DT81 Data Acquisition Device - DATA LOGGER MALAYSIA OFFICIAL DISTRIBUTOR | DATA LOGGER MALAYSIA OFFICIAL DISTRIBUTOR

DT81 Data Acquisition Device

>> Robust, Stand Alone, Low Power Data Logger with Dual Channel Isolation Technology
>> Record Temperature, Voltage, Current, 4-20mA Loops, Resistance, Bridges, Strain Gauges, Frequency, Digital, Serial and Calculated Measurements 
>> Up to 3 Analog Sensor Inputs with ±30 Volt Range 
>> Records up to 25 Hz Maximum 
>> Store up to 10 Million Readings/Samples
>> USB Memory Thumb Drive Stores Additional Data
>> Alarms, Web Server, FTP, Modbus/SCADA Compatibility, SDI-12 and Ethernet Functions
>> Includes Software, User Manual, USB Cable and 110/240Vac to 15Vdc Power Adapter

Specifications

Data Channels Up to 3 Analog Channels
Up to 8 Flexible Digital Channels
Analog Channels 2 Wire w/ Com. Ref. Terminal: 3 Channels
2 Wire Isolated: 2 Channels
3 or 4 Wire Isolated: 1
Analog Inputs Inter-Channel Isolation: 100 Volts (Relay Switching)
Analog Section Isolation: 100 Volts (Opto-Isolated)
Input Impedance: 100 KΩ, >100MΩ
Common Mode Range: ±3.5V or ±35V on 30 Volts Range
Analog Measurement Ranges Voltage: ±30 mVdc; ±300 mVdc; ±3 Vdc; ±30 Vdc
Current: ±0.3 mA; ±3 mA; ±30 mA 
Resistance: 100Ω; 1,000Ω; 10,000Ω
Frequency: 100Hz; 10 kHz
Analog Measurement Resolution Voltage: 0.25µV; 2.5µV; 0.25µV; 250µV
Current: 2.5nA; 25 nA ; 250 nA 
Resistance: 1.5 mΩ; 15 mΩ; 150 mΩ
Frequency: 0.0002%; 0.0002%
Analog Measurement Accuracy DC Voltage: 0.1% (5°C to 40°C); 0.35% (-45°C to 70°C) 
DC Current: 0.15% (5°C to 40°C); 0.45% (-45°C to 70°C) 
DC Resistance: 0.1% (5°C to 40°C); 0.35% (-45°C to 70°C)
Frequency: 0.1% (5°C to 40°C); 0.25% (-45°C to 70°C)
Sampling Integrates over 50/60 Hz Line Period for Accuracy and Noise Rejection
Maximum Sample Speed: 25 Hz
Effective Resolution: 18 Bits
Linearity: 0.01%
Common Mode Rejection: >90dB
Line Series Mode Rejection: > 35dB
Sensor Excitation (Supply) Analog Channles: Selectable 250µA or 2.5mA Precision Current Source, 4.5V Voltage Source, or Switched External Supply
General Purpose: Switchable 12V Regulated Supply for Powering Sensors & Accessories (Max. 150mA)
Thermocouples Type: B, C, D, E, G, J, K, N, R S, T 
Calibration Standard: ITS-90
RTDs Materials Supported: Pt, Ni, Cu 
Resistance Range: 10Ω to 10KΩ
Thermistors Type: YSI 400xx Series, other Types* 
Resistance Range: <10kΩ**
* Other Thermistor Types are Supported by Thermistor Scaling and Calculated Channels
** Resistance Range Can Be Increased with the Use of a Parallel Resistor.
Monolithic Temperature Sensors Type: LM34 - 60, AD590, AD592, TMPxx, LM135, LM235, LM335
Strain Gauge and Bridge Sensors Configurations: 1/4, 1/2 & Full Bridge
Excitation: Voltage or Current
4-20mA Current Loop Internal 100R Shunt or External Shunt Resistor
   
Digital Channels 4 Bi-Directional Channels
Digital Input Type: 4 Logic Level (Max. 20/30 Volts)
Digital Output Type: 3 With Open Drain FET (Max. 30V, 100mA), 1 with Logic Output
Relay Output: 1 Latching Relay, contacts (Max: 30Vdc, 1A)
Counter Channels Low Speed Counters:
>> 4 Counters Shared with Digital Inputs
>> 32 Bit Size
>> 10 Hz Max Count Rate
>> Low Speed Counters do not Function in Sleep Mode
Dedicated Counter Inputs:
>> 4 High Speed or 1 Phase Encoder (Quadrature) Inputs
>> 32 Bit Size
>> 10kHz Max Count Rate
>> 2 Logic Level Inputs (Max ±30V)
>> 2 Sensitive Inputs (10mV) for Magnetic Pick Ups (Max. ±10V)
Serial Channels SDI-12:
>> 1 SDI-12 Inputs, Shared with Digital Channels
>> Each Input Can Support Multiple SDI-12 Sensors
Generic Serial Sensor:
>> Flexible Option for Logging From Wide Range of Smart Sensors and Data Streams
>> Host RS232 Port*
>> 300 to 115,200 Baud Rate 
* If used as a Serial Sensor channel then the Host Port is Not Available for Other Communications
Calculated Channels Combine Values from Analog, Digital and Serial Sensors Using Expressions involving Variables and Functions (Arithmetic, Trigonometric, Relational, Logical and Statistical)
Alarms Condition: High, Low or Within Range and Outside Range
Delay: Optional Time Period for Alarm Response
Actions: Set Digital Outputs, Transmit Message, Execute any DataTaker Command
Scheduling Number: 11
Schedule Rates: 10ms to Days
Data Storage Capacity Internal: Approx. 10,000,000 Readings
External USB Drive: 90,000 Readings/MB
Ethernet Comm Port Interface: 10BaseT (10Mbps)
Protocol: TCP/IP
USB Comm Port Interface: USB 1.1 (Virtual COM port)
Protocol: ASCII Command
Host RS232
Comm Port
Speed: 300 to 115,200 Baud (527,600 Default)
Flow Control: Hardware (RTS/CTS), Software (XON/XOFF), None
Handshake Lines: DCD, DSR, DTR, RTS, CTS
Modem Support: Auto-Answer and Dial Out
Protocols: ASCII Command, TCP/IP (PPP), Modbus, Serial Sensor
Network Ethernet and/or Host RS232 (PPP) Communication Ports
Web Server >> Access Current Data and Status from any Web Browser
>> Download Data in CSV Format
>> Command Interface Window
>> Define Mimic Displays
Modbus Server >> Access Current Data and Status from any Modbus Client (SCADA System)
FTP >> Access Current Data and Status from any FTP Client
>> Automatically Upload Logged Data Direct to an FTP Server
Clock Normal Resolution: 200µs
Accuracy: ±1 min/year (0°C to 40°C), ±4 min/year (-40°C to 70°C)
Power Supply External Voltage Range: 10 to 30 Volts DC
Internal Battery: 6 Volts DC 1.2Ahr Lead Acid
Peak Power: 12 W (12 Volts DC 1 Amp)
Power Consumption
(Average)
1 Second Sampling Speed: 1350mW
5 Second Sampling Speed: 500mW
30 Second Sampling Speed: 135mW
5 Minute Sampling Speed: 70mW
1 Hour Sampling Speed: 60mW
Operating Time
(Battery)
1 Second Sampling Speed: 6.5 Hours
5 Second Sampling Speed: 1 Day
1 Minute Sampling Speed: 10 Days
1 Hour Sampling Speed: 3.5 Months
Housing Constructed of Powder Coated Zinc & Anodized Aluminum
Operating Range Temperature: -45°C to 70°C
Humidity: 85% RH, Non-condensing
Standards Compliance CE
Weight 1.5 kilograms
Dimensions 18.0 cm x 13.7 cm x 6.5 cm (180mm x 137mm x 65mm)


DT81 Data Acquisition Device DT81 Data Acquisition Device
>> 3 Analog Sensor Inputs
>> 25Hz Measurement Speed
>> Alarms, Web Server, FTP, ModBus, SDI-12 and Ethernet Functions
>> Includes Software, User Manual, USB Cable and Power Adapter
Part #: DT81
Call To Purchase
03-78762460

Accessories

Channel Expansion Module 20-Channel Expansion Module
>> Increases Number of Channels Available for DataTaker Loggers
>> 12Hz Maximum Measurement Speed
>> Powered by Attached Data Logger (12 Volt Output)
>> Status LED Indicators >> Includes Analog and Control Cable for Connection to Loggers
Part #: CEM20
Call To Purchase
03-78762460
CANgate  CAN to ASCII Gateway CANgate CAN to ASCII Gateway
>> 2 High Speed CAN Bus Ports
>> Compatible with J1939, OBD, ISO and Raw CAN
>> Programmable Serial Sensor Port Required on Data Logger
Part #: CANGATE
Call To Purchase
03-78762460

Applications

  • Research & Development and Agricultural & Aquaculture Research
  • Process, Structural and Machine Down Time Monitoring and Fault Identification
  • Total Energy and Environmental Monitoring
  • Vehicle Testing, GPS, CANgate(optional) with CAN bus, J1939 and OBDII
  • Strain Gauges, Load Cells and Flow Monitoring and Testing