WJXJ-8023 temperature inspection instrument
I. Overview
Universal input of WJXJ-8023 temperature inspection instrument (configurable input: standard voltage, standard current, thermocouple, thermal resistance, frequency, millivolt, etc.). Can bring 18 alarm outputs, 12 transmission outputs, RS232/485 communication interface, Ethernet interface, micro printer interface and USB interface, SD card socket; can provide sensor power distribution; has powerful display function, real-time curve display, History curve recall, bar graph display, alarm list display. Humanized appearance design, perfect function embodiment, reliable hardware quality and exquisite manufacturing process make WJXJ-8023 have a higher cost performance.
2. Main technical parameters
1. Measurement input
input signal
Current: 0~20mA, 0~10mA, 4~20mA, 0~10mA square root, 4~20mA square root
Voltage: 0~5V, 1~5V, 0~10V, ±5V, 0~5V square root, 1~5V square root, 0~20 mV, 0~100mV, ±20mV, ±100mV
Thermal resistance: Pt100, Cu50, Cu53, Cu100, BA1, BA2
Linear resistance: 0~400Ω
Thermocouple: B, S, K, E, T, J, R, N, F2, Wre3-25, Wre5-26
2. Output
Analog output: 4~20mA (load resistance≤380Ω), 0~20mA (load resistance≤380Ω), 0~10mA (load resistance≤760Ω), 1~5V (load resistance≥250KΩ), 0~5V (load resistance≥250KΩ) 250KΩ), 0~10V (load resistance ≥500KΩ)
Alarm output: relay normally open contact output, contact capacity 1A/250VAC (resistive load)
(! Note: When the load exceeds the relay contact capacity, please do not directly load)
Feeding output: DC24V±1, load current ≤250mA
Communication output: RS485/RS232 communication interface, baud rate 1200~57600bps can be set, using standard MODBUS RTU communication protocol, RS-485 communication distance up to 1 km; RS-232 communication distance up to: 15 meters; EtherNet communication interface, The communication rate is 10M, (only for LAN)
3. Comprehensive parameters
Measurement accuracy: 0.2%FS±1d
Sampling period: 1 second
Setting method: panel touch key setting; parameter setting value password lock; setting value permanently saved when power off.
Display mode: 7-inch 800*480 dot matrix widescreen TFT high-brightness color graphic liquid crystal display, LED backlight, clear picture, wide viewing angle. Screen brightness can be adjusted freely
The display content can be composed of Chinese characters, numbers, process curves, bar graphs, etc. Through the panel keys, the screen can be turned over, the historical data can be searched before and after, and the curve time scale can be changed.
Data backup: support U disk and SD card for data backup and transfer, the maximum capacity is 8GB, support FAT, FAT32 format
Storage capacity: Internal Flash memory capacity 64M Byte
Recording interval: 1, 2, 4, 6, 15, 30, 60, 120, 240 seconds, nine gears to choose from.
Storage length: 24 days (when the interval is 1 second) - 5825 days (when the interval is 240 seconds)
Calculation formula: record time (days) =
(Note: Calculation of the number of channels: The program divides the number of channels into five gears: 4, 8, 16, 32, and 64. When the number of instrument channels falls between the two gears, the larger number is used as the calculated channel number. For example: instrument The number of channels is 12, and the number of channels in the formula is calculated as 16)
Use environment: Ambient temperature: -10～50℃; Relative humidity: 10～90%RH (no condensation); Avoid strong corrosive gas. (! Note: If the on-site environment is bad, special instructions must be made when ordering)
Working power supply: AC85～264V (switching power supply), frequency range: 50～60HZ, maximum power consumption: 20VA
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