QUNDIS Qheat5 User Manual

6
Conformity see EU Declaration of Conformity
Protection rating
IP protection rating IP65 according to EN 60529
Heat meter
European Measuring Instruments Directive (MID)
EC-type examination certi cate
2004/22/EC
DE-12-MI004-PTB009
Heat meter CEN EN1434
Quality of heat medium in accordance with VDI guideline 2035
in accordance with AGFW standard 510
Infl uencing quantities
Electromagnetic class E1
Mechanical class M1
Environment class A
Precision class 3
Norms and standards
Technical data
Temperature range
Heat meter
Heat meter with optional cold range
10 ... 105 °C
5 ... 105 °C
Approved temperature difference
Switch-on value temperature
difference
3 - 70 K
Heat: 1.0 K / cold
(*)
: 0.2 K (can be selected using art.
no.)
Ambient temperature 5 ... 55 °C
Power supply
Lithium battery Nominal voltage 3.0 V
Service life > 6 (opt. 10) years + 6 months reserve
Display levels
Standard min. 2, up to 10
(depending on the version and options included)
Display 8-digit LCD + pictograms
Energy display kWh <
--
> MWh (optionally MJ <
--
> GJ)
Cable length
Calculator unit -  ow sensor approx. 40 cm
(*)
Outside the Measuring Instruments Directive
Calculator unit
Flow sensor screw-type meter
Connection sizes and dimensions 0.6 m³/h 1.5 m³/h 1.5 m³/h 2.5 m³/h
Length 110 mm 80 mm 110 mm 130 mm
Connection G ¾ B G ¾ B G ¾ B G 1 B
Weight compact
detachable
668 g
820 g
575 g
709 g
650 g
802 g
743 g
895 g
Installation position horizontal/vertical
Nominal fl ow qp 0.6 m³/h 1.5 m³/h 2.5 m³/h
Minimum  ow qi horizontal
vertical
24 l/h
24 l/h
30 l/h
30 l/h
50 l/h
50 l/h
Ratio qp/qi horizontal 25:1
(*)
50:1 50:1
(*)
50:1
(*)
vertical 25:1 50:1 50:1
Ratio qs/qp 2:1
Start-up 3-4 l/h 4-5 l/h 6-7 l/h
Max. permissible operating
pressure
Min. system pressure
to avoid cavitation
1.6 MPa (16 bar)
0.1 MPa (1bar)
Temperature range 10 ... 90 °C
(*)
Versions with a higher dynamic range are also available as options
Temperature sensor
Measuring element Pt 1000 according to EN 60751
Execution Type DS
Diameter 5.0 mm - 5.2 mm - 6.0 mm - AGFW
Type of installation 5.0 mm - direct (ball valve) / indirect (immersion sleeve)
5.2 mm - direct (ball valve) / indirect (immersion sleeve)
6.0 mm - indirect (immersion sleeve)
AGFW - direct (ball valve)
Cable length Standard
Optional
1.5 m
3.0 m
Measuring element Pt 1000 according to EN 60751
Execution Type DS
Diameter 5.0 mm - 5.2 mm
Type of installation 5.0 mm - direct (ball valve) / indirect (immersion sleeve)
5.2 mm - direct (ball valve) / indirect (immersion sleeve)
Cable length Standard
Optional
1.5 m
3.0 m
Temperature sensor

QUNDIS Qheat5 Specifications

General

Brand	QUNDIS
Model	Qheat5
Category	Measuring Instruments
Language	English