Measurement Computing BTH-1208LS Скачать руководство пользователя страница 28

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Measurement Computing Corporation

10 Commerce Way

Suite 1008

Norton, Massachusetts 02766

(508) 946-5100

Fax: (508) 946-9500

E-mail:

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

Содержание BTH-1208LS

Страница 2: ...eu of all other warranties expressed or implied including any implied warranty of merchantability or fitness for a particular application The remedies provided herein are the buyer s sole and exclusive remedies Neither Measurement Computing Corporation nor its employees shall be liable for any direct or indirect special incidental or consequential damage arising from the use of its products even i...

Страница 3: ...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 S...

Страница 4: ...r 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 Distributed By MicroDAQ LLC 603 746 5524 www MicroDAQ com ...

Страница 5: ...are 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 C...

Страница 6: ...ence 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 selectab...

Страница 7: ...Guide Introducing the BTH 1208LS 7 Functional block diagram BTH 1208LS functions are illustrated in the block diagram shown here Figure 1 Functional block diagram Distributed By MicroDAQ LLC 603 746 5524 www MicroDAQ com ...

Страница 8: ...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 deploy...

Страница 9: ...ng 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 th...

Страница 10: ... 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 de...

Страница 11: ...nalog data is continuously acquired and converted to digital values until you stop the scan When communicating over a Bluetooth connection the maximum continuous scan rate of 1024 S s is an aggregate rate The total acquisition rate for all channels cannot exceed 1024 S s The following table lists the scan rates when scanning from one to eight channels in Bluetooth mode Maximum continuous scan rate...

Страница 12: ...he acquired data to the host is still limited so the process can take several seconds Time must be allowed between scans for the acquisition AND the transfer of the data The maximum sampling rate is an aggregate rate The total sample rate using burst scan mode is 50 kS s per channel for any or all channels An error occurs if you exceed the FIFO capacity and acquire more than12 288 samples in BURST...

Страница 13: ... and hold the button again for 2 seconds Powered by USB host port or hub The power pairing button is disabled LEDs The Power LED indicates the power status of the device The Status LED indicates the communication status of the device LEDs cannot be disabled LED states are listed in the tables below Power and Status LED behavior Power LED Indication Steady green The device is powered by USB and the...

Страница 14: ...igital I Os DIO0 to DIO7 One external trigger input TRIG One external counter input CTR One external clock input AICKI One power output VO Six analog grounds AGND Four digital grounds GND Use 16 AWG to 30 AWG wire when makings to the screw terminals The single ended mode pinout is shown in Figure 3 Figure 3 Single ended mode pinout Distributed By MicroDAQ LLC 603 746 5524 www MicroDAQ com ...

Страница 15: ... ended configuration When configured for single ended input mode eight analog input channels are available Each analog input has 11 bit resolution due to restrictions imposed by the A D converter and offers a 10 V analog input range The input signal is referenced to signal ground AGND and is delivered through two wires Connect the wire carrying the signal to be measured to CHx Connect the second w...

Страница 16: ... channel gain queue list that is written to local memory on the device The channel gain queue list can contain up to up to 8 elements in single ended mode or four elements in differential mode The elements must be unique and listed in ascending order An example of a three element list is shown in the table below Sample channel gain queue list Element Channel Range 0 CH0 BIP10V 1 CH2 BIP5V 2 CH3 BI...

Страница 17: ...ity Inputs are pulled high by default to 3 3 V through 47 5 kΩ resistors on the circuit board The pull up voltage is common to all 47 5 kΩ resistors You can place an external pull up resistor on any of the DIO bits in order to limit source current to less than 50 mA which requires a 100 Ω resistor minimum A 2 kΩ or 5 kΩ resistor would be typically used allowing for a 1 mA current You can also use ...

Страница 18: ...analog channels The digital ground GND pins provide a common ground for the digital trigger counter and power terminals Power output The VO pin is a 3 3 volt output that can source up to 50mA that is supplied by the power source of the device You can use this terminal to power external devices or circuitry Caution The V0 pin is an output Do not connect to an external power supply or you may damage...

Страница 19: ...BTH 1208LS User s Guide Functional Details 19 Mechanical drawings Figure 7 Housing and circuit board dimensions Distributed By MicroDAQ LLC 603 746 5524 www MicroDAQ com ...

Страница 20: ... 5 2 5 V G 8 2 0 V G 10 1 25 V G 16 1 0 V G 20 Software selectable Throughput Note 2 Software paced 10 S s typ system dependent Bluetooth 250 S s typ system dependent USB Continuous scan 0 014 S s to 1024 S s Bluetooth 0 014 S s to 50 kS s USB Burst 0 014 S s to 50 kS s to 12K 12 288 sample FIFO Transfer rate to host is limited to 1024 S s Bluetooth Channel gain queue Software selectable 8 element...

Страница 21: ...e Accuracy LSB 10 V 4 0 Table 4 Accuracy components differential mode all values are Range of Reading Gain Error at FS mV Offset mV Accuracy at FS mV 20 V 0 2 40 9 766 49 766 10 V 0 2 20 9 766 29 766 5 V 0 2 10 9 766 19 766 4 V 0 2 8 9 766 17 766 2 5 V 0 2 5 9 766 14 766 2 V 0 2 4 9 766 13 766 1 25 V 0 2 2 5 9 766 12 266 1 V 0 2 2 9 766 11 766 Table 5 Accuracy components single ended mode all valu...

Страница 22: ...mponents all values are Range of FSR Gain Error at FS mV Offset mV Accuracy at FS mV 0 V to 2 5 V 0 16 typ 1 44 max 4 0 typ 36 0 max 1 0 typ 9 0 max Note 4 5 0 typ 45 0 max Note 5 Zero scale offsets may result in a fixed zero scale error producing a dead band digital input code region In this case changes in digital input code at values less than 0x040 may not produce a corresponding change in the...

Страница 23: ...sidering the external pull up resistor value and the resultant pull up voltage produced at the load Note 8 Does not include the additional leakage current contribution through the internal or any external pull up resistor External trigger Table 12 Digital trigger specifications Parameter Specification Trigger source Note 7 External digital TRIG_IN terminal Trigger mode Software configurable for ed...

Страница 24: ...l Resolution 32 bits Maximum input frequency 1 MHz High pulse width 500 ns min Low pulse width 500 ns min Schmitt trigger hysteresis 0 76 V typ 0 4 V min 1 2 V max Input high voltage threshold 1 74 V typ 1 3 V min 2 2 V max Input high voltage limit 5 5 V absolute max Input low voltage threshold 0 98 V typ 0 6 V min 1 5 V max Input low voltage limit 0 5 V absolute min 0 V recommended min Memory Tab...

Страница 25: ...pecified amount of time The timer can be disabled or set to a value from 1 255 minutes Bluetooth Table 18 Bluetooth specifications Parameter Specification Device type Bluetooth 2 1 Device compatibility Backwards compatible with Bluetooth 2 0 1 2 and 1 1 Bluetooth profile Serial Port Profile SPP Note 10 The Bluetooth radio is disabled when the device is connected to a USB host USB Table 19 USB spec...

Страница 26: ...ound 13 AOUT0 Analog output 0 29 AICKI External pacer clock input 14 AGND Analog ground 30 CTR Counter input 15 AOUT1 Analog output 1 31 TRIG Digital trigger input 16 AGND Analog ground 32 GND Digital ground Single ended mode pinout Table 24 Screw terminal pinout Pin Signal name Pin description Pin Signal name Pin description 1 CH0H Analog input 0 17 DIO0 Digital I O bit 0 2 CH0L Analog input 1 18...

Страница 27: ...1000 4 3 2010 Radiated Electromagnetic Field immunity IEC 61000 4 4 2012 Electric Fast Transient Burst Immunity IEC 61000 4 5 2005 Surge Immunity IEC 61000 4 6 2008 Radio Frequency Common Mode Immunity IEC 61000 4 11 2004 Voltage Interrupts Supplementary Information This product meets the EMC requirements of the United States FCC Part 15 Class A Canada ICES 001 Group 1 Class A and Australia New Ze...

Страница 28: ...ement 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 Distributed By MicroDAQ LLC 603 746 5524 www MicroDAQ com ...

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