HP HP 83491A, Руководство пользователя, Страница: 43 / 62

4-9
Reference
Electrostatic Discharge Information
Both types, when used together, provide a significant level of ESD protection.
Of the two, only the table-mat and wrist-strap combination provides adequate
ESD protection when used alone.
To ensure user safety, the static-safe accessories must provide at least 1 M
Ω
of
isolation from ground. Refer to Table 4-1 for information on ordering static-
safe accessories.
W A R N I N G These techniques for a static-safe work station should not be used
when working on circuitry with a voltage potential greater than 500
volts.
Reducing ESD Damage
The following suggestions may help reduce ESD damage that occurs during
testing and servicing operations.
• Personnel should be grounded with a resistor-isolated wrist strap before re-
moving any assembly from the unit.
• Be sure all instruments are properly earth-grounded to prevent a buildup of
static charge.
Table 4-1. Static-Safe Accessories
HP Part Number Description
9300-0797
Set includes: 3M static control mat 0.6 m
×
1.2 m (2 ft
×
4 ft) and 4.6 cm (15
ft) ground wire. (The wrist-strap and wrist-strap cord are not included. They
must be ordered separately.)
9300-0980 Wrist-strap cord 1.5 m (5 ft)
9300-1383 Wrist-strap, color black, stainless steel, without cord, has four adjustable
links and a 7 mm post-type connection.
9300-1169 ESD heel-strap (reusable 6 to 12 months).