Related Manuals for Measurement Computing BTH-1208LS-OEM
Summary of Contents for Measurement Computing BTH-1208LS-OEM
- Page 1 BTH-1208LS-OEM Wireless Multifunction DAQ Device User's Guide Document Revision 5A December 2014 © Copyright 2014...
- Page 2 Other product and company names mentioned herein are trademarks or trade names of their respective companies. © 2014 Measurement Computing Corporation. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, mechanical, by photocopying, recording, or otherwise without the prior written permission of Measurement Computing Corporation.
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Page 3: Table Of Contents
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-OEM ...................... 6 Functional block diagram ........................... 7 Chapter 2 Installing a BTH-1208LS-OEM ......................8 Unpacking................................ - Page 4 BTH-1208LS-OEM User's Guide Counter ................................23 Memory ................................23 Microcontroller ..............................23 Power ................................24 Bluetooth ................................24 USB .................................. 24 Environmental ..............................24 Mechanical ............................... 25 Signal connectors .............................. 25 Analog signals (J1) ................................25 Digital signals (J2) ................................25 Bulkhead signals (J3) ...............................26...
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Page 5: Preface
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-OEM is available on our website at www.mccdaq.com. You can also contact Measurement Computing Corporation with specific questions. -
Page 6: Introducing The Bth-1208Ls-Oem
Caution! There are no product safety, electromagnetic compatibility (EMC), or CE marking compliance claims made for the BTH-1208LS-OEM. The BTH-1208LS-OEM is intended for use as a component of a larger system. MCC can help developers meet their compliance requirements. The end product supplier, however, is responsible for conforming to any and all compliance requirements. -
Page 7: Functional Block Diagram
BTH-1208LS-OEM User's Guide Introducing the BTH-1208LS-OEM Functional block diagram BTH-1208LS-OEM functions are illustrated in the block diagram shown here. Analog Output 2 Channels Analog Input Bluetooth 8 Single-Ended Channels (11-bit) Module 4 Differential Channels (12-bit) Microcontroller Digital I/O Event Counter... -
Page 8: Installing A Bth-1208Ls-Oem
The BTH-1208LS-OEM cannot be paired when powered by a USB host device. To pair the BTH-1208LS-OEM 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 11 for the location of device components referenced in this section): Make sure the host device is configured to host a Bluetooth device. -
Page 9: Installing The Hardware In Usb Mode (Windows Only)
Press and hold the power/pairing button for two seconds to remove the device from pairing mode. Once the BTH-1208LS-OEM is paired to the host device, run an application that communicates with the device (such as InstaCal or a UL for Android example program) to establish a connection. The... -
Page 10: Chapter 3 Functional Details
Chapter 3 Functional Details Analog input acquisition modes The BTH-1208LS-OEM can acquire analog input data in three different modes – software paced, hardware paced, and BURSTIO. Software paced mode In software paced mode you can acquire one analog sample at a time. You initiate the A/D conversion by calling a software command. -
Page 11: Burstio
BURSTIO When using BURSTIO, the BTH-1208LS-OEM can acquire data at the maximum throughput of 47kS/s when connected in Bluetooth mode. BURSTIO doesn’t offer any advantage in USB mode, since these rates are supported for BLOCKIO in USB mode. -
Page 12: Power/Pairing Button
The term pairing refers to one function of the button – to put the device in pairing mode so it can establish an association between the Bluetooth radio on the host device and the BTH-1208LS-OEM radio. Button functions are listed in the table below. -
Page 13: Connector J1
BTH-1208LS-OEM User's Guide Functional Details Connector J1 Header connector J1 provides connections for the analog inputs, analog outputs, and analog ground reference. Refer to Figure 5 on page 17 for the location and orientation of J1. Four-channel differential mode Signal name... -
Page 14: Signal Connections
BIP5V BIP10V When a scan begins with the gain queue enabled, the BTH-1208LS-OEM reads the first element, sets the appropriate channel number and range, and then acquires a sample. The properties of the next element are then retrieved, and another sample is acquired. This sequence continues until all elements in the gain queue have been selected. -
Page 15: Analog Output
Each analog output channel has an output range of 0 V to 2.5 V. Throughput is system-dependent. The D/A is software paced. External clock input The BTH-1208LS-OEM provides one external clock input for the analog input pacer. You can connect an external clock signal to on connector J2. -
Page 16: Bulkhead Signals
USB host or power supply is present. Use the CHARGE_LED– pin in combination with the Vbus pin for an external charging LED. The series resistor is already on the BTH-1208LS-OEM; only a LED is required. Trigger input pin on connector J2 is an external digital trigger input that you can configure for either TRIG_IN rising/falling edge, or high/low level. -
Page 17: Ground
Caution! The pin is an output. Do not connect to an external power supply or you may damage the BTH-1208LS-OEM and possibly the computer. For more information about signal connections For more information about analog and digital signal connections, refer to the Guide to DAQ Signal Connections at www.mccdaq.com/pdfs/DAQ-Signal-Connections.pdf. -
Page 18: Specifications
Chapter 4 Specifications All specifications are subject to change without notice. Typical for 25°C unless otherwise specified. Specifications in italic text are guaranteed by design. Analog input Table 1. Analog input specifications Parameter Condition Specification A/D converter type Successive approximation type Input voltage range for linear operation CHx to GND Single-ended mode: ±10 V max... -
Page 19: Accuracy
BTH-1208LS-OEM User's Guide Specifications Input current is a function of applied voltage on the analog input channels. For a given input Note 1: voltage, Vin, the input leakage is approximately equal to (8.181 * Vin – 12) µA. Maximum throughput when scanning is machine dependent. -
Page 20: Noise Performance
BTH-1208LS-OEM User's Guide Specifications Noise performance Table 6. Noise performance, differential mode Range Typical counts LSBrms ±20 V 0.45 ±10 V 0.45 ±5 V 0.45 ±4 V 0.61 ±2.5 V 0.76 ±2 V 1.06 ±1.25 V 1.52 ±1 V 1.82 Table 7. -
Page 21: Digital Input/Output
BTH-1208LS-OEM User's Guide Specifications Digital input/output Table 11. Digital I/O specifications Parameter Specification Digital type 3.3 V open drain Output value mapping 0 written: output drives to DGND 1 written: output is pulled up to 3.3 V via internal resistor... -
Page 22: External Trigger
BTH-1208LS-OEM User's Guide Specifications External trigger Table 12. Digital trigger specifications Parameter Specification Trigger source External digital; TRIG terminal Trigger mode Software configurable for edge or level sensitive, rising or falling edge, high or low level. Trigger latency 10 µs max Trigger pulse width 1 µs min... -
Page 23: Counter
BTH-1208LS-OEM User's Guide Specifications Counter Table 14. Counter specifications Parameter Specification Pin name Counter type Event counter Number of channels Schmitt trigger, 47 kΩ pull-down to ground, rising edge triggered Input type Input source CTR screw terminal Resolution 32 bits... -
Page 24: Power
BTH-1208LS-OEM User's Guide Specifications Power Table 17. Power specifications Parameter Condition Specification Supply current, USB source During enumeration < 100 mA After USB enumeration or < 500 mA connected to USB charger / supply Battery power (Note 8) Two AA or two AAA cells... -
Page 25: Mechanical
BTH-1208LS-OEM User's Guide Specifications Mechanical Table 21. Mechanical specifications Parameter Specification Dimensions (L × W × H) 99.06 × 68.58 × 14.61 mm (3.90 × 2.70 × 0.58 in.) USB cable length 3 m (9.84 ft) max User connection length 3 m (9.84 ft) max... -
Page 26: Bulkhead Signals (J3)
BTH-1208LS-OEM User's Guide Specifications Bulkhead signals (J3) Table 26. Bulkhead signals Signal name Pin description Signal name Pin description BATT+ Battery input positive BATT- Battery input negative (2 AA/AAA cells) BATT_MID Battery center tap Ground 10 kΩ thermistor positive 10 kΩ thermistor negative... - Page 27 Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton, Massachusetts 02766 (508) 946-5100 Fax: (508) 946-9500 E-mail: info@mccdaq.com www.mccdaq.com...
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