Accsense VersaLog Data Loggers User’s Manual Page 3
TABLE OF CONTENTS
ABOUT THIS MANUAL ................................................................................................................ 1
LIMITS OF LIABILITY AND DISCLAIMER OF WARRANTY: ................................................................ 1
COPYRIGHT AND TRADEMARKS ...................................................................................................... 1
1. INTRODUCTION........................................................................................................................ 6
1.1 FEATURES OF THE LOGGER ........................................................................................................ 6
1.2 APPROVALS ............................................................................................................................... 6
1.3 CARE OF THE LOGGER ............................................................................................................... 7
1.4 IDENTITY OF THE LOGGER ......................................................................................................... 7
1.5 BATTERY ................................................................................................................................... 7
1.6 RECALIBRATION ........................................................................................................................ 8
1.7 SAFETY WARNING .................................................................................................................... 8
Maximum Input Voltage Range ................................................................................................. 8
Maximum Input Current Range ................................................................................................. 8
External Power Supply .............................................................................................................. 8
Grounding .................................................................................................................................. 8
2. HARDWARE & MECHANICAL DIMENSION ..................................................................... 9
Logger Diagram: ....................................................................................................................... 9
3. CHANNELS AND SENSOR CONNECTIONS ...................................................................... 10
VL-DCV-2 – VOLTAGE INPUTS, PROGRAMMABLE RANGE .......................................................... 10
Channel and Sensor Specifications: ........................................................................................ 11
VL-DCC-HR – CURRENT INPUTS ................................................................................................. 11
Channel and Sensor Specifications: ........................................................................................ 12
VL-DCVC-HR – VOLTAGE & CURRENT INPUTS, RANGE PROGRAMMABLE ................................ 12
Channel and Sensor Specifications: ........................................................................................ 13
VL-DCVC – VOLTAGE & CURRENT INPUTS, RANGE PROGRAMMABLE ....................................... 13
Channel and Sensor Specifications: ........................................................................................ 14
VL-TC – THERMOCOUPLE INPUTS, RANGE PROGRAMMABLE....................................................... 14
Channel and Sensor Specifications: ........................................................................................ 15
Measure Temperature:............................................................................................................. 15
VL-TH – THERMISTOR / RESISTOR INPUTS ................................................................................... 16
Channel and Sensor Specifications: ........................................................................................ 17
Measure Resistance: ................................................................................................................ 17
Measure Temperature:............................................................................................................. 17
VL-BR-- EXCITATION/SENSE INPUT, VOLTAGE INPUT, FIXED RANGE....................... 20
What is a Strain Gauge ............................................................................................................ 21
Quarter Bridge Circuit: ........................................................................................................... 21
Half Bridge Circuit: ................................................................................................................. 21
Full Bridge Circuit: ................................................................................................................. 22
Connect Strain Gauge to a Data Logger ................................................................................. 22
Channel and Sensor Specifications: ........................................................................................ 25
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