Bending Beam Load Cell | OBBS

At a Glance

Description

The OBBS bending beam load cell design is suitable for low capacity weighing applications such as batching hoppers where a highly accurate measurement system is required.  They are also suitable for use in conveyor weighing applications.

The bending beam load cell’s high integrity hermetically sealed IP68 bellows and stainless steel construction means that it is ideal for use in process situations where regular washdowns are required to maintain hygiene standards.

A vessel mount is available to suit the OBBS bending beam load cell for static applications and is ideal for load cells in hopper and tank weighing applications.

If you have an existing installation that you would like to upgrade with higher capacity bending beam load cells, we have custom designs for capacities up to 1200kg in the same form factor.  Please contact our technical sales team via the quick enquiry form, email us, or phone +44 (0) 1189 817339.

Technical Specifications

Rated Capacity (RC)	kgf	0-5, 0-10, 0-20, 0-50, 0-100, 0-200, 0-250, 0-500
Operating Modes	Tension/Compression / Tension & Compression
Sensitivity (RO)	mV/V	2.0 ±0.1%
Zero Balance/Offset	±%/Rated Output	<2.0
Zero Return After 30 mins	±%/Applied Load	<0.025
Total Error	±%/Rated Output	<0.020
Temperature Effect on Zero	±%/Rated Load/ ˚C	<0.0010
Temperature Effect on Sensitivity	±%/Applied Load/ ˚C	<0.0012
Input Resistance	Ohms	380 ± 10
Output Resistance	Ohms	355 ± 5
Insulation Resistance	Megohms	>2000 @ 50Vdc
Excitation Voltage	Volts AC or DC	10 recommended (2-15 acceptable)
Operating Temperature Range	˚C	-20 to +70
Compensated Temperature Range	˚C	-10 to +40
Storage Temperature Range	˚C	-20 to +70
Safe Overload	% of Rated Capacity	150
Ultimate Overload	% of Rated Capacity	300
Deflection @ Rated Capacity	mm	<0.4
IP Rating (Environmental Protection)		IP68
Weight (excluding cable)	kg	0.35
Cable Length (as standard)		3 metres
Cable Type		6-Core Screened, PUR sheath
Construction Material		Stainless Steel

Product Dimensions (mm)

Wiring Details

Wire	Designation
Blue	+ve excitation
Green	+ve sense
White	+ve output
Black	-ve excitation
Grey	-ve sense
Red	-ve output

Ordering Codes & Options

Core Product	Capacity (inc Engineering Units)	Cable Length (m)	Specials Code	Example Result
OBBS	5kg	003	000	OBBS-5kg-003-000
OBBS	10kg	003	000	OBBS-10kg-003-000
OBBS	20kg	003	000	OBBS-20kg-003-000
OBBS	50kg	003	000	OBBS-50kg-003-000
OBBS	100kg	003	000	OBBS-100kg-003-000
OBBS	200kg	003	000	OBBS-200kg-003-000
OBBS	250kg	003	000	OBBS-250kg-003-000
OBBS	500kg	003	000	OBBS-500kg-003-000

Mounting Accessories

Vessel Mount for OBBS Load Cells

• Prevent unwanted forces from affecting load cell performance.
• Ideal for load cells in hopper and tank weighing applications.
• Integrated lift-off and overload protection.
• Load introduction by ball and socket joint.

The Vessel Mount assembly for both the OBBS Series of load cells is low profile and simple to install and design into new or existing installations. The mounts can be installed with or without the load cells in position. Plant downtime is reduced to an absolute minimum and the risk of damage to the load cell is eliminated during installation.

Thanks to its integrated jacking device, load cell replacement requires minimum lifting height.

All modules within a scale are identical and can be freely oriented in any direction. It incorporates an integrated check link to eliminate oscillations caused by slow-moving agitators etc.