Laurel Electronics LTE: Ethernet & 4-20 mA Output Transmitter for AC Phase Angle & Power Factor User Manual

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LAUREL

ELECTRONICS INC.

, 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 2

Specifications

Phase Angle Mode

Item Transmitted
Transmitted Units
Frequency Range
Accuracy
Maximum Timing Interval

Phase angle difference between two waves of same period
1°, 0.1°, 0.01°
.005 Hz to 10 kHz
.01°, .005 Hz to 100 Hz, 0.1° at 1 kHz, 1° at 10 kHz
200 s

Power Factor Mode

Item Transmitted
Transmitted Units
Polarity
Frequency Range
Accuracy

Power factor between two sine waves of same period
1.000 to 0.000, 1.00 to 0.00, or 1.0 to 1.0
Negative sign indicates negative phase angle
0.005 Hz to 10 kHz
0.1% at power line frequencies

Inputs

Signal Types
Signal Ranges
Signal Ground
Noise Filter

Sinusoidal AC and square waves
10 mV to 250 Vac
Common ground for channels A & B
1 MHz, 30 kHz, 250 Hz (selectable)

Update Rate

Conversion Interval
Gate Time
Time Before Zero Output

Gate time + 30 ms + 0-2 signal periods
Selectable 10 ms to 199.99 s
Selectable 10 ms to 199.99 s

Analog Output (standard)

Output Levels
Compliance, 4-20 mA
Compliance, 0-10V
Output Resolution
Output Accuracy
Output Isolation

0-20 mA or 0-10 Vdc (selectable)
10V (0-500Ω load)
2 mA (5 kΩ load)
16 bits (65,536 steps)
0.02% of output span plus conversion accuracy
250V rms working, 2.3 kV rms per 1 minute test

Serial Communications (standard)

Type
Data Rates
Output Isolation
Serial Protocols
Modbus Compliance
Digital Addresses

10/100Base-T Ethernet per IEEE 802.3
300, 600, 1200, 2400, 4800, 9600, 19200 baud
250V rms working, 2.3 kV rms per 1 min test
Modbus TCP, Modbus RTU, Modbus ASCII, Laurel ASCII
Modbus over Serial Line Specification V1.0 (2002)
247 for Modbus, 31 for Laurel ASCII

Dual Relay Output (standard)

Relay Type
Load Rating

Two solid state relays, SPST, normally open, Form A
120 mA at 140 Vac or 180 Vdc

Sensor Excitation Output (standard)

Output Levels
Output Isolation

5V@100 mA, 10V@120 mA, 24V@50 mA (jumper selectable)
50V from signal ground