1.1 Product Description
HTMC LDE electromagnetic flow meters are intended for fluid measurement in most industries including
water, wastewater, food and beverage, pharmaceutical and chemical.
……….
There are two basic components of electromagnetic flow meter: 1)The Detector, which includes the flow
tube, isolating liner and measuring electrodes, and 2) The Converter, which is the electronic device
responsible for signal processing, flow calculation, display and output signals.
The materials of construction of the wetted parts (liner and electrodes) should be appropriate for the
specifications on the intended type of service. Review of the compatibilities consistent with the
specifications is recommended.
All electromagnetic flow meters are factory tested and calibrated. A calibration certificate is included in theshipment of each meter.
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1.2 Unpacking and Inspection 
Upon receipt, examine your meter for visible damage. The meter is a precision measuring instrument and
should be handled carefully. Remove the protective plugs and caps for a thorough inspection. If any items
are damaged or missing, contact us.
Make sure the flow meter model meets your specific needs. For your future reference, it might be useful to
record this information on nameplate in the manual in case it becomes unreadable on the meter.
Transportation and Handling
Do not lift the detector from the Converter
housing, the junction box or the connecting cable.
Use lifting lugs for larger sizes is recommended.
Very large meter sizes are packed and crated with
the meter laying on its side for shipping safety
and stability reasons. In order to lift the meter in
vertical position, it's recommended to use a sling
rigged method as shown below.
If using a forklift, do not lift the detector from its
body between the flanges. The housing could be
accidentally dented and permanent damage
could be caused to the internal coil assemblies. 
Warning: NEVER introduce the forklift,
chains, wire slings or any other sharp object
inside the flow tube for lifting or handling
purpose. This could permanently damage the
isolating liner and could render the meter
inoperable.
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2. TECHNICAL DATA 
Measuring system 
Measuring principle   Faraday's law 
Application range   Electrically conductive fluids 
Measured Value  
Primary measured value   Flow velocity 
Secondary measured value   Volume flow 
Design  
Features   Fully welded maintenance‐free sensor 
  Flange version with full bore flow tube 
  Standard as well as higher pressure ratings 
  Large diameter range from DN25...3000 with
r ed liners approved for drinking water 
  Industry specific insertion lengths 
Modular construction   The measurement system consists of a flow
sensor and a signal converter. It is available as
compact and as separate version. 
Compact version   With 511B converter: 110‐240Vac Power 
  With 521B converter: 18‐36V DC Power
  With W800L/W800W: Battery Power 
Remote version   In wall mount version with 211B converter (110‐
240Vac) or 221B converter (18‐36V DC)
With W800F converter: Battery Power
Measurement range   ‐12...+12 m/s / ‐40...+40 ft/s 
Measuring accuracy 
Flow conditions similar to EN 29104 
Medium: Water 
Electrical conductivity: ≥ 300 μS/cm 
Temperature: +10...+30°C / +50...+86°F 
Inlet section: ≥ 5 DN 
Reference conditions 
Operating pressure: 1 bar / 14.5 psig 
Flow Meter Accuracy  Standard: 0.5% of rate
  Optional: 0.2% of rate
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Operating conditions 
Temperature  
Hard rubber liner: ‐5...+60°C 
Polypropylene liner: ‐5...+90°C
Process temperature 
PTFE liner: ‐5...+120°C
Standard (with aluminum converter housing):   Ambient temperature
 (all versions)   ‐20…+60°C (Protect electronics against self‐
heating with ambient temperatures above 55°C) 
Storage temperature   ‐20...+70°
Pressure
DN2200...3000: PN 2.5 
DN1200...2000: PN 6 
DN200...1000: PN 10 
DN65...150: PN 16 
DN10...50 : PN 40 
 EN 1092‐1 
Other pressures on request 
ISO insertion length   Optional for DN15...600 
1...24": 150 lb RF   ASME B16.5 
Other pressures on request 
DN10...1000 / 2...40": 10 K   JIS 
Other pressures on request 
Pressure drop   Negligible 
Fluid  
Physical condition   Conductive liquids 
Electrical conductivity   ≥ 5 µS/cm 
Permissible gas content
(volume) 
≤ 5% 
Permissible solid content
(volume) 
≤ 70% 
Installation conditions 
Installation   Take care that flow sensor is always fully filled 
  For detailed information see chapter "Cautions
for Installation" 
Flow direction   Forward and reverse 
  Arrow on flow sensor indicates positive flow
direction. 
Inlet run   ≥ 5 DN 
Outlet run   ≥ 2 DN 
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Materials 
Sensor housing   Sheet steel, polyurethane coated 
  Other materials on request 
Measuring tube   Austenitic stainless steel 
Flanges   Carbon steel, polyurethane coated 
  Other materials on request 
Liner   Standard
  DN10...40: F46
  DN50…300: PTFE or Hard Rubber
  DN300...2200: Hard rubber 
Connection box (only remote
versions) 
Standard: polyurethane coated die‐cast
aluminum 
Measuring electrodes   Standard: Stainless steel 316L
  Option: Hastelloy C, titanium, tantalum
  Other materials on request 
Grounding rings   Standard: Stainless steel 
Option: Hastelloy C, titanium, tantalum 
Grounding electrodes (option)   Same material as measuring electrodes. 
Process connections
Flange  
EN 1092‐1   DN25...3000 in PN 6...40 
ASME   1…120" in 150 lb RF 
JIS   25…1000 in 10...20K 
Design of gasket surface   RF 
  Other sizes or pressure ratings on request