Vitronics Soltec ITW C99155 C97549 PT100
C99155, C97549, and PT100 are ITW Vitronics Soltec PT100 platinum resistance temperature sensor assemblies specifically designed for wave soldering/selective soldering pots. They are used for closed-loop temperature control and over-temperature protection in solder pots and are compatible with Delta 3/5/X, 6622 CC, and mySelective series.
C99155: Complete PT100 temperature sensor assembly (including probe, sheath, wiring, and mounting)
C97549: PT100 temperature control probe of the same series (lead-free, TI material, often used with/replaces C99155)
PT100: Core temperature sensing element (platinum resistance thermometer, 0℃=100Ω, IEC 60751 standard, α=0.003851)
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Original Standard
1. C99155 (Main Assembly)
Type: PT100 three-wire platinum resistance temperature sensor (Class B accuracy)
Temperature Range: 0~500℃ (commonly used for tin pots, 230~280℃ lead-free)
Accuracy: ±0.5℃ (Class B: ±(0.3℃+0.005|t|))
Probe: Stainless Steel 316L 1. Sheath, Φ6mm×50mm/80mm (insertion depth), resistant to solder melt corrosion
Installation: M12×1.5 threaded fixing, compatible with solder pot side/bottom mounting holes
Wiring: 3-wire system (red/white/black), with waterproof connector/aviation plug, cable length 1.5~2m
Compatible with: Delta 5, Delta X, 6622 CC, ZEVAm+, and other solder pot temperature controllers
2. C97549 (Lead-free dedicated probe)
Positioning: Lead-free upgrade and replacement probe for C99155 (TI titanium alloy/high corrosion-resistant sheath)
Core: Built-in PT100 element, parameters same as C99155, more resistant to lead-free solder (SAC305) corrosion, longer lifespan
Identification: Often marked 7-C97549 / THERMOSTAT PT100 SOLDERPOT LEAD-FREE
3. PT100 Core Parameters (General)
Nominal Resistance at 0℃: 100.00Ω
Temperature Coefficient: 0.003851 Ω/Ω/℃ (IEC 60751)
Wiring: Three-wire system (to eliminate lead resistance error, the device must be set to 3-wire PT100)
Protection: IP65, temperature resistant, resistant to flux/solder dross corrosion
Applicable Models and Installation Locations
Applicable to: Delta 3/5/X, 6622 CC, mySelective 6748, ZEVAm+ wave soldering/selective soldering
Installation: Inside/side wall of the solder pot, directly immersed in molten solder for temperature measurement, controlling heating power, and providing over-temperature alarm
Purchase
1. Original Manufacturer (ITW EAE)
Part Numbers: C99155 (Assembly), C97549 (Lead-free Probe)
Channel: ITW EAE China
Key Points: Must confirm three-wire system, 0.003851 Ω/℃ Graduation, insertion depth, and thread specifications: direct replacement without machine modification.
Common Faults and Maintenance
Temperature Inaccuracy/Sudden Fluctuations: Clean probe solder residue, check for loose wiring, replace aged PT100 (lifespan 6–12 months)
Over-Temperature Alarm: Probe short circuit/open circuit, wiring error, abnormal temperature control module parameters
Corrosion and Fracture: In lead-free solder environments, prioritize replacing with a C97549 titanium alloy probe to extend lifespan.
Calibration: Calibrate annually with a standard thermometer; replace immediately if deviation > ±1℃.
Quick Checklist (Avoid Buying the Wrong One)
Equipment Model (Delta 5/6622 CC/mySelective)
Is it the assembly C99155 or just the probe C97549?
Insertion Depth (50mm/80mm), Thread M12×1.5, Three-wire PT100, 0.003851