Readout

3.3.5

(Cont'd)

A. Readout

The readout displays the accumulated number of coincidences between the input signal and the -

PRESET COUNT size setting of the front panel switches.

The number displayed, therefore, represents the number of groups (or batches) of the input signal

that have been accumulated within the counting period.

B. PRESET COUNT Size (Prescale)

The following describes the front panel switch settings and the corresponding prescale ranges.

Note that the thumbswitch decimal point is ignored in this mode. The multiplier toggle switch

should always be placed in the X1 position unless it is necessary to expand the maximum capacity

of the thumbswitches by the additional factors of X10, X100 or X1000.

Toggle Sw.

Thumbswitch

Total Prescale

Setting

(Divisor)

.000001 to .000000

1 to 1,000,000

X10

.000001 to .000000

(1 to 1,000,000) X 10

X100

.000001 to .000000

(1 to 1,000,000) X 100

X1000

.000001 to .000000

(1 to 1,000,000) X 1000

An output pulse is generated each time the number of input pulses applied equals the total

prescale factor established by the thumbswitch setting and the toggle switch position. This pulse

train represents the number of preset counts (batches) accumulated by the counter and is the

signal counted by the totalizer section.

C. Other Front Panel Controls

The setting for all controls other than those described above is identical to that described for the

TIME-EXT. (Interval) mode (see Section 3.3.3).

D. Rear Panel Connections

Except for the input signals, listed below, all connections and gating features are identical to that

described for the TIME-EXT. (Interval) mode (see Section 3.3.5,D).

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