Engelmann Sensor GmbH, Rudolf-Diesel-Straße 24-28 , 69168 Wiesloch-Baiertal, Germany
Phone.: +49 (0)6222-9800-217 , Fax: +49 (0)6222-9800-50, E-Mail: [email protected], www.engelmann.de
Article-No. 1080700010 - 2011-04-01
Engelmann
T h e h e a t m e t e r s p e c i a l i s t s
®
Page 2
Straight pipe section
none required
Accuracy class
1:100 or 1:50
Temperature range
•
recommended for heat
•
recommended for cooling
5
0
C to 130
0
C *)
10
0
C to 130
0
C **)
5
0
C to 50
0
C
*) national approvals may vary
**) Short model 150 mm only from 20
0
C to 130
0
C
Max. medium temperature
150
0
C for 2000 h
Protection rating
fl
ow sensor
IP 54 for heat or
IP 65 for cooling (optional for
heat meter)
Maximum overload
2.8 x q
p
Nominal pressure
PN 16, PN 25
Electronics:
Storage temperature
-20
0
C to 60
0
C
Ambient temperature
5
0
C to 55
0
C
Ambient humidity
< 93 % rel. humidity
Flow sensors:
(Please note the specifi cations on the sensor itself!)
Flow sensor
Pulse output type
electromechanical switch (reed contact)
class OA as per EN1434-2:2007
passive electronic current sink (open
collector) class OC as per EN1434-2:2007
Installation point
standard
in return
fl
ow
optional
in forward
fl
ow
(only for heat
meter),
calculator must be set in
factory
Mounting position
Heat meter
any
Mounting position
Cooling meter
see section 6: Installation for Cooling Applica-
tions
4.4 Small fl ow sensors
Nominal flow
q
p
Installation length
Connection
Max. flow
q
s
Min. flow
q
i
Activation limit
(v
ariable)
Pressure drop
at
q
s
Kv-
D
u
rch
fl
u
ss
bei
q
1 bar
Kv-
F
low
at
q
100 m
bar
Weight
m
3
/h
mm
G / DN m
3
/h l/h
l/h
mbar
m
3
/h
m
3
/h
kg
110
G ³/
4
1
G 1
1,5
DN 20
125
1,7
3
110
G ³/
4
150
3,9
1
DN 20
3
130
DN 20
195
5,7
3
G 1
1
/
4
3
DN 25
5
G 1
1
/
4
3
DN 25
5
6
150 G 1 1/4 12
60
24
240
12
4,5
3
200
100
32
10
4
DN 40
165
25
7,8
7
200
115
44
14
5
270
100
47
15
8
25
300
DN 65
50 250
100
105
77
24,4
11
40
300
DN 80
80 400
160
160
100
31,6
13
60
360
DN 100 120 600
240
115
177
56
22
60
2,6
300
G 2
8,8
40
130
28
15
DN 50
30 150
190
10
20 100
14
60
14
4,5
3,5
260
7
35
25
10
1,5
1,2
160
3,8
1,5
24
180
14
2,5
G 1
6
260
12
60
5
4,5
200
5,6
1,8
1,5
3
15
6
130
190
G 1
0,6
190
1,2
6
2,4
150
1,5
0,5
