RS PRO RS-660 User manual

Africa
RS Components SA
P.O. Box 12182,
Vorna Valley, 1686
20 Indianapolis Street,
Kyalami Business Park,
Kyalami, Midrand
South Africa
www.rs-components.com
Asia
RS Components Ltd.
Suite 1601, Level 16, Tower 1,
Kowloon Commerce Centre,
51 Kwai Cheong Road,
Kwai Chung, Hong Kong
www.rs-components.com
China
RS Components Ltd.
Suite 23 A-C
East Sea Business Centre
Phase 2
No. 618 Yan'an Eastern Road
Shanghai, 200001
China
www.rs-components.com
Europe
RS Components Ltd.
PO Box 99, Corby,
Northants.
NN17 9RS
United Kingdom
www.rs-components.com
Japan
RS Components Ltd.
West Tower (12th Floor),
Yokohama Business Park,
134 Godocho, Hodogaya,
Yokohama, Kanagawa 240-0005
Japan
www.rs-components.com
U.S.A
Allied Electronics
7151 Jack Newell Blvd. S.
Fort Worth,
Texas 76118
U.S.A.
www.alliedelec.com
South America
RS Componentes Limitada
Av. Pdte. Eduardo Frei M. 6001-71
Centro Empresas El Cortijo
Conchali, Santiago, Chile
www.rs-components.com
Instruction Manual
RS-660
Stock No: 161-1625
Compact Digital Multimeter
EN

1
Compact Digital Multimeter / English
02/01/2018 Version No. 001
1-Safety Instructions
This meter has been designed for safe use, but must be operated with caution. The rules
listed below must be carefully followed for safe operation.
• NEVER apply voltage or current to the meter that exceeds the specified maximum:
Input Limits
Function Maximum Input
VAC 600 V dc/ac
V DC or V AC 600 V dc/ac, 200 V rms on 200 mV range 200 mA
mA DC 600 V fast acting fuse
A DC 10 A 600 V fast acting fuse (30 seconds max every 15 minutes)
250 V rms for
Resistance, Continuity 15 seconds max
This symbol adjacent to another symbol, terminal or operating device
in d ic a te s that the operator must refer to an explanation in the
Operating In s tr uc t ions to avoid personal injury or damage to the
meter
WARNING This WARNING symbol indicates a potentially hazardous situation,
which if not avoided, could result in death or serious injury.
CAUTION This CAUTION symbol indicates a potentially hazardous situation,
which if not avoided, may result damage to the product.
• USE EXTREME CAUTION when working with high voltages.
• DO NOT measure voltage if the voltage on the “COM” input jack exceeds 500 V above
earth ground.
• NEVER connect the meter leads across a voltage source while the function switch is in
the current, resistance, or diode mode. Doing so can damage the meter.
• ALWAYS discharge filter capacitors in power supplies and disconnect the power when
making resistance or diode tests.
• ALWAYS turn off the power and disconnect the test leads before opening the doors to
replace the fuse or batteries.
• NEVER operate the meter unless the back cover and the battery and fuse doors are in
place and fastened securely.
2. SAFETY SYMBOLS

2 3
3. Controls and jacks
1. LCD Display
2. Data Hold Button
3. Function Switch
4. Backlight Button
5. 10 A Jack
6. COM Jack
7. Positive Jack
4. Symbols and Annunciators
Continuity
Diode test
μμ Micro(amps)
MM Milli(volts, amps)
KK Kilo(ohms)
ΩΩ O hms
VDC VDC Volts direct current
VAC VAC Volts alternating current
ADC ADC Amps direct current
BAT BAT Battery test
This symbol adjacent to one or more terminals identifies them as
being associated with ranges that may, in normal use, be subjected
to particularly hazardous voltages. For maximum safety, the meter
and its test leads should not be handled when these terminals are
energized.
Note: Tilt stand, fuse and battery
compartment are on rear of unit.
5. Specications
Function Range Resolution Accuracy
DC Voltage
(V DC)
200 mV 0.1 mV
±(0.5%reading + 3digits)2000 mV 1m V
20 V 0.01 V
200 V 0.1 V ±(0.8%reading + 3digits)
600 V 1 V
AC Voltage
(V AC)
200 V 0.1 V ±(1.2%reading + 10digits 50/60 Hz)
600 V 1 V
DC Current
(A DC)
200 μA 0.1 μA ±(1.0%reading + 5digits)
20 mA 10 μA
200 mA 100 μA ±(1.2%reading + 5digits)
10 A 10 mA ±(3.0%reading + 5digits)
Resistance
200 Ω 0.1 Ω
±(1.0%reading + 5digits)
2 kΩ 1Ω
20 kΩ 0.01 kΩ
200 kΩ 0.1 kΩ
2 MΩ 1kΩ ±(1.5%reading + 5digits)
Battery Test 9 V 10 mV ±(1.0%reading + 2digits)
1.5 V 10 mV
NOTE: Accuracy specifications consist of two elements:
• (% reading) – This is the accuracy of the measurement circuit.
• (+ digits) – This is the accuracy of the analog to digital converter.
NOTE: Accuracy is stated at 65° F to 83° F (18°C to 28°C) and less than 75% RH.
Compact Digital Multimeter / EnglishCompact Digital Multimeter / English
02/01/2018 Version No. 00102/01/2018 Version No. 001

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Diode Test Test current of 1 mA maximum, open circuit voltage 2 V
DC typical
Continuity Check Audible signal will sound if the resistance is less than
approximately 100Ω
Battery Test current 9 V (6 mA); 1.5 V(100 mA)
Input Impedance >1 MΩ
ACV Bandwidth 50 Hz to 60 Hz
DCA voltage drop 200 mV
Display 3 ½ digit, 2000 count LCD, 1.1 digits
Overrange indication “OL” is displayed
Polarity Automatic(no indication for positive polarity); Minus(-) sign
for negative polarity.
Measurement Rate 2 times per second, nominal
Low Battery Indication "" is displayed if battery voltage drops below operating
voltage
Battery One 9 V(NEDA 1604) battery
Fuses mA, μA ranges; 0.2 A/600 V fast blow A range; 10 A/600
V fast blow
Operating Temperature 32 oF to 122 oF (0 oC to 50 oC)
Storage Temperature -4 oF to 140 oF (-20 oC to 60 oC)
Relative Humidity <70% operating, <80% storage
Operating Altitude 7000 ft. (2000)meters maximum.
Safety For indoor use and in accordance with Overvoltage
Category II, Pollution Degree 2. Category II includes local
level, appliance, portable equipment, etc., with transient
overvoltages less than Overvoltage Category III.
5-1.Battery Installation
WARNING: To avoid electric shock, disconnect the test leads from any source of
voltage before removing the battery door.
• Disconnect the test leads from the meter.
• Open the battery door by loosening the screw using a Phillips head screwdriver.
• Insert the battery into battery holder, observing the correct polarity.
• Put the battery door back in place. Secure with the screw.
WARNING: To avoid electric shock, do not operate the meter until the battery door is
in place and fastened securely.
NOTE: If your meter does not work properly, check the fuses and batteries to make sure
that they are still good and that they are properly inserted.
6. Operating Instructions
6-1 Data Hold Button
• The Data Hold function allows the meter to “freeze” a measurement for later reference.
• Press the DATA HOLD button to “freeze” the reading on the indicator. The indicator “H”
will be appear in the display.
• Press the DATA HOLD button to return to normal operation.
6-2 Back Light Button
• The BACK LIGHT button is used to turn the back light on or off. Press the BACK LIGHT
BUTTON to turn the back light on.
• Press the BACK LIGHT BUTTON to turn the back light off.
WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are very
dangerous and should be measured with great care.
• ALWAYS turn the function switch to the OFF position when the meter is not in use.
• If “OL” appears in the display during a measurement, the value exceeds the range you
have selected. Change to a higher range.
NOTE: On some low AC and DC voltage ranges, with the test leads not connected to a
device, the display may show a random, changing reading. This is normal and is caused by
the high-input sensitivity. The reading will stabilize and give a proper measurement when
connected to a circuit.
6-3 DC Voltage Measurements
CAUTION: Do not measure DC voltages if a motor on the circuit is being switched
ON or OFF. Large voltage surges may occur that can damage the meter.
• Set the function switch to the highest V DC position.
• Insert the black test lead banana plug into the negative (COM) jack. Insert the red test
lead banana plug into the positive (V) jack.
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• Touch the black test probe tip to the negative
side of the circuit.
Touch the red test probe tip to the positive side
of the circuit.
• Read the voltage in the display.
Reset the function switch to successively lower
V DC positions to obtain a higher resolution
reading.
The display will indicate the proper decimal
point and value. If the polarity is reversed, the
display will show (-) minus before the value.
6-4 AC Voltage Measurements
WARNING: Risk of Electrocution. The probe tips may not be long enough to contact
the live parts inside some 240V outlets for appliances because the contacts are
recessed deep in the outlets. As a result, the reading may show 0 V when the outlet
actually has voltage on it. Make sure the probe tips are touching the metal contacts
inside the outlet before assuming that no voltage is present.
CAUTION: Do not measure AC voltages if a motor on the circuit is being switched ON
or OFF. Large voltage surges may occur that can damage the meter.
•Set the function switch to the highest V AC position
• Insert the black test lead banana plug into the negative(COM)jack.
Insert red test lead banana plug into the positive(V)jack.
• Touch the black test probe tip to the negative
side of the circuit.
Touch the red test probe tip to the positive side
of the circuit.
• Read the voltage in the display. Reset the
function switch to successively lower V AC
positions to obtain a higher resolution reading.
The display will indicate the
proper decimal point and value.
6-5 DC Current Measurements
CAUTION: Do not make current measurements on the 10 A scale for longer than 30
seconds. Exceeding 30 seconds may cause damage to the meter and/or the test leads.
• Insert the black test lead banana plug into the negative (COM) jack.
• For current measurements up to 200 mA dc, set the function switch to the highest DC
mA position and insert the red test lead banana plug into the(mA)jack.
• For current measurements up to 10 A dc, set the function switch to the 10 A range and
insert the red test lead banana plug into the (10 A)j ack.
• Remove power from the circuit under test, then open up the circuit at the point where
you wish to measure current.
• Touch the black test probe tip to the negative side of the circuit.
Touch the red test probe tip to the positive side of the circuit.
Compact Digital Multimeter / EnglishCompact Digital Multimeter / English
02/01/2018 Version No. 00102/01/2018 Version No. 001