EG&G ORTEC 442 Panduan Pengoperasian dan Servis - Halaman 6
Jelajahi secara online atau unduh pdf Panduan Pengoperasian dan Servis untuk Alat Ukur EG&G ORTEC 442. EG&G ORTEC 442 16 halaman. Linear gate and stretcher
Halaman Cetakdiscriminator remains triggered while input level exceeds
adjusted sensitivity.
OUTPUT DELAY
Screwdriver potentiometer: adjusts
delay period from input pulse peak to start of output pulse;
range 0.3 to 3 fisec.
OUTPUT WIDTH
Screwdriver potentiometer, adjusts
width of the output pulse; range 0.5 to 5 iisec.
NORMAL/GATED Slide switch selects exclusion (Normal)
or inclusion (Gated) of external gating function.
GATE PERIOD Screwdriver potentiometer, adjusts dura
tion of gating control from leading edge of Gate Input
pulse; range 0.5 to 5 ^isec; includes test point for monitor
ing adjusted gate period.
OUTPUT DC ADJ
Screwdriver potentiometer, permits
adjustment of output dc level between ±1.5 V.
The following control is on the rear panel:
COINC/ANTICOINC Slide switch selects effective mode for
Gate Input function.
INPUTS
LINEAR INPUT
Type BNC connector, front panel.
Polarity Positive unipolar, or bipolar with positive portion
leading.
Amplitude -t-0.1 to -HO V; ±12 V maximum.
Rise Time 1 GO nsec to 10 jusec.
Impedance ~1000J2.
GATE INPUT
Type BNC connector, front panel, for
optiortal external control for switch-selectable coincidence
or anticoincidence mode triggering. Standard NIM slow
logic pulse, triggers selected gate function at +3 V (100 nsec
minimum width), protected to ±25 V.
OUTPUTS
OUTPUT
Front panel type BNC connector; furnishes
linear positive output pulses through Zq < 1J2; includes test
point.
Polarity Positive.
Amplitude +0.1 to +10 V, equal to peak of the accepted
linear input pulse.
Delay Adjust by front panel control; range 0.3 to 3 nsec
after input pulse peak.
Rise Time 300 nsec.
Width Adjusted by front panel control; range 0.5 to 5 /isec.
Impedance <1 fZ on front panel.
Nonlinearity <0.1% with pulse amplitude droop <0.5 mV/
jjsec.
Baseline Adjust ±1.5 V.
93J2 OUTPUT
Rear panel type BNC connector furnishes
the l inear positive output pulses through Zg = 93T2.
BUSY OUTPUT Rear panel type BNC connector furnishes
+5 V nominal through Zg < lOJiZ through al l periods when
input pulses cannot be accepted; may be used to control
external equipment or for monitoring internally created
dead time.
Busy +5 V nominal when l inear pulse cannot be accepted.
Not Busy 0 V nominal when l inear pulse can be accepted.
ELECTRICAL AND MECHANICAL
POWER REQUIREMENTS
+24 V, 69 mA; +12 V, 75 mA;
-24 V, 76 mA; -12 V, 14 mA.
WEIGHT (Shipping) 4 lb (1.9 kg).
WEIGHT (Net) 2 lb (0.9 kg).
DIMENSIONS
NIM-standard single-width module (1.35
by 8.714 in.) per TID-20893 (Rev.).
3. INSTALLATION
The 442 contains no internal power supply but is designed
for installation in a standard Bin and Power Supply, such
as one of the ORTEC 401/402 Series, which is intended
for rack mounting. Therefore if vacuum tube equipment is
operated in the same rack, there must be adequate cooling
air circulating to prevent any localized heating of the 442
transistorized circuits. The temperature of equipment
mounted in racks can easily exceed the recommended
maximum unless precautions are observed. The ORTEC
442 should not be subjected to temperatures in excess of
120°F(50°).
3.1. CONNECTION TO POWER
Always turn off power for the Bin and Power Supply
before inserting or removing any modules. The ORTEC
400 Series of modular instruments are designed so that it is
not possible to overload the Power Supply with a ful l
complement of modules in the Bin. Since, however, this
may not be true when the Bin contains modules other than
those of ORTEC design, check the Power Supply for any
overload conditions by testing the dc power levels after
al l modules are inserted.