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Installation Instruction Manual

Indoor CO2 Sensor

DSW-200-CO2

No.DSW25JE5 2022.08

PrefaceThank you for purchasing our DSW-200-CO2, Indoor CO2 Sensor.
This manual contains instructions for installation and handling of the DSW-200-CO2. To ensure safe andcorrect use, thoroughly read and understand this manual before using this sensor. To prevent accidents arisingfrom the misuse of this instrument, please ensure the operator receives this manual.

Notes• This instrument should be used in accordance with the specifications described in the manual. If it is not usedaccording to the specifications, it may malfunction or cause a fire.
• Be sure to follow all of the warnings, cautions and notices. If they are not observed, serious injury ormalfunction may occur.
• The contents of this instruction manual are subject to change without notice.
• Care has been taken to ensure that the contents of this instruction manual are correct, but if there are any
doubts, mistakes or questions, please inform our sales department.
• Any unauthorized transfer or copying of this document, in part or in whole, is prohibited.
• Shinko Technos Co., Ltd. is not liable for any damage or secondary damage(s) incurred as a result of using
this product, including any indirect damage.

Safety Precautions (Be sure to read these precautions before using our products.)

The safety precautions are classified into 2 categories: “Warning” and “Caution”.
Depending on the circumstances, procedures indicated byCaution may result in serious consequences,so be sure to follow the directions for usage.

Warning

Procedures which may lead to dangerous conditions and cause death or serious injury, if not carriedout properly.

CautionProcedures which may lead to dangerous conditions and cause superficial to medium injury or physicaldamage or may degrade or damage the product, if not carried out properly.

Warning• To prevent an electrical shock or fire, only Shinko or other qualified service personnel may handle theinner assembly.
• To prevent an electrical shock, fire or damage to the instrument, parts replacement may only beundertaken by Shinko or other qualified service personnel.

SAFETY PRECAUTIONS• To ensure safe and correct use, thoroughly read and understand this manual before using thisinstrument.
• This instrument is intended to be used for general equipment. Verify correct usage after purpose-of-use
consultation with our agency or main office.
(Never use this instrument for medical purposes with which human lives are involved.)• External protection devices must be installed, as malfunction of this product could result in serious
damage to the system or injury to personnel. Proper periodic maintenance is also required.
• This instrument must be used under the conditions and environment described in this manual.
Shinko Technos Co., Ltd. does not accept liability for any injury, loss of life or damage occurring due tothe instrument being used under conditions not otherwise stated in this manual.

Caution with Respect to Export Trade Control Ordinance

To avoid this instrument from being used as a component in, or as being utilized in the manufacture ofweapons of mass destruction (i.e. military applications, military equipment, etc.), please investigate theend users and the final use of this instrument.
In the case of resale, ensure that this instrument is not illegally exported.
11. Model

1.1 Model
Model DSW-200Measuring object

CO2-12

Measurement range

Output spec

Moisture-proof coating

123
4
50
1

CO2 concentration
360 to 2000 ppm (with Sensor Correction Function)
360 to 5000 ppm (with Sensor Correction Function)
4 to 20 mA DC
0 to 20 mA DC
1 to 5 V DC
0 to 5 V DC
0 to 1 V DC
Not needed
Needed1.2 How to Read the Model Label
Model label is attached to the inside of the case.
12123(Fig. 1.2-1)

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Model
Measurement range, Output
Power supply voltage, Power consumption
Serial number

4

2. MountingCaution

Turn the power supply to the instrument OFF before wiring, otherwise it may result in a malfunction.
Installation site should be examined, giving careful consideration to the following conditions.
Please note that this product is designed for indoor use only.
[This instrument is intended to be used under the following environmental conditions.]• Mount on a wall about 1.5 m high above the floor, in average temperature and humidity• 0.1 to 0.15 m/s of ambient wind velocity• Sufficient space for maintenance in front of the sensor• Install in a location where heat does not stay on such as near OA equipment.
• No furniture, fixtures or doors to block air flow
• No draft, downdraft, or cool/warm air from water pipes/ducts• A minimum of dust, and an absence of corrosive gases• No flammable, explosive gases• Few mechanical vibrations or shocks• No exposure to direct sunlight, an ambient temperature of 0 to 50 (32 to 122 ) without rapid change,
and no icing• An ambient non-condensing humidity of 0 to 95 %RH• An absence of chlorinated and sulfidizing gases• No water, oil, chemicals or the vapors of these substances can come into direct contact with the sensor.

Maintenance• Check and clean the main unit cover thoroughly once a year.
• Change the sensor when no output occurs.

2(1) Fixing the Mounting Plate

Mounting Plate

Screw either (A) or (B), and fix the Mounting Plate
to the outlet box, via outlet box cover locatedinside the wall.
For screws, use M4 screw (2 pieces) and spring
washer provided.

(A)
(B)

(2) Wiring

Connect the main unit lead wire tothe wire from the wall side.

(B)
(A)

(C)

(C)

Main Unit(C)(C)(3) Mounting Main Unit

Screw 4 places (C) as indicated by the dotted lines,
and fix the sensor main unit to the Mounting Plate.
For screws, use M3 screw (4 pieces) provided.

(4) Fitting Main Unit CoverMain Unit CoverInsert the main unit cover protrusion (2 places) into
the cover mounting holes (2 places) located on theupper part of the sensor main unit, then fit the coverto the sensor main unit.

3. Wiring(Fig. 3-1)

4. Operation Checking
Sensor status and output are described.

(Table 4-1)

5. Specifications
Measurement Range
OutputLead Wire Color
BRW: Brown
BLK: Black
RED: Red
WHT: White++-Lead Wire Type

Sensor Status
Initial operation
Sensor is operating normally.
Sensor is out of order.

OutputOutput low limit value
Output low limit to Output high limit
Output high limit value +10 %FS

Power supply
Output

360 to 2000 ppm, 360 to 5000 ppm (must be specified)
4 to 20 mA DC, 0 to 20 mA DC, 1 to 5V DC, 0 to 5V DC, 0 to 1V DC (must be specified)[Output of CO2 Sensor]
For each range of CO2 concentrations, linearly outputs
corresponding to CO2 concentration.
However, if the measured value is lower than 360 ppm,
the value corresponding to 360 ppm will be output.

(Fig.1) Measurement range: 360 to 2000 ppm
Output: 4 to 20 mA
(mA)
20.00

6.88
4.00
0 360

2000 (ppm)

Power Supply Voltage 24 V DC 10%
Measurement Method Non-dispersive infrared (NDIR)
To the outlet box (inside wall), via outlet box cover: Mounting dimension: 66.7 mm
Mounting(JIS C8340: 1999) (JIS: Japan Industrial Standards)
Material
Flame-resistant PC resin, Color: WhiteWiring
Lead wire: 300 mm Cross-section area: 0.5 mm2 See “3. Wiring” for details.
Accuracy(50 ppm + 3% of measured value). However, 300 ppm or less: 100 ppm
Performance
Accuracy described here is the factory default.
Warm-up period
30 minutes
Response characteristics Within 120 seconds
3

Atmospheric pressure
correction

The atmospheric pressure can becorrected by setting the altitudeof the installation site with theRotary Switch.

0 to 9900 m above sea level, however, for 2500 m or moreof altitude setting, 2550 m is the maximum correction value.
Setting unit
100 m
Output signal
Outputs linearly corresponding to CO2 concentration ofeach range. However, if the measured value is lower than360 ppm, the value corresponding to 360 ppm will be output.
Resolution
0.05 %FS max.
Allowable load
Output Range
Allowable Load Resistanceresistance
4 to 20 mA, 0 to 20 mA
550max.
1 to 5 V, 0 to 5 V
5 k minimum
0 to 1 V
1 k minimum
One cycle is equivalent to 45 days, and if the measured value drops below 400 ppm
in the current cycle, the lowest value in the current cycle will become 400 ppm in thenext cycle. and the difference between the lowest value and 400 ppm will be added toall other measured values in the next cycle.
If the power supply is turned OFF, the number of days in the cycle will be reset.
W90 x H90 x D32 mm (excluding lead wire)

Output spec

Setting range

SensorCorrection

External Dimensions

Mounting Plate

Power Consumption

Approx. 3 W
Temperature: 0 to 50
Humidity: 0 to 95 %RH (Non-condensing)
Storage Environment Temperature: -30 to 70
Humidity: 0 to 95 %RH (Non-condensing)
WeightApprox. 100 g
Insulation Resistance Between Case - Output: 500 M minimum, at 500 V DC
Dielectric StrengthBetween Case - Output: 1.5 kV for 1 minute, 3 mA max.
Moisture-Proof Coating Printed-circuit board inside the main unit (excluding sensor)
Accessories
Mounting Plate, Mounting Plate screw: M4 x 8 (2 pieces), Spring washer: 2 pieces,Sensor main unit mounting screw: M3 x 4 (4 pieces), Instruction manual: 1 copy
Operating Environment

Inquiries: For any inquiries about this instrument, please contact our agency or the vendor where you purchased
the unit after checking the model and serial number. Please let us know the details of the malfunction, ordiscrepancy, and the operating conditions.

SHINKO TECHNOS CO., LTD.
OVERSEAS DIVISION

Head Office: 2-5-1, Senbahigashi, Minoo, Osaka, 562-0035, Japan[URL]
https://shinko-technos.co.jp/e/Tel: +81-72-727-6100[E-mail]overseas@shinko-technos.co.jp
Fax: +81-72-727-7006

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