Measurement Computing BTH-1208LS Manual de usuario

BTH-1208LS

Wireless Multifunction DAQ Device

Document Revision 1

August 2013

User's Guide

Distributed By MicroDAQ, LLC 603-746-5524 www.MicroDAQ.com

HM BTH-1208LS

Your new Measurement Computing product comes with a fantastic extra —

Management committed to your satisfaction!

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the protection of the most comprehensive warranties and unmatched phone tech support. It’s the embodiment of our mission:

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Notice

Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use

in life support systems and/or devices without prior written consent from Measurement Computing Corporation.

Life support devices/systems are devices or systems that, a) are intended for surgical implantation into the body, or

b) support or sustain life and whose failure to perform can be reasonably expected to result in injury. Measurement

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Table of Contents

Preface

About this User's Guide .......................................................................................................................5

What you will learn from this user's guide .........................................................................................................5

Conventions in this user's guide .........................................................................................................................5

Where to find more information.........................................................................................................................5

Chapter 1

Introducing the BTH-1208LS................................................................................................................6

Device features...................................................................................................................................................6

Functional block diagram...................................................................................................................................7

Chapter 2

Installing a BTH-1208LS .......................................................................................................................8

What comes with your shipment?.......................................................................................................................8

Hardware .......................................................................................................................................................................... 8

Software............................................................................................................................................................................ 8

Documentation.................................................................................................................................................................. 8

Unpacking...........................................................................................................................................................8

Installing the software ........................................................................................................................................8

Installing in a Windows environment............................................................................................................................... 8

Running and deploying apps in an Android environment ..................................................................................8

Pairing with the host device................................................................................................................................8

Installing the hardware in USB mode (Windows only)......................................................................................9

Configuring Bluetooth settings...........................................................................................................................9

Calibrating the hardware...................................................................................................................................10

Factory calibration...........................................................................................................................................................10

Field calibration...............................................................................................................................................................10

Chapter 3

Functional Details ...............................................................................................................................11

Analog input acquisition modes .......................................................................................................................11

Software paced mode.......................................................................................................................................................11

Continuous scan mode.....................................................................................................................................................11

Burst scan ........................................................................................................................................................................12

BTH-1208LS components................................................................................................................................12

USB connector.................................................................................................................................................................12

Power/pairing button........................................................................................................................................................13

LEDs................................................................................................................................................................................13

Screw terminals................................................................................................................................................................14

Signals ..............................................................................................................................................................15

Analog input....................................................................................................................................................................15

Analog output ..................................................................................................................................................................16

External clock input.........................................................................................................................................................16

Digital I/O........................................................................................................................................................................17

External pull-up capability...............................................................................................................................................17

Trigger input....................................................................................................................................................................18

Counter input...................................................................................................................................................................18

Ground.............................................................................................................................................................................18

Power output....................................................................................................................................................................18

Mechanical drawings........................................................................................................................................19

Chapter 4

Specifications......................................................................................................................................20

Analog input.....................................................................................................................................................20

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BTH-1208LS User's Guide

Accuracy..........................................................................................................................................................................21

Noise performance...........................................................................................................................................................21

Analog output...................................................................................................................................................22

Digital input/output...........................................................................................................................................22

External trigger.................................................................................................................................................23

External clock input..........................................................................................................................................23

Counter.............................................................................................................................................................24

Memory ............................................................................................................................................................24

Microcontroller.................................................................................................................................................24

Power................................................................................................................................................................25

Bluetooth ..........................................................................................................................................................25

USB ..................................................................................................................................................................25

Environmental ..................................................................................................................................................25

Mechanical .......................................................................................................................................................25

Signal connector...............................................................................................................................................26

Screw terminal pinout.......................................................................................................................................26

Differential mode pinout..................................................................................................................................................26

Single-ended mode pinout ...............................................................................................................................................26

Declaration of Conformity..................................................................................................................27

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Preface

About this User's Guide

What you will learn from this user's guide

This user's guide describes the Measurement Computing BTH-1208LS wireless data acquisition device and lists

device specifications.

Conventions in this user's guide

For more information

Text presented in a box signifies additional information and helpful hints related to the subject matter you are

reading.

Caution! Shaded caution statements present information to help you avoid injuring yourself and others,

damaging your hardware, or losing your data.

bold text Bold text is used for the names of objects on a screen, such as buttons, text boxes, and check boxes.

italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase.

Where to find more information

Additional information about the BTH-1208LS is available on our website at www.mccdaq.com. You can also

contact Measurement Computing Corporation by phone, fax, or email with specific questions.

Knowledgebase: kb.mccdaq.com

Phone: 508-946-5100 and follow the instructions for reaching Tech Support

Fax: 508-946-9500 to the attention of Tech Support

Email: techsupport@mccdaq.com

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Chapter 1

Introducing the BTH-1208LS

The BTH-1208LS is a multifunction data acquisition device that communicates using Bluetooth® wireless

technology.

The device is supported under the following operating systems:

Microsoft® Windows® 8/7/Vista® (SP2)/XP (SP3) (32-bit or 64-bit)

Android™ 3.1 or later

The Bluetooth radio host used with the device must support Bluetooth 2.0 or later. The following Bluetooth

stack protocols are supported on Windows:

Microsoft Bluetooth stack

Broadcom ® Bluetooth stack (not supported by Windows XP SP3)

The device supports USB 2.0 full-speed when connected to a USB port. The device is also compatible with

USB 1.1 ports; however, the speed of the device may be limited when using a USB 1.1 port due to the

difference in transfer rates on USB 1.1 versions of the protocol (low-speed and full-speed).

Device features

The BTH-1208LS provides the following features:

Eight 11-bit single-ended (SE) or four 12-bit differential (DIFF) analog input channels

1 kS/s max sampling rate in Bluetooth continuous scan mode

50 kS/s sampling rate in Bluetooth burst I/O mode and when communicating over USB connection

Software-selectable analog input ranges of ±10 V (SE), and ±20 V, ±10 V, ±5 V, ±4 V, ±2.5 V, ±2.0 V,

±1.25 V, and ±1.0 V (DIFF).

Two 12-bit analog outputs

Eight individually-configurable digital I/O channels

One 32-bit event counter

One external digital trigger input

One external clock input

Two screw terminal connectors for field wirings

Powered by two AA batteries (standard or rechargeable) when in Bluetooth mode; can also be powered by

a USB power supply in Bluetooth mode or from the USB host in USB mode

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BTH-1208LS User's Guide Introducing the BTH-1208LS

Functional block diagram

BTH-1208LS functions are illustrated in the block diagram shown here.

Figure 1. Functional block diagram

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Chapter 2

Installing a BTH-1208LS

What comes with your shipment?

Verify that the following hardware components are included in the shipment:

Hardware

BTH-1208LS

USB cable

Two rechargeable AA NiMh batteries

Software

MCC DAQ CD

Documentation

MCC DAQ Software Quick Start Guide

The Quick Start Guide booklet provides an overview of the MCC DAQ software you received with the

device, and includes information about installing the software. Please read this booklet completely before

installing any software or hardware.

BTH-1208LS Quick Start

Unpacking

As with any electronic device, take care while handling to avoid damage from static electricity. Before

removing the BTH-1208LS from its packaging, ground yourself using a wrist strap or touch either the computer

chassis or other grounded object to eliminate any stored static charge.

If the device is damaged, notify Measurement Computing Corporation immediately.

Installing the software

Installing in a Windows environment

Refer to the Quick Start Guide that ships with your device for instructions on installing the MCC DAQ software

in a Windows environment. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-

Software-Quick-Start.pdf.

Running and deploying apps in an Android environment

For instructions on deploying and running apps in an Android environment, refer to the UL for Android

Example Projects topic in the Universal Library for Android Help that installs with the UL for Android

software library on the MCC DAQ CD.

Pairing with the host device

Pairing creates a bond between a Bluetooth device and a host device. A host device can be either a Windows-

based computer or an Android device (tablet, phone, or mini-PC).

The BTH-1208LS must be paired with the host device before it can establish a wireless connection and transmit

acquired data to the device. A BTH-1208LS only has to be paired once with a particular host device.

Distributed By MicroDAQ, LLC 603-746-5524 www.MicroDAQ.com

BTH-1208LS User's Guide Installing a BTH-1208LS

The BTH-1208LS can be paired or connected when powered by:

batteries (standard or rechargeable)

an external USB power supply

The BTH-1208LS cannot be paired when powered by a USB host device.

To pair the BTH-1208LS as a Bluetooth device, make sure the device is not connected to a USB host, and

complete the following steps (refer to Figure 2 on page 12 for the location of device components referenced in

this section):

1. Make sure the host device is configured to host a Bluetooth device. Refer to host device documentation to

learn how to enable Bluetooth and how to search for and pair with Bluetooth devices.

2. If powered by batteries, press and hold the button for at least five seconds to power on the device and put it

into pairing mode.

If powered by a USB power supply, press and hold the button for at least three seconds to put it into

pairing mode.

When the Power and Status LEDs blink alternately, the device is in pairing mode and is ready to pair with

the host device.

3. Select the Bluetooth device setup in the host device OS software, and then select the BTH-1208LS when it

displays. Refer to the Bluetooth documentation of your host device to learn how to pair it with a Bluetooth

device.

For example, in Windows, select Bluetooth Devicefrom the Control Panel, and then double-click on

BTH-1208LS-xxxx in the Add a device dialog box (xxxx are the last four digits of the device serial

number. You may need to wait a few seconds for the device to display.

4. If host device requests a passkey, PIN or pairing code, enter the default value for the device (0000).

5. Press and hold the power/pairing button for two seconds to remove the device from pairing mode.

Once the BTH-1208LS is paired to the host device, run an application that communicates with the device (such

as InstaCal) to establish a connection. The Status LED turns on to indicate a Bluetooth connection is

established.

Note 1: Measurement Computing recommends that you connect one of the digital grounds (GND) to earth

ground to reduce the chance of the BTH-1208LS unexpectedly powering down due to electrostatic

discharge.

Installing the hardware in USB mode (Windows only)

The driver needed to run the BTH-1208LS device is installed when you install the software. Therefore, you

need to install the software package you plan to use before you install the hardware. For operation on a

Windows operating system, Measurement Computing recommends that you run Windows Update to update

your operating system with the latest USB drivers.

Connect the USB cable to an available USB port on the computer or to an external USB hub connected to the

computer. Connect the other end of the USB cable to the USB connector on the device. No external power is

required.

Configuring Bluetooth settings

All Bluetooth settings except for the pairing code can be changed when the BTH-1208LS is either physically or

wirelessly connected to the host device. The pairing code can only be changed when the BTH-1208LS is

physically connected to the host device.

You can configure the following Bluetooth settings on the BTH-1208LS through software. For example, if you

are using the device in a Windows environment, you can configure these settings with InstaCal.

Pairing code – Four digit code that identifies the BTH-1208LS to the host device (default = 0000). The

pairing code cannot be changed when the BTH-1208LS is connected wirelessly to the host device.

Distributed By MicroDAQ, LLC 603-746-5524 www.MicroDAQ.com

BTH-1208LS User's Guide Installing a BTH-1208LS

Bluetooth connection status notifications – You can set values that indicate when the device is

connected over Bluetooth, and when the Bluetooth connection terminates. Connected and disconnected

values can be set for digital outputs, analog output channel 0, and analog input channel 1

Auto shutdown – When the device is powered by batteries, you can configure the device to power down a

specified amount of time after the Bluetooth connection terminates.

Battery charging – When the device is powered by rechargeable batteries, you can configure the device to

recharge batteries from the USB power supply when connected over Bluetooth.

Calibrating the hardware

Factory calibration

The Measurement Computing Manufacturing Test department performs the initial factory calibration. Return

the device to Measurement Computing Corporation when calibration is required. The recommended calibration

interval is one year.

Field calibration

Field calibration is not supported.

Distributed By MicroDAQ, LLC 603-746-5524 www.MicroDAQ.com

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