Videotek VTM-2000 Specifications download pdf (Page 79)

VTM-2000 Installation and Operation Handbook

5-1

Section 5 ♦ Alarm Descriptions

Setting Alarms

Limits are selected in the SETUP Menu by choosing a value using the UP/DOWN or

CURVED ARROW knobs, or the UP or DOWN Navigation buttons.

Sensitivity and Duration are two general terms used in the alarm menus:

• Sensitivity

Sensitivity is set by Consecutive Errored Samples (CES). When setting amplitude

limits, a noise spike can exceed the limit while the video amplitude can be within

the limit. With the CES set to a low number, a spike is detected and an alarm is

displayed. Set the CES to a higher number to ignore the fast spike. Each CES

occurs at 37ns intervals for SD. Use this as a guideline to select the appropriate

CES value.

Not all alarms have CES associated with them; in such cases, use the duration to

increase or decrease the general sensitivity.

• Duration

This value is used to determine how long an error must persist before it is reported.

Set the duration to 0 to cause an error to be displayed as soon as the CES value is

met.

1 2 ... 74 75 76 77 78 79 80 81 82 83 84 ... 115 116

No comments

Videotek VTM-2000 Specifications Page 79