Temperature and humidity controller

Temperature and humidity controller

Model DDFB130

I. Overview

This product integrates temperature and humidity collection, display, monitoring, alarm, and control. Built in imported temperature and humidity sensor chip, with high detection accuracy and stable performance. This product has three relay outputs, which can be controlled by the device to regulate the temperature and humidity inside the greenhouse, including the rolling shutter, ventilation fan, and heater. This product has bothRS485Communication interface, capable of remote network monitoring, real-time monitoring and recording of temperature and humidity changes in multiple greenhouses through remote computers. It can also be equipped with sound and light alarms, which automatically sound when the temperature and humidity inside the greenhouse exceed the set values.

DDFB130The probe is made of powder metallurgy and has dustproof and waterproof properties, strong protective ability, and is suitable for occasions with large dust and harsh environments.

2、 Technical indicators

1. Power supply:+12VDC～+24VDC
2. Measuring range: temperature(－40～＋120)℃ Humidity:0～100% RH
3. measureMeasurement accuracy: Temperature: ±0.5℃（25℃）Humidity: ±5.0% RH（20%-80%RHWithin the scope,25℃）
4. measureResolution: Temperature: ±0.1℃Humidity: ±0.1% RH
5. Display:LEDdigital tube Size:40×25mm 2Road three digit display (temperature, humidity)
6. Alarm: Automatic operation indication, temperature, humidity, ventilation can all be alarmed
7. Control: Temperature (lower limit), humidity (lower limit), ventilation (both upper and lower limits of temperature and humidity can be correlated), three-way relay output（succeedElectrical performance: Load capacity ≥220V/3A）Manual switch relay can be set.
8. RS485interface（ModusProtocol, baud rate1200 2400 4800 9600Can be set, address can be set1-63）.
9. Split design, probe lead length1m
10. Overall dimensions:120×95×50mm

3、 Dimensional drawing

Figure 1 External dimensions Figure 2 DB130 probe size diagram

4、 Button Description

Keyboard Settings

SET:Function key, confirmation key

▲: Up key

▼: Down button

5、 Operating instructions

6、 Wiring diagram

Figure 3 Power supply and RS485 wiring diagram 4 Relay wiring diagram

7、 Communication instructions

The instrument adoptsModbusCommunication protocol, the default value of the local address is03通道。

The protocol format is as follows:

address command Register Address High Bit Low bit register address High bit data length Low data lengthcrclow positioncrchigh position

Address:1～63；

Command:

03Simultaneously reading temperature, humidity, and dew point values;

06: Set the lower computer register value

01: Display register values

04Relay control (in upper computer control mode), followed by01、02、04、08It is to turn off the corresponding relay,10、20、40、80It is to turn on the corresponding relay;

Register address definition:

03The address corresponding to the command（16bit）：

address0000 : Humidity

address0001 : Temperature

address0002 Dew point

• Temperature, humidity, and dew point correspond respectively3a16A register with bits, but must be read simultaneously when reading

For example, reading the address as1The temperature and humidity command for the lower computer:

01 03 00 00 00 03 CB 05

06The address corresponding to the command（8bit）

address16: Local address

address17Humidity upper limit alarm value

address18Humidity lower limit alarm value

address19Temperature upper limit alarm value

address20: Temperature lower limit alarm value

address21Humidity alarm return setting

address22Temperature alarm hysteresis setting

address23: Control mode（0Upper computer control,1Local control)

Specific settings can be made using our software or by adding programming; Our software is as follows

8、 Precautions

1The power supply voltage is 12-24VDC

2Do not forcefully pull or tug on the probe lead.

3If measuring under humidity conditions above 90% RH, pay attention to environmental ventilation to prevent condensation on the probe part, which may affect the measurement.

4Without the manufacturer's permission, it is strictly prohibited to open the controller casing to prevent damage to the controller circuit.