| Instrument features |  | ||||||||
ØUltra-low power design ØInline cellular modem ØAutomatically transfer data to mailbox or FTP ØUp to 15 analog channel inputs ØScalable to up to 300 analog channel inputs Ø12A flexible digital channel ØModbus SCADA connection ØMultiple SDI-12 channels | |||||||||
Software Features | |||||||||
ØBuilt-in software without installation and can be used on Windows, Mac and Linux operating systems ØThe instrument is set up through the web page ØConnect to the instrument via a network cable, USB data cable or wireless ØIntuitive graphical interface ØSimple setting interface for users of all levels ØReal-time and historical data can be viewed | |||||||||
Application areas | |||||||||
| Meteorological stations, agricultural research, environmental monitoring, system development, energy monitoring, aquaculture, flow monitoring, mechanical detection, thermistor matrix, etc. | |||||||||
System Introduction | |||||||||
Display and keys Type: LCD display, 2 lines 16 characters, background light; Display functions: channel data, alarm information, system status; Key: View display information and operation functions through 6 keys; Signal LED lights: 4 signal lights, indicating sampling, hard disk, alarm information and power supply respectively; Software version upgrade Software upgrades through network cable, USB data cable or USB disk; clock Basic resolution: 200µs; Accuracy: ±1 min per year (in an environment with a value of 40 ℃), ±4 min per year (in an environment with a value of -40 ℃ to 0 ℃, 40 ℃ to 70 ℃); powered by External power supply range: 10 to 30Vdc; Peak power: 12W; Average power loss The relationship between sampling frequency and power consumption when using 12Vdc external power supply is as follows:
Basic Features Digital shell: zinc-aluminum alloy; Ruler Inch: 300 x 137 x 65mm; Weight Quantity: 2.5kg; Operating temperature: -30℃ to 70℃; Operating humidity: 85%, water vapor does not condense; Note: Low and high temperature environments will reduce battery life.LCDThe operating temperature of the display is-15℃ to50℃. built-inmodem Report Alarm: Send emails or SMS messages; Data: Send data to a mailbox or FTP server; Remote access: Connect to dEX or command interface; SIM panel: SIM card interface (1.8V/3V); Network: EDGE, GPRS, GSM, WCDMA, HSUPA, HSDPA Frequency Rate: EDGE/GPRS/GSM: 850/900/1800/1900 MHz; WCDMA/HSUPA/HSDPA: 850/1900/2100 MHz | |||||||||
Simulation channel | |||||||||
The DT80M has 5 analog channels, which can be expanded to up to 100 analog channels. Each analog channel can be connected to a three-wire or four-wire input, two independent two-wire inputs, and three two-wire single-ended inputs. The specific number of accesses is as follows: Two-wire single-ended channels: 15 (up to 300 expansion); Two-wire differential channels: 10 (up to 200 expansion); Three-wire or four-wire differential channels: 5 (up to 100 expansion); Note: Extensions require configurationC em20Module, a module contains20analog channels. Basic input range The basic input voltage, current, resistance and frequency range that the DT80M can measure is as follows:
Note: The data collector has the function of automatically changing the range and can be switched within three ranges. The basic input voltage, current, resistance and frequency accuracy that the DT80M can measure is as follows:
Note: Accuracy is relative to full scale. Sampling information For measurement accuracy and suppression of the effects of noise, a row frequency period greater than 50/60Hz is integrated. Maximum sampling speed: 25Hz; Effective resolution: 18 bits; Linearity: 0.01%; Common mode suppression: >90dB; WireSexual chain mode suppression: >35dB. enter Channel isolation: 100V (relay on); Isolation of analog components: 100V (optical isolation); Input impedance: 100KΩ, >100MΩ; Common mode range: ±3.5V, or ±35V in the 30V range. Sensor excitation Analog channel excitation: 250µA or 2.5mA precision current source, 4.5V voltage, can switch external power supply; General Excitation: Can turn on and close 12V power supply (maximum 150mA) to power sensors and accessories, and can turn on and close 5V power supply (maximum 25mA) to power analog channels. | |||||||||
Analog sensors | |||||||||
Several common sensors are introduced, but the sensors that the DT80 can connect to are not limited to the following types. Thermocouple Thermocouple types: B, C, D, E, G, J, K, N, R, S, T-type; Thermocouple calibration: ITS-90; RT DS RTDs material types: Pt, Ni, Cu; Resistance range: 10Ω to 10KΩ; Thermistor Thermistor type: YSI400xx series; Resistance range: <10kΩ Note 1: Other thermistor types are also supported. Note 2: The measurement range can be expanded by parallel resistance. Single-chip temperature sensor Support types: LM34-60, AD590\592, TMPxx, LM135\235\335; Strainer and bridge sensor Configuration: 1/4 bridge, 1/2 bridge and full bridge; Excitation: voltage or current; 4-20MACurrent ring Internal 100Ω or external shunt resistor. | |||||||||
Digital Channel | |||||||||
Digital input/Output 8 two-way channels Input type: 8 logic levels (maximum 20/30V); Output type: 4 field effect transistors (maximum: 30V, 100mA), 4 logic outputs; Relay output 1 direct-connected self-locking relay (maximum: 30Vdc, 1A). | |||||||||
Counting channel | |||||||||
Low speed counting 8-channel counter, shared with digital channels; low-speed counting function does not work in sleep mode. Model: 32bit; Maximum counting rate: 10Hz; Special counting input 4 high speed or 2 phase encoder inputs Model: 32bit; Maximum counting rate: 100kHz; Input type: 2 logic level inputs (maximum ±30V). 2 magnetic induction (maximum ±10V) sensitivity inputs (10mV). | |||||||||
Serial Channel | |||||||||
SDI-12 There are four SDI-12 channels shared with digital channels, and each SDI-12 channel can be connected to many SDI-12 sensors; | |||||||||
| Compute channel | |||||||||
| The computing channel can perform arithmetic, trigonometric functions, correlation, logic and statistical analysis of data from analog channels, digital channels or serial channels collected by the data collector. | |||||||||
Call the police | |||||||||
| Conditions: below, above, within or outside the range; Delay: optional alarm response time; Action: Digital output, pass information or execute any datataker command. | |||||||||
Data collection list | |||||||||
| Number of schedules: maximum 11; Schedule sampling interval: Each schedule has a separate sampling interval, which can be selected from 10ms to days. | |||||||||
Data storage | |||||||||
Built-in storage Storage space: 128MB, about 10,000,000 data can be stored (large space memory can be customized); External storage device USB1.1, USB2.0 and other USB flash memory devices. | |||||||||
| Communication panel | |||||||||
Network cable port Panel: 10Mbps; Protocol: TCP/IP, Modbus protocol; USBport Panel: USB1.1 (virtual communication interface); Protocol: ASCII command; Serial sensor port Panels: RS232, RS422m, RS485; Speed: 300 to 115200 baud rate; Flow control: Hardware (RTS/CTS); Software (XON/XOFF): None Protocol: Modbus protocol, serial sensor; | |||||||||
Network Services (TCP/IP) | |||||||||
| Use a network cable port or built-in Modem Command panel: Enter the ASCII command panel of DT80M through TCP/IP; Network server: access the status of existing data and data acquisition through web pages, set the user's characteristic display interface, and download CSV format data; Modbus server (controlled end): obtain data and data acquisition status through the Modbus client; Modbus client (main control): read data from the modbus device or write data to the modbus device; FTP server: Obtain stored data through a browser or FTP client; FTP client: Automatically download data to the FTP server. Email client: receives data and warning information from the data collector; DDNS client: Has suffered from dynamic DNS remote access data collector | |||||||||
