Laserliner MultiMeter-Home Compact Analogue Multimeter Instruction Manual

: June 8, 2024
: Laserliner

Table of Contents

Function / Application
Symbols
Safety instructions
Product Overview
Maximum limit values
Technical data
Information on maintenance and care
EU directives and disposal
SERVICE
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Laserliner MultiMeter-Home Compact Analogue Multimeter Instruction Manual

Completely read through the operating instructions, the “Warranty and Additional Information” booklet as well as the latest information under the internet link at the end of these instructions. Follow the instructions they contain. This document must be kept in a safe place and passed on together with the device.

Function / Application

Multimeter for taking measurements in the range of overvoltage category CAT III up to max. 300 V. The multimeter can be used to measure DC and AC voltages, direct current, battery charge status and resistance within the specified ranges.

Symbols

Hazardous electrical voltage warning: Unprotected live components inside the device housing may pose a risk of electric shock.

**** Danger area warning.

Protection class II: The test device has reinforced or double insulation.

Overvoltage category III: Equipment in fixed installations and for applications where specific requirements with regard to the reliability and availability of equipment have to be met, e.g. circuit-breakers in fixed installations and devices used in industrial applications which are permanently connected to the fixed installation.

Safety instructions

The device must only be used in accordance with its intended purpose and within the scope of the specifications.
The measuring tools and accessories are not toys. Keep out of reach of children.
Modifications or changes to the device are not permitted, this will otherwise invalidate the approval and safety specifications.
Do not expose the device to mechanical stress, extreme temperatures, moisture or significant vibration.
Exercise extreme caution when working with voltages higher than 24 V/AC rms or 60 V/DC. Touching the electrical conductors at such voltages poses a risk of life-threatening electric shocks.
If the device comes into contact with moisture or other conductive-residue, work must not be carried out under voltage. At and above voltages of 24 V/AC rms / 60 V/DC, the presence of moisture creates the risk of life-threatening electric shocks.
Clean and dry the device before use.
When using the device outdoors, make sure that the weather conditions are appropriate and/or that suitable protection measures are taken.
In overvoltage category III (CAT III), the voltage between the test device and earth must not exceed 300 V.
Before taking any measurements, make sure that both the area to be tested (e.g. a line), the test device and the accessories used (e.g. connection cable) are in proper working order. Test the device by connecting it to known voltage sources (e.g. a 230 V socket in the case of AC testing or a car battery in the case of DC testing).
The device must no longer be used if one or more of its functions fail or the battery charge is weak.
The device must be disconnected from all power sources and measuring circuits before opening the cover to change the battery(ies) or fuse(s). Do not switch on the device with the cover open.
Observe the safety precautions of local and national authorities relating to the correct use of the device and any prescribed safety equipment (e.g. electrician‘s safety gloves).
If you have to take hold of the measuring spikes, do so by the grip sections only. Do not touch the measuring contacts whilst the measurement is being taken.
Make sure that you always select the correct connections and rotary switch position with the correct measuring range for the measurement to be carried out.
Do not work alone in the vicinity of hazardous electrical installations and only under the guidance of a qualified electrician.
Disconnect the power supply to the electrical circuit before measuring or checking the diodes, resistance or battery charge. Make sure that all high-voltage capacitors are discharged. To check, remove the measuring leads of the device from the test piece before changing the mode.
Check that all high-voltage capacitors are discharged.
When connecting to a voltage, always connect the black measuring lead first before the red lead. Follow the reverse procedure when disconnecting.

Additional information on use

Observe the technical safety regulations for working on electrical systems, especially:

Safely isolating from power supply,
Securing to prevent system being switched on again,
Checking zero potential, two-pole,
Earthing and shortcircuiting.
Securing and covering adjacent live components.

Safety instructions

Dealing with electromagnetic radiation

The measuring device complies with electromagnetic compatibility regulations and limit values in accordance with EMC-Directive 2014/30/EU.
Local operating restrictions – for example, in hospitals, aircraft, petrol stations or in the vicinity of people with pacemakers – may apply. Electronic devices can potentially cause hazards or interference or be subject to hazards or interference.

Product Overview

Analogue scale
Rotary knob for setting the zero point
Rotary knob for setting the zero point for measuring resistance
Rotary switch to set the measuring function
Holder for test prods
Test prods
Measuring contacts: red “+“, black “–“

A Resistance measurement (“OHM“)
B Voltage measurement DC,
Current measurement DC (“V,mAw“)
C Voltage measurement AC (“ ν “)
D Battery charge status measurement (“BATT.“)
E OL: Open line/overflow: measuring circuit not closed or measuring range exceeded

Maximum limit values

Function	Maximum limit values
V DC / V AC	300 V DC, 300 V AC
A DC	600 mA
Batteries	9 V

Replacing the battery / fuse

To replace the battery or fuse, first disconnect the test prods from all voltage sources. Undo all the screws at the rear of the device and replace the battery or replace the defective fuse by a fuse of the same type and rating. Do not touch the green pc-board. Also make sure it is kept clean. Close the housing and carefully screw the meter back together. Do not switch on the device with the cover open.
Battery Replacement

Be sure to pay attention to polarity.

1 x 1.5 V type AAA
F 630 mA / 300 V (Ø 5 mm x 20 mm)

Turn the rotary switch to position “Ω“. Hold the two test prods so that they touch and with rotary knob (3) adjust the pointer exactly to “0“ on the OHM- scale (A). If this is not possible, the battery needs to be replaced.

Notes on measurement

Before each measurement, check that the pointer is set exactly to „0“ on the V.mA /V -scale (B/C). If not, adjust the pointer with rotary knob (2).
If the value of the measured variable is not known in advance, set the rotary switch to the highest measuring range. Then reduce the measuring range step by step until a satisfactory resolution is achieved.

If the pointer remains to the left of the “0“ during the measurement or to the right of the “0“ when measuring resistance, either the test prods are mixed up or the measuring circuit is interrupted. Repeat the measurement with the test prods changed over.
Meter Instructions
The measuring range is exceeded if the pointer remains to the right of “300“ (“60“/ “12“) or to the left of “1 kΩ“ when measuring resistance. Repeat the measurement with a higher measuring range.

V Voltage measurement DC

To measure voltage, set the rotary switch to the “ V “ position with the corresponding measuring range (12 V – 300 V).
Then connect the measuring contacts to the object to be tested.

Reading the scale (B):

Measuring range	Scale	Result
12 V	0 – 12	x 1
60 V	0 – 60	x 1
120 V	0 – 12	x 10
300 V	0 – 300	x 1

V~ Voltage measurement AC

To measure voltage, set the rotary switch to the “ V~ “ position with the corresponding measuring range (60 V – 300 V).
Then connect the measuring contacts to the object to be tested.
Voltage measurement AC

Reading the scale (C):

Measuring range	Scale	Result
60 V	0 – 60	x 1
120 V	0 – 12	x 10
300 V	0 – 300	x 1

mA Current measurement DC

To measure current, set the rotary switch to the “ “ position with the corresponding measuring range (30 mA / 600 mA).

Disconnect the circuit before connecting the meter. Then connect the measuring contacts to the object to be tested.
Current measurement DC

Reading the scale (B):

Measuring range	Scale	Result
30 mA	0 – 300	: 10
600 mA	0 – 60	x 10

Disconnect the circuit again before disconnecting the meter.

No currents above 600 mA may be measured in the mA range. Currents above this level trigger the automatic ! fuse in the meter (F 630 mA / 300 V, Ø 5 mm x 20 mm).

BAT. Battery charge status measurement

To measure the battery charge status, set the rotary switch to the “BAT.“ position with the corresponding measuring range.

1.5 V round cells / AA, AAA, C, D 9.0 V flat cells / E-block

Then connect the measuring contacts to the battery.
Charge status measurement

3-colour display scale (D):

Colour	Battery charge status
green	Good: batteryfully charged
orange	Weak: battery is weak and will soon need replacing
red	Replace: battery is flat and should be replaced

Ω Resistance measurement

To measure resistance, set the rotary switch to the “Ω” position with the corresponding measuring range (X10Ω – X1kΩ).
Before each measurement, check that the pointer is set exactly to „0“ on the OHM-scale (A). Hold the two test prods so that they touch and, if necessary, adjust the pointer with rotary knob (3).

Then connect the measuring contacts to the object to be tested.

Reading the scale (A):

Measuring range	Scale	Result
X10Ω	0 Ω – 1 kΩ	x 10
X1kΩ	0 Ω – 1 kΩ	x 1000

Resistances can only be measured correctly in isolation; therefore, the components might need to be disconnected from the remainder of the circuit.
Resistance measurement

**** When measuring resistance, to avoid the risk of the results of a measurement being distorted, there must be no traces of ! dirt, oil, solder spray or other contamination on the test prods.

Technical data

Function	Range	Accuracy
Max. input voltage	300 V AC / DC
DC voltage	12 V	± 5% / final value

Information on maintenance and care

Clean all components with a damp cloth and do not use cleaning agents, scouring agents and solvents. Remove the battery(ies) before storing for longer periods. Store the device in a clean and dry place.

EU directives and disposal

This device complies with all necessary standards for the free movement of goods within the EU.

This product is an electric device and must be collected separately for disposal according to the European Directive on waste electrical and electronic equipment.
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