Ray Model - HYDROMETER - #1

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DATASHEET - COMPACT HEAT METER / COOLING & HEAT METER MODEL 447 TO 452 BR 447 M-MKWZ BR 450 M-MKKWZ BR 448 M-TWZ BR 451 M-TKWZ BR 449 WS-TWZ BR 452 WS-TKWZ PTB 22.12 00.02 EN 1434 22.52 00.02 22.52 01.02 EN 1434 APPLICATION o Fully electronic compact heat meter or compact cooling & heat meter with impeller scanning for recording energy and volume data. o Highly accurate recording of all billing data in a heating circuit or a cooling & heating circuit at medium temperatures up to 90 °C. o Horizontal and vertical installation, also overhead for Model 447/450. FEATURES q Electronic sensor control for recording flow rate q Nominal size qp 0.6 to qp 60 m3/h q Temperature range 5 °C...90 °C q Model 447/450 with direct electronic impeller scanning Model 448/449/451/452 with magnetic coupling for elec tronic scanning of sensor disc q Lithium battery guarantees longer lifetime than calibration interval q Optical ZVEI interface equipped as standard q Primary interface n Optional: M-Bus interface to EN 1434-3 n Optional: L-Bus output for HYDRO RADIO external n Optional: Pulse output for energy and volume for heat meter Pulse output for cold and heat energy in cool ing & heat meter (open-collector) q Adjustable reading date for billing q Rotatable integrator COMPONENTS q Volume measuring component q Integrator, contains hardware and software for measuring flow rate, temperature and energy consumption q Temperature sensor permanently connected in integrator INTEGRATOR q Integration of all necessary circuits for recording flow rate and temperature and for calculating, logging and displaying data q Compact design for simple installation of units q Single-line, 7-digit display for easy meter reading q The first memory in the cooling & heat meter, calibrated for cold q Power supply from built-in lithium battery EN 1434 22.52 06.02