Please pay attention to the new MID directive and the associated changover to direct measurement.
The Qheat 5 US is the direct successor of the Kundo G20.
The calibration from 2019 -2024 is included in the sales price.
The counter is suitable for a heating capacity of up to 40 KW.
Technical specifications:
Nominal flow rate Qn (Qp): 2.5 m³ / h
Electromagnetic class E1
Mechanical class M2
Environmental class A
Measurement accuracy class 3
Immunity to interference: EN 610000-6-2
Interference emission: EN 61000-6-3
European Measuring Instruments Directive (MID): 2004/22 / EC
EC type-examination certificate: DE-14-MI004-PTB006
Calculator:
Temperature sensor: 5,0 mm
Installation: any
Starting limit q0: 2.5 l - 6,5 l / h
Minimum flow rate Qi: 25 l / h
Maximum flow Qmax: 5000 l / h
Ratio qp / qi horizontal 1: 1000
Nominal pressure Pn: 16 bar
Minimum system pressure to avoid cavitation (cavitation) 1 bar
Installation length: 130 mm
Connection thread on counter: approx: 1"
Ambient temperature 5 ... 55 ° C
Temperature range: 20 - 90 ° C
Maximum temperature (short-term): 110 ° C
Permissible temperature difference: 3 K 160 K
Start of counting: temperature difference: 1.0 K
Power supply: Lithium battery Nominal voltage 3.0 V
Duration:> 6 years (10 years)
Protection class: IP 65 according to EN 60529
Display levels: min. 2, up to 10 (depending on the version and options included)
Display: 8-digit LCD + pictograms
Energy display: kWh (opt. MWh, MJ, GJ)
Cable length: approx. 80 cm
Mass: 530g
(Subject to change)
Temperature sensor:
Measuring element: PT 1000 according to EN 60751
Execution: Type DS
Diameter: 5.0 mm (optional 5.2 mm)
Installation: directly via MID ball valve or indirectly via immersion sleeve
Cable length: standard 1.5m (optional 3.0m)
