Gossen MetraWatt METRALINE DM 41 Operating Instructions Manual
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Summary of Contents for Gossen MetraWatt METRALINE DM 41
- Page 1 Operating Instructions METRALINE DM 41 3-447-024-03 Digital Multimeter 3/6.24...
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Page 2: Table Of Contents
Current Measurement ..............23 AC Current Measurement with Current Transformer ....25 7.1.1 Transformer output mA/A ................ 25 7.1.2 Transformer Output mV/A ...............25 Diode Testing and Continuity Testing ........27 Diode Testing ................ 27 Continuity Testing ..............28 Resistance Measurement ............29 Gossen Metrawatt GmbH... - Page 3 Storage and Transport ............. 35 Maintenance ................36 14.1 Replacing the Batteries ............36 14.2 Fuses ..................37 14.3 Housing / Cleaning ..............38 Disposal and Environmental Protection ........39 Contact, Support and Service ..........41 Guarantee Statement ............... 42 Gossen Metrawatt GmbH...
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Page 4: Safety Instructions
Use only the specified accessories (included in the scope of delivery or listed as options) with the device. • Carefully and completely read and adhere to the product documentation for optional accessories. Retain these doc- uments for future reference. Gossen Metrawatt GmbH... - Page 5 GmbH are designed to function ideally with products from Gossen Metrawatt GmbH which are specifically intended for this purpose. Unless expressly confirmed otherwise in writing by Gossen Metrawatt GmbH, they are not intended or suitable for use with other products. •...
- Page 6 IP protection code, measuring category etc.). • Do not use the device in potentially explosive atmospheres. Danger of explosion! • Do not use the device in areas subject to the risk of fire. Danger of fire! Gossen Metrawatt GmbH...
- Page 7 • As far as possible, do not move or remove plugs, test probes, alligator clips or Kelvin probes until testing/mea- surement has been completed. Unwanted sparking may otherwise occur due to test cur- rent. Gossen Metrawatt GmbH...
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Page 8: Applications
Unauthorized modification of the product is prohibited. Only authorized, trained personnel is permitted to perform repairs. 2.4 Liability and Guarantee Liability and warranty granted by Gossen Metrawatt GmbH are governed by the applicable contractual and mandatory statu- tory provisions. The Instrument 3.1 Scope of Delivery... -
Page 9: Multimeter Controls
4 Button for automatic or manual measuring range selection 5 Hz/% key for V & V 6 Key for data HOLD function (freeze measured value) 7 Backlight key (optional) 8 Rotary switch for ON/OFF and measuring functions 9 Connector jacks Gossen Metrawatt GmbH... -
Page 10: Lcd Display
The digital display is refreshed three times per second for V, A, , capacitance, frequency and duty cycle measurements. Backlight (optional) By pressing the key, the backlight can be switched on or off to enable the user to conduct measurements in poor light- ing conditions. Gossen Metrawatt GmbH... -
Page 11: Buzzer
Warning concerning a source of danger (Attention, observe the operating instructions) Earth connection (earth terminal) Double or reinforced insulation CAT II / III / IV Device for measurement categories category II / III or IV European conformity marking Gossen Metrawatt GmbH... -
Page 12: Technical Data
0.45 V 500 V 10 min DC/AC 40,000 M 100 m 2 + 5 400.0 100 m Acoustic Signal for 0 … < approx. 75 1.000 V 1 mV approx. 1 V 2 + 10 Gossen Metrawatt GmbH... - Page 13 10 min VDC/AC 1300 C NiCr-Ni limited by 10A fuse Display for frequency measurement extended to 9999 digits at 0 °C + 40 °C With zero adjustment "REL". The time required for the measurement is approximately 60 seconds. Gossen Metrawatt GmbH...
- Page 14 3¾ digits correspond to 3999 steps Overflow display "OL" Polarity display The "-" sign is displayed when the posi- tive pole is at " " Sampling rate 3 measurements per second for V, I, capacitance, frequency and duty cycle measurement Gossen Metrawatt GmbH...
- Page 15 Series Mode max. 1000 V 50/60 Hz sine > 43 dB Interference max. 1000 V > 55 dB Voltage Influence of the auxiliary voltage: (without display) - all ranges except capacity: ± 8 D cap. range 20 D Gossen Metrawatt GmbH...
- Page 16 Interference emission EN 61326, class B Interference immunity IEC 61000-4-2: 8 kV atmospheric dis- charge, 4 kV contact discharge IEC 61000-4-3: 3 V/m Note Electromagnetic interference can cause a short-term deviation in the measured values and thus reduce the specific operating quality. Gossen Metrawatt GmbH...
- Page 17 VDE 0843-02-2-1 laboratory use – EMC requirements – Part 2-1: Special requirements for sensitive test and measuring instruments DIN EN 60529 Test instruments and test procedures DIN VDE 0470-1 Degrees of protection provided by enclosures (IP code) Gossen Metrawatt GmbH...
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Page 18: Initial Startup
Reset the multimeter by setting it to OFF and then back to ON. If the procedure is unsuccessful, dis- connect the battery from the contacts for a short time. Gossen Metrawatt GmbH... - Page 19 Your multimeter switches OFF automatically after 15 minutes if no keys or the function selector switch have been pressed during this time. Switching the multimeter back on Press the HOLD key. Switching off the multimeter Turn the function selector switch to the OFF position. Gossen Metrawatt GmbH...
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Page 20: Operation
MAN key until you hear a second beep and the display switches to AUTO. If you switch back to automatic operation in the 400 mV~ range, the 4 V~ range is activated. Example: Manual measuring range selection for V AC Gossen Metrawatt GmbH... -
Page 21: Measured Value Memory "Hold
AUTO/MAN key is pressed. 5.5 REL - Relative value measurement The REL key is used to measure relative values and acts as an activation. All functions can be used with the relative value measurement, except Hz / duty. Gossen Metrawatt GmbH... -
Page 22: Voltage Measurement
AC and DC, which is also confirmed by an acoustic signal. The AC and DC symbols indicate the selected voltage type on the LCD display. After selecting this function using the rotary switch, the DC voltage type is always activated. Gossen Metrawatt GmbH... -
Page 23: Current Measurement
1 Select function A with the function selector switch for cur- rents > 400 mA or function mA for currents < 400 mA. When measuring currents of unknown quantity, switch on the highest current measuring range first. Gossen Metrawatt GmbH... - Page 24 Interrupt the current flow immediately after you have completed the measurement! Continuous high current flow may damage the instru- ment. Please note in particular that currents continue to flow even after the instrument has been switched off auto- matically (MoFF). Gossen Metrawatt GmbH...
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Page 25: Ac Current Measurement With Current Transformer
7.1.2 Transformer Output mV/A Some transformers have a voltage output (referred to as mV/ A). The secondary connection must therefore be connected to the connection sockets " " and "V". Gossen Metrawatt GmbH... - Page 26 Primary conductor 7.1.2 7.1.1 When reading the measured values in V, consider the transfor- mation ratio of the transformer and the fact that the display shows current values as well as the additional display error. Gossen Metrawatt GmbH...
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Page 27: Diode Testing And Continuity Testing
1,000 V, you can also test several elements connected in series. Reverse Direction or Interruption The measuring instrument displays a voltage of „OL“. Note Resistors and semiconductor paths parallel to the diode distort the measurement results! Conducting Direction Reverse Direction Gossen Metrawatt GmbH... -
Page 28: Continuity Testing
The display of the symbol is activated. The instrument generates a continuous acoustic signal at a measured resistance of 0 to approximately < 75 . ➭ Connect the device under test as shown below. Gossen Metrawatt GmbH... -
Page 29: Resistance Measurement
This value is then auto- matically deducted from all measured values. Deleting Zero Adjustment ➭ Short-circuit the leads that are connected with the multi- meter and press the REL key afterwards. ➭ press the function selector switch Gossen Metrawatt GmbH... -
Page 30: Capacitance Measurement
" " socket at the "-" pole. Note Resistors and semiconductor paths connected in paral- lel to the capacitor distort the measurement results! To measure small value capacitors, please use short measurement cables! If the symbol is displayed, the measured values are invalid. Gossen Metrawatt GmbH... - Page 31 This value is then automatically deducted from all measured values. Deleting Zero Adjustment ➭ Press the REL key. Clearance is acknowledged by buzzer sound. ➭ press the function selector switch ➭ switch off the multimeter. Gossen Metrawatt GmbH...
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Page 32: Frequency And Duty Cycle Measurement
(%) mode is activated. The "%" symbol is shown on the LCD display. Note The Hz/% key only applies to V~ (white letter). ➭ Connections are established in the same way as for volt- age measurement. Gossen Metrawatt GmbH... - Page 33 ➭ The measuring range for the duty cycle and the maximum permissible voltage can be found in chapter 3.6 „Technical Data“. Press Press Press Press Hz/% key Hz/% key Hz/% key Hz/% key Gossen Metrawatt GmbH...
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Page 34: Temperature Measurement
K-type thermocouple (NiCr-Ni) in the range from 0 °C to +1300 °C. Thermocouples are available as optional accessories. For information see data sheet. ➭ Set the function selector switch to "°C". ➭ Connect the sensor as shown below. Gossen Metrawatt GmbH... -
Page 35: Storage And Transport
- Only transport the device within the permissible environmental conditions (temperatures, humidity, etc.), see chapter 3.6 on page 12. - For protection, we recommend the accessories available for the instrument (transport case etc.); details can be found in the device data sheet. Gossen Metrawatt GmbH... -
Page 36: Maintenance
15 on page 39. ➭ Insert two new 1.5 V mignon cells in accordance with the polarity symbols in the battery compartment. Attention! Only use batteries that comply with the technical data! See chapter 3.6 on page 12. Gossen Metrawatt GmbH... -
Page 37: Fuses
➭ Remove the defective fuse from the fuse holder, e.g. using a test probe, and replace it with a new one. ➭ Screw the cover of the housing base back onto the top. ➭ Make sure that the new fuses make good contact. Gossen Metrawatt GmbH... -
Page 38: Housing / Cleaning
Unsuitable cleaning agents such as aggressive or abra- sive cleansers result in damage to the instrument/ac- cessories. Use a cloth for cleaning, which has been slightly damp- ened with water. Avoid the use of cleansers, abrasives or solvents. Gossen Metrawatt GmbH... -
Page 39: Disposal And Environmental Protection
The battery type and its chemical compo- sition are indicated on the battery’s labelling. If the abbrevia- tions “Pb” for lead, “Cd” for cadmium or “Hg” for mercury are Gossen Metrawatt GmbH... - Page 40 Old devices, electrical or electronic accessories and waste batteries (including rechargeable batteries) used in Germany can be returned free of charge to Gossen Metrawatt GmbH or the service provider responsible for their disposal in compli- ance with applicable regulations, in particular laws concerning packaging and hazardous goods.
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Page 41: Contact, Support And Service
16 Contact, Support and Service Gossen Metrawatt GmbH contacted directly and conveniently – we have a single number for everything! Whether you require support or training, or have an individual inquiry, we can answer all of your questions here: +49 911 8602-0... -
Page 42: Guarantee Statement
In the event of theft or loss, the serial number is registered with us. (This data is important when filing claims with your insur- ance company) • Access to special downloads (e.g. software and firmware updates) • Information about important new products www.gossenmetrawatt.de/services/mygmc/ Gossen Metrawatt GmbH... - Page 43 Gossen Metrawatt GmbH...
- Page 44 © Gossen Metrawatt GmbH Prepared in Germany • Subject to change without notice / errors excepted • A pdf version is available on the Internet All trademarks, registered trademarks, logos, product names, and company names are the property of their respective owners.
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