WJ25 General parameters:
(typical @ +25 ℃, Vs to 24VDC)
Input type: PT100 input / PT1000 input
Accuracy: 0.05%
Temperature drift:± 30 ppm / ℃ (± 50 ppm / ℃, maximum)
Input temperature range: (1) PT100,-200~400℃ (2) PT100,-200~600℃
(3) PT1000,-200~400℃ (4) PT1000,-200~600℃
AD Conversion rate: 5 Sps
Common Mode Rejection (CMR): 120 dB (1kΩ Source Imbalance @ 50/60 Hz)
Normal Mode Rejection (NMR): 60 dB (1kΩ Source Imbalance @ 50/60 Hz)
Input Protection: over-voltage protection, over-current protection
Communication: RS-485 protocol or RS-232 standard characters protocols and MODBUS RTU communication protocol
Baud Rate (2400,4800,9600,19200,38400,57600,115200 bps) can be selected via software
Address (0 to 255) can be selected via software
Communication Response Time: 100 ms maximum
Power Supply: +8 ~ 32VDC wide range power supply, internal anti-reverse and over-voltage protection circuit
Power Loss: less than 1W
Operating Temperature: - 45 ~ +80 ℃
Humidity: 10 ~ 90% (no condensation)
Storage Temperature: - 45 ~ +80 ℃
Storage Humidity: 10 ~ 95% (no condensation)
Isolation Voltage: input / output: 3KVDC, 1 minute, leakage current:1mA
Which output signal and power supply are common ground.
Shock Voltage: 3KVAC, 1.2/50us (peak)
Dimensions: 120 mm x 70 mm x 43mm
Input Ranges& Data Formats
WJ25 uses three data formats: 00:Engineering Units
01:% of FSR
10:Twos complement hexadecimal
Input Range | Data Format | +F.S | ZERO | -F.S | Displayed Resolution |
PT100,-200~400℃ | Engineering Units | +400.00 | ±00.00 | -200.00 | 0.01℃ |
% of FSR | +100.00 | ±000.00 | -050.00 | 0.01% | |
Twos complement hexadecimal | 7FFFFF | 000000 | C00000 | 1LSB | |
PT100,-200~600℃ | Engineering Units | +600.00 | ±000.00 | -200.00 | 0.01℃ |
% of FSR | +100.00 | ±000.00 | -033.33 | 0.01% | |
Twos complement hexadecimal | 7FFFFF | 000000 | D55555 | 1LSB | |
PT1000,-200~400℃ | Engineering Units | +400.00 | ±0.0000 | -200.00 | 0.01℃ |
% of FSR | +100.00 | ±000.00 | -050.00 | 0.01% | |
Twos complement hexadecimal | 7FFFFF | 000000 | C00000 | 1LSB | |
PT1000,-200~600℃ | Engineering Units | +600.00 | ±000.00 | -200.00 | 0.01℃ |
% of FSR | +100.00 | ±000.00 | -033.33 | 0.01% | |
Twos complement hexadecimal | 7FFFFF | 000000 | D55555 | 1LSB |
More details,please check :http://www.wayjun.net/index.php?main_page=product_info&cPath=3&products_id=91&zenid=luuavug8r3dltad712nl2hac21