45

Users Manual

Table 4-2. Typical Single Measurement Response Times (in Seconds)

Meas.

Function

{

[

`

e

GR

FREQ3

Slow Rate

Auto

Single

Range1

Range2

1.000.60

2.200.80

0.600.50

0.600.50

1.400.60

0.500.50

1.200.50

Medium Rate

Auto

Single

Range1

Range2

0.800.40

2.000.60

0.400.30

0.400.30

1.200.40

0.300.30

1.200.50

Fast Rate

Auto

Single

Range1

Range2

0.300.10

1.000.30

0.200.10

0.500.30

0.400.10

0.100.10

0.700.30

1.Time to autorange a new measurement from the lowest to the highest range and to display the result.

2.Typical time to change to the next higher or lower range and display the result.

3.Frequency greater than 150 Hz. Refer to frequency measurement rates in Table 3-6.

Meas.

Table 4-3. Typical Settling Delays (in Seconds)

 

 

Settling Delay

 

 

 

 

 

 

Single Function or All AC or All

 

 

 

DC Type

 

AC & DC Types Mixed

 

 

 

 

 

Function

{

A

B

e

GR

FREQ

Range

All

All

All

All

300

3k

30k

300k

3M

30M

300M

NA

NA

Slow

0.30

1.00

0.30

1.00

0.30

0.30

0.30

0.70

0.70

1.40

1.60

0.70

0.50

Med

0.30

1.00

0.30

1.00

0.30

0.30

0.30

0.70

0.70

1.40

1.60

0.50

0.50

Fast

0.00

0.20

0.00

0.20

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.10

0.30

Slow

0.40

1.30

0.40

1.30

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

0.70

Med

0.40

1.30

0.40

1 30

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

0.70

Fast

0.00

0.20

0.00

0.20

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

0.30

For example, assume the meter has a 1 volt dc input and is taking measurements and updating the primary display on the 30 volt range (medium reading rate, autoranging off). If you then select the volts dc function for the secondary display, the meter will not use the same measurement to update both displays. It will autorange to the 3 volt range (the secondary display always autoranges) and take an additional measurement of the input (on the 3 volt range) for the secondary display.

4-6

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Fluke 45 user manual Slow Rate Auto Single Range1 Range2 Medium Rate Fast Rate, Slow Med Fast

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.