Krohn-Hite Corporation - Product Announcements

The Krohn-Hite Model 3988 provides a tunable frequency range from 0.03Hz to 1MHz in the low-pass mode and 0.03Hz to 300kHz in the high-pass mode. Both low end frequency cutoff is 0.003Hz with the 002 option. Each channel of the 3988 is an 8-pole, wide range, low-pass/high-pass filter or an amplifier providing gains to 70dB in 0.1dB steps. (read more)

The Krohn-Hite Model 1200A is an economically priced function generator that features linear, up or down frequency sweeps. Also provided are sine, square and triangle waveforms from 0.2Hz to 3MHz (1500:1 tuning range). (read more)

The Krohn-Hite Model 522 is a DC Voltage Calibrator that is a highly versatile reference source designed to meet the needs of today's demanding requirements for accuracy and stability. The unit's specified accuracies are traceable to the National Institute of Standards and Technologies. (read more)

The Krohn-Hite Model CR-103 is a dc current and dc voltage source/calibrator providing a very stable current of ±0.001% and voltage of ±0.00075%. (read more)

The KH 3A, 3B, 3C and 3D Series of continuous-time fixed-frequency precision active filter modules from Krohn-Hite provide filtering in a 1 to 16-pole compact package, with the choice of cutoff frequencies selectable within the frequency range from 1Hz to 2MHz low-pass and 1Hz to 600kHz high-pass. (read more)

The Krohn-Hite Model 3945 programmable filter provides one Butterworth channel of low-pass, tunable over the range from 170Hz to 25.6MHz; and two independent Butterworth or Bessel channels of low-pass, high-pass or bypass, one channel of band-pass or band-reject, tunable over the range from 3Hz to 2MHz. (read more)

The Krohn-Hite Model 3955 programmable, dual channel, low-pass filter is the first dual low-pass programmable filter of its kind, covering the wide cutoff frequency range from 170Hz to 25.6MHz with 2 digits of resolution. The 3955 is a 4-pole, maximally flat (Butterworth) filter, with an attenuation slope of 24dB/octave and a stopband attenuation of >100dB referred to 1Vrms input. (read more)

The Krohn-Hite Model 3900 has two independent filter channels with a tunable cutoff frequency range from 1Hz to 99kHz and 115dB/octave rolloff. Each channel has a stopband attenuation of >80dB and a passband ripple of typically 0.22dB. Provided are selectable single-ended or differential input with input gains up to 40dB in 10dB steps and output gains to 20dB. (read more)

The Krohn-Hite Models 7600 Series provides 17/34 watts of continuous power and 141V/282V rms from dc to 500kHz. Frequency response is ±0.1dB to 10kHz, and distortion is <0.01% to 5kHz, <0.3% to 100kHz. The voltage gain can be either inverting or non-inverting and selectable ranges from 0dB-14dB, 0dB-28dB and 0dB-42dB, and is continuously variable between ranges. (read more)

The Krohn-Hite Model 523 Precision DC Source is a highly stable and repeatable dc voltage source and dc current source providing N.I.S.T. traceable voltages and currents for use in production, calibration labs, QA and QC departments, design labs, or any place where an accurate voltage and current source is needed. (read more)

The Krohn-Hite Model 4402B is an ultra-pure sinewave (0.0005%), stable amplitude oscillator providing 7Vrms sinewave output (balanced output, 14Vrms end-to-end), 3.5Vrms into 50 ohms, and has no loss in performance when loaded with a linear 50 ohm load. A 3-position, push-button attenuator calibrated in 20dB steps, along with a 30dB vernier, provides a total dynamic range of 90dB. (read more)

The Krohn-Hite Model 6900B is the first and only fully automatic Distortion Analyzer to provide an easy solution to your distortion and AC voltage measurements over the frequency range from 5Hz to 1MHz. The 6900B requires only an input signal. Auto frequency nulling, auto level setting and auto-ranging of the digital meter automatically displays the total harmonic distortion (THD). (read more)

The Krohn-Hite Model 6620 provides precision phase measurements with a typical accuracy of 0.02° and resolution of 0.01°. It will accept a wide range of input signal levels from 10mVrms to 320Vrms and input waveforms including sine, triangle, square and pulses. A 5 digit LED display provides continuous direct readout of phase angles between 0.00° and 360.00° or ±180°. (read more)

The Krohn-Hite Model 3940 programmable, dual channel, Butterworth/Bessel filter is a GPIB/benchtop filter covering a cutoff frequency range from 3Hz to 2MHz. Attenuation slope is 24dB/octave per channel. The 3940 will accept input levels of ±4.5V peak. Pre and post-filter gains of 0dB or 20dB is also provided. All functions are front panel or GPIB bus controlled. (read more)

The Krohn-Hite Model 7500 provides more than 75 watts of continuous power (150 watts at dc), and 125V rms from dc to 100kHz. Frequency response is typically flat to within 0.05dB over most of its range. In addition, the 7500 typically contributes <0.05% of total harmonic distortion, at full power output, up to 10kHz. (read more)

1Hz to 200kHz, 16 Channel Signal Conditioning Filter/Amplifier (read more)

1Hz to 200kHz, 4 Channel Signal Conditioning Filter/Amplifier (read more)

The Krohn-Hite Model 511 Precision DC Source/Calibrator is a secondary standard that is highly stable and repeatable from ±100nVdc to ±10Vdc, providing N.I.S.T. traceable voltages for use in production, calibration labs, QA and QC departments, design labs, or any place where an accurate voltage is needed. (read more)

The KH Model 3380 Filter Series are one, two or four channel filters providing ease of operation and the reliability Krohn-Hite has been known for since 1949; along with a price that will fit any budget. (read more)

The Krohn-Hite 3360 Series provides a tunable frequency range from 0.1Hz to 200kHz, and with the 002 option, the range is extended to 0.005Hz. Each channel of the 3360 Series is a selectable low-pass or high-pass, 4-pole filter providing an input gain to 50dB, and an output gain to 20dB selectable in 0.1dB steps. Standard response types are Butterworth and Bessel. (read more)

The Krohn-Hite Model 3944 is a 4-channel, Butterworth/Bessel filter providing GPIB/benchtop filtering covering a cutoff frequency range from 3Hz to 2MHz. Passband gain is unity, and the attenuation slope is 24dB/octave per channel. The 3944 will accept input signals of ±4.5V peak providing input and output gains of 0dB or 20dB selectable via the front panel keyboard or the GPIB bus. (read more)

Measured Accuracy: to a value within ±0.5ppm measured with 10mA at 23ºC. Nominal Value: 100 ohms Calibration Uncertainty: ±0.5ppm Stability (1 Year): Typically ±2ppm Temperature Coefficient: ±1.5ppm/ºC (temperature correction graph provided to correct out temperature effects) Max. Working Operating Current: 110mA 4-Wire Operation Calibration Cycle: One year Certified to N.I.S.T. (read more)