Shinko DSW-200-CO2 Indoor CO2 Sensor Instruction Manual

: June 4, 2024
: Shinko

Shinko DSW-200-CO2 Indoor CO2 Sensor Instruction Manual

Preface

Thank 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 and correct use, thoroughly read and understand this manual before using this sensor. To prevent accidents arising from 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 used according 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 or malfunction 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 by Caution 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 carried out properly.

Caution

Procedures which may lead to dangerous conditions and cause superficial to medium injury or physical damage 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 the inner assembly.
To prevent an electrical shock, fire or damage to the instrument, parts replacement may only be undertaken by Shinko or other qualified service personnel.

SAFETY PRECAUTIONS

To ensure safe and correct use, thoroughly read and understand this manual before using this instrument.
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 to the 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 of weapons of mass destruction (i.e. military applications, military equipment, etc.), please investigate the
end users and the final use of this instrument. In the case of resale, ensure that this instrument is not illegally exported.

1. Model

1.1 Model

Model| DSW-200| –| –| –| |
---|---|---|---|---|---|---
Measuring object| CO2| | | | CO2 concentration

Measurement range

Output spec

1.2 How to Read the Model Label

Model label is attached to the inside of the case.

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

2. Mounting

Caution

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 5 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.
For products without the Sensor Correction Function, a maximum of ±300 ppm/year of sensitivity decrease may occur in continuous power-on status.
Therefore, a periodic calibration and/or replacement of the sensor are/is recommended.

Maintenance

Check and clean the main unit cover thoroughly once a year.
Change the sensor when no output occurs.
For products without the Sensor Correction Function, a maximum of ±300 ppm/year of sensitivity decrease may occur in continuous power-on status.
Therefore, a periodic calibration and/or replacement of the sensor are/is recommended.

(1) Fixing the Mounting Plate

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

(2) Wiring

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

(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 Cover Insert the main unit cover protrusion (2 places) into the cover mounting holes (2 places) located on the
upper part of the sensor main unit, then fit the cover to the sensor main unit.

3. Wiring

Lead Wire Color	Lead Wire Type
BRW: Brown	+
BLK: Black	–
RED: Red	+
WHT: White	–

4. Operation Checking

Sensor Status	Output
Initial operation	Output low limit value
Sensor is operating normally.	Output low limit to Output high limit
Sensor is out of order.	Output high limit value +10 %FS

Sensor status and output are described.

5. Specifications

Measurement Range| 360 to 2000 ppm, 360 to 5000 ppm, 0 to 2000 ppm, 0 to 5000 ppm (must be specified)
---|---
Output| 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 CO 2 Sensor] (Fig.1) (Fig.2)

For each range of CO2 con- Measurement range: 360 to 2000 ppm Measurement range: 0 to 2000 ppm

Output: 4 to 20 mA Output: 4 to 20 mA

centrations, linearly outputs corresponding to CO2 con-

centration. However, if the

“360 to 2000 ppm” or “360 to 5000 ppm” range is selected,

and if the measured value

is lower than 360 ppm, the

value corresponding to 360

ppm will be output.

Power Supply Voltage| 24 V DC 10%
Measurement Method| Non-dispersive infrared (NDIR)
Mounting| To the outlet box (inside wall), via outlet box cover: Mounting dimension: 66.7 mm

(JIS C8340: 1999) (JIS: Japan Industrial Standards)

Material| Flame-resistant PC resin, Color: White
Wiring| Lead wire: 300 mm Cross-section area: 0.5 mm2 See “3. Wiring” for details.
Performance| Accuracy| (50 ppm + 3% of measured value). However, 300 ppm or less: 100 ppm Accuracy described here is the factory default.
Warm-up period| 30 minutes
Response characteristics| Within 120 seconds
| Atmospheric pressure| | The atmospheric pressure can be corrected by setting the altitude of the installation site with the Rotary Switch.
---|---|---|---
Setting range| 0 to 9900 m above sea level, however, for 2500 m or more

of altitude setting, 2550 m is the maximum correction value.

Setting unit| 100 m
Output spec| Output signal| Outputs linearly corresponding to CO2 concentration of

each range.

Resolution| 0.05 %FS max.
Allowable load resistance| Output Range| Allowable Load Resistance
4 to 20 mA, 0 to 20 mA| 550 max.
1 to 5 V, 0 to 5 V| 5 k minimum
0 to 1 V| 1 k minimum
Sensor Correction| 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 the next cycle. and the difference between the lowest value and 400 ppm will be added to all other measured values in the next cycle. (Available for the “360 to 2000 ppm” and “360 to 5000 ppm” ranges.)

If the power supply is turned OFF, the number of days in the cycle will be reset.

External Dimensions| W90 x H90 x D32 mm (excluding lead wire)

Mounting Plate

Power Consumption| Approx. 3 W
Operating Environment| Temperature: 0 to 50         Humidity: 0 to 95 %RH (Non-condensing)
Storage Environment| Temperature: -30 to 70      Humidity: 0 to 95 %RH (Non- condensing)
Weight| Approx. 100 g
Insulation Resistance| Between Case – Output: 500 M   minimum, at 500 V DC
Dielectric Strength| Between 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

Environmental Spec| RoHS directive compliant

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, or discrepancy, and the operating conditions