What is it?
Precisely measures the differential pressure value between two points and outputs it as analog.
How does it work?
It can operate with a supply 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
- 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 and 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
| Product Name | Differential Pressure Transmitter |
|---|---|
| Supply Voltage | 12-24 V DC |
| Output | 0-10 V / 4-20 mA / Modbus |
| Measurement Range | 0-1,000 Pa / 0-5,000 Pa / 0-10,000 Pa |
| Precision | ± 10 Pa |
| Accuracy | ± 0.5 % |
| Operating Temperature | (-10°C) - (+55°C) |
| Storage Temperature | (-20°C) - (+60°C) |
| Protection Class | IP 67 (Excluding Sensor) |
Sizes
| a | b | c | ||
|---|---|---|---|---|
| A | 165 mm | 115 mm | 28 mm | 28 mm |
| B | 65 mm | |||
| C | 40 mm |
Installation
- Unpack the product and open the top cover.
- Make cable connections accordingly.
- If the product will be mounted on the wall, you can use the screws and dowels in the package.
- It starts measuring 30 seconds after the product is energized. It is recommended that the product remains in the environment for at least 5 minutes to get healthy measurement values.
- It is recommended to use shielded cable as communication cable as it will prevent communication signals from being affected by external influences.
- Since the communication cable will create resistance, check the measurement values again after cable installation.
Wiring Diagrams
0-10 V / 4-20 mA Wiring Diagram: Connect the pressure sensor to the designated terminals. Power supply (12-24 V DC) and Ground (GND) are required.
Modbus RTU Wiring Diagram: Connect the Modbus RTU communication lines (A, B) to the designated terminals. Power supply (12-24 V DC) and Ground (GND) are required.
Modbus RTU Communication Structure
RS485 Baud rate is 9600 by default. Stop bit: 1, Parity: NONE. Default Slave ID is 86.
Differential pressure value is kept in the holding register at address 2 (40003). Differential pressure information can be obtained by reading these registers.
Register Map and Default Values
| Register Address | Default Value | Read/Write | Min. Value | Max. Value |
|---|---|---|---|---|
| Slave ID (40001) | 86 | R/W | 1 | 247 |
| Baud rate (40002) | 3 (9600) | R/W | 0 (1200) | 8 (115200) |
| Pressure Val. (40003) | - | R | - | - |
Slave ID and Baud rate can be changed via Modbus communication by writing to registers 0 (40001) and 1 (40002) respectively. Refer to the table for Baud rate values.
Resetting Modbus Settings: Press and hold the "Calibration" button for approximately 30 seconds until the Status (green) LED turns off to reset Slave ID and Baud rate to their default values.
Before Calibration
- The product is sold as calibrated. Do not calibrate unless necessary.
- Perform calibration only when it is certain that the product is measuring incorrectly.
- Calibration can only be performed on products with 0-10 V and 4-20 mA outputs.
- To check if the measurement value is incorrect, disconnect the hoses at the + and - probe ends. Ensure there is no air flow during the process. If the device measurement value is not 0 Pa, calibration can be performed.
Calibration
- To perform differential pressure calibration, press and hold the "Calibration" button for 5 seconds. "CAL" will appear on the screen.
- Once "0" is displayed, the calibration is completed.
- For verification, test again in an environment without air flow.
LED Meanings
| Indicator | Status | Meaning |
|---|---|---|
| Power (Red) | On | Normal Operating |
| Off | No Energy (Error) | |
| Status (Green) | On | Normal Measurement |
| Off | Error - Fault |
Declaration of Conformity
Manufacturer: EMS KONTROL ELEKTRONİK VE MAKİNE SAN. TİC. A.Ş.
Product Name: BT-4X5
Product Type: Differential Pressure Transmitter
This product is marked with CE and covers the specified directives and provisions.
Compatible Directives:
- Elektromagnetic 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 in combination with other devices, and compliance with the directives covers only the product. EMS KONTROL is not responsible for the compliance of the entire system with the directives. This declaration is not valid if the product is modified without approval.
Warranty Terms
- The warranty period of the devices and apparatus starts from the invoice date and is guaranteed for 2 years against manufacturing defects.
- Devices and apparatus are delivered to the customer in working condition. On-site commissioning is subject to a service fee.
- Repair of devices and apparatus under warranty is carried out by sending them via the company's contracted transportation. On-site service transportation and accommodation expenses belong to the customer.
- Maintenance of devices and apparatus is done at the company. Transportation fees for maintenance belong to the customer.
- Malfunctions during the warranty period are tested by the company to determine if they are customer or manufacturer faults.
- If manufacturer-induced faults are detected, the customer may request replacement or repair coverage, not exceeding the product price.
- If faults are determined to be customer-caused, all costs belong to the customer.
- Customers must be aware of defects from the start of the warranty period to benefit from replacement/repair coverage.
- Failures arising from use contrary to the manual are not covered by the warranty.
- Physical damage (beaten, broken, scratched) is not covered by the warranty.
- Use of devices with other brands/models without manufacturer approval voids the warranty.
- Errors caused by rusting, oxidation, or liquid contact in dusty/acidic/humid environments are not covered.
- Damages during transportation are not covered; transportation insurance is optional.
- Damages from mains voltage or faulty electrical installation are not covered.
- Malfunctions due to force majeure (fire, flood, earthquake, etc.) are not covered.
- All parts of the devices and apparatus are covered by the warranty.
- Repair time spent during the warranty period will be added to the warranty period. Repair period shall not exceed 20 working days.
- If a malfunction is not resolved within 20 business days, the customer may request a refund or price reduction if the product fails repeatedly or repair is impossible.
- Customers may 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.
WEEE Information
This device is a Waste Electrical and Electronic Device (WEEE). Dispose of it according to local environmental regulations. Do not treat as household waste. This symbol ? indicates it should be delivered to electrical and electronic waste collection points.
Manufacturer Information
Manufacturer Title: EMS KONTROL ELEKTRONİK VE MAKİNE SAN. VE TİC. A.Ş.
Address: Halkapınar Mah. 1376 Sokak Boran Plaza No:1/L Konak / İzmir-TÜRKİYE
Telephone: 0 (232) 431 2121
E-Mail: info@emskontrol.com
EMS Kontrol reserves the right to make changes and improvements to the product specifications and user manual. For updates, please visit emskontrol.com.
