Laurel Electronics LT: 4-20 mA & Serial Data Output Transmitter for Load Cell & Microvolt Signals - 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 Input Ohms Input Ohms
Load Cell Input
±20.000 mV
±50.0000 mV
±100.00 mV
±250.00 mV
±500.00 mV
-99,999 to +99,999
zero adjust.
0 to ±99,999
span adjust.
1 GΩ
Microvolt Input
±20.000 mV
±50.0000 mV
±100.00 mV
±250.00 mV
±500.00 mV
1 µV
2.5 µV
5.0 µV
12.5 µV
25 µV
1 GΩ
Input Resolution
Input Accuracy
Update Rate, Max
Max applied voltage 16 bits (65,536 steps)
±0.01% of full scale ± 2 counts
50/sec at 50 Hz, 60/sec at 60 Hz
100 V
Analog Output (standard)
Output Levels
Compliance, 4-20 mA
Compliance, 0-10V
Output Resolution
Output Accuracy
Output Isolation
Step response time 4-20 mA, 0-20 mA, 0-10 Vdc (jumper selectable)
10V ( 0-500Ω load )
2 mA ( 5 kΩ load or higher)
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 Output (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 w/o a 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
Transducer Excitation Output (standard)
Output Levels
Output Isolation 5V@100 mA, 10 @120 mA, 24V@50 mA (jumper selectable)
50V from signal ground
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.