Laurel Electronics Laureate Thermocouple Panel Meter-Controller - Manual (Page 2)

LAUREL ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 2
Accuracy
Calibration
Overall accuracy at 25°C
Span tempco
Reference junction accuracy
Span tempco NIST Monograph 125 (IPTS-68)
±0.01% of full span + conformity error
±0.003% of reading/°C
0.5°C, 10°C to 40°C
±0.003% of reading/°C
Electrical
Input resistance
Input current
Max lead resistance
Overvoltage protection
NMR at 50/60 Hz
CMR, DC-60 Hz
CMV, DC-60 Hz 1 GΩ
100 pA
1 kΩ max for rated accuracy
125 Vac
80 dB plus selectable digital filter
120 dB with 500 ohm imbalance
250 Vac from power and earth grounds
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
Display
Readout
Color
Indicators
Open sensor indication 5 digits, 7-segment, 14.2 mm (.56")
Red or green LED
Minus sign plus 4 red LED lamps for relays
Flashes full-scale
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 kΩ load)
12V at 20 mA ( < 600Ω 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 (normally open)
2 or 4 Form A, AC/DC solid state relays (normally open)
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 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