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Duct Carbon Dioxide (CO2) Transmitter
General Description
The MCD200 utilizes the method of NDIR (Non-Dispersion Infra-Red) and measures the carbon dioxide concentration up to 0 – 10000 ppm in the ventilation systems, indoor office, meeting room, living space etc.
Its measurement range of 0- 10000 ppm covers range required to monitor compliance with ASHRAE or other ventilation efficiency standards. Packaged in a compact, distinctively styled enclosure that can be used for living space, meeting room, livestock farm, horticulturam farm, fruit grower, mushroom farm and greenhouse.
The model MCD200 provides several output alternatively. 4-20 mA, 0-5 V, 0-10 V, ModBus 485 protocol are standard. Optionally it has removable and insertable FND 4 digit LED display into the socket module on the electronic board. NDIR sensor is most stable and does not require any recalibration and it use semipermanently for carbon dioxide measurement .
Feature and Application
- High Accuracy NDIR Sensor
- Output 4-20 mA, 0-5 VDC, 0-10 VDC
- Robust Steel (AL) probe for easy Installation
- Modbus 485 RTU Protocol
- Relay Contact Output 2 x SPDT 3 Amp 30 VDC
- High Intensity Local Indicator 4-Digits FND
- Configurable in Field System
- Dual Alarm H, HH, Relay Output, Status Indication LED
- Programmable Parameter by 4-Key Pad Built-in
- Dual Vertical Mounting (Up-Dwnn, Down-Up Orientation)
- Long-term Sensor life (Semipermanent)
Technical Specification
| Measuring Method | Non-Dispersion Infra-Red / Dual Sensor |
|---|---|
| Accuracy | < ±(50 ppm +2 %MV) @25°C |
| Power Supply | 12~24 VDC, 24 VAC |
| Output | 4~20 mA, 0~5 VDC, 0~10 VDC, Modbus 485 RTU, 2 x Alarm SPDT Relay |
| Repeatability | ±20 ppm |
| Measuring Range | 0~10000 ppm (Programmable Measuring Range by 4-Keypad) |
| Dual Alarm Setting | Alarm 1 / Alarm 2 (Programmable Alarm Setting by 4-Keypad) |
| Response Time | Less 2 second |
| Local Display | FND 4 Digit (Red, Bule, Yellow selectable) |
| Status Indication | Normal (Less than Alarm) Green LED on Abnormal (Over than Aalrm) Red LED on |
Dimensions
Mostek reserves the right to make changes without further notice to any products to improve reliability , function, or design
QUICK PROGRAM MENU
- I . For simulation mode press SW1, SW2, SW3, SW4 in board assembly and then display in increased correspomding to output. ( SW1 0 ppm Fixed, SW2 100 ppm Unit Increased, SW3 1000 Unit Increased , SW4 10000 ppm Fixed)
- II . Press SW1 and SW4 of upper board simultaneously for 3 seconds.
- III. Once program has started the following menu appears, and enter the parameter adjustment as shown below procedures
Ordering Code
| Product Code | MCD200 | Duct Carbon Dioxide(CO2) Transmitter | |
|---|---|---|---|
| Code 1 | Power Supply | P024 P099 |
24 VDC- 24 VAC Option, On request |
| Code 2 | Probe Length | L025 LXXX |
25 Cm Probe Length On Request (ex. L075=75Cm) |
| Code 3 | Display | DN DR DB DY |
None FND 4 Digit Red FND 4 Digit Blue FND 4 Digit Yellow |
| Code 4 | Measuring Range | R1000 R2000 R3000 R4000 R5000 R0000 |
0~1000 ppm Factory Set (Adjustable by Program) 0~2000 ppm Factory Set (Adjustable by Program) 0~3000 ppm Factory Set (Adjustable by Program) 0~4000 ppm Factory Set (Adjustable by Program) 0~5000 ppm Factory Set (Adjustable by Program) On Request, ( xxxx ) ppm , Max 10000 ppm |
| Code 5 | Alarm 1 Setting | A1N A1Y |
None Alarm 1 – Same as Span Alarm 1 set , ( xxxx ) ppm on Request |
| Code 6 | Alarm 2 Setting | A2N A2Y |
None Alarm 2 – Same as Span Alarm 2 set , ( xxxx ) ppm on Request |
| Code 7 | Output & Communication | G4210M G4205M |
4~20 mA ,0~10V, Modbus 485 RTU 4~20 mA ,0~5V, Modbus 485 RTU |
| Code 8 | Customer’s Special Specification | SCRN SCRY |
None Consult Factory |
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