Amprobe | AM-6B Analog-Multimeter | manual | AM-6B Analog Multimeter Product Manual

AM-6B Analog Multimeter Product Manual
Pt. No. 936760
8/95
OPERATING
| INSTRUCTIONS
for
AMPROBE®
MULTIMETER
‚ Моде! АМ-6В
See “LIMITED WARRANTY" on Pg. 2
See “PRECAUTIONS FOR PERSONAL AND
INSTRUMENT PROTECTION" on Pg. 4
See “FUSE PROTECTION" on Pg. 5
AMPROBE INSTRUMENT“
DIVISION OF CORE INDUSTRIES INC
630 Merrick £0. Box “
Rd. PO. 329. Lynbrook. NY 11563
(516) 593-5600 = FAX (516) 593-5682
AMPROBE,
Printed in Taiwan
LIMITED WARRANTY
Congratulationst You are now the owner of an
AMPROBE® instrument. it has been quality crafted
according to quality standards and contains quality com-
nents and workmanship. This instrument has been
inspected for proper operation of all of its functions. it
has been tested by qualified factory techniciang accord-
ing to the long-established standards of PROBE
INSTRUMENT.
Your AMPROBE instrument has a limited warranty
against defective materials and/or workmanship for one
ear from the date of purchase provided that, in the opin-
ion of the factory, the instrument has not been tampered
with or taken apart.
Should your Instrument fail due to defective
materials, and/or workmanship during the one year
warranty period, return it along with a copy of your
dated bill of sale which must tify instrument by
model number and serial number.
For your protection, please use the instrument as soon
as possible. If damaged, or should the need arise to
return your instrument, it must be securely wrapped (to
prevent damage in transit) and sent prepaid via Air
arcel Post insured or UPS where available to:
Service Division
AMPROBE INSTRUMENT
630 Merrick Road (For U.P.S.)
Р.О. Вох 329 (Рог Р.Р.)
Lynbrook, NY 11563-0329
Outside the U.S.À. the local Arnprobe representative will
assist you. Above limited warranty covers repair and
replacement of instrument only and no other obligation is
stated or implied.
SPECIFICATIONS MODEL AM-68
Voltage Ranges:
AC: 0-30/120/300/600V (4KQ/ Voit)
DC: 0-0.3/3/12/30/300/600V (4K52/Voit)
Resistance Ranges:
X1: 2KQ, 302 mid -scale (0.5Q resolution from 0-54)
X100:200KQ, 3K0? mid -scale (500 resolution from 0-5000)
K€: 1MQ, 10KQ mid -scale (2000 resolution from 0-5K0)
DC Current Ranges: 0-250pA/3mA/30mA/300mA
Battery Test Range: 0-1.5VDC
db Ranges:
(30 VAC): -10-+31dB
(120 МАС): +2 - +43dB (add 12 dB to readout)
(300 VAC): +10 - +51dB (add 20 dB to readout)
(600 VAC): +16 - +57dB (add 26 dB to readout)
(reference: 0dB=.775v, 600Q)
Accuracy:
AC Volts: +/-4% full scale
DC Voits: +/-3% full scale
Resistance; +/-3% of arc
DC milliamps: +/-3% full scale
1.5V Battery Test: /-5% of arc
dB +/-4% of arc
Frequency Response: 50-60Hz
Ohmmeter Battery: Amprobe part number SN915
(AA) included
Fuse: Amprobe part number 5X20-250.5, 0.54/250V
fast blow type, 1 spare included
Dimensions: 14 cm(L) x 9.4em(W) x 40mm(H) 5.5"(L)
x 3.7"(W) x 1.6"(H)
Approximate Weight: 212g (7.5 oz.)
"Test Leads: MTL-68
2
3
4
5
6
7
8
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PRECAUTIONS FOR PERSONAL AND
INSTRUMENT PROTECTION
Read these instructions thoroughly and follow
them carefully.
In many instances you will be working with dan-
gerous levels of voltage and/or current; therefore,
it is important that you avoid direct contact with
any uninsulated, current-carrying surfaces.
Appropriate insulating gloves and clothing, should
be worn. y»
Before connecting or disconnecting the meter to or
from the circuit to be tested, turn off all power to
the circuit.
Before applying test leads to circuit under test,
make certain:
Before using any electrical instrument or tester for
actual testing the unit should be checked on a
known live line to make certain it is operating
properly.
{if the instrument should indicate that voltage is not
present in circuit, do not touch circuit until you
have checked to see that all instrument switches
are in proper position and instrument has been
checked on a known live line.
Make certain no voltage is present in circuit
before connecting ohmmeter to circuit.
When not in use, set selector switch to “OFF"
position.
IMPORTANT: Failure to follow these instructions
and/or observe the above precautions may
result in personal injury and/or damage to the
instrument and/or accessories.
FUSE PROTECTION
All ohms and milliamp ranges of the AM-6B are fuse pro-
tected to withstand the momentary misapplication of up
to a maximum of 250 volts.
If you should accidentally apply voltage while on these
ranges, disconnect the leads from the circuit as quickly
as possible. Check instrument operation on that range
by applying the proper input. If instrument does not
operate properly on that range, remove the back cover
of the instrument (see pages 8-9). Check fuse. If it is
blown, replace with appropriate fuse (see pages 8-9).
ACCURACY
1. For greatest accuracy, the pointer should be set on
the zero line. Use zero adjusting screw, if necessary.
2. When using meter, place it panel side up on a flat
non-metallic surface.
3. Take reading on the range on which the reading is as
close to full scale as possible.
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AMPROBE.
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OPERATION
Before using instrument, read “Precautions for Personal
and instrument Protection: on page 4.
DC/AC Voitage Ranges:
All voltage measurements are take directly on the
appropriate 0.3/3/12/30/120/300/600V scale. When
using 3VDC range, take reading on 30 volt scale and
divide reading by 10. When using the 0.3/DC range,
take the reading on the 30 volt scale and divide by 100.
AC Voltage Measurements:
1. Set the selector switch to appropriate AC voltage
range. When voltage is unknown, use the highest
voltage range.
2. Plug the Black test lead into “—" jack.
3. Plug the Red test lead into the “+” jack.
4. Place one test prod on each side of the AC voltage.
DC Voltage Measurements:
1: Set the selector switch to appropriate DC voltage
range. When voltage is unknown, use the highest
voltage range.
2. Plug the Black test lead into the “—* jack.
3. Plug the Red test lead into the “+” jack.
4. If negative and positive sides of the circuit to be test-
ed are known:
a) connect the black test prod to the negative side of
the circuit.
с
b) connect the red test prod to the positive side of
the circuit.
If the negative and positive sides of the circuit are not
known:
a) connect the black and red prods to circuit.
b) It meter deflects to the left, reverse the black and
red prods.
. if meter indication is in lower half of scale ang falls
within the range of a lower scale, reset selector
Switch to the lower range.
Current Measurements:
A milliampere is one thousandth (1/1000) of an ampere
and may be written as 1mA or 0.001 ampere.
A microampere is one millionth (1/1,000,000) of an
ampere and may be written as 1HA or 0.000001
ampere. Meter must be connected in series with the cir-
cuit under test.
DC Current Measurements:
1.
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Set the selector switch to appropriate range. When
current is unknown use the highest current range.
. Plug black test lead into the “~" jack.
Plug red test lead into the “+” jack.
Using the red and black test leads connect the meter
in series with the circuit under test.
If meter deflects to the left, reverse the red and black
test prods.
. If meter indication is in lower half of scale and falls
within the range of a lower Scale, reset selector
switch to the lower range.
FUSE/BATTERY INSTALLATION
The ohmmeter is powered by one 1.5V type “AA” bat-
tery. This instrument uses 250V, .5A amp fast blow fuse,
cat. no. 5X20-250.5 (spare included).
To install (or replace) fuse or battery, remove instrument
back cover by removing large screw. Observe proper
polarity when installing battery. To replace back cover,
line up edges and tighten screw.
Resistance Measurements:
1. Set the selector switch to appropriate range. When
resistance is unknown use the highest resistance
range (KQ). 1K0=10000.
- Plug the black test lead into the “—" jack.
2
3. Plug the red test lead into the “+" jack.
4. Short the test leads by touching them together.
5
. With leads shorted together observe pointer. It should
read “0” at the right hand end of the ohms scale.
6. If pointer does not indicate “0”, use ohmmeter zero
adjust (0RADJ) knob to line up with “0” on ohms
scale. If pointer cannot be brought up to “0”, replace
battery.
м
Separate the test leads.
со
. Connect test leads across the resistance to be mea-
sured. Caution: Resistance to be measured must be
disconnected from all power before applying chm-
meter test leads.
9. The KQ scale is read off the top green scale. The
read out is multiplied by 1000 to determine your resis-
tance in ohms.
10. The X1 and X100 scale is read off the lower green
scale. The readout is read directly when on the X1
scale, and muitiplied by 100 on the X100 scale.
11. If there is little or no pointer deflection from “infinity”
(=> left hand end of scale), reset selector switch to a
higher range to get à greater defiection. The best
readability on an ohmmeter range is between mid
scale and zero ohms.
Note: When switching ranges, readjust pointer to “0”
ohms as outlined above. )
BATTERY TEST
1. Set selector switch to batt/1.5V position.
2. Plug the black test lead into the “—" jack.
3. Plug the red test lead into the “+" jack.
4. Touch red test lead to “+” terminal of battery and the
black test lead to “—" end of battery.
5. Take reading on the special “BAT” scale.
SERVICE
For Factory service, package instrument and packing
slip with sufficient cushioning material in a shipping car-
ton; make certain your name and address also appear
on box as well as packing slip; ship prepaid via U.PS.
(where available) or Air Parcel Post insured to:
Service Division
AMPROBE INSTRUMENT
630 Merrick Road (Use for U.P.S.)
P.O. Box 329 (Use for Parcel Post)
Lynbrook, NY 11563-0329
Outside the U.S.A. the local Amprobe representative will
assist you.
10
NOTES
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