51 & 52 Series II

Getting Started

Buttons

A

G

(Shift

function)

Q

M

C

h

T

Table 5. Buttons

Press Ato turn the thermometer on or off.

Press G, M(CANCEL) to stop displaying the minimum, maximum, and average readings in the secondary display.

Press Qto turn the backlight on and off. The backlight turns off after 2 minutes without any button presses. If the battery is low, the backlight is disabled.

Press Mto step through the maximum, minimum, and average readings. When viewing logged readings, shows the maximum, minimum, and average of the logged readings.

Press G, M(CANCEL) to turn off this display.

Press Cto switch between Celsius (oC), Fahrenheit (oF), and Kelvin (K).

Press hto freeze or unfreeze the displayed readings.

Press hwhen turning on the thermometer to test the display. All display elements appear.

Model 52: Press Tto toggle showing the T1, T2, and T1-T2 (differential temperature measurement) in the primary or secondary display.

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Fluke 52 Series, 51 Series user manual Buttons

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.