LT DIN Rail Digital Transmitter with Serial Data Communication and Analog outputs for Pulse to 4-20 mA Converter for Frequency, Rate or Period Inputs

Price: $334.00

P/NLT60FR

Main Board

Power (Isolated)

Signal Input (Isolated)

Order Guide

Certificates of Compliance

Intertek #4006497

RoHS 3 Compliant

CE Certificate

LT Transmitter for Frequency Rate or Period Inputs

Features

Inputs from NPN or PNP proximity switches, contact closures, digital logic, magnetic pickups down to 12 mV, or AC inputs up to 250 Vac
Arithmetic functions A+B, A-B, AxB, A/B, A/B-1 (draw)
Two independently field-scalable pulse input channels from 0.005 Hz to 1 MHz
Line frequency measurement to 60.0000 in a few line cycles
4-20 mA, 0-20 mA, 0-10V or -10V to +10V transmitter output, (isolated)
Analog output resolution 0.0015% of span, accuracy ±0.02% of span
RS232 or RS485 serial data, Modbus or Laurel ASCII protocol (isolated)
Dual 120 mA solid state relays for alarm or control (isolated)
5V, 10V, 12V, or 24V dc transducer excitation output (isolated)
Power 85-264 Vac / 90-300 Vdc or 10-48 Vdc / 12-32 Vac (isolated)
DIN rail mount housing, 22.5 mm wide, detachable screw-clamp connectors
Operating temperature from -40°C to 70°C (-40°F to 158°F)

Optional

The Laureate 4-20 mA, 0-20 mA, 0-10V or -10V to +10V and RS232/RS485 output transmitter for pulse to 4-20 mA converter accepts two independently scalable input channels from a wide range of pulse sources, such as NPN or PNP proximity switches, contact closures, digital logic, magnetic pickups down to 12 mV, or AC voltages to 250 Vac. Input frequencies can range from 0.005 Hz to 1 MHz. Applications include the measurement of AC line frequency, RPM, speed or rate from proximity switch inputs, and flow rate from turbine flow meter inputs.

With a Standard main board, the transmitter output can be scaled to track frequency in Hz, rate (such as gallons per minute), or period (inverse of frequency). Square root extraction is standard.
With an Extended main board, the transmitter output can track rate or totalized rate (such as gallons) whether the transducer output is linear, requires square root extraction, or requires custom curve linearization. The latter can be provided by a curvilinear spline fit with up to 180 data points. The transmitter can also count up to a preset total or down from a preset total to zero. Such applications typically make use of optional dual solid state relays, which are available as options. External reset of totals is via a special three-position screw terminal connector. The two input channels A & B can also be combined arithmetically to provide an analog transmitter output that tracks A+B (e.g., sum of two flows), A-B (e.g., difference of two flows), AxB (e.g., horsepower as product of force and RPM), A/B (ratio of two flow), and A/B-1 (draw or relative elongation of material between rollers).

Exceptional Accuracy and Stability. Laureate transmitters determine frequency by taking the inverse of period as measured with a calibrated quartz crystal time base. This results in extremely accurate and stable 6-digit internal readings (±999,999 counts), which are then processed in software. The analog output is generated by an ultra-linear 16-bit (65,536 step) digital-to-analog converter (DAC) for 0.02% output accuracy. The update rate of the transmitter output is a programmed gate time + 30 ms + 0-2 signal periods. For a 60 Hz signal, the update rate would be 20 per second. Such fast update rates are ideal for alarm and control.

The update rate of the transmitter output is a programmed gate time + 30 ms + 0-2 signal periods. For a 60 Hz signal, the update rate would be 20 per second. Such fast update rates are ideal for alarm and control.

All signal conditioner board ranges are factory-calibrated, with calibration factors for each range securely stored in an onboard EEPROM. These factors can be scaled via software to accommodate external shunts, enabling field replacement of signal conditioner boards without necessitating recalibration of the associated transmitter. For optimal accuracy, factory recalibration is recommended annually. All Laurel Electronics instruments undergo factory calibration using the industry-leading Fluke calibrators, which are recalibrated yearly and certified traceable to national standards, ensuring the highest level of precision and reliability.

Laureate Transmitters are easily programmed with Laurel’s free Instrument Setup Software, downloadable from our website and compatible with Windows PCs, requiring a data interface board for setup.

Standard Features of Laureate LT transmitters Include:

Serial communications output, (isolated), RS232 or RS485 (half or full duplex), jumper selectable. Three protocols are user selectable: Modbus RTU, Modbus ASCII, or Laurel ASCII. Modbus operation is fully compliant with Modbus Over Serial Line Specification V1.0 (2002). The Laurel ASCII protocol is simpler than the Modbus protocol and is recommended when all devices are Laureates.
4-20 mA, 0-10V or -10V to +10V analog transmitter output, (isolated), jumper-selectable and user scalable. All selections provide 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. Note that Ethernet data I/O is provided by Laurel's LTE Series transmitters.
Dual-channel pulse inputs for voltage signals, NPN or PNP proximity switches, contact closures, magnetic pickups or flow meters.
Dual solid state relays, (isolated), for alarm or control. Rated 120 mA at 130 Vac or 170 Vdc.
Selectable transducer excitation output, (isolated), user selectable 5V@100 mA, 10V@120 mA, 12V@100 mA or 24V@50 mA.
Power 85-264 Vac, (isolated), low-voltage 10-48 Vdc or 12-32 Vac power is optional.

Digital signal filtering modes can be selected to ensure 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.
An adaptive moving average filter selection provides a choice of 8 time constants from 80 ms to 9.6 seconds. 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.

Peak and valley values are automatically captured. These may be displayed via Laurel's free Instrument Setup Software, which runs on a PC under MS Windows or can be transmitted as serial data.

Two control inputs (CMOS/TTL levels, logic 0 = tied to digital ground, logic 1 = open) or dry contacts that can be set to control / activate 14 transmitter commands.

An (isolated) 5, 10, 12, or 24 Vdc excitation output is standard to power transducers or two-wire transmitters. Ratiometric operation, which automatically compensates for changes in the applied excitation, is jumper selectable for applications, such as bridges, where the signal to be measured is proportional to the excitation level.

LT series DIN rail Transmitters & signal conditioners can be interfaced to a wide range of sensors and transducers using one of seven available plug-in signal conditioner boards. The transmitters duplicate the high performance (high accuracy, high read rate) and extensive programmable features of Laureate 1/8 DIN digital panel meters, counters and timers. They utilize the same signal conditioners boards, much of the same firmware, and Laurel's free Windows-based Instrument Setup Software. They come in a compact DIN rail mount package with detachable screw-clamp connectors for easy wiring.

The LT series Transmitters accessible from this page include a 4-20 mA, 0-20 mA, 0-10V, or -10V to +10V analog output (isolated, user selectable), an RS232 or RS485 serial data interface (isolated, user selectable), and dual 120 mA solid state AC/DC relays (isolated). An (isolated) 5, 10, 12, or 24 Vdc transducer excitation output is included with all models other than those with a temperature or AC RMS signal conditioner.

Connecting Laureate LT Transmitters to a Local Area Network (LAN)

Up to 30 Laureate LT Transmitters and/or Digital Panel Meters can be configured for RS485 and daisy-chained to an LT Transmitter for seamless LAN integration. Alternatively, Laurel LTE series Ethernet transmitters can connect directly to a LAN via an Ethernet cable. Setup for both configurations is streamlined using Laurel’s free Instrument Setup Software, which simplifies node discovery and transmitter configuration.

Flexible Communication Options for LT Transmitters

Laureate Transmitters can be equipped with Laurel communication boards to support various interfaces and protocols. These include serial interfaces with ASCII or Modbus RTU protocols, and Ethernet interfaces with web access, ASCII, or Modbus TCP/IP protocols, ensuring versatile connectivity for your commercial applications.

	LT Transmitter Signal Input & Function	Model Series
1	DC Input Voltage and Current	LT-DC
2	AC RMS Voltage or Current	LT-RMS
3	Process Voltage or Current	LT-P
4	Weighing Applications	LT-WA
5	Load Cell & Microvolt Signals	LT-WM
6	Thermocouple (Types J, K, T, E, N, R, S)	LT-TC
7	RTD Temperature	LT-RTD
8	Resistance in Ohms	LT-R
9	Frequency, Rate, Speed	LT-FR
10	Pulse Input Totalizer	LT-FR
11	Process Signal Totalizer	LT-VF
12	Sum, Difference, Ratio, Product of 2 Inputs	LT-FR
13	Batch Controller Pulse Input	LT-FR
14	Batch Controller Analog Input	LT-FR
15	On/Off Duty Cycle	LT-FR
16	Stopwatch Timing for Single Events	LT-FR
17	Average Time of Periodic Events	LT-FR
18	AC Phase Angle and Power Factor	LT-FR
19	Quadrature Position or Rate	LT-QD

4-20 mA Transmitter for Frequency, Rate or Period Input

Signal Input
Types	AC, pulses from NPN, PNP transistors, contact closures, magnetic pickups
Grounding	Common ground for channels A & B
Chan. A Frequency	0.005 Hz to 1 MHz
Chan. B Frequency	0.005 Hz to 250 kHz
Minimum Signal	Nine ranges from (-12 to +12 mV) to (+1.25 to +2.1V)
Maximum Signal	250 Vac
Noise Filter	1 MHz, 30 kHz, 250 Hz (selectable)
Contact Debounce	0, 3, 50 ms (selectable)
Time Base Accuracy	Quartz crystal calibrated to ±2 ppm
Recalibration: All ranges are calibrated at the factory. Recalibration is recommended every 12 months.
Analog Output (standard)
Output Levels	4-20 mA, 0-20 mA, 0-10 Vdc, -10 to +10Vdc (user 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
Output Update Rate	Programmed gate time + 30 ms + 0-2 signal periods
Output Isolation	250V rms working, 2.3 kV rms per 1 minute test
Serial Data Output (standard)
Signal Types	RS232 or RS485 (half or full duplex), jumper selectable
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 RTU, Modbus ASCII, Custom ASCII
Modbus Compliance	Modbus over Serial Line Specification V1.0 (2002)
Ethernet Connector	RJ45 jack for 10/100Base-T Ethernet cable
RS232/485 Connector	Screw terminals for easy daisy chaining
Digital Addresses	247 for Modbus, 31 for Custom 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
Excitation Output (standard)
5 Vdc	5 Vdc ± 5%, 100 mA (jumper selectable)
10 Vdc	10 Vdc ± 5%, 120 mA (jumper selectable)
12 Vdc	12 Vdc ± 5%, 100 mA (jumper selectable)
24 Vdc	24 Vdc ± 5%, 50 mA (jumper selectable)
Output Isolation	50 Vdc 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 at 24V	1.5W typical, 3W with max excitation output
Environmental
Operating Temperature	-40°C to70°C (-40°F to 158°F)
Storage Temperature	-40°C to 85°C (-40°F to 185°F)
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.
Mechanical
Enclosure	Rugged black polycarbonate housing material
Mounting	35 mm rail per DIN EN 50022
Dimensions	129 x 104 x 22.5 mm case
Connectors	Detachable screw clamp connectors meet VDE / IEC / UL / CSA standards. RJ45 jack for Ethernet
Tightening Torque	Screw terminal connectors: 5 lb-in (0.56 Nm)
Weight	Complete transmitter: 183 g (6.5 oz)
General
Programming	Utilize Laurel's free Instrument Setup Software, which runs on a PC under MS Windows.
Security	Lockout options available using Laurel's free Instrument Setup Software.
Warranty	3 years parts & labor
Recalibration: All ranges are calibrated at the factory. Recalibration is recommended every 12 months.

Transmitter Pinout

Free Instrument Setup Software for Series 2 Laureates


1/8 DIN Digital Panel Meters	DIN Rail Transmitters

Free Downloadable Windows-based Instrument Setup (IS) software (Data Interface Board Required) for use with our programmable Digital Panel Meters, Scale Meters, Counters, Timers, Remote Displays, and Transmitters, are an easy method to set up Laureate 1/8 DIN digital panel meters, counters, timers, remote displays, and DIN-rail transmitters, as explained in the Instrument Setup Software Manual. Laureate 1/8 DIN instruments can also be set up from the front panel, as explained in their respective Owners Manuals. Instrument Setup software is of benefit whether or not the PC is connected to the instrument.

When the PC is connected to the instrument, Instrument Setup software can retrieve the setup file from the instrument or open a default setup file or previously saved setup file from disk View Setup, then provides graphical user interface (GUI) screens with pull-down menus applicable to input, display, scaling, filtering, alarms, communications, analog output, and front panel lockouts. Fields that are not applicable to the instrument as configured are either left out or grayed out. Clicking on any item will bring up a detailed Help screen for that item. After editing, the setup file can be downloaded, uploaded to the instrument, or saved to a disk. The same setup file can then be downloaded into multiple instruments.
When the PC is not connected to the instrument, the above GUI screens can be used to set up a virtual instrument. The setup file can then be saved to disk. Switching toView Menu then brings up a screen with the required front panel programming steps. This view can be printed out for use at the instrument site and to serve as a hard copy record.

Download Free Instrument Setup Software

Installation

Set User Account Control (UAC) of MS Windows to "Never notifiy me" so that Instrument Setup Software can create directories. The UAC change screen can be reached as follows:

Under Windows 7, click on the Windows Start button in the lower left of the desktop and enter "UAC" in the search field.
Under Windows 8, navigate to Control Panel, then to the "User Accounts and Family Safety" section, and click on "Change User Account Control Settings."
Under Windows 10, click on the Windows Start button in the lower left of the desktop, then on "Settings", and enter "UAC" in the search field.
Reboot your computer for the changed UAC setting to take effect.

RJ11-to-DB9 cable with rear view of DB9 connector to PC

RS232 cable, meter to PC, P/N CBL01

Laureate 1/8 DIN Laureate instruments must be equipped with a serial communications board and be connected to the computer via a serial communications cable. The connection can be via RS232, RS485, USB or Ethernet. Following setup, the serial communications board may be removed from the instrument if desired. The wiring of the RS232 cable is illustrated above with end views of the two connectors.

Laureate LT Series transmitters come standard with a 3-wire serial interface, which can be jumpered for RS232 or RS485.
Laureate LTE Series transmitters come standard with an Ethernet interface.

Meter Setup Screens

Click on any of the reduced screens below for a full-size screen view, then click on the Back button of your browser to return to this page. The screens examples below are for a fully-loaded Series 2 Digital Panel Meter (DPM), which is connected to the PC via RS232. If the meter is a Series 1 meter (pre-2007), this is sensed by the software, and somewhat different screens are brought up. Please see Series 1 setup screens.

Laurel Dual Channel Pulse Input Rate Meter

Welcome Screen

From the computer desktop, click on Start > Programs > IS2 > IS2. Or click on the IS icon on your desktop. This splash screen will be displayed for three seconds. The software revision number is in the lower right.

Communications Selection Screen

Specify your desired communication protocol and the serial communications bus type, which should match the jumper setup of the instrument. Select None if the PC is not connected to the instrument.

Establish Communications Screen

If you selected RS-232, you will be asked to specify the PC Com Port and Baud Rate, which should match the jumper setup of the instrument. Click on Establish. With the right settings, the Communications Established field will light up in green, and the Meter Type will be recognized. If so, click onMain Menu.

Main Menu Screen

Click on File > Default Setup to retrieve the default setup file from disk for your type of meter. Click on File > Open Setupto retrieve a previously saved setup file from disk or on File > Save Setup to save your edited setup file to disk. Click onDPM > Get Setup to retrieve the setup file from your meter or on DPM > Put Setup to download your edited setup file into the meter.

DPM Input + Display Setup Screen

From the Main Menu, click on View > Setup, then on theInput+Display tab. You can now specify the meter hardware, signal type, display mode, and functions of control inputs A and B. Clicking on any item brings up a pull-down menu with the available choices.

DPM Scaling Setup Screen

Click on the Scaling tab, which provides three scaling methods to relate the signal to the displayed reading: 1) Scale and Offset method, 2) Coordinates of two points method, and 3) Reading Coordinates of Two Points method. The last method uses actual high and low signals, and the computer will prompt you.

DPM Filter Setup Screen

Click on the Filter tab, which allows you to specify the digital filter time constant (if any), the adaptive filter threshold, and whether Peak / Valley values are filtered or unfiltered. As for all setup screens, clicking on the F1 key while an item is highlighted brings up a Help screen for that item, as illustrated.

DPM Relay Alarms Setup Screen

Click on the Relay Alarms tab, which allows you to set up Alarms 1 and 2 for the optional dual relay output board. Clicking on any of the four numeric fields changes these to green and brings up a special field to enter the desired numeric value, which is tied to the displayed reading.

DPM Communications Setup Screen

Click on the Communications tab so set up serial communications. In particular, you can special the Serial Protocol and the meter address if multiple meters are to be addressed on the same serial data line.

DPM Analog Output Setup Screen

Click on the Analog Out tab so set up the optional analog output board. Three output ranges are selectable, the endpoints of which can be tied to user-specified High and Low readings.

DPM Lockouts Setup Screen

Click on the Lockouts tab to check off menu items which will no longer be accessible from the front panel of the meter. This will simplify meter operation and prevent unintended setup changes.

Meter Setup Utilities

DPM Front Panel Setup Screen

As an aid to programming the meter from the front panel when a serial connection is not available, you can return to the Main Menu and click on View > Menu. The required sequence of front panel screens will then be displayed. Click on any step in the sequence for the meaning of each digit, as illustrated for the FILtEr step. For a hardcopy, simply press on Print.

DPM Jumper Setup Screen

Specify your desired communication protocol and the serial communications bus type, which should match the jumper setup of the instrument. Select None if the PC is not connected to the instrument.

DPM Jumper Setup Screens

Click on any of the displayed plug-in boards, and you will be presented with the jumper positions and electrical connections for your selected board. This minimizes the need to refer to the printed manual.

DPM Commands Screen

This page allows you set up external input, serial communications, an analog output proportional to the display (optional), and lockouts for Laureate digital counters. The grayed out area at the top right of the screen applies to Laureate remote displays.

Graphical Output Screens (not available with Ethernet)

From the Main Menu, click on Readings if your PC is connected to the meter. A pull-down menu then offers three choices: List, Plot and Graph.

List presents the latest readings in a 20-row by 10-column table. Press Pause at any time to freeze the display. This is one method to capture peak readings.
Plot generates a plot of readings vs. time in seconds. It effectively turns the DPM-PC combination into a printing digital oscilloscope.
Graph generates a histogram where the horizontal axis is the reading and the vertical axis is the number of occurrences of readings. The display continually resizes itself as the number of readings increases.

DPM Calibration Screens

Click on the Scaling tab, which provides three scalClick on the Scaling tab, which provides three scaling methods to relate the signal to the displayed reading: 1) Scale and Offset method, 2) Coordinates of two points method, and 3) Reading Coordinates of Two Points method. The last method uses actual high and low signals, and the computer will prompt you.

Frequency Meter Calibration Screen

Calibration of the quartz crystal of the Laureate frequency meter requires the input of a known frequency from a calibrator. Apply the frequency, then enter the frequency in Hertz. Calibration will be automatic, with storage of the calibration factor stored in non-volatile memory.

Dimensions

Dimensioned CAD assembly drawings in EPRT, STEP, x_t, .dwg, pdf file formats: Laureate-transmitter-case.zip (zipping prevents browser from opening CAD files as text files).

Instrument Datasheet

Instrument Manual

Instrument Setup Software

Instrument Data Logging Software

AC Line Frequency
	Laureate frequency meters and transmitters accept line voltages up to 250 Vac and output line frequency to 6-digit accuracy (50.0000 or 60.0000) in a few line cycles. Fast low frequency response is achieved by timing the period and taking its inverse.
RPM and Speed
	Laureate frequency meters and transmitters can sense low-level signals from magnetic pickups or the NPN or PNP transistor output of active sensors. These can be powered directly by the meter or transmitter. Output in RPM or units of speed is achieved by mathematical scaling.
Simultaneneous Flow Rate and Total
	Laureate frequency meters and transmitters are compatible with all flow meters which generate pulses at a frequency proportional to flow rate. The Extended version can display scaled rate or total for the same input at the push of a button, and alarm from both the rate and total.
Combining Two Rates
	Extended Laureate frequency meters and transmitters offer A+B, A-B and A/B arithmetic functions. A+B allows two input flows to be summed for total flow, while A-B allows outflow to be subtracted from inflow for net flow. Flow ratios aid in the proper mixing of ingredients.
Custom Curve Linearization
	Extended Laureate frequency meters and transmitters can linearize the output turbine flow meters, which tend to be nonlinear on the low end. Linearizing improves the dynamic range and accuracy of turbine flow meters.
System-level Capabilities
Laureate dual-channel rate meters and transmitters can independently scale, display and alarm two pulse input channels. All signal or alarm data can further be transmitted via RS232 or RS485, including peak readings and arithmetic combinations of the two rates.

6 and 12 Foot Power Cables for Digital Panel Meters and Transmitters

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CLB6 & CLB12

6 and 12 foot Power Cables

CBL

$41.00

Add To Cart

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CLB02

USB-to-RS232 Adapter Cable

CBL02

$47.00

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CBL04

RS232 Cable for LT Transmitters

CBL04

$47.00

Ordering Guide

Part Number as Configured: LT60FR

Price as Configured: $334.00

Click on the Option Board Links for More Product Information

Base Item

LT LT DIN Rail Digital Transmitter with Serial Data Communication and Analog outputs for Pulse to 4-20 mA Converter for Frequency, Rate or Period Inputs

$164.00

Main Board

6 LT RS232/RS485 Transmitter, Standard pulse input,

$0.00

8 LT RS232/RS485 Transmitter, Extended pulse input,

With Standard Main Board: Scalable to ±999,999 for frequency, rate, square root of rate, up or down total, period, A-to-B time interval.
With Extended Main Board: Above, plus rate and total simultaneously, ratio (A/B), draw (A/B-1), other arithmetic functions (AxB, A+B, A-B), phase angle, stopwatch, up/down counting, batching operation, linearization of nonlinear inputs.

$55.00

Power (Isolated)

0 Isolated 85-264 Vac or 90-300 Vdc

$89.00

1 Isolated 12-32 Vac or 10-48 Vdc

$89.00

Signal Input (Isolated)

FR Dual pulse or AC inputs

$81.00

Part Number as Configured:

LT60FR

Price as Configured:

$334.00

Quantity:

Extended Price:

$334.00

More Information...

Understanding the LT DIN Rail Digital Transmitter with Serial Data Communication and Analog Outputs

In industrial automation and control systems, accurate measurement and conversion of various signals are crucial. The LT DIN Rail Digital Transmitter is a versatile and essential component designed for this purpose. Here’s a comprehensive look at what makes this device a valuable asset in managing frequency, rate, or period inputs.

What is an LT DIN Rail Digital Transmitter?

An LT DIN Rail Digital Transmitter is a sophisticated device used to convert frequency, rate, or period inputs into a standardized analog output. It is designed to be mounted on a DIN rail, which is a standard rail used for mounting electrical components in control cabinets. This transmitter is highly regarded for its precision and reliability in industrial settings.

Key Features

DIN Rail Mounting: The DIN rail mounting system ensures a secure and organized installation within control panels. It simplifies wiring and makes maintenance easier, as the transmitter can be easily accessed and replaced if necessary.
Digital Processing: The LT transmitter uses advanced digital technology to process input signals. This enables accurate measurement and conversion of input frequencies or rates into corresponding output values.
Serial Data Communication: One of the standout features of this transmitter is its capability for serial data communication. This allows for seamless integration with other digital systems and devices. Serial communication protocols such as RS-232 or RS-485 can be used to transmit data to a central control system or monitoring software.
Analog Outputs: The device converts the measured frequency or rate into a linear analog output, typically in the form of a 4-20 mA current signal. This analog output is widely used in industrial applications for connecting to various control and monitoring systems.
Pulse-to-4-20 mA Conversion: The transmitter can take pulse signals and convert them into a 4-20 mA output. This is particularly useful in scenarios where a digital pulse signal needs to be translated into a standardized analog format for further processing or display.

Applications

Industrial Process Control: The LT transmitter is used in process control systems where precise measurement of frequency or rate is required. It helps in monitoring and controlling various parameters in manufacturing and processing plants.
Flow Measurement: In systems where flow rates are measured using pulse output devices, the LT transmitter converts these pulses into a 4-20 mA signal, making it compatible with standard flow meters and controllers.
Speed Monitoring: For applications involving motor speed or rotational speed monitoring, the transmitter converts frequency data into an analog signal that can be used for speed control and monitoring.
Data Acquisition Systems: The serial data communication feature allows for easy integration into data acquisition systems, enabling remote monitoring and data logging of process parameters.

Benefits

Accuracy and Precision: The digital processing ensures accurate conversion of input signals, minimizing errors and improving the reliability of measurements.
Versatility: With its ability to handle various input types and provide standard analog outputs, the LT transmitter is versatile and suitable for a range of applications.
Ease of Integration: Serial data communication and analog outputs make it easy to integrate the transmitter into existing control systems and monitoring setups.
Compact and Reliable: The DIN rail design provides a compact and robust solution for industrial environments, ensuring durability and long-term performance.

Conclusion

The LT DIN Rail Digital Transmitter with Serial Data Communication and Analog Outputs is a valuable tool for industrial automation, offering precise signal conversion and reliable performance. Its ability to handle pulse inputs and convert them to standard analog outputs, combined with its digital processing and communication features, makes it an essential component for various applications. Whether you’re managing flow rates, monitoring speed, or integrating with data acquisition systems, this transmitter provides the accuracy and versatility needed to enhance your control processes.

Understanding the Applications of LT DIN Rail Digital Transmitters with Serial Data Communication and Analog Outputs

In industrial automation and control systems, precise measurement and reliable data transmission are critical for maintaining operational efficiency and safety. The LT DIN Rail digital transmitter with serial data communication and analog outputs serves as a versatile component in such systems, offering a solution for converting pulse inputs to analog signals such as 4-20 mA. This article explores the key applications and advantages of using these transmitters in various settings.

What is an LT DIN Rail Digital Transmitter?

An LT DIN Rail digital transmitter is a compact device designed for mounting on a DIN rail, which is a standardized metal rail used for mounting circuit breakers and other electrical devices in equipment racks. This transmitter is engineered to handle pulse signals and convert them into analog outputs, specifically a 4-20 mA current signal. It also features serial data communication capabilities, allowing for integration with other digital systems.

Applications in Industrial Settings

Flow Measurement and Control

In fluid handling systems, accurate flow measurement is essential. The LT DIN Rail digital transmitter can convert pulse signals from flow meters (which often output frequency or pulse signals proportional to flow rate) into a 4-20 mA analog signal. This analog signal can then be used by control systems to monitor and adjust flow rates in real-time, ensuring consistent performance and preventing overflows or shortages.
Frequency and Rate Monitoring

Many industrial processes require monitoring of frequencies or rates, such as rotational speed in motors or conveyor belts. The transmitter's ability to convert pulse inputs (which could represent frequency or rate) into a 4-20 mA signal allows for easy integration with existing analog control systems. This functionality helps in monitoring and controlling machinery performance, enhancing overall operational efficiency.
Process Automation

In process automation systems, the LT DIN Rail transmitter provides a reliable means of converting pulse signals from various sensors or meters into analog signals that can be used by automated systems. For instance, it can be used in systems where sensors provide pulse outputs related to process variables like temperature, pressure, or level. The analog outputs facilitate the integration of these sensors with process control systems, enabling automated adjustments based on real-time data.
Data Logging and Analysis

The serial data communication feature of the LT DIN Rail digital transmitter allows for seamless integration with data logging and analysis systems. By transmitting data digitally, it supports more accurate and efficient data collection, which is crucial for analyzing system performance and making informed decisions. This capability is particularly valuable in industries that rely on detailed performance data for optimization and troubleshooting.
Measurement in Harsh Environments

The rugged design of DIN Rail-mounted transmitters makes them suitable for use in harsh industrial environments. Their robust construction ensures reliability and durability, even in settings with high levels of vibration, dust, or moisture. This makes them ideal for applications in manufacturing plants, chemical processing, and other challenging environments.

Advantages of LT DIN Rail Digital Transmitters

Ease of Installation: The DIN Rail mounting system simplifies installation and maintenance, allowing for quick replacement and upgrades.
Flexibility: The ability to handle various pulse input types and convert them to a standardized analog output makes these transmitters versatile for different applications.
Integration: Serial data communication facilitates easy integration with digital control and monitoring systems, enhancing overall system connectivity.
Accuracy: High precision in pulse-to-analog conversion ensures reliable data representation and accurate control.

Conclusion

LT DIN Rail digital transmitters with serial data communication and analog outputs play a crucial role in modern industrial automation systems. Their ability to convert pulse inputs into 4-20 mA analog signals, combined with digital communication capabilities, makes them invaluable for applications ranging from flow measurement to process automation. By providing accurate and reliable data transmission, these transmitters help optimize performance, improve efficiency, and ensure the smooth operation of complex industrial processes.

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LT DIN Rail Digital Transmitter with Serial Data Communication and Analog outputs for Pulse to 4-20 mA Converter for Frequency, Rate or Period Inputs