Laurel Electronics LT: 4-20 mA & Serial Data Output Transmitter for AC RMS Voltage or Current Input User Manual
Page 2
LAUREL
ELECTRONICS INC., 3183-G Airway Ave., Costa Mesa, CA 92626, USA • Tel 714-434-6131 • www.laurels.com 2
Specifications
Analog Input
Range
Resolution
Input Ohms
Error at 25°C
200.00 mV
2.0000 V
20.000 V
200.00 V
10 µV
100 µV
1 mV
10 mV
1 MΩ
± 0.1% of FS
Voltage Ranges
0% to 100% of FS,
10 Hz to 10 kHz
600.0 V*
100 mV
1 MΩ
± 0.3% of FS
2.0000 mA
20.000 mA
200.00 mA
0.1 µA
1 µA
10 µA
100 Ω
10 Ω
1 Ω
± 0.1% of FS
Current Ranges
0% to 100% of FS,
10 Hz to 10 kHz
5.000 A
1 mA
0.01 Ω
± 0.4% of FS
Analog Output (standard)
Output Levels
Compliance, 4-20 mA
Compliance, 0-10V
Output Resolution
Output Accuracy
Output Isolation
Step response time
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
50 ms
Serial Communications (standard)
Signal Types
Data Rates
Output Isolation
Serial Protocols
Modbus Modes
Modbus Compliance
Digital Addressing
RS232 or RS485 (half or full duplex)
300, 600, 1200, 2400, 4800, 9600, 19200 baud
250V rms working, 2.3 kV rms per 1 min test
Modbus RTU, Modbus ASCII, Laurel ASCII
RTU or ASCII
Modbus over Serial Line Specification V1.0 (2002)
247 Modbus addresses. Up to 32 devices on an RS485 line with no repeater
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 ETL approved)
10-48 Vdc or 12-32 Vac
DC or 47-63 Hz
250V rms working, 2.3 kV rms per 1 min test
2Watts
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.
* Range ETL certified to 300.0 V. For purposes of accuracy calculation, the full scale range for the 200V
and 600V scales is 2000V (20,000 counts), and the full scale range for the 5A scale is 20A (20,000 counts).