*hy_db_440_uk_rz_03

DATA SHEET M-MKWZ COMPACT HEAT METER
MODEL 440
APPLICATION
❑ Horizontal, vertical and overhead installation ❑ Fully electronic compact heat meter of multi-jet design ❑ Highly accurate recording of all billing data in heating FEATURES
❑ Electronic sensor control for recording flow rate ❑ Non-magnetic electronic impeller scanning ❑ Measuring accuracy meets the requirements of EN 1434 ❑ Lithium battery guarantees longer lifetime than calibration ❑ Optical interface to ZVEI as standard Optional: Pulse output for energy and volume MEASUREMENT PRECISION EN 1434 CLASS 2
❑ Temperature sensors permanently connected COMPONENTS
❑ Integrator – contains hardware and software for measuring flow rate, temperature and energy consumption INTEGRATOR
HEAD LOSS DIAGRAM
❑ Integration of all necessary circuits for recording flow rate and temperature and for calculating, logging and displayingdata ❑ Compact design for simple installation of unit ❑ Single-line, 7-digit display for easy meter reading ❑ User-friendly control of various display loops ❑ Power supply from built-in lithium battery DATA SHEET M-MKWZ COMPACT HEAT METER
MODEL 440
VOLUME MEASURING COMPONENT
LOOP STRUCTURE
The volume measuring component is based on the multi-jet meter principle, which achieves very high measuring accu- racy. Its size corresponds to the maximum flow rate of the ❑ Window 1 (3 s): Total energy consumption heating circuit system. It can be used in forward or returnline. The volume measuring component complies with the TEMPERATURE SENSORS
The first loop is called the “main loop” and the second loop Type Pt 500 temperature sensors to DIN EN 60751 are used the “service loop”. The loops have no specific symbol in the as standard. The temperature sensors are permanently con- nected to the integrator and have a cable length of 0.4 m The main loop is configured to display the data for current energy and energy on reading date. The service loopdisplays the current data for flow rate, temperatures, power, ACCESSORIES/SOFTWARE
Software parametrization tool based on the M-Bus and OPERATION
A button mounted on the front panel of the meter is used toswitch to the next display. The button can be pressed for a short or long time. A short press of the button switches to the next display within a loop and a long press switches to The “Current energy” window in the main loop is the basicdisplay. OVERVIEW OF LOOPS
If the display is switched off, this basic display appears
the first time the button is pressed. The display switches
off automatically if the button is not pressed for 5 minutes.
LOOP SETTINGS
DATA SHEET M-MKWZ COMPACT HEAT METER
MODEL 440
DIMENSIONS
TECHNICAL DATA
*Zeta value applies for the stated nominal diameter TEMPERATURE SENSORS PT 500
DATA SHEET M-MKWZ COMPACT HEAT METER
MODEL 440
TECHNICAL DATA/INTEGRATOR
MWh - kWh - GJ - MJ - kW - m3/h - l/h - m3 - l 9 999 999 - 999 999.9 - 99 999.99 - 9 999.999 ORDER REFERENCES
Below mentioned types are standard products.
Extract from the full range (EN 1434 / certified class 2) The M-MKWZ range comprises heat meters to EN 1434 with nominal sizes qp = 0.6 m3/h, 1.5 m3/h and 2.5 m3/h.
❑ HYDROMETER GmbH · PO. Box 1462 · 91505 Ansbach/Germany ❑ Delivery address: Industriestraße 13 · 91522 Ansbach/Germany ❑ www.hydrometer.de ❑ Phone: +49 (0) 9 81 / 18 06 - 0 ❑ Fax: +49 (0) 9 81 / 18 06 - 605 and - 615

Source: http://www.hesperia.be/fr/docsite/hydrometer/Mod%E8le%20_440.pdf