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Transmitters, 4-20 mA & Modbus - Panel Meters - Counters - Timers - Ethernet - USB - RS485 - RS232

LTE61FR DIN Rail Transmitter with Ethernet I/O, 4-20 mA Analog Output, and Dual Relays

Dual channel pulse or AC inputs configurable for frequency, rate, rotal, or timing., Ethernet I/O plus 4-20 mA or 0-10V analog output and dual relays

Model LTE61FR includes:

  • Dual channel pulse or AC inputs configurable for frequency, rate, rotal, or timing.
  • 4-20 mA or 0-10V isolated analog output
  • Modbus or ASCII serial data output
  • Low voltage power 10-48 Vdc or 12-30 Vac
  • Two 120 mA solid state relays

  • 35 mm DIN rail mounting

Model LTE60QD DIN rail transmitter by Laurel Electronics has Dual channel pulse or AC inputs configurable for frequency, rate, rotal, or timing., Ethernet I/O plus 4-20 mA or 0-10V analog output and dual relays. The model is configured for Standard main board and Low voltage power 10-48 Vdc or 12-30 Vac. It can be programmed for frequency, rate, period, totalizing, and timing.

The Laureate dual-channel frequency, rate and period transmitter is for frequency from 0.005 Hz to 1 MHz, rate in engineering units, or period (inverse of frequency). Values can range to 999,999 counts. Applications include the accurate transmission of AC line frequency, RPM, speed from proximity switch inputs, and flow from turbine flow meter inputs. The Laureate counter determines frequency by timing an integral number of periods over a specified gate time, and then taking the inverse of period.

The Laureate dual-channel up or down totalizer may be independently set up and scaled to count up from zero (or other value) to a preset limit, or to count down from a preset value to zero (or other limit). Countdown operation is set up by entering a negative scale factor. The totalizer can display values from -999,999 to 999,999 with a programmable decimal point. Scaling allows direct readout in engineering units. Totals are stored in non-volatile memory so as to be retained in the absence of power.

The Laureate stopwatch transmitter times single events which produce start and stop pulses. It can also time the width of a single pulse. Highest resolution is 0.2 us. The event time may be displayed H, M or S format with six-digit resolutionor or in HH.MM.SS clock format with 1 s resolution. The stopwatch display is updated during timing. Accumulated time from multiple events is also tracked and may be displayed to 999,999 hours.

The Laureate A-to-B Time Interval Meter can display pulse width or time delay between individual pulses to a resolution of 0.2 µs. It can also display average pulse width or average time delay between multiple pulses. Time interval is measured between inputs on channels A and B. Time interval can be displayed in seconds, milliseconds, or microseconds with 6-digit resolution.

The FR dual-channel signal conditioner accepts inputs from proximity switches w ith PNP or NPN output, TTL or CMOS logic, magnetic pickups, contact closures, low-level outputs from turbine flow meters down to 12 mV, and high-level AC line inputs up to 250 Vac. A built-in isolated 5, 10, or 24 Vdc excitation supply can power proximity switches and other sensors, thus eliminating the need for an external power supply.

Three analog output transmitter settings are jumper selectable: 4-20 mA, 0-20 mA or 0-10V. The output tracks the reading up to 99,999 counts that would be 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.


Standard features of Laureate transmitters include:

  • Analog transmitter output, 16-bit, user scalable and isolated. User selectable 4-20 mA, 0-20 mA or 0-10V levels.
  • Serial communications, isolated. User selectable RS232 or RS485, half or full duplex, Modbus or Laurel ASCII protocol.
  • Dual solid state relays for control or alarm, isolated. Rated 120 mA at 130 Vac or 170 Vdc.
  • Transducer excitation output, isolated. User selectable 5V@100 mA, 10V@120 mA or 24V@50 mA.
  • Universal AC power supply for 85-264 Vac.

For detailed transmitter information, specifications, dimensions and pricing, visit the following:

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