MT8852B Operation Manual PN: 13000-00205 Rev. N 3-1
Chapter 3 — Preparation for Use
3-1 Operating Environment
The MT8852B is designed to operate within the temperature range of 5 to 40C with a
maximum humidity of 90% at 40C, non-condensing. Full accuracy is specified at 5 to 35C.
Although not recommended, operation in temperatures to -20C is possible. At these
temperatures, however, the liquid crystal display may exhibit excessively slow response.
3-2 Power Requirements
The MT8852B is operated from an AC line power. The MT8852B is intended as an
Installation (Overvoltage) Category II, Insulation Category I device.
AC Line Power
The MT8852B operates on AC input power of 85-264V, 47-63 Hz, 150 VA maximum. The
MT8852B automatically configures itself for the voltage applied. An internal fuse protects
the AC line input.
Fuses
The MT8852B is protected on the AC input by an internally mounted fuse. Only qualified
service personnel should change this fuse. Replace only with a fuse of the same type and
rating: 5 mm x 20 mm, 250V, 2.5A T (T= time lag or slo-blo).
Grounding
The MT8852B must be properly grounded. Failure to ground the instrument could be
hazardous to operating personnel. The instrument is supplied with a three-wire power cord.
The instrument is properly grounded when the plug is correctly installed in a grounded
receptacle. A grounding terminal is provided on the instrument’s rear panel (see figure 4-2).
Caution
The instrument is cooled by a fan at the rear that circulates air through the vent
holes in the base. The fan and the vent holes should be clear of obstructions at all
times regardless of whether the instrument is used as a stand-alone unit or
mounted in an equipment rack.
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