Laurel Electronics Laureate Ohmmeter for Resistance in Ohms or Milliohms - Manual (Page 2)

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 2
Display
Readout
Color
Indicators 5 digits, 7-segment, 14.2 mm (.56")
Red or green LED
2 red LED lamps
Accuracy
Accuracy at 25°C
Span tempco ±0.01% of range ± 2 counts
±0.003% of reading/°C
Electrical
Connection
Max applied voltage
Overvoltage protection
Open sensor indication 2, 3 or 4-wire
100 mV
125 Vac
Flashes full-scale
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
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 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 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
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