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Provides operation and maintenance instructions, specifications, schematic diagram and parts list for Models 3320, 3321, 3322 and 3323 filters.
Details frequency range, bands, multipliers, frequency control, calibration accuracy, and bandwidth for the filters.
Explains flexibility of bandwidth adjustment, showing low-pass, high-pass, band-pass and band-reject responses.
Instructions for unpacking, examining for damage, and general setup of the filter unit, including rack-mounting.
Description of front and rear panel controls, including frequency, function, gain, and power switches.
Details the step-by-step procedure for operating Model 3320 and 3321 filters.
Provides instructions for obtaining High-Pass or Low-Pass operation with 48 db per octave attenuation for dual-channel models.
Details cascading channels for band-pass operation with 24 db per octave attenuation, including bandwidth considerations.
Provides steps for parallel connection of channels to achieve band-reject or notch filter operation.
Discusses the composition of hum and noise and how filter settings affect it.
Describes the BNC coaxial connectors provided on the front and rear panels for input and output.
Details line operation power requirements and modifications for different line voltages.
Information on ordering and installing an optional battery kit for uninterruptible power.
Step-by-step guide for installing batteries, including types and connection details.
Overview of the four-pole, variable electronic filter and its operating modes (Low-Pass, High-Pass).
Provides a detailed breakdown of the filter's circuit components and their functions.
Details the two-stage operational amplifier circuit for signal input, including FETs and transistors.
Explains the operation of Network Amplifiers, typically consisting of transistors and associated components.
Describes the R-C tuning elements and amplifier stages forming the filter's frequency characteristic.
Details the four-stage operational amplifier circuit responsible for the filter's output signal.
Explains the Butterworth and RC response characteristics and how the FUNCTION switch selects them.
Describes the unregulated and regulated power supplies used in the 3320 Series filters.
Procedure for locating the source of trouble, accessing components, and general troubleshooting guidance.
Guidance on checking the two power supplies for correct operation and voltage levels.
Procedure for localizing malfunctions by tracing the signal path through the filter circuit.
Specific troubleshooting steps for malfunctions in Low-Pass and High-Pass modes, including test points.
Troubleshooting the Input Amplifier by monitoring DC levels and tracing error signals.
Troubleshooting the Output Amplifier by checking DC levels and tracing error signals.
Procedure to identify faulty resistive or capacitive elements within the tuning circuits.
Troubleshooting the Network Amplifiers by checking DC levels and tracing feedback signals.
Methods for identifying calibration errors by measuring test points with an AC meter and oscilloscope.
Procedure for incoming acceptance and periodic maintenance checks, adhering to original specifications.
Covers cutoff frequency calibration, pass-band gain, attenuation slope, maximum attenuation, output impedance, and hum/noise.
Lists the necessary test equipment for performing calibration and maintenance procedures.
Outlines general procedures for DC voltage measurements, visual inspection, and locating adjustments.
Details how to check the plus and minus 9 volt supplies with respect to ground during operation.
Provides a step-by-step test procedure to check filter performance, including setup and limits.
General| Brand | Krohn-Hite |
|---|---|
| Model | 3320 Series |
| Category | Water Filtration Systems |
| Language | English |
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