Electrical Products

PT100 Temperature Sensors

Platinum Resistance Temperature Detectors for precise temperature measurement

Industrial PT100 temperature sensors for process control applications

PT100 Sensors Working Principle

Precision Measurement

How PT100 Sensors Work:

In an RTD, resistance increases with temperature.
A precision measurement circuit measures resistance and converts it to temperature using calibration standards like IEC 60751.
PT100 is often used with 2-wire, 3-wire, or 4-wire connections for different accuracy requirements.

2-Wire Connection

Configuration: Simplest connection
Accuracy: Lower accuracy
Lead Resistance: Not compensated
Applications: Short distances, basic measurements

3-Wire Connection

Configuration: Most common industrial choice
Accuracy: Good accuracy
Lead Resistance: Partially compensated
Applications: Standard industrial measurements

4-Wire Connection

Configuration: Most accurate connection
Accuracy: Highest accuracy
Lead Resistance: Fully compensated
Applications: Laboratory, precision measurements

Key Specifications

Feature	What it Means	Typical Values
Standard Resistance @ 0°C	Resistance at reference temperature	100 Ω (for PT100)
Temperature Range	Operating temperature limits	-200°C to +600°C (varies by design)
Tolerance/Accuracy Class	Measurement accuracy per IEC standards	Class A / Class B per IEC 60751
Material	Construction materials	Platinum sensing element, stainless steel sheath
Response Time	Time to reach 63.2% of final value	0.5 to 10 seconds (depends on design)
Temperature Coefficient	Resistance change per degree	0.385 Ω/°C (for platinum)

Accuracy Classes (IEC 60751)

Class	Tolerance (±°C)	Application
Class AA	0.1°C + 0.0017×\|t\|	Laboratory standards
Class A	0.15°C + 0.002×\|t\|	Precision industrial
Class B	0.3°C + 0.005×\|t\|	General industrial
Class C	0.6°C + 0.01×\|t\|	Basic measurements

Resistance vs Temperature

At 0°C: 100.00 Ω
At 100°C: 138.51 Ω
At 200°C: 175.86 Ω
At 300°C: 212.05 Ω
At 400°C: 247.09 Ω
At 500°C: 280.98 Ω

PT100 Sensor Types

Wire-Wound Sensors

Construction: Platinum wire wound on ceramic
Accuracy: High stability
Vibration: Good resistance
Applications: Industrial processes

Thin Film Sensors

Construction: Platinum film on ceramic substrate
Cost: Economical
Size: Compact design
Applications: HVAC, Appliances

Industrial Probes

Construction: Stainless steel sheath
Protection: IP67, IP68 ratings
Mounting: Threaded, flange, compression
Applications: Process industries

Seal Kits

Maintenance seal kits for pneumatic cylinders and valves

Genuine seal kits for Festo and Janatics pneumatic components

Festo Seal Kits

Genuine Parts

Festo has genuine seal kits or compatible kits used for its pneumatic cylinders and valves. They're typically specific to the cylinder bore and design (e.g., DNC series, rodless types, compact cylinders).

Common Festo Seal Kits:

Festo Seal Kit OL 1/2 - For standard cylinders
Festo Seal Kit PVC O 1 - PVC cylinder seals
Festo Seal Kit OK 3/8 - Medium size cylinders
Festo Seal Kit O M5 / OK M5 - Metric thread seals
1/8″ Festo Type Complete Seal Kit - Small cylinder kits

Kit Contents:

Piston seals (O-rings, U-cups)
Rod seals and wipers
Gaskets and backup rings
Lubrication grease
Installation instructions

Janatics Seal Kits

Indian Standard

Janatics is a major Indian pneumatic brand. Seal kits for Janatics cylinders are typically referenced by model series and bore diameter.

Seal Kit Code	For Cylinder Bore	Series	Contents
SK 0002 / SK 0012	Ø40 mm cylinder	A10/A11/A50	Complete seal set for 40mm
SK 0003 / SK 0013	Ø50 mm cylinder	A10/A11/A50	Complete seal set for 50mm
SK 0004 / SK 0014	Ø63 mm cylinder	A10/A11/A50	Complete seal set for 63mm
SK 0005	Ø80 mm cylinder	A10/A11/A50	Complete seal set for 80mm
SK 0006	Ø100 mm cylinder	A10/A11/A50	Complete seal set for 100mm
SK 0007 / SK 0008	Ø125/Ø160 mm	A10/A11/A50	Large size kits
SK 0051 / SK 0053 / SK 0054 / SK 0055	Various sizes	A23, A24, A27, A28	Kits for other series cylinders

Seal Materials & Types

Common Seal Materials

Material	Temperature	Media	Applications
NBR (Nitrile)	-30°C to +100°C	Air, oil, water	Standard pneumatic
PU (Polyurethane)	-40°C to +80°C	Air, water	High wear resistance
Viton (FKM)	-20°C to +200°C	Chemicals, oil	High temperature
EPDM	-40°C to +150°C	Steam, hot water	Food, pharmaceutical

Seal Types

O-Rings U-Cups Rod Seals Piston Seals Wipers Backup Rings Gaskets Bearing Rings

Replacement Guidelines:

Replace seals during preventive maintenance
Use correct lubricant during installation
Clean cylinder thoroughly before assembly
Follow torque specifications

Solenoid Coils

Electromagnetic coils for solenoid valve actuation

Industrial solenoid coils for various voltage ratings

Solenoid Coil Specifications

Universal

Electrical Specifications:

Wide voltage range: 12V DC, 24V AC/DC, 110V AC/DC, 220V AC
Insulation class: Class F (155°C) or Class H (180°C)
Coil protection: IP65 (dust-tight and water-resistant)
Duty cycle: Continuous (100%)

Physical Specifications:

Connection types: DIN connector or flying lead wires
Operating temperature: ~0°C to 80°C
Coil material: Copper winding
Housing material: Plastic, Aluminum

Voltage Types & Applications

12V DC

Mobile equipment
Automotive applications
Battery-powered systems
Low voltage safety

24V DC

PLC control systems
Industrial automation
Control panels
Most common industrial

110V AC

North American standard
Commercial equipment
Light industrial
Export machinery

220V AC

European/Asian standard
Heavy industrial
Direct line connection
High power applications

Coil Types & Features

Connection Types

Type	Description	Advantages
DIN Connector	Standardized plug connection	Quick disconnect, Protected
Flying Leads	Direct wire connection	Simple, Low cost
Terminal Box	Enclosed connection box	Weatherproof, Safe
Plug-in	Quick plug connection	Easy maintenance

Protection Features

Overload Protection: Built-in thermal protection
LED Indicator: Power-on indication
Manual Override: Manual operation button
Surge Protection: Suppression diode/varistor
Explosion Proof: ATEX certified options

Solenoid Coil Selection Guide

Selection Parameters:

Voltage: Match control system voltage
Connection: DIN or flying leads
IP Rating: Environment protection needed
Temperature: Ambient temperature range
Valve Compatibility: Coil mounting dimensions

Common Mistakes to Avoid:

Mixing AC and DC coils
Using wrong voltage rating
Ignoring IP rating requirements
Not considering duty cycle
Overlooking manual override need

Instrumentation & Maintenance Products Overview

Product Category	Key Brands	Applications	Key Features	Typical Industries
PT100 Sensors	Various manufacturers	Temperature measurement	High accuracy, Platinum element	Process, HVAC, Manufacturing
Seal Kits	Festo, Janatics	Pneumatic maintenance	Genuine parts, Complete sets	Maintenance, Repair, Overhaul
Solenoid Coils	Various brands	Valve actuation	Multiple voltages, IP65 protection	All industrial sectors

Technical Support & Contact

Complete Industrial Solutions

We provide comprehensive industrial products including instrumentation, pneumatic components, and maintenance parts for various industrial applications.

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PT100 temperature sensors
Pressure transmitters
Temperature controllers
Measurement instruments

Maintenance Parts

Seal kits for cylinders/valves
Solenoid coils
Replacement parts
Maintenance tools

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Installation guidance
Troubleshooting support
Spare parts supply

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