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Working voltage: Power Supply DC 7-25V;
Working current: 10-18MA
Number of acquisition channels: 8 channels
MODBUS RTU protocol, 03, 04 read commands, 06, 16 write commands.
Serial port baud rate: 9600 (default), 1200-115200,N, 8, 1
By modifying the RS485 address, up to 247 modules can be cascaded (more than 16 please use R485 repeater)
Adapted sensor: DS18B20 Temperature Sensor
Temperature measurement range: -55°C to +125°C(-67°F to +257°F)
Size: 75 *50 * 14mm(Only Board),80 *54 * 26mm(With DIN housing)
Weight: 36g(Only Board) ,66g(With DIN housing)
In order to collect temperature more stably, it is recommended that the cable length of the DS18B20 probe should not exceed 15 meters.
1 For probes less than or equal to 5 meters, the default settings can be used
2 When the probe cable is greater than 5 meters, data can be collected correctly under normal circumstances. However, some manufacturers' sensors are incompatible and cannot collect data correctly.
The following modifications can be made:
1 Set the 0X00F3 register to 1.
2 Change the RA1/RA2 resistor to 3.9K or 2.7K resistor.
Pin description:
VCC: Positive power supply
VCC: Negative power supply
A+: RS485 A+ port
B- : RS485 B- port
5V: DS18B20 positive power supply
GND: DS18B20 negative power supply
D1: CH1 DS18B20 DATA
D2: CH1 DS18B20 DATA
D3: CH1 DS18B20 DATA
D4: CH1 DS18B20 DATA
D5: CH1 DS18B20 DATA
D6: CH1 DS18B20 DATA
D7: CH1 DS18B20 DATA
D8: CH1 DS18B20 DATA
* Delivery Time.
We need 1-2 days to process your order before shipping.There are two shipping methoed. Fast Delivery: The delivery time for US, European countries the delivery will take 3-5 days.Slow Delivery: The delivery time for US, European countries the delivery will take 10-15 days.
* Tracking information.
After we ship package, customer receive automatic email with tracking details.
* Lost Package Policy.
If a package did not arrive in 4 weeks after the shipping date, then this package is treated as Lost. In this case a new package will be shipped to the customer provided we are able to give the same items as those purchased by the customer. If we are not able to provide the same items to substitute the lost ones we will either propose to the customer similar items or refund their cost as it will be mutually agree with the customer. If one or more items neither the same nor similar are available to be shipped, the customer can request to cancel the order entirely, thus the total cost of the order including shipping and handling cost will be fully refunded.
