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10 Technical data
The technical data of customised versions may differ from the data in these instructions.
Please observe the information specified on the type plate.
Type FMG 91 FMG 92 FMG 93 FMG 94 FMG 95 FMG 96
Measurement device characteristics
Flow range [GPM]
0.066…1.3 0.26…5.3 0.66…13.2 1.3…26.4 2.6…53 3.3…66
Accuracy 1% of reading
Repeatability 1%
Output signal
starting from [GPM]
0.02 0.07 0.27 0.52 1.05 1.3
Max. flow rate [GPM]
1.6 6.6 15.8 31.7 63.4 79.3
Response time < 100 ms
Indications red LED = Supply voltage • green LED = Flow
Output signal characteristics
Frequency output:
- Pulse rate / K-
Factor *
[pulses/gal]
15000 3000 1500 750 380 300
- Resolution *
[ml/pulse]
0.25 1.0 2.5 5.0 10.0 12.5
Square wave signal • duty cycle 50:50 - Signal shape
can be connected as PNP or NPN open collector
- Signal current ≤ 25 mA
Electrical characteristics
Supply voltage 24 VDC ±15% or 12 VDC ±15%
Power consumption 0.6 W
Electrical protection
measures
short-circuit proof • protected against polarity reversal
Electrical connection 4-pin-plug M12x1
Degree of protection IP 65 (only with a connected coupling)
Process variables
Medium to measure Water and other conductive liquids
min. conductivity of
the medium
20 μS/cm
Medium temp. 14…140 °F (not freezing)
Ambient temp. 41…140 °F
Nominal diameter DN 8 DN 15 DN 20 DN 25
Inner diameter 0.31 inch 0.55 inch 0.71 inch 0.98 inch
145 psi (68 °F) • 116 psi (104 °F) • 87 psi (140 °F) Max. working
pressure (at …)
higher pressure ratings on demand
Process connection ½ - 14 NPT ¾ - 14 NPT 1 - 11.5 NPT 1¼ - 11.5
NPT