Intec PolyGard 2 DT6 User manual

PolyGard2 DT6
Digital Gas Transmitters
Serial No. SB-03
User Manual
Version February 2020 en
(ref. optional remote sensor DR6)
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
March 06, 2020 – Revision

1 Functional Description...........................................................................................3
1.1 General ................................................................................................................................... 3
1.2 Measuring Mode ..................................................................................................................... 3
1.3 Special Mode .......................................................................................................................... 3
2 Installation .............................................................................................................4
2.1 Mounting Instructions ............................................................................................................ 4
2.2 Installation Work .................................................................................................................... 4
3 Electrical Connection .............................................................................................5
3.1 Wire Connection..................................................................................................................... 5
4 Commissioning.......................................................................................................5
4.1 Installation of Sensor Cartridge ............................................................................................. 6
4.2 Addressing.............................................................................................................................. 6
4.3 Registration / Assignment of the Sensor Cartridge(s) (SC).................................................... 6
4.4 Calibration .............................................................................................................................. 7
4.5 Calibration with DPT6 EasyConfig Software .......................................................................... 7
4.6 Exchange of Sensor Cartridge ................................................................................................ 8
5 Inspection and Service ...........................................................................................9
5.1 Inspection ............................................................................................................................... 9
5.2 Service and Calibration .......................................................................................................... 9
6 Troubleshooting...................................................................................................10
6.1 DT6 Basic Sensor Board ........................................................................................................ 10
6.2 SC2 Sensor Cartridge (Messages at the Tool/Controller) ..................................................... 10
7 Technical Data......................................................................................................11
7.1 DT6 Basic Sensor Board (BSB)............................................................................................... 11
8 Figures..................................................................................................................12
9 Part Disposal ........................................................................................................15
10 Notes and General Information ...........................................................................15
10.1 Intended Product Application .............................................................................................. 15
10.2 Installers’ Responsibilities ................................................................................................... 15
10.3 Maintenance ......................................................................................................................... 15
10.4 Limited Warranty.................................................................................................................. 15
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

Intended Use
The PolyGard2 DT6 are designed for the detection of toxic, combustible or dangerous atmosphere in many
commercial and industrial applications in connection with the Gas Controller System DGC6.
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 Series 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.
1Functional Description
1.1 General
The Sensor consists of the two components DT6 Basic Sensor Board (BSB) and SC2 Sensor Cartridge (SC).
The Sensor Cartridge contains a µController for signal processing besides the sensor element and the
measuring amplifier. All data and measured values of the sensor element are stored fail-safe in the
µController and transferred digitally via the local bus to the DT6 Basic Sensor Board. The calibration
management is also integrated in the µController of the SC2 Sensor Cartridge.
The DT6 Basic Sensor Board has got three local bus interfaces for connection of up to three Sensor Cartridges
and a field bus interface (RS-485) for communication with the DGC6 Gas Controller. The DT6 Basic 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 STL6
Service Tool or with the DPT6 EasyConfig Software, which is directly connected to the BSB.
The cable topology for the RS-485 field bus can be taken from the “Guidelines for wiring and commissioning
of the DGC6 hardware”.
1.2 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 gas type and unit via the local bus to the µController of the DT6 Basic Sensor Board. The BSB
(slave) sends the data of the registered Sensor Cartridge upon polling request to the DGC6 Controller
(master).
1.3 Special Mode
If a fault occurs (measurement signal, temperature or operating voltage outside the defined range,
communication error on local bus) or when the DT6 Basic Sensor Board is in the maintenance/calibration
mode, the measurement operation is interrupted and the status of "special mode" is sent to the DGC6
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 section 4.4.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

2 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).
2.1 Mounting Instructions
The housing with the Basic or Remote 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 drawings "mounting options and knockouts in the
enclosure", fig. 3 and 4.
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.
2.2 Installation Work
•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 dimensions" Fig. 5 so that the Sensor Cartridge is always directed vertically to the ground.
•Close the cover.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

3 Electrical Connection
Consider static electricity instructions (ESD)! See point 2.
•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.
•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).
•Recommended cable for field bus: J-Y(St)Y 2x2x0.8 LG (20 AWG) min 300V, loop resistance 73 /km
(20.8 /1000 ft).
•Recommended cable for local bus (remote mounting): J-Y(St)Y 2x2x0.8 LG (20 AWG), min 300 V.
•Use Copper conductors only if the terminal is only for connection to copper wire.
3.1 Wire Connection
•Open the cover.
•Insert the field bus cable from above and connect it.
•Remove terminal block X4 from BSB, connect cable according to connection diagram fig. 1.
•Replug terminal carefully on the BSB at X4.
•For remote sensor:
▪Insert and connect local bus cable at the basic and remote sensor board.
▪Remove terminal block X7 at sensor board, connect cable acc. to connection diagram fig. 1.
▪Replug terminals carefully on both sensor boards.
•Close cover.
Connecting the 24 V field bus voltage to the local bus terminal X7 can destroy the DT6
Basic Sensor Board completely!
4 Commissioning
Only trained technicians should perform the following when commissioning:
•Check for correct mounting location.
•Check that the DT6 board is firmly seated in the housing.
•Check if connection is correct according to connection diagram.
•Check power voltage.
•Install the SC2 Sensor Cartridge(s) if not already installed ex works.
•Check SC2 Sensor Cartridge connector for correct engagement.
•Address the DT6 Basic Sensor Board (BSB).
•Register the SC2 Sensor Cartridge(s) at the DT6 BSB.
•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:
•Calibration: See SC2 user manual.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

4.1 Installation of Sensor Cartridge
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 basic or remote sensor and break out knockouts. See
Fig. 3
•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.
4.2 Addressing
A basic communication address is assigned to the DT6 board with the help of the STL6 Service Tool or the
DPT6 EasyConfig Software. Using this basic address, the data of the Sensor Cartridge assigned to input 1 are
sent via the field bus to the gas controller. Any further SC connected / registered on the printed circuit board
automatically gets the next address.
4.3 Registration / Assignment of the Sensor Cartridge(s) (SC)
The DT6 recognizes automatically the SC(s) physically connected to it (unimportant whether directly on the
DT6 or on the remote DR6) 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 SC can be connected at the DT6, with a third to an attached remote DR6. The physical
position of the SC does not have to agree with the input in the menu.
Example:
DT6 with three SCs for CO, NO2and C3H4with basic address 09
Input
Mode
Field Bus
Address
Gas
Type
Measuring
Range
Result
1
SC
DP 09
CO
300 ppm
CO SC assigned to input 1 und thus field bus address DP09
2
SC
DP 10
NO2
30 ppm
NO2SC assigned to input 2 und thus field bus address DP10
3
SC
DP 11
C3H4
100 % UEG
C3H4 SC assigned to input 3 und thus field bus address DP11
Only the parameters with blue background have to be worked on for the BSB 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 BSB and in the
SC. Gas type and measuring range of the BSB are checked for identity by the GC Controller, too.
Only one SC per gas type must be connected to the same DT6 Basic Sensor Board.
Two SC2 sensor heads of the same gas group (Freons) must not be connected.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

4.4 Calibration
The STL6 service tool or DPT6 EasyConfig Software are available for convenient on-site calibration.
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 INTEC Controls 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)
CO
24
60
150
NO
2
24
60
500
LPG (C
3
H
4
)
24
60
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.
4.5 Calibration with DPT6 EasyConfig Software
•Connect DPT6 EasyConfig Software Interface to the DT6 Basic Sensor Board.
Prior to calibration you have to activate the mode “Special Mode” at the BSB, only then the
calibration menu is enabled. During the special mode the BSB 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.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

Gain calibration
•Enter test gas concentration (value between 30 and 70 % of the measuring range)
•The current sensor element sensitivity is read with "Read".
•Slide calibration adapter carefully onto the Sensor Cartridge.
•Apply test gas (flow rate according to the table "calibration", 1 bar ± 10%) to the Sensor Cartridge.
•When the value is stable, the new gain factor is calculated with "Calibration".
The new gain factor is checked for plausibility and stored in the buffer memory. The current measured value
is output with the new gain factor and the sensor element sensibility is updated.
•With "Save" the new gain factor is written in the SC memory, only then the gain calibration has been
successfully completed. If you exit the menu without pressing "Save", the original gain data for the
measured value calculation will continue to be used.
By limiting the gain factor, calibration will not be possible anymore when the sensitivity of the sensor
reaches a residual sensitivity of 40 %. Then the Sensor Cartridge has to be replaced
For more information, see the user manual of the DPT6 EasyConfig Software.
4.6 Exchange of Sensor Cartridge
Instead of the on-site calibration, the used SC can be easily and conveniently replaced by a calibrated one.
The communication of the local bus (Sensor Cartridge <> BSB) is continuously monitored during
operation and results in an immediate error message on the gas controller in case of fault or
interruption. When replacing the sensor unit, the communication of the local bus is also
interrupted when unplugging the SC connector which leads to an immediate triggering of the
error message.
•Disconnect the SC connector from the BSB or the RSB (error message will be activated).
•Loosen the locknut.
•Remove used SC.
•Take calibrated SC out of the original packaging, check for gas type, measuring range and valid
calibration date.
•Insert the SC and retighten with lock nut.
•Insert the SC plug into the socket at the BSB or RSB. Check plug for proper engagement.
The local bus communication is automatically established and tested. At the same time the gas type and the
measuring range of the "new" SC are compared with the data stored in the BSB. If they match and the
communication is correct, the error message will be automatically acknowledged at the Gas Controller.
The yellow LED of the BSB flashes with a pulse duration of 1 sec., while the SC connector is disconnected
(communication error). After the local bus communication has been re-established and the conformity test
has been successful, the LED will go into flashing mode with 3 sec. pulse duration.
•Perform functional test of the exchanged SC with gas generator. On successful completion of the
test, the flashing LED goes off after approximately 10 sec.
The sensor element is treated with a defined gas concentration with the help of the gas generator. As a result
the measurement signal acknowledges the LED when an internal switching threshold is reached. With this
test, the complete function chain “Sensor Element > Sensor Cartridge> Local Bus> BSB> Field Bus> GC
Controller”is tested.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

5 Inspection and Service
Regular maintenance and calibration of the sensorsby trained technicians is recommend. See SC2
datasheet for requirements.
According to EN 45544-4, inspection and service has to 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. 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.
5.1 Inspection
Gas sensors should be controlled regularly by a competent person according to EN 45544-4. The following
has to be checked in particular:
•Maintenance / calibration interval not exceeded.
•Visual inspection of the sensor including cable for damage, vandalism etc.
•Remove dust deposits, especially at the gas inlet.
•The filter at the gas inlet has to be replaced if extremely dirty.
•Check the Unit including measuring head for dust, dirt and moisture deposits and clean it with a dry
cloth if necessary.
5.2 Service and Calibration
When performing the maintenance, you have to do the calibration and the functional test in addition to the
inspection. See section 4.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

6 Troubleshooting
6.1 DT6 Basic Sensor Board
Trouble Cause Solution
Green LED isn’t on.
Power voltage not applied
Measure tension at X4:
(16-28 V DC) Pin 1 (+) and 2 (-)
Polarity not correct at X4 Connect correctly.
Connector X4 not plugged in Check the plug.
Wire breakage Check the wiring.
Green LED doesn’t flash.
BSB hasn’t got any address.
Check BSB address, address
correctly.
BSB: no field bus communication
Check field bus wiring,
topology and termination.
No measured value at the Tool or
Controller
SC not or wrongly plugged in Check SC plug.
SC not registered
Register SC.
SC gas type/measuring range doesn’t
match with registered ones.
Check SC data<> registration
data for conformity.
Message at the Tool / Controller:
- 24 V DC voltage <range>
- 5 V DC voltage <range>
- Temp. <range>
- WatchDog triggered
Internal error Replace BSB.
6.2 Sensor Cartridge (Messages at the Tool/Controller)
Measuring signal <range>
Internal error Replace SC.
5 V DC voltage < range >
Temp. < range >
WatchDog triggered.
SC Input 1 stored type Wrong SC type at input 1 Check SC at input 1, replace it.
SC Input 2 stored type Wrong SC type at input 2 Check SC at input 2, replace it.
SC Input 3 stored type Wrong SC type at input 3 Check SC at input 3, replace it.
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

All specifications were collected under optimal test conditions.
We confirm compliance with the minimum requirements of the applicable standard.
7 Technical Data
7.1 DT6 Basic Sensor Board (BSB)
ELECTRICAL
Power supply
16–29 V DC, reverse-polarity protected
Power consumption (24 V DC)
10 mA (0.24 VA)
Output for local bus
5 V DC, 250 mA max.
Overload, short-circuit and reverse-polarity protected
Overvoltage category
I
SERIAL INTERFACE
Local bus
1-wire / 19200 Baud
Field bus
RS-485 / 19200 Baud
Tool bus
2-wire / 19200 Baud
AMBIENT CONDITIONS
Temperature range
-35 °C to +60 °C (-31 °F to 140 °F)
Humidity range
15–90 % RH not-condensing
Pollution degree
2 (installation only indoors), not suitable for wet environment
Permissible height above sea level
1500 m (ca. 5000 ft.)
Storage temperature
5 °C to 40 °C (41 °F to 104 °F)
Storage time
6 months
PHYSICAL
Housing
Type A
Material
Polycarbonate
Burning behaviour
UL 94 V2
Housing colour
RAL 7032 (light grey)
Dimensions W x B x D
94 x 130 x 57 mm (3.7 x 5.1 x 2.2 in.)
Weight
0.3 kg (0.7 lb)
Protection class (delivery status)*
NEMA 4X (IP 65)
Installation
Wall mounting
Wire connection: Field bus
Local bus for SC
Screw-type terminal min. 0.25 mm2, max. 2.5 mm2 (24 to 10 AWG)
3-pin connector
Cable lengths local bus for Remote Board
Max. 5 m (16.4 ft.)
Knockout for integration of SC
3 x M25 for M25 housing
REGULATIONS
Directives
EMC directives 2014/30/EU
CE
EN 61010-1:2010
Conformity to:
EN 50271
Option:
ANSI/UL 61010-1
CAN/CSA-C22.2 No. 61010-1
Warranty
1 year on sensor (not if poisoned or overloaded)
2 years on device
OPTIONS
DISPLAY
LCD
Two lines, 16 characters each, background highlighted in 2 colours
Operation
Menu driven via six pushbuttons
Power consumption
5 V, 60 mA, 0.3 VA
STATUS-LED/BUZZER
Colour / mode
Red (fault)
Acoustic pressure
> 85 dB (A) (0.1 m distance)
Frequency
2300 Hz
Protection class
IP65
*If there are changes on the housing it has to be re-evaluated
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

8 Figures
Fig 1: Electrical connection of field bus Fig 2 Basic Sensor Board with Sensor Cartridge
and optional local bus and with option Remote Sensor Board
Fig 3: Electrical connection with option analog output
+ 5 VDC
0 VDC
L_Bus
12 34
0 VDC
24 VDC
Bus_A
Bus_B
Bus_B
DR6 Remote Sensor Board
Bus_A
X 71 2 3 X7 123
24 VDC
0 VDC
X4
DT6 Basic Sensor Board
Local Bus
(only for Remote
Sensor Boar d)
F iel d
Bus
1 2 3 4
0 VDC
24 VDC
Bus_A
Bus_B
Bus_B
Bus_A
24 VDC
0 VDC
Analog
Output
4 - 20 mA
0 VDC
Field Bus
123
50 0 *Ω
* Remove resistor,
if device is connected
X2 X2
X7 X7
X3
33 21 21
Remote Sensor Board
Operating Voltage & Fiel d Bus
Local
Bus
SC_2
SC_2
SC_2
X4
2
3
1
4
Basic Sensor
Board
Service
Tool
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

Fig. 3
Mounting possibilities
Fig. 4
Housing knockouts
X2 X2X2 X3 X3
X4
4321
X4
4321
X7
321
X7
321
X7 321
Basic Sensor Board Basic Sensor Board
Rem ote Sensor Boar d
B asi c S enso r B asi c S enso rRem ote Se nso r
Local
Bus
Field Bus
Basic Sensor Board witht two Sensor Cartridge
Basic Sensor Board with tw o Sensor SC & Remote Sensor Board with Sensor Cartridge
Field Bus
M25 M12 M25 M25 M25
M25
M20 M20
M12
SC SC
SC
SC SC
Basic Sensor Board with Sensor Cartridge Basic Sensor Board with SC & Remote Sensor Board with SC Basic Sensor with SC & two Remote Sensor Board with SC
X2 X2 X2
X2 X2X2
X3 X3 X3
SB_0 3 SB_ 0 3 SB_ 0 3
SB_0 3 SB_ 0 3
SB_0 3
X4
4321
X4
43
21
X4
4321
X7 321 X7 321 X7 321
X7 321 X7 321
X7 321
Basic
Sensor Board
Basic
Sensor Board
Basic
Sensor Board
Remote
Sensor Board
Remote
Sensor Board
Remote
Sensor Board
Basic Sen sor
Local
Bus
Local
Bus
Local
Bus
Remote Sensor Remote SensorRe mo te Sen sor
Field Bus Field Bus Field Bus
M25 M25 M25M12
M12 M12
M12
M12
M12M25 M25
M25
M20 M20 M20
Basic Sen sor Basic Sen sor
SCSCSC
SCSC
SC
M20
M20
M25
M20
M12/M20M12/M20
M25
M25 M20
M12M12
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – UserManual

Fig. 5
Housing dimensions
Fig. 6
Calibration adapter
X2 X3
X7 X4
94 mm
79 mm
Mounting
Mounting
Mounting
Mounting
115 mm 130 mm 180 mm
D = 4 mm
INTEC Controls | 12700 Stowe Drive, Suite 100, Poway, CA 92064 | Ph: [phone] & (888) GO.INTEC | inteccontrols.com
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DT6 – 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 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®2devices 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 and MSR-Electronic GmbH 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®2I 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 must be
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 and MSR-Electronic GmbH warrants the PolyGard®2 devices for a period of two (2) year from
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
preauthorized 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 and MSR-Electronic GmbH 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. | GASB2_03_E_0220 | USA 200306 | Page 15 of 15
DT6 – UserManual