGNAL, mV
OUTPUT
SENSE (RECOMMENDED)
REMOTE
RLHSS
RLSB250
MAX
-
+
+
-
+
-