Hazardous-Area Optical Sensing Solution — OPTEK C4221-EX | C4000-EX Series | CONTROL 4000
Where This Product Is Used
The OPTEK C4221-EX Photometric Converter is engineered for continuous, reliable optical measurement in the most demanding industrial environments. Typical deployment scenarios include:
- Oil & Gas Refineries — inline turbidity and color monitoring of process streams in Zone 1/Zone 2 classified areas
- Chemical & Petrochemical Plants — real-time photometric analysis of reaction mixtures and effluent streams
- Pharmaceutical Manufacturing — GMP-compliant in-process concentration and clarity measurement
- Water & Wastewater Treatment — continuous UV/VIS absorption monitoring for compliance reporting
- Food & Beverage Processing — color and turbidity QC in CIP-compatible pipelines
- Pulp & Paper — bleach concentration and consistency measurement in hazardous process zones
Technical Specifications
| Attribute | Value |
|---|---|
| Part Number / SKU | CONTROL-4000-C4221-EX-EN-D-C4000-EX |
| Series | C4000-EX / CONTROL 4000 |
| Function | Photometric Converter (Optical Signal Processing) |
| Hazardous Area Classification | ATEX / IECEx Zone 1 & Zone 2 (Ex-rated) |
| Enclosure Variant | EN-D (Enhanced, Display) |
| Manufacturer | OPTEK Technology / CONTROL 4000 |
| Weight | 1,340 g |
| Shipping | Physical unit — requires shipping |
Why Engineers Specify This Model
- Explosion-Proof Rated (EX) — certified for Zone 1/Zone 2 hazardous locations; eliminates the need for costly purge-and-pressurize enclosures
- C4000-EX Platform Compatibility — plug-and-play integration with OPTEK C4000-EX fiber-optic probes and transmitters; no signal conditioning adapters required
- EN-D Display Variant — onboard digital display for local readout and commissioning without a laptop or handheld programmer
- Robust Signal Integrity — photometric conversion with high linearity across wide absorbance ranges; suitable for both clear and turbid media
- Reduced Wiring Complexity — single-cable fiber-optic connection to probe minimizes intrinsically safe barrier requirements
- Long Service Life — solid-state optical design with no moving parts; rated for continuous 24/7 industrial operation
Complete System Bill of Materials
For a fully operational C4000-EX photometric measurement loop, engineers typically specify:
- OPTEK C4221-EX Photometric Converter (this unit)
- C4000-EX Series Fiber-Optic Immersion or Flow-Through Probe (process-specific)
- OPTEK C4000-EX Fiber-Optic Cable Assembly (length per installation)
- DIN-Rail Power Supply (24 VDC, min. 2 A)
- Intrinsic Safety Barriers (if Zone 0 probe deployment required)
- 4–20 mA or HART signal cable to PLC/DCS analog input card
Compliance & Industry Standards
- ATEX Directive 2014/34/EU — Equipment Group II, Category 2G
- IECEx Scheme — international hazardous area certification
- CE Marking — EU market conformity
- EMC Directive 2014/30/EU — electromagnetic compatibility
- RoHS Compliant — restricted hazardous substances
Quality Assurance & Sourcing
Every OPTEK C4221-EX unit supplied by Konmask.com undergoes the following verification process:
- Visual and dimensional inspection against OEM datasheet
- Label and serial number authentication
- Functional power-on verification where applicable
- Traceable supply chain — sourced from authorized distributors and verified surplus channels
- Shipped in anti-static, moisture-barrier packaging with full documentation
How to Source This Part
Stock availability for the C4221-EX is limited due to the specialized nature of ATEX-rated photometric instrumentation. To secure your unit:
- Order Online — add to cart and complete checkout at Konmask.com
- Request a Quote — contact support@konmask.com for volume pricing or project-specific lead times
- Phone / WhatsApp — +0086 19859288691 for urgent procurement inquiries
- Lead Time — typically 3–7 business days for in-stock units; extended lead times apply for factory-new orders
Application-Specific FAQ
Q: Is the C4221-EX compatible with all C4000-EX probes?
A: Yes. The C4221-EX is the standard photometric converter for the entire C4000-EX probe family. Confirm the fiber-optic connector type (SMA or proprietary) when ordering cable assemblies.
Q: Can this unit be used in Zone 0 hazardous areas?
A: The converter itself is rated Zone 1/Zone 2. For Zone 0 probe installations, pair with certified intrinsic safety barriers between the converter and the probe.
Q: What output signals does the C4221-EX provide?
A: The unit provides a standard 4–20 mA analog output proportional to the measured photometric value, compatible with any PLC or DCS analog input module.
Q: Does Konmask.com provide calibration certificates?
A: Factory calibration documentation is included where available. Contact us prior to ordering if a NIST-traceable calibration certificate is required for your QMS.
Q: What is the warranty on this unit?
A: Konmask.com provides a 90-day functional warranty on all verified units. Extended warranty options are available — contact support for details.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
