Maintenance 6

Introduction

Introduction

6-1.

Maintenance for the 2640A/2645A instruments is limited to self-test error code explanations, cleaning, fuse replacement, performance test, calibration, and a listing of replacement parts. A Service Manual (PN 942615) is available for purchase.

Self-Test Diagnostics and Error Codes

6-2.

Self-test diagnostics are performed each time the instrument is powered up. Any errors encountered during this initial 5-second period are reported on the front panel, as shown below.

If you encounter an error code, refer to Table 6-1 for a brief description of the error. For all errors, try cycling the instrument power. If the error persists and you intend to repair the instrument yourself, refer to the Service Manual, PN 942615. Otherwise, package the instrument securely (using the original container, if available), and mail it to the nearest Fluke Service Center. Include a description of the problem. Fluke assumes no responsibility for damage in transit.

Error Code

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

Table 6-1. Self-Test Error Codes

Error Description

Boot ROM Checksum Error

Instrument ROM Checksum Error

Internal RAM Test Failed

Display Power-Up Test Failed

Display Not Responding

Calibration Constants Corrupted

A-D Not Responding

A-D Self-Test Failed

A-D Zero Offset Test Failed

A-D Reference Balance Test Failed

A-D Overload Detection Test Failed

A-D Open Thermocouple Detection Test Failed

Communication Parameters (e.g., baud, IP address) Corrupted

Ethernet Address Corrupted

Internal RAM Constants Corrupted

Ethernet Chip Test Failed

Uncalibrated or Calibration Incomplete

6-3

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Fluke 2640A, 2645A Introduction Self-Test Diagnostics and Error Codes, Error Code Self-Test Error Codes Error Description

2645A, 2640A specifications

The Fluke 2640A and 2645A are advanced bench multimeters that represent a significant leap in measurement technology, designed primarily for electrical engineers and technicians who require precision and reliability in their readings. These multimeters are built to cater to complex applications in manufacturing, research, and development.

One of the standout features of the Fluke 2640A and 2645A is their high accuracy. With specifications that can reach up to 0.0035% DC Voltage accuracy, users can trust that their measurements will be consistent and precise. This is especially critical in fields like automated test equipment (ATE) where exact measurements can be crucial for product quality and safety.

Both models incorporate a large, easy-to-read display, making it convenient for users to view measurement results clearly from a distance. They also feature a wide measurement range, capable of handling a variety of tasks, from basic voltage and current measurements to more complex tasks such as resistance and temperature measurements with appropriate sensors.

The multimeters also stand out with their advanced data logging capabilities. The Fluke 2645A, for instance, can store up to 10,000 readings, allowing for extensive data collection and analysis without the need for constant monitoring. This is beneficial for long-term studies or processes that require continual oversight.

Connectivity is another key characteristic. Both the 2640A and 2645A support USB and RS-232 interfaces, which enable easy integration with computers and other devices for seamless data transfer. This feature is important for engineers who rely on software for data analysis and visualization.

Another notable technology included in these models is the Fluke Connect app compatibility, which allows users to remotely monitor measurements from their smartphones or tablets. This capability provides added flexibility, enabling technicians to work hands-free while still keeping an eye on process measurements.

Additionally, the Fluke 2645A comes with a graphical display option, allowing users to visualize measurement trends over time. This graphical representation can be invaluable for diagnosing issues or observing patterns in data.

In conclusion, the Fluke 2640A and 2645A multimeters offer exceptional performance with their high accuracy, extensive data logging, connectivity options, and advanced visualization capabilities. These features make them indispensable tools for professionals in a variety of fields, ensuring that they can achieve reliable results in their measurement endeavors.