Onicon FT-3500 User Manual

FT
-
3500 ELECTROMAGNETIC FLOW METER
ONICON Incorporated 727.447.6140 Page 8 onicon.com
1.5 ADDITIONAL HARDWARE THAT MAY BE REQUIRED
1.5.1 Grounding Rings
(See next section for hot tap grounding probes - for use in existing pressurized non-metallic piping systems.)
Grounding rings may be required whenever meters are installed in non-metallic or lined pipes. Grounding rings
placed before and after the meter eliminate electrical noise that will interfere with the proper operation of the
meter. ONICON provides grounding rings as an optional accessory. Grounding ring dimensional information and
part numbers are listed below. For proper operation, grounding rings are required before and after the meter.
GROUNDING RING
ORDERING INFORMATION
ANSI Class 150
316 Stainless Steel
Grounding Rings (pair)
Nominal
Size
ONICON Part
Number
1.5” 19266
2” 19267
3” 19268
4” 19269
6” 19270
8” 19271
10” 19272
12” 19273
14” 19274
16” 19275
18” 19276
20” 19277
24” 19278
30” 19279
36” 19280
42” 19281
Grounding Ring Dimensions
Nominal Size Bore A C D
1.5” 1 – 9/16 3 – 3/8 5 - 5/16 1 - 15/16
2” 2 – 1/16 4 – 1/8 6 - 1/16 1 - 15/16
3” 3 – 1/16 5 – 3/8 7 - 5/16 1 - 15/16
4” 4 – 1/16 6 – 7/8 8 - 13/16 1 - 15/16
6” 6 8 – 3/4 10 - 11/16 1 - 15/16
8” 8 11 12 - 15/16 1 - 15/16
10” 9 – 1/2 13 – 3/8 15 - 5/8 2 - 1/4
12” 11 – 9/16 16 – 1/8 18 - 9/16 2 - 7/16
14” 13 – 1/2 17 – 3/4 20 - 3/8 2 - 5/8
16” 15 – 1/4 20 – 1/4 22 - 7/8 2 - 5/8
18” 17 – 3/8 21 – 5/8 24 - 1/4 2 - 5/8
20” 19 23 - 7/8 26 - 11/16 2 - 13/16
24” 23 28 – 1/4 31 - 1/8 2 - 7/8
30” 29 34 – 3/4 38 3 - 1/2
36” 35 41 – 1/4 45 - 1/4 4
42” 41 48 52 - 1/2 4 - 1/2
D
C
3/8
5/8
Bore
A
1/4
1/8”
Typical Installation
Non-conductive Pipe
GROUNDING RING
DIMENSIONS
Note: Refer to page 21 for best
earth-ground connection

Onicon FT-3500 Specifications

General

Brand	Onicon
Model	FT-3500
Category	Measuring Instruments
Language	English