Glossary UH50 – FOR INTERNAL USE ONLY!
Gyr GmbH
Glossary UH606-101b
Page
24
of
38
Mounting a power supply module
Instead of the battery, a power supply module (110 V / 230 V with connected cable, 24 V with
terminals) can also be installed. This is done by moving the red locking hatch to the left to open
the right-hand compartment for the power supply module. Remove the right-hand outside
rubber sleeve upward, pull out the plugs and thread the connecting cable (line voltage) of the
module through the sleeve. Insert the module in the upper right-hand corner of the electronic
unit and re-insert the sleeve with the cable from above. Connect the conductors as labeled.
Plug the other connecting cable (low voltage) onto the plug connector on the circuit board.
Note: For the 24 V AC/DC version, cable with a diameter greater than 5.0...6.0 mm should not
be used!
The 110 V / 230 V versions must only be connected by an electrician!
When replacing a unit after the calibration period has elapsed, swing out the power supply
module with the cable and sleeve, mount the new heat meter, and re-insert the module.
Because it complies with safety class II, the line power supply does not have to be
disconnected.
The
pressure loss
(pressure drop) is stated in the table below.
N
o
minal
flow
ra
te q
p
Over
all l
ength
Maximum
flow
ra
te q
s
Minimum
flow
rate
q
i
Re
sp
onse
th
resh
ol
d
(v
ariable)
Pressur
e
lost at
q
p
Kv flow
rate
at
∆
p 1 b
a
r
Kv flow
rate
at
∆
p 100
mbar
Wei
ght th
rea
d
Weight
fl
ange
m³/h
mm
m³/h
l/h
l/h
mbar
m³/h
m³/h
kg
kg
0.6
110
1.2
6
2.4
150
1.5
0.5
1
0.6
190
1.2
6
2.4
150
1.5
0.5
1.5
0.6
DN20
1.2
6
2.4
125
1.7
0.5
3
1.5
110
3
15
6
150
3.9
1.2
1
1.5
130
3
15
6
160
3.8
1.2
1.5
1.5
190
3
15
6
160
3.8
1.2
1.5
1.5
DN20
3
15
6
160
3.8
1.2
3
2.5
130
5
25
10
200
5.6
1.8
1.5
2.5
190
5
25
10
200
5.6
1.8
1.5
2.5
DN20
5
25
10
195
5.7
1.8
3
3.5
260
7
35
14
65
13.7
4.3
3
5
6
260
12
60
24
150
15.5
4.9
3
5
10
300
20
100
40
100
31.6
10
4
10
DN40
20
100
40
165
24.6
7.8
7
15
270
30
150
60
100
47.4
15
8
25
300
50
250
100
105
77.2
24.4
11
40
300
80
400
160
160
100
31.6
13
60
360
120
600
240
115
176.9
56
22
Prescalers
The calibrated consumption values (quantity of heat and volume) and the tariff registers (TR1,
TR2, TR3) are displayed on the LCD and represented in the data telegrams with a certain
resolution only. Further internal prescalers are therefore available for testing the
UH50
. These
exist separately for normal mode (“Nb”) and test mode (“Pb”) and can be read out by “Eb
(calibration mode) telegram”. The can be used, for example, to start normal mode
measurements in calibration mode and initialize the associated prescalers.
Pulse output
see
tariff pulses
The pulses output can be derived from the standard registers (W, V), the tariff registers (TR1,
TR2) or the mode.
A heat meter with a
removable control cable
may be separated during the installation. When
installation is done be sure that only paired parts (volume part, calculator) are connected
together.
R
