RTD Inputs, Common Mode and Normal Mode Rejection

Appendices

Specifications A

Input Impedance

100 MΩ minimum in parallel with 150 pF maximum

Common Mode and Normal Mode Rejection

See Specifications, DC Voltage Inputs

Cross-Talk Rejection

Refer to Appendix D

Open Thermocouple Detect

Small ac signal injection and detection scheme before each measurement detects greater than 1 to 4 kΩ as open. Performed on each channel unless defeated by computer command.

RTD Inputs

Type

DIN/IEC 751, 100e Platinum (385)

IEC 751, Amendment 1, 100 e Platinum (IPTS-68)

RTD				4 Wire Accuracy* (±°C)

Temperature	Resolution				18°C to 28°C

(°C)	Slow	Fast	90 Day		1 Year	1 Year
			Slow		Slow	Fast

0°C to 60°C

1 Year	1 Year
Slow	Fast

-200.00	0.02	0.1	0.06
0.00
0.00	0.02	0.1	0.09
100.00
100.00	0.02	0.1	0.10
300.00
300.00	0.02	0.1	0.14
600.00
600.00	0.02	0.1	0.19

* Sensor inaccuracies are not included

0.06

0.09

0.11

0.14

0.20

0.48

0.55

0.58

0.65

0.76

0.070.49

0.130.59

0.170.64

0.240.75

0.370.93

IEC 751, Amendment 1, 100 e Platinum (ITS-90)

RTD				4 Wire Accuracy* (±°C)

Temperature	Resolution			18°C to 28°C

(°C)	Slow	Fast	90 Day		1 Year	1 Year
			Slow		Slow	Fast

0°C to 60°C

1 Year	1 Year
Slow	Fast

-200.00	0.02	0.1	0.06
0.00
0.00	0.02	0.1	0.09
100.00
100.00	0.02	0.1	0.13
300.00
300.00	0.02	0.1	0.17
600.00
600.00	0.02	0.1	0.30

* Sensor inaccuracies are not included

0.06

0.09

0.13

0.18

0.31

0.48

0.55

0.60

0.69

0.87

0.070.49

0.130.59

0.190.67

0.280.79

0.481.04

A-5

2625A, 2620A 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.

Fluke 2620A RTD Inputs, Common Mode and Normal Mode Rejection, Open Thermocouple Detect, Type

Models: 2625A 2620A