Heathkit IM 2215 Manual

Page 1

for the

PORTABLE

DIGITAL MULTIMETER
Model lM-2215

595-2233

Page 20

Page 18

Main Circuit Board [Contd]

NOTE: Make sureyuu have installed Ihe part in
Pictorial 1-2.

IMPORTANT: IIIE BANDED END OF DIODES
CAN BE MARKED IN A NUMBER OF WAYS.

BAN IlEIl END

NOTE When you insml] diudus. as in thy [u],
lowing steps. be sure you position [he handed
end ni each diode as it is shown on the (:ircuil

hoard.

I ) D7' IN4I49 diode [#5666].

I ) D4: 1N4l49 diode (#5565).

D10: 1N4149 diode (#56-56].

-O

r ) D5: IN~I448 diode (#554552).

U
Q $3
C)

IH )rx

D6: lN-I448 diode [#56652)

Suldur the leads to the foil and cm offlhe
nxmss lead lengths,

PICTOR IAL 1-4

Page 25

EEL-

NOTE: Install the following diode with the
band ed and down over the circle outline on the
circuit board.

bANDED
FND

D

ZDl: 1N4742A zener diode [#Sfi-UO].

($15: 100 pF mica.

Solder the leads to the foil and cut offthe
excess lead lengths.

CONTINUEUr

( ] R13: 1000 Q [1 k) control (#10-1141).
Match the leads on the control with the
holes on the circuit board, Then push the
control down against the circuit board
and solder the leads to the foil. Cut off the
excess lead lengths.

Hull

PICTORIAL 1-9

Page 26

Page 24

[ ]

SW9: Slide switch. Push the switch
firmly down so it is pmpsrly seated
against the circuit board. Make sure the
two labs are seated properly in the cut-
outs against the side of the circuit board,
Then solder three lugs and both tabs to
the foil,

PICTORIAL 1-10

august-3311s

NOTE. When you install a tantalum ca
always match the plus t +1 or dot marked still: of
the (.apanitor with tho,- plus H] mark on the
circuit hnard.

POSITIVE HI
MARK

COLOR
DOI

POSITIVE (H
MARK

l ) C4: 4.7 pl [yel-viol-gm) tantalum.

l I Solder the leads Inthe [Di] and cut off the
ests lengths.

Page 36

Page 34

LOWIik OPTIONAL
EDGE RED DOT

b

WHITE
DOT

I

I

I

I

Detail 2-1D

vanr In Detail Z< II) and lnnaln tho, idenlificatiun marks near one edge
on thu [up surfau' ui the liquid urystal display. This idnntities this
Iuwnr rdgn uf tlw display.

LCD 1: Rufur in Detail Z»1E and place the display in the LCD holder so
the identification mark nn the display is near thn lower edge of the
circuit board.

Mount the bezel it) the display circuit buard assembly as shown in
Detail 2-1E. Use: a display bracket a 4-40 x 3/8 scrrw. a #4
IuLkwashnr and a 4-40 nut at AA and AB. Only tighten thu hardware
finger tight at this time.

I

I

DISPLAY
BRACKET

IDENTIFICATION
MARKS

LIQUID
CRVSTAL
DISPLAY

LCD
HOLDER

Detail Z-lE

Set the display miniuit board assembly aside until it is called for in a

step.

Page 76

Page 74

Accuracy ........................................

Voltage @ max. display ...............................

Overvultage Protection ...............................

GENERAL

Operating Temperature Range ........................
Storage Temperature .................................
Temperature Coefficient ...............................

Power Requirements ...................................

200 0 range:
t (3% of reading + 3 counts].

2 kn, 20 kn. 200 km, 2000 kn ranges:
1 [25% of reading + 1 cuunt).

20 MD range:
I (2% of reading + 1 count)

200 0, 20 1.2000 kn ranges
(low test Voltage):

Less than .25 VDC
2 m. 200 km, 20 M0 ranges
(high test voltage):

Greater than .7 VDC,

300 volts DC or AC on all ranges.

0"C to 50°C (32°F to 122°F].
-20°C 10 60°C (-4°F [u 140.
x [.1 x applicable accuracy)/°C.

9-vult battery (NEDA 1604) or
Heath PS-ZSSO or PS-2450 Converter/Charger.

Page 77

a 1-1 EATHKIN

Battery Life (typical) . .

Battery Indicator ....................................

Polarity Indication ..................................

Overrange lndi ration ...............................

Maximu n1 Resolution .................................
(low range]

Display Rate ..........................................

Display ...............................................

Dimensions ...........................................

Weight ...............................................

Alkaline 200 hours; carbon-zinc
100 to 150 hours.

Displays LO BAT" when approximately
20% of battery life remains.

Automatic negative, implied positive on VDC. mA DC.

All digits except most
significant digit blanked.

Voltage: 100 AV.
Current: 1 [1A.
Resistance: .1 (L

Approximately 2-1/2 per second.

3-1/2 digit [1999 maximum
count) liquid crystal

2 H x 3-1/4" w x 7-1/2" L
[51 x 3.3 x 19.1 cm)

14 oz. [4003) with battery

«ME-

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,