Model 355
Tedea-Huntleigh
Welded, Hermetically Sealed Load Cell
FEATURES
• Capacities 5–500 kg
• Stainless steel construction
• OIML R60 and NTEP approved
• IP68 protection
• Optional
❍❍ EEx ia IIC T6 hazardous area approval
❍❍ FM approval available
APPLICATIONS
• Low profile platforms
• Loss-in-weight feeders The low profile, high accuracy and sealing makes this load
• Marine and hybrid scales cell highly suitable for applications such as low profile
platforms, weighing and packing machines, conversion of
• Belt weighers mechanical scales and variety of other applications where
• Food industry harsh environment sealed cells are required. For hazardous environments this
load cell is available with EEx ia IIC T6 level of approval as
DESCRIPTION an option.
Model 355 is a welded bending load cell manufactured in The two additional sense wires feed back the voltage
stainless steel. Hermetically sealed against moisture the reaching the load cell. Complete compensation of change
Model 355 construction and polyurethane shielded cable in the lead resistance due to temperature change and/or
enables the load cell to function in harsh environments cable extension, is achieved by feeding this voltage into
while maintaining its operating specifications. the appropriate electronics.
OUTLINE DIMENSIONS in millimeters
+ve Signal
Load Direction
20
20
46 20.5
Ø41
10 18 82
Ø8.2
3 Places
Ø32
Ø23
120
Document No.: 12055
44 Revision: 30-Aug-2012
Model 355
Tedea-Huntleigh
Welded, Hermetically Sealed Load Cell
SPECIFICATIONS
PARAMETER VALUE UNIT
Rated capacity—R.C. (Emax) 5, 10, 20, 30, 50, 100, 200, 250, 500 kg
NTEP/OIML accuracy class NTEP Non-Approved C3(1) C4(2)
Maximum no. of intervals (n) 4000 single 1000 3000 4000
Y = Emax/Vmin 5800 2000 15000 13333 Maximum available 15000
Rated output—R.O. 2.00 (UR matched = 2.02) mV/V
Rated output tolerance 0.002 ±mV/V
Zero balance 0.04 ±mV/V
Zero return, 30 min. 0.0125 0.0500 0.0170 0.0125 ±% of applied load
Total error 0.0200 0.05 0.0200 0.0150 ±% of rated output
Temperature effect on zero 0.0023 0.007 0.0009 0.0011 ±% of rated output/°C
Temperature effect on output 0.001 0.0040 0.0010 0.0008 ±% of applied load/°C
Temperature range, compensated –10 to +40 °C
Temperature range, safe –20 to +70 °C
Maximum safe central overload 150 % of R.C.
Ultimate central overload 300 % of R.C.
Excitation, recommended 10 VDC or VAC RMS
Excitation, maximum 15 VDC or VAC RMS
Input impedance 380±10 Ω
Output impedance 355±5 Ω
Insulation resistance >2000 MΩ
Cable length 3 m
Cable type 6-wire, braided, polyurethane, dual floating screen Standard
Construction Stainless steel
Environmental protection IP68
Recommended torque 22.0 N*m
(1)
20% utilization
(2)
30% utilization
All specifications subject to change without notice.
Wiring Schematic Diagram
+ve Input (Blue)
+ve Sense (Green)
+ve Output (White)
–ve Input (Black)
–ve Sense (Grey)
–ve Output (Red)
Document No.: 12055
Revision: 30-Aug-2012 45
Legal Disclaimer Notice
Vishay Precision Group
Disclaimer
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behalf (collectively, “Vishay Precision Group”), disclaim any and all liability for any errors, inaccuracies or
incompleteness contained herein or in any other disclosure relating to any product.
The product specifications do not expand or otherwise modify Vishay Precision Group’s terms and
conditions of purchase, including but not limited to, the warranty expressed therein.
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and conditions of purchase. To the maximum extent permitted by applicable law, Vishay Precision
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merchantability.
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Document No.: 63999
Revision: 27-Apr-2011 1
