Ultraheat / Ultracold UH50 Subject to change without prior notice UH 106-101k Page 2 / 15
Meter for measurement of flow and energy in a heat or cold circuit with water using the ultrasonic
principle. Important properties are:
• Non-wearing due to non-moving parts
• Measuring range of flow 1:100 according to EN 1434, 1:1000 total range
• Any mounting orientation, in flow or return, no setting sections or flow straighteners.
• Power measurement with maximum values, tariffs selectable
• Data logger for system monitoring
• 60 monthly values
• Logbook
• Battery or mains operated
• Optical interface according to EN 62056-21
•
Big range of communication modules
• 2 module slots for using 2 communication modules coincidental
• Also operable as a flow meter, cold or heat/cold meter
• Self-diagnostics
Note: In the following text the term Meter covers the
Heat Meter as well as the Cold Meter and the Flow
Sensor if not mentioned otherwise.
Safety information:
The meter is designed for circulating water of
heating systems (not for drinking water!).
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 security 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 meter is used for energy 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 Class 2 or 3 (EN 1434)
Environment class A (EN 1434) for
indoor installation
Mechanical class M1 *)
Electrical class E1 *)
*) according 2004/22/EG EC directive
Ambient humidity < 93% r. h.
without condensation
Electronic unit
Storage temperature - 20 to 60°C
Max. altitude 2000 m above MSL
Ambient temperature 5 to 55°C
Housing degree of prot. IP 54 per EN 60529
Safety class
Line 110 / 230 V AC II per EN 61558
Line 24 V ACDC III per EN 61558
Response threshold f. ∆T 0.2 K
Temperat. difference ∆T 3 K to 120 K
Temperat. meas. range 2...180°C
Sensors
Type Pt500 or Pt100
per EN 60751
Temperature range 0...150°C
(< 45 mm overall length)
0...180°C
(> 100 mm overall length)
All volume measuring units
(Consider the details on the meter)
Mounting location return of flow
Mounting orientation any
Settling section none
Metrological class 1:100
Temperature range 5 to 130°C *)
Recommended for…
…heat application 10 to 130°C
…cooling application 5 to 50°C
*) national approvals may differ
Maximum temperature 150°C for 2000 h
Maximum overload 2.8 x q
p
Nominal pressure PN16, PN25
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