Landis & Gyr Ultrasonic UH50 General Information Manual

Ultrasound heat meter

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Heat Meter Ultrasonic
Configuration Instructions

Safety information:

Do not pick up by the electronic unit
Be careful of sharp edges (thread, flange,
measuring tube)
Installation and removal must be performed
by qualified personnel only
Mounting and unmounting are only permitted
when the system is not under pressure
After installation, a tightness test must be
conducted with cold pressure
Only ever use under service conditions,
otherwise dangers can arise and the warranty
may be voided
Breaking the calibration seal voids the
warranty
The 110 V / 230 V versions must only be
connected by an electrician
The lithium batteries must be properly
returned
Lightning protection cannot be ensured; this
must be provided by the building wiring
Only one compartment for the power supply
must be equipped – do not remove the red
locking hatch

General information

The UH50 heat meter is used for heat consumption
metering in short and long-distance district heating
and in apartment buildings. It is suitable both for cold
metering (alone or in conjunction with metering
quantities of thermal energy) or for pure flowrate
metering in water systems.
Measuring accuracy
Environment class
Electronic unit
Storage temperature
Max. height
Ambient temperature
Ambient humidity
Housing degree of prot. IP 54 per EN 60529
Safety class
Line 110 / 230 V AC
Line 24 V ACDC
Response threshold f. ∆T 0.2 K
Temperat. difference ∆T 3 K to 120 K
Temperat. meas. range 2...180°C
Sensors
Type
Temperature range
UH50 Ultrasound Heat Meter
®
UH50
UH 106-101c
Class 2 or 3 (EN 1434)
A (EN 1434) for
indoor installation
- 20 to 60°C
2000 m above MSL
5 to 55°C
< 93 % rel.
II per EN 61558
III per EN 61558
Pt500 or Pt100
per EN 60751
0...150°C
(< 45 mm overall length)
0...180°C
(> 100 mm overall length)
Subject to change without prior notice
All volume measuring units
Mounting location
Mounting orientation
Settling section
Metrological class
Temperature range
Maximum temperature
Maximum overload
Nominal pressure
m³/h
mm
m³/h
l/h
0.6
110
1.2
6
0.6
190
1.2
6
0.6
DN20
1.2
6
1.5
110
3
15
1.5
130
3
15
1.5
190
3
15
1.5
DN20
3
15
2.5
130
5
25
2.5
190
5
25
2.5
DN20
5
25
3.5
260
7
35
6
260
12
60
10
300
20
100
10
DN40
20
100
15
270
30
150
25
300
50
250
40
300
80
400
60
360
120
600
Small heat meters
Overall length 110 mm
Overall length 130 mm
UH 106-101c
Version: June 2007
return of flow
any
none
1:100
10 to 130°C
150°C for 2000 h
2.8 x q
p
PN16, PN25
l/h
mbar
m³/h
m³/h
kg
2.4
150
1.5
0.5
1
2.4
150
1.5
0.5
1.5
2.4
125
1.7
0.5
6
150
3.9
1.2
1
6
160
3,8
1,2
1,5
6
160
3,8
1.2
1.5
6
160
3.8
1.2
10
200
5.6
1.8
1.5
10
200
5.6
1.8
1.5
10
195
5.7
1.8
14
65
13.7
4.3
3
24
150
15.5
4.9
3
40
100
31.6
10
4
40
165
24.6
7.8
60
100
47,4
15
100
105
77,2
24,4
160
160
100
31,6
240
115
176,9
56
Page 1 / 13
kg
3
3
3
5
5
7
8
11
13
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Summary of Contents for Landis & Gyr Ultrasonic UH50

  • Page 1: Safety Information

    ® Heat Meter Ultrasonic UH50 Version: June 2007 Configuration Instructions UH 106-101c All volume measuring units Safety information: Mounting location return of flow Do not pick up by the electronic unit Mounting orientation Be careful of sharp edges (thread, flange, Settling section none measuring tube)
  • Page 2: Installation

    Installation Based on the dimension drawings, choose a mounting location with sufficient clearance. Mount the volume measuring unit between two shut-off valves in accordance with the arrow on the volume measuring unit for the direction of flow. No inlet or outlet sections are necessary. However, Overall length 190 mm (thread) if the heat meter is installed in the shared return of two heating systems, e.g.
  • Page 3: Operating Elements

    Service loop (selection) Operating elements Service loop 1 Service loop 2 Service loop n LOOP LCD button 1 advances the display to the next loop. After the last loop, the user loop (LOOP 0) appears again. LCD button 2 displays the content of the selected service loop.
  • Page 4: Monthly Values

    Service loop 3 (“LOOP 3”) with their date stamp for 18 months on the set day of each month. Service loop 3 shows the monthly values. LCD button 1 is used to select a month out of the 18 Note: The standard time used is Central European previous months.
  • Page 5: Pulse Module

    24 V safety extra-low voltage Permissible combinations of modules Voltage 12..36 V AC or 12..42 V DC Slot for module #2 is equipped Frequency 50 / 60 Hz or DC with... Galvanic isolation 1000 V DC Pulse AM = Analog module Power consumption maximal 0.8 VA module...
  • Page 6 Parameter setting for standard pulses “Fault” constantly “non-conducting” Output mode Output value Pulses for quantity of heat (count energy) Pulses for tariff register 2 (count tariff 2) Pulses for volume (count volume) Fast pulses Pulses for tariff register 1 Note: In battery operation, a D cell is required! (count tariff 1) Pulses for the operating states For applications, such actuating controllers or as...
  • Page 7: M-Bus Module

    Data scope for fast readout: - Update after a minimum of 4 s Data scope Property number; quantity of heat; volume; actual - Update on each read-out values for power, flowrate and temperatures, and Property number; unit number; firmware version; setting the date and time.
  • Page 8: Radio Module

    Radio module Telegram type: Content: “Basic” Cumulated values and error status Cumulated previous year’s values “Previous year” and error status Pulse inputs: Radio module; Cumulated previous month’s values Channel 1, “Previous month” with internal or and error status Channel 2 external antenna Current instantaneous values, stored “Extended”...
  • Page 9: Tariff Control (Optional)

    for tariffs T2, T3, T4, T5, T6, T10, T11 and T12 Tariff control (optional) no tariff register active The following options are available for tariff control. tariff register 1 active Note: The summation of the quantity of heat and volume in the standard registers is performed tariff register 2 active independently of the tariff situation! tariff register 3 active...
  • Page 10: Log Functions

    Data logger (optional) Log functions The data logger permits the archiving of data that Logbook the user can select from a predefined set of values. In the internal logbook, metrologically relevant The data logger contains four archives whose 8 events (errors, states, actions) are stored in channels can be assigned.
  • Page 11: Order Codes (Type Number Key)

    Order codes (type number key) Mandatory data for the order designation Mandatory data for Hardware- (label plate data) dependent features Type code: U H 5 0 - X Y Y X - Y Y X X - Y X X - Y X Y X - Y Y X 1.
  • Page 12 Sensor Pt500, removable, mounted in the tube within 4. Country / where used Code a pocket Dial plate for Armenia(Armenian) Sensor Pt100, not removable, not mounted in the tube Dial plate for Austria(German) Sensor Pt100, not removable, mounted in the tube Dial plate for Bosnia-Herzegovina(Croatian) Sensor Pt100, not removable, mounting in the tube as Dial plate for Belgium(French/Flemish)
  • Page 13 Notes compliant with CEN 1434, class 2, no seal compliant with CEN 1434, class 3, no seal • Regulations on the use of heat meters must be compliant acc. to national regulations, no seal observed, see EN 1434, Part 6! compliant with CEN 1434, class 2 In particular, cavitation in the system must be compliant with CEN 1434, class 3...

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