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1502C MTDR User Manual
1–1
Operating Instructions
Overview
The 1502C front panel is protected by a watertight cover, in which the standard
accessories are stored. Secure the front cover by snapping the side latches
outward. If the instrument is inadvertently left on, installing the front cover will
turn off the POWER switch automatically.
The carrying handle rotates 325° and serves as a stand when positioned beneath
the instrument.
Inside the case, at the back of the instrument, is a moisture-absorbing canister
containing silica gel. In extremely wet environments, it might be be necessary to
periodically remove and dry the canister. This procedure is explained in the
1502C Service Manual.
The 1502C can be stored in temperatures ranging from –62° C to +85° C if a
battery is not installed. If a battery is installed and the storage temperature is
below –35° C or above +65° C, the battery pack should be removed and stored
separately (see 1502C Service Manual for instructions on removing the battery).
Battery storage temperature should be between –35° C to +65° C.
In the field, the 1502C can be powered using the internal battery. See Figure 1–1.
For AC operation, check the rear panel for proper voltage setting. The voltage
selector can be seen through the window of the protective cap. If the setting
differs from the voltage available, it can be easily changed. Simply remove the
protective cap and select the proper voltage using a screwdriver.
The 1502C is intended to be operated from a power source that will not apply
more than 250 V RMS between the supply conductors or between either supply
conductor and ground. A protective ground connection by way of the grounding
conductor in the power cord is essential for safe operation.
The AC power connector is a three-way polarized plug with the ground (earth)
lead connected to the instrument frame to provide electrical shock protection. If
the unit is connected to any other power source, the unit frame must be
connected to an earth ground. See Safety and Installation section.
CAUTION. If you change the voltage selector, you must change the line fuse to the
appropriate value as listed near the fuse holder and in the table below.
Handling
Powering the 1502C