Sanjian Studio PLJ-0802-A - User Manual

PLJ-0802-A
V 1.0
2014 年 8 月
36536-TE
7-digit LCD Frequency Counter Module
Information including Links and Code (Software) Supplied or Referenced in this Document is
supplied by MPJA inc. as a service to our customers and accuracy or usefulness is not
guaranteed nor is it an Endorsement of any particular part, supplier or manufacturer.
Use of information and suitability for any application is at users own discretion and user
assumes all risk.
All rights are retained by the Owners/Author(s)

Sanjian Studio PLJ-0802-A Specifications

General

Brand	Sanjian Studio
Model	PLJ-0802-A
Category	Measuring Instruments
Language	English

Summary

Precautions

Wiring and Power Safety

Ensure correct polarity for power and signal connections to prevent damage.

Environmental and Stability Notes

Avoid extreme environments and note the pre-aligned reference oscillator.

Product Overview

General Description

An intelligent frequency meter designed for embedded applications, small and reliable.

Key Features

Highlights PIC core, VC-TCXO, dual IF modes, LCD, reverse power protection, and auto-save.

Technical Specifications

Measurement Performance

Covers measuring range, accuracy, and channel sensitivity across various frequencies.

IF Settings and Frequency Reference

Details adjustable IF settings, offset, and the VC-TCXO reference stability.

Supply and Connections

Specifies power input, current draw, and interface connectors for power, signal, and programming.

Operation and Usage

Module Mounting and Layout

Illustrates module components, connections, and physical dimensions for mounting.

Preparation and Initial Use

Steps for powering up, checking voltage, and warming up the module before measurement.

Menu Structure and Controls

Intermediate Frequency Configuration

Guides on setting intermediate frequency values and IF offsets.

Display and System Reset

Covers display adjustments and the procedure for system resetting.

IF Frequency Selection and Configuration

IF Selection via ICSP Pin

Explains how pin 4 of the ICSP interface selects between two IF frequencies.

IF and Offset Programming

Details the process of programming specific IF frequencies and their offsets.

Practical IF Selection Setup

Suggests using external switches for convenient IF setting selection.

Measurement Connections

Hard-Wired Measurement Method

Instructions for direct connection, including impedance matching and attenuation.

Inductive Sensing Measurement Method

Guidelines for using inductive coupling for measurement, especially for high-power devices.