3115f 12390 strain gauge cylinder testing hardened concrete 2 0

STRAIN GAUGE CYLINDERS (HARDENED CONCRETE TESTING)

Reference : 3115F-12390

Standard reference force transducers specially designed for checking concrete testing machines according to the EN 12390-4 or standard DIN 51302-2.

o Allows the homogeneity of the repartition of the forces generated to be checked by verifying:
- self-alignment and restraint on movement of the upper plate
- alignment of the machine's component parts
o Standard dimensions
o 4 independent full bridges at 90°
o Protection class: IP65
o Material: nickel-plated alloy steel
o Cable length: 4 x 6 m (other lengths available on request)

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	12390	1
Relative reversibility error (% M.V.**)	-	<± 0.3
Relative repeatability error with rotation (% M.V.**)	-	<± 0.2
Relative repeatability error without rotation (% M.V.**)	-	<± 0.1
Stabilization time after power excitation supply (s)	200...600	200...600
Creep error over 30 min. (% F.S.*)	<± 0.25	<± 0.1
Zero shift after loading (% F.S.*)	<± 0.05	<± 0.05
Reference temperature (°C)	20	20
Compensated temperature range (°C)	0...+30	-10...+45
Service temperature range (°C)	-25...+70	-25...+70
Storage temperature range (°C)	-50...+85	-50...+85
Temperature coefficient of the sensitivity (% F.S.*/10°C)	0.05	<± 0.035
Temperature coefficient of zero signal (% F.S.*/10°C)	0.05	<± 0.03
Zero balance (mV/V)	0.02	± 0.02
Nominal sensitivity (mV/V)	1.5	1.5
Input resistance (ohm(s))	350 or 700 ± 2	350 or 700 ± 2
Output resistance (ohm(s))	350 or 700 ± 2	350 or 700 ± 2
Insulation resistance (50 V) (Mohm(s))	>5000	> 5000
Reference excitation voltage (VDC)	10	10
Permissible nominal range of excitation voltage (VDC)	5...15	3...12
Safe load limit (% F.S.*)	110	110
Breaking load (% F.S.*)	>300	>300