Ethernet & 4-20 mA Output Transmitter for DC Voltage or Current

DIN rail mounted, digitally programmable. Includes two relays for alarm or control. Exceptional accuracy at high update rates.

Ethernet transmitter

Features

  • Ethernet Serial Data I/O, Modbus TCP or TDM ASCII protocol
  • 4-20 mA, 0-20 mA or 0-10V transmitter output, 16 bits, jumper selectable, isolated
  • Dual 120 mA solid state relays for alarm or control, isolated
  • 5V, 10V or 24V dc transducer excitation output, isolated
  • ±0.2, ±2, ±20, ±200, ±300V and ±600V voltage input ranges
  • ±2, ±20, ±200 mA and ±5A current input ranges
  • Analog output resolution 0.0015% of span (16 bits), accuracy ±0.02% of span
  • Universal 85-264 Vac / 90-300 Vdc or 10-48 Vdc / 12-32 Vac power
  • Custom curve linearization and rate from successive readings (optional)
  • DIN rail mount housing only 22.5 mm wide, detachable screw-clamp connectors
Description

DC input transmitters provides six voltage input ranges and four current input ranges, all factory calibrated and jumper selectable. The 200.00 mV and 2.0000 V ranges provide a high input impedance of 1 GΩ to minimize the load on the voltage signal. A 5.000A range measures the IR drop across a built-in 10 mΩ current shunt. The transmitters can also easily be scaled in software for use with external shunts.

Fast read rate at up to 50 or 60 conversions per second while integrating the signal over a full power line cycle is provided by Concurrent Slope (Pat 5,262,780) analog-to-digital conversion. High read rate is ideal for peak or valley capture and for real-time computer interface and control.

Digital signal filtering modes are selectable for stable readings in electrically noisy environments.

  • An unfiltered selection provides true peak and valley readings and aids in control applications.
  • A batch average filter selection averages each 16 conversions for an update every 1/4 sec.
  • Dual solid state relays for control or alarm, isolated. Rated 120 mA at 140 Vac or 180 Vdc. The relays can respond to digital readings or to received control characters.
  • An adaptive moving average filter selection provides a choice of 8 time constants from 80 ms to 9.6 s. When a significant change in signal level occurs, the filter adapts by briefly switching to the shortest time to follow the change, then reverts back to its selected time constant. An Auto setting selects the time constant selection based on signal noise.

Standard features of LTE transmitters include:

  • Ethernet I/O, isolated. Supported protocols are Modbus RTU and ASCII (tunneled via Modbus TCP) and TDM ASCII. The latter is simpler than the Modbus protocol and is recommended when all devices are s. Note that RS232 or RS485 data I/O in lieu of Ethernet is provided by LT Series transmitters.
  • 4-20 mA, 0-20 mA or 0-10V analog transmitter output, isolated, jumper-selectable and user scalable. All selections provide 16-bit (0.0015%) resolution of output span and 0.02% output accuracy of a reading from -99,999 to +99,999 counts that is also transmitted digitally. Output isolation from signal and power grounds eliminates potential ground loop problems. The supply can drive 20 mA into a 500 ohm (or lower) load for 10V compliance, or 10V into a 5K ohm (or higher) load for 2 mA compliance.
  • Dual solid state relays, isolated. Available for local alarm or control. Rated 120 mA at 130 Vac or 180 Vdc.
  • Universal 85-264 Vac power. Low-voltage 10-48 Vdc or 12-32 Vac power is optional.

Discovery and configuration of Ethernet Nodes is easily achieved with TDM's Node Manager Software, and the discovered transmitters can then be programmed using TDM's Instrument Setup Software. Both softwares run on a PC under MS Windows and can be downloaded from this website at no charge.

 Ethernet network by TD Micronic
Specifications
Ethernet & 4-20 mA Transmitter for DC Voltage or Current Input
Analog Input Range Resolution Accuracy Input Ohms
DC Voltage ±200.00 mV 10 µV 0.01% FS ± 2 cts 1 GΩ
±2.0000 V 100 µV 0.01% FS ± 2 cts 1 GΩ
±20.000 V 1 mV 0.01% FS ± 2 cts 10 MΩ
±200.00 V 10 mV 0.01% FS ± 2 cts 10 MΩ
±600.0 V* 100 mV ± 0.4 V 10 MΩ
DC Current ±2.0000 mA 0.1 µA 0.01% FS ± 2 cts 100 Ω
±20.000 mA 1 µA 0.01% FS ± 2 cts 10 Ω
±200.00 mA 10 µA 0.01% FS ± 2 cts 1 Ω
±5.000 A 1 mA ±10 mA 0.01 Ω
* Range ETL certified to ±300.0 V
Input Resolution 16 bits (65,536 steps)
Update Rate, Max 50/sec at 50 Hz, 60/sec at 60 Hz
Max applied voltage 600 Vac for 20, 200 & 600 V ranges, 125 Vac other ranges
Over-current protection 25x for 2 mA, 8x for 20 mA, 2.5x for 200 mA, 1x for 5 A
Analog Output (standard)
Output Levels 0-20 mA or 0-10 Vdc (selectable)
Compliance, 4-20 mA 10V (0-500Ω load)
Compliance, 0-10V 2 mA (5 kΩ load)
Output Resolution 16 bits (65,536 steps)
Output Accuracy 0.02% of output span plus conversion accuracy
Output Isolation 250V rms working, 2.3 kV rms per 1 minute test
Ethernet Data I/O (standard)
Type 10/100 Base-T Ethernet per IEEE 802.3
Data Rates 300, 600, 1200, 2400, 4800, 9600, 19200 baud
Output Isolation 250V rms working, 2.3 kV rms per 1 min test
Serial Protocols Modbus TCP, Modbus RTU, Modbus ASCII, TDM ASCII
Modbus Compliance Modbus over Serial Line Specification V1.0 (2002)
Digital Addresses 247 for Modbus, 31 for TDM ASCII
Dual Relay Output (standard)
Relay Type Two solid state relays, SPST, normally open, Form A
Load Rating 120 mA at 140 Vac or 180 Vdc
Transducer Excitation Output (standard)
Output Levels 5V@100 mA, 10V@120 mA, 24V@50 mA (jumper selectable)
Output Isolation 50V from signal ground
Transducer Excitation Output (standard)
Output Levels 5V@100 mA, 10V@120 mA, 24V@50 mA (jumper selectable)
Output Isolation 50V from signal ground
Power Input
Standard Power 85-264 Vac or 90-300 Vdc
Low Power Option 10-48 Vdc or 12-32 Vac
Power Frequency DC or 47-63 Hz
Power Isolation 250V rms working, 2.3 kV rms per 1 min test
Power Consumption 2W typical, 3W with max excitation output
Mechanical
Dimensions 129 x 104 x 22.5 mm case
Mounting 35 mm rail per DIN EN 50022
Connectors Detachable screw-clamp connectors for signal and power RJ45 jack for Ethernet
Environmental
Operating Temperature 0°C to 55°C
Storage Temperature -40°C to 85°C
Relative Humidity 95% at 40°C, non-condensing
Cooling Required Mount transmitters with ventilation holes at top and bottom. Leave 6 mm (1/4") between transmitters, or force air with a fan.
Pinout
Ethernet & 4-20 mA Transmitter for DC Voltage or Current Input Pinout for  LTS serial-to-analog transmitter

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