Vibracion

A Beginner’s Guide to Using a Digital Accelerometer

Formerly

Spectrum Sensors & Controls - Akron (Formerly Summit Instruments, Inc.) 2236 N. Cleveland-Massillon Rd. Akron, OH 44333 Tel: (330) 659-3312 Fax: (330) 659-3286

Introduction
This document guides new users through basic setup of a Spectrum Sensors & Controls digital accelerometer. The pre-configured nature of this sensor allowsusers to begin collecting data within minutes of removing the accelerometer from the box. In the interest of simplicity, only a portion of the capabilities of the sensor will be discussed in this guide. More in-depth information is available in the form of Tech Notes, the ICU User’s Manual, and the ICU Reference Manual, all available on the Spectrum Sensors & Controls website(www.specsensors.com, under Precision Inertial Products, Documentation and Downloads, Software Updates). For any additional questions, contact Spectrum Sensors & Controls, Inc., Precision Inertial Products.

Step 1. Unpacking the box(es)
The accelerometer is shipped in a hard plastic case. The case is packed in a shipping box with accessories such as programming adapters, cables, and power supplies (if ordered)inside the same box (see Image 1 below for identification of parts included when the PC Interface Kit and mounting adapter are ordered; USB to serial adapter sold separately). In addition to the accelerometer and accessories, several additional parts are included. A set of 4 screws in a vial and a hex wrench are included for attaching the mounting adapter to the accelerometer (see mounting adaptermanual for mounting instructions). There are also two screws and a pair of clips that are used to secure the 9-pin accelerometer connector to the programming adapter.

IMAGE 1: CONTENTS OF X5203AK0 (USB ADAPTER SOLD SEPARATELY)

Step 2. Connecting the accelerometer to a computer
Important! Spectrum Sensors & Controls approves only the use of cables and accessories ordered from the factory.The use of unapproved cables can irreparably damage the electronics inside the accelerometer. The following items are the accessories needed to connect a cabled accelerometer to a computer for configuration or data acquisition purposes. For instructions on configuring a terminal block version, consult the accelerometer manual included in the shipment. Included with the PC Interface kit: ProgrammingAdapter - The programming adapter is a gray box with connectors on both ends, The adapter converts the RS485 output signal from the sensor into an RS232 signal so the computer can process the information. RS232 cable - The RS232 cable connects a computer to the programming adapter. One end of the cable plugs into the RS232 port on the PC. The other end connects to the programming adapter. Note: Ifyou are connecting to a laptop or PC with only a USB port, you will need an RS232 to USB cable. Power Supply - The power supply plugs into the side of the programming adapter on one end and an electrical outlet on the other. Not included with the PC Interface kit: RS232 to USB Adapter - If the computer has no serial port, a USB adapter is available. Once the programming adapter, RS232 cable, andpower supply are connected as described, you are ready to configure the digital accelerometer.

IMAGE 2A: SETUP WITH SERIAL PORT

IMAGE 2B: SETUP WITH USB ADAPTER

Step 3. Starting the ICU software
Spectrum Sensors & Controls provides a software program called Instrument Configuration Utility (ICU) to configure digital accelerometers. The latest version of ICU and installation instructionsare available at www.specsensors.com, under Precision Inertial Products, Documentation and Downloads, Software Updates. You must install the software on your computer - it cannot be run from the website. ICU allows users to configure the sensor ranges and PCM stream, and calibrate the instrument. Use the instructions below to set up ICU to configure and collect data from the instrument. 1....