4-20 mA Current Output Transmitter for Ratio, Product, Sum or Difference of 2 Rates or Totals

Applicable to Rate or Total for two pulse channels A & B.
DIN Rail mounted, digitally programmable.
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4-20 mA Current Transmitter for sum, difference, ratio, or product of 2 input channels
Key Features
  • Output resolution: 0.0015% of span (16 bits)
  • Output accuracy: ±0.05% of span
  • High update rate
  • Square root extraction standard
  • DIN rail mount housing only 22.5 mm wide
  • Plug-in screw-clamp connectors
Pulse Input
Types

Signal Ground
Channel A Frequency
Channel B Frequency
Minimum Signal
Maximum Signal
Noise Filter
Contact Debounce
Time Base Accuracy
Arithmetic Functions
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
A+B, A-B, AxB, A/B, A/B-1
Analog Output
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 ( 0-500 ohm load )
2 mA ( 5 kOhm 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 (optional)
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.
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 Ratio, Product, Sum or Difference of 2 Inputs


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