9
Operating instructions for KME flow meter for compressed air and gases
3 Mechanical installation
3.1 Installation dimensions
Gauge
mounting
block
thread
r
p
or NPt
DN15
1/2"
DN20
3/4"
DN25
1"
DN32
1)
1-1/4ʺ
DN40
1-1/2ʺ
DN50
2ʺ
1) only R
p
thread
Internal thread:
according to EN 10226 (old DIN 2999)
or NPT
Internal thread:
according to EN 10226 (old DIN 2999)
or NPT
M12 x 1
M12 x 1
50
88,5
84,5
123
100
100
50
80
KMe-715/-720/-725
KMe-732/-740/-750
3.2 Choosing the appropriate mounting location
•
The mounting location site shall be easily accessible and free of vibration.
•
A minimum clearance of 150 mm (5.9”) shall be observed around the mounting location for
installing / removing the transmitter unit of the E741.
• The ambient temperature shall not exceed the specified limits. Consider also the possible heat
radiation.
•
Air (medium) purity at the mounting location shall comply to ISO 8573-1:2010, at least Class
3.4.4.
•
The medium and the ambient conditions at the mounting location shall be non-condensing.
•
In compressed air networks, KME shall be installed after the air dryer. In the absence of a dry-
er, KME shall be installed after the condensate separator and appropriate filters.
• Observe the flow direction in the pipe.
•
Observe the recommended inlet and outlet path length. These are relevant for measurement
accuracy as specified in the KME data sheet.
• KME shall be located as far as possible from flow disturbances, for instance at an
appropriate distance before valves.
