45

Users Manual

Neither function modifiers (REL, dB, HOLD, and MN MX) nor the manual range mode can be selected in the secondary display. Measurement ranges in the secondary display are always selected through autoranging.

Input Terminals

The input terminals, shown in Figure 3-4, are located on the left of the front panel.

The meter is protected against overloads up to the limits shown in Table 3-1. Exceeding these limits poses a hazard to both the meter and operator.

Volts, Ohms, Diode Test Input Terminal

V

10A

 

600V CAT I

!

1000V CAT I

 

COM 100 mA

FUSE F1

500 mA F 250V

FUSED

Amperes Input Terminal. For Current Measurements up to 10A continuous (or 20A for 30 sec).

Milliamperes Input Terminal. For Current Measurements up to 100mA.

 

 

 

 

45 DUAL DISPLAY MULTIMETER

 

 

 

V

 

10A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

600V CAT I

!

 

 

 

 

 

 

CAL

1000V CAT I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENABLE

COM

 

100

 

 

 

 

 

 

 

mA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FUSE F1

V

A

 

 

REL

dB

2ND

 

500 mA

 

 

 

 

 

 

 

 

 

 

 

F 250V

 

 

 

 

REF#

REF

LOCAL

FUSED

V

A

FREQ AUTO

 

 

 

 

 

 

 

HOLD

MN MX

RATE

 

 

 

 

 

 

 

 

 

 

COMP

HI

LO THRESH

ADDR

BAUD

POWER

Note: Frequency Measurements are Normally taken

from the V Input, although the 10A and 100mA Inputs can be used.

Common Terminal. Return Terminal for all Measurements.

aam12f.eps

Figure 3-4. Input Terminals

3-4

Page 31
Image 31
Fluke 45 user manual Input Terminals

45 specifications

The Fluke 45 is a versatile and high-precision Digital Multimeter that is designed for a wide range of applications in electrical testing, troubleshooting, and maintenance. Known for its reliability and advanced features, the Fluke 45 is an essential tool for engineers, technicians, and professionals who require accurate measurement capabilities.

One of the standout features of the Fluke 45 is its ability to measure both AC and DC voltage and current. With a maximum input voltage of 1000 volts and current ranges up to 10 amps, users can conduct a variety of electrical tests with confidence. The device is equipped with an intuitive dual display, allowing for simultaneous viewing of multiple measurements. This feature enhances usability during complex diagnostics.

The Fluke 45 also boasts an impressive resolution of 0.1 mV and a basic accuracy of 0.25%, which translates to highly reliable readings. The auto-ranging capability simplifies the measurement process, automatically selecting the appropriate range based on the input signal, thus saving time and reducing user error.

In addition to voltage and current measurements, the Fluke 45 features resistance measurement capabilities, with a range of up to 40 MΩ. This makes it an effective tool for testing circuits, identifying faults, and ensuring the integrity of electrical systems. The continuity test function, complete with a built-in beeper, assists in quickly diagnosing wiring issues.

Another remarkable characteristic of the Fluke 45 is its frequency measurement capabilities, which can measure frequencies up to 1 MHz. This is particularly useful in applications involving signal analysis and troubleshooting oscillators.

Moreover, the Fluke 45 is designed with user convenience in mind. It is lightweight and portable, making it easy to carry around, whether on a job site or in a workshop. The rugged construction, reinforced with high-quality materials, ensures it can withstand harsh conditions often encountered in the field.

To enhance functionality, the Fluke 45 features a data hold function that freezes the displayed measurement for easier reporting. Additionally, it can store data for later retrieval, making it convenient for users who need to compile test results over time.

In summary, the Fluke 45 Digital Multimeter is an advanced instrument that combines precision, versatility, and user-friendly design. Its wide measurement capabilities, high accuracy, and durable build make it an invaluable tool for professionals in diverse electrical and electronic applications. Whether for routine maintenance or complex troubleshooting, the Fluke 45 stands out as a reliable partner in achieving accurate and efficient results.