4-20 mA Current Output Transmitter for Frequency, Rate or Period Input

Dual channels. Rate and total in same transmitter. DIN Rail mounted, digitally programmable.
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4-20 mA current transmitter, frequency, rate or period input
Key Features
  • Isolated 4-20 mA or 0-10V transmitter outputs, selectable
  • Two independently field-scalable pulse input channels
  • All ranges factory calibrated
  • Frequenscies from 0.005 Hz to 1 MHz
  • Output resolution: 0.0015% of span (16 bits)
  • Output accuracy: ±0.02% of span
Specifications
Laureate 4-20 mA Transmitter for Frequency, Rate or Period Input

Signal Input
Types

Grounding
Channel A Frequency
Channel B Frequency
Minimum Signal
Maximum Signal
Noise Filter
Contact Debounce
Time Base Accuracy		 AC, pulses from NPN, PNP transistors, contact closures,
magnetic pickups.
Common ground for channels A & B
0.005 Hz to 1 MHz
0.005 Hz to 250 kHz
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)
Quartz crystal calibrated to ±2 ppm
Analog Output (standard)
Output Levels
Compliance, 4-20 mA
Compliance, 0-10V
Output Resolution
Output Accuracy
Output Update Rate
Output Isolation		 4-20 mA and 0-10 Vdc (selectable)
10V ( 0-500Ω load )
2 mA ( 5 kΩ load )
16 bits (65,536 steps)
0.02% of output span
Programmed gate time + 30 ms + 0-2 signal periods
250V rms working, 2.3 kV rms per 1 minute test
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
130 mA at 140 Vac or 180 Vdc
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 without a repeater.
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.
Pinout

Laureate 4-20 mA Transmitter for Frequency, Rate or Period Input


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