Fluke 2620A, 2625A user manual 1. Configuration Reset Settings, cleared for all channels

Models: 2625A 2620A

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Operating the Instrument from the Front Panel

3

Channel Configuration

Table 3-1. Configuration Reset Settings

Perform a Configuration Reset to restore these conditions by pressing and holding Cwhile cycling

POWER ON.

Channels 0 - 20:

OFF.

Measurement rate:

Slow.

Scaling (M):

1 (all channels)

(B):

0 (all channels)

Alarm parameters:

Limit-1 and Limit-2 OFF.

 

All limit values 0.

Alarm assignments:

Channels 0-3 assigned to outputs 0-3 respectively.

 

Channels 4-20 assigned to digital I/O lines 4-7, as follows

 

(appropriate channels are OR’ed to drive each I/O line):

 

DIGITAL I/O LINE

 

 

4

 

 

 

 

 

 

ASSIGNED TO

 

4

 

 

 

 

 

CHANNELS

 

8

 

 

 

 

12

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

20

 

 

 

 

 

 

 

 

 

Scan interval time:

0:00:00 (continuous)

 

Review values (MIN, MAX, LAST):

cleared for all channels.

 

 

Digital I/O lines:

set high (non-alarm)

 

 

Totalizer:

0, with debounce disabled.

Autoprint:

OFF.

 

 

Memory Storage (2625A only):

OFF, empty

 

 

RTD R0 parameter:

100.00 (all channels)

 

 

Open Thermocouple Detection (OTC):

enabled.

 

 

 

 

 

 

 

5

5

9

13

17

6

6

10

14

18

7

7

11

15

19

Note

During a scan, a channel set up with autoranging will momentarily slow the scanning rate whenever the correct range must be determined. This will occur during the initial scan, with the instrument remembering the range for subsequent scans. Scans then occur at the normal measurement rate. If the input signal later changes sufficiently, the scanning rate will again slow momentarily while the instrument determines the new range.

AC voltage measurements can be made over a wide range of frequencies. The instrument’s true rms converter insures accuracy for both sine wave and non-sine wave signals. Refer to Chapter 5 for additional information about true rms measurements.

Resistance measurements can be made to determine either resistance or the value of another directly related parameter. Slide wire potentiometers, thermistors, and other sensors with variable resistance outputs are often used to indicate temperature, position, and other physical parameters. The instrument measures resistance by passing a current

3-5

Page 47
Image 47
Fluke 2620A, 2625A user manual 1. Configuration Reset Settings, Channels 4-20 assigned to digital I/O lines 4-7, as follows