DAQ1400_0 4-20mA Adapter (Versatile Input Phidget)

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Reads one 4-20mA, frequency output, PNP/NPN or 5V sensor, and provides 12 or 24V without an external supply.


DAQ1400_0 4-20mA Adapter (Versatile Input Phidget) – Most of the sensors sold at Phidgets are simple 0-5V devices that can be read directly from a VINT port. But sometimes, you need a special sensor, be it a 4-20mA pressure sensor or a frequency output flow meter. The 4-20mA Adapter (DAQ1400_0 Versatile Input Phidget) aims to provide an interface for as many types of sensors as possible while still keeping its compact form and low price point. Listed below are the various options for this adapter:

SKU: DAQ1400_0

Power Supply 12V/24V

If you have a sensor that requires more than the typical 5V, this option allows you to generate a 12V or 24V power supply. This power is supplied directly through the VINT port with no need for an external power supply, cutting down on messy power wiring. You can also turn the power off through a command in your program as a power saving and control feature.

Voltage Input 5V

Similar to a VINT port opened in VoltageInput mode, this input will read in a 0-5V signal from a 5V sensor. This input is included primarily for industrial sensors that require a 12V or 24V supply, but still return a 0-5V signal. This input, however, does not support ratiometric sensors. For sensors that only require 5V power, you can just use a VINT Hub or InterfaceKit.

Current Input 4-20mA

This input can interface sensors with a 4-20mA output. These sensors are often used in applications with long wires where a voltage signal would normally drop off due to line resistance and be susceptible to interference. You can also use this input to measure small currents in a circuit, but only in the range of 0.5 to 20mA.

FrequencyCounter Input

Do you have a sensor that outputs a frequency signal, or do you need to count the number of logic-level pulses on a line? With this input, you can count pulses and measure the frequency being output by your sensor up to a maximum 1 MHz. You can also select a cutoff frequency in software to determine when a frequency is considered to be ‘zero’.

Digital Input PNP/NPN

For a sensor with a simple output that switches to logic high (PNP), or switches to ground (NPN), this input provides a 10 kΩ internal resistance to pull the line down or up, respectively.


Product Specifications for DAQ1400_0 4-20mA Adapter (Versatile Input Phidget)

Board Properties
Controlled ByVINT
Voltage Sensor
Voltage Resolution71 μV DC
Sensor Input Impedance100 kΩ
Input Voltage Min (DC)0 V DC
Input Voltage Max (DC)5 V DC
Sampling Interval Max 60 s/sample
Sampling Interval Min20 ms/sample
Measurement Error Max0.03 %
Number of Voltage Inputs1
Electrical Properties
Available External Voltage12 or 24 V DC
Current Consumption (Configured)8 mA
Current Consumption (Unconfigured)24 μA
Current Input
Input Current Min500 μA
Input Current Max20 mA
Current Measurement Resolution10 μA
Measurement Error Max0.1 %
Sampling Interval Max 60 s/sample
Sampling Interval Min20 ms/sample
Digital Inputs
Digital Input TypeNPN/PNP
Number of Digital Inputs1
Pull-up Resistance10 kΩ
Pull-down Resistance10 kΩ
FrequencyCounter Input
Number of Channels1
Input Frequency Max2 MHz
Frequency Error Max1 %
Counting Rate Max1E+06 pulses per second
Physical Properties
Recommended Wire Size16 – 26 AWG
Operating Temperature Min-40 °C
Operating Temperature Max85 °C

SKU: DAQ1400_0
TITLE: DAQ1400_0 4-20mA Adapter (Versatile Input Phidget)