Laurel Panel Meters, Counters, Timers & Displays by Application

DC Voltage & Current

• DC voltmeter ranges from ±200.00 mV to ±600.0 V.
• DC ammeter ranges from ±2.0000 mA to ±5.000 A.
• L40 universal meter ranges from ±60.0 mV to ±400V, ±20.00 mA to 5.00 A.

AC Power Line Monitoring

• True RMS AC voltmeter ranges from 200.00 mV to 600.0 V.
• True RMS AC ammeter ranges from 2.0000 mA to 5.000 A.
• L40 low-cost universal meter ranges from 60.0 mV to 400V, 20.00 mA to 5.00 A.
• AC line frequency to 0.0001 Hz resolution in a few line cycles.
• Phase angle to 0.01° accuracy from 0 to 100 Hz, 0.1° accuracy from 0 to 1 kHz.
• Power factor to three decimal places with sinusoidal inputs.
• Large-digit frequency displays with 2.2" (57 mm) to 8" (200 mm) high digits

Process Signal Display & Control

• Laureate process meter for analog signals such as 0-1 mA, 4-20 mA, 0-10 V.
• L40 low-cost universal meter for 4-20 mA & 0-10 Vdc signals.
• Process totalizer & meter for 0-1 mA, 4-20 mA, 0-10V analog signals.
• Strain gauge & potentiometer follower meter for signals which are a changing resistance.
• Pulse input rate meter and totalizer for pulse signals from 0.005 Hz to 1 MHz.
• Large digit displays.  Process meters, pulse input rate meters and pulse input totalizers with digit heights from 2.2" (57 mm) to 7.9" (200 mm).

Flow Rate, Flow Total, Batch Control

• Dual-channel Pulse input rate meter and totalizer.  Display flow rate or flow total (volume), add or subtract two flows for net flow or net volume, or compute the ratio of two flows to control mixing operations.
• Analog input rate meter and totalizer.  Accept 0-1 mA, 4-20 mA or 0-10 V analog signal from a linear or differential pressure flow transducer to display flow rate or flow total (volume).
• Pulse input batch controller.  Control repeated fill operations usingֲ the pulse signal from a turbine flowmeter.
• Analog input batch controller.  Control repeated fill operations usingֲ the 0-1 mA, 4-20 mA or 0-10 V analog signal from a linear or differential pressure flow transducer.
• Large digit displays.  Analog input process meters, pulse input rate meters, and pulse input totalizers with 2.2" (57 mm) to 7.9" (200 mm) high digits.

Weight, Force, Stress, Tensile Strength

• Load cell meter.  Powers up to four 350-ohm bridges in parallel in 4 or 6-wire connection. Five-digit display, sensitivity to ±20 mV full scale.
• Strain meter.  Powers up to four 350-ohm bridges in parallel in 4-wire connection. Five-digit display, sensitivity to ±200 mV full scale.
• Scale / weight meter.  Special firmware for weighing applications. Features include display to 999,990, auto-zero, auto-tare or manual tare, and display toggle between gross or net weight.
• Large digit displays.  For strain gauges and load cells. Digit heights 2.2" (57 mm) to 7.9" (200 mm).

Frequency, Rate, RPM, Speed

• Dual-channel frequency meter.  Display frequency in Hz to six-figure accuracy from 0.05 Hz to 1 MHz.
• Dual-channel pulse input rate meter.  Display rate or totalized rate, add or subtracts two rates or totals, or computes the ratio of two rates or totals.
• Analog input rate meter.  Display rate in engineering units from a 0-1 mA, 4-20 mA or 0-10 V analog signal.
• Quadrature meter. Display speed or position based on quadrature signals.
• Potentiometer follower meter. Display speed or position based on the changing resistance of a linear displacement transducer.
• Large digit displays.  Available for pulse input or process signals. Digit heights 2.2" (57 mm) to 7.9" (200 mm).

Temperature Measurement & Control

• Thermocouple Temperature Meter. High accuracy for 7 thermocouple types (J, K, T, E, N, S, R), each in one range. User-selectable thermocouple type, °C or °F, and 1° or 0° resolution. Wide range of options for communication and temperature control. Shipped ready to run.
• RTD Temperature Meter. Exceptional accuracy for Pt100 100-ohm platinum RTDs (DIN or ANSI alpha), Ni120 nickel and Cu10 copper. User selectable RTD type, unit of measure (°F or °C) resolution (1°, 0.1° or 0.01°), and 2, 3 or 4-wire hookup to eliminate lead resistance effects. Wide range of options for communication and temperature control. Shipped ready to run.
• L40 low-cost universal meter. Same meter for 10 thermcouple types (J, K, T, E, N, S, R, L, C, B), 4 RTD types (Pt100, Pt500, Pt1000, Ni100, Ni200, Ni1000), NTC thermistors (R25 from 100Ω to 100 kΩ, beta from 2000 to 5000), and PTC thermistors (KTY 121, LTY 210, KTY 220).

Resistance Measurement

• Ohmmeter with five jumper selectable resistance ranges from 20Ω to 200 KΩ. Also available with a fixed 2 MΩ range. Accuracy is an exceptional ±0.01% of full scale ± 2 counts. Resolution is one part in 20,000. In the 20Ω range, resolution is 1 mΩ, making the meter suitable for contact resistance and conductance measurements. Custom curve linearization makes this meter ideal for use with thermistors and other sensors whose output is a chaning resistance.

Pulse Counting, Digital or Analog Totalizing

• Dual-channel frequency meter.  Display frequency in Hz to six-figure accuracy from 0.05 Hz to 1 MHz.
• Dual-channel pulse input totalizer.  Display totals (such as flow volume) or flow rate, add or subtracts two totals or rates, or compute the ratio of two totals or rates.
• Process signal totalizer.  Display totals in engineering units from a 0-1 mA, 4-20 mA or 0-10 V analog signal.
• Quadrature meter. Display speed or position based on quadrature signals.
• Large digit displays.  Available for pulse input or process signals. Digit heights from 2.2" (57 mm) to 7.9" (200 mm).

Timing from Microseconds to Hours

• Stopwatch meter. For single events from less than 1 µs to 999,999 hours. Timing resolution to 0.2 µs.
• Time interval meter.  For periodic events from 1 µs to 199.99 s. Timing resolution to 0.2 µs.
• Duty cycle meter.  Displays ON or OFF period as a percentage of total period.
• Large digit timers and clocks.  Display in MM:SS, HH:MM, or HH:MM:SS.Digit with digit heights from 2.2" (57 mm) to 7.9" (200 mm).

M-35 Microminiature Digital Process Meter