29/10/2025
Wet Test Gas Flowmeters
Zeal Gas Flow Meters are designed for a wide variety of applications where ease
of use and accuracy is essential. They are tolerant of a multiplicity of gases, require
very little maintenance, and cover flow ranges from as low as 5 litres per hour to
9000 litres per hour. Shaft encoders and Digital Decoders are available as optional
extras.
Because of their high accuracy these meters are often used as secondary
reference standards for audit purposes. Typical areas of use include: Gas fired
appliance testing, Petrochemical – Refineries and Offshore, Pharmaceutical, Life
Sciences, and Medical Research.
All Zeal Wet Test Gas Flow Meters are supplied as standard with Single, or Seven
Point Calibration Certificates traceable to National Standards.
► Designed for low maintenance ~ unlike many inferior meters the pointer is
magnetically coupled, no Stuffing Box with Packing that can leak!
► Highest precision: Standard Flow Range ±0.1 % (Standard deviation)
Entire Flow Range ±0.2 % (Standard deviation)
► Models for use with corrosive and inert gases
► Calibration traceable to National Primary Standards
► Very low measurable flow rates
► Widest selection of measuring ranges
► Data acquisition option with real-time data monitoring
► Rugged and durable construction
Superior quality and flexibility in design is the guiding principle to
the range of meters:
• Highest test accuracy Uncertainty: Standard
Flow Range: ±0.1 % (Standard deviation)
Entire Flow Range: ±0.2 % (Standard deviation)
• Greatest choice of ranges as below
► Extended selection of Options:
• Encoder (Photoelectric Encoder, Electrical Pulsed Output)
• Pressure Transmitter
• Temperature Transmitter
• Intelligent Flow Integrator with touch screen
► Electronic package incorporating the above
optional extras for:
• Rich measurement content:
gas temperature, liquid temperature, gas
pressure, gas volume, instantaneous flow,
cumulative flow, timing and other high-precision
measurement.
• Flexible measurement methods:
Timing, fixed volume, fixed- turn measurement
• Intelligent communication:
RS485 Communication Interface, MODBUS
Communication protocol.
Intelligent Flow Intergrator and a host of
other accessories to chose from........
Typical areas of use include: Gas fired appliance
testing, Refineries and Offshore, Pharmaceutical,
Life Sciences, and Medical Research.
WET TEST GAS FLOW METERS
Order Code Drum Volume Flow Range Pressure Loss
DM3R05 0.5L 1~300 L/h, (0.016~5 L/min) ≤120Pa
DM3R /1 1L 2~600 L/h, (0.033~10 L/min) ≤120Pa
DM3R /2 2L 4~1200 L/h, (0.066~20 L/min) ≤120Pa
DM3R /2.5 2.5L 5~1500 L/h, (0.083~25 L/min) ≤120Pa
DM3R /5 5L 10~3000 L/h, (0.16~50 L/min) ≤120Pa
DM3R /10 10L 20~6000 L/h, (0.33~100 L/min) ≤150Pa
DM3R /20 20L 50~10000 L/h, (0.83~166 L/min) ≤250Pa
DM3R /25 25L 100~12000 L/h, (1.6~200 L/min) ≤250Pa
