HP Saw E4419B manual Checking for Limit Failures

Power Meter Operation

Setting Measurement Limits

To set the TTL Output:

1.Press SetupMeas , Limits , TTL Output . The current settings for the TTL Output are displayed under the TTL Output, Limits and Fail O/P softkeys.

2.To select whether the TTL output reflects an overlimit condition, under limit condition or both, press Limits . Use any of the four arrow keys to make a selection between OVER , UNDER , and EITHER on the pop up menu that appears.

3.To select whether a high or low level TTL output represents a limits failure, use the Fail O/P softkey to toggle between High and Low

TTL Outputs can be disabled and re-enabled simply by pressing

TTL Output Off On .

Checking for Limit Failures

Limit failures are displayed in the appropriate field in the measurement window on the power meter’s display as shown in Figure 2-14.

Note	The same limit fail field is used by both channel and window
	limits.

2-50 HP E4419B User’s Guide