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Transmitters, 4-20 mA & Modbus - Panel Meters - Counters - Timers - Ethernet - USB - RS485 - RS232

Laureate™ DC Voltage & Current Digital Panel Meters

High accuracy, high read rate, control outputs

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
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.

Power High 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

DC Voltage

DC Voltage Range Resolution Input Resistance Error at 25°C
±200.00 mV 10 µV 1 GΩ 0.01% FS ± 2 cts
±2.0000 V 100 µV 1 GΩ 0.01% FS ± 2 cts
±20.000 V 1 mV 10 MΩ 0.01% FS ± 2 cts
±200.00 V 10 mV 10 MΩ 0.01% FS ± 2 cts
±300.0 V 0.1 V 10 MΩ ± 0.4 V
±600.0 V* 0.1 V 10 MΩ ± 0.4 V
* Range ETL certified to 300.0 V only.

DC Current

DC Current Range Resolution Input Resistance Error at 25°C
±2.0000 mA 0.1 µA 100 Ω 0.01% FS ± 2 cts
±20.000 mA 1.0 µA 10 Ω 0.01% FS ± 2 cts
±200.00 mA 10 µA 1 Ω 0.01% FS ± 2 cts
±5.000 A 1 mA 0.01Ω ± 10 mA

DC Voltage & Current

Display
Readout 5 LED digits, 7-segment, 14.2 mm (.56"), red or green.
Range -99999 to 99999 or -99990 to 99990 (count by 10)
Indicators Minus sign, 2 red LED lamps
A-to-D Conversion
Technique Concurrent Slope™ (Pat 5,262,780)
A-to-D rate 60/s at 60 Hz, 50/s at 50 Hz
Output update rate 56/s at 60 Hz, 47/s at 50 Hz
Display update rate 3.5/s at 60 Hz, 3/s at 50 Hz
Accuracy
Error at 25°C 0.01% FS ± 2 counts (except 5A range)
Span tempco 0.003% of reading/°C
Zero tempco 0.1 count/°C
Noise Rejection
CMR, DC to 60 Hz 130 dB
NMR at 50/60 Hz 90 dB with min filtering
Maximum Signal
Max applied voltage 600 Vac for 20, 200 and 300 V ranges, 125 Vac for other ranges
Current protection 25x for 2 mA, 8x for 20 mA, 2.5x for 200 mA, 1x for 5 A
Power
Voltage, standard 85-264 Vac or 90-300 Vdc (DC operation not ETL certified)
Voltage, optional 12-32 Vac or 10-48 Vdc
Frequency DC or 47-63 Hz
Power  consumption (typical, base meter) 1.2W @ 120 Vac, 1.5W @ 240 Vac, 1.3W @ 10 Vdc, 1.4W @ 20 Vdc, 1.55W @ 30 Vdc, 1.8W @ 40 Vdc, 2.15W @ 48 Vdc
Power Isolation 250V rms working, 2.3 kV rms per 1 min test
Excitation Output (standard)
5 Vdc 5 Vdc ± 5%, 100 mA
10 Vdc 10 Vdc ± 5%, 120 mA
24 Vdc 24 Vdc ± 5%, 50 mA
Output Isolation 50 Vdc to meter ground
Analog Output (optional)
Output levels 4-20 mA, 0-20 mA, 0-10V, -10 to +10V (jumper selectable)
Current compliance 2 mA at 10V ( > 5 kΩ load)
Voltage compliance 12V at 20 mA (< 60Ω load)
Scaling Zero and full scale adjustable from -99999 to +99999
Resolution 16 bits (0.0015% of full scale)
Isolation 250V rms working, 2.3 kV rms per 1 min test
Relay Outputs (optional)
Relay types 2 Form C contact relays or 4 Form A contact relays (NO) 2 or 4 Form A, AC/DC solid state relays (NO)
Current tatings 8A at 250 Vac or 24 Vdc for contact relays 120 mA at 140 Vac or 180 Vdc for solid state relays
Output common Isolated commons for dual relays or each pair of quad relays
Isolation 250V rms working, 2.3 kV rms per 1 min tes
Serial Data I/O (optional)
Board selections RS232RS485 (dual RJ11 or RJ45 connectors), USB, Ethernet, USB-to-RS485 converterEthernet-to-RS485 converter
Protocols Modbus RTU, Modbus ASCII, Modbus TCP (Ethernet), Laurel ASCII
Data rates 300 to 19200 baud
Digital addresses 247 (Modbus), 31 (Laurel ASCII),
Isolation 250V rms working, 2.3 kV rms per 1 min test
Signal Connections
DC panel meter signal connections
Environmental
Operating temperature 0°C to 55°C
Storage temperature. -40°C to 85°C
Relative humidity 95% at 40°C, non-condensing
Protection NEMA-4X (IP-65) when panel mounted
Ordering Guide
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 $230
L2  Standard Main Board, Red LEDs $230
L3  Extended DPM, green LEDs $260
L4  Extended DPM, red LEDs $260
Power 0  Isolated 85-264 Vac or 90-300 Vdc $0
1  Isolated 12-32 Vac or 10-48 Vdc $30
Relay
Output
(isolated)
0  None $0
1  Two 8A Contact Relays $80
2  Two 120 mA Solid State Relays $55
3  Four 8A Contact Relays $100
4  Four 120 mA Solid State Relays $75
Analog
Output
(isolated)
0  None $0
1  Isolated 4-20 mA, 0-20 mA, 0-10 V, -10 to +10V $90
Digital
Interface
(isolated)
0  None $0
1  RS232 $60
2  RS485 (dual RJ11 connectors) $80
4  RS485 (dual RJ45 connectors) $90
5  USB $60
6  USB-to-RS485 device server $100
7  Ethernet $120
8  Ethernet-to-RS485 device server $150
Signal
Input
(isolated)
  DC Volts  
DCV1  ±200.00 mV $0
DCV2  ±2.0000 V
DCV3  ±20.000 V
DCV4  ±200.00 V
DCV5  ±600.0 V (range ETL certified to ±300 V)
  DC Amps  
DCA1  ±2.0000 mA $0
DCA2  ±20.000 mA
DCA3  ±200.00 mA
DCA4  ±5.000 A
Add-on
Options
CBL01  RS232 cable, RJ11 to DB9, 7 ft. Connects RS232 ports of meter and PC. $19
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. $39
CBL03-1  6-wire data cable, RJ11 to RJ11, 1 ft. Used to daisy chain meters via RS485. $8
CBL03-7  6-wire data cable, RJ11 to RJ11, 7 ft. Used to daisy chain meters via RS485. $8
CBL05  USB cable, A-B. Connects USB ports of meter and PC. $15
CBL06  USB to RS485 adapter cable, half duplex, RJ11 to USB. Connects meter RS485 port to PC USB port. $39
CASE1  Benchtop Laboratory Case for One 1/8 DIN Meter $115
CASE2  Benchtop Laboratory Case for Two 1/8 DIN Meters $115
NL  Meter Lens with Button Pads but no Laurels Logo $5
BL  Meter Lens without Button Pads or Laurels Logo $5
IPC  Splash-proof Cover $40
BOX1  NEMA-4 Enclosure $140
BOX2  NEMA-4 Enclosure plus IPC $180
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