Laserliner Compact Universal Multimeter Instruction Manual

: June 8, 2024
: Laserliner

Table of Contents

Function/Application
Safety instructions
Additional information on use
Maximum limit values
Technical data
Information on maintenance and care
References
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Compact Universal Multimeter
Instruction Manual Laserliner Compact Universal
Multimeter

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, resistance and check diodes 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.
CAT III**| 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 conductiveresidue, 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.
The lowest overvoltage category (CAT), rated voltage and rated current apply when using the device together with the measuring equipment.
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.
Only the original measuring leads may be used. Their voltage, category and ampere rated powers must match those of the measuring device.

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, 4. Earthing and short- circuiting, 5. 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.

Laserliner Compact Universal Multimeter - Figure 1

Rotary switch to set the measuring function
Red input socket (+)
Black COM socket (–)
Red 10 A input socket (+)
LCD
Test prods
Measuring contacts: red “+”, black “–”

Laserliner Compact Universal Multimeter - Figure 2

A Measured value display (3 1/2 segments, 1,999 digits)
B Low battery charge
C Negative measured values
D Warning: High voltage

Maximum limit values

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Replacing the battery / fuses
To replace the battery or fuses, first disconnect the test prods from their voltage source and then from the device. 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.
1 F 250 mA / 300 V (Ø 5 mm x 20 mm)
2 F 10 A / 300 V (Ø 5 mm x 20 mm)
3 1 x 9 V NEDA 1604 / IEC 6F22
Connection of test prods
The black test prod (–) must always be connected to the “COM socket”. When taking current measurements > 200 mA the red test prod (+) must be connected to the “10 A socket”. For all other measuring functions, the red test prod must be connected to the “VmAΩ socket”.
Before measuring, make sure that the test prods are connected correctly as the built-in fuse could otherwise trip and damage the measuring circuit.
Notes on measurement
If the value of the measured variable is not known in advance, set the rotary switch to the highest measuring range or use the 10 A connection with the 10 A measuring range to measure current. Then reduce the measuring range step by step until a satisfactory resolution is achieved.
Voltage measurement DC
To measure voltage, set the rotary switch to the “V ” position with the corresponding measuring range (200 mV – 300 V).
Then connect the measuring contacts to the object to be tested.
The measured value acquired and the polarity appear on the display.
Voltage measurement AC
To measure voltage, set the rotary switch to the “V∼” position with the corresponding measuring range (200 V / 300 V).
Then connect the measuring contacts to the object to be tested.
The measured value acquired appears on the display.
A Current measurement DC
To measure current, set the rotary switch to the “A ” position with the corresponding measuring range (2,000 μA – 10 A).
Ensure that the test prods are connected correctly.
2,000 μA – 200 mA = VmAΩ socket > 200 mA – 10 A = 10 A-socket
Disconnect the circuit before connecting the meter. Then connect the measuring contacts to the object to be tested.
The measured value acquired and the polarity appear on the display.
Disconnect the circuit again before disconnecting the meter.
Do not measure currents above 2 A for longer than 10 seconds within 15 minutes. This could damage the device or the test prods.
Current above 200 mA must not be measured in the μA / mA range and currents above 10 A must not be measured in the A range. Otherwise the corresponding built- in fuse will trip (F 250 mA / 300 V, F 10 A / 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 = 1.5 V round cells / AA, AAA, C, D
1.2 V round cells (NiMH) / AA, AAA, C, D
9 V = 9.0 V flat cells / E-block
8.4 V flat cells (NiMH) / E-block
Then connect the measuring contacts to the battery.
The battery voltage is shown on the display. You can read off the battery charge status from the following scale.
Good: battery fully charged
Weak: battery is weak and will soon need replacing
Replace: battery is flat and should be replaced
Example
Battery: Alkaline 9 V
Measured voltage: 6.2 V
Battery charge status: weak
Diode test
To test the diode, turn the rotary switch to position ” “.
Then connect the measuring contacts to the diode.
The measured value acquired for the forward voltage appears on the display.
If “1” appears on the display instead of a measured value, the diode has either been tested in the reverse direction or is faulty.
If 0.0 V is measured, the diode is faulty or a short-circuit has occurred.
Resistance measurement Ω
To measure resistance, set the rotary switch to the “Ω” position with the corresponding measuring range (200 Ω – 2,000 kΩ).
Then connect the measuring contacts to the object to be tested. The measured value acquired appears on the display.

If “1” appears on the display instead of a measured value, either the measuring range has been exceeded or the measuring circuit is not closed or has been interrupted. Laserliner Compact Universal Multimeter - Figure
14

****Resistances can only be measured correctly in isolation; therefore, the components might need to be disconnected from the remainder of the circuit.
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	1 Accuracy
Max. input	voltage	300 V AC / DC
DC voltage	200 mV	± (0.5% rdg
2,000 mV	± (0.8% rdg + 5 digits)

Subject to technical alterations. 09.2017

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.
Further safety and supplementary notices at: http://laserliner.com/info?an=mume

Laserliner Compact Universal Multimeter - Figure 15

SERVICE
Umarex GmbH & Co. KG
– Laserliner –
Möhnestraße 149, 59755 Arnsberg, Germany
Tel.: +49 2932 638-300, Fax: +49 2932 638-333
info@laserliner.com

Umarex GmbH & Co. KG
Donnerfeld 2
59757 Arnsberg, Germany
Tel.: +49 2932 638-300, Fax: -333
www.laserliner.com