FJELLCOM AP Polygard Multi Sensor Board Manuel utilisateur

GAMSB_E_0220

PolyGard2 Multi-Sensor Board Cxxx

Sensor Board for connection of up to three Sensor Cartridges (analog/digital)

SerialNo.

User Manual

February 2020/

User Manual - Multi-

Sensor Board Cxxx

Page 2

GAMSB_E_0220

1Intended Use ...................................................................................................... 3

2Functional Description ....................................................................................... 3

2.1 General ....................................................................................................................................................... 3

2.2 Measuring Mode....................................................................................................................................... 3

2.3 Special Mode............................................................................................................................................. 3

2.4 Function Outputs ..................................................................................................................................... 4

2.5 Relay Mode................................................................................................................................................ 4

2.6 Relay Function Static / Flash ................................................................................................................. 4

2.7Horn Function (not safe output circuit because resettable) ......................................................... 4

3Installation......................................................................................................... 5

3.1 Mounting Instructions............................................................................................................................. 5

3.2 Installation Work...................................................................................................................................... 5

4Electrical Connection ......................................................................................... 6

4.1 Wire Connection ...................................................................................................................................... 6

4.2 Connection Diagram................................................................................................................................ 7

5Commissioning .................................................................................................. 8

5.1 General Notes ........................................................................................................................................... 8

5.2 Optical Check............................................................................................................................................ 8

5.3 Selection Gas Type with Unit ................................................................................................................ 9

5.4 Installation of Sensor Cartridge SC2 ................................................................................................... 9

5.5 Addressing of SC2.................................................................................................................................... 9

5.6 Registration/Assignment of the Sensor Cartridge(s) (SC2) ........................................................... 9

5.7 Calibration ...............................................................................................................................................10

5.8 Calibration with DGC-06 Software PCE06.......................................................................................10

5.9 Exchange of Sensor Cartridge SC2 ....................................................................................................11

6Inspection and Service ..................................................................................... 12

6.1 Inspection ................................................................................................................................................12

6.2 Service and Calibration ........................................................................................................................12

6.3 Trip Test with Reference Gas ..............................................................................................................12

7Project protection ............................................................................................ 12

8Troubleshooting............................................................................................... 13

8.1 Multi-Sensor Board................................................................................................................................13

8.2 Sensor Cartridge (Messages at the Tool / Controller)...................................................................13

9Technical Data.................................................................................................. 14

9.1 Multi-Sensor Board (MSB) ....................................................................................................................14

10 Figures ............................................................................................................. 15

11 Part Disposal .................................................................................................... 16

12 Notes and General Information ........................................................................16

12.1 Intended Product Application.............................................................................................................16

12.2 Installers’ Responsibilities ..................................................................................................................16

12.3 Maintenance............................................................................................................................................16

12.4 Limited Warranty ...................................................................................................................................16

User Manual -

Multi-Sensor Board Cxxx

Page 3

GAMSB_E_0220

1Intended Use

The PolyGard2 Multi-Sensor Boards (for connection of max. three sensor heads) are designed for the

detection of toxic, combustible or dangerous atmosphere in many commercial and industrial applications in

connection with the Gas Controller System DGC-06.

The intended sites are all areas being directly connected to the public low voltage supply, e.g. residential,

commercial and industrial environments as well as small enterprises (according to EN 50 082).

The PolyGard2 devices must not be used in potentially explosive atmospheres. The device must only be

employed in areas within the environmental conditions specified in the Technical Data.

2Functional Description

2.1 General

The Multi-Sensor Board can manage up to three sensors in total, two of them may be different Sensor

Cartridges of the SC2 series via local bus and/or up to three of them analog sensors with 4–20 mA signal

(MC2 series).

Connection to Cxxx

SC2 sensors via local bus

MC2 sensors with 4–20 mA signal

Number

1–3

Number

0–2

Number

0–1

Table: Connection possibilities of sensors to the Cxxx

The function of the sensor series SC2 or MC2 is not the subject of this User Manual but can be found in the

operating instructions SC2/MC2.

The Cxxx provides the power supply of the SC2(s) and makes the measured data available for digital

communication and for the 4 to 20 mA output. Communication with the DGC06 controller takes place via the

RS 485 field bus interface with DGC06 protocol. The alarm relays can be controlled both via the DGC 06

controller and locally via the measurement signals. The digital input for acknowledgment or test function

and other options such as display or various communication protocols for direct connection to superordinate

BMS ensure the adaptation to the wide range of applications in gas detection technology.

The Multi-Sensor Board is integrated in the system as a slave with its basic address. The addressing on the

field bus level as well as the registration and assignment of the Sensor Cartridge on the local bus level is

done via the Service Tool STL06 or with the DGC-06Software PCE06, which is directly connected to

the Cxxx. The cable topology for the RS-485 field bus can be taken from the “Guidelines for wiring

and commissioning of the DGC-06 hardware”.

2.2 Measuring Mode

The sensor element continuously monitors the ambient air to detect an existing gas concentration and

transmits a measurement signal which is proportional to the gas concentration via the amplifier directly to

the AD converter of the µController. The µController checks the measurement signal for plausibility (within

defined measuring, temperature and voltage ranges, etc.), calculates the average and sends both values with

the attributes of gas type and unit via the local bus to the µController of the Multi-Sensor Board. The Cxxx

(slave) sends the data of the registered Sensor Cartridge upon polling request to the GC-06Controller

(master).

2.3 Special Mode

If a fault occurs (measurement signal, temperature or operating voltage outside the defined range,

communication error on local bus) or when the Multi-Sensor Board is in the maintenance/calibration mode,

the measurement operation is interrupted and the status of "special mode" is sent to the GC-06 Controller.

The integrated measuring amplifier converts this change in resistance into a linear output signal. The

continuous combustion leads by-and-by to a loss of sensitivity that can be compensated by performing

regular calibration of zero and gain. See from section 5.7.

User Manual -

Multi-Sensor Board Cxxx

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GAMSB_E_0220

2.4 Function Outputs

SHORT DESCRIPTION OF THE FUNCTION: DIGITAL OUTPUTS WITH THREE RELAYS

Action

Reaction

Relay 1

(Alarm1)

Reaction

Relay 2

(Alarm2)

Reaction

Warning

light

(Alarm 2)

Reaction

Horn

(Alarm 2)

Reaction

Relay 3

(Alarm2 +

fault)

Reaction

LED

Sensor signal < alarm threshold 1

OFF

GREEN

Sensor signal > alarm threshold 1

OFF

RED

Sensor signal > alarm threshold 2

RED

Sensor signal alarm threshold 2,

but button Horn OFF activated

OFF

OFF after

delay ON

RED

Measuring signal < (alarm

threshold 2 - hysteresis) but >=

alarm threshold 1

OFF

RED

No alarm, no fault

OFF

GREEN

No fault, but maintenance due

OFF

GREEN

flashing

Internal error

OFF

YELLOW

Note 1: Status OFF = Relay is configured “Alarm ON = Relay“ or the Cxxx is free from tension.

Note 2: Alarm thresholds can have the same value, therefore the relays and/or the horn and flashlight can be triggered together.

2.5 Relay Mode

Definition of the relay operation mode: The terms energized/de-energized come from the terms energized

or de-energized to trip principle (open circuit / closed circuit principle) used for safety circuits. The terms

refer to the activation of the relay coil, not to the relay contacts (as they are executed as a changeover

contact and available in both principles).

The LEDs attached to the modules show the two states in analogy. (LED off -> relay de-energized)

2.6 Relay Function Static/Flash

Definition of the relay function: The function "flashing" represents a connection option for warning devices

to improve visibility. If” flashing” is set, this must not be used as a safe output circuit anymore.

A combination of relay mode energized with flashing operation makes no sense and is therefore suppressed.

2.7 Horn Function (not safe output circuit because resettable)

The horn function is considered active if at least one of the two parameters (time or assignment to digital

input) is set. The horn function retains its functionality even for alarms in latching mode.

Special function: Recurrence of the horn relay

After an alarm has been triggered, the horn will remain active until it is acknowledged. After

acknowledgment of the horn relay/s (clicking a button or via external input) a timer starts. When this time

has run out and the alarm is still acting, the relay is set again. This process is repeated endlessly as long as

the associated alarm remains active.

Alarm2

Relay2

Gasconcentration higher lower than threshold

Acknowledging-

signal

Off

Time Time

User Manual -

Multi-Sensor Board Cxxx

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GAMSB_E_0220

3Installation

Electronics can be destroyed by electrostatic discharge (ESD). Therefore, the installation work

should be done only by persons connected to ground, e. g. with a wrist strap connected to

ground or by standing on a conductive floor (acc. to DIN EN 100015).

3.1 Mounting Instructions

The housing with the Multi-Sensor Board comes in closed state. Therefore, before mounting, break out the

pre-embossed knockouts to insert the cable entries and the Sensor Cartridge(s). The housing offers different

mounting options by a variety of knockout openings depending on the number and types of Sensor

Cartridge(s).

Prior to breaking out the knockouts it is essential to determine the exact position and size of the Sensor

Cartridge(s) and cable entries with reference to the drawing "Knockouts in housing A", fig. 1.

When choosing the mounting site please pay attention to the following:

•The mounting height depends on the relative density of the gas type to be monitored.

•Choose mounting location of the sensor according to the local regulations.

•Consider ventilation conditions! Do not mount the sensor near the airflow (air passages, suction

holes etc.).

•Mount the sensor at a location with minimum vibration and minimum variation in temperature

(avoid direct sunlight).

•Avoid locations where water, oil etc. may influence proper operation and where mechanical damage

might be possible.

•Provide adequate space around the sensor for maintenance and calibration work.

3.2 Installation Work

Assembly work must only be carried out under gas-free conditions.

The housing must neither be spot drilled nor drilled through outside the knockouts.

The installation position of the gas detector is always with the sensor head downwards.

•Open housing cover.

•On the housing bottom part break out the required pre-embossed knockouts for cable glands and

Sensor Cartridge.

•Fix the housing bottom part to the wall through the four mounting points according to the drawing

"Housing A dimensions" Fig. 2 so that the Sensor Cartridge SC2/MC2 is always directed vertically to

the ground.

•Close the cover.

User Manual - PolyGard®2

Multi-Sensor Board Cxxx

Page 6

GAMSB_E_0220

4Electrical Connection

Assembly work must only be carried out under gas-free and voltage-free conditions!

Consider static electricity instructions (ESD)!

•The technical requirements and regulations for wiring, electrical security, as well as project specific

and environmental and local conditions etc. must be observed when mounting.

•We recommend the following cable types1:

Europe USA / Canada

Power supply 230 V NYM-J 3 x 1.5 mm2 14 AWG / 300 V

Alarm message 230 V (also possible together with power supply) NYM-J X x 1.5 mm2 14 AWG / 300 V

Signal message, bus connection to DGC06, warning devices 24 V J-Y(St)Y 2x2 x 0.8 mm2min. 300 V

Possibly connected external analog transmitters J-Y(St)Y 2x2 x 0.8 mm2 min. 300 V

1The recommendation does not consider local conditions such as fire protection etc.

•Use copper conductors only, for the terminal is only for connection to copper wire.

•Avoid any influence of external interferences by using shielded cables for the bus line, but do not

connect the shield.

•When selecting and installing the cables you have to comply with the regulations concerning the RS

485 bus installation. The installations have to be executed in line topology. Cable length and type

have to be considered as well.

•Strip the cables as short as possible. It is important to ensure that bare wires, e.g. wire shields, do

not come into contact with the mounted PCB (risk of short-circuit).

•Low voltage wire and mains connected wire must be fixed separately by cable ties or similar, to

secure against looseness.

•When choosing the option “Power Supply ≥ 90 VAC” you must make sure that a switch or a circuit

breaker is provided in the building automation especially for the Unit. It must be installed easily

accessible near the Unit. It has to be marked as a disconnecting device for the Unit and shall meet

the relevant requirements of UL/IEC 60947 and UL/IEC 60947-3

•Analog sensors are connected directly to the spring type terminals of the module. The correct

polarity must be observed.

•Digital sensors are connected directly to the local bus socket.

•The alarm signals are available as potential-free change-over contacts. If required, the power supply

is available at the L socket.

•The exact position of the terminals for the sensors and alarm relays is shown in the connection diagrams.

4.1 Wire Connection

•Open the cover.

•Insert the field bus cable from above and connect it.

•Remove terminal block X4 from MSB, connect cable according to 4.2 Connection Diagram.

•Replug terminal carefully on the Cxxx at X4.

•Close cover.

Connecting the 24 V field bus voltage to the local bus terminal X7 can destroy the Multi-

Sensor Board completely!

User Manual -

Multi-Sensor Board Cxxx

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GAMSB_E_0220

4.2 Connection Diagram

Connection Diagram, 24 V DC

Connection Diagram, 230 V AC, 5 VA

Bus_B

Bus_A

GND

24 VDC

Field Bus

X2 X3 X41 1 12 2 23 3 3

Multi Sensor Controller Cxxx 24 VDC

Digital

Input

4 - 20 mA

GND

FieldBus Analog

Input Digital

Output

DI_1

DI_2

Local

Bus_1

Local

Bus_2

1 2 3

X11

1 13 32 24 4 5 6 7

X12

X13

BUS_A

24VDC

AI_01

AI_02

AI_03

GND

Flashlight

Horn

AO_01

BUS_B

GND

Analog

Output

MC2

Sensor* MC2

Sensor*

SC2

Sensor* SC2

Sensor*

24 VDC

GND

4-20mA

1 12 23 3

Digital

Input

GND

* Max. 3

sensors in total

Relay

Alarm1 Relay

Alarm2 Relay

Fault

Relaydrawn de-energized

RelaysMode = Energized (AlarmON= RelayOFF)

+24 V

GND

X1 23 1

RelayVoltage

Max.230 V

Bus_B

Bus_A

GND

Field Bus

X2 X3 X41 1 12 2 23 3 3

Multi Sensor Controller Cxxx, 230 VAC, 5 VA

Digital

Input

4 - 20 mA

GND

FieldBus Analog

Input Digital

Output

DI_1

DI_2

Local

Bus_1

Local

Bus_2

1 2 3

X11

1 13 32 24 4 5 6 7

X12

X13

BUS_A

24VDC

AI_01

AI_02

AI_03

GND

Flashlight

Horn

AO_01

BUS_B

GND

Analog

Output

MC2

Sensor* MC2

Sensor*

SC2

Sensor* SC2

Sensor*

24 VDC

GND

4-20mA

1 12 23 3

Digital

Input

GND

* Max. 3

sensors in total

X2X1 23

Relay

Alarm1 Relay

Alarm2 Relay

Fault RelayVoltage

Max.230 V

Relaydrawn de-energized

RelaysMode = Energized (AlarmON= RelayOFF)

Power Supply

230 V AC

Relay No. 3 is always energized.

User Manual -

Multi-Sensor Board Cxxx

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GAMSB_E_0220

Connection Diagram, 230 V AC, 15 VA

Note:

The connection of three SC2 sensor heads with IR sensor is not permitted.

Do not connect two SC2 sensor heads of the same gas or the same gas group (Freons).

When connecting three MC2 sensors at least one must be of the MC2 E11XX series.

5Commissioning

5.1 General Notes

Only trained technicians should perform the following when commissioning:

•Check for correct mounting location.

•Check that the Cxxx board is firmly seated in the housing.

•Check if connection is correct according to connectiondiagram.

•Check power voltage.

•Install the Sensor Cartridge(s) if not already installed ex works.

•Check Sensor Cartridge connector for correct engagement.

•Address the Multi-Sensor Board (Cxxx).

•Register the Sensor Cartridge(s) at the Cxxx.

•Calibrate (ifnot already factory-calibrated).

Required instruments for commissioning (calibration):

•DGC-06 Service Tool STL06 or

•DGC-06 Software PCE06 incl. USB/RS-485 communication set:

•Calibration: See user manual Sensor Cartridge.

5.2 Optical Check

•Right cable type used.

•Correct mounting height according to definition in Mounting.

•LED status

Bus_B

Bus_A

GND

Field Bus

X2 X3 X41 1 12 2 23 3 3

Multi Sensor Controller Cxxx, 230 VAC, 15 VA

Digital

Input

4 - 20 mA

GND

FieldBus Analog

Input Digital

Output

DI_1

DI_2

Local

Bus_1

Local

Bus_2

1 2 3

X11

1 13 32 24 4 5 6 7

X12

X13

BUS_A

24 VDC

AI_01

AI_02

AI_03

GND

Flashlight

Horn

AO_01

BUS_B

GND

Analog

Output

MC2

Sensor* MC2

Sensor*

SC2

Sensor* SC2

Sensor*

24 VDC

GND

4-20mA

1 12 23 3

Digital

Input

GND

* Max. 3

sensors in total

Relay

Alarm1 Relay

Alarm2 Relay

Fault RelayVoltage

Max.230 V

Relaydrawn de-energized

RelaysMode =Energized (AlarmON= RelayOFF)

Power Supply

230 V AC

Supply Unit

90 to 240 VAC

24 VDC, 15 VA

PENLV-V+1

Bat.

Option UPS

X1 23

+24V

GND

12V

0,8Ah

12V

0,8Ah

Relay No. 3 is always energized.

User Manual -

Multi-Sensor Board Cxxx

Page 9

GAMSB_E_0220

5.3 Selection Gas Type with Unit

The selection of the desired and connected gas sensor type is made by pre-set values.

If other gas sensor types are connected, you have to adjust them with the configuration tool, because

otherwise the device will respond with an error message.

The selection contains all necessary information for the controller and is also used for comparing the real

digital data with the settings.

This feature increases the user and operating security. There is an entry available per gas type for each unit;

at present, there are 100 selection options.

5.4 Installation of Sensor Cartridge SC2

The Sensor Cartridge is supplied in a separate package and should be installed on the housing only during

commissioning to protect it against dirt and damage.

•Check gas type, range and calibration date of Sensor Cartridge.

•Define installation place on the housing of the sensor and break out knockouts. See Fig. 1

•Insert Sensor Cartridge, O-ring seal must rest on the housing exterior.

•Tighten the Sensor Cartridge with M32 hexagon lock nut.

•Plug in the Sensor Cartridge at X2 or X3 of the sensor board. Observe plug polarity, the plug must

engage.

5.5 Addressing of SC2

Abasic communication address is assignedto the Multi-Sensor Board with the help of the DGC-06 Service

Tool STL06 or the DGC-06 Software PCE06. Using this basic address, the data of the Sensor Cartridge

assigned to input 1are sent via the field bus to the gas controller. Any further SC connected/registered on

the Multi-Sensor Board automatically gets the next address.

5.6 Registration/Assignment of the Sensor Cartridge(s) (SC2)

The Cxxx recognizes automatically the SC(s) physically connected to the Multi-Sensor Board via the gas type

and the measuring range which are factory-integrated in the SC address bit. By selecting the signal type,

analog or bus, the input is activated. In the second step by assigning the gas type and defining the

measurement range, the SC is connected to the input.

Up to two different SC2 can be connected at the Multi-Sensor Board. The physical position of the SC2 does

not have to agree with the input in the menu.

Example: Multi-Sensor Board Cxxx with two SC2 for CO, NO2with basicaddress 09

Input

Mode

Field Bus

Address

Gas

Type

Measuring

Range

Result

DP 09

300 ppm

CO SC2 assigned to input 1 und thus field bus address DP09

DP 10

NO2

30 ppm

NO2SC2 assigned to input 2 und thus field bus address DP10

Only the parameters with blue background have to be worked on for the Cxxx addressing and the SC registration.

Mode: Not active: = SC assignment to input not possible

SC: = SC assignment possible

Analog: = Input with 4-20 mA signal, assignment possible

Gas type and meas. range: Selection of gas type and measuring range of the SC connected to the

input or of the analog sensor

The registration is only accepted if the assigned gas type/measuring range are identic in the Cxxx and in the

SC. Gas type and measuring range of the Cxxx are checked for identity by the GC Controller, too.

Only one SC per gas type must be connected to the same Multi-Sensor Board.

Two SC2 sensor heads of the same gas group (Freons) must not be connected.

User Manual -

Multi-Sensor Board Cxxx

Page 10

GAMSB_E_0220

5.7 Calibration

New SC2/MC2 Sensor Heads are always delivered factory-calibrated by MSR-E. This is documented by the

calibration label indicating date and calibration gas. A repeated calibration is not necessary during

commissioning if the device is still in its original packaging (air-tight protection by the red protective cap)

and the calibration doesn’t date back more than 12 months for CO2sensors and 3 months for all other gases.

The calibration of the sensor head is done on the display; for versions without display, you need a PC tool or

the STL06 Service Tool. There is an automatic routine in the calibration menu of the Service Tool STL.

As long as the calibration menu is open and the sensor is gassed with test gas, the alarm release is blocked.

Prior to calibration the sensor must be connected continuously to the power supply for stabilization for a

running-in period (see User Manual of Sensor Cartridge).

There is also the possibility to exchange the SC against a calibrated SC on site. The used SC can then be

calibrated directly in the office or at the MSR_E Calibration Service and then reused.

Prior to calibration the Sensor Cartridge must be supplied with power voltage without

interruption for warm-up and stabilisation. The warm-up time depends on the sensor element

and is shown in the following table for Example: See also User Manual for Sensor Cartridge

Sensor Cartridge

Warm-up for

calibration (h)

Stabilization time to

specification (min)

Flow rate

(ml/min)

150

NO2

500

LPG (C3H4)

150

Table Calibration

Please observe proper handling procedures for compressed gas and test gas bottles (regulations

TRGS 220)!

Test gas can be toxic, so never inhale it!

Symptoms: Dizziness, headache and nausea.

Procedure if exposed: Remove victim to fresh air, seek medical attention.

5.8 Calibration with DGC-06 Software PCE06

•Connect DGC-06 Software PCE06 Interface to the Multi-Sensor Board.

Prior to calibration you have to activate the mode “Special Mode” at the MSB, only then the

calibration menu is enabled. During the special mode the Cxxx doesn’t issue alerts.

•Select the Sensor Cartridge to be calibrated by selecting the gas type.

Zero calibration

•The current zero offset and the offset value of the first calibration is read with "Read".

•Slide calibration adapter carefully onto the Sensor Cartridge.

•Apply synthetic air (flow rate according to the table "calibration", 1 bar ± 10%) to the Sensor

Cartridge.

•When the value is stable, the new zero offset factor is calculated with "Calibration".

The new offset factor is checked for plausibility and stored in the buffer memory. The current measured

value is output with the new offset factor and the offset display is updated.

•With "Save" the new offset factor is written in the SC memory, only then the Zero calibration has

been successfully completed. If you exit the menu without pressing "Save", the original offset data

for the measured value calculation will continue to be used.

With a zero reading> 10% of measuring range during the zero calibration, zero calibration is not possible.

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