HYDRA

Service Manual

Table 1-3. 2620A/2625A Specifications

The instrument specifications presented here are applicable within the conditions listed in the Environmental portion of this specification.

The specifications state total instrument accuracy following calibration, including:

∙A/D errors

∙Linearization conformity

∙Initial calibration errors

∙Isothermality errors

∙Relay thermal emf’s

∙Reference junction conformity

∙Temperature coefficients

∙Humidity errors

Sensor inaccuracies are not included in the accuracy figures.

Accuracies at Temperatures Other Than Specified

To determine typical accuracies at temperatures intermediate to those listed in the specification tables, linearly interpolate between the applicable 0oC to 60oC and 18oC to 28oC accuracy specifications.

Response Times

Refer to Typical Scanning Rate and Maximum Autoranging Time later in this table.

DC Voltage Inputs

Resolution

Range

300mV

3V

30V

300V

Slow

10μV

0.1 mV

1mV

10mV

Accuracy ±(% ±V)

Fast

0.1mV

1 mV

10 mV

0.1V

Range

300mV

3V

30V

300V

90 Days, Slow

0.026% + 20 μV

0.028% + 0.2 mV

0.024% + 2 mV

0.023% + 20 mV

18°C to 28°C

1 Year, Slow

0.031% + 20 μV

0.033% + 0.2 mV

0.029% + 2 mV

0.028% + 20 mV

1 Year, Fast

0.047% + 0.2 mV

0.050% + 2 mV

0.046% + 20 mV

0.045% + 0.2V

 

0°C to 60°C

 

 

1 Year, Slow

1 Year, Fast

0.070% + 20 μV

0.087% + 0.2 mV

0.072%

+ 0.2 mV

0.089%

+ 2 mV

0.090%

+ 2 mV

0.107%

+ 20 mV

0.090%

+ 20 mV

0.107%

+ 0.2V

 

Input Impedance

100 MΩ minimum in parallel with 150 pF maximum for all ranges 3V and below 10 MΩ in parallel with 100 pF maximum for the 30V and 300V ranges.

Normal Mode Rejection

53 dB minimum at 60 Hz ±0.1%, slow rate 47 dB minimum at 50 Hz ±0.1%, slow rate

Common Mode Rejection

120 dB minimum at dc, 1 kΩ imbalance, slow rate

120 dB minimum at 50 or 60 Hz ±0.1%, 1 kΩ imbalance, slow rate

Maximum Input

300V dc or ac rms on any range for channels 0, 1, and 11 150V dc or ac rms for channels 2 to 10 and 12 to 20 Voltage ratings between channels must not be exceeded

Crosstalk Rejection

Refer to "Crosstalk Rejection" at the end of this table.

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Fluke 2635A A/2625A Specifications, DC Voltage Inputs Resolution Range, Accuracy ±% ±V Fast, Days, Slow, Year, Fast
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2635A, 2625A specifications

The Fluke 2625A is a sophisticated data logger designed for a wide range of industrial and laboratory applications. This versatile instrument excels in capturing and monitoring temperature and voltage measurements with precision and reliability. One of its standout features is its ability to record data from various sensors, making it ideal for environments where comprehensive data acquisition is critical.

Equipped with a large LCD display, the Fluke 2625A provides clear and user-friendly access to real-time measurement data. Its graphical interface allows users to visualize trends and monitor readings easily, which significantly enhances usability. The device supports a variety of input types and can connect to thermocouples, RTDs, and other sensors, offering great flexibility for various measurement tasks.

The Fluke 2625A employs advanced measurement technologies that ensure accuracy in data logging. With a high sampling rate, it captures fast-changing signals while maintaining data integrity. The device features a built-in memory that allows for extensive logging, accommodating long-term monitoring tasks without requiring constant oversight. Users can set it to log data at specified intervals, offering customizable solutions for different monitoring needs.

Another significant characteristic of the Fluke 2625A is its robust communication capabilities. The device supports USB and RS-232 interfaces for easy connectivity with computers and other devices, making data transfer and analysis seamless. This feature is especially beneficial for users who need to compile or analyze large sets of data quickly.

Furthermore, the Fluke 2625A is designed with durability in mind. Its rugged construction makes it suitable for challenging environments, including those with high levels of vibration, dust, or moisture. This reliability ensures that the device can withstand the rigors of fieldwork while still delivering accurate measurements.

In summary, the Fluke 2625A is a powerful data logger that combines versatility, accuracy, and reliability. Its user-friendly interface, advanced measurement technologies, and robust design make it an essential tool for professionals in various industries, from manufacturing and HVAC to research and development. Whether monitoring temperature changes in a laboratory or assessing voltage levels in an industrial setting, the Fluke 2625A stands out as a trusted solution for effective data logging and analysis.
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