EMS Kontrol KT-501/541/561 User Manual
Temperature, Humidity, Carbon Dioxide Transmitter
What is it?
The temperature, humidity, and carbon dioxide transmitter measures temperature, relative humidity, and carbon dioxide values precisely and outputs them via analog signals.
How does it work?
It operates with a supply voltage between 12 V DC and 24 V DC. Measurement values are taken from the analog output terminals and transferred to the desired location.
General Features
- Accurate and precise measuring
- Analog output
- Durable and handy design
- Long operating life
- Cleanable filter
- Easy assembling
- IP 67 plastic case (excluding sensor)
Areas of Use
- HVAC Applications
- Poultry Automation and Poultry Farms
- Cold Storage
- Incubation Rooms
- Food Storage
- Air Conditioning Cabinets
- Clean Rooms and Laboratories
Rules to be Considered for Safety
- Always read the user manual before using the device and its apparatus.
- Damages caused by opening, breaking, or misuse of the plastic parts of the device and its apparatus are considered out of warranty.
- Keep the device and its apparatus away from external influences such as liquid, high dust, high temperature, etc., and protect them.
- Do not expose the device cables to any jamming or pressure.
- Disconnect the electrical power when your device is not used for a long time.
- Our devices and apparatus should be used by paying attention to the points in the user manual. In case of damages and malfunctions arising from external use (liquid contact, falling to the ground, etc.), ask for help from the service.
- Failures due to electrical connection errors and electrical voltage or current errors are not covered by the warranty.
Technical Data
| Parameter | Value |
|---|---|
| Product Name | Temperature, Humidity and Carbon Dioxide Transmitter |
| Supply Voltage | 12-24 V DC |
| Output | 0-10 V / 4-20 mA / Modbus |
| Measurement Range (Temp.) | 0 - 50°C / (-20) - (+80)°C |
| Precision (Temp.) | ± 0.1 °C |
| Accuracy (Temp.) | ± 0.3 °C |
| Measurement Range (Hum.) | 0-100% |
| Precision (Hum.) | ± 1% |
| Accuracy (Hum.) | ± 3% |
| Measurement Range (CO₂) | 0-5,000 ppm / 0-10,000 ppm |
| Precision (CO₂) | ± 10 ppm |
| Accuracy (CO₂) | ± 50 ppm + %2 |
| Operating Temperature | (-10°C) - (+55°C) |
| Storage Temperature | (-20°C) - (+60°C) |
| Protection Class | IP 67 (Excluding Sensor) |
Note: If the device is to be used outside the operating temperature range, the manufacturer must be informed and approval obtained.
Product Codes and Output Signals
| Product Code | Output Signal |
|---|---|
| KT-501 | 0-10 V |
| KT-541 | 4-20 mA |
| KT-561 | Modbus RTU |
Dimensions
The transmitter housing has the following approximate dimensions:
- Dimension A: 164 mm
- Dimension B: 115 mm
- Dimension C: 40 mm
- Dimension a: 65 mm
- Dimension b: 78 mm
- Dimension c: 20 mm
- Dimension d: 16 mm
Installation
- Unpack the product and open the top cover.
- Make cable connections accordingly.
- If the product will be mounted on the wall, use the provided screws and dowels.
- Measurement begins 30 seconds after the product is energized. It is recommended to keep the product in the environment for at least 5 minutes for stable measurement values.
- Use shielded cable for communication to prevent interference from external influences.
- Check measurement values again after cable installation, as the communication cable can introduce resistance.
Wiring Diagrams
Analog Output (0-10 V / 4-20 mA)
Connections:
- GND: Ground
- 24 VDC: Power Supply Input (12-24 V DC)
- OUTPUT 1: Analog Output (0-10 V or 4-20 mA)
- TEMP. - HUM. - CO₂: Signal Output for Temperature, Humidity, and CO₂
Modbus RTU Wiring Diagram
Connections:
- GND: Ground
- 24 VDC: Power Supply Input (12-24 V DC)
- A: RS485 Data (+)
- B: RS485 Data (-)
Modbus RTU Communication Structure
Default settings for Modbus RTU communication are: Baud rate 9600, Stop bit: 1, Parity: NONE. Default Slave ID is 88.
Data is stored in holding registers:
- Temperature: Address 2 (40003)
- Humidity: Address 3 (40004)
- Carbon Dioxide: Address 4 (40005)
Modbus RTU Register Map
| Register Address | Parameter | Read/Write | Default Value | Min. Value | Max. Value |
|---|---|---|---|---|---|
| 0 (40001) | Slave ID | R/W | 88 | 1 | 247 |
| 1 (40002) | Baud Rate | R/W | 3 | 0 | 8 |
| 2 (40003) | Temperature Value | R | - | - | - |
| 3 (40004) | Humidity Value | R | - | - | - |
| 4 (40005) | CO₂ Value | R | - | - | - |
Slave ID and Baud Rate can be changed via Modbus communication by writing to registers 0 (40001) and 1 (40002) respectively. The table below shows the Baud Rate values:
| Value | Baud Rate |
|---|---|
| 0 | 1200 |
| 1 | 2400 |
| 2 | 4800 |
| 3 | 9600 |
| 4 | 14400 |
| 5 | 19200 |
| 6 | 38400 |
| 7 | 57600 |
| 8 | 115200 |
To reset Slave ID and Baud Rate to default values, press and hold the "Calibration" button. Wait until the Status (green) LED turns off (approx. 30 seconds), then release the button.
LED Meanings
| Indicator | State | Meaning |
|---|---|---|
| Power (Red) | On | No Energy (Error) |
| Off | Normal Operating | |
| Status (Green) | On | Measurement Preparation |
| Off | Normal Measurement |
Before Calibration
- The product is sold calibrated. Do not calibrate unless necessary.
- Perform calibration only if the product is confirmed to be measuring incorrectly.
- Only Carbon Dioxide (CO₂) can be calibrated.
- Compare the device's measurement with another calibrated device or in a clean, open-air environment.
- Calibration is recommended if the device measures values outside the 350 ppm - 450 ppm range in clean, open air.
Calibration
- Select a clean, open area free from CO₂ sources for calibration.
- The CO₂ level in clean, open air typically ranges between 350 ppm and 450 ppm. During calibration, the device will set this value to 400 ppm.
- When the "Calibration" button is pressed, the Status (green) LED will blink. Release the button when the LED is fully lit (approximately 10 seconds) to start the calibration process. The Status LED will then blink rapidly, indicating the process is underway. Calibration is complete when the blinking stops.
Warranty Terms
- The warranty period for devices and apparatus starts from the invoice date and covers manufacturing defects for 2 years.
- Devices are delivered in working condition. On-site commissioning incurs a service fee.
- Warranty repairs are performed at the company. Transportation costs for warranty service are covered by the customer.
- Maintenance is performed at the company; transportation costs for maintenance are the customer's responsibility.
- Malfunctions during the warranty period will be tested by the company to determine the cause (customer or manufacturer fault).
- If a manufacturer fault is detected, the customer may request replacement or repair at the manufacturer's expense, provided it does not exceed the product price.
- If a customer-induced fault is detected, all costs are borne by the customer.
- Customers cannot claim benefits under Article 6 if they were aware of defects at the start of the warranty period or should have been aware.
- Failures due to misuse contrary to the user manual are not covered.
- Physical damage (beating, breaking, scratching) is not covered.
- Use with unapproved third-party devices/models voids the warranty.
- Rusting, oxidation, and liquid contact due to working in dusty/acidic/humid environments are not covered.
- Transportation damages are not covered unless transportation insurance is purchased.
- Damages from mains voltage or faulty electrical installation are not covered.
- Force majeure events (fire, flood, earthquake, etc.) are not covered.
- All parts of the devices and apparatus are covered by the warranty.
- Repair time will be added to the warranty period. Repair time will not exceed 20 working days. Notification of malfunction can be made via phone, fax, email, or registered mail. If a malfunction is not resolved within 20 business days, the manufacturer must provide a replacement with similar characteristics until repair is completed.
- Customers may request a refund or price reduction if the product fails repeatedly (4 times/year or 6 times/warranty period) or if repair time exceeds limits, or if the malfunction is irreparable, as confirmed by a service report.
- Customers can file complaints with consumer courts or arbitration committees.
- The warranty certificate must be kept. Loss of the document will result in fees for repair/replacement.
Declaration of Conformity
Manufacturer: EMS KONTROL ELEKTRONİK VE MAKİNE SAN. TİC. A.Ş.
Address: Halkapınar Mah. 1376 Sok. Boran Plaza No:1/L Konak / İZMİR - TÜRKİYE
EMS KONTROL ELEKTRONİK VE MAKİNE SAN. TİC. A.Ş. declares that the product marked with CE, named and specified below, complies with the specified directives and provisions.
Brand: EMS KONTROL
Product Name: KT-5X1
Product Type: Temperature and Humidity, Carbon Dioxide Transmitter
Compatible Directives:
- Electromagnetic Compatibility Directive 2014/30/EU (EMC EN 61000-6-3: 2007 + A1: 2011, EN 61000-6-1: 2007)
- Low Voltage Directive 2014/35/EU (LVD EN 60730-2-9:2010, EN 60730-1:2011)
Additional Information: This product can be used with other devices. Compliance with directives covers only the product itself. EMS KONTROL is not responsible for the compliance of the entire system with the directives. This declaration is invalid if the product is modified without approval.
[CE RED logo]
Environmental Information
This device is classified as Waste Electrical and Electronic Equipment (WEEE) according to European directives 2002/96/EC. Before disposal, prevent potential negative environmental and health consequences. The symbol [WEEE symbol] indicates that the product should not be treated as household waste and must be delivered to designated electrical and electronic waste collection points. Disposal must comply with local environmental regulations.
