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Instruction  

INFOCAL 8

DEN-SMT/PL 

 

 

 

 

 

VI.SH.L1.02 

 

 

               Danfoss District Enrgy

8

9.5   Pulse input function module

Module for two additional meters. Pulse input 1 is marked as “I1-   ”, 

input 2 with “I2 -   “. Pulse inputs can be programmed (IZAR@SET) with 

a value: 1, 2.5, 10, 25, 100, 250, 1000, 2500 litre per pulse.

•  Pulse transmitter must be electrically isolated, e.g. Reed contact

•  Possible units are all the energy units available in the meter, the 

volume unit m³ or no unit.

Data is accumulated separately in registers; can be read in the dis-

play  as IN1 and IN2 and can be transferred via the communication 

modules.

9.6   Pulse output function module

The module is equipped with 2 pulse outputs, which can be freely 

programmed using the IZAR@SET software. The outputs are marked 

as “O1 -   “ and “O2 -   “ on the terminal strip and as Out1 and Out2 

on the display.

•  External supply: Vcc = 3-30 VDC

•  Output current ≤ 20 mA with a residual voltage of ≤ 0.5 V

•  Open Collector (Drain)

•  Electrically isolated

•  Output 1: f ≤ 4 Hz Pulse duration: 125 ms ±10 % 

Pulse pause: ≥ 125 ms –10 %

•  Output 2: f ≤ 100 Hz Pulse duration pulse/pause ~1:1

•  The volume pulse rate can be freely programmed

•  Standard: last digit in the display

9.7   Combined function module (IN/OUT)

The combined module has 2 inputs and 1 output.

See chapter 8.5 for the specific characteristics on the pulse input. 

A 3 VDC voltage is connected to the “+” terminal and can be used as

the supply for a flow sensor.

The pulse output has the same characteristics as pulse output 1 speci-

fied under 8.6. It is not, however, electrically isolated.

9.8   Analogue output function module

The module has 2 passive analogue output connections which are 

freely programmable using the IZAR@SET software. On the terminal 

strip, the electrically isolated outputs “1” and “2” are marked and the 

polarity is indicated (“+” and “–”).

•  Passive, external power supply: 10…30 VDC

•  Current loop 4 … 20 mA whereat 4 mA = 0 value; 

20 mA = programmable maximum value

•  Overload up to 20.5 mA, then residual current

•  The module displays errors with 3.5 mA or 22.6 mA 

(programmable)

•  Output values: power, flow, temperatures

9.9   Test output

The internally located test output is intended for testing 

laboratories. The manufacturer supplies two special cables:

1. Volume testing pulse

2. Energy testing pulse

Please refer to the inspection and testing manual for further 

specifications (pulse rate, pulse duration/pause, pulse frequency).

Input frequency

≤ 8 Hz

Min. pulse duration

10 ms

Input resistance

2.2 MΩ

Terminal voltage

3 VDC

Cable length

up to 10 m

                                

                                

                                              

                                      

                                       

The module is connected with the meter electronics by means of

a ribbon cable. The separate plug connector on module slot 2 is

necessary for the perfect functioning of the analogue outputs.

Ensure that the temperature sensors (measurement resistances)

remain in contact without interruption during energy verification.

 

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Summary of Contents for INFOCAL 8

Page 1: ...ng personnel trained in the installation and use of electrical equipment and familiar with the Low Voltage Directive The specified absolute temp measuring range is 0 90 C 105 C 180 C The temperature range depends on calculator variant The exact temperature range is shown on the type plate The specified operating ambient conditions are 5 55 C max 93 rel humidity Protection class IP54 Ambient temper...

Page 2: ... personnel Initial operation is to be carried out and recorded after installation For medium temperatures of more than 90 C or if Twater Tambient for application as cooling meter or heat meter with cooling tariff the calculator must be removed from the flow sensor and installed a sufficient distance away from heat sources A wall holder supplied with meter or a space holder optional is available fo...

Page 3: ...5 or 90 angle The tip of the pocket must point in the opposite direction to the direction of flow and must be located in the middle of the pipe The temperature sensors must be sealed after installation in the pockets Connect the sensor cables to terminals as shown below For 2 wire connection to terminal 5 6 and 7 8 For 4 wire connection to terminal 1 5 6 2 and 3 7 8 4 Calculator type Sensor markin...

Page 4: ...ication Chilled water application TH TC TC TH Flow meter connection with pulse input and if required with power supply at the terminals 9 Vcc 10 flow pulse 11 Gnd of the calculator Pulse frequency 200 Hz Pulse duration 3 msec Pulse rate in display Loop 3 INFO In0 Flow sensor connection Sensor marking External Vcc 3 6 V 9 Open collector 10 Ground 11 5 0 Pulse input volume pulses Calculator heating ...

Page 5: ...ime are still updated but none of the measuring functions work incl the flow rate measurement Communication still functions over the optional M Bus RS485 and RS232 modules or the optical interface but reduces the life of the backup battery The radio function is switched off in the event of power supply failure Caution Used batteries must be disposed of at suitable waste collection points Risk of e...

Page 6: ...propriate slot and carefully connect the pre formed ribbon cable at both ends 3 Close the lid and check the calculator for correct operation by pressing the push button loop 3 Renew the seal of the housing lid if the calculator functions correctly The relevant ESD regulations electrostatic discharge must be observed No liability is accepted for damage especially to electronic circuits resulting fr...

Page 7: ...ve By Fixed Network For problematic radio installations shield the external radio module set can also be used 9 2 M Bus communication module The M Bus communication module is a serial interface for communi cation with external devices M Bus control centres e g IZAR CENT ER A number of meters can be connected to a control centre The module contains a 2 pole terminal strip with terminals marked 24 2...

Page 8: ... A 3 VDC voltage is connected to the terminal and can be used as the supply for a flow sensor The pulse output has the same characteristics as pulse output 1 speci fied under 8 6 It is not however electrically isolated 9 8 Analogue output function module The module has 2 passive analogue output connections which are freely programmable using the IZAR SET software On the terminal strip the electric...

Page 9: ...r Accounting date 1 previous year energy Accd 1L 2 4 Accounting date 2 Accounting date 2 energy Accd 2A 2 5 Accd 2 Future accounting date 2 2 6 Accounting date 2 previous year Accounting date 2 previous year energy Accd 2L 2 14 Accounting date 2 previous year Pulse input 2 Pulse input volume 2 Loop Sequence Window 1 Window 2 Window 3 3 Info loop 3 1 Current date Current time 3 2 SEC_Adr Secondary ...

Page 10: ...ted by pressing the button The error code display appears again automatically if the button is not pressed for approx 4 minutes The error display disappears automatically as soon as the cause of the error has been cleared All errors present longer than 6 minutes are saved in the error log Error code Description C 1 Basic parameters saved in flash or RAM have been lost E 1 Temperature range outside...

Page 11: ...Instruction INFOCAL 8 Danfoss District Energy VI SH L1 02 DEN SMT PL 11 ...

Page 12: ...Instruction INFOCAL 8 VI SH L1 02 Produced by Danfoss A S 12 2014 ...

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