Features
- Two independently scalable totals for Channels A & B
- Inputs from NPN or PNP proximity switches, contact closures, digital logic, magnetic pickups down to 12 mV, or AC inputs up to 250 Vac
- Two independently field-scalable pulse input channels from 0.005 Hz to 1 MHz
- Up counting from zero to preset value using positive scale factor
- Down counting from preset to zero using negative scale factor
- Totals stored in non-volatile memory
- Digital span adjust from 0 to ±999,999, zero adjust from -999,999 to +999,999
- Front panel scalable to ±999,999 for use with current shunts
- 1/8 DIN size with bright red or green 0.56" (14.2mm), high LED digits
- Transducer excitation output, 5, 10, 12, or 24 Vdc (isolated)
- Power 85-264 Vac / 90-300 Vdc or 10-48 Vdc / 12-32 Vac (isolated)
- Operating temperature from -40°C to 70°C (-40°F to 158°F)
- Wide choice of Plug-in-Play options:
- 2 or 4 relays, mechanical or solid state, for alarm or control (isolated)
- 1 or 2 Analog output, 4-20 mA, 0-20 mA, 0-10V, or -10V to +10V (isolated)
- Communications: Ethernet, WiFi, USB, RS232, RS485 (isolated)
- Extended DPM version - See below for all capabilities
The Laureate 1/8 DIN Digital Panel Meter for dual-channel up or down totalizer
is a Standard operating mode of the Laureate counter with the FR dual-channel signal conditioner board that can display frequencies from 0.005 Hz to 1 MHz. Each channel (A or B) 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 six-digit counter display is capable of displaying any value from -999,999 to 999,999 with a programmable decimal point. Scaling allows direct readout in engineering units, such as gallons or cubic feet based on counts from a turbine flowmeter, or the count of cans based on the count of six-packs. The displayed channel (A or B) is selected via a front panel pushbutton. The totals are stored in non-volatile memory so as to be retained in the absence of power.
The minimum recommended complementary option for the Laureate totalizer is the dual setpoint controller output board, which is available with either 8A relays or AC/DC solid state relays.
Laureate Digital Panel Meters 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.
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 digital panel meter. 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.
An Optional Extended DPM Provides Capabilities Beyond Those of the Standard Counter:
- Rate and total simultaneously. Channel A can display total while Channel B displays rate. The selection of A or B for display is via a front panel pushbutton. This mode is ideal for flow applications.
- Up/down counting. Channel A can serve as an up/down counter, where the count direction is dynamically changed by applying a signal to Channel B. For instance, Channel A can count and scale pulses from a turbine flow meter, while Channel B inputs the direction of flow. This allows total volume to be tracked in case of reversible flow.
- Totalizing with external inhibit. Totalizing by Channel A can be temporarily inhibited by applying a signal to Channel B. For instance, 60 Hz AC pulses can be counted by Channel A and be scaled to display elapsed hours. A signal can be applied to Channel B to start or stop pulse counting when a process is in operation.
- Custom curve linearization. Exceptionally accurate custom curve linearization is achievable, for example to linearize the low end of turbine flow meters. For setup, up to 180 data points can be input into a spreadsheet or text file by the user. The computer then calculates spline fit segments, which are downloaded into the meter via RS232. The linearized rate can then be totalized by the Extended counter.
- Arithmetic functions. The Extended counter makes arithmetic functions available, namely A+B, A-B, AxB, A/B and A/B-1. These solve many applications. For instance, A+B allows two input flows to be summed for total volume, while A-B allows outflow to be subtracted from inflow for net volume. A/B allows the mixing of ingredients in a specified ratio. By monitoring and alarming the A/B volume ratio, ingredient B can be added to A until the proper ratio is achieved.
The FR dual-channel signal conditioner accepts inputs from proximity switches with a 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. Jumper selections provide optimum operation for different sensor types and noise conditions. A built-in (isolated) 5, 10, 12, or 24 Vdc excitation supply can power proximity switches and other sensors, and eliminate the need for an external power supply.
- 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 a front panel pushbutton command or control signal at the rear connector, or be transmitted as serial data.
Two rear panel 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 meter 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.
Modular Design for Maximum Flexibility at Minimum Cost
All boards are isolated from meter and power grounds. Optional Plug-in-Play boards for communications and control include Ethernet, WiFi, serial communication boards, dual or quad relay boards, and an analog output board. Laureates may be powered from 85-264 Vac or optionally from 12-32 Vac or 10-48 Vdc. The display is available with bright red or green 0.56" (14.2mm) high LED digits. The 1/8 DIN case meets NEMA 4X (IP65) specifications from the front when panel mounted. Any setup functions and front panel keys can be locked out for simplified usage and security. A built-in 5, 10, 12, or 24 Vdc excitation supply can power transducers, eliminating the need for an external power supply. All power and signal connections are via UL / VDE / CSA rated screw clamp plugs.
The Laureate™ Series features modular design with up to 7 isolated plug-in boards, applicable to all Laureate 1/8 DIN Digital Panel Meters.
Modular Hardware
The design of the Laureate™ Series is modular for maximum flexibility at minimum cost. All boards are isolated from meter and power grounds. The base configuration for a panel meter or counter consists of a main module (with computer and plug-in display boards), a power supply board, and a signal conditioner board. Optional plug-in-play boards include an isolated setpoint controller board, an isolated analog output board, and an isolated digital interface board. Modular design and a choice of plug-in options allow the Laureate to be customized for a broad range of applications from simple monitoring to control and computer interface. There can be up to five plug-in boards in a 1/8 DIN Laureate.

Connecting Laureate Digital Panel Meters to a Local Area Network (LAN)
Up to 30 Laureate Digital Panel Meters and/or LT Transmitters can be configured for RS485 and daisy-chained to an LT Transmitter using Laurel’s High Speed Ethernet-to-RS485 converter board 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 Digital Panel Meters
Laureate Digital Panel Meters 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.
Display | |
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Readout | 6 LED digits, 7-segment, 14.2 mm (.56"), red or green. |
Color | Red or green LED |
Display Range | -999999 to +999999, XXXXEX notation beyond 999999 |
Zero Adjust | -999999 to +999999 |
Span Adjust | 0 to 999999 |
Indicators | Four LED lamps |
Inputs | |
Types | AC, pulses from NPN, PNP transistors, contact closures, magnetic pickups. |
Signal Ground | Common ground for channels A & B |
Channel A Freq. | 0 Hz to 1 MHz |
Channel B Freq. | 0 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) |
Recalibration: All ranges are calibrated at the factory. Recalibration is recommended every 12 months. | |
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 Supply Boards (one required) | |
Voltage, standard | 85-264 Vac or 90-300 Vdc |
Voltage, optional | 12-32 Vac or 10-48 Vdc |
Frequency | DC or 47-63 Hz |
Power consumption (typical, base meter) | 1.2W @ 120 Vac, 1.5W @ 240 Vac, 1.3W @ 10 Vdc, 1.4W @ 20 Vdc, 1.55W @ 30 Vdc, 1.8W @ 40 Vdc, 2.15W @ 48 Vdc |
Power Isolation | 250V rms working, 2.3 kV rms per 1 min test |
Analog Output Boards (one optional) | |
Output levels | 4-20 mA, 0-20 mA, 0-10V, -10 to +10V (single-output option) |
4-20 mA, 0-20 mA, 0-10V (dual-output option) | |
Current compliance | 2 mA at 10V ( > 5 kΩ load) |
Voltage compliance | 12V at 20 mA (< 600 Ω load) |
Scaling | Zero and full scale adjustable from -99999 to +99999 |
Resolution | 16 bits (0.0015% of full scale) |
Isolation | 250V rms working, 2.3 kV rms per 1 min test |
(dual analog outputs share the same ground) | |
Relay Output Boards (one optional) | |
Dual magnetic relays | 2 Form C, 8A max, 440Vac or 125Vdc max, 2500VA or 300W |
Quad magnetic relays | 4 Form A (NO), 8A max, 440Vac or 125Vdc max, 2500VA or 300W |
Dual solid state relays | 2 Form A (NO), AC or DC, 0V - 400V, 120Ma, 35Ohms (max at On-State) |
Quad solid state relays | 4 Form A (NO), AC or DC, 0V - 400V, 120Ma, 35Ohms (max at On-State) |
Relay commons | Isolated commons for dual relays or each pair of quad relays |
Relay isolation | 250V rms working, 2.3 kV rms per 1 minute test |
Relay latching modes | Latching or non-latching |
Relay active modes | Active on or off, active high or low |
Hysteresis modes | QA passband mode, split hysteresis, span hysteresis |
Communication Boards (one optional) | |
Board selections | RS232, RS485 with dual RJ11 connectors, RS485 with dual RJ45 connectors, USB, Ethernet, USB-to-RS485 gateway, Ethernet-to-RS485 gateway, WiFi with built-in antenna plus USB & RS485, WiFi with external antenna plus USB & RS485 |
Protocols | Laurel Custom ASCII (serial), Modbus RTU (serial), Modbus TCP (Ethernet or WiFi) |
Digital addresses | 247 (Modbus), 31 (Laurel ASCII), |
Isolation | 250V rms working, 2.3 kV rms per 1 min test |
Environmental | |
Operating temperature | -40°C to 70°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 |
Protection | NEMA-4X (IP-65) when panel mounted |
Signal Connections | |
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Mechanical | |
Enclosure | 1/8 DIN, high impact plastic, UL 94V-0, color: black |
Mounting | 1/8 DIN panel cutout required: 3.622" x 1.772" (92 mm x 45 mm). |
Dimensions | 4.68" x 2.45" x 5.64" (119 mm x 62 mm x 143 mm) (W x H x D) |
Maximum panel thickness | 4.5 mm (0.18") |
Tightening Torque - Connectors | Screw terminal connectors: 5 lb-in (0.56 Nm) |
Tightening Torque - Pawls | Digital Panel Meter Case Pawls: 5 lb-in (0.56 Nm) |
Weight of base meter | 210 g (7.4 oz) typical (DPM, counter, timer, 6-digit remote display) |
Weight of option boards | 30 g (1.0 oz) typical per board (analog output, relay output, communications) |
General | |
Programming Methods | Four front panel buttons or via Laurel's free Instrument Setup Software, which runs on a PC under MS Windows. |
Security | Lockout options include using the front panel buttons, the free Instrument Setup Software, or a hardware jumper. |
Warranty | 3 years parts & labor |
Recalibration: All ranges are calibrated at the factory. Recalibration is recommended every 12 months. |
Free Instrument Setup Software for Series 2 Laureates
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.











Meter Setup Utilities




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.


Laureate™ 1/8 DIN Case For Laureate Digital Panel Meters, Counters, Timers & Remote Displays

Key Features
- Meets 1/8 DIN Standard.
- Installs from front of panel.
- Short depth behind the panel: only 4" (102 mm) plus connectors.
- Understated 0.157" (4 mm) thick bezel.
- Meets NEMA 4X (IP-65) for high-pressure wawshdon when panel mounted.
- Screw clamps connectors meet VDE / IEC / UL / CSA safety standards.
- Rugged GE Lexan® housing material.
- Safety certified per EN 61010-1.
Dimensions

Maximum panel thickness: 4.5 mm (0.18")
Weight of base meter: 210 g (7.4 oz) typical (DPM, counter, timer, 6-digit remote display)
Weight of option boards: 30 g (1.0 oz) typical per board (analog output, relay output, communications)
Tightening Torque - Connectors: Screw terminal connectors: 5 lb-in (0.56 Nm)
Tightening Torque - Pawls: Digital Panel Meter Case Pawls: 5 lb-in (0.56 Nm)
Dimensioned CAD assembly drawings in EPRT, STEP, x_t. dwg, pdf file formats: Laureate-meter-case.zip (zipping prevents browser from opening CAD files as text files).
Panel Mounting
Slide the meter into a 45 x 92 mm 1/8 DIN panel cutout. Ensure that the provided gasket is in place between the front of the panel and the back of the meter bezel.
The meter is secured by two pawls, each held by a screw, as illustrated. Turning each screw counterclockwise extends the pawl outward from the case and behind the panel. Turning each screw clockwise further tightens it against the panel to secure the meter.
Turning each screw counterclockwise loosens the pawl and retracts it into its well. This position allows installed meter to be removed from their panel, or new meters to be installed in a panel. Do not remove the screws from their pawls. Doing so would cause the screw and pawl to fall off and likely get lost. Do not overtighten so as not to damage the plastic parts.
Up/Down Totalizing | |
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Up/down totalizing is provided by a mode of the Extended counter where pulses are either added or subtracted on Channel A based on a direction input on Channel B. The counter can also be programmed so that counting by Channel A is inhibited by an input on Channel B. |
Combining Two Totals | |
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A+B, A-B and A/B arithmetic functions are available with the Extended counter. A+B sums both totals, while A-B subtracts the outflow total from inflow total. The A/B ratio applied to total helps assure the proper mixing of components. Controller setup and monitoring of the mixing operation are facilitated by optional serial communications. RS485 allows a single data line to handle multiple controllers. |
Up or Down Counting with Preset | |
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A single Laureate dual-channel counter will handle two repetitive fill operations by counting from zero up to a preset, or down from a preset to zero. A dual setpoint relay board is required. |
Machine Rune Time and Utilization | |
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An easy way to measure the run time of machines is to count AC line cycles and scale the total to hours. To display machine utilization or duty cycle in percent, use the Extended counter. Connect Channel A to switched AC and Channel B to the AC line, and have the counter display the A/B ratio with a 100 multiplier. |
Total and Rate Simultaneously | |
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The Extended version of the Laureate dual channel counter can display scaled rate or total for the same channel at the push of a button, and alarm both the rate and total. The Extended version can also do curve linearization, thereby extending the working range and accuracy of flow transducers. |
System-level Capabilities | |
The Laureate dual channel totalizer can independently scale, display and alarm two totals, and the totals plus alarm data can be transmitted via RS232 or RS485. The displayed totals can also be transmitted as an isolated 4-20 mA or 0-10V analog output. The Extended version can further display and transmit arithmetic combinations of the two totals. | ![]() |
IPC
Splashproof Cover
CLB01
RS232 Cable for Meters
CLB02
USB-to-RS232 Adapter Cable
CBL04
RS232 Cable for LT Transmitters
CLB05
USB Data Cable for Meters
CLB06
USB-to-RS485 Adapter Cable
CLB07
USB Programming & Data Cable
CLB08
RS485 Splitter Cable
BKBD
RS485 RJ11 Terminal Block Adapter
What is a Digital Panel Meter for Dual-Channel Pulse Input Totalizer?
A digital panel meter for dual-channel pulse input totalizer is a precision instrument designed to count and display cumulative pulse inputs from two independent channels, such as those from flow meters, encoders, or proximity sensors. These meters are critical in industrial, automation, and process control applications where tracking totalized counts, such as volume, parts produced, or events, is essential. By processing pulse signals from two sources and displaying totals, digital panel meters enable accurate monitoring for tasks like inventory management, batch control, and production analysis.
Unlike single-channel counters, dual-channel digital panel meters offer the ability to monitor and compare two pulse sources simultaneously, providing advanced functionality like summing, differencing, or ratio calculations. Their programmable features and integration capabilities make them ideal for complex systems requiring precise totalization and data processing.
Understanding the Digital Panel Meter for Dual-Channel Pulse Totalization
Digital panel meters for dual-channel pulse input totalizer applications are typically built to the 1/8 DIN standard, fitting compactly into panel cutouts (approximately 92 mm x 45 mm). This compact size ensures compatibility with control panels while optimizing space, making them suitable for industrial control rooms, production lines, or equipment with limited space.
These meters are designed to process pulse signals from two independent sources, such as TTL, NPN, PNP, or dry contact inputs from sensors like flow meters or counters. They can totalize counts (e.g., total pulses, volume, or events), calculate rates, or perform mathematical operations between channels. They feature bright LED or LCD displays, user-friendly interfaces, and communication interfaces like RS-485 or Modbus for integration with automation systems. Advanced features, such as signal debouncing, scaling, and programmable logic, ensure accurate and reliable measurements in noisy or dynamic environments.
How Does a Digital Panel Meter for Dual-Channel Pulse Input Totalizer Work?
A digital panel meter processes pulse signals from two channels to totalize counts and display results accurately. Below is a detailed breakdown of its operation:
- Signal Acquisition:
The meter receives pulse signals from two independent sensors, such as pulses from a flow meter (Channel A) and a counter (Channel B), representing events like flow volume or parts produced. - Signal Conditioning:
The input signals are conditioned through filtering or debouncing to remove noise and ensure accurate pulse detection, especially in environments with electrical interference or mechanical vibrations. - Pulse Counting:
The meter counts pulses from each channel to calculate totals (e.g., cumulative volume, event counts) or rates (e.g., pulses per second). It may also perform mathematical operations like summing (A+B) or differencing (A-B) between channels. - Analog-to-Digital Conversion:
A digital counter or Analog-to-Digital Converter (ADC) processes the pulse signals into a digital format. High-speed counters are critical for capturing rapid pulses or high-frequency inputs. - Processing and Display:
The digital signals are processed by the meter’s microcontroller, which applies calibration, scaling, or unit conversions (e.g., liters, counts, RPM). The results are displayed on a clear digital screen, often with customizable units or decimal precision. - Output and Integration:
The meter may provide outputs like 4-20 mA analog signals, relay contacts for alarms or batch control, or digital communication (e.g., Ethernet, USB) for integration with PLCs, SCADA systems, or data loggers. - Calibration and Configuration:
Users can calibrate the meter for specific pulse inputs and configure settings like scaling factors, count reset, or alarm thresholds to suit application needs.
Key Features of Digital Panel Meters for Dual-Channel Pulse Totalization
Digital panel meters for dual-channel pulse input totalizer applications include features that enhance performance and usability:
- Dual-Channel Processing: Supports simultaneous counting from two pulse sources, enabling comparisons, summing, or differencing of totals.
- High Accuracy: Precise counters and signal processing ensure reliable totalization, even for high-speed or low-frequency pulses.
- Customizable Displays: Multi-color LEDs, bar graphs, or large-digit displays ensure readability in various lighting conditions.
- Programmable Alarms and Control: Setpoints for total counts or rates trigger alerts or control external devices, such as valves or counters for batch processes.
- Communication Options: Protocols like Modbus or Profibus enable integration with industrial automation systems.
- Rugged Design: IP65-rated front panels resist dust and moisture, suitable for harsh industrial environments.
Applications of Digital Panel Meters for Dual-Channel Pulse Totalization
Digital panel meters are widely used for dual-channel pulse totalization in various applications. Key uses include:
- Flow Totalization:
In fluid systems, DPMs totalize pulse inputs from two flow meters, tracking cumulative volumes for inventory or billing purposes. - Batch Control:
In manufacturing, digital panel meters totalize pulses from dual sensors to control batch sizes, triggering actions like valve closure when preset totals are reached. - Production Monitoring:
In assembly lines, DPMs count parts from two production lines, calculating totals or differences to monitor efficiency and balance workloads. - Event Counting:
In logistics, digital panel meters totalize pulses from dual counters (e.g., package sensors), tracking items processed or comparing conveyor outputs. - Maintenance Scheduling:
In machinery, DPMs totalize operational cycles from two sensors, enabling predictive maintenance based on cumulative usage.
Where Are Digital Panel Meters for Dual-Channel Pulse Totalizer Used?
Digital panel meters (DPMs) are essential in industries requiring precise totalization of pulse inputs from dual channels. With support for various pulse signal types and a compact 1/8 DIN design, these meters provide reliable solutions. Below are detailed use cases across key sectors:
- Water and Wastewater Treatment:
In treatment plants, digital panel meters totalize pulses from dual flow meters to track water or chemical volumes, ensuring accurate dosing and regulatory compliance. They may also calculate differences to monitor system efficiency. - Industrial Manufacturing:
In production lines, DPMs count pulses from dual sensors (e.g., part counters on two conveyors), totalizing production output or comparing lines for quality control. For example, in a packaging plant, they track and balance output from parallel machines. - Oil and Gas Industry:
In pipelines, digital panel meters totalize pulses from dual flow meters, calculating total volumes or differences to monitor flow rates and detect leaks. - Food and Beverage Processing:
In bottling or filling lines, DPMs totalize pulses from dual flow meters to track ingredient volumes, ensuring precise batching and consistent product quality. - Chemical Manufacturing:
In chemical processing, digital panel meters totalize pulses from dual sensors to monitor material inputs, supporting accurate mixing and batch control. - Logistics and Warehousing:
In distribution centers, DPMs count pulses from dual package sensors, totalizing items processed or comparing conveyor outputs to optimize throughput. - Energy and Power Generation:
In power plants, digital panel meters totalize pulses from dual sensors monitoring turbine cycles, calculating totals or differences to assess performance and schedule maintenance.
Benefits of Using Digital Panel Meters for Dual-Channel Pulse Totalization
Digital panel meters offer numerous advantages for dual-channel pulse totalizer applications:
- Dual-Channel Capability: Simultaneous processing of two pulse inputs enables advanced totalization and comparison functions.
- High Precision: Accurate counters ensure reliable totalization, even for high-speed or low-frequency pulses.
- Compact Design: The 1/8 DIN size fits seamlessly into control panels, ideal for space-constrained setups.
- Versatility: Support for multiple pulse signal types and programmable settings accommodates diverse applications.
- System Integration: Communication interfaces enable connection to automation systems, enhancing data logging and process control.
- Durability: Built to withstand industrial conditions, including dust, moisture, and temperature fluctuations.
Choosing the Right Digital Panel Meter for Dual-Channel Pulse Totalization
When selecting a digital panel meter for dual-channel pulse totalizer applications, consider these factors:
- Signal Compatibility: Ensure the meter supports the pulse signal types (e.g., TTL, NPN, PNP) and frequency ranges for your application.
- Accuracy Specifications: Verify the meter’s accuracy and resolution for totalization and rate measurements.
- Signal Conditioning: Check for debouncing or filtering features to handle noisy or irregular pulses.
- Environmental Durability: Choose a meter with appropriate IP ratings for dust, water, or temperature resistance in industrial settings.
- Output Requirements: Determine if you need analog outputs, relays, or digital communication for integration with other systems.
- Display and Usability: Opt for a display that’s readable in your environment and controls that are easy to configure.
Conclusion
Digital panel meters for dual-channel pulse input totalizer applications, particularly 1/8 DIN models, are vital for precise counting and monitoring in industries like manufacturing, water treatment, and oil and gas. Their dual-channel capabilities, high accuracy, and compact design make them ideal for complex totalization tasks. By delivering reliable count data and integrating seamlessly with control systems, digital panel meters enhance process efficiency, ensure quality, and support system performance across diverse pulse-based applications.
Less Information.