GRETAG Repair Services India
Gretag, founded in Switzerland in 1952, is a globally recognized leader in color measurement, quality control, and spectrophotometry systems. Their precision optical instruments and digital color management solutions serve printing, packaging, textiles, coatings, and plastics industries worldwide. Gretag equipment is extensively deployed across Indian manufacturing facilities in print production, automotive coatings, and consumer packaging where color consistency and quality assurance are mission-critical.
Gretag, founded in Switzerland in 1952, is a globally recognized leader in color measurement, quality control, and spectrophotometry systems. Their precision optical instruments and digital color management solutions serve printing, packaging, textiles, coatings, and plastics industries worldwide. Gretag equipment is extensively deployed across Indian manufacturing facilities in print production, automotive coatings, and consumer packaging where color consistency and quality assurance are mission-critical.
Synchronics Electronics specializes in repairing Gretag spectrophotometers, colorimeters, densitometers, and integrated color quality control systems used in Indian print houses, converting units, and automotive suppliers. Our 30-year service track record includes restoration of Gretag optical sensors, LED illumination modules, electronic controllers, and communication interfaces. We understand the precision calibration and optical alignment demands unique to Gretag instrumentation, ensuring your color measurement equipment returns to factory-standard accuracy.
Certified restoration of Gretag color measurement and spectrophotometry systems across India.
GRETAG Product Lines We Repair
Our engineers are trained on the full GRETAG product range. Below are the major product families we service.
Gretag Spectral Measurement Systems
Spectrophotometers and spectral reflectance instruments for multi-angle color data acquisition and ICC profile generation. Common issues include LED light source degradation, optical sensor misalignment, USB and Ethernet interface failures, and calibration drift in older units.
Gretag Densitometry & Process Control
Integrated densitometers and inline color quality monitors for flexo, offset, gravure, and digital printing environments. Typical faults include photodiode sensor degradation, reference white calibration loss, temperature compensation circuit failure, and CAN-bus communication errors.
Gretag Color Management Software & Interfaces
PC-based color matching software, ICC profile editors, and hardware control modules for CMM integration. Common repair issues involve aging USB ports, corrupted firmware in measurement heads, EEPROM memory failure, and driver incompatibility with Windows 10/11 platforms.
Gretag Optical Sensors & Light Sources
Replacement optical modules including LED illumination arrays, photodiode detector arrays, diffuse and specular measurement heads. Failures stem from LED thermal cycling, photodiode aging, fiber optic connector loosening, and integrated circuit board corrosion.
Gretag Legacy Analog Colorimeters
Older analog-output densitometers and color meters still in use across Indian print shops and textile mills. Restoration challenges include mechanical potentiometer wear, analog-to-digital converter degradation, and sourcing replacement vacuum phototubes.
Gretag Electronic Control & Communication Modules
PCB assemblies, serial converters, Ethernet gateways, and wireless connectivity modules for networked color quality systems. Typical failures include electrolytic capacitor drying, RS-232/485 transceiver failure, Ethernet RJ45 port damage, and SD card slot wear.
Why Choose Synchronics for GRETAG Repairs?
PCB-Level Expertise
We repair down to the component level — not just swap boards. Our engineers identify root causes, replace failed IGBTs, capacitors, processors, and gate drivers on GRETAG equipment.
Fast Turnaround
Standard 7–10 working days. Express 3–5 days available for critical breakdowns. Emergency same-day/next-day service for unplanned downtime.
6-Month Warranty
Every repaired unit ships with a 6-month comprehensive warranty on parts and labour. Our repair success rate is over 94% across all brands.
All-India Service
Couriered repairs accepted from any city in India. Doorstep pickup available in Vadodara, Mumbai, Pune, Ahmedabad, Surat, Chennai, and more.
Common GRETAG Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in GRETAG equipment arriving at our workshop.
- ✓LED light source failure or color shift — Gretag spectrophotometers rely on precision LED arrays (D65, A, F2 simulants) that degrade after 15000+ operating hours. Thermal cycling in uncontrolled Indian print shop environments accelerates phosphor degradation and phosphor-to-phosphor color mismatch in multi-wavelength arrays.
- ✓Photodiode detector sensitivity loss or dark current drift — Gretag measurement heads use silicon photodiode arrays whose responsivity degrades with age and UV exposure. Operating hours, dust contamination on lens surfaces, and thermal stress cause baseline drift and loss of repeatability in color readings.
- ✓Calibration reference white loss or reference tile contamination — Gretag colorimeters store calibration data in EEPROM and reference white calibration on built-in ceramic tiles. Dirt, ink splatters, and chemical fumes in Indian print plants corrode reference surfaces; EEPROM corruption from power surges erases calibration memory.
- ✓USB or Ethernet interface communication failure — Gretag measurement heads connect via USB 2.0 or Ethernet (RJ45) to PCs for data transfer. Connector corrosion, fractured PCB traces, and failed port controller ICs (CH341, FT232 series) are common in humid Indian manufacturing floors, especially near water-based inks and cleaners.
- ✓Temperature compensation sensor malfunction or thermal drift — Gretag instruments include thermistors and temperature compensation circuits to maintain color accuracy across 18-25 C operating range. Thermistor failure, op-amp drift in conditioning circuits, and incorrect thermal calibration lead to color readings that drift 2-5 DE units over temperature.
- ✓Firmware corruption or software driver incompatibility — Older Gretag measurement heads use EEPROM-based firmware; power failures and USB disconnections during updates corrupt bootloader or measurement algorithms. Windows 10/11 updates break legacy USB device drivers; USB 3.0 hubs cause enumeration timeouts with Gretag legacy sensors.
How We Repair Your GRETAG Unit
Receive & Log
Your unit is logged into our tracking system with a unique job number. You receive WhatsApp / email updates at every stage.
Fault Diagnosis
Board-level diagnosis using oscilloscopes, LCR meters, and thermal cameras. Root cause identified before any repair begins.
Component Repair
Faulty ICs, capacitors, MOSFETs, IGBTs, and gate drivers replaced with genuine or equivalent-spec components.
Full-Load Test
Unit tested under rated load with original or equivalent motor. All parameters verified. 6-month warranty issued.
Industries Using GRETAG Equipment
We serve plant maintenance teams across all major industries where GRETAG automation is deployed.
Frequently Asked Questions — GRETAG Repairs
Do you repair Gretag color measurement equipment anywhere in India?+
Yes. Synchronics Electronics repairs Gretag spectrophotometers, colorimeters, densitometers, and color quality control systems across all of India. We offer PAN India door pickup from major cities including Mumbai, Delhi, Bangalore, Pune, Chennai, Hyderabad, Ahmedabad, Kolkata, and Vadodara. Units are transported to our certified Vadodara facility for diagnosis, repair, recalibration, and testing before return shipment. Typical turnaround is 5-7 working days for standard repairs.
How do you recalibrate Gretag spectrophotometers to factory standards?+
Synchronics uses ISO 13655-certified reference color standards and precision illumination geometry to restore Gretag colorimeters to original accuracy. We validate against Pantone, CMYK, and neutral gray standards; measure spectral response across 380-730 nm; and verify repeatability and inter-instrument agreement. All units return with calibration certificates, reference tile condition reports, and recalibration date tags.
Can you repair Gretag measurement heads that have lost USB or Ethernet connectivity?+
Absolutely. Synchronics diagnoses communication failures at the hardware level — USB port damage, failed FTDI or CH341 controller chips, and PCB trace corrosion are common in dusty or humid print shops. We replace port assemblies, re-solder damaged circuits, and test full bidirectional communication (measurement data transfer, firmware updates, calibration commands) before return. We also supply shielded cables and grounded connector covers to prevent future corrosion.
What is the cost and timeline for repairing a Gretag LED light source failure?+
Gretag LED array failures typically cost Rs 8,000-14,000 for parts and labor, depending on illuminant type (D65, A, F2) and measurement head design. Synchronics keeps OEM-equivalent LED modules in stock for common Gretag models. Repair and recalibration typically take 3-4 working days. We provide upfront quotations after visual inspection, and offer extended warranty (6-12 months) on replaced optical modules.
Do you offer preventive maintenance or calibration services for Gretag instruments?+
Yes. Synchronics offers annual calibration and preventive maintenance contracts for Gretag color measurement systems used in high-volume print and coating operations. Services include optical cleaning, calibration verification, thermal stability testing, firmware updates, and reference tile inspection. Quarterly maintenance visits can be arranged for critical inline color monitors. Contact our service team in Vadodara to discuss annual service plans tailored to your production volume.
How do I send my GRETAG unit for repair?+
Pack the unit securely and courier it to our Vadodara workshop. Include a note with the fault description and your contact details. We will log it into our system and WhatsApp you a job number within 24 hours of receipt. Doorstep pickup is available in Vadodara, Ahmedabad, Surat, Mumbai, and Pune.
What is the cost of repairing a GRETAG drive or PLC?+
Repair cost depends on the model and the fault. We offer a free diagnosis — once we identify the fault, we provide a fixed quotation before proceeding. Typical repairs cost 20–40% of the new unit price. We will never repair without your approval.
What warranty do you provide on GRETAG repairs?+
All repaired units carry a 6-month comprehensive warranty covering the same fault and related issues. If the fault recurs within the warranty period, we repair it free of cost.
Do you provide a no-fix, no-fee guarantee?+
Yes. If we cannot repair your GRETAG unit after diagnosis, you pay only the diagnosis fee (₹500–₹1,500 depending on the product). The unit is returned to you at no additional charge.
GRETAG Repair Catalog
No products found for GRETAG
Don't See Your GRETAG Model Listed?
We repair the full range of GRETAG industrial electronics — even if the specific model is not yet in our catalog. Send us the unit details and we'll confirm repairability within 24 hours.
Free evaluation • 6-month warranty • PAN India pickup
Get Your Equipment
Back in Action — Fast
Send us your faulty industrial electronics. Our engineers will diagnose it and provide a detailed quote within 24 hours — with no obligation to proceed.
Free Evaluation
No obligation
48hr Turnaround
Fastest in India
6-Month Warranty
Every repair
No Fix, No Charge
Zero risk policy
Pan-India Pickup
Doorstep service