Section 10
:
Verification
Series 3700 System Switch/Multimeter Reference Manual
10-2
Document Number: 3700S-901-01 Rev. A / August 2007
Verification test requirements
Be sure that you perform the verification tests:
Under the proper environmental conditions.
After the specified warm-up period.
Using the correct line voltage.
Using the proper test equipment.
Using the specified output signal and reading limits.
Environmental conditions
Conduct the calibration procedures in a location that has:
An ambient temperature of 18°C to 28°C (65°F to 82°F).
A relative humidity of less than 80%. unless otherwise noted.
Warmup period
Allow the System Switch/Multimeter to warm up for at least two hours before performing
calibration.
If the instrument has been subjected to temperature extremes (those outside the ranges stated
above) allow extra time for the instrument‘s internal temperature to stabilize. Typically, allow one
extra hour to stabilize a unit that is 10°C (18°F) outside the specified temperature range.
Also, allow the test equipment to warm up for the minimum time specified by the manufacturer.
Line power
The Series 3700 requires a line voltage of 100V-240V (±10%), and a line frequency of 50Hz or
60Hz.
NOTE
The line frequency is automatically sensed at power-up.
Recommended test equipment
The following table summarizes recommended verification equipment. You can use alternate
equipment as long as that equipment has specifications equal or greater than those listed in the
table. Note, however, that test equipment uncertainty will add to the uncertainty of each
measurement. Generally, test equipment uncertainty should be at least four times better (more
accurate) than corresponding Series 3700 specifications.
