Magnetic speed sensors manufacturing

4-20mA Converters - Freq to Voltage Signal Converter
Frequency to Current Converters

4-20mA converters and frequency to voltage converters for magnetic speed sensorsSPECTEC's frequency to voltage converters and 4 - 20 mA converters are adaptable to many applications with their wide variety of field selectable input voltages and output variables.

SPECTEC's 4-20mA frequency to current converters and frequency to voltage converters are also known for their capacity to operate in environments with a wide temperature range.

The ZERO and SPAN adjustments on all signal conditioner models allow them to be calibrated to almost any measurement range, with virtually no interaction between the adjustments. The power supply input on all the signal converters covers a wide range of commonly used DC power without any need for selection or adjustment and is protected against reverse polarity wiring. All outputs are fully protected against short circuits to supply, ground or signal out continuous.

Model 4026 Frequency to Voltage and Frequency to Current Converter

SPECTEC's Model 4026 Frequency to Voltage converter and 4-20mA converter is very versatile with field selectable inputs and outputs, giving your field technician the ability to convert the input signal from any passive or active magnetic speed sensor, Hall effect sensor, or zero speed sensor. The field selectable frequency to voltage output for the converter can be configured as either 0-5V or 0-10V volts.

In the Frequency to Current converter configuration, the output settings are 4-20mA or 10-50mA. The coarse range is set by jumpers and the fine tuning is set by precision potentiometers. The scale of the output is proportional to the frequency of the input signal. The Model 4026 FTV/FTC converter fits compactly in a Killark "Y3" explosion-proof enclosure.

Model 4027 4-20mA Signal Converter

SPECTEC’s Model 4027 4-20mA Signal Converter is a frequency to current converter with a field selectable high or low frequency input configurations to match all application specifications. This 4 - 20 mA signal converter can be used in either 2-wire or 3-wire power supply configuration. The Model 4027 signal converter compactly fits an explosion-proof ELBY 90 degree enclosure for ease of mounting directly on to an conduit mount magnetic sensor.

Model 4028 Frequency To Voltage Converter

SPECTEC's Model 4028 Frequency To Voltage Converters has two field selectable input configurations to fit high or low frequency applications. Power inputs can be configured for either a 2-wire or 3-wire power supply. The Model 4028 FTV converter compactly fits an explosion-proof ELBY 50 or 75 elbow enclosure.

FTV and FTC Signal Converter Characteristics:


  Model 4026 Model 4027 Model 4028
Freq Range High setting: 1100 Hz to 100 kHz (depending on target mass and velocity)
Lo Setting: 75 Hz to 10 kHz
Styles 2.01” dia. PVC puck 1.47” dia. PVC puck
Input Sensitivity 50 or 100 mVpp
0 - Vs TTL (50 V max)
12 or 50 mVpp
Temp range -40 to 160 F
(-40 to 70 C)
-40 to 225° F (-40 to 105° C)
Output 4 to 20mA;
10 to 50mA;
0 to 5 V;
or 0 to 10 V
4 to 20 mA 0 to 5 V(TTL)
or 0 to 10 V
Supply voltage 9 Vdc min for 0-5Vo
11 Vdc min for 0-10 Vo
38 Vdc max
9 to 36 Vdc @ 4 mA 12 to 30 Vdc @ 5 mA
Input Protection 50 Vac, reversed leads 100 Vac, reversed leads

Related Frequency to Voltage Signal Converter Products:

See our passive magnetic speed sensors and line of explosion-proof enclosures.

More Information:

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