Thytronic NV10B - Oscillography Readings and Calculation

MEASURES, LOGIC STATES AND COUNTERS
74
NV10B - Manual - 04 - 2022
The record quantity is depending on settings of following parameters:
• Pre-trigger and post-trigger times
• Number of allocated channels.
By means of the following formula the record quantity may be evaluated:
where:
• N record quantity
• v
i
sampled measures
• v
RMS
analog measures (RMS)
• n
B
logic variables (2 up to 16 variables)
• t
pre
pre-trigger time interval
• t
post
post-trigger time interval
• f frequency
Example 1
With the following setting:
• Pre-trigger: 0.25 s
• Post-trigger: 0.25 s
• Sampled measures: u
L1
, u
L2
, u
L3
, u
E
• Analog measures: U
L1
, U
L2
, U
L3
, U
E
• Logic variables: K1, K2, K3, K4, K5, K6, IN1, IN2
up to 180 record can be stored if f = 50 Hz, since:
Example 2
With following setting:
• Pre-trigger: 0.5 s
• Post-trigger: 0.5 s
• Sampled data: u
L1
, u
L2
, u
L3
, u
E
• Analog measures: U
L1
, U
L2
, U
L3
, U
E
• Digital channels: K1, K2, K3, K4, K5, K6, IN1, IN2
up to 75 records can be stored if f = 60 Hz, since:
N
= int
(34 + 20 v
i
+ 4 v
RMS
+ n
B
)·
12000
(t
pre
+ t
post
)(s)
·
f (Hz)
50 (Hz)
= 180
(34 + 20 · 4 + 4 · 4 + 2) · (0.25 + 0.25)
N
= int
12000
·
50 (Hz)
50 (Hz)
= 75
(34 + 20 · 4 + 4 · 4 + 2) · (0.50 + 0.50)
N
= int
12000
·
50 (Hz)
60 (Hz)
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