51 & 52 Series II

Maintenance

Maintenance

Replacing the Batteries

Refer to the safety information in Table 1 before replacing the batteries.

1.Turn off the thermometer if necessary.

2.Loosen the screw and remove the battery door.

3.Replace the three AA batteries.

4.Replace the battery door and tighten the screw.

Calibration

To ensure that the thermometer performs to its accuracy specifications, Fluke recommends that you calibrate the thermometer annually, starting one year after purchase.

To calibrate the thermometer, contact Fluke for the Service Center nearest you or follow the calibration procedure in the service manual listed in "Replacement Parts and Accessories."

Specifications

Environmental

Cleaning the Case and Holster

Use soap and water or a mild commercial cleaner. Wipe with a damp sponge or soft rag.

Operating Temperature

Storage Temperature

Humidity

10 oC to 50 oC (14 oF to 122 oF)

40 oC to +60 oC (40 oF to +140 oF)

Non condensing <10 oC (<50 oF)

95% RH: 10 oC to 30 oC (50 oF to 86 oF)

75% RH: 30 oC to 40 oC (86 oF to 104 oF)

45% RH: 40 oC to 50 oC (104 oF to 122 oF)

13

Page 17
Image 17
Fluke 52 Series, 51 Series user manual Maintenance, Specifications, Replacing the Batteries, Calibration

51 Series, 52 Series specifications

The Fluke 51 and 52 Series are renowned for their precision and reliability in temperature measurement, making them essential tools for professionals in various fields. Designed for HVAC technicians, process control engineers, and industrial maintenance personnel, these digital thermometers combine advanced technology with user-friendly features.

The Fluke 51 Series is a compact and versatile thermometer that delivers accurate temperature readings across a wide range. It features a single input with thermocouple compatibility, allowing users to measure temperatures from -200°C to 1372°C (-328°F to 2501°F). This range makes it suitable for various applications, from food processing to manufacturing. An easy-to-read dual display allows simultaneous viewing of the current temperature and the minimum, maximum, or average readings, enhancing data analysis during inspections or troubleshooting.

In contrast, the Fluke 52 Series offers advanced functionality with dual input capabilities, enabling users to measure the temperature from two different thermocouples at the same time. This feature is particularly useful for comparing inlet and outlet temperatures in HVAC systems or monitoring temperature differences in industrial processes. The 52 Series also includes a memory function, storing up to 99 data points for later review, which can streamline documentation and analysis.

Both series are equipped with a user-friendly interface featuring a simple keypad and intuitive navigation. Automatic shut-off and low battery indicators enhance the usability of these devices, ensuring that they are both efficient and dependable in professional settings.

Durability is a hallmark characteristic of the Fluke brand, and both the 51 and 52 Series thermometers are built to withstand harsh conditions. With a rugged design and high ingress protection, these instruments can endure dust, moisture, and temperature variations, making them reliable choices for fieldwork.

In summary, the Fluke 51 and 52 Series digital thermometers are distinguished by their accuracy, ease of use, and rugged construction. Their advanced features, such as temperature ranges, dual input capabilities, and data memory, cater to the needs of a diverse range of professionals. Whether in an HVAC system, an industrial environment, or any temperature-sensitive application, these thermometers provide the reliable performance that users expect from Fluke.