Hach 911, User Manual

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20
Meter Installation
Figure 5 Control Drawing 940-V2
REGULATORY AGENCY
APPROVAL REQUIRED PRIOR TO CHANGING
THIS DRAWING
REF. TABLE 1 OR 2 FOR P/N
AREA VELOCITY
PROBE
TABLE 1
TABLE 2
P/N 4840 MODEL 940 FLOWMETER
P/N 4274 SAMPLER
OPTO-ISOLATED
INTERFACE
RS-232
OPTO-ISOLATED
INTERFACE
RS-232
OPTO-ISOLATED
INTERFACE
TO COMPUTER
TO SIGMA
1000
NON-
CLASSIFIED SAMPLER
-OR-
P/N 4087
P/N 4738
10 FT 3.1 m
6.56 FT 2.0 m
10 FT 3.1 m
P/N 5254200
-OR-
P/N 5254100
3-5v DC
3-5v DC
CAPACITANCE - .2nf/METER, INDUCTANCE - 1uh/METER
2. WIRING METHODS MUST BE IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE, ANSI/NFPA 70, ARTICLE 504,
HAZARDOUS (CLASSIFIED) LOCATION CLASS 1, DIV. 1, GROUP C,D
NONHAZARDOUS (CLASSIFIED)
LOCATION
-OR-
MAX LENGTH
150 FT.
MAX LENGTH
150 FT.
25 FT - 100 FT MAX 7.6m - 30.5m
INTEGRAL IN LINE VENT ASSEMBLY
P/N 4443
F.O. MODEM
P/N 4413
F.O.
MODEM INTERFACE
P/N 4741
75KHz ZERO DEADBAND
PROBE
100 FT MAX
30.5m
CUSTOMER DEFINABLE LENGTH
1. IF THE ELECTRICAL PARAMETERS OF THE CABLE ARE UNKNOWN, THE FOLLOWING DEFAULT VALUES MAY BE USED.
CANADIAN ELECTRIC CODE, C22.1-94, SECTION 18 AND ANSI/ISA RP 12.6
3. FOR MODEM INSTALLATION IN CONDUIT, MINIMUM CONDUIT DIAMETER IS 1/2 IN./1.3 cm.,
MINIMUM BEND RADIUS IS 3 IN./7.6 cm.
D
C
B
A
A
B C D
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
INTERPRET GEOMETRIC TOLERANCING PER: ANSI Y14.5M 1994
MATERIAL
DRAWN ENGINEER
DATE
NAME
TITLE:
SIZE
B
DWG. NO.
REV
WEIGHT:
SCALE: 1:2
UNLESS OTHERWISE SPECIFIED:
L
S.D S.D
12/05/05
DRAWING - CONTROL,
SHEET 1 OF 1
940-V2
DO NOT SCALE DRAWING
THIRD ANGLE PROJECTION
HACH COMPANY
5600 LINDBERGH DR. LOVELAND, CO. 80539
NOTICE--HACH COMPANY CLAIMS PROPIETARY RIGHTS IN THE INFORMATION DISCLOSED ON THIS DRAWING. IT IS ISSUED IN CONFIDENCE FOR ENGINEERING INFORMATION ONLY AND MAY NOT, IN WHOLE OR IN PART, BE USED TO MANFACTURE ANYTHING, WHETHER OR NOT SHOWN HEREON, REPRODUCED OR DISCLOSED TO ANYONE WITHOUT DIRECT PERMISSION FROM HACH COMPANY.
940 ULTRASONIC
DIMENSIONS ARE IN INCHES TOLERANCES: .X =
.03
.XX =
.01
.XXX =
.005
ANGLES =
.25
Jeff Archer
09-561
L
APPROVED
DESCRIPTION
REV
REVISION