HP 214B User Manual

Model 2148
Adjustments
ADJUSTMENTS
5-14 CONSTANT DUTY CYCLE AND WIDTH
EQUIPMENT : Counter/Timer
50 n Feedthrough
I WARNING I
High voltage dangerous to life.
Note: If width potentiometer R222 has been replaced,
set the new potentiometer so that its resistance is 200 n.
Next, fit the dial so that the '1' on the light grey scale
Do not overload feed through or cou nter inputs.
21 48
=
C=-..::J r-..::.==J c::::=I c:::=:::J
0[ =:] 10
0
0 0
00
(
Figure 5-3
PROCEDURE:
is exactly beneath the arrow. (It may be necessary to
slightly readjust if specifications cannot be reached).
COUNTE R/ TIMER
~
o 0
50 l!
1. Connect equipment as shown in Figure 5-3 and set 2148 controls as follows:
MODE .. . ... ..... .... . ...... . NORM
PE R
100 Range . ............... .
PERIOD Vernier . .. .. . ......... . .
POSITION Range . .. . . . ... ... . . .
POSITION Vernier .......... ... . .
DUTY CYCLE % . . ....... . ... . .
DUTY CYCLE Range . . ... . .... .. .
DUTY CYCLE Vernier ..... . .... .
WIDTH
RANGE ... ......... .. .. .
lms - 10ms
10
O.lp - lp
1
depressed
1% - 10 %
10
AMPLITUDE Range ...... . . .. . .. 1-3V
AMPLITUDE Vernier . . . .......... as required
INT LOAD ... . . ... .... . ..... .
SLOPE ...... .. . . .. . .. . .... . .. *
DEL/ADV /D.P .. . ... .... . .. ... . . DEL
POLARITY ... . .... . . . ... ... .. POS
*
= don't care
NOTE: Period settings must be done by using the counter.
2. Set 2148 period to 10 OOOps.
3. Measur e time between positive and negative transition of 2148 output pulse and
adjust A2R51 for 100011s . (10 % duty cycle).
5-7
Scans by Artekmedia => 2009

HP 214B Specifications

General

Brand	HP
Model	214B
Category	Portable Generator
Language	English