Laureate™ DC Voltage & Current Panel Meters
High accuracy, high read rate, control outputs



  • 0.2, 2, 20, 200, 300V & 600V ranges.
  • 2, 20, 200 mA and 5A ranges.
  • All ranges factory calibrated.
  • 99.99% full scale accuracy.
  • 4 1/2 digit resolution to ±19,999 for direct readout in mV, V, mA or A.
  • 1 Gohm input impedance on 200 mV and 2 V scales.
  • Field scalable from front panel to ±99,999 for use with external current shunts.
  • Up to 60 conversions per second.
  • Peak value display.
  • Selectable adaptive digital filter.
  • Selectable fixed zero or active least significant digit.
  • 5, 10 or 24 Vdc excitation supply.
  • External controls for reset, meter hold and decimal points.
  • NEMA 4X, 1/8 DIN case
  • Dual relay option
  • Analog output option
  • Serial communication options
  • Low voltage AC & DC power



Laureate™ DC voltage and current panel meters with a DC signal conditioner board combine high accuracy with high read rate and a wide range of isolated output options for computer interface and control. Accuracy is 99.99% of full scale ±1 count.

Used as a direct-reading DC voltmeter, the Laureate provides a full-scale readout of ±20,000 counts and six full-scale voltage ranges from 200.00 mV with 10 mV resolution to 600.0 V with 100 mV resolution. The 200.00 mV and 2.000 V ranges provide a high input impedance of 1 Gohm so as to minimize the load on the voltage signal. The maximum voltage which can be applied on the 20, 200 and 300 Vdc ranges is 600 Vac.

Used as a DC ammeter, the Laureate provides a full-scale readout of ±20,000 counts and four full-scale direct-reading current ranges from 2.0000 mA with 0.1 mA resolution to 5.000 A with 1 mA resolution. The 5.000 A range measures the IR drop across a built-in 10 mW current shunt.

Use with External Current Shunts

Digital ammeter used with external current shunt

The Laureate can be used with external current shunts, which typically produce 50 mV or 100 mV at their rated maximum current. Scaling from millivolts to amperes for a specific shunt value is easily accomplished from the front panel of the meter. The scalable readout is five full digits up to ±99,999 counts. Since the voltage signal from a current shunt can be noisy, the Laureate provides a selectable, adaptive moving-average digital filter, as explained below.

DC signal conditioner board for Laurel digital panel metersAll Ranges Precalibrated

All voltage and current ranges are calibrated at the factory, with calibration factors for each range stored in an internal EEPROM. This allows ranges to be changed without recalibrating the meter.

High Read Rate and Peak Capture

All Laureate voltmeters use Concurrent Slope (US Pat 5,262,780) analog-to-digital conversion, which allows up to 60 or 50 conversions per second while integrating the signal over a full power cycle. High read rate is ideal for peak capture, real-time computer interface, and control.

The peak value of the input signal is automatically captured and may be displayed via a front panel pushbutton command or a control signal at the rear connector since the last meter reset. Other controls at the rear connector include meter hold, meter reset, and decimal point selection.

Selectable Signal Filtering

The displayed readings and the data outputs can be separately selected to be either unfiltered or filtered.

  • An unfiltered selection updates after each conversion for fastest response.
  • A batch average filter selection averages each 16 conversions for an update every 1/4 sec.
  • An adaptive moving average filter selection provides a choice of 8 time constants from 80 ms to 9.6 s. 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. Another choice is Auto, which provides an automatic time constant selection based on the signal noise characteristics.

Isolated Excitation Supply

5, 10 and 24 Vdc isolated excitation outputs are standard to power external devices, such as transducers or transmitters. In many cases, these outputs can eliminate the need for an external supply.

Interface Options

Plug-in isolated analog output, dual setpoint controller, or RS-232/485 communications boards can upgrade the Laureate from a simple monitor to system interface and control.

Built-in Flexibility & Safety

Laureates may be powered from 95-240 Vac ±10% or 90-300 , or optionally from 12-30 Vac or 10-48 Vdc. They are available with red or green LEDs. They are housed in a 1/8 DIN case that meets NEMA 4X (IP65) specifications from the front when panel mounted. Any setup functions and front panel keys may be locked out for simplified usage and security.


DC Voltage

DC Voltage Range Resolution Input
Error at 25°C
±2 counts
200.00 mV
2.000 V
20.000 V
200.00 V
600.0 V
300.0 V
10 µV
100 µV
1 mV
10 mV
100 mV
100 mV
1 G
1 G
10 M
10 M
10 M
10 M
0.01% FS
0.01% FS
0.01% FS
0.01% FS
0.02% FS
0.02% FS

DC Current

DC Current Range Resolution Input
Error at 25°C
±2 counts
2.0000 mA
20.000 mA
200.00 mA
5.000 A
0.1 µA
1.0 µA
10 µA
1.0 mA
0.01% FS
0.01% FS
0.01% FS
0.04% FS

DC Voltage & Current

5 LED digits, 7-segment, 14.2 mm (.56"), red or green.
-99999 to 99999 or -99990 to 99990 (count by 10 with rounding)
Minus sign, 2 red LED lamps
A-to-D Conversion
A-to-D Rate
Output Update
Display Update
Concurrent Slope™ (Pat 5,262,780)
60/s at 60 Hz, 50/s at 50 Hz
56/s at 60 Hz, 47/s at 50 Hz
3.5/s at 60 Hz, 3/s at 50 Hz
Span Tempco
Zero Tempco
0.003% of reading/°C
0.1 count/°C
Noise Rejection
CMR, DC to 60 Hz
NMR at 50/60 Hz
130 dB
90 dB with min filtering
Maximum Signal
Max applied
Over-current protection
600 Vac for 20, 200 and 300 V ranges, 125 Vac for other
25x for 2 mA, 8x for 20 mA, 2.5x for 200 mA, 1x for 5 A
Voltage, standard
Voltage, optional
Power Isolation
95-240 Vac ±10% or 90-300 Vdc
12-30 Vac or 10-48 Vdc
DC or 47-63 Hz
250V rms working, 2.3 kV rms per 1 min test
Excitation Output
5 Vdc
10 Vdc
24 Vdc
Output Isolation
5 Vdc ±5%, 100 mA
10 Vdc ±5%, 120 mA
24 Vdc ±5%, 50 mA
50 Vdc to meter ground
Analog Output (optional)
Output levels
0-10V, 0-20 mA, 4-20 mA (jumper selectable)
2 mA at 10V (5 kOhm load), 12V at 20 mA (0-60 ohm load)
Zero and full scale adjustable from -99999 to +99999
12 bits (0.025% of full scale)
Safety-rated to 250V rms working, 2.3 kV rms per 1 min test
Dual Contact Relay Outputs (optional)
Relay Type
Load Rating
Form C
8A at 250 Vac or 24 Vdc
250V rms working, 2.3 kV rms per 1 min test
Dual Solid State Relay Outputs (optional)
Relay Type
Load Rating
SPST, normally open, Form A
120 mA at 130 Vac or 170 Vdc, 28 ohms series resistance.
250V rms working, 2.3 kV rms per 1 min test
Serial Data I/O (optional)
Board Selections
Data Rates
Digital Addresses
RS232, RS485, Modbus RS485
Modbus RTU, Modbus ASCII, simpler Laurel ASCII
300 to 19200 bps
247 (Modbus), 31 (Laurel ASCII),
250V rms working, 2.3 kV rms per 1 min test
Signal Connections
Signal connections, Laure DC digital voltmeter and ammeter
Operating Temp.
Storage Temp.
Relative Humidity
0°C to 60°C
-40°C to 85°C
95% at 40°C, non-condensing
NEMA-4X (IP-65) when panel mounted

Ordering Guide
Laureate™ DC Voltage & Current Panel Meters

Create a model number in this format: L10010DCV1. This example calls out a Laureate panel meter with a Standard Main Board with green LEDs, 95-240 Vac ±10% & 90-300 Vdc power, no setpoint output, 0-20 mA & 0-10 V analog outputs, no digital interface, and a DC signal conditioner set for ±200.00 mV. Includes plug-in screw terminals.
L    Digital Panel Meter.
Standard Main Board, Green LEDs.
Standard Main Board, Red LEDs.
Power Isolated 95-240 Vac ±10% & 90-300 Vdc
Isolated 12-30 Vac & 10-48 Vdc.
Dual 8A Contact Relays.
Isolated Dual Solid State Relays.
Isolated 0-20 mA & 0-10 V.
Isolated RS-232.
Isolated RS-485.
Isolated Modbus RS-485.
DC Volts
DCV1  ±200.00 mV.
DCV2  ±2.0000 V.
DCV3  ±20.000 V.
DCV4  ±200.00 V.
DCV5  ±600.0 V.
DCV6  ±300.0 V.
DC Amps
DCA1  ±2.0000 mA.
DCA2  ±20.000 mA.
DCA3  ±200.00 mA.
DCA4  ±5.000 A.


Extra bight red LED display
Blank lens without button pads
RJ11-to-DB9 cable
USB-to-DB9 adapter
Clear front panel cover sealed to NEMA 4X / IP65
NEMA-4X wall-mount enclosure with 1/8 DIN cutout
NEMA-4X wall-mount enclosure with 1/8 DIN cutout plus IPC

What are you looking for? | Let us help | 800-523-9194 |
What is your Challenge,
Need Description or Goal?
*First & Last Name:  
*E-Mail & Phone:  
*City & State:  
*Zip Code & Country:  
Much appreciated...what engine,
site, or source referred you?
Searched words or other?