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Specifications, Laureate Scale Meter
for Weighing Applications
High accuracy weight, low cost, plus control outputs
Key Features
- Digital panel meter optimized for weighing applications
- 5-digit resolution with scaling from 0 to 99,999, plus fixed zero for display to 999,990
- Auto-tare or manual tare, with tare value stored in non-volatile memory.
- Auto-zero display function
- Display toggle between gross or net weight
- Count by 1, 2, 5, 10, 20, 50 or 100 with rounding
With Load Cell Signal Conditioner
| Full-Scale Input |
Zero Adjust |
Span Adjust |
Error at 25°C |
± 20.000 mV
± 50.000 mV
± 100.00 mV
± 250.00 mV
± 500.00 mV
|
-99,999
to
+99,999
|
0 to
± 99,999
|
0.0030% of
reading
per °C |
With DC Signal Conditioner
| Full-Scale Input |
Zero Adjust |
Span Adjust |
Error at 25°C |
± 200 mV
± 2 V
± 20 V
± 20 mA
|
-99,999
to +99,999
|
0 to
±99,999
|
0.01% FS
± 2 counts
|
With Load Cell or DC Signal Conditioner
| Display |
Readout
Range
Rounding
Indicators |
5 LED digits, 7-segment, 14.2 mm (.56"), red or green
-99999 to +99999
-999990 to +999990 (with fixed selectable right-hand zero)
Count by 1, 2, 5, 10, 20, 50, 100
Four LED lamps |
| Accuracy |
Error at 25°C
Span Tempco
Zero Tempco
Calibration Method |
0.01% FS ± 2 counts
0.0015% of reading/°C
Auto-zero
2 points using zero weight and known weight
|
| Noise Rejection |
CMR, DC to 60 Hz
NMR at 50/60 Hz |
130 dB
90 dB with min filtering |
| A-to-D Conversion |
Technique
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 |
| Power |
Voltage, standard
Voltage, optional
Frequency
Power Isolation |
85-264 Vac or 90-300 Vdc (DC operation not UL approved)
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
2 mA at 10V ( > 5 kOhm load)
12V at 20 mA ( < 600 ohm 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 Ratings
Output common
Isolation |
Two Form C contact relays, SPDT
Two Form A, AC/DC solid state relays, SPST (NO)
8A at 250 Vac or 24 Vdc for contact relays
130 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 |
RS232, RS485, Modbus RS485, USB, USB-to-RS485 converter, Ethernet, Etherned-to-RS485 converter.
Modbus RTU, Modbus ASCII, simpler Laurel ASCII protocol
300 to 19200 bps
247 (Modbus), 31 (Laurel ASCII),
250V rms working, 2.3 kV rms per 1 min test |
| Environmental |
Operating Temp.
Storage Temp.
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 |
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