|
Single Channel Analyzer Selection Guide
These charts are intended as selection guides only. For
complete and precise specifications, consult the data sheet for each model.
|
Model
No. |
550A |
551 |
552 |
590A |
850 |
|
SCA Output Trigger |
LLD reset |
Constant fraction (50%) |
Selectable constant fractions (2), or zero crossing |
Peak detect |
LLD reset |
|
Modes |
Asymmetric window, symmetric, window, normal or integral |
Window, normal, or integral |
Window, normal, or integral |
Window or integral |
Window, normal, or integral |
|
Lower-Level
Range (V) |
0.02 - 10
(10-turn) |
0.05 - 10
(10-turn) |
0.04 - 10
(10-turn) |
0.05 - 10
(10-turn) |
0.02 - 9.99 |
|
Upper-Level
Range (V) |
0 - 10 or 0-1
(10-turn) |
0 - 10 or 0-1
(10-turn) |
0 - 10 or 0-1
(10-turn) |
0 - 10 or 0 - 1
with internal jumper
(10-turn) |
0.02 - 9.99 |
|
Delay Range |
None |
0.1 - 1.1 µs
1 - 11 µs
(10-turn) |
0.1 - 1.1 µs
(10-turn) |
None |
None |
|
Input Coupling |
dc |
ac or dc |
dc |
Input directly coupled to amplifier output |
dc |
|
External
Strobe |
No |
Yes |
Yes |
No |
No |
|
External Baseline |
Yes |
Yes |
Yes |
Yes |
Yes |
|
Integral Non-
linearity
(%) |
≤±0.25 |
≤±0.25 |
≤±0.25 |
≤±0.25 |
≤±0.25 |
|
SCA Output Polarity |
Positive |
Positive and negative |
Positive and negative |
Positive |
Positive |
Single-Channel Analyzer
Applications Guide
| Model |
Recommendations |
| 550A |
Versatile, economical,
general-purpose counting. |
| 551 |
SCA plus constant-fraction
timing. |
| 552 |
SCA plus constant-fraction
timing and pulse-shape analysis. |
|
590A |
Cost efficient, includes
built-in amplifier. |
| 850 |
Economical, four SCAs in a
single-width module for general-purpose counting. |
| 
