Loadstar Sensors DI-1000 User Manual Download Page 1

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48501 Warm Springs Blvd

Suite 109

Fremont, CA 94539

(510) 623-9600

www.loadstarsensors.com

DI-1000

High Precision Resistive Load Cell to USB

Adapter

Users Guide

Loadstar Sensors, Inc.

Summary of Contents for DI-1000

Page 1: ...rm Springs Blvd Suite 109 Fremont CA 94539 510 623 9600 www loadstarsensors com DI 1000 High Precision Resistive Load Cell to USB Adapter Users Guide Copyright 2008 2014 Loadstar Sensors Inc All rights reserved ...

Page 2: ... of this document or of any information contained herein Should Loadstar Sensors and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the separate agreement shall override SAFETY INFORMATION General Do not use this product in any manner not specified by the manufacturer The protective features...

Page 3: ... failure Physically damaged units should be returned to the factory for service and repair ROHS WEEE COMPLIANCE STATEMENT EUROPE Directive 2002 95 EC Restriction of the Use of Certain Hazardous Substances in Electrical Electronic Equipment as amended by EU Commission Decision 2005 95 EC This product is RoHS Compliant 2005 95 EC RoHS Compliant 2005 95 EC means that the product or part Product does ...

Page 4: ...rangements for the disposal of WEEE Business users are advised to ensure that WEEE which is not suitable for reuse or recycling be disposed of properly via approved authorized treatment facilities The Producer in your country may be able to assist you Loadstar sensors is dedicated to minimizing the impact our products have on the environment and to comply with the WEEE Directive ROHS in China Elec...

Page 5: ...RATING THE DI 1000 15 3 1 Setting the calibration mode 15 3 2 Millivolt Calibration 15 3 3 2 Point Calibration 15 4 ADDITIONAL CONSIDERATIONS 17 4 1 Effect of Improper Grounding on typical resolution 17 4 2 Noise nV vs Amplifier Gain 17 4 3 Effect of Sample Rate on typical resolution bits 17 5 DI 1000 COMMAND SUMMARY 18 5 1 1 UNIT 18 5 1 2 18 5 1 3 ID 18 5 1 4 19 5 1 5 19 5 1 6 19 5 1 7 19 5 1 8 2...

Page 6: ...ections 8 Figure 4 Mechanical Long Side View switch side 9 Figure 5 Mechanical End View Power adapter and host connector 9 Figure 6 Removable Wiring Connector End Load cell connection 10 Figure 8 Six Wire Load cell Wiring Schematic 11 Figure 9 Typical RMS noise Values nV vs sample rate 17 Figure 10 Typical noise free equivalent resolution bits 17 ...

Page 7: ...ersion offers the same high precision load cell to PC interface With consistent remote programming built in LoadVUE software compatibility and low power operation either DI 1000 device is sure to play a key role in your high performance measurement system Basic Module Features May be powered from USB Host if connected No need for AC adapter for most load cells Standards Compliant 5 00V load cell e...

Page 8: ...er Guide Page 8 25 P N 033 01591 Rev 6 The following pictures of the DI 1000 show the external connections 1 1 External DI 1000 Connections Figure 1 Load cell Wiring Block Connections Figure 2 Power and Host connections ...

Page 9: ...er Guide Page 9 25 P N 033 01591 Rev 6 1 2 DI 1000 Mechanical Dimensions Figure 3 DI 1000 Mechanical Top View Figure 4 Mechanical Long Side View switch side Figure 5 Mechanical End View Power adapter and host connector ...

Page 10: ...Designed for ease of use the DI 1000 is easy to bring up The following steps should get you up and running quickly 2 1 Plug in the AC power adapter to your DI 1000 2 2 Attach your load cell to the DI 1000 Both 4 wire and 6 wire load cell wiring diagrams for the DI 1000 are shown in the following figures Figure 7 Four Wire Load Cell Wiring Schematic ...

Page 11: ... cell you will need to add an external jumper between pins 1 and 2 EXsens and EX as well as between pins 5 and 6 EXsens and EX Figure 8 Six Wire Load cell Wiring Schematic We ve included a handy reference chart below that you can use to help determine how to correctly wire your load cell to the DI 1000 wiring connector ...

Page 12: ...oscale Red Black Green White Bare Tie to EX Tie to EX Evergreen Green Black White Red Bare Tie to EX Tie to EX General Sensor Red Black Green White Bare Tie to EX Tie to EX HBM Green Black White Red Yellow Tie to EX Tie to EX HBM PLC SBE Red Black Green White Yellow Tie to EX Tie to EX Interface Red Black Green White Bare Tie to EX Tie to EX Kubota Red White Green Blue Yellow Tie to EX Tie to EX L...

Page 13: ...dVUE application For information on LoadVUE please refer to the manual which ships with that software CD for more details This document will focus on the virtual serial interface This approach may be easily adapted to user programs and is very flexible Please install the drivers for the DI 1000 using the included iLoad Digital USB Driver disc or if you have purchased LoadVUE software from the Load...

Page 14: ... calibration mode to be used for load measurements You can set mV V calibration by entering CAL m Two point calibration mode is selected by typing CAL 2 Assuming you have already entered a calibration see the next section for the selected mode you may now monitor the load on the load cell type WC at the terminal window Continuous weight output updates end when a carriage return is pressed ...

Page 15: ...resents the known mV V calibration number for the load cell The DI 1000 echoed the value of the mV V number you typed in to confirm that it has been accepted The calibration value is retained until it is again changed by the user even through DI 1000 power cycles 3 3 2 Point Calibration Two point calibration can be used if you have the ability to load and unload your load cell with known weights o...

Page 16: ...uide Page 16 25 P N 033 01591 Rev 6 The DI 1000 responds with a number and Calibration complete Your two point calibration has been stored The number reported represents the mV V of the load cell as computed by the DI 1000 ...

Page 17: ...ONAL CONSIDERATIONS 4 1 Effect of Improper Grounding on typical resolution 4 2 Noise nV vs Amplifier Gain Figure 9 Typical RMS noise Values nV vs sample rate 4 3 Effect of Sample Rate on typical resolution bits Figure 10 Typical noise free equivalent resolution bits ...

Page 18: ...B to set units TO POUNDS UNIT to display currently set units 5 1 2 Function Sets returns the load capacity of the attached load cell Summary Sets or returns the total load capacity of the load cell as a floating point number Should be entered in the currently selected value of UNIT Example UNIT KG example sets units to KILOGRAMS LC 500 sets total load capacity to 500 Kg LC displays currently set l...

Page 19: ...ng of device input gain Valid gains are 1 2 4 8 16 32 and 64 Factory default is 64 Example GAIN 32 5 1 6 SPS Function Sets returns ADC sample rate Summary Sets returns the currently selected number of ADC samples second Remember Accuracy increases with fewer samples second so always choose the slowest rate your application can tolerate Valid samples rates second are 7 5 15 30 60 120 240 480 960 19...

Page 20: ...bration procedure Summary Begins the 2 point calibration procedure Follow the prompts from the DI 1000 to complete the calibration as described in the section on calibration above Example 2PCAL 250 5 1 10 W Function Displays the current weight Summary Displays the current measured weight in the currently active units Example W 277 162536 A 5 1 11 WC Function Continuously outputs current weight Sum...

Page 21: ...ry This is similar to the W command except that the unit is also reported by the DI 1000 Example WU 0 363733 LB 5 1 13 R Function Return RAW ADC value Summary Example R 5 1 14 SETTINGS Function Returns all current setting values Summary Example SETTINGS 5 1 15 Function Returns the command summary Summary Example ...

Page 22: ...urs depending on the attached loadcell impedance and the frequency of host data queries For longer periods of time an external battery for example a 12V Gel Battery can easily be used to extend the operational life to any desired length For those applications that can support a physical AC power adapter connection no additional restrictions on runtime query rate or loadcell impedance apply 6 1 Bef...

Page 23: ...he virtual COM port of the DI 1000 Dongle Next open Hyperterminal and create a new connection corresponding to your attached DI 1000 device Select the COM port previously determined to correspond to the DI 1000 Set the Baud Rate parity data bits and number of stop Bits as 9600 N 8 1 If you have a DI 1000U HS high speed modem set the baud rate to 230400 ...

Page 24: ...TER pressed You many now type ASCII commands to the DI 1000 to remotely monitor and control the attached sensors You may press at any time to see the available command list Please continue at section 6 4 Continuation of the Quick Start The quick start process continues the same as in section 3 7 above with the wired version Please continue there ...

Page 25: ... Temperature 20 to 85C 5 to 185F no battery 20 to 60C 5 to 140F with internal battery Warning NEVER EXCEED 60C when internal battery is installed Humidity 5 to 85 RH Non Condensing Voltage 6 to 12 VDC Basic Edition 6 to 32 VDC Battery Edition Power 1 W Vibration Not to exceed 4 mm displacement at 16 7 Hz for 60 mins Shock Not greater than a 20 cm drop onto a hard wooden surface Enclosure Construct...

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