description Technical Overview
Zedeyes 412 Economy Bi-metal Thermometer
The Zedeyes 412 is an economical bimetal temperature gauge designed specifically for hot water systems, HVAC equipment, commercial appliances, and general machinery manufacturing. Often referred to as a hot water thermometer, it provides reliable, cost-effective temperature indication for liquids and gases across a wide operating range of −30 °C to +500 °C.
The 63 mm dial version is widely utilized in commercial coffee machines, food preparation equipment, and small boilers, while the 100 mm version serves larger HVAC collectors, tanks, and piping networks. Every Zedeyes 412 comes equipped with a protective thermowell that shields the sensing stem from high line pressures (up to 60 bar) and allows quick gauge replacement without draining the system.
Key Features & Benefits
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Dual-Function Protective Thermowell: Includes a removable brass (63 mm) or SS316 (100 mm) thermowell that isolates the stem from process pressure, enabling seamless replacement without interrupting plant operations.
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Cost-Effective Bimetal Precision: Delivers Class 2.0 measurement accuracy across broad temperature spans at an economical price point.
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Commercial Appliance Ready: Compact 63 mm size is ideal for direct integration into commercial espresso/coffee machinery, cooking equipment, and heating skids.
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High Pressure Resistance: Thermowell rating up to 60 bar ensures safe operation in high-pressure hydronic and steam loops.
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Wide Range Availability: Available in 13 standard scale ranges spanning sub-zero cooling to high-temperature heating applications.
Primary Applications
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HVAC & Hydronic Heating: Hot water boiler headers, radiator lines, and climate control collectors.
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Commercial Appliances & Cooking: Commercial espresso machines, industrial coffee roasters, fryers, and food service equipment.
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Tanks, Storage Vessels & Collectors: Process water tanks, solar thermal collectors, and expansion tanks.
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Machinery & OEM Equipment: Fluid utility lines, small compressors, and OEM equipment manufacturing.
| Specification | Details |
|---|---|
| Nominal Sizes | 63 and 100 mm |
| Temperature Ranges | −30 to +50, −30 to +60, −30 to +70, −20 to +120, 0 to +60, 0 to +100, 0 to +120, 0 to +160, 0 to +200, 0 to +250, 0 to +300, 0 to +400 and 0 to +500 °C |
| Maximum Thermowell Pressure | 60 bar |
| Temperature Element | Bimetal sensor |
| Storage and Transport Temperature | −20 to +60 °C |
| Accuracy | Class 2 |
| Window | Glass |
| Stem Material | Copper alloy |
| Stem Diameter | 9 mm |
| Thermowell Material – 412-63 | Brass |
| Thermowell Material – 412-100 | SS316 |
| Thermowell Diameter | 12 mm |
| Available Insertion Lengths | 40, 50, 100, 150, 200, 300, 400, 500 and 600 mm |
| Zero Adjustment | Yes, located at the bottom of the stem |
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