Philips PM 6671 - User Manual

Timer-Counters
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Summary

1. Technical Specification

Frequency Measurement

Time Interval Measurements

Phase and Ratio Measurements

Count and RPM Measurements

Input and Output Specifications

Input A and B Specifications

Electrical characteristics for inputs A and B, including frequency range, sensitivity, and impedance.

Input C Specifications (PM 6672)

Details for the high-frequency input C on the PM 6672 model.

2. Installation Instructions

General Installation Precautions

Safety and handling guidelines before and during counter installation.

Grounding and Cabinet Opening

Procedures for proper grounding and safe cabinet access.

Power and Fuse Information

Details on line voltage setting, external battery, and fuse replacement.

3. Operating Instructions: Front Panel

Front Panel Controls Overview

Explanation of key front panel controls like POWER, CHECK, RESET, DISPL HOLD.

Measurement Mode Selection

How to select measurement modes using the rotary switch (FREQ, RATIO, PHASE, COUNT, PULSE WIDTH, TIME INT).

3. Operating Instructions: Advanced Functions

Time Interval and Period Modes

SPECIAL FUNCTIONS

Arming and External Reset

Using external signals for arming and resetting the counter.

Burst Frequency Measurements

Practical Measurements: Setup and Frequency

Preliminary Settings for Measurements

Initial setup steps required before performing measurements.

Frequency Measurement Procedure

Step-by-step guide for performing frequency measurements.

Period Measurement Procedure

Step-by-step guide for performing period measurements.

Practical Measurements: Count, Ratio, and Time

Count Measurement Procedures

Ratio Measurement Procedures

Time Interval Measurement Procedures

Phase Delay Measurement Procedures

Practical Measurements: Pulse Width and Check Mode

Pulse Width Measurement Procedure

Check Mode Self-Test

How to perform a self-test using the CHECK mode.

4. Performance Check

Oscillator and Frequency Response Checks

Procedures to check the internal oscillator and frequency response.

Input C and Trigger Level Checks

Testing Input C (PM 6672) and trigger level adjustments.

Performance Check: Count and Time Measurements

Count Measurement Checks

Verification steps for COUNT A modes.

Pulse Width and Time Interval Checks

Performing checks for PULSE WIDTH and TIME INT modes.

RPM, Period, Freq, Ratio, Phase Checks

Hold-Off and Low-Pass Filter Checks

Performance Check: Frequency and Control Signals

Frequency Average and EXT STD IN Checks

External Reset, Arming, and Output Checks

Philips PM 6671 Specifications