ISO-TECH IDM201N Digital Multimeter Instruction Manual

Below you will find brief information for Digital Multimeter IDM201N. The ISO-TECH IDM 201N Multimeter is a versatile and portable bench-type instrument suitable for workshop and laboratory based engineers and technicians, as well as field-service engineers who require a self-powered instrument for maintenance, test or repair activities. The instrument may be powered from an ac mains supply between 90V ac and 263V ac, or by internal batteries as required.

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Instruction Manual
IDM201N
Digital Multimeter
Table of Contents
SECTION 1SAFETY INFORMATION
3
SECTION 2 INTRODUCTION
7
SECTION 3SPECIFICATIONS
9
3.1 General Specifications
10
3.2 Electrical Characteristics
11
SECTION 4OPERATION 15
4.0 Setting Up The Instrument
16
4.1 Controls And Connectors
16
4.2 Preparation And Caution Before Measurement
20
4.3 Voltage Measurement
20
4.4 Current Measurement
20
4.5 Resistance Measurement
21
4.6 Audible Continuity Test
21
4.7 Diode Check
21
4.8 Capacitance Measurement
22
4.9 Frequency Measurement
22
SECTION 5MAINTENANCE
23
5.1 Battery Installation Or Replacement
24
5.2 Meter Fuse Replacement
25
5.3 Mains Fuse Replacement
25
5.4 Attaching And Detaching The Carrying Strap
26
2
SECTION 1
SAFETY INFORMATION
3
 Safety Information
Read and understand this Instruction Manual completely before using this instrument. Failure to observe the warnings and cautions in this Instruction
Manual may result in injury, death, or damage to the instrument and other equipment or property.
If this instrument is used in a manner not specified in these instructions, the protection provided by the instrument may be impaired.
 WARNING
• Examine the instrument and probes before use. Do not use the instrument if it is wet or damaged
• When using test leads or probes, keep your fingers behind the finger guards
• Remove the test lead from the instrument before opening the battery cover or instrument case
• Always use the correct terminals, switch position and range for measurements
• Never attempt a voltage measurement with the test leads inserted into the current input terminals
• Verify the instrument is operating correctly by measuring a known voltage before use. If in doubt, have the instrument serviced
• Do not apply more than the rated voltage, as marked on the instrument, between terminals or between any terminal and earth ground
• Do not attempt a current measurement when the open-circuit voltage is above the fuse protection rating
• Only replace a blown fuse with the correct type and rating as specified in this Instruction Manual
• Use caution when measuring voltages above 30V ac rms or 60V dc. These voltages pose a shock hazard
• To avoid incorrect readings that can lead to electric shock, replace the battery as soon as low battery indicator
appears in the display
• Disconnect the circuit power and discharge all high-voltage capacitors before making resistance, continuity, diode or capacitance measurements
• Do not use the instrument in a Hazardous Area or around explosive gasses or vapours
• Wear suitable Personal Protective Equipment when working around or near hazardous Live conductors which could be accessible
• When this instrument is powered from a Mains power source, the Protective Conductor Terminal must be connected to Ground
• Before powering this instrument from a mains power source, ensure the mains input voltage selector is set to the correct position
4
 Caution
• Disconnect the test leads from the test points before changing the position of the function rotary switch
• Never connect the instrument to a source of voltage with the function rotary switch in Ω//A
//Hz position
• If possible, do not work alone, so assistance can be given if required
• Do not expose the instrument to extremes of temperature or high humidity
• When connecting the test leads to a circuit or device, connect the black lead before the red lead and disconnect the red lead before the black lead
• If the instrument is used near equipment that generates electro-magnetic interference, the display may be unstable or indicate incorrect measurements
• When measuring current using the 10A range, the maximum measurement duration is 30 seconds in any 10 minute period for currents greater than 10A
The following symbols may appear on the instrument and in this Instruction Manual:

Risk of electric shock

Refer to Instruction Manual
Direct Current (dc)

Equipment protected throughout by double or reinforced insulation
Battery

Fuse

Earth

Alternating Current (ac)

Conforms to applicable EU directives
5
6
SECTION 2
INTRODUCTION
7
2. Introduction
The ISO-TECH IDM 201N Multimeter is a versatile and portable bench-type instrument suitable for workshop and laboratory based engineers and
technicians, as well as field-service engineers who require a self-powered instrument for maintenance, test or repair activities. The instrument may be
powered from an ac mains supply between 90V ac and 263V ac, or by internal batteries as required. An integral compartment provides stowage space
for test leads, spare batteries and fuses. The instrument uses a 3&frac12; digit (2000 count) backlit Liquid Crystal Display with annunciators, polarity and
automatic decimal point placement. The auto-range function may be disabled for convenience and Maximum/Minimum and data-hold functions can
also be selected if required. The measurement capabilities are as follows:
• DC and AC voltages
• DC and AC current
• Resistance and continuity checking
• Capacitance and Diode testing
• Frequency
Unpacking and Inspection
Unpack the multimeter and check the contents for damage. If any items are damaged or missing, contact the supplier.
The instrument is supplied with the following items:
1. The Digital Multmeter.
2. One pair of Test-leads (one red lead and one black lead).
3. This Instruction Manual.
4. One UK-style mains power cable.
5. One Schuko style mains power cable.
6. One Carrying-strap.
7. One pair of Alligator-clips (One red clip and one black clip)
8
SECTION 3
SPECIFICATIONS
9
3.1 General Specifications
Display: 3-1/2 digit (2000 count), full annunciators, automatic polarity indication
Measurement Rate: 1.5 times per second
Over range Indication: OL is displayed for Ω, Hz,  functions. Actual value is shown for A, and V functions
Backlight: Electroluminescent panel
Operating Temperature: 0&deg;C to 50&deg;C
Storage Temperature: -30&deg;C to 70&deg;C (batteries removed)
Temperature Stability: 0.15 x (Spec. Accuracy) per &deg;C, &lt; 18&deg;C or &gt; 28&deg;C
Relative Humidity: Maximum RH 80% for temperatures up to 31&deg;C decreasing linearly to 50% RH at 40&deg;C
Safety: EN (IEC) 61010-1:2001 specifications
Maximum Voltage to Earth: 600V dc or ac peak to any terminal
Power Requirements: ac; 90 ~ 264V, 50/60Hz &lt; 10VA, dc; Qty 6 x 1.5V AA LR6 or AM3 battery
Battery Life: 1200 hours without backlight (alkaline) or 80 hours with continuous backlight (alkaline)
Size (mm): 218(W) x 195(L) x 73(H) without carrying strap
Weight: 1.3 Kg without power cord
Mains Fuse: 80mA/250V, FAST, 5x20mm HBC Ceramic
Overload Protection: 1
A 600V IR 10KA fuse (Bussmann BBS-1 or equivalent) for μA and mA input
15A 600V IR 10KA fuse (Bussmann KTK 15 or equivalent) for A input
Environment Conditions
The equipment was designed for use in the following environmental conditions:
• Indoor use only.
• Maximum Altitude: 2000 meters.
• Installation Category (Measurement Category): IEC 61010-1, 600V CAT II, 300V CAT III.
• Pollution degree: 2
10
Note:
Measurement Category l is for measurements performed on circuits not directly connected to mains. Examples include: Measurements on battery
powered equipment and specially protected (internal) mains-derived circuits.
Measurement Category ll is for measurements on circuits directly connected to the low voltage installation. Examples include: Household appliances,
portable tools and similar equipment.
Measurement Category lll is for measurements performed in the building installation. Examples include measurements on distribution boards,
junction boxes, socket-outlets and wiring and cables in the fixed installation.
Measurement Category lV is for measurements performed at the source of the low-voltage installation. Examples include measurements on primary
overcurrent protection devices and electricity meters.
3.2 Electrical characteristics
Accuracy is &plusmn;(% reading + number of digits) at 23&deg;C &plusmn; 5&deg;C, less than 80% R.H.
(1) DC Volts
Range
Resolution
200mV
100&micro;V
2V
1mV
20V
10mV
200V
100mV
600V
1V
Accuracy
&plusmn; (0.5% + 2d)
Over voltage protection
1100V dc or
1100Vp-p
Input Impedance: 10MΩ (over 1000MΩ in 200mV range).
11
(2) AC Volts
Range
Resolution
Accuracy
200mV
100&micro;V
Unspecified
2V
1mV
20V
10mV
200V
100mV
600V
1V
Over voltage protection
1100V dc or
1100Vp-p
&plusmn; (1.5% + 5d) 50Hz to 500Hz
Input Impedance: 10MΩ // less than 100pF.
AC Conversion Type: AC conversions are ac-coupled true rms responding and calibrated to the rms value sine-wave input.
(3) Resistance
Range
Resolution
Accuracy
200Ω
0.1Ω
&plusmn;(0.7% + 3d) *1
2KΩ
1Ω
20KΩ
10Ω
200KΩ
100Ω
Over voltage protection
&plusmn;(0.7% + 3d)
2MΩ
1KΩ
&plusmn;(1.0% + 3d)
20MΩ
10KΩ
&plusmn;(2.5% + 3d) *2
600V dc or
600V rms
Open circuit Voltage: -1.3V approx.
*1 &lt; 10dgt rolling.
*2 &lt; 100dgt rolling.
(4) Diode Check
Resolution
Accuracy
Max. Test Current
Max. Open Current
Voltage
Overload protection
10mV
&plusmn;(1.5% + 5d)
For 0.4V to 0.8V
1.5mA
3V
600V dc
or 600V rms
Internal beeper activates it the voltage of the circuit under test is less than 0.25V.
12
(5) Continuity
The internal sounder activates if the resistance of the circuit under test is less than 20Ω. It will then turn off if the resistance is increased beyond 50Ω.
Response time is approximately 50 msec. Overload Protection: 600V dc/ac rms max.
(6) Capacitance
Range
Resolution
Accuracy
2nF *3
1pF
&plusmn;(1.9% + 20d)
20nF
10pF
200nF
100pF
2&micro;F
1nF
20&micro;F
10nF
200&micro;F
100nF
2mF
*1
Over voltage protection
600V dc or
600V rms
&plusmn;(1.9% + 8d)
1&micro;F
&plusmn;(1.9% + 8d)
*2
*1 &lt;100 dgt of reading rolling.
*2 The accuracy is specified with the backlight not activated.
*3 For accurate readings, do not use the mains power supply when measuring low-value capacitance.
*4 In order to ensure the best accuracy in measurement of a low value capacitance, note and subtract the stray capacitance
of the open-circuit test leads from subsequent measurements.
(7) Frequency
Resolution
Resolution
2000Hz
1Hz
** Sensitivity
20KHz
10Hz
200KHz
100Hz
2MHz
1KHz
250mV rms
20MHz
10KHz
1V rms
Accuracy
Overload protection
0.01% &plusmn; 2d
600V rms
100mV rms *
* Less than 20Hz the sensitivity is 1.5V rms.
** Max. Sensitivity: &lt;5 Vac rms.
13
(8) DC Current
Range
Resolution
200.0μA
0.1&micro;A
2000μA
1&micro;A
20.00mA
0.01mA
200.0mA
0.1mA
10A
10mA
Accuracy
Voltage Burden
&plusmn;(1.0% + 2d)
800mV max
&plusmn;(1.5% + 4d)
1V max
Accuracy
Voltage Burden
&plusmn;(1.5% + 5d)
800mV max
&plusmn;(2.5% + 5d)
1V max
10A Range: 30 seconds maximum for current greater than 10A.
(9) AC Current
Range
Resolution
200.0μA
0.1μA
2000μA
1μA
20.00mA
0.01mA
200.0mA
0.1mA
10A
10mA
Frequency Response: 50Hz to 500Hz
10A Range: 30 seconds maximum for current greater than 10A.
AC Conversion Type: AC conversions are ac-coupled true rms responding and calibrated to the rms value sine-wave input.
(10) Auto Power-off (APO)
If the instrument is not used for more than 10 minutes, it automatically turns the power off. The state of the instrument is stored and it can be turned on
again by pressing any button or changing the rotary switch position. If a button is pressed, the LCD displays the saved state; press the Hold button to
disable the hold state. The instrument will alarm 15 seconds before automatically turning power off, but any button press or rotary switch movement will
reset Auto Power-off.
(11) Disable Auto Power-off
To disable the auto power-off function, press and hold any button (except the Hold button) whilst turning on the instrument.
14
SECTION 4
OPERATION
15
4.0 Setting Up The Instrument
Connecting to the Mains power supply
 CAUTION: To avoid instrument damage, check the rear-panel voltage selection switch is set to the Mains power supply voltage in your area
(see below)
Mains supply voltage: Switch setting:
90 to 132V, 50/60 Hz&plusmn;
198 to 264V, 50/60 Hz
4.1 Controls And Connectors
See Figure 1 for location of controls and connectors of the front panel.
1. Digital Display: The digital display has a 3-1/2 digit LCD readout (maximum reading 2000), with auto polarity, decimal point,
overrange, AC/DC, Ω / ,, MAX.MIN. and units indicators.
2. Rotary Switch: Select the Function and Range as required.
3. COM Input Terminal: Ground input connector.
4. VΩHz  Input Terminal: Positive input connector for Volts, Ohms and Diode test, Capacitance and Frequency measurements.
5. mA Input Terminal: Positive input connector for low-current measurement.
6. A Input Terminal: P
ositive input connector for high-current measurement. The instrument can measure up to 20A. Maximum measurement duration
is 30 seconds in any 10 minute period for currents greater than 10A.
7. Back Light: Press the yellow button to toggle the LCD backlight on or off.
8. Hold Button: Press the HOLD button to toggle the Data Hold mode on or off. In the Data Hold mode, the annunciator is displayed and the display
is frozen. When the hold button is pressed the beeper emits a tone and the value being read is held on the display. In the MIN MAX
Recording mode, press the Hold button to freeze the readings. Press the Hold button again to release the hold function for
normal recording.
16
9. Function Button (Blue): Press this button to toggle between AC and DC for current measurements, or to toggle between Resistance and
Continuity Measurements, Frequency or ADP measurements.
10. Min Max Button: Press the MIN MAX Button to enter the MIN MAX Recording mode. The minimum and maximum values are then updated by the
present input. In the MIN MAX Recording mode, the minimum or maximum readings are stored in memory. The beeper emits a
tone when a new minimum or maximum value is over 2000 count. In the MIN MAX Recording mode, press the Hold button to
stop the recording of readings and freeze the display. Press the Hold button again to restart recording.
11. Range button (Manual Range): T
he “Range” button is pressed to select manual ranging and to change ranges. When the “Range” button is
pressed once, the Autorange indicator turns off. Press the “Range” button to select the most appropriate range to
suit the measurement being made. Press the “Range” button and hold for 2 seconds to return to Autorange mode.
See Figure 2 for location of controls and connectors of rear panel.
1. Mains Power ON/OFF Switch: Push to the “1” position to turn on the a.c. power supply. Push to the “0” position to turn off the a.c. power supply.
2. Mains Power Connector: Input connector for mains power cable.
3. Mains Fuse: Provides protection for equipment during malfunction or overload.
4. Mains Voltage Selector: Permits the selection of various mains supply voltages.
 CAUTION: Set the MAINS VOLTAGE SELECTOR to the correct voltage before operating the instrument from a mains power supply.
17
8
7
4
6
3
5
1
9 10 11
Figure 1. Controls and Connectors
18
2
2
1
3
4
Figure 2. Controls and Connectors
19
4.2 Preparation And Caution Before Measurement
1. Wait 30 seconds after turning on the instrument before making a measurement.
2. Set the rotary switch to the required function before connecting the probes to the circuit or equipment under test. Remove the test leads from the
circuit or equipment under test before changing the rotary switch position.
4.3 Voltage Measurement
1. Connect the BLACK test lead to the COM terminal and the RED test lead to the “VΩHz” terminal. Set the Rotary switch to the a.c. V
or d.c. V position.
3. Connect the test leads across the source or load under test. The polarity of the RED lead connection will be indicated at the same time as the
voltage is displayed. A buzzer will sound if the input voltage exceeds the maximum input voltage in either auto or manual range modes. In an
over-range condition, the MSD (most-significant digit) of the LCD display flashes and the three least-significant digits will indicate zero.
4.4 Current Measurement
 Caution: The instrument can measure up to 20A, but for currents greater than 10A the maximum measurement duration is 30 seconds
in any 10 minute period.
1. When measuring current of less than 200 mA, connect the BLACK test lead to the COM terminal and the RED test lead to the “mA” terminal.
When measuring current greater than 10A, connect the RED test lead to the “A” terminal. The instrument can measure up to 20A, but maximum
measurement duration is 30 seconds in any 10 minute period for currents greater than 10A.
2. Set the rotary switch to the range required (200μA - 200mA) for the current to be measured. Use the function button to select ac or dc mode
as required.
NOTE: If the current to be measured is not known, start at the highest range and reduce the range as required.
3. Connect the test leads in series with the circuit to be measured.
20
4.5 Resistance Measurement
 WARNING: Disconnect the circuit power and discharge all high-voltage capacitors before making resistance measurements.
1. Connect the BLACK test lead to the COM terminal and RED test lead to the “VΩHz” terminal.
NOTE: The polarity of the RED test lead is “+”.
2. Set the rotary switch to the “Ω” position to measure resistance. Select Ω measurement using the function button.
4.6 Audible Continuity Test
 WARNING: Disconnect the circuit power and discharge all high-voltage capacitors before testing for continuity.
1. Connect the BLACK test lead to the COM terminal and the RED test lead to the “VΩHz” terminal.
2. Set the rotary switch to “
” position.
3. C
onnect the test leads across the resistance to be measured. The buzzer will sound if the resistance of the circuit measured is lower than
approximately 50 Ohms.
4.7 Diode Check
 WARNING: Disconnect the circuit power and discharge all high-voltage capacitors before testing a diode.
1. Set the rotary switch to the “” position.
2. Connect the BLACK test lead to “COM” terminal and RED test lead to the “VΩHz ” terminal.
NOTE: The polarity of the RED test lead is “ +”.
3. Connect the test leads across the diode and note the reading.
4. Reverse the connections to the diode and again note the reading.
Note: If the diode under test is good, the test in one direction should show a voltage between approximately 0.40V to 0.80V for a silicon device and
the test in the opposite direction should show ”OL”. A faulty device will show either “000”, “OL” or approximately 3.2V or a combination of these
in both directions.
21
4.8 Capacitance Measurement
 WARNING: Disconnect the circuit power and discharge all high-voltage capacitors before testing for capacitance.
1. Connect the BLACK test lead to the COM terminal and the RED test lead to the “VΩHz ” terminal.
2. Set the rotary switch to “” position.
3. Observe polarity when measuring polarized capacitors.
4. Connect the test leads across the capacitor under measurement.
Note: For accurate measurement of low value capacitance, subtract the open lead capacitance from the displayed value.
4.9 Frequency Measurement
1. Connect the BLACK test lead to the COM terminal and the RED test lead to the “VΩHz ” terminal.
2. Set the rotary switch to “Hz” position.
3. Connect the test leads across the source or load under measurement.
Note: The least significant one or two digits of digital display may be unstable at frequencies below 1kHz and above 20 kHz.
22
SECTION 5
MAINTENANCE
23
5. Maintenance
Do not attempt to repair this Instrument. It contains no user-serviceable parts. Repair or servicing should only be performed by qualified personnel.
This instrument should be calibrated yearly, or more frequently if used in harsh conditions or if it is suspected of being inaccurate.
Cleaning
Periodically wipe the case with a damp cloth and detergent. Do not use abrasives or solvents.
5.1 Battery Installation Or Replacement
 WARNING: To avoid electric shock, remove the test leads and power cable before replacing the batteries.
Refer to figure 3a and use the following procedure to replace the batteries.
1. Disconnect the test leads from any circuit under test and remove them from the instrument. Turn the ON / OFF switch on the rear panel to off and
remove the mains power lead from the instrument.
2. Use a finger or thumb to release the catch on the accessory compartment and open the cover. Remove any stored accessories.
3.Use a slotted screwdriver or other appropriate tool to release the catch on the battery cover at the rear of the compartment and remove the cover.
Retain the cover.
4. Disconnect the battery connector clip and remove the battery holder from the battery compartment. Retain the battery holder.
5.Remove the exhausted batteries from the battery holder and replace them with new ones. Observe the correct polarity as marked on the battery
holder. Do not mix batteries of different types or old and new batteries.
6. Reconnect the battery connector clip and refit the battery holder into the battery compartment.
7. Refit the battery compartment cover removed in para. 3 above.
8. Replace the accessories removed in para. 2 above.
9. Close the accessory compartment cover.
10.Turn the instrument on and check for correct operation.
24
5.2 Meter Fuse Replacement
 WARNING: To avoid electric shock, remove the test leads and power cable before replacing the batteries.
Refer to Figure 3b and use the following procedure to replace the meter fuse(s).
1.Disconnect the test leads from any circuit under test and remove them from the instrument. Turn the ON / OFF switch on the rear panel
to off and remove the mains power lead from the instrument.
2. Use a finger or thumb to release the catch on the accessory compartment and open the cover. Remove any stored accessories.
3.Use a slotted screwdriver or other appropriate tool to release the catch on the fuse cover at the front of the compartment and remove the cover.
Retain the cover.
4.Use a slotted screwdriver or other appropriate tool to gently lever one end of the fuse loose from the fuse-clip and slide the fuse out from the
remaining fuse-clip
5. Fit a new fuse into the fuse-clip of the size and type given in Section 3.1 “General Specifications”. Ensure the fuse is centered in the fuse holder.
6. Refit the fuse compartment cover removed in para. 3 above.
7. Replace the accessories removed in para. 2 above.
8. Close the accessory compartment cover.
9. Turn the instrument on and check for correct operation.
10.Dispose of the removed fuse(s) in accordance with local regulations.
5.3 Mains Fuse Replacement
 WARNING: To avoid electric shock, remove the test leads and power cable before replacing the batteries.
1.Disconnect the test leads from any circuit under test and remove them from the instrument. Turn the ON / OFF switch on the rear panel to off and
remove the mains power lead from the instrument.
2. Refer to figure 2. Locate the Mains fuse holder on the rear panel.
3. Use a slotted screwdriver to release the fuse drawer.
4. Remove the fuse from the fuse drawer.
5. Fit a new fuse of the type given in Section 3.1 “General Specifications”.
25
6. Close the fuse drawer.
7. Reconnect the mains connector.
8. Turn the instrument power on and check for correct operation.
9. Dispose of the removed fuse in accordance with local regulations.
5.4 Attaching And Detaching The Carrying Strap
1. Refer to Figure 3c.
2. Locate the grips on the sides of the clips on the ends of the carrying strap.
3. Squeeze the grips between the finger and thumb whilst inserting the male portion of the clip into the receptacle attached to the instrument.
4. Push the clip fully into the receptacle until it latches into place.
5. Pull the strap to ensure it is correctly and securely engaged into the receptacle.
6. Repeat the operation with the clip on the other end of the strap.
7. To remove the strap, squeeze the grips on the sides of the clips and withdraw them from the receptacle.
26
OPENED BY SCREWDRIVER
BATTERY
CONNECTOR
BATTERY BOX
BATTERY (1.5Vx6)
BUTTON
WARNING
WARNING
OPENED BY COIN
BATTERY COVER
WARNING
Figure 3a Battery Replacement
Figure 3A. Battery Replacement
27
F1 (1A 600V)
F2 (15A 600V)
OPENED BY SCREWDRIVER
BUTTON
WARNING
WARNING
OPENED BY COIN
FUSE COVER
CAUTION
TO AVOID ELECTRIC SHOCK, THE POWER
CORD PROTECTION GROUNDING CONDUCTOR
MUST BE CONNECTED TO GROUND.
NO INTERNAL USER SERVICEABLE PARTS. REFER
SERVICE TO QUALIFIED SERVICE PERSONNEL.
198V
~
264V
50/60
Hz
90V
~
SERIAL NO.
MANUFALTURED BY APPA TECHNOLOGY CORP.
MADE IN TAIWAN
Use only with a 250V fuse
Emloyer uniquement avce
un fusible de 250V
132V
50/60
Hz
WARNING
DISCONNECT INPUT POWER BEFORE
REPLACING FUSE. FOR FIRE PROTECTION
REPLACE ONLY WITH SPECIFIED
TYPE AND RATED FUSE.
FUSE: 80mA/250V, FAST, 5x20mm
WARNING
Figure 3b Fuse Replacement
Figure 3B. Fuse Replacement
28
Figure 3C. Carrying Strap Attachment
29
30
United Kingdom:
Espa&ntilde;a:
Fran&ccedil;ais:
RS Components UK
PO Box 99, Corby,
Northants.,
NN17 9RS
RS Amidata SA
Parque Empresarial Urbis Center
Avda de Europa 19 – Edificio 3
28224 Pozuelo de Alarc&oacute;n
Madrid
Espa&ntilde;a
Radiospares Composants SNC
Rue Norman King
BP453
F-60031 Beauvais Cedex
France
Tel: 01536 201234
Fax: 01536 405678
rswww.com
Deutschland:
RS Components GmbH
Hessenring 13b
64546 M&ouml;rfelden-Walldorf
Telefon: 06105/401-0
Fax: 06105/401-100
www.rsonline.de
Tel: (34) 902 10 07 11
www.amidata.es
Tel: (33) 3 44 10 1500
Fax: (33) 3 44 10 1507
http://www.radiospares.fr
Italia:
RS Components SpA
Via M.V. De Vizzi 93/95
20099 Cinisello Balsamo (Mi)
Tel: +39 02 66058.1
Fax: +39 02 66058.051
www.rs-components.it
This instrument is warranted to the original purchaser against defects in material and workmanship for 3 years from the date of purchase. During this warranty period,
RS Components will, at its option, replace or repair the defective unit, subject to verification of the defect or malfunction. This warranty does not cover disposable batteries,
fuses or damage from abuse, neglect, accident, unauthorized repair, alteration, contamination, or abnormal conditions of operation or handling.
Any implied warranties arising out of the sale of this product, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited
to the above. RS Components shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim
or claims for such damage, expense or economic loss. Some states or countries laws vary, so the above limitations or exclusions may not apply to you. For full terms and
conditions, refer to the current RS Catalogue.
31
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Key features

3½ digit (2000 count) LCD
Auto ranging function
Max/Min recording
Data hold function
Mains and battery powered
Backlit LCD
Audible Continuity Test
Diode Check
Capacitance Measurement
Frequency Measurement

Frequently asked questions

Disconnect the test leads from any circuit under test and remove them from the instrument. Turn the ON / OFF switch on the rear panel to off and remove the mains power lead from the instrument. Use a finger or thumb to release the catch on the accessory compartment and open the cover. Remove any stored accessories. Use a slotted screwdriver or other appropriate tool to release the catch on the battery cover at the rear of the compartment and remove the cover. Retain the cover. Disconnect the battery connector clip and remove the battery holder from the battery compartment. Retain the battery holder. Remove the exhausted batteries from the battery holder and replace them with new ones. Observe the correct polarity as marked on the battery holder. Do not mix batteries of different types or old and new batteries. Reconnect the battery connector clip and refit the battery holder into the battery compartment. Refit the battery compartment cover removed in para. 3 above. Replace the accessories removed in para. 2 above. Close the accessory compartment cover. Turn the instrument on and check for correct operation.

Disconnect the test leads from any circuit under test and remove them from the instrument. Turn the ON / OFF switch on the rear panel to off and remove the mains power lead from the instrument. Use a finger or thumb to release the catch on the accessory compartment and open the cover. Remove any stored accessories. Use a slotted screwdriver or other appropriate tool to release the catch on the fuse cover at the front of the compartment and remove the cover. Retain the cover. Use a slotted screwdriver or other appropriate tool to gently lever one end of the fuse loose from the fuse-clip and slide the fuse out from the remaining fuse-clip. Fit a new fuse into the fuse-clip of the size and type given in Section 3.1 “General Specifications”. Ensure the fuse is centered in the fuse holder. Refit the fuse compartment cover removed in para. 3 above. Replace the accessories removed in para. 2 above. Close the accessory compartment cover. Turn the instrument on and check for correct operation. Dispose of the removed fuse(s) in accordance with local regulations.

Disconnect the test leads from any circuit under test and remove them from the instrument. Turn the ON / OFF switch on the rear panel to off and remove the mains power lead from the instrument. Locate the Mains fuse holder on the rear panel. Use a slotted screwdriver to release the fuse drawer. Remove the fuse from the fuse drawer. Fit a new fuse of the type given in Section 3.1 “General Specifications”. Close the fuse drawer. Reconnect the mains connector. Turn the instrument power on and check for correct operation. Dispose of the removed fuse in accordance with local regulations.