Seametrics EM 100 Series,EM 102 Series Instructions Manual
EM 100/102
LOW-FLOW MAGNETIC FLOW METER
INSTRUCTIONS
EM 100/102 - 025
EM 100/102 - 038
EM 100/102 - 050
GENERAL INFORMATION
The EM100 is a 24 VDC-powered electromagnetic flow meter with
chemically-resistant plastic wetted parts, in nominal maximum flow rates of
4, 11, and 30 liters per minute. It uses bipolar DC technology at a frequency
high enough to allow for measurement of pulsating flows from diaphragmtype chemical metering pumps. All electronics are contained in a single
compact, chemical-resistant housing. This configuration, combined with the
standard pulse and analog outputs, makes the EM100 well suited for OEM
applications. Other applications include remote monitoring of chemical
volume or rate using a computer or PLC.
EM100/102 LOW FLOW
MAGNETIC FLOW METER
INSTRUCTIONS
SPECIFICATIONS
MATERIALS
Wetted Materials -
Housing -● ABS
POWER
ACCURACY
MAXIMUM FLUID TEMPERATURE
MAXIMUM PRESSURE
MINIMUM CONDUCTIVITY
OUTPUTS
●
Body: Kynar™ PVDF
●
Electrodes: Platinum over titanium
●
Internal Seals: Viton™
●
12-24 VDC, 180 mA
●
+/-1% of reading, above 10% of full scale
●
+/-3% of reading, below 10% of full scale
●
185º F
●
150 PSI (@ 75º F)
●
20 microsiemens
●
Frequency opto isolated 1000 pulse/liter (3785 p/g)
●
Optional 4-20 mA opto isolated passive
FLOW RANGE
SIZE NOMINAL FULL SCALE MIN. FOR 1% ACCURACY LOW FLOW CUTOFF
L/MIN. GAL./MIN. GAL./HR. L/MIN. GAL./MIN. GAL./HR. L/MIN. GAL./MIN. GAL./HR
-025 3.8 1 60 .38 0.1 6 .04 .009 .54
-038 11 3 180 1.1 .3 18 0.1 .025 1.5
-050 30 8 480 3.0 .8 48 .25 .065 3.9
1- 800-975-8153
INSTALLATION
The EM100 can be supported by its piping connections
if the piping is rigid and there is no vibration.
Alternatively, the grounding studs can be used for
mounting by inserting them through pre-drilled holes.
Note the centerline distance in the dimensional
drawing below.
MOUNTING
CAUTION: Although this meter has
an empty pipe detection function,
under certain conditions of empty
or partially-full pipe the meter may
read a flow when there is none.
If this is a hazardous condition,
mount the meter in such a way as to ensure the meter
will always be full of liquid.
Table 1: Fittings and Length
Size
-025
-038
-050
Fittings
3/8 NPT
3/8 NPT
1/2 NPT
L (Length)
3.75
3.75
4.90
MAGNETIC FLOW METER INSTRUCTIONS
L
MALE PIPE FITTING,
PVDF PLASTIC,
2 PLACES;
SEE TABLE 1
EM 100/102 SERIES
ABS HOUSING
3.75
2.00
6 FT. LONG
CONTROL CABLE,
6 CONDUCTOR
.83
www.seametrics.com
#10-24 STUDS (2), 316
.60
12 FT. LONG GROUNDING
WIRE WITH LUGS (SUPPLIED)
5.70
2.48
.62
2.000
2 EACH #10 LOCKWASHERS
& #10-24 HEX NUTS (SUPPLIED)
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