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MADDALENA GRADUS User Manual

Electronic heat cost allocator
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Electronic Heat Cost Allocator
GRADUS
User Manual
Rev. 1 02/15

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Summary of Contents for MADDALENA GRADUS

  • Page 1 Electronic Heat Cost Allocator GRADUS User Manual Rev. 1 02/15...

  • Page 3: Table Of Contents

    GENERAL MOUNTING INFORMATION ......................3 DISPLAY / DISPLAY CYCLE .......................... 4 Display before and during installation ........................4 Default display of GRADUS after installation ......................5 Further status displays ............................5 CONSUMPTION CALCULATION ........................6 DETECTION OF ACCUMULATED HEAT ......................6 PLUG ON / MANIPULATION DETECTION ....................

  • Page 5: Application And Function

    PPLICATION AND UNCTION This heat cost allocator is designed for the measurement of the consumed thermal energy on radiators and pipes in a heating system. ONTENTS OF ACKAGE 40 electronic heat cost allocators 1 package with 40 seals 1 mounting manual The heat conductors have to be ordered separately! A package of heat conductors contains 40 pieces.

  • Page 6: Display / Display Cycle

    If a remote sensor is installed appears for about 3 seconds “CONF FF” (fig 1: C). Then the display cycle starts. If a start date for the start of counting is programmed in GRADUS then “GO dd.mm” (e.g. “GO 01.09”) appears on the display and remains until reaching the starting month (fig 1: D).

  • Page 7: Default Display Of Gradus After Installation

    5.2 Default display of GRADUS after installation The following image shows the default display cycle of Engelmann factory setting. Figure 2: Display cycle (factory setting) 1. Current consumption (R = radio version) 0 0 0 0 0 0 2. Billing date (AN = annual/ 1.

  • Page 8: Consumption Calculation

    O P E If the GRADUS is opened outside the mounting time frame (waiting period), appears “OPEN C” (C = Contact) in the display cycle. Here, it is assumed that there is a manipulation of the GRADUS. (please see also 8).

  • Page 9: Plug On / Manipulation Detection

    If the reset is performed on the removed GRADUS, the “STBY” appears on the display and will persist until the re- install of the device. After re-install the display briefly shows “CONFIG” / “CONF FF” and the device continue with recording data by displaying standard display cycle.

  • Page 10: Interfaces And Options

    Battery lifetime, estimated 11 years + 1 year storage Data storage 132 monthly values and 132 semi-monthly values Display 7 digits + special characters Interfaces Standard: infrared Optional: wireless M-Bus Remote temperature sensor Sensor type NTC preaged Length of cable Dimensions of cover height 26 mm / width 12 mm / depth 10 mm 10 I...

  • Page 11: Activation Of The Radio Interface

    11 H INT FLAGS The GRADUS recognizes two sorts of display modes for hints: the integrated hint mode and the separate hint mode. In the integrated hint mode the hints are added to the display loop as supplementary indicators. Concerning the separate hint mode the display switches from the operating mode into this hint mode and the appendant hints are shown permanently in the display.

  • Page 12: Hint Description

    (max. one hour). Lifetime > 10 years / > 11 years No influence to the calculation Long operating time A removal of the GRADUS from the No influence to the calculation A removal of the GRADUS from the heat conductor was detected...

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