Hioki MEMORY HiLOGGER LR8450 User Manual

376
Measuring Strain
Bending stress
Gage method Bridge circuit diagram Connection to U8554 or LR8534
2-gage method
(adjacent sides)
(bending strain)
Applied voltage
E
Output
voltage
e
e = 2
ε
In this connection method, the strain gage
is a󰀩xed to the top and bottom surfaces.
This approach makes it possible to measure
bending strain alone, without the e󰀨ects of
tension or compression strain. Use a scaling
conversion ratio slope of 1/2.
DIP switch
ON ON OFF
1 2 3
Rg
1
Rg
2
4-gage method
(bending strain)
Applied voltage
E
Output
voltage
e
e = 4
ε
This connection method is not a󰀨ected by
temperature changes of the measurement
target or tension/compression strain. Use a
scaling conversion ratio slope of 1/4.
DIP switch
ON OFF OFF
1 2 3
Rg
4
Rg
2
Rg
1
Rg
3
HIOKI LR8450A964-03
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Hioki MEMORY HiLOGGER LR8450 Specifications

General

Storage Media	SD card (up to 32 GB)
Measurement Types	Voltage, Temperature, Resistance, Strain, Pulse, Logic
Sampling Rate	1 ms to 1 hour
Interface	LAN, USB, SD card slot
Power Supply	100 to 240 V AC, 12 V DC
Resolution	16-bit
Voltage Range	±10 mV