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

5-Digit Digital Panel Meters
DC Volts & mV Voltmeter DC Amps & mA Ammeter True AC RMS Volts & mV True AC RMS Amps & mA Process Signal (e.g., 4-20mA) Load Cell, 4 or 6-wire Strain Gauge	Potentiometer Follower Thermocouple Meter RTD temperature Meter Ohms resistance Ohmmeter Weight / scale meter Custom curve linearization PC-based datalogging

 

6-Digit Programmable Counters
Frequency, Rate, Period Stopwatch Meter Time Interval Meter Phase Angle Meter Power Factor Meter Duty Cycle Meter Rate or Total from Analog Signals	Quadrature Position & Rate Up / Down Totalizer Pulse Input Batch Control Analog Input Batch Control Functions A+B, A-B, AxB, A/B, A/B-1 Serial Input Meter PC-based datalogging

Standard Features
Simple setup via pushbuttons orsetup via computer. Multifunction, high-resolution instrument at single-function price. High read rate for fast control response and true Peak or valley display. Adaptive filter eliminates noise, yet responds rapidly to changes in signal level. Auto-tare for weighing applications. Isolated 5, 10 and 24 Vdc excitation eliminates need for external supply. Universal 85-264 Vac power for global use.	1/8 DIN case for easy replacement of existing meters. Plug-in screw terminals for power and signal included. Sealed to NEMA-4X (IP-65) when panel mounted for high-pressure wash-down. Designed to meet international safety standards. Certified for safety per UL 3101-1 and CAN/CSA-C22.2 No 1010.1-92. Certified for EM compatibility per EN 61010-1:1993 (CE Mark).
Options (isolated)
2 or 4 output relays: 8A contact relays, or 130 mA AC/DC opto-isolated solid state relays for alarm or control. Analog output: User selectable 4-20 mA, 0-20 mA, 0-10V or -10 to +10V, 16-bits, isolated, linearized and scaled to display. Serial I/O: Ethernet, Ethernet-to-RS485 converter, RS232, multipoint RS485, Modbus RS485, USB, or USB-to-RS485 converter. Modbus or Laurel ASCII protocol.	Low voltage power: for 12-32 Vac or 10-48 Vdc for operation from battery power. Datalogging software: Up to 31 instruments on one data line to a PC, plus 33 virtual meters to display arithmetic combinations of meter readings.

The design of the Laureate™ Series is modular for maximum flexibility at minimum cost. 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 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 fully-loaded Laureate.

The main module (with computer and display boards) defines the Laureate series (DPM, weight meter, counter, or remote display), version (standard or extended), and LED display color (red or green). The number of digits is 5 for DPMs or 6 for counters, weight meters and remote displays. LED digits are 14.2 mm (0.56") high.

The same standard switching power supply board handles inputs of 85-264 Vac for worldwide AC use, plus 90-300 Vdc (high voltage DC operation not UL approved). An optional low voltage power supply board handles 12-32 Vac or 10-48 Vdc, allowing the meter to be powered low-voltage AC or by batteries. Isolated 5, 10 or 24 Vdc transducer excitation output is standard with either supply.

• Normal Voltage: 85-264 Vac
• Low Voltage: 12-32 Vac or 10-48 Vdc

Four input boards are used for DPMs:

• DC (volts, amps, mV, mA, process such as 4-20 mA, strain, pot follower).
• AC True RMS (AC volts, mV, amps, mA).
• Thermocouple (Types J, K, T, E, N, R, S)
• RTD (Pt 100, Ni 120, Cu 10) and Ohms (20 Ω to 200 kΩ ranges)
• Load cell (load cells, scale meter, strain gauges, microvolts).

Three input boards are used for counters: dual-channel counter, voltage-to-frequency, and quadrature. Click on each link below to be linked to the appropriate web page:

• AC frequency, period, rate
  (includes square root extraction and custom curve linearization)
• Digital stopwatch
• Time interval meter
• Power factor & phase angle meter
• Duty cycle meter
• Up / down totalizer
• Ratio, draw, channels A+B, A-B, AxB, A/B, A/B-1
  (arithmetic operation on dual input channels A & B)
• Pulse input batch controller
• Voltage-to-Frequency Converter
  (rate, rate and total, square root, analog totalizer, analog batch control, 1/rate (time), custom curves)
• Quadrature Meter / Controller
  (position or rate from quadrature encoders with low-level differential or single ended logic level outputs)

Two isolated setpoint controller options are available to add control and alarm capability to DPMs, counters, timers and remote displays:

• Two or four 8A contact relays
• Two or four isolated AC/DC solid state relays

A single-channel isolated analog output board capable of 4-20 mA, 0-20 mA, 0-10V or bipolar ±10V output is available for DPMs, counters timers and remote displays. A dual-channel isolated analog output board capable of 4-20 mA, 0-20 mA or 0-10V or output is available for counters timers and remote displays. These board effectively turn their host meter into an isolated transmitter. The output is scaled and linearized to the display. Resolution is 16 bits.

• Single-channel analog output, 4-20 mA, 0-20 mA, 0-10V, -10 to +10V
• Dual-channel analog output, 4-20 mA, 0-20 mA, 0-10V

Isolated communication interface boards allow the Laureate to communicate with a computer or PLC. The two serial boards allow the Laureate to drive a remote display, or to serve as a remote display.

• Ethernet (RJ45 connector for Ethernet cable)
• Ethernet-to-RS485 converter (RJ45 connector for Ethernet cable plus RJ11 connector to RS485 bus)
• RS232 (RJ11 connector)
• RS485 (Dual RJ11 connectors for daily chaining)
• Modbus RS485 (Dual RJ45 connectors for daisy chaining)
• USB 2.0 (USB Type B connector for connection to PC)
• USB-to-RS485 converter (USB Type-B connector to PC & RJ11 connector to RS485 bus)

All Laureates are housed in a compact and rugged 1/8 DIN case which fits in a standard 45 x 92 mm panel cutout and requires only 102 mm (4.0") behind the panel (plus connectors). The Laureate case is sealed to NEMA-4X (IP-65) requirements from the front when panel mounted to allow high-pressure wash-down. All power and signal connections are via UL / IEC / CSA rated screw-clamp terminals, which are standard. The RS232 and RS485 options are connected via RJ-11 phone jacks.

All Laureate meters and counters are shipped fully configured, calibrated, and ready to run. All ranges of Laureate DC, AC and temperature meters are calibrated at the factory, with calibration factors stored in EEPROM. This allows different ranges to be selected via plug-in jumpers, with no need to recalibrate the meter for each new range.

Setup can be from the front panel or by using powerful and easy-to-use Laureate Setup & Calibration Software, which can be downloaded at no charge from our Software Download Page. It can simplify setup whether the PC is connected to the instrument or not. Absolute calibration of Laureate panel meters requires temporary connection to an external calibrator and to a PC running Laureate Setup & Calibration Software. System-level scale and offset calibration can also be from the front panel to produce specified readings from known signals, such as 4-20 mA = 0.00% to 100.00%.

Datalogging Software turns a PC connected to up to 31 Laureate instruments into a powerful, low-cost datalogging system. The Laureates can be any mix of digital panel meters and counters, excluding only remote displays. Data can be displayed on a computer screen in the form of up to 64 simulated panel meters, which can include virtual meters that show an arithmetic combination of meter readings or totalized readings, such as volume from flow rate. Data is can be captured on disk in the form of comma-delimited ASCII files for analysis and graphic by an external program such as MS Excel.