PeakTech 1070 Digital Multimeter Instruction Manual

1070 Digital Multimeter
Instruction Manual Operation manual

Safety Precautions

This product complies with the requirements of the following directives of the European Union for CE conformity: 2014/30/EU (electromagnetic compatibility), 2014/35/EU (low voltage), 2011/65/EU (RoHS).
Overvoltage category III 300V; TÜV/GS; pollution degree 2.

CAT I:| For signal level, telecommunication, electronic with small transient over voltage
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CAT II:| For local level, appliances, main wall outlets, portable equipment
CAT III:| Supplied from a cable under earth; fixed installed switches, automatic cut-off or main plugs
CAT IV:| Units and installations, which are supplied overhead lines, which are stand in a risk of persuade of a lightning, i.e. main-switches on current input, overvoltage-diverter, current use counter.

To ensure safe operation of the equipment and eliminate the danger of serious injury due to short-circuits (arcing), the following safety precautions must be observed.
Damages resulting from failure to observe these safety precautions are exempt from any legal claims whatever.

• Do not use this instrument for high-energy industrial installation measurement.

• Do not place the equipment on damp or wet surfaces.

• Do not exceed the maximum permissible input ratings (danger of serious injury and/or destruction of the equipment).

• The meter is designed to withstand the stated max voltages. If it is not possible to exclude without that impulses, transients, disturbance or for other reasons, these  voltages are exceeded a suitable presale (10:1) must be used.

• Replace a defective fuse only with a fuse of the original rating.
  Never short-circuit fuse or fuse holding.

• Disconnect test leads or probe from the measuring circuit before switching modes or functions.

• Do not conduct voltage measurements with the test leads connected to the mA/A- and COM-terminal of the equipment.

• To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any resistance measurements.

• Do not conduct current measurements with the leads connected to the V/-terminals of the equipment.

•  Check test leads and probes for faulty insulation or bare wires before connection to the equipment.

• Please use only 4mm-safety test leads to ensure immaculate function.

• To avoid electric shock, do not operate this product in wet or damp conditions. Conduct measuring works only in dry clothing and rubber shoes, i. e. on isolating mats.

• Never touch the tips of the test leads or probe.

• Comply with the warning labels and other info on the equipment.

• The measurement instrument is not to be to operated unattended.

• Always start with the highest measuring range when measuring unknown values.

• Do not subject the equipment to direct sunlight or extreme temperatures, humidity or dampness.

• Do not subject the equipment to shocks or strong vibrations.

• Do not operate the equipment near strong magnetic fields (motors, transformers etc.).

• Keep hot soldering irons or guns away from the equipment.

• Allow the equipment to stabilize at room temperature before taking up measurement (important for exact measurements).

• Do not input values over the maximum range of each measurement to avoid damages of the meter.

• Do not turn the rotary function switch during voltage or current measurement, otherwise the meter could be damaged.

• Use caution when working with voltages above 60V DC or 30V AC.
  These Voltages pose shock hazard.

• Replace the battery as soon as the battery indicator appears. With a low battery, the meter might produce false reading that can lead to electric shock and personal injury.

• Fetch out the battery when the meter will not be used for long period.

• Periodically wipe the cabinet with a damp cloth and mid detergent.
  Do not use abrasives or solvents.

• The meter is suitable for indoor use only

• Do not operate the meter before the cabinet has been closed and screwed safely as terminal can carry voltage.

• Do not store the meter in a place of explosive, inflammable substances.

• Do not modify the equipment in any way

• Do not place the equipment face-down on any table or work bench to prevent damaging the controls at the front.

• Opening the equipment and service – and repair work must only be performed by qualified service personnel

• Measuring instruments don’t belong to children hands.

Cleaning the cabinet
Clean only with a damp, soft cloth and a commercially available mild household cleanser. Ensure that no water gets inside the equipment to prevent possible shorts and damage to the equipment.

1.2. Multimeter Safety
Be sure to follow the warnings in this manual. Erroneous use may put human bodies in danger.
The following legend applied to this manual:

| Ground (allowable applied voltage range between the input terminal and earth)
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| Refer to the instruction manual (very important description for safe use)
| Direct current (DC)
| Alternating current (AC)
| Replace fuses with amp/volt rating shown
****| Double insulation (Protection class II)
| TÜV/GS approved; TÜV-Rheinland

Introduction

The pocket-size Digital multimeter is suitable for engineers and also for the hobbiest. The unit has 6 different measuring functions with 19 ranges.

1. Display
   3 ½-digit (2000 Counts), 13 mm height LCD-display.

2. Switch
   Rotational switch which situated at the middle of the front case. It is used for the selection of FUNCTION, RANGE and POWER ON-OFF. In order to save energy please turn the switch to “OFF” position when not in use.

3. 10 A jack
   For the input of more than 200 mA current

4. V//mA jack
   Voltage, resistance, mA not more than 200 mA current and battery input test jack

5. “COM” jack
   Common jack

Features

3.1.  DC Voltage

Input Impedance: 1 MW on all ranges Overload Protection: 300 V DC or ACrms
3.2.  AC Voltage

Overload Protection: 300 V ACrms Indication: Average value, calibrated at rms of sine wave

3.3.  DC Current

Overload Protection: F 250 mA/300 V fuse Overload Protection: F 10 A/300 V fuse Measurement up to 10 A only for 10 second, each 15 min. to perform

3.4.  Resistance

Max. open circuit voltage: 3,2 V

3.5. Audible continuity
Audible threshold: Less than 20 to 150 Test current: < 1,2mA

3.6. Diode
Diode: Testing voltage approx. 2,8 V, current 1,5 mA, indicate forward diode approx. value.

3.7. Temperature

Operating instruction

Attention! For reasons of safety the maximal permissible input voltage towards earth (ground) it isn’t allowed to be crossing over 300 V. At disregard there is a risk of injury  (electrical shock) and the risk of damaging of the internal circuits.
Before measuring, check the instrument and the test leads for possible damaging.

4.1. Voltage measurement (DC V)

1. Connect red test lead to “V//mA” jack, black test lead to “COM” jack.
2. Set the FUNCTION switch to the desired V DC position. If not sure, set to the highest range.
3. Connect the test leads across the source or load under measurement.

4.2. AC voltage measurement (AC V)

1. Connect red test lead to “V/mA” jack, black test lead to “COM” jack.
2. Set the FUNCTION switch to the desired AC V position.
3. Connect the test leads across the source or load under measurement.

4.3. DC current measurement (DC A).

1. Connect red test lead to “V/mA” jack when the current is less than 200 mA and to “10 A” jack when the current is larger than 200 mA. Connect the black test lead  to “COM” jack.
2. Set the function switch to the desired DC A position.
3. Connect the test leads across the source or load under measurement.

4.4. Resistance measurement (Ω)

1. Connect red test lead to V/Ω/mA jack, black test lead COM jack.
2. Set the FUNCTION switch to the Ω-position.
3. onnect the test leads across the resistor under measurement.
4. When measuring the resistance, the power should be turned off and in short circuit statues by connecting the two test leads.

Note:
When you short the test leads in the 200 Ω range, your meter display a small value (no more than 0.3 Ω). This value is due to your meters and test leads internal  resistance. Make a note of this value and subtract it from small resistance measurements for better accuracy.

4.5. Continuity test

1. Connect the black test lead to the COM-jack and the red test lead to the V/Ω/mA-jack. (Note: The polarity of the red lead connection is positive “+”)
2. Set the function switch to °)/Diode position.
3. In continuity testing if continuity exists (i.e. resistance less than about 20 to 150Ω) built-in buzzer will sound.
   CAUTION! Never perform a continuity measurement on a circuit that has power connected!

4.6. Diode

1. Connect red test lead to “V/Ω/mA” jack, black test lead to “COM” jack.
2. Set the FUNCTION switch to the *) position and connect the red test leads to the anode of diode and black to cathode. The display will then show the approx. forward  voltage of this diode. If connect the test leads on the other way round, the display will show an overrange status “OL”

4.7. Temperature measurement
Warning!
To avoid electric shock, disconnect both test probes from any source of voltage before making a temperature measurement.

1. Connect the K-type thermocouple to „V/mA“ and „COM“ jacks
2. Set the rotary function switch to the “TEMP” position.
3. Connect the thermocouple to the object to be measured.
4. Read the temperature value in °C on the LCD.

Warning!
To avoid electric shock, be sure, that the thermocouple has been removed before changing to another measurement function.
Note:
By selecting the temperature measuring function (°C), the display shows a temperature value. This value shows the internal temperature of the unit and not the ambient temperature.
A correct temperature measurement it only possible, if a suitable thermocouple is plugged into the input of the unit.

Battery and fuse replacement

Warning! To avoid electrical shock, disconnect all test leads and any input signals before replacing the battery. Replace only with same type of battery. A defect fuse is mostly the result of operating error. Use the following procedure to replacing the battery:

1. Disconnect all test leads from any live source, turn the rotary switch to OFF and remove all test leads from the input terminals.
2. The battery cover is secured to the rear cover by two screws. Using a screwdriver, remove the 2 screws from the case and remove the rear cover.
3. Remove battery and replace with a new 9 V battery.
4. Replace the rear cover and reinstall the screws.
5. While putting in the battery observe the polarity.
6. Batteries, which are used up dispose duly. Used up batteries are hazardous and must be given in the, for this being supposed, collective container.
7. Important! A defect fuse must be replaced by a fuse with the same connection value of 250 mA / 300 V or 10 A / 300 V.

Statutory Notification about the Battery Regulations
The delivery of many devices includes batteries, which for example serve to operate the remote control. There also could be batteries or accumulators built into the device itself. In connection with the sale of these batteries or accumulators, we are obliged under the Battery Regulations to notify our customers of the following:
Please dispose of old batteries at a council collection point or return them to a local shop at no cost. The disposal in domestic refuse is strictly forbidden according to the Battery Regulations. You can return used batteries obtained from us at no charge at the address on the last side in this manual or by posting with sufficient stamps.

Batteries, which contain harmful substances, are marked with the symbol of a crossed-out waste bin, similar to the illustration shown left. Under the waste bin symbol is the chemical symbol for the harmful substance, e.g. „Cd“ for cadmium, „Pb“ stands for lead and „Hg“ for mercury.
You can obtain further information about the Battery Regulations from the Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit (Federal Ministry of Environment, Nature Conservation and Reactor Safety).

All rights, also for translation, reprinting and copy of this manual or parts are reserved. Reproductions of all kinds (photocopy, microfilm or other) only by written permission  of the publisher.
This manual is according the latest technical knowing. Technical changings which are in the interest of progress, reserved.
We herewith confirm that the units are calibrated by the factory according to the specifications as per the technical specifications.
We recommend to calibrate the unit again, after 1 year.
© PeakTech® 07/2021/Po./Ehr

PeakTech Prüf- und Messtechnik GmbH – Gerstenstieg 4 –
DE-22926 Ahrensburg / Germany
+49-(0) 4102-97398 80
+49-(0) 4102-97398 99
[email protected] 
**** www.peaktech.de

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