Integra CALEC ST II Installation And Operation Manual

Installation and operation manual

CALEC® ST II

Table of contents

1 Safety 2 2 Structure of a measuring point 4 3 Scope of delivery, installation accessories 5 4 Installation 6 5 Controls and operation 32 6 Maintenance and repair 49 7 Disposal 49 8 Technical specifications 50 9 CE Declaration of Conformity 54 10 Appendix 55

VD 3-126e 01.2018

1 Safety

1.1 Intended use

CALEC® ST II is a high precision instrument designed for the collection, analysis, presentation and transmission of information. Improper or non-intended use of the device may compromise operational safety. We accept no liability for any resulting damages.

1.2 Notes on safety instructions and symbols

The device has been designed to fulfil modern safety requirements. It has been tested and delivered in a condition that ensures safe operation. However, improper or non-intended use of the device may result in it becoming dangerous. Please always pay attention to the safety instructions in this manual which are accompanied by the

following symbols:

CALEC® ST II

WARNING!

WARNING indicates an action or measure which, if performed incorrectly, can cause potentially life-threatening injuries and lead to a high safety risk. Always follow the instructions and proceed with caution.

NOTE!

NOTE indicates an action or measure which, if performed incorrectly, may have an indirect effect on the operation of the device, or trigger an unexpected response.

COMMENT!

COMMENT provides information and recommendations for efficient and trouble-free operation.

CAUTION!

CAUTION indicates an action or measure which, if performed incorrectly, can cause minor injuries and/or incorrect operation or destruction of the device. Always follow the instructions.

REFERENCE!

REFERENCE refers to additional documents.

CALEC® ST II

1.3 Installation, startup and operation

General hazards and warnings

This device is intended for permanent installation with a fixed electrical connection. The installation, connection to the electricity supply, startup and maintenance must be carried out by trained, qualified personnel who are authorised to perform this type of work. The respective specialist personnel must have read and understood this installation and operation manual, and follow the instructions contained therein. The operator must ensure that the measuring system is wired correctly in accordance with the wiring diagrams. Contact protection is deactivated when the cover is removed (risk of electric shock). The housing may only be opened by qualified personnel.

Disconnect the power supply prior to electrical installation, and ensure that it cannot be reconnected without your consent.

Pay attention to the following points during installation:

• Voltage, operating data

• Maximum transmission length

• Cable cross-section and length

• Ambient temperature and installation position

1.4 Technical progress

We reserve the right to modify the technical specifications without prior notice.

WARNING!

Danger of electrocution! Touching or gripping live electrical parts can cause an electric shock, which may result in burns, paralysis or death.

• The device should only be opened, installed or repaired when the power has been switched off.

• Only specialist technicians are authorised to work on or with mains voltage. They must comply with the applicable regulations.

• Only the intended terminals should be used to connect the device to the mains supply.

REFERENCE!

Latest version of this manual! The latest version of this manual is available at: http://www.aquametro.ch/qr/prod/calec-st/11111.html

CALEC® ST II

2 Structure of a measuring point

A complete measuring point for thermal energy consists of the CALEC® ST II energy calculator, paired temperature sensors and flow sensor.

The applicable regulations and recommendations for installation and operation must also be complied with, e.g. Section 6 of EN 1434, and the recommendations of professional associations such as the „Merkblätter der Fernwärmeversorgung“ [fact sheets for district heating] issued by the German Energy Efficiency Association for District Heating, Cooling and CHP (AGFW). The installation of control immersion sleeves is mandatory in some countries (e.g. in France after FDE 39-007).

NOTE!

Type of temperature sensor, pulse value, installation side! Check whether the temperature sensor type (e.g. Pt100), pulse value and installation side (cold, hot) of the flow sensor match the nameplate on the CALEC® ST II.

NOTE!

Calibrated device! Depending on the version, the CALEC® ST II is a calibrated measuring device (see calibration markings on the nameplate). Calibration is rendered invalid if any changes are made to the calibration parameters. The parameters can only be accessed once the verification seal has been destroyed. Parameters related to the calibration of calibrated devices can only be adjusted by the manufacturer or by a designated calibration centre. The commissioning of a calibrated

measuring point must be made by an authorized organisation according to the valid regulations.

After commissioning of the meter, the components (the calculator, the flow meter and two

temperature sensors) must be sealed.

CALEC® ST II

3 Scope of delivery, installation accessories

The supplied assembly and connection accessories are located on the top of the housing: The yellow piercing awl 1) can be used to pass the cables through the membrane seals easily

The strain on the wire can be eased using the white strain-relieving discs 2).

The two red plugs 3) are used to secure the two screws in the front cover. Unauthorised opening of the device can be detected if these safety caps have been installed.

Removing the protective caps: Pierce with a sharp tool and lever them out. This damages the cap, which needs to be replaced.

NOTE!

Calibrated device! The unit can be damaged if not stored correctly! This precision measuring device can be damaged by heat, moisture, dirt and vibration,

which can cause malfunctions.

The device must be stored in accordance with the specifications and only removed from

the packaging immediately prior to installation.

CALEC® ST II

4 Installation

The CALEC® ST II can be mounted on a mounting rail or on a flat wall. Suitable mounting rails are available as an accessory (article number 19838). Please refer to the last page of this document for a hole template for both installation types.

Device dimensions

Hole dimensions for wall mounting Clear height (for clipping on the housing cover)

CALEC® ST II

Tools, assembly materials

(Not included in the scope of delivery)

Opening the housing

3 x Ø

3 x Ø6

Torx T15

Ø6

3 x 4.3 x 12

3.5 x 0.6

CALEC® ST II

Unit design

The front cover can be locked into the lower section of the housing

The connection diagram is located on the inside of the front cover

The motherboard can be accessed by removing the plug-in totaliser

Motherboard with terminals and microswitches for configuring inputs and outputs

Clip-on holder for mounting rail

CALEC® ST II

4.1 Installation

Installation instructions

Select the installation point:

• protected from moisture, heat, direct sunlight and damage

• easily accessible for reading, operation and installation

• at a sufficient distance from sources of electromagnetic interference

Mounting on rail DIN-EN 50222

Drill holes Ø6

Screw in the mounting rail

Clip the device onto the

mounting rail

Wall mounting

Only mount the device on a flat surface!

Drill holes Ø6

Screw in the device

CALEC® ST II

4.2 Electrical connection

Hazard warning

Connection diagram

The connection diagram is located on the inside of the front cover.

Sample connection diagram: Analogue outputs in socket #1 and M-Bus in socket #2.

WARNING!

Danger of electrocution! Touching or gripping live electrical parts can cause an electric shock, which may result in burns, paralysis or death.

• The device should only be opened, installed or repaired when the power has been switched off.

• Only specialist technicians are authorised to work on or with mains voltage. They must comply with the applicable regulations.

• Only the screw-type terminals in the separated area on the left in the terminal compartment should be used to connect the device to the mains supply.

CALEC® ST II

Terminal technology

The CALEC® ST II is equipped with direct plug-in terminal connectors based on the “push-in” principle. Stripped rigid conductors or flexible conductors with crimped ferrules (AEH) can be plugged directly into the spring terminal to create a reliable, vibration-resistant and gas-tight connection. The release button has to be pressed for finestranded conductors, or to release the conductors.

Connectable conductors: Single-conductor connection:

• Single-wire mm2: 0.50…1.50

• Finely stranded mm2: 0.50…1.50

• Finely stranded with AEH mm2: 0.25…1.50

• AEH with plastic collar mm2: 0.25…0.75 Stripping length mm: 8.0 + 1.0 AWG: 24-16

Functionality of connections

Connection diagram

The functionality of different connections can be configured with microswitches S1 - S5. The original factory status is documented on the connection diagram. If required, the alternative functionality shown in the connection diagram can be made available by switching the corresponding microswitch.

Sample connection diagram: Analogue outputs in socket #1 and M-Bus in socket #2.

Overview of configuration options using microswitches

Terminals Switch Left function position Right function position

100 - 101 S1 OUTPUT#1 INPUT#2 102 - 103 S2 OUTPUT#2 INPUT#3 10 - 11 S3 INPUT#1: Active transmitter signal INPUT#1: Passive transmitter signal (5 - 48 VDC) (e.g. reed) 108 - 109 S4 Sensor supply voltage Note: Consider section low voltage supply (page 13) 106 - 107 S5 OUTPUT #1C Sensor supply voltage

3.6 V DC

Supply voltage 100 - 240 V AC 50/60 Hz

Connections: L and N The supply voltage is connected via the two screw terminals in

accordance with on-site regulations.

The cable is passed through the diaphragm seal using the enclosed piercing awl.

Voltage range: 100 - 240 V AC Frequency range: 50/60 Hz Power requirements: max. 15 VA

Connection cross-section: max. 2.5 mm

Cladding diameter: max. 8 mm Heat resistance: min. 65°C

Connection to circuit with protection of max. 10A and double-pole isolating element.

Low voltage supply 12 - 42 V DC or 12 - 36 V AC 50/60 Hz or 24 VDC ± 20%

Connections: 108 and 109 Switch S4 (24 V ~ )

The CALEC® ST II can be supplied with safe extra-low voltage via these terminals.

Voltage range: 12 - 42V DC / 12 - 36V AC Frequency range: 50/60 Hz Power requirements: max. 1 VA

With adapter « insulated supply 24V-24V» (Art. no. 80828)) Voltage range: 24VDC ± 20% Frequency range: 50/60 Hz Performance range: max 1 W

CALEC® ST II

NOTE!

In low voltage applications of CALEC® ST II, in which a multiple grounding (PE) exists in field installation, the adapter “insulated supply 24V-24V» (Art. no. 80828) must be positioned upstream.

Examples for grounding:

• Grounded pulse input (e.g. pulser AMFLO® MAG Basic)

• Grounded sensor supply 3.6V and / or 24V

• Grounded pole of the low voltage supply

Procedure:

1. Disconnect CALEC® ST II from power supply

2. Set switch S4 from left to right

3. Connect adapter: 108+ from adapter to clamp 108 on CALEC® ST II 109- from adapter to clamp 109 on CALEC® ST II IN+ and IN- from adapter to the external measuring point supply

Additionally the low voltage and sensor supply is possible with the adapter “insulated supply 24V-24V». Therefore the sensor shall be connected with OUT2+ and OUT2- (max. 150 mA).

If the switch is not correctly set, the device is later may not working properly or getting destroyed. The function low voltage supply shall only be used with the switch S4 in the position “right”!

CALEC® ST II

4-wire temperature sensor

Connections: 1 to 8

Check that the temperature sensor type (e.g. Pt500) corresponds to the specifications of the CALEC® ST II.

Connection cross-sections: min. 0.22 mm

Cable length: max. 100 m

2-wire temperature sensor

Connections: 1, 2 and 3, 4

Check that the temperature sensor type (e.g. Pt500) corresponds to the specifications of the CALEC® ST II.

Connection cross-sections: Head sensor: min. 0.8 mm

Cable sensor: min. 0.22 mm

Cable length: shorter than 50 m (recommended) Please note that the following maximum cable lengths are permitted for

2-wire technology, according to EN 1434-2: Cable cross-section: Cable length:

Pt100 Pt500 min. 0.22 mm2 2.5 m 12.5 m min. 0.50 mm2 5.0 m 25.0 m min. 0.75 mm2 7.5 m 37.5 m

min. 1.5 mm2 15.0 m 75.0 m

NOTE!

Please check the connections carefully and ensure that the sensors are not reversed.

hot

terminals 1/5 and 2/6

cold

terminals 3/7 and 4/8

Temperature sensor cables must not be routed near power lines or electromagnetic inter-

ference sources (min. 50 cm distance).

NOTE!

The length of signal cable supplied by the manufacturer must not be changed. Please check the connections carefully and ensure that the sensors are not reversed.

hot

terminals 1 and 2

cold

terminals 3 and 4

Temperature sensor cables must not be routed near power lines or electromagnetic inter-

ference sources (min. 50 cm distance).

CALEC® ST II

Sensor supply voltage 24 V DC

Connections: 108 and 109 Switch S4 (PS1)

When switch S4 is in the left-hand position (PS1), terminals 108/109 have a 24 V DC power supply for supplying a flow transmitter, e.g. AMFLO® MAG Smart.

Output voltage: 24 VDC, electrically isolated from all other outputs Load: max. 150 mA Electrical isolation: max. 48 VDC

Sensor supply voltage 3.6 V DC

Connections: 106 and 107 Switch S5 (PS2)

When switch S5 is in the right-hand position (PS1), terminals 106/107 have a 3.6 V DC power supply for supplying a flow transmitter, e.g. AMFLO® SONIC UFA113.

Output voltage: 3.6 VDC, not electrically isolated Load: max. 2 mA

NOTE!

When the sensor power supply is not needed, it can also be used for the active supply of the current outputs (optional). If multiple current outputs are supplied, please note that these are no longer electrically isolated from each other.

NOTE!

Terminal 107 is connected to terminal 11 and establishes the reference potential for the flow transmitter.

CALEC® ST II

Flow transmitter with passive signal on pulse input #1

Connections: 10 and 11 Switch S3 (PASSIVE)

When switch S3 is set to the right-hand position (PASSIVE), a flow transmitter with passive pulse signals, such as a reed relay or SSR (solid state relay), can be connected to terminals 10 and 11.

The pulse signal from the flow transmitter must comply with the following specifications:

Open-circuit voltage: 8 V Short-circuit current: 8 mA Switching level: <1.5 mA, >2.1 mA Input capacity: 20 nF Frequency range: 0…20 Hz 0…200 Hz Min. OFF (toff): 20 ms 2 ms Min. ON (ton): 3 ms 300 μs

The programming options for this input are described in the “InPutS” of chapter „Operation“.

Diagram of input circuit

NOTE!

Flow transmitter cables must not be routed near power lines or electromagnetic interfe-

rence sources (min. 50 cm distance).

CALEC® ST II

Flow transmitter with active signal on pulse input #1

Connections: 10 and 11 Switch S3 (ACT)

Switch S3 must be moved to the left-hand position (ACT) for flow transmitters with an active signal.

The pulse signal from the flow transmitter must comply with the following specifications:

Voltage range: 3...48 VDC Current signal: > 2 mA Reverse polarity protection: -48 V Electrical isolation: 48 V Frequency range: 0…20 Hz 0…200 Hz Min. OFF (toff): 20 ms 2 ms Min. ON (ton): 3 ms 300 μs

The programming options for this input are described in “InPutS” of chapter „Operation“.

Diagram of input circuit

NOTE!

Flow transmitter cables must not be routed near power lines or electromagnetic interfe-

rence sources (min. 50 cm distance).

CALEC® ST II

Connection examples for flow transmitters on pulse input #1

a) Connection example for TOPAS PMG/PMH flow transmitter

Connections: 10 and 11 Switch S3 (PASSIVE)

The TOPAS PMH transmits a passive pulsed signal when switch S3 is in the right-hand position (PASSIVE).

b) Flow transmitter AMFLO® SONIC UFA113 with supply

Connections: 10, 11 and 106, 107 Switch S5 (PS2)

Switch S3 (PASSIVE)

The AMFLO® SONIC UFA113 is supplied with 3.3 V DC via terminal 106 and 107 when switch S5 is in the right-hand position (PS).

The AMFLO® SONIC UFA113 transmits a passive pulsed signal when switch S3 is in the right-hand position (PASSIVE).

Connections 11 and 107 are connected internally, which means that the connection can be made using only 3 wires.

–

CALEC® ST II

c) AMFLO® MAG Smart / MAG Basic flow transmitter with grounding (standard)

Connections: 108, 109, 10 and 11 Switch S4 (PS1)

Switch S3 (PASSIVE)

Set switch S4 to the left-hand position (PS) so that the AMFLO® MAG Smart is supplied with 24 V DC via terminals 108 and 109.

The AMFLO® MAG Smart transmits a passive pulsed signal when switch S3 is in the right-hand position (PASSIVE).

d) AMFLO® MAG Smart / MAG Basic flow transmitter with two groundings

OUT2+, OUT2-, 10 and 11 Switch S4 (=24V)

Switch S3 (PASSIVE)

CALEC® ST II is supplied with 24 VDC via the adapter «insulated sup ply 24V-24V» (Art. no. 80828) IN+ and IN- over the clamps 108 and

109. Therefore the switch S4 needs to be switched to the “right” (24V).

AMFLO® MAG Smart is supplied with 24 VDC via OUT2+ and OUT2- at the adapter «insulated supply 24V-24V».

AMFLO® MAG Smart is emitting a passive pulse signal, for which the switch S3 shall be switched to the „right“ (PASSIVE).

NOTE!

See note low voltage supply (page 13)

CALEC® ST II

Pulse input #2

Connections: 100 and 101 Switch S1 (in)

Terminals 100 and 101 can be used as the 2nd pulse input when switch S1 is set to the right-hand position (In).

The data correspond to pulse input 1 for passive pulse transmitters on terminal 10 and 11.

The programming options for this input are described in the “InPutS” of chapter „Operation“.

Pulse input #3

Connections: 102 and 103 Switch S2 (in)

Terminals 102 and 103 can be used as the 3rd pulse input when switch S2 is set to the right-hand position (In).

The pulse signal from the pulsed transmitter must comply with the following specifications:

Frequency range: 0…20 Hz ton: ≥ 50 µs t

off

: ≥ 50 µs Switching thresholds: RON: ≤ 20 Ω R

OFF

: ≥ 1 MΩ

The programming options for this input are described in the “InPutS” of chapter „Operation“.

Diagram of input circuit

CALEC® ST II

Digital output (pulse, status, alarm) #1

Connections: 100 and 101 Switch S1 (Out)

Terminals 100 and 101 are used as digital output 1 when switch S1 is set to the left-hand position (Out).

Switching voltage: max. 48 V DC, 36 V AC Switching current: max. 100 mA

RON: < 25 Ω R

OFF

: > 1 MΩ Electrical isolation: max. 48 V DC Pulse frequency: max. 4 Hz Pulse width: 100 ms

The programming options for this input are described in the “OutPutS” of chapter „Operation“.

Diagram of input circuit

Digital output (pulse, status, alarm) #2

Connections: 102 and 103 Switch S2 (Out)

Terminals 102 and 103 are used as digital output 2 when switch S2 is set to the left-hand position (Out).

Data as per digital output signal 1.

Module slots

Connection diagram

CALEC® ST II is equipped with 2 separate slots for optional communication or function modules. Depending on the equipment fitted to the device, these 2 slots provide various connection options on outputs #1A, #1B and #2A. The connection diagram and the terminal numbers shows the optional communication or function modules which are fitted to the device.

Sample connection diagram: Analogue outputs in socket #1 and M-Bus in socket #2.

Function overview of outputs #1A, #1B and #2A

Optional communication and function modules

Communications modules can be connected to either slot #1 or #2. It is preferable to use the function module with 2 analogue outputs in slot #1, because both channels are connected to terminals. In principle, the analogue output can also be used in slot #2. However, only one analogue output is available on the terminals in this case. It is therefore preferable to use slot #2 for the first communication module.

CALEC® ST II

Function Terminals Available on output

M-Bus 24 - 25 #2A and / or #1A Modbus RTU (RS 485) 90a - 91b #2A and / or #1A BACnet MS/TP (RS 485) 90a - 91b #2A and / or #1A N2Open (RS 485) 90a - 91b #2A and / or #1A LON TP/FT-10 90a - 97b #2A and / or #1A 4 - 20 mA / 0 - 20 mA 70 - 71 #1A and / or #2A 4 - 20 mA / 0 - 20 mA 72 - 73 #1B

CALEC® ST II

Analogue module in socket #1

For devices with 2 analogue outputs, the analogue module is fitted to socket #1.

Connections: 70, 71, 72 and 73

If an analogue module is connected to socket #1, there are 2 passive analogue outputs via terminals 70/71 (#1A) and 72/73 (#1B).

The analogue outputs are electrically isolated.

Current range: 4...20 mA or 0...20 mA Supply voltage: 6...24 V DC Electrical isolation: max. 48 V DC Resistance: ≤ 837 ohms at 24 V DC

The programming options for this output are described in “I-OUT” of chapter „Operation“.

Analogue module in socket #2

Connections: 70 and 71 (#2A)

If an analogue module is connected to socket #2, there is one analogue output via terminals 70 and 71 (#2A).

Data as per the analogue module in socket #1.

Resistance

CALEC® ST II

M-Bus Modul

M-Bus-Modul in Socket #2

Slot #2 is used for the first communication module.

Connections: 24 and 25 (#2A)

M-bus is connected via terminals 24 and 25 (#2A). The primary and secondary address, and the baud rate, can be set under “M-BuS”.

The interface is electrically isolated.

Factory settings: Primary address: 0 Secondary address: Serial number Baud rate: 2,400 baud

M-Bus module in socket #1

Connections: 24 and 25 (#1A)

The wiring for the second M-Bus interface is via terminals 24 and 25 (#1).

The specifications are the same as for the first M-Bus.

The settings for the first and second M-Bus can be programmed independently.

REFERENCE!

The M-Bus protocol is described in detail in a separate document, which is available on the following website: http://www.aquametro.ch/qr/prod/calec-st/11111.html

CALEC® ST II

LON-Modul

LON module in socket #2

Slot #2 is used for the first communication module.

Connections: 96a and 97b (#2A)

The twisted pair wiring is via terminals 96a and 97b (# 2A) and is not poled.

The interface is electrically isolated.

The service PIN and the Wink LED are available for identification on the LON network. The service LED provides information about the system status.

LON module in socket #1

Connections: 96 and 97 (#1A)

The twisted pair wiring for the second LON interface is via terminals 96a and 97b (#1A).

The specifications are the same as for the first LON interface.

REFERENCE!

The LON TP-FT 10 interface is described in detail in a separate document, which is available on the following website: http://www.aquametro.ch/qr/prod/calec-st/11111.html An XIF file is also available at www.lonmark.org

Wink LED Service PIN Service LED

BACnet MS/TP Modul

BACnet MS/TP module in socket #2

Slot #2 is used for the first communication module.

Connections: 90a+ and 91B- (#2A)

The twisted pair wiring is via terminals 90a and 91b (#2A). The BACnet MAC address, device instance number, mode and baud rate can all be set under “BACnet”. If the CALEC® ST II is at the end of the BACnet-segment, the internal termination resistor can be used.

The interface is electrically isolated.

Factory settings: Aquametro manufacturer ID: 431 BACnet device profile: B-ASC BACnet MAC address: Last 2 digits of the serial number Device instance number: Last 5 digits of the serial number Mode: Master Baud rate: Automatic

BACnet MS/TP module in socket #1

Connections: 90a+ and 91b- (#1A)

The twisted pair wiring for the second BACnet inter-face is via terminals 90a+ and 91b- (#1A).

The specifications correspond to the first BACnet interface.

CALEC® ST II

REFERENCE!

The BACnet MS/TP protocol is described in detail in a separate document, which is available on the following website: http://www.aquametro.ch/qr/prod/calec-st/11111.html The PICS document can also be found there.

CALEC® ST II

Modbus RTU Modul

Modbus RTU module in socket #2

Slot #2 is used for the first communication module.

Connections: 90a+ and 91b- (#2A)

The twisted pair wiring is via terminals 90a+ and 91b- (#2A).

The address, baud rate and parity can be set under “ModbuS”. If the CALEC® ST II is at the end of the Modbus-segment, the internal termination resistor can be used.

The interface is electrically isolated.

Factory settings: Modbus address: 1 Baud rate: 19200 baud Parity: Even

Modbus RTU module in socket #1

l Connections: 90a+ and 91b- (#1A)

The twisted pair wiring for the second Modbus interface is via terminals 90a+ and 91b- (#1A).

The specifications are the same as for the first Modbus interface.

REFERENCE!

The Modbus RTU interface is described in detail in a separate document, which is available on the following website: http://www.aquametro.ch/qr/prod/calec-st/11111.html

CALEC® ST II

METASYS® N2Open Modul

METASYS® N2Open module in socket #2

For devices with a communication module, this is fitted to socket #2.

Connections: 90a+ and 91b- (#2A)

The twisted pair wiring is via terminals 90a and 91b (# 2A). The address and the baud rate can be set under “n2-buS”. If the CALEC® ST II is at the end of the N2Open-segment, the internal termination resistor can be used.

The interface is electrically isolated.

Factory settings: N2Open address: 1 Baud rate: 9600

METASYS® N2Open module in socket #1

Connections: 90a+ and 91b- (#1A)

The twisted pair wiring for the second N2Open interface is via terminals 90a+ and 91b- (#1A).

The specifications are the same as for the first N2Open interface.

REFERENCE!

The METASYS® N2Open Interface is described in detail in a separate document, which is available on the following website: http://www.aquametro.ch/qr/prod/calec-st/11111.html

CALEC® ST II

Connecting the mains voltage

Hazard warning

WARNING!

Danger of electrocution! Touching or gripping live electrical parts can cause an electric shock, which may result in burns, paralysis or death.

• The device should only be opened, installed or repaired when the power has been switched off.

• Only specialist technicians are authorised to work on or with mains voltage. They must comply with the applicable regulations.

• Only the screw-type terminals in the separated area on the left in the terminal compartment should be used to connect the device to the mains supply.

NOTE!

Calibrated device!

• The device must be protected by an external overcurrent protective device (max. 10A) so that the unit shuts down safely in the event of an electrical fault. The power supply must be designed to ensure that it has adequate protection against intentional interruption and that it can be shut down for maintenance.

• A marked 2-pole isolating device is mandatory. Alternatively, a 2-pole isolating overcurrent protective device can be used. However, it must not be possible to the circuit for the totaliser to be disconnected independently of the heating or cooling system.

• The connection cable must have a temperature resistance > 65°C.

CALEC® ST II

(A) Power supply terminal (B) External isolating device (C) External protection

The power supply is connected to the screw terminals (A). After tightening the terminals, check that the wires are clamped securely.

Tighten the strain relief, check that it is functioning correctly.

CALEC® ST II

Closing the housing

Insert the cover into the hinge from above and turn to close. Tighten the two fixing screws. The screws can be secured. Once the security sealing caps stored

on the top of the housing have been fitted, any unauthorised opening of the device can be detected. Engage the security sealing caps with the smooth side on the outside.

CALEC® ST II

5 Controls and operation

5.1 Content of this manual

This manual only contains details of the operating steps required to perform a function check.

5.2 Controls

Cover Liquid crystal display

(LCD) Enter key Select key

Nameplate, if verified with calibration Optical M-Bus interface / alarm signal display (flashing red) Service key Nameplate of totaliser module Housing screws covered by safety caps

REFERENCE!

Related documents! Related documents can be found on the following website: http://www.aquametro.ch/qr/prod/calec-st/11111.html

CALEC® ST II

5.3 Display

5.4 Operating modes

The operating keys and display enable all relevant settings to be carried out without using peripheral units. The settings are arranged in three security levels (lock levels).

Various data can therefore be altered depending on the operating mode.

User mode:

When the housing is closed, freely accessible data can be shown in the display using the keys.

Service mode:

This can be activated by pressing the service key when the cover is open. It also enables all necessary but non-verifiable startup parameters to be set and displayed.

Programming mode:

This enables the complete range of settings, including calibrated values, to be made. This can be activated only if the leaded seal has been destroyed. It is not described in these instructions.

Flow indication

Alarm indication

Places after the decimal point

Service mode

Edit mode

User mode

Memory

Identification 8 character decimal field Units

CALEC® ST II

5.5 Key functions

When the device is switched on, the display shows the energy reading in the Counter loop. Additional readings can be displayed by pressing the Select button. The “Counter” menu is displayed once you have scrolled through all readings. Press the Enter button to display the Counter loop again. The other available main menus can be selected by pressing the Select button. Press the Enter button to display the relevant menu loop.

The main loop shows the key readings and allows you to navigate through the sub-loops. In addition, highresolution meter readings can be displayed by pressing the two buttons simultaneously.

Keys Function

Next field Higher value

Accept the set value Accept the selected value

Hold + for longer than 1s Return to the standard “Counter” display Hold , press High-resolution display Hold , press Previous field

Lower value The Service button activates Edit mode

CALEC® ST II

5.6 Display and menu structure

The following double pages shows the menu structure.

Legend:

Note!

Fields marked with * are only visible when the device has the corresponding option (Mass, PDA, TGR, tariff & BDV, Flow, GLY).

Field visible

Field visible under certain conditions

Field in service mode editable

Field in programming mode editable

Field in Init mode editable

white

grey 15%

grey 35%

CALEC® ST II

Menu description

Display Definition Counter Counters

E Energy meter reading V Volume meter reading M Mass meter reading (optional) E2 Energy meter 2 reading (optional BDE/TGR) V2 Volume meter 2 reading (optional BDE) E3 Energy meter 3 reading (optional TGR) H1 Auxiliary counter 1 reading (optional Flow) H2 Auxiliary counter 2 reading H3 Auxiliary counter 3 reading Imp Pulse value flowmeter Sid Installation side flowmeter

Display Definition INFO Error messages

SYSt-Err Error system U-Err Error supply th-Error Error temperature sensor hot side tc-Error Error temperature sensor cold side MEM-Err Memory error (HW) OPT-Err Error on one of the option modules (HW) th-ALArM Temperature on hot side outside the permitted range tc-ALArM Temperature on cold side outside the permitted range dt-ALArM Temperature difference outside the permitted range Ext-AL External Alarm

XX888XXX Display test

CALEC® ST II

Display Definition

Instant Current values

Th Temperature hot side (For cooling = Return line) Tc Temperature cold side (For cooling = Supply line) dT Temperature difference P Power Qv Flow Qm Mass flow KF Specific heat factor DEN Density

Display Definition

TIME Time-parameters

DAT Date TiM Time DAY Day SEA Summer or Winter time Hr Operating hours AL Hours of alarm Err Hours of error Pb Calibration year

CALEC® ST II

Menu description

Display Definition Stich Billing date values

Nr Billing date number 1 - 12 St Billing date 1 - 12 DAT Date E Energy meter reading V Volume meter reading M Mass meter reading E2 Energy meter reading 2, in options BDE / BDV V2 Volume meter reading 2, in options BDE / BDV E3 Energy meter reading 3, in option TGR H1 Auxiliary meters reading 1, in option Flow H2 Auxiliary meters reading 2 H3 Auxiliary meters reading 3 AL Alarm hours ERR Error hours

Display Definition LOGGEr Logger data

Nr Logger number Per memory interval DAT Date E Energy meter reading V Volume meter reading M Mass meter reading E2 Energy meter reading 2 in options BDE / BDV V2 Volume meter reading 2 in options BDE / BDV E3 Energy meter reading 3 in option TGR H1 Auxiliary meters reading 1, in option Flow H2 Auxiliary meters reading 2 H3 Auxiliary meters reading 3

CALEC® ST II

Display Definition Inputs Parameters for input signals

Nr Input number Fct Input Function ImP Puls value of the flow meter Sid Installation side of the flow meter (th = hot side, tc = cold side) F Maximum frequency STA Actual status MAX Upper limit for th / tc alarm MiN Lower limit for th / tc alarm Tr Threshold for return temperature in option TGR Overstepping: register E2 Undercutting: register E3

CALEC® ST II

Menu description

Display Definition Outputs Parameters for digital output signals

Nr Output number Fct Output Function SIG Type of the output ImP Pulse value of the output GW1 Limit 1 GW2 Limit 2 Hys Hysteresis Cnt Pulse counter / Seconds of overstepped limit value Act Direction of action STA Actual status

Display Definition I-Out Parameters for analogue output signals

Nr Output number Fct Output Function SIG Type of the output 0/4 Value at 0 mA 20 Value at 20 mA do Simulation mA value Err Current output in case of error STA Current value

CALEC® ST II

Menu description

Display Definition UnitS Units

Eu Energy unit Ed Number of decimal places on the display for energy V Number of decimal places on the display for volume M Number of decimal places on the display for mass P Power unit Q Volume flow unit T Temperature unit EP Pulse value for energy pulse output VP Pulse value for volume pulse output

Display Definition M-BuS M-Bus parameters

Nr M-Bus number (1 = Socket #1, 2 = Socket #2, 3 = optical interface) Adr Primary M-Bus address SEK Secondary M-Bus address BAU Baud rate Acc Access counter APP M-Bus application reset

CALEC® ST II

Display Definition ModbuS Modbus-Parameter

Nr Modbus number (1 = Socket #1, 2 = Socket #2) Adr Modbus address BAU Baud rate Par Parity TRN Termination resistor ON / OFF

n2-buS N2Open parameters Nr Number (1 = Socket #1, 2 = Socket #2) Adr Address TRN Termination resistor ON / OFF

Display Definition BAcnEt BACnet-parameters

Nr Number (1 = Socket #1, 2 = Socket #2) Adr Address Mod Mode (Master /Slave) DIN BAcnEt Device Instance Number TRN Termination resistor ON / OFF

CALEC® ST II

Menu description

Display Definition CONFIG

TYP Type temperature sensors (PT 100 etc.) MEd Heat carrier (medium) in option Glycol Con Concentration of heat carrier in option Glycol SMU Low flow cut off Rem Remanence (time of display of instantaneous Values)

Display Definition CONFIG

dPQ Attenuation factor for power and flow dPt Attenuation factor for temperature Loc Lock levels RES Reset of alarms and counters (depending on lock level) dt- Adjustment of minimal temperature difference alarm dtc Sensor alignment

CALEC® ST II

Display Definition SYStEM

FNr Fabrication number SYS Functionality of the calculator DAT Date of manufacture FW Firmware version HW Hardware version CS Checksum

CALEC® ST II

NOTE!

Unit! If the option once-only on-site adjustment of the calibration-related input variables “IMP EBS” is used, ensure that the selected unit can display the amount of energy accumulated during the calibration period without counter overflow.

Init-Mode: Once-only on-site adjustment

Menu description

Display Definition INIT Depending on the model it is possible to program

in the „INIT-Mode“ ImP/Sid/Eu/Ed once-only Go After conforming the settings they can‘t be changed any longer

CALEC® ST II

5.7 Commissioning

Startup

• Check the electrical connections.

• Turn on the power supply.

• Any error/alarms which appear must be fixed, (see Info loop and error messages).

• Press the select button until the display shows “ImP”, and check the pulse value of the flow transmitter.

• Press the select button until the display shows “Sid”, and check the installation side of the flow transmitter.

• Following startup, close the housing and secure the screws with the protective plugs. (Sealing of calibrated measuring points)

• Give this operation manual to the user or leave it with the device.

Function control

• Check the main input unit, or set it up for an auxiliary meter (see Units loop).

• Check the pulse value of the main input, or set it up for an auxiliary meter (see Input loop).

• Check and/or set the date and time (see Time loop).

• If there is a flow, the wave symbol flashes in the top left of the display.

• Check whether plausible instantaneous values are displayed during unit operation (see Instant loop).

• The display reset time (to zero) and the filter characteristics for the instantaneous values of Q and/or P can be set in the Config loop.

CALEC® ST II

5.8 Error messages, alarms

If a fault occurs, the message “Alarm” will appear on the display above the number pad. The optical M-Bus interface also flashes red to indicate the alarm message.

The short message in the information loop gives details of the reason for the fault/alarm.

Message Error/alarm Possible cause Corrective measures

th-ERROR Temperature error • Sensor connected • Check wiring on hot side, incorrectly • Check disconnected no measurement • Interruption/short circuit sensor wires with ohm possible in sensor cables meter

• If OK, check the input input with a resistor: Pt 100: 100 - 150Ω Pt 500: 500 - 620Ω

tc-ERROR Temperature error As above As above on cold side, no measurement possible

SYSt-Error EEPROM Component/device error Send the device to memory error be checked

th-ALArM Temperature on the Temperature of the heat Check the current hot side is outside cycle is too high or temperature in the InStAnt the permitted too low submenu measuring range

tc-ALArM Temperature on the As above As above cold side is outside the permitted measuring range

dt-ALArM Temperature difference • Temperature difference Check the current is outside the permitted in the heat cycle temperature difference measuring range is too large or is negative in the InStAnt submenu

• Sensor problem

CALEC® ST II

6 Maintenance and repair

6.1 Recalibration

In accordance with national legislation on weights and measures, periodic recalibration is required for devices in commercial use which are subject to mandatory verification. The recalibration interval for energy meters is usually 5 years.

All calibration-related functions on the CALEC® ST II can be found on the plug-in totaliser module. This means that recalibration can be carried out by simply replacing the totaliser module. The lower section of the housing containing the field wiring does not have to be removed during calibration. The parameter settings specific to the device are stored redundantly in the lower section of the housing and are loaded automatically when a replacement totaliser module is plugged in. Reparametrisation of the device is not required. When processing the readings, however, remember to ensure that the readings on the replacement totaliser module are reset to 0.

Plug-in totaliser module

7 Disposal

The device contains electronic components and must therefore be disposed of as electronic waste. Aquametro takes back its old devices and will dispose of them. Please also note your local regulations in this respect.

CALEC® ST II

8 Technical data

The following tables contain information on the technical data of the available functions. Please refer to the price list for possible combinations.

Standards

CE directives

14/32/EU Measuring Instruments Directive (MID)

14/30/EU Electromagnetic compatibility (EMC)

14/35/EU Low voltage (LVD)

12/19/EU Waste Electrical and Electronic Equipment (WEEE) Directive

Standards EN 1434, EN 61000-6-1, EN 61000-6-2, EN 61010, DIN 43863-5

Housing and operating conditions

Dimensions W x H x D = 120 x 163 x 49 mm Ambient temperature +5...+55 °C, EN 1434 class C Storage temperature 0...60 °C Humidity Max. 95% rel. humidity (non-condensing) Operating altitude Up to 2,000 m above sea level Protection rating IP 54 Terminals 1.5 mm2 spring terminals, Power connection 2.5 mm2 screw terminals

Basic data for calculator

Temperature measuring range 0...+200 °C (heat carrier: water)

-40...+180 °C (special heat carrier) Temperature difference 0...190 K, Approval 3...190 K, on demand 2...190 K Temperature sensor Pt100 or Pt500 in accordance with IEC 751 paired in accordance

with EN 1434, 2-wire or 4-wire connection. Max. sensor cable length

2-wire connection 10 m, 4-wire connection 15 m. Temperature measurement 20-bit resolution, typical ±0.005 K (Ta = 5...55 °C) resolution Installation side Hot or cold side Pulse value of the flow sensor 0.001...9999.999 litres Pulse values and units for Volume: 0.001...9999.999 ml, l, m3 , GAL auxiliary inputs and Energy: 0.001...9999.999 Wh, kWh, MWh, MJ, KBTU contact outputs Error limits Better than those required for calculators in accordance with EN 1434-1.

Suitable for combined class 2 heat meters in accordance with

EN 1434-1 when used with suitable volume metering units. Optical interface IEC 870-5, M-Bus protocol

CALEC® ST II

Mains version

Power supply 100 - 240 V AC, 50/60 Hz, max. 15 VA (in accordance with EN 1434)

12 - 42 VDC or 12 - 36 VAC, max. 1 VA (according to EN 1434)

At supply via adapter «insulated supply 24V-24V» (Art. no. 80828)

24 VDC ±20%, max. 7 Watt (at adapter) Calculation cycle 1 s Backup battery 3.6 V lithium battery

Additional functions

Adjustable low flow cut-off Function for stopping the energy calculation when the temperature (SMU) difference is too low, ΔT SMU adjustable ΔT = 0 - 2.99 K Limit-value monitoring One-sided or two-sided, hysteresis 0 - 10%,

action of the output signal is selectable

Display

Display units: volume m3, USGal Display units: energy kWh, MWh, MJ, GJ, KBTU, MBTU Data backup in the event of In EERPOM >10 years a power failure Data logger 500 values from all readings with a time stamp, stored in ring memory

Logger interval: 1 min, 1 hour, 1 day, 1 week, 1 month

Low-voltage power supply for flow transmitter

Terminals 108 / 109 (depending

on the version) Terminals 106/ 107 Supply voltage 24 V DC, max.150 mA, 3.6 VDC, max. 2 mA

el. isolation max. 48V V DC Flow transmitter e.g. AMFLO® MAG Smart or e.g. AMFLO® SONIC UFA 113

active sensors

CALEC® ST II

Pulse inputs and outputs

Main input #1 Connecting a pulse generator according to NAMUR, with potential-free contact (10/11) (reed relay) or SSR (solid state relay), or for active sensors with the following

values. Input passive Input active Open-circuit voltage 8 V Voltage range 3...48 V DC Short-circuit current 8 mA Current signal > 2 mA Switching level <1.5 mA, >2.1 mA Reverse polarity protection -48 V Min. OFF (t off) 20 Hz 20 ms Electrical isolation 48 V Min. ON (t on) 20 Hz 3 ms Min. OFF (t off) 20 Hz 20 ms Min. OFF (t off) 200 Hz 2 ms Min. ON (t on) 20 Hz 3 ms Min. ON (t on) 200 Hz 300 µs Min. OFF (t off) 200 Hz 2 ms

Input capacity 20 nF Min. ON (t on) 200 Hz 300 µs Switchable Input Output input and output Open-circuit voltage 8 V Max. Contact rating 48 VDC, 100 mA Output #1/ input #2 Switching level <1.5 mA, >2.1 mA Electrical isolation 48 V (100/101) Min. OFF (t off) 20 Hz 20 ms Contact resistance (on) <30 ohms

Min. ON (t on) 20 Hz 3 ms Contact resistance (off) >10 MOhm

Min. OFF (t off) 200 Hz 2 ms Pulse frequency max. 4 Hz

Min. ON (t on) 200 Hz 300 μs Pulse width 100 ms

Input capacity 20 nF Switchable Input Output input and output Open-circuit voltage 8 V Contact rating 48 VDC, 100 mA Output #2/ input #3 Short-circuit current 800 µA Electrical isolation 48 V (102/103) Switching level <1.4, >3.2 kOhm Contact resistance (on) <30 ohms

Pulse length t off : 20 ms Contact resistance (off) >10 MOhm

Pulse length t on: 3 ms Pulse frequency max. 4 Hz

Max. frequency 20 Hz Pulse width 100ms

Input capacity 20 nF

CALEC® ST II

Option M-Bus Factory settings

M-Bus Interface in accordance with EN 13757-2/-3 Addresses Primary address: 0

Secondary address: Serial number

Baud rate 2400 Baud

Option 2 analogue outputs Output signal 4...20 mA or 0...20 mA Supply voltage 6...24 V DC Electrical isolation max. 48 V DC Maximum resistance ≤ 837 ohms at 24 V DC, 0 ohms at 6 V Maximum transformer error 0.15% of measured value + 0.15% of end value

Option Modbus RTU Factory settings

Physical layer and address RS 485, / address: 1 Baud rate 19200 Address range (slave) 1...247 Parity Even Function code 03: Read holding register

Option N2Open Factory settings Physical layer and address RS 485 / address: 1 Baud rate 9600

Option BACnet MS/TP Factory settings

Physical layer and AMT ID RS 485 / ID: 431 BACnet device profile and instance B - ASC / the last 5 digits of the serial number BACnet MAC address The last 2 digits of the serial number Baud rate and mode Automatic / master

Option LON Interface Factory settings

Type LON TP-FT 10 free topology (2-wire twisted pair),

certified in accordance with LONMARK® 3.4 Baud rate 78 kBaud Maximum bus length 500 m / 2700 m with/without termination resistors,

64 nodes per segment

CALEC® ST II

9 CE Declaration of Conformity

REFERENCE!

CE Declaration of Conformity!

The CE Declaration of Conformity is available at:

http://www.aquametro.ch/qr/prod/calec-st/11111.html

CALEC® ST II

10 Appendix

10.1 Hole template

Änderungen vorbehalten / Sous réserve de modifications Modification

Integra CALEC ST II Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual