INDUSTRY COMPONENT

Color Indicator

Color indicator for monitoring sodium nitrite concentration in curing salt production

Component Specifications

Definition
A precision optical component integrated into high-purity sodium nitrite curing salt production equipment that provides real-time visual feedback on chemical concentration levels through calibrated color changes, ensuring consistent product quality and process control in meat curing applications.
Working Principle
Operates on photometric analysis principles where specific wavelengths of light interact with sodium nitrite solutions, causing measurable color variations that correlate directly with concentration levels. The system uses calibrated optical sensors and reference standards to detect subtle hue changes, converting them into concentration readings displayed through LED indicators.
Materials
Food-grade 316L stainless steel housing, borosilicate glass optical windows, PTFE seals, FDA-compliant epoxy coatings, corrosion-resistant sensor elements
Technical Parameters
ParameterTypical rangeNotes & selection driver
Accuracy±2% of reading
IP RatingIP67
Power Supply24V DC
Output Signal4-20 mA analog / Modbus RTU
Response Time<5 seconds
Pressure Rating0-10 bar
Measurement Range0-200 ppm sodium nitrite
Calibration Interval90 days
Operating Temperature0-50°C

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

Standards
ISO 22000, ISO 9001, DIN 11850, FDA 21 CFR Part 110

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Chemical contamination risk if seals fail
  • False readings due to optical surface fouling
  • Electrical hazard in wet processing environments
  • Calibration drift over time
FMEA Triads
Trigger: Seal degradation from chemical exposure
Failure: Process fluid leaks into optical chamber
Mitigation: Use PTFE seals with quarterly inspection schedule and annual replacement
Trigger: Optical surface contamination
Failure: Inaccurate concentration readings
Mitigation: Implement automated cleaning cycles and monthly manual inspection
Trigger: Sensor calibration drift
Failure: Systematic measurement errors
Mitigation: Automated calibration reminder system with certified reference standards

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±2% of actual sodium nitrite concentration across 0-200 ppm range
Test Method
ASTM E275-08 standard practice for spectrophotometry, verified against NIST-traceable reference materials

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Color Indicator

Manufacturer profiles associated with Color Indicator.

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Frequently Asked Questions

How often should the color indicator be calibrated?

Calibration is recommended every 90 days using certified sodium nitrite reference solutions to maintain measurement accuracy within ±2%.

Can this indicator detect other curing agents besides sodium nitrite?

No, this specific model is calibrated exclusively for sodium nitrite detection. Different optical configurations would be required for other curing agents like potassium nitrate or sodium nitrate.

What maintenance is required for optimal performance?

Monthly cleaning of optical surfaces with food-grade cleaning solutions, quarterly calibration verification, and annual replacement of O-rings and seals to prevent contamination.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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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