Product details
Product Description
3RBM Series Bimetal Thermometer | Rear Connect | 3″ Dial | Weiss Instruments
The 3RBM Series Bimetal Thermometers by Weiss Instruments are precision-engineered devices designed for accurate temperature measurement in industrial HVAC and process applications. Featuring a rear connection and 3-inch dial, these thermometers provide clear visibility and reliable performance in demanding environments.
Built with a hermetically sealed stainless steel case, the 3RBM series ensures durability and resistance to harsh conditions. The precision-formed bimetallic sensing element with silicone dampening delivers fast response and stable readings.
With multiple temperature ranges and stem lengths available, this series offers flexibility for various industrial installations including HVAC systems, oil & gas, and process equipment.
Key Features
- 3″ dial size for clear readability
- Rear connection design
- High accuracy ±1.0% (ASME B40.200 Grade A)
- Durable 304 stainless steel construction
- Hermetically sealed case
- Precision bimetallic sensing element
- External recalibrator for adjustment
- Wide temperature range options
- Suitable for industrial environments
Technical Specifications
Common Specifications
| Specification | Details |
|---|---|
| Series | 3RBM |
| Brand | Weiss Instruments |
| Type | Bimetal Thermometer |
| Dial Size | 3″ |
| Connection Type | Rear Connect |
| Case Material | 304 Stainless Steel (Hermetically Sealed) |
| Ring | 304 Stainless Steel |
| Window | Heavy Strength Glass |
| Dial | White Aluminum with Black Markings |
| Pointer | Adjustable Aluminum |
| Stem Material | Stainless Steel (300 Series) |
| Connection Size | 1/2″ NPT |
| Accuracy | ±1.0% Full Scale |
| Ambient Temp | -40°C to 120°C |
Temperature Range Options (Variants)
| Code | Temperature Range (°F / °C) |
|---|---|
| 120-LT | -80 to 120°F / -60 to 50°C |
| 120 | -20 to 120°F / -30 to 50°C |
| 130 | 30 to 130°F / 0 to 55°C |
| 200 | 0 to 200°F / -15 to 90°C |
| 250 | 0 to 250°F / -20 to 120°C |
| 300 | 50 to 300°F / 10 to 150°C |
| 400 | 50 to 400°F / 10 to 200°C |
| 550 | 50 to 550°F / 10 to 260°C |
| 800 | 100 to 800°F / 40 to 425°C |
| 1000 | Up to 1000°F / 540°C |
Stem Length Variants
| Model | Stem Length |
|---|---|
| 3RBM25 | 2.5″ |
| 3RBM4 | 4″ |
| 3RBM6 | 6″ |
| 3RBM9 | 9″ |
| 3RBM12 | 12″ |
Applications
- HVAC systems
- Industrial process equipment
- Oil & gas industry
- Petrochemical plants
- Food processing
- Water & wastewater systems
- Heavy industrial environments
Frequently Asked Questions (FAQs)
Q1: What is 3RBM Series used for?
It is used for temperature measurement in industrial and HVAC systems.
Q2: What connection type does it have?
It uses a rear connection with 1/2″ NPT.
Q3: What sizes are available?
It comes with multiple stem lengths from 2.5″ to 12″.
Q4: How accurate is it?
It provides ±1.0% full-scale accuracy.
Q5: Can it be used in harsh environments?
Yes, it has a stainless steel sealed body for durability.
