HP Saw E4419B Uživatelský manuál stáhnout pdf (Strana 89)

HP4402.book : chapter2.fm 49 Fri Feb 12 15:32:45 1999

Power Meter Operation

Setting Measurement Limits

HP E4419B User’s Guide 2-49

Figure 2-14: Remote I/O TTL Outputs

To set the limits:

1. Press , . The current setting of the maximum and

minimum limits are displayed under the and softkeys

respectively.

2. To change either of these settings press the appropriate softkey.

The power meter displays the current value in a pop up window.

Modify this value (see below) until the desired value is displayed.

■ Use or to modify the digit on which the cursor is

currently positioned.

■ Use or to move to other digits.

3. To conﬁrm your choice press the appropriate measurement units.

Limits can be disabled and re-enabled simply by pressing

Pin Number Connection

1 none

2 Ground

3 Upper Window TTL Output

4 Lower Window TTL Output

5 TTL Input 1

6 TTL Input 2

7 Ground

8 Ground

1 2 3 4 5 6 7 8

Meas

Setup

Limits

Max Min

Limits Off On

1 2 ... 84 85 86 87 88 89 90 91 92 93 94 ... 203 204

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HP Saw E4419B Uživatelský manuál Strana 89