HP 214B User Manual

Model 214B
Adjustments
5-12
EQUIPMENT :
PROCEDURE :
ADJUSTMENTS
PERIOD ADJUST
Counter/Timer
50 Q Feedthrough
I WARNING I
High voltage dangerous to life .
2 148
=
c::::=I r::::..:=l c=::=::l ~
o Di O
0 0 0
a
0
TRIG . OU T
Figure 5- 1
Note:
If potentiometer R 1 07 has been replaced,
set the new potentiometer so that its resistance is
200 Q. Ne xt, fit the dial so that the' l' on the light
grey scale is exactly beneath the arrow. (It may be
necessary
to slightly readjust the dial when
specifications
cannot be reached).
CO UNTER / TIME R
/0
lJ
\0
o ~ ~ J
o 50 ~1
1. Connect equipment as shown in Figure 5- 1 and set 214B controls as follows :
MODE
..... .... .. . . . ... . . ... . NORM
PERIOD Range . . . .... . ... ..... ... 1m - 1m
PERIOD Vernier . .. . ...... . . . .. . 10
POSITION Range . . .
.... ... .. . ... lp - lOp
POSITION Vernier . .. ...... ... . .. . 1
DUTY CYCLE % ......... . ...... released
WIDTH Vernier .. ... ....... .. ... . 1
WI DTH Range . . . .... ....... .. .. lp - lOp
AMPLITUDE Range . .. ... . .. .. .. . 3 -1 0
AMPLITUDE Vernier .... ... . ...... *
INT LOAD .............. . . . ..... *
SLOPE ... ... ....... ... . .. . . .
DEL/ADV /D.P. . ..... ... ....... .. DEL
OUTPUT POLARITY
*
* = don't care
2. Ensure
that Period Vernier is exactly set to 10 (1 ms) and if necessary adjust
A 1 R69
(on Output Amplifier Board) for a counter reading of 1000 p.
Note: Du e to the influence of A 1 R69 on the width circuit, width and duty cycle
must
be readjusted by any adjustment of A 1 R69.
3. Set 214B Period Vernier exactly to 1 (.1 ms) and adjust A2R46 for 100 ps. ( ~ 1 %).
4. Repeat step 2 and step 3 and readjust if necessary.
5-3
Scans by Artekmedia => 2009

HP 214B Specifications

General

Brand	HP
Model	214B
Category	Portable Generator
Language	English