Laurel Electronics LLC Digital Panel Meter for Process & Ratiometric L20000P

Description
Intertek #4006497 RoHS 3 Compliant CE Certificate Features Reads process signals from ±200 mV to ±600V or ±2 mA to ±5A full scale Accuracy ±0.01% of reading ± 2 counts Absolute and ratiometric mode for bridges and potentiometers Error less than 0.01% of full scale for absolute ranges, less than 0.01% of reading for ratiometric measurements All input ranges are user selectable and factory calibrated Up to 60 conversions per second, Ideal for peak or valley capture Digital span adjust from 0 to ±99,999, zero adjust from -99,999 to +99,999 Front panel scalable to ±99,999 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 allows up to 180 data points for custom curve linearization and a rate derived from consecutive readings Laureate™ 1/8 DIN Digital Panel Meter for digital process are a cost-effective solution for process signals such as 4-20 mA, 0-10V, or 0-5V. Full-scale voltage input ranges from ±200 mV to ±600V and current ranges from ±2 mA to ±5 A are jumper selectable. All ranges are precalibrated at the factory, so that recalibration is not needed when changing ranges or signal conditioners. The 200.00 mV and 2.000 V ranges provide a high input impedance of 1 Gohm to minimize the load on the voltage signal. The meter can be set to absolute and ratiometric (or potentiometer follower) mode by making a software selection. In this mode, the meter tracks a ratio of the applied excitation voltage and is unaffected by changes in the excitation voltage. Ratiometric measurements provide an exceptional accuracy of 0.01% of reading ± 2 counts. This capability is used with the meter's 5V or 10V excitation output for load cells and Wheatstone bridges, and with the meter's 5V excitation output for potentiometers which track wiper position. 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. The optional extended Laureate computer board enhances Laureate Digital Panel Meters by displaying rates derived from successive readings and enabling highly accurate custom curve linearization. For example, it can calculate liquid volume or flow rate in a horizontal cylindrical tank using levels from a 4-20 mA transmitter. Setup is straightforward: users input up to 180 data points into a spreadsheet or text file, and the computer calculates spline-fit segments, which are then downloaded to the meter for precise operation. 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. Scaling is from -99,999 to +99,999 (five full digits) with any decimal point to display readings in engineering units, such as PSI. Three scaling methods are user selectable: scale and offset, two-point method, and system-level calibration using actual transducer signals. High read rate of up to 50 or 60 conversions per second, the Laureate™ Digital Panel Meter uses Concurrent Slope (US Pat. 5,262,780) analog-to-digital conversion to integrate signals over a full power line cycle (50 Hz or 60 Hz). This read rate enables peak and valley capture, real-time computer interfacing, and control applications. Peak and valley values are automatically captured and can be viewed using Laurel’s free Instrument Setup Software (compatible with Windows PCs) or transmitted as serial data. 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. Two tare functions: auto-tare and manual tare. In auto-tare, an input line is grounded by an external pushbutton. In manual tare, the tare value can be entered manually via a control input pushbutton or using Laurel's free Instrument Setup Software. 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.
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Description
Intertek #4006497 RoHS 3 Compliant CE Certificate Features Reads process signals from ±200 mV to ±600V or ±2 mA to ±5A full scale Accuracy ±0.01% of reading ± 2 counts Absolute and ratiometric mode for bridges and potentiometers Error less than 0.01% of full scale for absolute ranges, less than 0.01% of reading for ratiometric measurements All input ranges are user selectable and factory calibrated Up to 60 conversions per second, Ideal for peak or valley capture Digital span adjust from 0 to ±99,999, zero adjust from -99,999 to +99,999 Front panel scalable to ±99,999 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 allows up to 180 data points for custom curve linearization and a rate derived from consecutive readings Laureate™ 1/8 DIN Digital Panel Meter for digital process are a cost-effective solution for process signals such as 4-20 mA, 0-10V, or 0-5V. Full-scale voltage input ranges from ±200 mV to ±600V and current ranges from ±2 mA to ±5 A are jumper selectable. All ranges are precalibrated at the factory, so that recalibration is not needed when changing ranges or signal conditioners. The 200.00 mV and 2.000 V ranges provide a high input impedance of 1 Gohm to minimize the load on the voltage signal. The meter can be set to absolute and ratiometric (or potentiometer follower) mode by making a software selection. In this mode, the meter tracks a ratio of the applied excitation voltage and is unaffected by changes in the excitation voltage. Ratiometric measurements provide an exceptional accuracy of 0.01% of reading ± 2 counts. This capability is used with the meter's 5V or 10V excitation output for load cells and Wheatstone bridges, and with the meter's 5V excitation output for potentiometers which track wiper position. 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. The optional extended Laureate computer board enhances Laureate Digital Panel Meters by displaying rates derived from successive readings and enabling highly accurate custom curve linearization. For example, it can calculate liquid volume or flow rate in a horizontal cylindrical tank using levels from a 4-20 mA transmitter. Setup is straightforward: users input up to 180 data points into a spreadsheet or text file, and the computer calculates spline-fit segments, which are then downloaded to the meter for precise operation. 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. Scaling is from -99,999 to +99,999 (five full digits) with any decimal point to display readings in engineering units, such as PSI. Three scaling methods are user selectable: scale and offset, two-point method, and system-level calibration using actual transducer signals. High read rate of up to 50 or 60 conversions per second, the Laureate™ Digital Panel Meter uses Concurrent Slope (US Pat. 5,262,780) analog-to-digital conversion to integrate signals over a full power line cycle (50 Hz or 60 Hz). This read rate enables peak and valley capture, real-time computer interfacing, and control applications. Peak and valley values are automatically captured and can be viewed using Laurel’s free Instrument Setup Software (compatible with Windows PCs) or transmitted as serial data. 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. Two tare functions: auto-tare and manual tare. In auto-tare, an input line is grounded by an external pushbutton. In manual tare, the tare value can be entered manually via a control input pushbutton or using Laurel's free Instrument Setup Software. 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.
Request a Quote

Suppliers

Company
Product
Description
Supplier Links
Digital Panel Meter for Process & Ratiometric - L20000P - Laurel Electronics LLC
Costa Mesa, CA, United States
Digital Panel Meter for Process & Ratiometric
L20000P
Digital Panel Meter for Process & Ratiometric L20000P
Intertek #4006497 RoHS 3 Compliant CE Certificate Features Reads process signals from ±200 mV to ±600V or ±2 mA to ±5A full scale Accuracy ±0.01% of reading ± 2 counts Absolute and ratiometric mode for bridges and potentiometers Error less than 0.01% of full scale for absolute ranges, less than 0.01% of reading for ratiometric measurements All input ranges are user selectable and factory calibrated Up to 60 conversions per second, Ideal for peak or valley capture Digital span adjust from 0 to ±99,999, zero adjust from -99,999 to +99,999 Front panel scalable to ±99,999 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 allows up to 180 data points for custom curve linearization and a rate derived from consecutive readings Laureate™ 1/8 DIN Digital Panel Meter for digital process are a cost-effective solution for process signals such as 4-20 mA, 0-10V, or 0-5V. Full-scale voltage input ranges from ±200 mV to ±600V and current ranges from ±2 mA to ±5 A are jumper selectable. All ranges are precalibrated at the factory, so that recalibration is not needed when changing ranges or signal conditioners. The 200.00 mV and 2.000 V ranges provide a high input impedance of 1 Gohm to minimize the load on the voltage signal. The meter can be set to absolute and ratiometric (or potentiometer follower) mode by making a software selection. In this mode, the meter tracks a ratio of the applied excitation voltage and is unaffected by changes in the excitation voltage. Ratiometric measurements provide an exceptional accuracy of 0.01% of reading ± 2 counts. This capability is used with the meter's 5V or 10V excitation output for load cells and Wheatstone bridges, and with the meter's 5V excitation output for potentiometers which track wiper position. 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. The optional extended Laureate computer board enhances Laureate Digital Panel Meters by displaying rates derived from successive readings and enabling highly accurate custom curve linearization. For example, it can calculate liquid volume or flow rate in a horizontal cylindrical tank using levels from a 4-20 mA transmitter. Setup is straightforward: users input up to 180 data points into a spreadsheet or text file, and the computer calculates spline-fit segments, which are then downloaded to the meter for precise operation. 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. Scaling is from -99,999 to +99,999 (five full digits) with any decimal point to display readings in engineering units, such as PSI. Three scaling methods are user selectable: scale and offset, two-point method, and system-level calibration using actual transducer signals. High read rate of up to 50 or 60 conversions per second, the Laureate™ Digital Panel Meter uses Concurrent Slope (US Pat. 5,262,780) analog-to-digital conversion to integrate signals over a full power line cycle (50 Hz or 60 Hz). This read rate enables peak and valley capture, real-time computer interfacing, and control applications. Peak and valley values are automatically captured and can be viewed using Laurel’s free Instrument Setup Software (compatible with Windows PCs) or transmitted as serial data. 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. Two tare functions: auto-tare and manual tare. In auto-tare, an input line is grounded by an external pushbutton. In manual tare, the tare value can be entered manually via a control input pushbutton or using Laurel's free Instrument Setup Software. 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.

Intertek #4006497 RoHS 3 Compliant CE Certificate

Features

  • Reads process signals from ±200 mV to ±600V or ±2 mA to ±5A full scale
  • Accuracy ±0.01% of reading ± 2 counts
  • Absolute and ratiometric mode for bridges and potentiometers
  • Error less than 0.01% of full scale for absolute ranges, less than 0.01% of reading for ratiometric measurements
  • All input ranges are user selectable and factory calibrated
  • Up to 60 conversions per second, Ideal for peak or valley capture
  • Digital span adjust from 0 to ±99,999, zero adjust from -99,999 to +99,999
  • Front panel scalable to ±99,999 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 allows up to 180 data points for custom curve linearization
    and a rate derived from consecutive readings

Laureate™ 1/8 DIN Digital Panel Meter for digital process

are a cost-effective solution for process signals such as 4-20 mA, 0-10V, or 0-5V. Full-scale voltage input ranges from ±200 mV to ±600V and current ranges from ±2 mA to ±5 A are jumper selectable. All ranges are precalibrated at the factory, so that recalibration is not needed when changing ranges or signal conditioners. The 200.00 mV and 2.000 V ranges provide a high input impedance of 1 Gohm to minimize the load on the voltage signal.

The meter can be set to absolute and ratiometric (or potentiometer follower) mode by making a software selection. In this mode, the meter tracks a ratio of the applied excitation voltage and is unaffected by changes in the excitation voltage. Ratiometric measurements provide an exceptional accuracy of 0.01% of reading ± 2 counts. This capability is used with the meter's 5V or 10V excitation output for load cells and Wheatstone bridges, and with the meter's 5V excitation output for potentiometers which track wiper position.

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.

The optional extended Laureate computer board enhances Laureate Digital Panel Meters by displaying rates derived from successive readings and enabling highly accurate custom curve linearization. For example, it can calculate liquid volume or flow rate in a horizontal cylindrical tank using levels from a 4-20 mA transmitter. Setup is straightforward: users input up to 180 data points into a spreadsheet or text file, and the computer calculates spline-fit segments, which are then downloaded to the meter for precise operation.

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.

Scaling is from -99,999 to +99,999 (five full digits) with any decimal point to display readings in engineering units, such as PSI. Three scaling methods are user selectable: scale and offset, two-point method, and system-level calibration using actual transducer signals.

High read rate of up to 50 or 60 conversions per second, the Laureate™ Digital Panel Meter uses Concurrent Slope (US Pat. 5,262,780) analog-to-digital conversion to integrate signals over a full power line cycle (50 Hz or 60 Hz). This read rate enables peak and valley capture, real-time computer interfacing, and control applications. Peak and valley values are automatically captured and can be viewed using Laurel’s free Instrument Setup Software (compatible with Windows PCs) or transmitted as serial data.

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.

Two tare functions: auto-tare and manual tare. In auto-tare, an input line is grounded by an external pushbutton. In manual tare, the tare value can be entered manually via a control input pushbutton or using Laurel's free Instrument Setup Software.

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.

Supplier's Site

Technical Specifications

  Laurel Electronics LLC
Product Category Digital Panel Meters
Product Number L20000P
Product Name Digital Panel Meter for Process & Ratiometric
Outputs Analog
Display Type Numeric
Character Size 0.37 (9.4mm) to 0.56 (14.2mm)
Number Digits 5.0
Display Technology LED
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Number Digits 6.0
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Digital Panel Meter for 6-Digit Analog Input Totalizer & Process Meter - L60000VF1 - Laurel Electronics LLC
Specs
Outputs Analog
Features Totalizer
Display Type Numeric
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