Product Name:
16Ch RS485 Temperature Collector Modbus RTU Paperless Recorder 100K B3950 NTC Sensor

 

 

Packing list(Please select the product you need):

1 pcs 16CH NT28B16 RS485 NTC Temperature sensor Board
OR 8 PCS NTC NTC Temperature sensor

 

Description :

 

Features:

1: Operating Voltage : DC 7-25V(DC 9V 12V 15V 24V)
2: Operating Current :10-25MA(depending on the number of external NTCs)
3: MODBUS RTU Command support 03 06 function code
4:Serial port baud rate: 9600 (default), N, 8, 1
5:By modifying the RS485 address, up to 247 modules can be cascaded (more than 16 please use R485 repeater)
6:Adapted sensor:10K/20K/50K/100K B3950 1% NTC thermistor, Up to 16 NTC sensors can be connected at the same time
7:Temperature measurement range (using our NTC sensor): -20 ° C to +125 ° C.
8:Temperature measurement accuracy (using our NTC sensor): 1%.
9 :Size: 90 *72 * 14mm
10 :Weight: 37 g


NT28B16 can be used to measure temperature with NTC, and it can also be used to measure common resistance value. Different versions have different measurement ranges.
10K version: 1K ohm-100K ohm;



Modbus RTU Command Please refer to : '' NT28B16 modbus rtu protocol''


NTC sensor specifications:
Product Name: 5*25mmNTC Waterproof Probe
Total length : 50CM
Resistance value: 10K/20K/50K/100K(optional)
Resistance accuracy: ±1%
Resistance B value: 3950 ± 1%
Temperature range: -20 ° C -125 ° C
Wire size: 2651 26# parallel line temperature 105 °C
Plug model: XH2.54-2P



Note:
1 This module does not have an NTC sensor. The NTC sensor needs to be purchased separately (10K/20K/50K/100K B3950 1%);The module's measured resistance value is 1%, and the theoretical temperature range is -273s~200°C. The final temperature measurement accuracy and temperature range are determined by NTC thermistor.
2 There are four different versions, be sure to use the corresponding sensor (10K/20K/50K/100K B3950 1%), otherwise the temperature will not be accurate

 

RS485 bus wiring diagram: