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VPG – Ring Torsion Load Cell

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VPG – Ring Torsion Load Cell
Brand: VPG

Description:
The RLC is a low profile, high-performance stainless steel ring torsion type load cell. The fully welded construction and glass-to-metal cable entry ensure that this product can be used successfully in harsh environments found in the food, chemical and allied process industries. This product is suitable for small and medium platform scales, hoppers and process weighing. This product meets the stringent Weights and Measures requirements throughout Europe and the USA.

Features:

• Capacity range: 250 kg to 60 t • Low proile, stainless steel construction • Hermetically sealed, IP66 and IP68; IP69K is available for 250 kg, 5 t and 10 t versions • Meets OIML R-60 and NTEP 6000d • Outputs are matched to ensure easy and accurate parallel connection of multiple load cells • Optional:
	❍ ATEX certiied versions are available for use in potentially explosive atmospheres ❍ Multi-interval and multiple-range versions are available

Applications:
• Platform scales
• Belt scales
• Silo hopper weighing

Specifications:

PARAMETER	VALUE				UNIT
Standard capacities (Emax)	0.25, 0.5, 1, 2, 3.5, 5, 10, 28, 60				t
Accuracy class according to OIML	NTEP IIIL	D3	C3(3)	C6(2)
Maximum no. of verfication intervals (nlc)	10000		3000	6000
Minimum verification interval			Emax/10000	Emax/15000
Minimum verification interval type MR			Emax/20000(1)	Emax/28000
Rated output (=S)	2 (1.75 for 0.25 t, 2.05 for 10 t)				mV/V
Output accuracy for multiple LC systems	0.01				±% mV/V
Zero balance	1.0				±% FSO
Combined error	0.0200	0.0300	0.0230	0.0115	±% FSO
Creep error (30 minutes)			0.0245	0.0123	±% FSO
Temperature effect on zero	(0.0010)	(0.0010)	0.0070	0.0045	±% FSO/5°C (/°F)
Temperature effect on sensitivity (output)	(0.0008)	(0.0008)	0.0050	0.0025	±% FSO/5°C (/°F)
Minimum dead load	0				% Emax
Maximum safe overload	150				% Emax
Ultimate overload	300				% Emax
Maximum safe side load	100% up to 10 t 50% for 28 & 60 t				% Emax
Deflection at Emax	0.12–0.20				mm
Excitation voltage	5 to 15				V
Maximum excitation voltage	30				V
Input resistance	1110±50 (1100±50 for 0.25 t and 10 t) 1075±100 for 28 t 1350±100 for 60 t				Ω
Output resistance	1025±25 (1025±50 for 0.25 t and 10 t) 930±0.5 for 28 t 1175±0.5 for 60 t				Ω
Insulation resistance	≥5000 (20 for 28 and 60 t)				MΩ
Compensated temperature range	-10 to +40				°C
Operating temperature range	-30 to +70				°C
Storage temperature range	-50 to +80				°C
Element material (DIN)	Stainless steel 1.4542
Sealing (DIN 40.050 / EN60.529)	IP66 and IP68; IP69K available for 250 kg, 5 t and 10 t
Recommended torque on fixation bolts	12 to 14				N*m
ATEX opt. for potent. explosive atmo-spheres	II2G EEx ib IIC T4/T6, II2D, IIID T70 II3G nA II T4/T6

Capacities of 28 and 60 ton Emax/15,000 approved to OIML C3 only
250 kg and 10 t capacities are approved to OIML C3 only. Maximum application range for 0.5 t is 0.75*Emax.
The following accuracy classes are available (from 0.5 t to 10 t): C3MI6 and C3MI7.5. Minimum dead load output return is Emax/6000 and . Emax /7500 respectively

FSO—Full Scale Output
All speciications subject to change without notice.

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VPG – Ring Torsion Load Cell

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