Product details
Weiss Silicon Filled Thermometer | SF5VBM25 | 0-100°C | 5″ Dial
Product Description
The SF5VBM25 is part of the specialized Weiss Silicon Filled (SF) series. The Silicon Filling serves as a mechanical dampener for the internal pointer and bimetal helix, protecting the instrument from the wear and tear caused by high-vibration equipment such as large pumps, generators, and industrial compressors in Dubai and Abu Dhabi.
With a 5-inch (125 mm) dial and a temperature range of 0-100°C, this thermometer provides exceptional readability even from a distance. The case is constructed from 304 Stainless Steel and is hermetically sealed, making it perfectly suited for the humid and corrosive conditions often found in Middle Eastern industrial facilities. The Vertical (Bottom) Mount configuration allows for easy installation on top of pipes or equipment housing.
Key Features
- Silicon Filled Dampening: Eliminates pointer flutter and protects internal components in high-vibration applications.
- Large 5″ High-Visibility Dial: Features a clean white background with bold black markings for easy reading across industrial plant floors.
- Vibration & Shock Resistant: Specifically engineered to maintain accuracy and longevity where standard dry thermometers might fail.
- Hermetically Sealed 304SS Case: Ensures a moisture-proof and dust-proof seal, preventing internal fogging in the UAE’s high-humidity environments.
- External Reset: Includes a calibration feature on the back of the case, allowing for easy field adjustments without compromising the seal.
Technical Specifications
| Specification | Details |
| Brand | Weiss Instruments |
| Model | SF5VBM25 |
| Dial Size | 5″ (125 mm) |
| Range | 0 – 100°C |
| Filling | Silicon (Dampening Liquid) |
| Connection Type | Vertical Mount (Bottom) |
| Connection Size | 1/2″ NPT |
| Stem Length | 2-1/2″ (Standard) |
| Case Material | 304 Stainless Steel |
| Accuracy | $\pm$
1% of Full Scale |
Frequently Asked Questions
- Q: Why use silicon filling instead of glycerin?
- A: Silicon is preferred for thermometers because it maintains a more consistent viscosity across a wide temperature range and provides superior vibration dampening for the bimetal coil.
- Q: Is this thermometer suitable for outdoor use in Sharjah?
- A: Yes, the 304 Stainless Steel case and hermetic seal are designed to withstand direct exposure to the sun and high coastal humidity.
- Q: Do I need a thermowell for the SF5VBM25?
- A: It is strongly recommended to use a Bimetal Socket (Thermowell) to protect the stem from pressure and to allow the thermometer to be replaced without shutting down the process.