Operating the Instrument from the Front Panel

 

THESE

 

F

 

 

 

E

 

 

 

E

 

E

 

D

 

E

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Channel Configuration

 

 

 

 

 

 

 

 

Table 3-6. RTD Temperature

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

 

Terminals

 

 

R0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(Ice Point)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ChannelG

 

 

 

FunctionG

 

 

 

(NoteG1)

 

 

 

(NoteG2)

 

 

(NoteG

3)

 

 

 

 

 

 

PRESS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BUTTONS:

D

 

 

 

D

 

 

D

 

 

D

 

 

JH

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TO SELECT FROM THESE CHOICES:

0

1

.

.

20

OFF

V DC

VAC

Ω

Hz

°C or °F

J

K

E

T

N R S b

C Pt

2T

4T

100.00

Completes selection and returns to Inactive Mode

Note 1. Pt selects RTD temperature measurement (DIN/IEC 751). See Table 3-5 for J, K, E, T, N, R, S, b, and C thermocouple selections.

Note 2. 4T not available on channels 0 and 11 through 20.

Note 3. R0 default is 100.00Ω. A unique R0 value can be set for each channel.

Note

Temperature units can be displayed in degrees Celsius (ºC) or Fahrenheit (ºF). To switch this setting between ºC and ºF, start with the instrument powered off, then press and hold Bwhile pressing POWER ON. The setting can also be changed through the Computer Interface with the TEMP_CONFIG command (refer to Chapter 4.)

RTD temperature measurement uses a resistance-temperature detector (RTD). RTDs, while usually larger and more expensive than thermocouples, are frequently used where accuracy, stability, and repeatability are important. The resistance of an RTD varies directly with the sensor temperature. Passing a current through this resistance generates a proportional voltage that can be accurately translated into a temperature reading. The instrument supports the DIN/IEC 751 RTD type.

Setting Alarms

Alarm Limits

Note

If you press Afor a channel that is OFF, an error beep will result. Therefore, for a new channel, use Fto define the channel's measurement function before selecting A.

Two alarm limits (Sand T) can be defined for each analog input channel. An alarm occurs when the measured value on the channel moves above the HI value or below the LO value. With the desired channel already selected from Inactive Mode, verify or change these limits using the procedure shown in Table 3-7. If necessary, refer to "Entering and Changing Numeric Values" for a more detailed description of the number changing technique used here.

3-9

Page 50 Page 52
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Image 51
Fluke 2620A, 2625A user manual Setting Alarms, Alarm Limits, RTD Temperature Type Terminals
Page 50 Page 52

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.
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