User Manual - INTEC Controls

User Manual - INTEC Controls
PolyGard DT5-3300 V1
Transmitter for Combustible Gases
Serial No. DT5-3300
User Manual
January, 2009
September 16, 2014 – Revision
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 02
1 Intended Use ....................................................................................................................................... 3 2 Functional Description ...................................................................................................................... 3 2.1 2.2 3 Installation .......................................................................................................................................... 4 3.1 3.2 4 Mounting Instructions ................................................................................................................. 4 Installation .................................................................................................................................. 4 Electrical Connection ........................................................................................................................ 5 4.1 5 Control Mode .............................................................................................................................. 3 Sensor ........................................................................................................................................ 3 Wiring Connection ...................................................................................................................... 5 Commissioning .................................................................................................................................. 5 5.1 Calibration .................................................................................................................................. 6 5.2 Manual Calibration ..................................................................................................................... 6 5.2.1 Zero-point................................................................................................................................ 6 5.2.2 Gain ........................................................................................................................................ 6 5.2.3 Calculation of Control Voltage ................................................................................................ 6 5.3 Calibration with DGC5_EasyConf .............................................................................................. 7 5.4 Calculation calibration gas < >target gas (backup calibration) .................................................. 7 5.5 Cross-sensitivity data ................................................................................................................. 8 5.6 Addressing.................................................................................................................................. 8 5.7 Option Relay Output ................................................................................................................... 8 6 Inspection and Service ...................................................................................................................... 9 6.1 6.2 6.3 7 Inspections ................................................................................................................................. 9 Calibration .................................................................................................................................. 9 Exchange of Sensor Element ..................................................................................................... 9 Troubleshooting ................................................................................................................................. 9 7.1 DGC5_Bus Mode ....................................................................................................................... 9 8 Technical Data .................................................................................................................................. 10 9 Figures .............................................................................................................................................. 12 10 Notes and General Information....................................................................................................... 15 10.1 10.2 10.3 10.4 Intended Product Application ................................................................................................ 15 Installers’ Responsibilities .................................................................................................... 15 Maintenance ......................................................................................................................... 15 Limited Warranty ................................................................................................................... 15 Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 03
Transmitter with cathalytic bead sensor for combustible gases and vapours
1 Intended Use
The PolyGard gas transmitter with digital processing of the measuring values and temperature compensation
is used for the continuous monitoring of the ambient air to detect the presence of combustible gases and
vapours, such as natural gas, methane, propane, butane and ammonia etc. below the lower explosion limit
(LEL). The transmitter is used for monitoring leakages in gas pipes, gas fan heaters, gas heating systems, gas
engines (block heating stations), gas boilers, gas fittings, gas transfer stations, gas valves, natural-gas fuelling
stations, domestic gas boiler installations, gas operated vehicles in underground car parks etc.
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.
The PolyGard® DT5-3300 transmitter must not be used in potentially explosive atmospheres.
2 Functional Description
2.1 Control Mode
The transmitter can be connected to the PolyGard® DGC5 system via the RS-485 interface. In this mode there
is an analog input for the connection of an additional 4-20 mA transmitter. The two measuring values are
transmitted via the RS-485 interface to the gas controller.
The cable topology for the RS-485 bus can be taken from the “Guidelines for wiring and commissioning of
DGC5 hardware”.
2.2
Sensor
The integrated sensor works according to the catalytic bead principle. The ambient air being monitored diffuses
through a sintered metal disk into the sensor. Here the combustible gases and vapours are burned by catalytic
means at a heated detector element (pellistor). The resulting combustion heat also heats up the detector
element. This heating changes the resistance of the detector element which is proportional to the partial
pressure of the combustible gases.
In addition to the catalytic detector element, the sensor also has a similarly heated inactive compensator
element. Both elements are part of a Wheatstone measuring bridge. Environmental influences such as
temperature, ambient moisture or thermal conductivity of the monitored ambient air affect both elements to the
same extent so that the influences on the measuring signal are almost completely compensated.
The integrated measuring amplifier converts this sensor current into a linear output signal. The zero point
(Zero) and the amplification (Gain) are calibrated by potentiometers or via the software set.
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 04
Certain substances and gases in the monitored ambient can affect the sensitivity of the sensor, or poison the
sensor completely.
The following are currently known:
- polymerising substances, such as ethylene oxide, acrylonitrile, butadiene, styrene, silicone.
- corrosive substances, such as halogenated hydrocarbons.
- catalytic poisons, such as sulphur and phosphorus compounds, silicon compounds, metal vapours.
Caution:
There is a small quantity of corrosive liquid in the sensor element. If in case of damage a person or an area
comes in contact with the liquid, the affected person or area must wash the liquid off with water immediately.
Out of use sensors must be disposed in the same way as batteries.
3 Installation
Note:
Avoid any force (e.g. by thumb) on the sensor element during operation or installation. Electronics can be
destroyed by static electricity. Therefore, do not touch the equipment without a wrist strap connected to ground
or without standing on a conductive floor.
3.1 Mounting Instructions
When choosing the mounting site please pay attention to the following:
 The mounting height depends on the gas type to be monitored.
For gases and vapours with a density > air, the transmitter must be located near the ground.
For gases and vapours with a density < air, the transmitter must be located at the highest point
possible. Gas density and mounting height can be read from the table Cross-sensitivity data.

Choose mounting location of the sensor according to the local regulations.

Consider the ventilation conditions! Do not mount the transmitter in the centre of the airflow (air
passages, suction holes).

Mount the transmitter 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.
Duct mounting

Mount only in a straight section of duct with minimum air vortex. Keep a minimum distance of 1 m (3.5
feet) from any curve or obstacle.

Mount only in a duct system with a maximum air velocity of 10 m/s (2000 ft/min) or less.

Mounting must be performed so that the probe openings are in line with the airflow.
3.2 Installation

Open the cover. Unplug basic PCB carefully from the bottom part.

Fix bottom part by screws vertically to the wall (terminal blocks to the ground).

Plug in the basic PCB at X4 and X5 with care. Replace the cover.
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 05
4 Electrical Connection
Consider static electricity! See 3.1 Mounting

Installation of the electrical wiring should only be performed by a trained specialist according to the
connection diagram, without any power applied to conductors and according to the corresponding
regulations!

Avoid any influence of external interference by using shielded cables for the signal line, but do not
connect the shield.

It is important to ensure that the wire shields or any bare wires do not short the mounted PCB.

Required cable for RS-485 mode: 18 AWG shielded twisted cable.
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.
4.1 Wiring Connection

Open the cover. Unplug basic PCB carefully from terminal blocks at X4 and X5.

Insert the cable; connect cable leads to terminal blocks. See fig. 1.

Replug the PCB in the terminal blocks X4, X5. Replace cover.
5 Commissioning
Consider commissioning instructions at any exchange of sensor elements.
Only trained technicians should perform the following:

Check mounting location.

Select output signal form: Current or voltage, and starting point 0 or 20%. See fig. 3.

Check power voltage.

Check PCB DT5-3300 for proper mounting at X4 and X5.

Addressing of the transmitter in the DGC-05_Bus mode.

Calibrate the transmitter (if not already factory-calibrated).
Required instruments for commissioning (calibration) of the transmitter:

Test gas bottle with synthetic air (20.8% O2 or 99.9% Nitrogen).

Test gas bottle with test gas (methane etc.) in the range of 30 – 60 % of the measuring range.

Gas pressure regulator with flow meter to control the gas flow to 150 ml/min.

Calibration adapter with tube, (silicon-free, e.g. Viton). Calibration set Conkit-COMB-AT. See fig. 04.

Digital voltmeter with range 0 – 10VDC, accuracy 1% and a small screwdriver.

DGC5_EasyConf configuration and calibration software incl. USB/RS-485 communication set (for
software calibration mode).
Note: Prior to calibration the sensor element must be fully stabilized by applying power voltage for at least 4
hours without interruption.
Please observe proper handling procedures for test gas bottles!
Attention: Combustible calibration gases are toxic, never inhale the gas!
Symptoms: Dizziness, headache and nausea.
Procedure if exposed: Take the victim into fresh air at once, call a doctor.
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 06
5.1 Calibration
Depending on the version and the control mode there are two different possibilities to calibrate the transmitter:
Manual calibration
Manual calibration is only possible if the transmitter is equipped with the push-button “Zero” and the
potentiometer “Gain” (= version for manual calibration).
In the DGC5_Bus mode the jumper V-A has to be set before manual calibration. Only by doing so the control
voltage is available at the test pins X6. Remove the jumper after calibration
Software calibration via PC with Software DGC5_EasyConf
In the standard version (equipped with the communication connector X12) calibration can also be done by
means of the configuration and calibration software DGC5_EasyConf.
5.2 Manual Calibration
5.2.1 Zero-point

Connect calibration adapter carefully to the sensor element.

Apply synthetic air (150 ml/min; 1 Bar (14.5 psi ) ± 10%).

Wait 2 minutes until the signal is stable, push button “Zero” for 5 seconds.
After successful calibration the measuring signal is corrected automatically. Depending on the
selected signal starting point the measuring signal shows the following values:
Signal start at 2 V or 4 mA
40 mV = 0 ppm
Signal start at 0 V or 0 mA
0 mV = 0 ppm
If the zero-point is out of the admissible range (> 20 mV at starting point 0% / > 60 mV at starting
point (20%) before calibration, there is no correction of the measuring signal. The sensor has to be
replaced.

Remove calibration adapter carefully by turning lightly. Check the sensor for correct mounting!
5.2.2 Gain

Connect calibration adapter carefully to the sensor element.

Apply calibration test gas (150 ml/min; 1 Bar (14.5 psi) ± 10%).

Wait two minutes until the signal is stable, adjust control voltage with potentiometer ”Gain” until the
signal corresponds to the calculated value ± 3 mV, see calculation section 5.2.3.

Remove calibration adapter with a careful light turn. Check the sensor for correct mounting!
By limiting the gain factor, calibration will not be possible any more when the sensitivity of the sensor
reaches a residual sensitivity of 30 %. Then the sensor has to be replaced.
5.2.3 Calculation of Control Voltage
Signal start 2 V / 4 mA
Control voltage (mV)
=
160 (mV) x test gas concentration (% LEL)
measuring range (% LEL)
=
200 (mV) x test gas concentration (% LEL)
measuring range (% LEL)
+ 40 (mV)
Signal start 0 V / 0 mA
Control voltage (mV)
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 07
Example:
Measuring range
100 % LEL
Test gas concentration
40 % LEL (methane)
Control voltage: Signal start 2 V / 4 mA
104 mV
Control voltage: Signal start 0 V / 0 mA
80 mV
5.3
Signal start 2 V / 4 mA
Signal start 0 V / 0 mA
160 (mV) x 40 (% LEL) + 40 (mV) = 104 mV
100 (% LEL)
200 (mV) x 40 (% LEL)
100 (% LEL)
= 80 mV
Calibration with DGC5_EasyConf

Connect the PC via USB/RS-485 communication set to the transmitter, open menu “Calibration”.

Enter measuring range and test gas concentration.

Connect calibration adapter carefully to the sensor element

Apply synthetic air (150 ml/min; 1 Bar (14.5 psi ) ± 10%).

Wait until the measuring value is stable, and then perform automatic zero calibration.

Apply calibration gas (150 ml/min; 1 Bar (14.5 psi) ± 10%).

Wait until the measuring value is stable, and then perform automatic gain calibration.
Remove calibration adapter carefully by turning lightly. Check the sensor for correct mounting!
By limiting the gain factor, calibration will not be possible any more when the sensitivity of the sensor
reaches a residual sensitivity of 30 %. In this case the sensor has to be replaced.
Further information can be taken from the user manual of the DGC5 Configuration and Calibration Software.

5.4
Calculation calibration gas < >target gas (backup calibration)
ÜWGas = KALGas x ( KGas / ÜGas)
Example:
Calibration gas
Target gas
30 % LEL/methane x (100/63)
ÜWGas = Target gas % LEL
KALGas = Calibration gas % LEL
KGas = Factor relative sensitivity % LEL calibration gas
ÜGas = Factor relative sensitivity % LEL target gas
30% LEL/Methane
Propane
47.6% LEL/Propane
The factor of the relative sensitivity can be read from the table cross sensitivity data.
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
5.5
Page 08
Cross-sensitivity data
Type of gas/vapour
Chemical mark
Acetone
Acetylene
Benzene
Cyclohexane
Ethylene
Ethane
Ethyl Alcohol
Ethyl Acetate
Hydrogen
Isopropyl Alcohol
JP8
Methane
Methanol
n-Butane
n-Heptane
n-Hexane
n-Octane
Propane
n-Pentane
(CH3)2CO
C2H4
C6H6
C6H12
CH2
C2H6
C2H5OH
CH3COOC2H5
H2
(CH3)2CHOH
1
CH4
CH3OH
C4H10
C7H16
C6H14
C8H18
C3H8
C5H12
Sensitivity1 %
% LEL/Methane
50
47
44
44
81
82
75
46
107
100
84
51
44
46
38
63
50
according to information of the sensor manufacturer.
LEL/
% v/v
2,60
2,00
1,30
1,30
2,30
3,00
3,30
2,20
4.00
2.20
0,9
4,40
6,70
1.80
1.05
1.02
0,95
2,10
1,40
Gas Density Mounting
Air = 1
high
2,00
Floor
0,90
Ceiling
2,70
Floor
2,91
Floor
0,98
Ceiling
1,05
Floor
1,59
Floor
3,04
Floor
0,07
Ceiling
2,08
Floor
0,55
1,11
2,11
3,46
2,98
1,66
1,55
2,49
Ceiling
Floor
Floor
Floor
Floor
Floor
Floor
Floor
The table does not claim to be complete. Other gases can have an influence on the sensitivity, too.
The indicated sensitivity data are only standard values referring to new sensor elements.
5.6 Addressing
In the DGC5_Bus mode each transmitter gets its communication address.
In the standard version with the communication connector X12, addressing is done by means of the DGC5
Configuration and Calibration Software. See user manual or data sheet for the Configuration and Calibration
Software.
5.7 Option Relay Output
The two relays are activated in dependence of the gas concentration. If the gas concentration exceeds the
adjusted alarm threshold, the corresponding relay switches on. If the gas concentration falls below the
threshold minus hysteresis, the relay switches off again.
The contact function for relay 2, NC (normally closed) or NO (normally open), can be selected via the jumper
NO/NC. See fig 2. Relay 1 is equipped with a change-over contact.
Via the MODBus interface the two alarm thresholds and the hysteresis are freely adjustable at the PC within
the measuring range. The procedure can be read from the user manual “MODBus Software”.
The following parameters are factory-set.
Alarm threshold 1 = Relay 1:
Alarm threshold 2 = Relay 2:
Switching hysteresis:
10 % LEL
20 % LEL
5 % LEL
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 09
6 Inspection and Service
6.1 Inspections
Inspection, service and calibration of the transmitters should be done by trained technicians and executed at
regular intervals. We therefore recommend concluding a service contract with one of our authorized partners.
6.2 Calibration
(See section 5.1 and 5.2)

At commissioning and at periodic intervals determined by the person responsible for the gas detection
system (recommendation every 6 months).

After exchange of the sensor

If in case of operational or climatic influences the sensitivity of the sensor falls below 70 % in
operation, calibration will not be possible any more. Then the sensor has to be changed.
6.3 Exchange of Sensor Element
Consider static electricity! See point 3.
Sensor should always be installed without power applied:

Unplug basic PCB DT5-3300 carefully from the bottom part.

Unplug old sensor from the PCB.

Take the new sensor out of the original packing.

Plug in the sensor element into the PCB.

Replug the PCB DT5-3300 into terminal blocks X4, X5 carefully.

Calibrate according to section 5.
7 Troubleshooting
7.1 DGC5_Bus Mode
Trouble
Cause
Solution
Yellow LED not shining
Power voltage not applied
Measure voltage at X4:
Pin 1 (+) and 2 (-)
PCB not plugged in correctly at X4/X5
Replug PCB correctly
Wire break
Check wiring
Yellow LED not flashing
No communication at the transmitter
Transmitter not addressed,
check
bus
wiring
incl.
topology and termination
Voltage < 16 V
No control voltage at calibration
Jumper V-A not set
Set the jumper. Remove it
after calibration!
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 10
8 Technical Data
General sensor performances
Gas type
Sensor element
Pressure range
Storage temperature range
Storage time
Mounting height
Measuring range
Accuracy
Long-term zero drift
Long-term sensitivity drift
Response time
Life expectancy
Temperature range
Temperature drift
Humidity
Electrical
Power supply
Power consumption (without options)
Serial interface
Transceiver
Protocol
Physical
Enclosure*
Enclosure colour*
Dimensions* (H x W x D)
Weight*
Protection class*
Mounting*
Cable entry
Wire connection
Wire distance
Combustible gases / vapours
See Ordering Information
Ex-sensor, catalytic bead
Atmosphere ± 20 %
5 °C to 30 °C (41 °F to 86 °F)
Max. 6 months
Depending on gas type
DT5-3300
0 – 100 % LEL
± 1 % of signal/methane
< 5 % measuring range/year
< 1.5 % measuring range/year
t90 < 50 sec./methane
> 3 years/normal operating environment
- 20 °C to + 50 °C (- 4 °F to 122 °F)
 1%
5 – 95 % RH non condensing
16 – 28 VDC/AC, reverse polarity protected
35 mA, max. (0.85 VA)
RS 485 / 19200 Baud
MSR_DT05
Stainless steel V2A
Natural, brushed
113 x 135 x 45 mm / (5.35 x 4.5 x 1.8 in.)
Approx. 0.5 kg (1.1 Ibs.)
IP 55
Wall mounting, pillar mounting
Standard 1 x M 20
Screw-type terminal min. 0.25 to 2.5 mm2
24 to 14 AWG
Current signal ca. 500 m (1500 ft.)
Voltage signal ca. 200 m (500 ft.)
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Guidelines
Relay output
Alarm relay 1 (switch threshold 10 % LEL)
Alarm relay 2 (switch threshold 20 % LEL)
Power consumption
Warning buzzer
Acoustic pressure
Frequency
Power consumption
LCD-Display
LCD
Power consumption
Heating
Temperature controlled
Ambient temperature
Power supply
Power consumption
Analog input
Only for RS-485 mode
Voltage for external analog transmitter
Page 11
EMC Directive 2004 / 108 / EWG
CE
Options
30 VAC/DC 0.5 A, potential-free, SPDT
30 VAC/DC 0.5 A, potential-free, SPNO/SPNC
30 mA, (max. 0.8 VA)
83 dB (distance 200 mm) (0.7 ft.)
2.3 kHz
30 mA, (max. 0.8 VA)
Two lines, 16 characters each, not illuminated
10 mA, (max. 0.3 VA)
3 °C ±2°C (37.5 °F ± 3.6 °F)
- 30 °C (- 22 °F)
18 – 28 VDC/AC
0.3 A; 7.5 VA
4 – 20 mA overload and short-circuit proof, input
resistance 200 
24 VAC/DC depending on the power supply
max. load 50 mA
* Indications only for "stainless steel" option; for further types see AT-DT Enclosure datasheet.
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 12
9 Figures
Application: DGC5_Bus mode
Fig. 1
Option
7 Bus_B
Relay
6 Bus_A
1
5 4-20 mA_Inp
R1
2
4 Analog_Out
3
3 24 VDC_Out
4
2 0 VDC
5
1 24 VDC
R2
X4
X5
Transmitter
ADTX3
24 VDC
0 VDC
Bus_A
Bus_B
NO NC
Analog
Transmitter
4-20 mA
0 VDC
24 VDC
NO NC
Option
7 Bus_B
Relay
6 Bus_A
1
5 4-20 mA_Inp
R1
2
4 Analog_Out
3
3 24 VDC_Out
4
2 0 VDC
5
1 24 VDC
R2
X4
X5
Transmitter
ADTX3
Connection field bus and tension
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
Connection analog transmitter
- Two- or three-wire connection
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 13
PCB DT5-3300
Fig. 2
1
X4
Anal. Output
= V DC
= mA
Sensor
XA3-1
XA3-2
ET03_001
= NO
= NC
1
2
NO/NC
Function Relay R2
V-A
2
X5
NO NC
Test
Bridge
5
Zero
3
4
5
Option
Relay
R2 R1
6
3
0-20%
Connector
Service Tool
Gain
Option
Manual
Calibration
7
4
Anal. Output
Start Point
= 20 %
=0%
Terminal block
1 2 3 4 5
1 2 3 4 5 6 7
X4
X5
Selection analog output signal
Fig. 3
Jumper 0- 20 %
Jumper V-A
Output signal
Not set
Not set
0 – 20 mA
Set
Not set
4 – 20 mA
Not set
Set
0 – 10 V
Set
Set
2 – 10 V
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 14
Calibration adapter
Fig. 4
Type: CONKIT-COMB-AT
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
PolyGard® Combustible Gas Transmitter
User Manual - DT5-3300 V1
Page 15
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® transmitters must be used within product specification capabilities. The appropriate
operating and maintenance instructions and recommendations must be followed.
Due to on-going product development, MSR 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 this data.
10.1 Intended Product Application
The PolyGard® DT5 transmitters are designed and manufactured for control applications and air quality
compliance in commercial buildings and manufacturing plants (i.e. detection and automatic exhaust fan control
for automotive maintenance facilities, enclosed parking garages, engine repair shops, warehouses with forklifts,
fire stations, tunnels, etc.).
10.2 Installers’ Responsibilities
It is the installer’s responsibility to ensure that all PolyGard® DT5 transmitters 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, the codes, standards and proper safety procedures for control
installations, as well as the latest edition of the National Electrical Code (ANSI/NFPA70). It is also essential to
strictly follow all instructions as provided in this user manual.
10.3 Maintenance
It is recommended to performance check the PolyGard® DT5 transmitter regularly. With regular maintenance,
any performance deviations may easily be corrected. Re-calibration and part replacement in the field may be
implemented by a qualified technician with the appropriate tools. Alternatively, the easily removable plug-in
transmitter card with the sensor may be returned for service to INTEC Controls.
10.4 Limited Warranty
MSR-Electronic-GmbH and INTEC Controls warrants the PolyGard® transmitter for a period of two years,
12 months normal exposure for the sensor, from the date of shipment against defects in material or workmanship.
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.
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® transmitter. MSR-Electronic-GmbH and/or INTEC Controls shall
not be liable for any incidental or consequential damages arising out of or related to the use of the PolyGard®
transmitter.
If the PolyGard® transmitter needs to be returned to INTEC Controls for service, an RMA number must be
obtained prior to sending.
Polygard® is a registered trademark of MSR
Customer Services (858) 578-7887 & (888) GO INTEC
Fax (858) 578-4633 & (888) FX INTEC
www.inteccontrols.com
INTEC Controls, 12700 Stowe Dr., Suite 100, Poway, CA 92064
DT5-3300UM
Specification subject to change without notice.
Printed in USA 140916
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