Heathkit im-5210 User manual

Instructions
FOR THE
I
I 40 KV PROBE METER
MODEL IM-5210
I
I
I
I
INTRODUCTION
I The Heathkit Model IM-5210
40 kV Probe Meter is a
Refer to the "Kit Builders Guide" for information on tools ,
convenient, self-contained probe that
measures extremely
wiring , and soldering.
high DC voltages up to 40,000 volts.
The on-off switch mounted on the handle protects the meter
during transportation and hookup.
Copyrighl C1 1975
H. lm Co ~ n y
595-1684 -02
Allnih"" MYId

Page 2
PARTS LIST
Check each pa rt against the followi '., list. To
order a replacement part : Use the Parts Order Form
furnished with this kit. For prices, refer to the separate
" Heath Parts Price List."
OTY. DESCRIPTION PART CIRCUIT
No . Component No.
CAUTION: Do
not unpack or handle the 800 MD resistor
until you are instructed to do so in a step. Moisture from
your fingers can change its resistance, and thus affect its
accuracy.
-1 800 MD,
1/2·watt, 2% 2-
331
R1
resistor
Slide switch 60-14
SW1
Rubber insulator
73 - 21
H,ndle top }
Handle bottom
95-606
Handle
tip
2 6-32 x
5/16" flat head 250-274
screw
2
#6 x 5/8" self-tapping 250-559
screw
2 # 2 x
1/4" self-tapping 250-582
screw
2 # 6 lockwasher 254-1
2 Spade lug 259-32
Alligator cl ip 260-1
Large black
wire
341-1
Small black
wire
344-90
Red wire 344-92
Meter 407-196
M1
Hex stud 455-637
Probe
tip
477-12
Switch label
Heathkit nameplate
Nut starter
Blue
and white label
390-1194
390-1108
490-5
391-34 I
~1
I
Parts Order
Form
597-260
Kit Builders Guide 597-308
Instructions
(See
first page for
part number.)
Solder /
..
( / / 1
)
I
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/
/
'

Page 5
OPERATION
WARNING: HIGH VOLTAGES ARE EXTREMELY
DANGEROUS. NEVER MEASURE DC VOLTAGES IN
EXCESS OF 40,000 VOLTS.
This
probe is designed to permit high voltage measurements
to be made as safely as possible. However, ALWAYS MAKE
SURE
THAT THE GROUND CLIP IS CONNECTED TO
THE CHASSIS
OF THE UNIT UNDER TEST AND THAT
THE SWITCH ON THE PROBE IS IN THE OFF POSITION
WHEN YOU ARE NOT MAKING AN
ACTUAL
MEASUREMENT. While the conductors inside the handle
and ground lead never have more than about a tenth of a
volt across
them when properly connected, these parts will
be
exposed to the full voltage under test if the ground lead is
not connected to the chassis.
Whenever possible,
contact the high voltage terminal under
test with the power turned off. Then turn the power on,
sl ide the probe switch to the on position, take the reading,
sl ide the probe switch to the off position, turn the power
off,
and remove the probe from the circuit under test.
Be sure the slide switch is in the OFF position when the
Probe is not in use.
IN CASE OF DIFFICUL TV
Most kits returned for repair, do not function properly due
to poor solder connections. Therefore, many troubles can be
eliminated if you carefully inspect all
the connections to
make sure they are soldered as described in the "Soldering"
section of the "Kit Builders Guide." Reheat any doubtful
connections and be sure all the wires are soldered at places
where several wires are connected. Recheck the wiring.
Trace each lead
in colored pencil on the Pictorial as it is
checked. It is frequently helpful to have a friend check your
work. Someone who is not familiar with the kit may notice
something you have consistently overlooked.
NOTE:
In an extreme case where you are unable to resolve a
difficulty, refer
to the "Customer Service" information in
the "Kit Builders Guide."
SPECIFICATIONS
Voltage Range. . . . . . . . . . . . . . . . . . . . . . . .. 0 - 40 kVDC.
Accuracy ±3%
of full scale.
Size .
15" long x 1-7/8" wide x 1·1/2" high.
Weight 8 oz.
• • • • •
The Heath Company reserves the right to discontinue
products and to change specifications at any time without
incurring any obligation to incorporate new features in
products previously sold.

Page 3
STEP-BY-STEP ASSEMBLY
HEATHKIT
NAMEPLATE
J
J
CLI P
INSUL
ATOR
PICTORIAL 1
( ) Mount the meter in the handle top with the hardware
supplied with the meter. Position the meter so that the
meter scale is away from the switch. CAUTION : Do
Refer
to Pictorial 1 for the following steps.
not overtighten the meter hardware. This can damage
th e meter case.
( ) Mount
the slide switch in the handle top with two
6·32 x 5/16" screws. Position the switch as shown. NOTE:
As you prepare lengths of wire, as in the following
step, first
cut the wire to the indicated length and remove
NOTE: The Heath
Company has provided a plastic nut
1/4" of insulation from each end. Then twist together the
starter with this kit. Use the nut starter to hold and start the
small strands of wire at each wire end and melt a small
nuts in
the next step .
amount of solder on these bare wire ends.
J
LA RG E
BL A CK WI RE

• •
Page 4 ~~tllliI;gl
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( ) Prepare the following lengths of wire: NOTE:
In the next step, do not handle the resistor with
3" small black
3" red
3-1/2" small black
48" large black
your bare hands. Finger prints can
enough
to cause inaccurate readings.
between your hands and the resistor.
change the resistance
Use a
soft dry cloth
( ) Tie an overhand knot in the long black wire 4-1/2"
from one end. Position the knot around the boss.
( ) Insert
one end of the 3" small black wire and one end
of the 3" red wire into the open tabs of a spade lug_
Then bend the tabs over both wire ends and solder the
connection. The free ends of the two wires will be
connected later.
( ) Similarly,
connect the end of the 48" large black wire
with
the knot and one end of the 3-1/2" small black
wire
to the other spade lug.
( ) Remove
and discard the shorting wire from between
the meter terminals.
NOTE: When you
connect a spade lug to the meter
terminals in the following steps, loosen the terminal screw,
slide
the spade lug onto the screw under the washer, position
the lugs so that the wires are toward the switch, and then
retighten the screw.
( )
Connect the spade lug, with red wire, to the positive
(+) terminal of the meter.
( )
Remove and discard the screw and lockwasher, if any,
from each end of the 800 1It1.Q resistor.
Place a
#6 lockwasher onto the threaded end of the
hex stud and thread the 800 M.Q resistor onto the hex
stud.
( ) Place a #6 lock washer onto the threaded end of the
probe tip. Then thread the tip onto the free end of the
800 M.Q resistor.
SI ide the handle tip over the probe tip and resistor.
Secure it to the handle top and bottom with two #2 x
1/4" self-tapping screws.
Install a
rubber insulator and alligator clip on the free
end of the long black wire. Be sure the insulator is
positioned as shown; then solder the connection .
Carefully peel
away the paper backing from the switch
label.
Then press the label onto the handle top, over
the switch. Position the label so that the word "ON" is
toward the meter.
NOTE: The blue and white label that you will install in the
( ) Connect the other spade lug, with the two black wires, following
step shows the Model number and Series number
to the negative (-) terminal of the meter.
of your kit. Refer to these numbers in any communications
you have with the Heath Company about this kit.
( )
Connect and solder the free end of the red wire to lug
2
of the switch.
Carefully peel
away the paper backing from the blue
( )
Connect and solder the free end of the small black
and white label. Then press the label onto the first
wire
coming from the negative (-) terminal of the
page
of these instructions.
meter, to lug 1 of the switch.
( ) Carefully peel the paper backing from the Heathkit
( ) Remove an additional 1/4" of insulation from the free
nameplate label and press it onto the handle bottom,
end of the other small black wire. behind
the meter.
( ) Wrap
the end of the small black wire around the
Make sure that the mechanical zero position of the meter
indicated portion of the hex stud and solder the
pointer is correct . If not, adjust it as follows:
connection.
( ) Place the instrument in the normal operating position.
( ) Let
the solder connection cool. Then place the
Turn the plastic screw on the meter face with a
hex-shaped
portion of the hex stud into the end of the
screwdriver while
gently tapping the meter face with
handle top as shown.
one finger until the pointer lines up with the zero line
on the left side of the scale_
( )
Mount the handle bottom with two #6 x 5/8"
self-tapping screws. Be sure the long black wire
extends from the hole in the end of the handle. This
completes the assembly of your 40 kV Probe Meter.
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Page 6
~ ~fif*dBa;jJ
YOUR HEATHKIT 90 DAY LIMITED WARRANTY
If you are not satisfied with our service -warranty or otherwise -or with our products, WTite directly to our Director of Customer
Services, Heath Company, Benton Harbor, Michigan 49022, He will make certain your problems receive immediate, personal
attention .
Our attorney, who happens to be quite a kitbuilder himself, insists that we describe our warranty using all the necessary legal
phrases in order to comply with the new warranty regulati ons . Fine. Here they are:
For a period of ninety (90) days after
purchase, Heath Company will replace or repair free of charge any parts that are defective
either in materials or
workmanship .You can obtain parts directly from Heath Company by WTiting us at the address below orby
telephoning us at [phone]. And we'll pay shipping charges to get those parts to you - anywhere in the world .
We warrant that
during the first ninety (90) days after purchase, our products, when correctly assembled, calibrated, adjusted
and used in accordance with our printed instructions, will meet published specifications.
If a defective part or error in design has caused your Heathkit product to malfunction during the warranty period through no
fault of yours, we will service it free
upon proof of purchase and delivery at your expense to the Heath factory, any Heathkit
Electronic Center
(units of Schlumberger Products Corporation), or any of our authorized overseas distributors.
You will receive free
consultation on any problem you might encounter in the assembly or use of your Heathkit product. Just
drop us a line or give us a call. Sorry, we cannot accept collect calls.
Our warranty does not cover and we are not responsible for damage caused by the usa of corrosive solder, defective tools,
incorrect assembly, misuse, fire, or by
unauthorized modifications to or uses of our products for purposes other than as
advertised. Our
warranty does not include reimbursement for customer assembly or set-up time.
This warranty covers only Heathkit products and is not extended toallied equipment or components used in conjunction with
our
products . We are not responsible for incidental or consequential damages . Some states do not allow the exclusion or
limitation of incidenta! or consequential damages,
so the above limitation or exclusion may not apply to you. This warranty
gives you specific legal rights,
and you may also have other rights which vary from state to state .
HEATH COMPANY
BENTON HARBOR, MI. 49022
Prices and speCifications subject to change without notice.
SCHEMATIC OF THE
HEATHKIT ,li)
40K V PROBE METER
MODEL IM-5210
8~cf", +
PROBE TIP <E('---~ ./V 1"--"''---1
1---4t--~GROUND CLIP
SW1 1
DFF
N OTE S:
I. RI i s A 1/2 WA TT. 2% RESIST OR.
2. MI I S A 50~A METER