Laurel Electronics LTE: Ethernet & 4-20 mA Output Transmitter for Duty Cycle Input - Manual (Page 2)

LAUREL ELECTRONICS INC. , 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 2
Specifications
Duty Cycle Mode
Transmitter item
Frequency Range
Input Accuracy ON or OFF period as a percent of total period
0.005 Hz to 50 kHz
0.01%, 0.005 Hz to 500 Hz; 0.1% at 5 kHz; 1% at 50 kHz
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
Pulse Input
Types
Grounding
Minimum Signal
Maximum Signal
Noise Filter
Contact Debounce AC, pulses from NPN, PNP transistors, contact closures, magnetic pickups
Common ground for channels A & B.
Nine ranges from (-12 to +12 mV) to (+1.25 to +2.1V)
250 Vac
1 MHz, 30 kHz, 250 Hz (selectable)
0, 3, 50 ms (selectable)
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 ( 0-500 ohm load )
2 mA ( 5 kOhm 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
Sensor Excitation Output (standard)
Output Levels
Output Isolation 5V@100 mA, 10V@120 mA, 24V@50 mA (jumper selectable)
50V from signal ground
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
Power Input
Standard Power
Low Power Option
Power Frequency
Power Isolation
Power Consumption 85-264 Vac or 90-300 Vdc (DC operation not UL approved)
10-48 Vdc or 12-32 Vac
DC or 47-63 Hz
250V rms working, 2.3 kV rms per 1 min test
2W typical, 3W with max excitation output
Mechanical
Dimensions
Mounting
Electrical Connections 129 x 104 x 22.5 mm case
35 mm rail per DIN EN 50022
Plug-in screw-clamp connectors
Environmental
Operating Temperature
Storage Temperature
Relative Humidity
Cooling Required 0°C to 55°C
-40°C to 85°C
95% at 40°C, non-condensing
Mount transmitters with ventilation holes at top and bottom.
Leave 6 mm (1/4") between transmitters, or force air with a fan.