Input Power Requirements; Power Cable; Repackaging For Shipment - HP BENCH Series Operating And Service Manual

units are placed in the Rack Mounting Frame. The
Rack Mounting Frame is then fastened to the rack
frame.
2-15 INPUT POWER REQUIREMENTS
2-16 This power supply may be operated continu
ously from either a nominal 115 Volt or 230 Volt
50-400HZ power source. The unit as shipped from
the factory, is wired for 115 Volt operation. The
input power required when operated from a 115 Volt
power source at full load is:
Model Input Current
6213A and 6214A 0.29A
6215A and 6217A 0.25A
6216A and 6218A 0.25A
Input Power
28W
26W
26W
2-17 CONNECTIONS FOR 230 VOLT OPERATION
(Figure 2-3)
2-18 Normally, the two primary windings of the
input transformer are connected in parallel for op
eration from 115 Volt source. To convert the power
supply to operation from a 230 Volt source, the
power transformer windings are connected in series
as follows:
a. Unplug the line cord and remove the top
cover as described in Paragraph 5-3.
b. Remove the jumpers between taps 4-2 and
3-1. Solder a jumper between taps 3-2 on the input
power transformer Tl, see Figure 2-3.
c. Replace existing fuse with a 0.5 Ampere,
230 Volt fuse.
d. Replace existing line cord plug with a
standard 230 Volt plug.
2-19 POWER CABLE
2-20 To protect operating personnel, the National
Electrical Manufacturers Association (NEMA) recom
mends that the instrument panel and cabinet be
grounded. This instrument is equipped with a three
conductor power cable. The third conductor is the
ground conductor and when the cable is plugged
TRANSFORMER PRIMARY
CONNECTED FOR
115-VOLT OPERATION
TRANSFORMER PRIMARY
CONNECTED FOR
230-VOLT OPERATION
Figure 2-3. Input Power Transformer, Connections
into an appropriate receptacle, the instrument is
grounded. The offset pin on the power cable three-
prong connector is the ground connection.
2-21 To preserve the protection feature when oper
ating the instrument from a two-contact outlet, use
a three-prong to two-prong adapter and connect the
green lead on the adapter to ground.
2-22 REPACKAGING FOR SHIPMENT
2-23 To insure safe shipment of the instrument, it
is recommended that the package designed for the
instrument be used. The original packaging mate
rial is reusable. If it is not available, contact
your local Hewlett-Packard field otfice to obtain
the materials. This office will also furnish the ad
dress of the nearest service office to which the in
strument can be shipped. Be sure to attach a tag
to the instrument which specifies the owner, model
number, full serial number, and service required, or
a brief description of the trouble.
2-2