Specifications
1- 12
TLA721 Benchtop & TLA7XM Expansion Mainframe Service Manual
Table 1- 8: Benchtop and expansion mainframe cooling
Characteristic
Description
Cooling system
Forced air circulation system (positive pressurization) using a single low-noise
centripetal (squirrel cage) fan configuration with no filters for the power supply and 13
module slots.
Fan speed control
Rear panel switch selects between full speed and variable speed. Slot exhaust
temperature and ambient air temperature are monitored such that a constant delta
temperature is maintained.
Slot activation
Installing a module activates the cooling for the corresponding occupied slots by opening
the air flow shutter mechanism. Optimizes cooling efficiency by only applying airflow to
modules that are installed.
Pressurization
Positive pressurization system, all chambers including modules
Slot airflow direction
P2 to P1, bottom of module to top of module
Mainframe air intake
Lower fan-pack rear face and bottom
Mainframe air exhaust
Top-sides and top-rear back. Top rear-back exhaust redirected to the sides by the fan
pack housing to minimize reentry into the intake.
∆
Temperature readout sensitivity
100 mV/
°
C with 0
°
C corresponding to 0 V output
Temperature sense range
--10
°
C to +90
°
C, delta temperature
≤
50
°
C
Clearance
2 in (51 mm), rear, top, and sides
Fan speed readout
RPM = 20
¢
(Tach frequency) or 10
(+Pulse Width)
where (+Pulse Width) is the positive width of the TACH1 fan output signal measured
in seconds
Fan speed range
650 to 2250 RPM
Содержание TLA7XM
Страница 5: ......
Страница 13: ...Table of Contents viii TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 17: ...Service Safety Summary xii TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 21: ...Preface xvi TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 25: ...Introduction xx TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 43: ...Specifications 1 18 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 85: ......
Страница 87: ...Adjustment Procedures 5 2 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 131: ...Benchtop Controller Removal and Installation Procedures 6 44 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 137: ...Expansion Module Removal and Installation Procedures 6 50 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 161: ...Repackaging Instructions 6 74 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 165: ...Electrical Parts List 8 2 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 169: ...Diagrams 9 4 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...
Страница 189: ...Mechanical Parts List 10 20 TLA721 Benchtop TLA7XM Expansion Mainframe Service Manual ...