Laureate™ DC Voltage & Current Digital Panel Meters

High accuracy, high read rate, control outputs
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dc-panel-meter
Features
  • ±0.2, ±2, ±20, ±200, ±300V & ±600V DC voltage ranges
  • ±2, ±20, ±200 mA and ±5A DC current ranges
  • 99.99% full scale accuracy ±2 counts
  • Front panel scalable to ±99,999 for use with current shunts
  • Transducer excitation output, 5, 10 or 24 Vdc (isolated)
  • Universal 85-264 Vac / 90-300 Vdc or 10-48 Vdc / 12-32 Vac power
  • Wide choice of options:
    - 2 or 4 relays, mechanical or solid state (isolated)
    - Analog output, 4-20 mA, 0-10V, or -10V to +10V (isolated)
    - Serial data I/O: Ethernet, USB, RS485, RS232 (isolated)
    - Custom curve linearization, rate from consecutive readings
Description
DC-Meter

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 ±2 counts.

  • DC voltmeter operation (selected by jumpers) provides and six full-scale voltage ranges from ±200.00 mV with 10 mV resolution to ±600.0V with 100 mV resolution. The 200.00 mV and 2.0000V ranges provide a high input impedance of 1 Gohm to minimize the load on the voltage signal.
  • DC ammeter operation (selected by jumpers) provides four full-scale 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 milliohm current shunt.

All voltage and current ranges are factory calibrated, with calibration factors for each range stored in an EEPROM on the signal conditioner board. This allows ranges and signal conditioner boards to be changed in the field without recalibrating the meter.

Using a meter with a current shunt External current shunts are fully supported. Scaling from full-scale millivolts, such as 50 mV or 100 mV, to amperes is easily accomplished from the front panel of the meter. The scalable readout is five full digits up to ±99,999 counts.

PowerHigh read rates at up to 60 or 50 conversions per second while integrating the signal over a full power cycle are provided by Concurrent Slope (US Pat 5,262,780) analog-to-digital conversion. High read rates are ideal for peak or valley capture, real-time computer interface, and control. Peak and valley values are automatically captured. These may be displayed via a front panel pushbutton command or a control signal at the rear connector, or be transmitted as serial data.

Digital filtering is selectable for electrically noisy environments, including a batch averaging filter and an adaptive moving average filter which provides a choice of 8 time constants from 80 ms to 9.6 s. When a significant change in signal level occurs, that filter adapts by briefly switching to the shortest time constant to follow the change, then reverts back to the selected time constant. In a selectable Auto filter mode, the filter time constant is automatically selected based on detected signal noise.

Designed for system use. Optional plug-in boards for communications and control include Ethernet and other serial communication boards, dual or quad relay boards, and an isolated 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 red or green LEDs. 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 isolated 5, 10, or 24 Vdc excitation supply can power transducers and eliminate the need for an external power supply. All power and signal connections are via UL / VDE / CSA rated screw clamp plugs.

Specifications Back to top
DC Voltage
DC Voltage Range Resolution Input Resistance Error at 25°C ± 2 cts
±200.00 mV
±2.0000 V
±20.000 V
±200.00 V
±600.0 V *
10 µV
100 µV
1 mV
10 mV
100 mV
1 GΩ
1 GΩ
10 MΩ
10 MΩ
10 MΩ
0.01% FS
0.01% FS
0.01% FS
0.01% FS
0.02% FS
* Range ETL certified to 300.00 V
 
DC Current
DC Current Range Resolution Input Resistance Error at 25°C ± 2 cts
±2.0000 mA
±20.000 mA
±200.00 mA
±5.000 A
0.1 µA
1.0 µA
10 µA
1.0 mA
100 Ω
10 Ω
1 Ω
0.01 Ω
0.01% FS
0.01% FS
0.01% FS
0.04% FS
DC Voltage & Current
Display
Readout
Range
Indicators
5 LED digits, 7-segment, 14.2 mm (.56"), red or green.
-99999 to 99999 or -99990 to 99990 (count by 10)
Minus sign, 2 red LED lamps
A-to-D Conversion
Technique
A-to-D rate
Output update rate
Display update rate
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
Accuracy
Error at 25°C
Span tempco
Zero tempco
0.01% FS ± 2 counts (except 5A range)
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 voltage
Current protection
600 Vac for 20, 200 and 300 V ranges, 125 Vac for other ranges
25x for 2 mA, 8x for 20 mA, 2.5x for 200 mA, 1x for 5 A
Power
Voltage, standard
Voltage, optional
Frequency
Power Isolation
85-264 Vac or 90-300 Vdc (DC operation not ETL certified)
12-32 Vac or 10-48 Vdc
DC or 47-63 Hz
250V rms working, 2.3 kV rms per 1 min test
Excitation Output (standard)
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
Current compliance
Voltage compliance
Scaling
Resolution
Isolation
4-20 mA, 0-20 mA, 0-10V, -10 to +10V (jumper selectable)
2 mA at 10V ( > 5 kΩ load)
12V at 20 mA (< 60Ω load)
Zero and full scale adjustable from -99999 to +99999
16 bits (0.0015% of full scale)
250V rms working, 2.3 kV rms per 1 min test
Relay Outputs (optional)
Relay types

Current tatings

Output common
Isolation
2 Form C contact relays or 4 Form A contact relays (NO)
2 or 4 Form A, AC/DC solid state relays (NO)
8A at 250 Vac or 24 Vdc for contact relays
120 mA at 140 Vac or 180 Vdc for solid state relays
Isolated commons for dual relays or each pair of quad relays
250V rms working, 2.3 kV rms per 1 min test
Serial Data I/O (optional)
Board selections

Protocols
Data rates
Digital addresses
Isolation
Ethernet, Ethernet-to-RS485 server, USB, USB-to-RS485 server,
RS485 (dual RJ11), RS485 Modbus (dual RJ45), RS232.
Modbus RTU, Modbus ASCII, Laurel ASCII protocol
300 to 19200 baud
247 (Modbus), 31 (Laurel ASCII),
250V rms working, 2.3 kV rms per 1 min test
Signal Connections
DC panel meter signal connections
Environmental
Operating temperature
Storage temperature.
Relative humidity
Protection
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 Back to top
Laureate™ DC Voltage & Current Panel Meters
Click on the radio buttons to build a model number with pricing as shown below. Prices are in US dollars and do not include shipping or duty charges (export sales).
Please see our explanations and limitations applicable to pricing and online orders Prices shown are in US Dollars and are Laurel's manufacturer's suggested retail price (MSRP) in the USA. Orders are processed manually, not directly by our shopping cart system. You don't have to supply credit card information when placing an online order.

North American Orders. Laurel does not sell factory-direct in the USA or Canada. Online sales orders are filled through distribution. During the ordering process, you will have the chance to select an authorized Laurel distributor, or you can ask Laurel to refer you to a distributor. The distributor will then contact you to quote shipping, tax and duty (where applicable), and arrange for payment.

International Orders. If your ship-to address indicates that you are outside of the USA or Canada and Laurel has a distributor in your country, we will forward your order to that distributor for follow-up. If Laurel does not have a distributor in your country, we will email you an order acknowledgment and a pro forma invoice which states the product price, shipping charges, and wire transfer information, which includes a $25 bank wire transfer fee.

Questions about your order? Please email your distributor or sales@laurels.com

Configured model number L10000DCV1
Configured price per model $230
Quantity 1
Extended price $230
Quantity
Main Board
L1 Standard Main Board, Green LEDs
L2  Standard Main Board, Red LEDs
L3  Extended DPM, green LEDs
L4  Extended DPM, red LEDs
$230
$230
$260
$260
Power
0 Isolated 85-264 Vac or 90-300 Vdc
1 Isolated 12-32 Vac or 10-48 Vdc
$0
$30
Relay
Output
(isolated)
 None
 Two 8A Contact Relays
 Two 120 mA Solid State Relays
 Four 8A Contact Relays
 Four120 mA Solid State Relays
$0
$80
$55
$100
$75
Analog
Output
(isolated)
 None
1  Isolated 4-20 mA, 0-20 mA, 0-10 V, -10 to +10V
$0
$90
Digital
Interface
(isolated)
 None
 RS232
 RS485(dual RJ11 connectors)
 RS485 Modbus (dual RJ45 connectors)
 USB
 USB-to-RS485 device server
 Ethernet
 Ethernet-to-RS485 device server
$0
$60
$80
$90
$60
$100
$120
$150
Signal
Input
(isolated)
  DC Volts
DCV1  ±200.00 mV
DCV2  ±2.0000 V
DCV3  ±20.000 V
DCV4  ±200.00 V
DCV5  ±600.0 V (range ETL certified to ±300 V)
 
$0
  DC Amps
DCA1  ±2.0000 mA
DCA2  ±20.000 mA
DCA3  ±200.00 mA
DCA4  ±5.000 A
  
$0
Add-on
Options
CBL01   RS232 cable, RJ11 to DB9, 7 ft. Connects RS232 ports of meter
and PC.
CBL02 USB to RS232 adapter cable. Combination of CBL02 and CBL01
connects meter RS232 port to PC USB port. Combination of CBL02 and
CBL04 connects transmitter RS232 terminals to PC USB port.
CBL03-1 6-wire data cable, RJ11 to RJ11, 1 ft. Used to daisy chain meters
via RS485.
CBL03-7 6-wire data cable, RJ11 to RJ11, 7 ft. Used to daisy chain meters
via RS485.
CBL05  USB cable, A-B. Connects USB ports of meter and PC.
CBL06  USB to RS485 adapter cable, half duplex, RJ11 to USB. Connects
meter RS485 port to PC USB port.
NL  Meter Lens with Button Pads but no Laurels Logo
BL  Meter Lens without Button Pads or Laurels Logo
IPC  Splash-proof Cover
BOX1  NEMA-4 Enclosure
BOX2  NEMA-4 Enclosure plus IPC
$19
$39
$8
$8
$15
$39
$5
$5
$40
$140
$180
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