User Manual

The EM100/102 are small electromagnetic low-ow owmeters
with chemically-resistant plastic wetted parts and platinum
electrodes suitable for use with a variety of chemicals. Capable
of measuring pulsating ows from diaphragm-type metering
pumps, they are designed primarily for electrically-conductive
chemical injection applications. The 1/4” and 3/8” sizes moni-
tor maximum ows of 1 and 3 gallons per minute (or 4 and 11
L/min), respectively. Barb or NPT ttings are available, and must
be designated at time of order.
The EM100 and EM102 are 12-24 Vdc powered. The EM100
comes with a standard pulse output, and the EM102 with stan-
dard pulse and analog outputs. All electronics are self-contained
in a single compact chemically-resistant housing, well suited for
OEM applications.
These meters are also appropriate for remote monitoring of
chemical volume or rate using a computer or a PLC.
GENERAL INFORMATION
FEATURES
SPECIFICATIONS*
6 ft. control cable
ABS plastic
Platinum
Viton™ (EPDM optional)
PVDF plastic
12-24 Vdc, 180 mA
+/-1% of reading, plus .005 gpm (0.02 lpm)
185˚ F (85˚ C)
150 psi (@ 75˚ F)
>20 microSiemens/cm
Frequency opto isolated 1000 pulse/liter (3785 p/g)
Materials Body
Electrodes
O-Ring
Fittings
Power
Accuracy
Max Fluid Temperature
Maximum Pressure
Minimum Conductivity
Outputs
EM100
ABS plastic
Platinum
Viton™ (EPDM optional)
PVDF plastic
12-24 Vdc, 180 mA
+/-1% of reading, plus .005 gpm (0.02 lpm)
185˚ F (85˚ C)
150 psi (@ 75˚ F)
>20 microSiemens/cm
• Frequency opto isolated 1000 pulse/liter (3785 p/g)
• 4-20 mA opto isolated passive
EM102
Strain relief
Rugged ABS plastic body
Male NPT or barb pipe ttings,
PVDF plastic
(must designate at time of order)
FLOW RANGE
SIZE LOW FLOW CUTOFF MINIMUM FLOW for spec accuracy MAXIMUM FLOW
-025
-038
L/MIN GAL/MIN GAL/HR L/MIN GAL/MIN GAL/HR L/MIN GAL/MIN GAL/HR
.04 .01 .60 .26 .07 4.2 3.8 1 60
.11 .03 1.80 .76 0.2 12 11 3 180
*Specifications subject to change • Please consult our website for current data (www.seametrics.com).