TOSHNIWAL Repair Services India
Toshniwal Instruments Limited is a pioneering Indian manufacturer of precision instrumentation, control systems, and automated solutions headquartered in Pune. Founded in 1978, Toshniwal specialises in temperature measurement, pressure instrumentation, process control, and industrial automation equipment for pharmaceutical, chemical, petrochemical, food processing, and manufacturing sectors across India and Southeast Asia.
Toshniwal Instruments Limited is a pioneering Indian manufacturer of precision instrumentation, control systems, and automated solutions headquartered in Pune. Founded in 1978, Toshniwal specialises in temperature measurement, pressure instrumentation, process control, and industrial automation equipment for pharmaceutical, chemical, petrochemical, food processing, and manufacturing sectors across India and Southeast Asia.
Synchronics Electronics provides comprehensive repair and maintenance services for the complete Toshniwal product portfolio including temperature transmitters, pressure switches, process controllers, temperature scanners, and automation interface modules. Our 180+ engineers possess deep technical knowledge of Toshniwal's proprietary firmware, calibration protocols, and mechanical assemblies. We diagnose complex sensor failures, controller errors, and communication interface faults with precision testing equipment, ensuring your Toshniwal instruments return to full accuracy and functionality.
Certified Toshniwal instrument repair and recalibration across all product families and generations.
TOSHNIWAL Equipment We Repair — By Category
TOSHNIWAL Product Lines We Repair
Our engineers are trained on the full TOSHNIWAL product range. Below are the major product families we service.
Temperature Transmitters and RTD Sensors
Toshniwal's temperature transmitter line converts RTD, thermocouple, and resistance-based inputs into standardised 4-20mA or digital outputs. Common failures include transmitter drift, sensor head corrosion, terminal block oxidation, and firmware calibration loss affecting measurement accuracy in critical processes.
Pressure Switches and Transmitters
Toshniwal pressure instrumentation includes mechanical switches, electronic transmitters, and differential pressure sensors used in hydraulic, pneumatic, and fluid systems. Typical issues are diaphragm rupture, electrical connector corrosion, calibration drift, and seal degradation under extreme operating conditions.
Process Control Systems and PLC Modules
Toshniwal's control modules provide modular automation solutions for batch processing, continuous monitoring, and regulatory compliance. Failures often involve I/O card malfunction, communication protocol errors between modules, relay coil burnout, and memory corruption in programmable logic sections.
Temperature Scanners and Multi-Point Systems
Toshniwal temperature scanners simultaneously monitor multiple measurement points across large equipment or process vessels. Common defects include multiplexer circuit failure, individual channel signal loss, scan rate errors, and data transmission interruption in networked systems.
Industrial Weighing and Load Cell Interfaces
Toshniwal's weighing interface modules translate analogue signals from load cells and strain gauges into usable process data. Typical failures are amplifier gain loss, excitation voltage instability, ADC converter malfunction, and environmental electromagnetic interference affecting measurement precision.
Communication and Data Acquisition Modules
Toshniwal digital communication modules enable integration with industrial networks, SCADA systems, and remote monitoring platforms. Common issues include protocol incompatibility, Ethernet port failure, serial communication hangs, firmware version conflicts, and data packet corruption.
Why Choose Synchronics for TOSHNIWAL 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 TOSHNIWAL 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 TOSHNIWAL Equipment Faults We Fix
Based on 30+ years of repair data, these are the most frequent failure modes we see in TOSHNIWAL equipment arriving at our workshop.
- ✓Temperature Transmitter Signal Drift and Non-Linearity — Extended exposure to process vibration, thermal cycling, or mechanical shock causes sensor element fatigue and resistive connection degradation in Toshniwal RTD heads. Calibration memory loss in digital transmitters occurs due to power supply fluctuations or internal EEPROM corruption.
- ✓Pressure Switch Contact Welding and Loss of Function — Toshniwal mechanical pressure switches experience contact welding under inductive load conditions when high current pulses flow through relay contacts without adequate suppression. Extended operation above rated pressure causes diaphragm permanent deformation preventing switch reset.
- ✓Digital Module I/O Card Failure and Channel Dead Loss — Toshniwal I/O cards suffer from electrostatic discharge damage, surge overvoltage on digital inputs, or excessive current draw on output transistors. Long-term exposure to industrial electrical noise causes intermittent bit errors and complete channel shutdown.
- ✓Ethernet and Serial Communication Port Malfunction — Toshniwal communication modules experience RJ45 connector pin corrosion, trace breaks in PCB around interface ICs, or internal transformer failure in isolation circuits. Surge events from ungrounded sensors or cable routing errors damage Ethernet magnetics or RS-485 line drivers.
- ✓Load Cell Amplifier Gain Loss and Zero Offset Error — Toshniwal weighing interface amplifiers develop gain errors when internal resistor networks drift or operational amplifier input offset voltage increases with age. Excitation voltage regulation circuits fail from electrolytic capacitor aging or voltage regulator IC failure, causing inconsistent calibration.
- ✓Temperature Scanner Multiplexer Channel Dropout and Intermittent Data — Toshniwal temperature scanner multiplexer circuits experience channel dropout from failed switching transistors, defective reed relays, or broken internal wiring to individual sensor inputs. Scan cycle errors and data corruption occur when microcontroller firmware becomes corrupted or clock oscillator fails.
How We Repair Your TOSHNIWAL 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 TOSHNIWAL Equipment
We serve plant maintenance teams across all major industries where TOSHNIWAL automation is deployed.
Frequently Asked Questions — TOSHNIWAL Repairs
Do you repair Toshniwal equipment anywhere in India?+
Yes. Synchronics repairs the complete Toshniwal product range including temperature transmitters, pressure switches, process controllers, temperature scanners, and communication modules. We offer PAN India door pickup from Mumbai, Delhi, Pune, Chennai, Hyderabad, Ahmedabad, Surat, and 300+ other Indian cities. Centralised repair facility in Vadodara, Gujarat with turnaround time of 5-7 business days.
What is the typical repair cost for a Toshniwal transmitter compared to replacement?+
Toshniwal transmitter repairs through Synchronics typically cost 40-60% less than new unit replacement. Most temperature and pressure transmitters are restored to factory specifications through component replacement and recalibration. Critical spare parts inventory ensures faster turnaround than manufacturer supply channels in India.
Can you recalibrate Toshniwal temperature transmitters to NIST standards?+
Yes. Synchronics performs NIST-traceable calibration of all Toshniwal temperature transmitters across the full measurement range. We use precision dry-block calibrators and thermocouple references. Calibration certificates documenting accuracy, linearity, and repeatability are provided for regulatory compliance in pharmaceutical and food industries.
Why is my Toshniwal pressure switch not resetting after pressure drop?+
Contact welding or diaphragm permanent deformation are the most common causes in Toshniwal pressure switches operating under high-current inductive loads. Synchronics diagnoses the root cause through mechanical inspection and electrical contact testing. If contacts are welded, we perform silver-plating or contact material replacement depending on your application pressure range.
How do I know if my Toshniwal I/O card is really faulty or just needs reprogramming?+
Synchronics performs comprehensive diagnostics including isolated channel testing, continuity verification, and firmware reload before confirming hardware failure. Many apparent I/O failures are actually firmware corruption recoverable through reprogramming. Our engineers can remotely assist or repair via mail from most Indian industrial cities.
How do I send my TOSHNIWAL 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 TOSHNIWAL 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 TOSHNIWAL 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 TOSHNIWAL 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.
TOSHNIWAL Repair Catalog
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FLOW RATE INDICATOR - TOTALIZER - F110-P-AP-CX-HE-IX-OT-PC-PD-XI-ZX
260853
Flow Rate Sensors & Indicators
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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