Magnetic speed sensors manufacturing

RF Sensor Frequency to Current Signal Converters

SPECTEC Model 4016 and 4057 frequency to current signal converters, for use with RF pickups - either .33 mH (Cox) or 1.0 mH (FTI) RF sensors.

The power supply input on these signal converters are designed to cover the entire range of commonly available DC power without any necessary selections or adjustments.

The 4016 Frequency to Current signal converter is field adjustable to several outputs, including the popular 4-20 mA or 10-50 mA output. The ZERO and SPAN adjustments make it easy to calibrate to almost any measurement range, with little interaction between the adjustments.

4-20mA converter for RF pickups

This signal converter fits compactly into an explosion-proof Y3 enclosure. Input and output configurations are field selectable to fit most applications and can be used with either 2-wire or 3-wire power supply configuration.

Model 4057 Programmable Frequency to Current Converter

The Model 4057 Frequency To Current/Frequency to Voltage Converter features user selectable output modes - quickly selected via a backlit LCD screen and push-button dial.

Users select from various modes of digital frequency output, while simultaneously providing an analog output. The analog output option can be set to convert the input frequency to a proportional output current (FTC) of either 4-20mA, 0-20mA, or 0-24mA. The digital output may be programmed to multiply, divide, or apply a K-factor scalar to the input frequency.

Programmable frequency to voltage converter for speed sensors

RF Freq to Current Signal Converters Specs:


  Model 4016 Model 4057
Spec Sheet:
Freq range: HI setting: 1100 Hz to 5 kHz
LO setting: 115 Hz to 1100 Hz
.3 to ~7 KHz
Styles: 2.0” dia. Standard puck 2.5” dia. PVC puck
Temp range: -40 to +160° F (-40 to +70° C) -4 to 167° F (-20 to 75° C)
Output: 4-20mA; 10-50mA or 0-20 mA; 0-50 mA 4-20mA, 0-20mA, 0-24mA
Supply voltage: 12 - 30 Vdc
Reverse polarity to 50 Vdc,
Short circuit to supply or ground
12 to 24 Vdc @ 75 mA max
Dimensions: 2.0" dia.
1.2" height
2.5" dia.
1.3" height

RF 4-20mA Signal Converter Applications:

Applications of 4-20 mA signal converters include turbine flow meters, process control units, dataloggers, flow controllers, and computers.

Related Products:

See also our full line of RF pickups and our explosion-proof enclosures.