Editorial Technical Reference

Weight Indicator/Controller

This page explains how Weight Indicator/Controller is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Electronic device that displays weight measurements and controls weighing processes

Product Specifications

Technical details and manufacturing context for Weight Indicator/Controller

Definition
A weight indicator/controller is a core component of industrial weighing systems. It receives electrical signals from load cells or other weight sensors, processes the data to display accurate weight measurements, and provides control functions for batching, filling, checkweighing, and other automated weighing operations. Serving as the user interface and processing brain of the weighing system, it enables operators to monitor and manage weighing processes efficiently.

The device typically features a digital display (LCD or LED) and a keypad for configuration. It amplifies and digitizes the low-level signals from load cells, applies internal algorithms to calculate weight values, and outputs control signals to external devices such as feeders, valves, or alarms based on programmed setpoints and thresholds. This allows for precise control of material flow and process automation.

Key parameters to consider when selecting a weight indicator/controller include weighing capacity (3–100 t, with a recommended 20% margin above maximum load), accuracy class (III per OIML R76 for legal-for-trade applications), display resolution (1–20 kg), input sensitivity (0.3–3 mV/V), excitation voltage (5–12 V DC), and power supply (85–264 V AC). Environmental ratings include operating temperature (-10 to 50 °C), storage temperature (-20 to 70 °C), relative humidity (10–90% non-condensing), and ingress protection (IP54–IP65 per IEC 60529). The enclosure is typically made of 304 stainless steel (per ASTM A240) for corrosion resistance, and the unit weighs 2–5 kg depending on mounting style (panel mount or benchtop).

Always verify model-specific values and standards with the legal manufacturer or supplier before purchase or installation.
Working Principle
The weight indicator/controller receives electrical signals from load cells or strain gauges, typically in the range of millivolts per volt (mV/V). These signals are amplified and converted from analog to digital using an analog-to-digital converter. The digital data is then processed by internal algorithms to calculate the weight value, which is displayed on a digital screen. Based on programmed parameters and thresholds, the device outputs control signals to external devices such as relays, transistors, or analog outputs to initiate or stop processes like batching or filling. The device also provides diagnostic functions to monitor sensor health and system performance.
Common Materials
Electronic components, Plastic housing, Metal chassis, LCD/LED display
Technical Parameters
ParameterTypical rangeNotes & selection driver
Weighing Capacity3–100 tSelect based on max load, leave 20% margin
Accuracy ClassIIILegal for trade applicationsOIML R76
Display Resolution1–20 kgHigher resolution for precision batching
Input Sensitivity0.3–3 mV/VMatch to load cell output
Excitation Voltage5–12 V DCMust match load cell specification
Power Supply85–264 V ACUniversal input for global use
Operating Temperature-10–50 °CExtended range available for harsh environments
Storage Temperature-20–70 °CProtect from extreme heat or cold
Relative Humidity10–90 %Non-condensing
Ingress ProtectionIP54–IP65IP65 for washdown areasIEC 60529
Enclosure Material304 SSStainless steel for corrosion resistanceASTM A240
Weight2–5 kgPanel mount vs. benchtop

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Weight Indicator/Controller.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric (non-pressurized environment)
other spec: Humidity: 10-90% RH non-condensing, Power: 100-240V AC, 50/60Hz, IP65 rating typical
temperature: -10°C to 50°C (operating), -20°C to 70°C (storage)
Media Compatibility
✓ Industrial dry bulk materials (grains, powders) ✓ Liquid weighing in tanks/hoppers ✓ Packaged goods on conveyor systems
Unsuitable: Explosive atmospheres (unless intrinsically safe certified)
Sizing Data Required
  • Maximum capacity (kg/lb)
  • Required accuracy/resolution (e.g., 0.1% FS)
  • Platform/load cell dimensions and mounting configuration

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Load cell drift/calibration loss
Cause: Mechanical overload, moisture ingress, temperature fluctuations, or electrical interference affecting strain gauge accuracy
Display/controller malfunction
Cause: Power supply issues, component aging, environmental contamination (dust/moisture), or software/firmware corruption
Maintenance Indicators
  • Inconsistent or erratic weight readings during repeated measurements
  • Display showing error codes, blank screen, or unresponsive controls
Engineering Tips
  • Implement regular calibration schedules using certified weights and maintain environmental logs (temperature/humidity) to track performance trends
  • Install surge protection on power lines, ensure proper grounding/shielding of cables, and maintain clean/dry operating conditions to prevent electrical and environmental damage

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
OIML R76-1 - Non-automatic weighing instruments IEC 61010-1 - Safety requirements for electrical equipment

Quoted from the published standard.

Manufacturing Precision
  • Accuracy: +/-0.1% of full scale
  • Repeatability: +/-0.05% of applied load
Quality Inspection
  • Calibration verification with certified test weights
  • Environmental testing (temperature, humidity, vibration)

Manufacturers of Weight Indicator/Controller

7 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Dongying Lake Petroleum Technology CO., Ltd
Shandong, CN
ISO GOST
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Weight Indicator”
View source page ↗ lakepetro.com · checked 2026-08-26
Anhui Zhimin Electrical Technology Co., Ltd.
Anhui, CN
Also makes: Force Sensor, Load Sensor, Force/Torque Sensor and 5 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “weight indicator”
View source page ↗ zhiminsensor.com · checked 2026-09-06
Better Petro China
Dongying, Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Weight indicator”
View source page ↗ betterpetro.com · checked 2026-09-16
Dongying Huike Machinery Co.,Ltd
Dongying, Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “MD Totco Weight indicator”
View source page ↗ huikemach.com · checked 2026-09-16
GALOCE (Xi'an) M&C Technology Co., Ltd.
Xian, Shaanxi, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Weight indicator”
View source page ↗ galoce.com · checked 2026-09-05
Rigchina Group Company
Zhejiang, CN
Also makes: Smartphones, Pressure System, Curing Chamber and 3 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Weight Indicators”
View source page ↗ rigchina.com · checked 2026-09-16
Top Sensor Technology
Dongguan, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Weight Indicator”
View source page ↗ tst-scale.com · checked 2026-09-07

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the difference between a weight indicator and a weight controller?

A weight indicator primarily displays weight measurements, while a weight controller also provides control outputs to automate processes such as batching or filling. Many devices combine both functions, allowing for display and control in one unit.

How do I choose the right weighing capacity for my application?

Select a capacity that is at least 20% higher than the maximum expected load to ensure accuracy and prevent overload. For example, if your maximum load is 80 t, choose a capacity of 100 t. Always confirm with the manufacturer for specific recommendations.

What does accuracy class III mean?

Accuracy class III is a classification defined by OIML R76 for legal-for-trade weighing instruments. It indicates the maximum permissible errors for the device. This class is suitable for commercial applications where weight measurements are used for trade.

Can the indicator be used in washdown environments?

Yes, if the ingress protection rating is IP65 or higher. The listed range is IP54–IP65, so models with IP65 are suitable for washdown areas. Always verify the specific rating of the model you intend to use.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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