MADDALENA GRADUS User Manual Download Page 12

 
 

10 

When the hints 

lifetime > 10 years / > 11 years

 and 

remote sensor is mounted

 are logged, the date will not be 

recorded. 
 

11.1

 

Hint description 

Hint

 

Effect

 

Possible cause 

Memory error; during access to 
database an error occured 

No calculations are carried out. The 
register for consumption is not 
being updated. 

Defective  component 

Unexpected reset by POR, RAM-
parity, access violation 

No influence to the calculation 

The measurements since the last 
storage of data in the E

2

PROM are 

lost (max. one hour). 

Lifetime > 10 years / > 11 years 

No influence to the calculation 

Long operating time 

A removal of the GRADUS from the 
heat conductor was detected 

No influence to the calculation 

A removal of the GRADUS from the 
heat conductor 

Break of one of the measuring 
sensors 

No calculations are carried out. The 
register for consumption is not 
being updated. 

A defect on the calculator circuit 
board 

Short circuit of one of the 
measuring sensors 

No calculations are carried out. The 
register for consumption is not 
being updated. 

A defect on the calculator circuit 
board 

Reset by watch dog timer 

No influence to the calculation 

The measurements since the last 
storage of data in the E

2

PROM are 

lost (max. one hour). 

Remote sensor is mounted 

No influence to the calculation 

Remote sensor was mounted. 

12

 

D

ECLARATION OF 

C

ONFORMITY

 

 For the product described in this document we confirm, as the manufacturer, that it meets the fundamental 
requirements according to the Directive 1999/5/EC (R&TTE). 
The complete signed declaration can be found at 

www.engelmann.de

13

 

M

ANUFACTURER

 

Engelmann Sensor GmbH 
Rudolf-Diesel-Str. 24-28 
69168 Wiesloch-Baiertal 

 Germany 

14

 

C

ONTACT

 

Maddalena S.p.A. 
Via G.B. Maddalena, 2/4  
33040 Povoletto (UD) 

 Italy 

Tel.: +39.0432.634811 
Fax.: +39.0432.634820 

www.maddalena.it 

 

Summary of Contents for GRADUS

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

Page 2: ......

Page 3: ...Further status displays 5 6 CONSUMPTION CALCULATION 6 7 DETECTION OF ACCUMULATED HEAT 6 8 PLUG ON MANIPULATION DETECTION 7 9 TECHNICAL DATA 7 10 INTERFACES AND OPTIONS 8 10 1 Optical infrared interface 8 10 2 Radio interface wireless M Bus optional 8 10 2 1 Technical data radio 8 10 2 2 Radio configuration 8 10 2 3 Activation of the radio interface 9 11 HINT FLAGS 9 11 1 Hint description 10 12 DEC...

Page 4: ......

Page 5: ...s Instruments with activated radio function are not allowed on air freight The temperature sensor cables must not be kinked rolled up lengthened or shortened To clean the heat cost allocator use a slightly moist cloth To protect against damage and dirt the heat meter should only be removed from the packaging directly before installation Instruments which have been replaced or exchanged must be dis...

Page 6: ...art 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 After the completion of the internal configuration or upon reaching the preset starting month the display cycle starts 5 2 und 5 3 Make sure that the GRADUS is permanently attached to the required mounting location Make sure that the EHK...

Page 7: ...dard 7 segments elements have been expanded by including more segments to increase the readability of the status indicators These are visible in the segment test and are shown below 5 3 Further status displays The following status displays are shown for information purposes in addition to the standard display cycle when parameterized or a mode changes is initiated by internal algorithm 1 sensor mo...

Page 8: ...6 CONSUMPTION CALCULATION Due to the radiator exponent is part of the calculation algorithm and thus a basis for calculating of the counting process of the GRADUS the following formula is used to calculate the consumption value consumption value display value Kc KQ 7 DETECTION OF ACCUMULATED HEAT The detection of accumulated heat is carried out by the internal calculation algorithm Here are severa...

Page 9: ...for installation from the heat conductors or fitted again after the end of the mounting time frame the display shows OPEN C in the display cycle Here manipulation is suspected The OPEN C hint persists after re install the GRADUS and will appear in the display cycle By using the Device Monitor software register parameterization reset removal detection the hint OPEN C can be reset The display briefl...

Page 10: ...arly LTE mobile radio standard wi fi routers baby monitors remote control units electric motors etc In addition the construction of the building has a strong influence on the transmission range and coverage The factory setting of the clock in the heat cost allocator is standard winter Central European Time GMT 1 There is no automatic changeover to daylight savings summer time The radio function is...

Page 11: ...ting mode into this hint mode and the appendant hints are shown permanently in the display The hints are shown generally with an H put in front and the hint code for example H 02 The device recognizes eight hint causes possible that can also occur in combination with each other Hint Description H 01 Memory error during access to database an error occurred H 02 Unexpected reset by POR RAM parity ac...

Page 12: ...arried out The register for consumption is not being updated A defect on the calculator circuit board Short circuit of one of the measuring sensors No calculations are carried out The register for consumption is not being updated A defect on the calculator circuit board Reset by watch dog timer No influence to the calculation The measurements since the last storage of data in the E2 PROM are lost ...

Reviews: