Special Handling Of Static Sensitive Devices; Cleaning - Racal Instruments 3151 User Manual

Special Handling of
Static Sensitive
Devices

Cleaning

Maintenance and Performance Checks 5-2
MOS devices are designed to operate at very high impedance levels
for low power consumption. As a result, any normal static charge that
builds up on your person or clothing may be sufficient to destroy
these devices if they are not handled properly. When handling such
devices, use precaution to avoid damaging them as described below:
1. MOS IC's should be transported and handled only in containers
specially designed to prevent static build-up. Typically, these
parts are received in static-protected containers of plastic or
foam. Keep these devices in their original containers until
ready for installation.
2. Ground yourself with a suitable wrist strap. Remove the devices
from the protective containers only at a properly grounded
work station.
3. Remove a device by grasping the body; do not touch the pins.
4. Any printed circuit board into which the device is to be inserted
must also be grounded to the bench or table.
5. Use only anti-static type solder suckers.
6. Use only grounded soldering irons.
7. Once the device is installed on the PC board, the device is
adequately protected and normal handling may resume.
The Model 3151/3151A should be cleaned as often as operating
conditions require. To clean the instrument, use the following
procedure:
1 Thoroughly clean the inside and outside of the instrument.
2 When cleaning inaccessible areas, remove dust with low pressure
compressed air or a vacuum cleaner.
3 Use alcohol applied with a cleaning brush to remove accumulation
of dirt or grease from connector contacts and component
terminals.
4 Clean the exterior of the instrument and the front panel with a mild
detergent mixed with water, applying the solution with a soft,
lint-free cloth.
3151 And 3151A User Manual