Tecfluid M21 Series User Manual
Page 2
•
Conforms to the Directive 97/23/EC
(Pressure Equipment)
This equipment is considered to be a pressure
accessory and NOT a safety accessory as
defined in the Directive 97/23/CE, Article 1, part
2.1.3.
•
Optional Limit Switches:
- M21-AMD
Slot type inductive sensor limit switch,
according to norm DIN 19234 (NAMUR),
mounted in the meter indicator housing.
Nominal voltage: 8,2 Vdc
Conforms to the Directive 89/336/EEC (EMC)
•
Optional Transmitters:
- TEH2
Position transducer with analog output.
For 2 wire connection.
Power supply: 12 to 50 Vdc
Output signal: 4-20 mA.
Conforms to the Directive 89/336/EEC (EMC)
Technical data
•
Accuracy: ± 4% full scale value. VDE/VDI 3513
class 4.
•
Scale length: ≈ 60 mm.
•
Scales: Direct in l l/h, m
3
/h, kg/h or in %.
•
Mounting: Vertical with rising flow.
•
Connections: BSP, NPT threads.
CLAMP and sanitary screw fittings
•
Materials: EN 1.4404 (AISI-316L).
•
Working pressure:
- With valve: PN-16. Up to PN-40 on demand
- Without valve: PN-40. Up PN-400 on demand
•
Fluid working temperature:
Without limit switch or transmitter : -80ºC to 210ºC
With limit switch or transmitter : -20ºC to +180ºC
with an ambient temperature of 20 ºC
•
Mounting length:
160 mm
136 mm (horizontal inlet-outlet)
•
Indicator box:
IP-65 in plastic coated aluminium
2
Dimensions
Models:
M21/R
M21/N
Models:
Without valve
M21/HR
M21/HN
With valve
M21/HRA
M21/HNA
Models:
M21/1
M21/5
M21/7
BSP, NPT female threads
Horizontal Input-Output
DIN 11851, ISO 4200, SMS 1145
CLAMP ISO 2852
Models:
M21/3
R
A
1/4”
63
1/2”
67
3/4”
72
R
A
1/4”
63
1/2”
67
3/4”
72
DN
A
10
66
15
68
20
72
25
72
DN
A
C
6
C
7
12
66
10
34
21,3 68 19,3 34
25
72 22,6 50.5
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