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Measuring system
Application range (1) Gas; (2) Liquid; (3) Steam
Measured Value
Primary measured value Flow Rate
Secondary measured value
Volume flow ; (Pressure and Temperature is
available for model with compensation)
Design
Features
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 converter N Type: Pulse output without local display
A Type: 4-20mA Output without local display
B Type: Local Display; Lithium Battery Power;
No Output (Battery Part No.:
ER26500)
C Type: Local Display; 24V DC Power; 4-20mA
Output;
Optional Function:
(1) Backup Power Supply: Lithium Battery
(2) Modbus RS485
(3) Pulse Output
Connection
Flange: DN15-DN300
Wafer: DN15-DN300
Measurement Ratio Standard – 10:1
Measuring accuracy
Reference conditions Flow conditions similar to EN 29104
Medium: Water / Gas
Electrical conductivity: ≥ 300 μS/cm
Temperature: +10...+30°C / +50...+86°F
Inlet section: ≥ 10 DN
Operating pressure: 1 bar / 14.5 psig
Flow Meter Accuracy
For Liquid: 1.0% of rate
For Gas and Steam: 1.5% of rate

Operating conditions
Temperature
Process temperature T1 Level: -20...+70°C
T2 Level: -20...+250°C
T3 Level: -20...+350°C
Ambient temperature
(all versions)
Standard (with aluminum converter housing):
-10…+55°C
Storage temperature -20...+70°
Pressure
EN 1092-1 DN200…DN300: PN10
DN100…DN200: PN 16
DN15…DN80: PN 25
Other pressures on request
ASME B16.5 1/2”...8": 150 lb RF
Other pressures on request
JIS 1/2”...8": 10 K
Other pressures on request
Installation conditions
Installation Take care that flow sensor is always fully filled
For detailed information see chapter
"Cautions for Installation"
Flow direction Forward
Arrow on flow sensor indicates flow direction.
Inlet run ≥ 10 DN
Outlet run ≥ 5 DN
Measurable Flow Rate Range:
Note: The flow range as blow is for reference only. Consult the factory if you have special
requirement. Refer to the nameplate or certificate for actual flow range.
Nominal
Diameter
Liquid Gas
(mm) (in.) Flow (m3/h) Flow (m3/h)
15 1/2” 1.2 to 6.2 5 to 25
20 3/4” 1.5 to 10 8 to 50
25 1” 1.6 to 16 10 to 70
40 1-1/2” 2.5 to 25 22 to 220
50 2” 3.5 to 35 36 to 320
65 2-1/2” 6.5 to 65 50 to 480
80 3” 10 to 100 70 to 640
100 4” 15 to 150 130 to 1100
125 5” 25 to 250 200 to 1700
150 6” 36 to 380 280 to 2240
200 8” 62 to 650 580 to 4960
250 10” 140 to 1400 970 to 8000
300 12” 200 to 2000 1380 to 11000