NF DF 1906 - Preface; Daily Maintenance; Storage, Repacking, and Transportation

7.1 Preface
DF1906
7-2
7.1 Preface
The following maintenance tasks are required to keep the equipment in tip-top condition.
・ Operation Inspection Check whether the equipment operates correctly.
・ Performance Test Check whether the equipment satisfies the specified ratings.
・ Adjustment and Calibration If the ratings are not satisfied, adjustment and calibration will be
performed by NF Corporation to restore the original
performance.
・ Fault Repair If performance is not improved, NF Corporation checks the
cause and location of the fault, and carries out repairs.
This instruction manual describes easy performance testing procedures.
For advanced inspection, adjustment, calibration and fault repair, contact NF Corporation or one of our
agents.
The following measurement equipment is required for performance testing.
・ Oscilloscope Bandwidth: 50 MHz or more
・ Frequency counter Standard oscillator stability: within 0.5x10
-6
・ AC voltmeter (high accuracy type) TrueRMS type, accuracy: within ±0.2%,
Bandwidth: 50 kHz or more
・ AC voltmeter (wide band type) TrueRMS type, relative accuracy: within ±0.2%,
Bandwidth: 10 MHz or more
・ DC voltmeter Accuracy: within ±0.01%
・ Distortion meter Full scale： 0.1% or less, frequency range：100 kHz or more
7.2 Daily Maintenance
Install the DF 1906 in a location that satisfies the installation conditions.
Installation Conditions
 "Installation Conditions" in "2.2 Installation"
When the panel or case needs cleaning, wipe with a soft cloth. To remove persistent stains, wipe with
a soft cloth soaked with neutral detergent and wrung out.
Do not use any organic solvents like thinner or benzene, or any chemical cleaning cloth, as they may
cause the surface finish to deteriorate, tarnish, or come off.
7.3 Storage, Repacking, and Transportation
Store the DF 1906 in a location that satisfies the installation conditions.
Installation Conditions
 "Installation Conditions" in "2.2 Installation"
When repacking for transport, use a carton with adequate strength and enough space for sufficient
padding to withstand the weight and protect the equipment.
During transport, handle with care to avoid strong impacts.