Chromate 4300 - Safety Grounding and Power

ChroMate™ ChroMate™ Operator’s Manual Doc. 4300 Rev. E 11
Safety Grounding
Do not alter or defeat the safety grounding methods provided. To avoid the risk of electric
shock, the third prong of the AC power plug must be connected to conductive parts
internal to the equipment. Internal fasteners to grounding points are marked by the IEC
417 symbol 5019
. DO NOT loosen or remove these fasteners or connections. An
alternate method of grounding is provided by connecting the grounding terminal located
on the rear panel, to a suitable ground.
To avoid electric shock, the power cord protection ground conductor must be connected
to ground.
Assure Clean Power Availability
The circuit used should be substantially free of large voltage transients (Kilovolt amp
loads) such as large pumps, large centrifuges, refrigerators and freezers, air
conditioners, large autoclaves, ovens, and dryers. The instrument may fail to operate
normally if the power supply is interrupted. If this occurs, turn the instrument off for a
moment. When the instrument is turned back on, it will resume normal operation, but a
standard curve which was not stored in non-volatile memory will be lost.
Fuse Requirements
The fuses are located internally in the instrument; there are two fuses. Fuse number 1 is
located on the main printed circuit board near power connector J4. It is a 4 Amp, medium
acting, 250V, 5 x 20mm, Littlefuse type 0234004 or equivalent. Fuse number 2 is located
on the power supply. It is a 2.5 Amp, fast acting, 250V, 5 x 20mm, Littlefuse type
21602.5P or equivalent.
Fuse failure is a very rare occurrence and may indicate malfunction of the equipment
requiring service by qualified personnel.
Warning!
Avertissement!
FUSE
FUSIBLE
Warning! For continued protection against risk of fire, use
the correct fuse. Disconnect power cord from mains supply
before replacing fuses.
Avertissement! Pour la protection continue contre le risque
du feu, remplacez le fusible seulement par une du type
spécifique et des estimations courantes. Démontez
l’équipement de l’alimentation d’énergie avant de
remplacer le fusible.