User manual

ALARM-24 Series User Manual P/N 821542 Rev-A

Wohler Alarm Profile Editor Installation and Operation

Section 2: Operation

Stereo: Alarm Profile Editor Screen (Continued)

Each Alarm Profile consists of five parameters:

Loss Amplitude: A threshold in dB (with respect to Digital Full Scale) below which Silence is deemed to be active.

Loss Duration: A qualifying period that the Loss Amplitude criteria has been met. When Loss Amplitude has been met for

Loss Duration then a Loss of Audio alarm condition has been met. The unit will then trip into and report that alarm.

Over(load) Amplitude: A threshold in dB (below Digital Full Scale) above which Over is deemed to be active.

Over(load) Duration: A qualifying period that the Over Amplitude criteria has been met. When Over Amplitude has been

met for Over Duration then an Overload Audio alarm condition has been met. The unit will then trip into and report that alarm.

Phase Duration: A period that average signal out of phase has to be met to trip an Audio Phase alarm condition.

Notice that the odd and even channels are "ganged together" for Stereo operation. By selecting profile 2 for channel 3, channel 4

also has that profile assigned to it.

Mono : Alarm Profile Editor Screen

In Mono, the Main Editor Screen is similar to the following:

Unlike Stereo, each channel is independent and the Phase option is not enabled.

Equipment Hook up and Data Download

• A "straight through" cable should be used for hookup between the PC running the Alarm Profile Editor and the unit receiving the

profile.

• To put the Wohler Alarm unit into Load Profile mode, remove power, set the rear panel Option Select BCD switch (Item E, page

14) to position 2, reapply power. The unit is then ready to receive its' new set of profiles.

• Click on the Update ALARM Unit button and the profile will load. The process should take less than a minute. During the

download process, the text Status (bottom left of the screen) will be replaced with a single line progress report of the download.

• Once the download is compete, remove power from the Alarm Unit, return the Option Select BCD switch to its previous setting

then reapply power.

• Download is complete.