T550 ULTRAHEAT BTU Meter

Description

The UH50 BTU 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.

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

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. at 25°C 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. DT 0.2 K

Temperate. difference DT 3 K to 120 K

Temperate. 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 qp

Nominal pressure PN16, PN25