Fluke user manual 2620A/2625A, Press Mto activate the Monitor function

2620A/2625A

Users Manual

Note

You cannot activate the Monitor function if the selected channel is set up as OFF; the instrument gives a long beep and ignores your request.

The "MON" annunciator comes on, and the instrument starts taking measurements on the selected channel. If you haven’t connected the input leads to a signal, the instrument simply displays a nominal noise reading; on channels set up to measure resistance, "OL" is displayed for overload. (The instrument also displays "OL", or "otc" for open thermocouple, when attempting to measure temperatures on channels to which no sensor has been connected.)

Press G, Dto scroll through other channels and take additional measurements. Note that the instrument automatically skips over channels that are not set up (i.e., those channels still set to "OFF").

Press Mto deactivate the Monitor function when you’re through. ( Mtoggles the Monitor function on and off.)

Next, press Qto activate the Scan function. The "Scan" annunciator comes on, and the instrument begins taking measurements on all the channels you’ve set up.

When the scan completes, the instrument normally then counts down the time interval remaining until the next scan is due. (the countdown appears on the right display.) However, if you performed a Configuration Reset, then the scan interval has been set back to 0:00:00. Under this condition, the instrument performs continuous scanning. Subsequent sections of the manual explain how to change the scan interval.

Even with the scan function on, you can still use the Monitor function to watch a channel:

Press Mto activate the Monitor function.

Press G, Dto change the monitor channel, as desired. (The instrument continues to take scan measurements in the background.)

Press Mto deactivate the Monitor function when you are through.

Similarly, press Qto deactivate the Scan function when you are through.

Viewing Minimum, Maximum, and Last Data Values

While taking scan measurements, the instrument also collects Minimum, Maximum and Last values for each channel. These values are stored in the "Review Array." You can examine the data in the Review array when the instrument is in Active Mode or Inactive Mode. If you are in Active Mode, (i.e. the Scan and/or Monitor functions are on), the instrument will continue to take measurements in the background while you examine the Review data.

Press Nto call up the Review array onto the display.

Use the four arrow buttons to examine different entries in the Review array. The arrow buttons move around in the Review array, as illustrated below.

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