HP 5326A - Page 12

Model 5326/27A
Installation
2-40. Remote Programming Procedure
2-41. In order to remotely program the counter, the
following must be done:
a. Set FUNCTION switch to any position but
START or STOP.
b. Ground the EXT line at rear-panel REMOTE
PROGRAM connector J 10(34). This disables the
front panel switches. Ground is available at J10(36).
c. Select the desired function.
d. Select the desired time base.
e. Select the signal conditioning.
f. Select the trigger level for input signal.
g. Adjust the display time.
h. Manual reset is available by ground (<.7 V)
pin 17. Check is available by grounding pin 37.
2-42. Function Selection Programming
2-43. To program the desired function, ground (<.7 V)
the proper line at J10 as follows:
STOP Pin 19
START
Pins 46, 19
PERIOD AVERAGE Pin 47
T.I. AVG.
Pin 45
T.I. A to B Pin 44
PERIOD
Pin 43
FREQ. A Pin 42
FREQ. C DIRECT Pin 41
FREQ C + 10
(5327A only)
Pin 33
2-44. Time Base Selection Programming
2-45. To program the time base, ground (<.7 V) the
proper line at J10 as follows:
.1 jis/1
Pin 28
1 /u,s/10
Pin 29
10 ms/10 2 Pin 27
.1 ms/10 3 Pin 26
1 ms/10 4
Pin 25
10 ms/10 5 Pin 24
.1 s/10 6 Pin 30
1 s/10 7
Pin 31
10 s/10 8 Pin 32
2-46. Signal Conditioning Programming
2-47. Program the input conditions by grounding the
proper line as follows:
CONDITION
LINE
J10
INPUT
AC/DC A
11 AC=H DC=L
SLOPE A
23 + = H * = L
ATTENUATOR A
13,14 13-H, 14 - H = XI
13-L, 14- H=X10
13-H, 14 - L= X100
AC/DC B
7
AC = H DC = L
SLOPE B
22
+ = H - = L
ATTENUATOR B
9, 10
9 - H, 10 - H = XI
9 - L, 10 -H = X10
9- H, 10 - L = X100
SEP/COM
6 COM = L, SEP = H
CHECK
37
CHK = L
2-48. Trigger Level Programming
2-49. To program the trigger level, the LEVEL con¬
trols must be set to PRESET. Select the trigger level
by placing a dc voltage between -3.0 and +3.0 volts
on the level input line (Level A = J10 pin 21, Level B
= J10 pin 20). This voltage, times the attenuator
setting, is the trigger level. Preset is programmed by
leaving the pin open or contact closure to ground.
Grounding is preferable if noise exists on the remote
programming line.
2-50. The front-panel LEVEL controls may be used
manually if programming of the trigger levels is
undesirable.
2-51. Sample Rate Adjustment
2-52. Adjusting the display time can be accomplished
in several ways:
a. Manually adjust the display time by using the
front-panel SAMPLE RATE controls.
2-4