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Model 415E
Section II
Paragraphs 2-1 to 2-16
SECTION II
PREPARATION FOR USE
2-1. INCOMING INSPECTION.
2-2. This instrument was inspected both mechanically
and electrically before shipment. To confirm this, the
instrument should be inspected for physical damage in
transit. Also check for supplied accessories, and test
the electrical performance of the instrument, using
the procedure outlined in Paragraph 5-3.
If there is
damage or deficiency, see the warranty on the inside
front cover of this manual.
2-3. INSTALLATION.
2-4. The Model 415E is fully transistorized; therefore
no special cooling is required.
However, the instru¬
ment should not be operated where the ambient tem¬
perature exceeds 55 °C (140°F).
2-5. RACK MOUNTING.
2-6. The Model 415E is a submodular unit that when
used alone can be bench mounted only. However, when
used in combination with other submodular units it can
be bench and/or rack mounted. The hp combining case
and adapter frame are designed specifically for this
purpose.
2-7. COMBINING CASE.
The combining case is a
full-module unit which accepts varying combinations
of submodular units.
Being a full-module unit, it can
be bench or rack mounted analogous to any full-module
instrument.
An illustration of the combining case is
shown in Figure 2-1.
Instructions for installing the
Model 415E in a combining case are given graphically
in Figure 2-2.
2-8. ADAPTER FRAME. The adapter frame is arack
frame that accepts any combination of sub-modular
units. It can be rack mounted only. An illustration of
the adapter frame is given in Figure 2-3. Instructions
are given below:
a. Place the adapter frame on edge of bench as shown
in step 1, Figure 2-4.
b. Stack the sub-modular units in the frame as shown
in step 2, Figure 2-4.
Place the spacer clamps be¬
tween instruments as shown in step 3, Figure 2-4.
c. Place spacer clamps on the two end instruments
(see step 4, Figure 2-4) and push the combination into
the frame.
d. Insert screws on either side of frame, and tighten
until sub-modular instruments are tight in the frame.
e. The complete assembly is ready for rack mounting.
2-9. THREE-CONDUCTOR POWER CABLE.
2-10. To protect operating personnel, the National
Electrical Manufacturers' Association (NEMA) rec¬
ommends that the instrument panel and cabinet be
grounded.
All Hewlett-Packard instruments are
equipped with a three-conductor power cable which,
when plugged into an appropriate receptacle, grounds
the instrument.
The offest pin on the power cable
three-prong connector is the ground wire.
2-11. 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
pigtail on the adapter to ground.
2-12, PRIMARY POWER REQUIREMENTS.
2-13. The Model 415E can be operated from an AC or
DC primary power source. The AC source can be either
115 or 230 volts, 50 to 400 cps.
The DC source is a
24-volt rechargeable battery.
The rechargeable bat¬
tery is supplied with option 01 instruments only.
2-14. For operation from AC primary power, the in¬
strument can be easily converted from 115- to 230-
volt operation.
The LINE VOLTAGE switch, SI, a
two-position slide switch located at the rear of the in¬
strument, selects the mode of AC operation.
The line
voltage for which the instrument is set to operate ap¬
pears on the slider of the switch. A 1/16-ampere, 250
volt fuse is used for both 115- and 230-volt operation.
CAUTION
DO NOT CHANGE THE SETTING OF THE
LINE VOLTAGE SWITCH WHEN THE IN¬
STRUMENT IS OPERATING.
2-15. INITIAL BATTERY CHECK.
2-16. The following applies to option 01 instruments
or instruments that have field - installed batteries.
When the battery is used as the power source for the
first time, perform the following steps:
Figure 2-3. Adapter Frame Instrument Combinations
02152-1
2-1
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