Intec Controls PolyGard 2 DC6 User manual

PolyGard2DC6 Multi-Sensor-Controller
Controller for Analog and Digital Sensor Cartridges
Serial No.
User Manual
Version 19.06 2019 en
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
March 09, 2020 – Revision

INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DC6 – UserManual
1 Intended Use................................................................................................................3
2 Functional Description................................................................................................3
2.1 General.........................................................................................................................................3
2.2 Function Outputs .........................................................................................................................3
2.3 Relay Mode ..................................................................................................................................4
2.4 Relay Function Static / Flash .......................................................................................................4
2.5 Horn Function (not safe output circuit because resettable).........................................................4
3 Installation....................................................................................................................5
3.1 Mounting Instructions ..................................................................................................................5
3.2 Installation Work...........................................................................................................................5
4 Electrical Connection..................................................................................................6
4.1 Wiring ...........................................................................................................................................6
4.2 Wiring Diagrams...........................................................................................................................7
5 Commissioning............................................................................................................9
5.1 General Notes ..............................................................................................................................9
5.2 Optical Check...............................................................................................................................9
5.3 Selection Gas Type with Unit .......................................................................................................9
6 Configuration and Parameter Cards .......................................................................10
7 Inspection and Service .............................................................................................13
7.1 Functional Tests (for Initial Operation and Maintenance) ...........................................................13
7.2 Trip Test with Reference Gas......................................................................................................13
7.3 Calibration..................................................................................................................................14
8 Technical Data ...........................................................................................................15
9 Part Disposal..............................................................................................................17
10 Notes and General Information..............................................................................17
12.1 Intended Product Application ..................................................................................................17
12.2 Installers’ Responsibilities........................................................................................................17
12.3 Maintenance.............................................................................................................................17
12.4 Limited Warranty ......................................................................................................................17

1 Intended Use
The PolyGard2DC6 is designed for detection and warning of toxic, combustible or dangerous atmosphere
in many commercial and industrial applications.
The intended sites are all areas being directly connected to the public low voltage supply, e.g. residential,
commercial and industrial ranges as well as small enterprises (according to EN50 082).
The PolyGard2DC6 Multi Sensor Controller must not be used in potentially explosive atmospheres. The
sensor must only be employed in areas within the environmental conditions specified in the Technical Data.
2 Functional Description
2.1 General
The Multi-Sensor-Controller is designed for the connection of max. three sensors, two of them may be different
cartridges of the SC2 series via local bus and/or two of them analog sensors with 4-20 mA signal of the AT6
series. The function of the sensor series SC2 or AT6 is not the subject of this User Manual but can be found in
the User Manual of the SC2 / AT6.
The controller monitors the measured values and activates the alarm relays if the set alarm thresholds for pre-
alarm and main alert are exceeded. In addition, the values are provided for direct connection to the BMS via an
RS-485 interface and also as 4-20 mA output.
The SIL 2 compliant self-monitoring function in the DC6 and in the connected Sensor Cartridge activates the
fault message in case of an internal error as well as in case of a fault in the local bus communication (SC2)
and/or at the 4-20 mA input / output current signals.
Other options such as LCD display, three-color status LED, buzzer, digital input for acknowledgment or test
function, various communication protocols ensure proper adaptation to the wide range of applications in gas
detection technology. For convenient commissioning the DC6 can be pre-configured and parametrised with
factory-set defaults.
2.2 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
OFF
OFF
OFF
ON
GREEN
Sensor signal > alarm threshold 1
ON
OFF
OFF
OFF
OFF
RED
Sensor signal > alarm threshold 2
ON
ON
ON
ON
ON
RED
Sensor signal alarm threshold 2,
but button Horn OFF activated
OFF
ON
OFF after
delay ON
RED
Measuring signal < (alarm
threshold 2 - hysteresis) but >=
alarm threshold 1
ON
OFF
OFF
OFF
OFF
RED
No alarm, no fault
OFF
OFF
OFF
OFF
ON
GREEN
No fault, but maintenance due
OFF
OFF
OFF
OFF
ON
GREEN
flashing
Internal error
OFF
OFF
ON
OFF
OFF
YELLOW
Note 1: Status OFF = Relay is configured “Alarm ON = Relay“ or the MSC 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.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DC6 – UserManual

2.3 Relay Mode
Definition of the relay operation mode:The terms energized / de-energized come from the terms energized /
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)
2.4 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 any more.
A combination of relay mode energized with flashing operation makes no sense and is therefore suppressed.
2.5 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.
Alarm 2
Relay 2
Gas concentration higher lower than threshold
Acknowledging-
signal
On
Off
On
Off
On
Off
Time Time
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DC6 – UserManual

3 Installation
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
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 (see User Manual
of Sensor Cartridge).
•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.
•Observe possible constructor’s instructions.
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.
•Break out the required pre-embossed knockouts on the housing for cable glands and Sensor
Cartridge.
•Cables are introduced from above, the sensor head SC2 / AT6 downwards.
•The DC6 Controller is fixed to the wall through the four marked mounting points at the back side of
the housing. These mounting points are accessible after opening the housing. See figure below.
•The dimensions XX depend on the type and can be read on the back of the housing, in the housing
version of CX, it is115 mm.
•The mounting points are covered by closing the cover at the end of the assembly.
•Close the cover.
Installation of Controller:
XX
XX
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DC6 – UserManual

4 Electrical Connection
Assembly work must only be carried out under gas-free conditions!
Consider static electricity instructions (ESD)!
4.1 Wiring
•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:
USA / Canada
14 AWG / 300 V
14 AWG / 300 V
min. 300 V
Europe
Power supply 230 V NYM-J 3 x 1.5 mm2
Alarm message 230 V (also possible together with power supply) NYM-J X x 1.5 mm2
Signal message, bus connection to DGC6, warning devices 24 V J-Y(St)Y 2x2 x 0.8 mm2
Possibly connected external analog transmitters J-Y(St)Y 2x2 x 0.8 mm2min. 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.
•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.
The exact position of the terminals for the sensors and alarm relays is shown in the connection diagrams.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DC6 – UserManual
PG2 NETWORK CABLE RECOMMENDATION for
RS-485 Com Link & 24 VDC Power Trunk/Bus:
Connect Air #W202P-2288INTEC Cable or equivalent
recommended; 20 AWG, 4-conductor, one shielded
twisted pair (for comm), all wires different colors

4.2 Wiring Diagrams
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DC6 – UserManual
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DC6
Short Description of the Function: Digital Outputs With Three Relays
Action Reaction
Relay 1
(Alarm 1)
Reaction
Relay 2
(Alarm 2)
Reaction
Strobe Light
(Alarm 2)
Reaction
Horn
(Alarm 2)
Reaction
Relay 3
(Alarm 2 + fault)
Reaction
LED
Gas signal < alarm threshold 1 OFF OFF OFF OFF ON GREEN
Gas signal > alarm threshold 1 ON OFF OFF OFF OFF RED
Gas signal > alarm threshold 2 ON ON ON ON ON RED
Gas signal ≥ alarm threshold 2,
but button Horn OFF activated OFF ON OFF after delay ON RED
Gas signal < (alarm threshold 2 -
hysteresis) but >= alarm threshold 1 ON OFF OFF OFF OFF RED
No alarm, no fault OFF OFF OFF OFF ON GREEN
No fault, but service due OFF OFF OFF OFF ON GREEN (ashing)
Internal error OFF OFF ON OFF OFF YELLOW
Note 1: Status OFF = Relay is congured “Alarm ON = Relay” or in the event of a power failure.
Note 2: Alarm thresholds can have the same value, therefore the relays and/or the horn and strobe can be triggered together.
DIMENSIONS
inches (mm)
5.12
(130)
6.22
(158)
5.12
(130)
5.12
(130)
5.12
(130)
2.25
(57)
1.30
(33)
0.94
(24)
1.26
(32)
0.91
(23)
0.94
(24)
Protective Sensor Cap
(optional accessory)
SENSOR BOARD COMPONENTS
DC6 Sensor Board
Service Tool Port
Local Bus_1
Power Supply
X1
Local Bus_2
Digital (Binary)
Inputs
WAO
(Horn/LED)
Field Bus | AnalogOutput
X12
Relay 1
X2
Relay 2
X3
Relay 3
X4
Analog Inputs | Digital Output
X13
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DC6
Short Description of the Function: Digital Outputs With Three Relays
Action Reaction
Relay 1
(Alarm 1)
Reaction
Relay 2
(Alarm 2)
Reaction
Strobe Light
(Alarm 2)
Reaction
Horn
(Alarm 2)
Reaction
Relay 3
(Alarm 2 + fault)
Reaction
LED
Gas signal < alarm threshold 1 OFF OFF OFF OFF ON GREEN
Gas signal > alarm threshold 1 ON OFF OFF OFF OFF RED
Gas signal > alarm threshold 2 ON ON ON ON ON RED
Gas signal ≥ alarm threshold 2,
but button Horn OFF activated OFF ON OFF after delay ON RED
Gas signal < (alarm threshold 2 -
hysteresis) but >= alarm threshold 1 ON OFF OFF OFF OFF RED
No alarm, no fault OFF OFF OFF OFF ON GREEN
No fault, but service due OFF OFF OFF OFF ON GREEN (ashing)
Internal error OFF OFF ON OFF OFF YELLOW
Note 1: Status OFF = Relay is congured “Alarm ON = Relay” or in the event of a power failure.
Note 2: Alarm thresholds can have the same value, therefore the relays and/or the horn and strobe can be triggered together.
DIMENSIONS
inches (mm)
5.12
(130)
6.22
(158)
5.12
(130)
5.12
(130)
5.12
(130)
2.25
(57)
1.30
(33)
0.94
(24)
1.26
(32)
0.91
(23)
0.94
(24)
Protective Sensor Cap
(optional accessory)
SENSOR BOARD COMPONENTS
DC6 Sensor Board
Service Tool Port
Local Bus_1
Power Supply
X1
Local Bus_2
Digital (Binary)
Inputs
WAO
(Horn/LED)
Field Bus | AnalogOutput
X12
Relay 1
X2
Relay 2
X3
Relay 3
X4
Analog Inputs | Digital Output
X13

INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DC6 – UserManual
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DC6
WIRING CONFIGURATION
DC6 Sensor Board
123 1234
Digital (Binary)
Inputs
Digital
Inputs
Analog
Output
Field Bus Analog
Inputs
Digital
Output
F_Bus_A
F_Bus_B
4-20 mA
Local Bus_1 Local Bus_2
24 VDC AI_01 AI_02 NC GND Horn Strobe Light F_Bus_A F_Bus_B AO_01 GND
DI_1 DI_2 GND
GND
1234567
X11
X12 X13
X1 321 X2 321 X3 321 X4 321
24 VDC
GND
4-20 mA
1 2 3
24 VDC
GND
123
4-20 mA
AT6
Sensor 1*
AT6
Sensor 2*
SC2
Sensor 1*
* Note: Combination of (3) total sensors allowed:
(2) local SC2 sensors + (1) remote AT6 sensor;
(1) local SC2 sensor + (2) remote AT6 sensors;
SC2
Sensor 2*
24 VDC 0 VDC NC
Relays drawn de-energized.
Relay Mode = Energized (Alarm ON = Relay OFF)
Signal
Relay 1
Signal
Relay 2
Signal
Relay 3 (Fault)
Power Supply
1 2
F_Bus_A
F_Bus_B
X12
X1 3 2
24 VDC 0 VDC
Field Bus
24 VDC
0 VDC
F_Bus_A
F_Bus_B
DC6
DC6 Last Device on Trunk Segment
If this DC6 is the last
device on a PG2 trunk
segment, use a 560 Ω
resistor at terminal X12
pins 1 and 2.
F_Bus_A
F_Bus_B
1234
X12

5 Commissioning
5.1 General Notes
Only trained technicians should perform the following when commissioning:
•Install the Sensor Cartridge(s) if not already installed.
•Check for correct mounting location.
•Check if connection is correct according to connection diagram.
•Check power voltage.
•Calibrate (if not already factory-calibrated).
Required instruments for commissioning (calibration):
•Service Tool STL6 or
•DPT6 incl. EasyConfig Software and USB/RS-485 communication set
•See document PolyGard®2 Sensor Calibration Procedure
For sensors that e.g. can be poisoned by silicones like all semiconductor and catalytic bead sensors, it is
imperative to remove the protective cap supplied only after all silicones are dry, and then energize the device.
For fast and comfortable commissioning, we recommend proceeding as follows. For digital devices with self-
monitoring all internal errors are visible via the LED. All other error sources often have their origins in the field,
because it is here where most of the causes for problems in the field bus communication appear.
5.2 Optical Check
•Right cable type used.
•Correct mounting height according to definition in Mounting.
•LED status
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
the moment, there are 100 selection options.
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DC6 – UserManual

6 Configuration and Parameter Cards
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DC6 – UserManual
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Specifications subject to change without notice. | USA 200211 | Page 1of 3
PolyGard®2 DC6 Card Parameters
* Default value/selection
Active
SP1
SP2
SP3
Sensor No. Bus/Analog Gas Type Measuring Range
Input Configuration
Hysteresis
CV ON-Delay Time [sec.] 0
CV OFF-Delay Time [sec.] 0
Threshold 1 CV
Threshold 2 CV
Threshold 3 CV
Threshold 4 CV
Analog Output Assignment 1
Relay
Alarm 1 SR
Alarm 2 SR
Alarm 3 SR
Alarm 4 SR
Fault Latching
Alarm/Fault/Latching -> Assignment
Parameter for The Central Processing of The Measured Value
Active*/Inactive
Unlock*/Lock
Gas Type
Measuring Range
SP1 Parameters
Hysteresis
CV ON-Delay Time [sec.] 0
CV OFF-Delay Time [sec.] 0
Threshold 1 CV
Threshold 2 CV
Threshold 3 CV
Threshold 4 CV
Analog Output Assignment 1
Relay
Alarm 1 SR
Alarm 2 SR
Alarm 3 SR
Alarm 4 SR
Fault Latching
Alarm/Fault/Latching -> Assignment
Parameter for The Central Processing of The Measured Value
Active*/Inactive
Unlock*/Lock
Gas Type
Measuring Range
SP2 Parameters
Hysteresis
CV ON-Delay Time [sec.] 0
CV OFF-Delay Time [sec.] 0
Threshold 1 CV
Threshold 2 CV
Threshold 3 CV
Threshold 4 CV
Analog Output Assignment 1
Relay
Alarm 1 SR
Alarm 2 SR
Alarm 3 SR
Alarm 4 SR
Fault Latching
Alarm/Fault/Latching -> Assignment
Parameter for The Central Processing of The Measured Value
Active*/Inactive
Unlock*/Lock
Gas Type
Measuring Range
SP3 Parameters
Sensor Point Parameters
Address

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DC6 – UserManual
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PolyGard®2 DC6 Card Parameters
* Default value/selection
Signal Relay Parameters
Used*/Unused
Energize*/De-En.
Static*/Flash
Local*/Remote
Stage Trigger Quantity
Manual ON via Dig. Inp. BI
Manual OFF via Dig. Inp. BI
Delay On Time [sec.]
Delay Off Time [sec.]
Activate by Failure OFF*/ON
Automatic Reset
Horn Functions
BI
Reset via Dig. Inp.
OFF*/ONActivate by Maintenance
Automatic Reset Time [sec.]
R1 Parameters
Used*/Unused
Energize*/De-En.
Static*/Flash
Local*/Remote
Stage Trigger Quantity
Manual ON via Dig. Inp. BI
Manual OFF via Dig. Inp. BI
Delay On Time [sec.]
Delay Off Time [sec.]
Activate by Failure OFF*/ON
Automatic Reset
Horn Functions
BI
Reset via Dig. Inp.
OFF*/ONActivate by Maintenance
Automatic Reset Time [sec.]
R2 Parameters
Used*/Unused
Energize*/De-En.
Static*/Flash
Local*/Remote
Stage Trigger Quantity
Manual ON via Dig. Inp. BI
Manual OFF via Dig. Inp. BI
Delay On Time [sec.]
Delay Off Time [sec.]
Activate by Failure OFF*/ON
Automatic Reset
Horn Functions
BI
Reset via Dig. Inp.
OFF*/ONActivate by Maintenance
Automatic Reset Time [sec.]
R3 Parameters

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DC6 – UserManual
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Specifications subject to change without notice. | USA 200211 | Page 3of 3
PolyGard®2 DC6 Card Parameters
* Default value/selection
Analog Outputs
Relay Multiplication
Error Time [sec.]AI Maintenance Interval [days]
Average Value Overlay Time [sec.]
Average Value Overlay Data [ppm]
Average value time [sec.]
Power on time [sec.]
System Parameters
Analog Output 01 CV/AV max./avg./min.
%
max./avg./min.
CV/AVAnalog Output 02 %
max./avg./min.
CV/AVAnalog Output 03 %
max./avg./min.
CV/AVAnalog Output 04 %
max./avg./min.
CV/AVAnalog Output 05 %
max./avg./min.
CV/AV
Analog Output 06 %
max./avg./min.
CV/AVAnalog Output 07 %
max./avg./min.
CV/AVAnalog Output 08 %
Analog Output 09 CV/AV max./avg./min.
%
Analog Output 10 max./avg./min.
CV/AV%
Analog Output 11 max./avg./min.
CV/AV%
Analog Output 12 max./avg./min.
CV/AV%
Analog Output 13 max./avg./min.
CV/AV%
Analog Output 14 max./avg./min.
CV/AV
%
Analog Output 15 max./avg./min.
CV/AV%
Analog Output 16 max./avg./min.
CV/AV%
Analog Outputs
PR/SR IN PR/SR OUT
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
Relay Multiplication
SB/PX/MSx
Address
Serial Number Date of Production
Information

7 Inspection and Service
For regular maintenance und calibration by trained technicians we recommend concluding aservice contract
with INTEC Controls or one of their authorized partners.
According to EN 45544-4, inspection and service must be executed at regular intervals. The maximum intervals
have to be determined and observed by the person responsible for the gas warning system according to the
legal requirements. INTEC Controls recommends applying the inspection and maintenance intervals as
prescribed in the general regulations of the gas measuring technique like VDI-2053, EN 60079-29-1 etc. The
inspection interval normally is three months. The recommended service intervals are depended from the
connected Sensor Cartridges. If different intervals are valid, always consider the shortest one.
Inspections and services must be documented. The date for the next maintenance has to be affixed to the
sensor.
7.1 Functional Tests (for Initial Operation and Maintenance)
Gas sensors should be controlled regularly by a competent person according to EN 45544-4. The functional
test should be carried out during each service, but at least once a year. The following has to be checked in
particular:
•Maintenance / calibration interval not exceeded.
•Check the Unit including measuring head for mechanical damage.
•Remove dust deposits, especially at the gas inlet.
•Check the Unit including measuring head for dust, dirt and moisture deposits and clean it with a dry
cloth if necessary.
•The filter at the gas inlet has to be replaced if extremely dirty.
7.2 Trip Test with Reference Gas
When applying a reference gas with a concentration > alarm threshold 2, the set alarm thresholds are
exceeded, and all output functions are activated. It is necessary to check if the connected output functions are
working correctly (e.g. the horn sounds, the fan switches on, devices shut down). By pressing the push-button
on the horn, the horn acknowledgment must be checked. After removal of the reference gas, all outputs must
automatically return to its initial position.
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DC6 – UserManual

7.3 Calibration
New SC2 / AT6 Sensor are always delivered factory-calibrated. 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 CO2 sensors and 3 months for all other gases.
The calibration of the sensor head is done on the display; for versions without display, you need aPC tool or
the STL6 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).
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | GAMSC2_E_0619 | USA 200309 | Page 14 of 17
DC6 – UserManual

8Technical Data
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | GAMSC2_E_0619 | USA 200309 | Page 15 of 17
DC6 – UserManual
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | USA 200304 | Page 2of 5
DC6
SPECIFICATIONS
Electrical
Power supply 24 VDC, polarity protected
Power consumption 24 VDC, 60 mA (1.5 VA)
- toxic gases & oxygen 1 mA (0.1 VA), max. per sensor
- infrared (CO2) 15 mA (0.4 VA), max. per sensor
- combustible gases 55 mA (1.4 VA), max. per sensor
- horn & multi-status LED 40 mA (1.0 VA), max. per sensor
Signal relays Three (3), 250 VAC, 5 A,
potential-free, contacts (SPDT);
2 programmable & 1 fault;
programmability is determined by
the number of connected sensors
Transistor output Two (2), 24 VDC / 0.1 A
(switching to plus)
Digital inputs Two (2), potential-free
Analog inputs Two (2), 4-20 mA overload
and short-circuit proof,
input resistance 200 Ω
Analog output signal One (1), proportional,
overload and short-circuit proof,
load ≤ 500 Ω
4-20 mA = measuring range;
3.0 < 4 mA = under range;
> 20-21.2 mA = over range;
2.0 mA = fault
Output for local bus 5 VDC, 250 mA max.
Overload, short-circuit and
polarity protected
Output signal for
serial communication Digital, RS-485,
proprietary DGC6 protocol,
19200 baud
Sensor Performance See SC2 datasheet for specic
gases
Sensor coverage See SC2 datasheet for specic
gases
Storage time 6 months (for sensor elements)
Environmental
Permissible ambient See SC2 datasheet for specic
gases
Serial Interface
- local bus 1-wire / 19200 Baud
- eld bus RS-485 / 19200 Baud
- tool bus 2-wire / 19200 Baud
Physical
Enclosure “C”, standard
- material Polycarbonate,
UL94 V-2, re retardant
- color Light gray
- protection NEMA 4X (IP65)
- installation Wall (surface) mounted,
or single gang electrical box
Dimensions (H x W x D)
- base unit 5.12 x 5.12 x 2.95 in
(130 x 130 x 75 mm)
Weight 1.32 lb (0.6 kg)
Cable entry, knock outs 3 holes for 1/2 in. conduit,
closed with silver “plugs”
Wire connection
- local bus (SC2) 3-pin connector
- digital input
& analog output Screw-type terminal;
24 AWG (0.25 mm2), min.
16 AWG (1.3 mm2), max.
- power supply, relays Screw-type terminal;
24 AWG (0.25 mm2), min.
14 AWG (2.5 mm2), max.
Weight 1.32 lb (0.6 kg)
Conforms to EMC Directive 2014/30/EU
Low Voltage Directive 2014/35/EU
CE
EN 50271
EN 61508
EN 60079-29-1
EN 61010-1:2010
ANSI/UL 61010-1
CAN/CSA-C22.2 No. 61010-1
City of Los Angeles
Warranty Two years material and
workmanship,
12 months normal exposure for
sensor element
OPTIONS & ACCESSORIES
Horn & Status LED Congurable by local thresholds
or remote DGC6 parameters
Horn
- acoustic pressure > 85 dB (A) (dist. 0.1 m / 0.3 ft)
- frequency 2300 Hz
- protection class NEMA 4X (IP65)
Status LED
- color / mode Red = Alarm;
Yellow = Fault;
Green = Power (Normal);
Green (ashing) = Service
- protection class NEMA 4X (IP65)
Liquid Crystal Display
LCD Two lines, 16 characters each,
illuminated
Modbus Communications
- interface Serial RS-485; 19200 Baud
- protocol Modbus RTU
Protective Sensor Cap XC-CAP
- protection NEMA 4X (IP65)
- color Red
Duct Mounting Kit PG2-DUCTKIT
- ow rate Min. 3.1 mph (5000 m/h),
max. 12.4 mph (20,000 m/h)
- air duct diameter Min. 3.94 in. (0.1 m),
max. 39.37 in. (1.0 m)
- length of sampling tube 9.84 in. (250 mm), adaptable
- hose length 2 x 39.37 in. (1000 mm)

INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | USA 200304 | Page 2of 5
DC6
SPECIFICATIONS
Electrical
Power supply 24 VDC, polarity protected
Power consumption 24 VDC, 60 mA (1.5 VA)
- toxic gases & oxygen 1 mA (0.1 VA), max. per sensor
- infrared (CO2) 15 mA (0.4 VA), max. per sensor
- combustible gases 55 mA (1.4 VA), max. per sensor
- horn & multi-status LED 40 mA (1.0 VA), max. per sensor
Signal relays Three (3), 250 VAC, 5 A,
potential-free, contacts (SPDT);
2 programmable & 1 fault;
programmability is determined by
the number of connected sensors
Transistor output Two (2), 24 VDC / 0.1 A
(switching to plus)
Digital inputs Two (2), potential-free
Analog inputs Two (2), 4-20 mA overload
and short-circuit proof,
input resistance 200 Ω
Analog output signal One (1), proportional,
overload and short-circuit proof,
load ≤ 500 Ω
4-20 mA = measuring range;
3.0 < 4 mA = under range;
> 20-21.2 mA = over range;
2.0 mA = fault
Output for local bus 5 VDC, 250 mA max.
Overload, short-circuit and
polarity protected
Output signal for
serial communication Digital, RS-485,
proprietary DGC6 protocol,
19200 baud
Sensor Performance See SC2 datasheet for specic
gases
Sensor coverage See SC2 datasheet for specic
gases
Storage time 6 months (for sensor elements)
Environmental
Permissible ambient See SC2 datasheet for specic
gases
Serial Interface
- local bus 1-wire / 19200 Baud
- eld bus RS-485 / 19200 Baud
- tool bus 2-wire / 19200 Baud
Physical
Enclosure “C”, standard
- material Polycarbonate,
UL94 V-2, re retardant
- color Light gray
- protection NEMA 4X (IP65)
- installation Wall (surface) mounted,
or single gang electrical box
Dimensions (H x W x D)
- base unit 5.12 x 5.12 x 2.95 in
(130 x 130 x 75 mm)
Weight 1.32 lb (0.6 kg)
Cable entry, knock outs 3 holes for 1/2 in. conduit,
closed with silver “plugs”
Wire connection
- local bus (SC2) 3-pin connector
- digital input
& analog output Screw-type terminal;
24 AWG (0.25 mm2), min.
16 AWG (1.3 mm2), max.
- power supply, relays Screw-type terminal;
24 AWG (0.25 mm2), min.
14 AWG (2.5 mm2), max.
Weight 1.32 lb (0.6 kg)
Conforms to EMC Directive 2014/30/EU
Low Voltage Directive 2014/35/EU
CE
EN 50271
EN 61508
EN 60079-29-1
EN 61010-1:2010
ANSI/UL 61010-1
CAN/CSA-C22.2 No. 61010-1
City of Los Angeles
Warranty Two years material and
workmanship,
12 months normal exposure for
sensor element
OPTIONS & ACCESSORIES
Horn & Status LED Congurable by local thresholds
or remote DGC6 parameters
Horn
- acoustic pressure > 85 dB (A) (dist. 0.1 m / 0.3 ft)
- frequency 2300 Hz
- protection class NEMA 4X (IP65)
Status LED
- color / mode Red = Alarm;
Yellow = Fault;
Green = Power (Normal);
Green (ashing) = Service
- protection class NEMA 4X (IP65)
Liquid Crystal Display
LCD Two lines, 16 characters each,
illuminated
Modbus Communications
- interface Serial RS-485; 19200 Baud
- protocol Modbus RTU
Protective Sensor Cap XC-CAP
- protection NEMA 4X (IP65)
- color Red
Duct Mounting Kit PG2-DUCTKIT
- ow rate Min. 3.1 mph (5000 m/h),
max. 12.4 mph (20,000 m/h)
- air duct diameter Min. 3.94 in. (0.1 m),
max. 39.37 in. (1.0 m)
- length of sampling tube 9.84 in. (250 mm), adaptable
- hose length 2 x 39.37 in. (1000 mm)
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | GAMSC2_E_0619 | USA 200309 | Page 16 of 17
DC6 – UserManual

9 Part Disposal
Since August 2005 there are EC-wide directives defined in the EC Directive 2002/96/EC and in national codes
concerning the waste electrical and electronic equipment and also regarding this device.
For private households there are special collecting and recycling possibilities. For this device isn’t registered for
the use in private households, it mustn’t be disposed this way. You can send it back to your national sales
organisation for disposal. If there are any questions concerning disposal please contact your national sales
organisation.
Outside the EC, you have to consider the corresponding directives.
10 Notes and General Information
It is important to read this user manual thoroughly and clearly in order to understand the information and
instructions. The PolyGard®2 devices must be used within product specification capabilities. The appropriate
operating and maintenance instructions and recommendations must be followed.
Due to on-going product development, INTEC Controls reserves the right to change specifications without
notice. The information contained herein is based upon data considered to be accurate. However, no guarantee
is expressed or implied regarding the accuracy of these data.
10.1 Intended Product Application
The PolyGard®2 devices are designed and manufactured for control applications and air quality compliance in
commercial buildings and manufacturing plants.
10.2 Installers’ Responsibilities
It is the installer’s responsibility to ensure that all PolyGard®2 devices are installed in compliance with all
national and local codes and OSHA requirements. Installation should be implemented only by technicians
familiar with proper installation techniques and with codes, standards and proper safety procedures for control
installations and the latest edition of the National Electrical Code (ANSI/NFPA70).
The equipotential bonding required (also e.g. secondary potential to earth) or grounding measures mustbe
carried out in accordance with the respective project requirements. It is important to ensure that no ground
loops are formed to avoid unwanted interference in the electronic measuring equipment.
It is also essential to follow strictly all instructions as provided in the user manual.
10.3 Maintenance
It is recommended checking the PolyGard®2 device regularly. Due to regular maintenance any performance
deviations may easily be corrected. Re-calibration and part replacement in the field may be implemented by a
qualified technician and with the appropriate tools. Alternatively, the easily removable plug-in Sensor Cartridge
with the sensor element may be returned for service to INTEC Controls.
10.4 Limited Warranty
INTEC Controls warrants the PolyGard®2devices for a period of two (2) yearsfrom the date of shipment
against defects in material or workmanship; 12 months for sensor elements operating within normal exposures.
Should any evidence of defects in material or workmanship occur during the warranty period, INTEC Controls
will repair or replace the product at their own discretion, without charge. A pre-authorized RMA number is
required for returns.
This warranty does not apply to units that have been altered, had attempted repair, or been subject to abuse,
accidental or otherwise. The warranty also does not apply to units in which the sensor element has been
overexposed or gas poisoned. The above warranty is in lieu of all other express warranties, obligations or
liabilities.
This warranty applies only to the PolyGard®2 devices. INTEC Controls shall not be liable for any
incidental or consequential damages arising out of or related to the use of the PolyGard®2 devices.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
Specifications subject to change without notice. | GAMSC2_E_0619 | USA 200309 | Page 17 of 17
DC6 – UserManual