Gossen MetraWatt METRISO 1000 IR Operating Instructions Manual
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Gossen MetraWatt METRISO 1000 IR Operating Instructions Manual

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Operating Instructions
®
METRISO
1000 IR
3-348-712-02
Insulation Tester
4/1.00

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Summary of Contents for Gossen MetraWatt METRISO 1000 IR

  • Page 1 Operating Instructions ® METRISO 1000 IR 3-348-712-02 Insulation Tester 4/1.00...
  • Page 2 (10) (11) GOSSEN-METRAWATT...
  • Page 3 (1) Pushbutton for „CONTINUOUSLY ON“ (2) Pushbutton (14) • for switching to autoranging with ISO- Ω measurement, • for measuring with automatic polarity reversal (12) (13) with Ω measurement and for switch-on of the lamp in the probe (3) Pushbutton •...

  • Page 4: Table Of Contents

    Contents Measuring low-ohmic resistances (0 ... 30 Ω ) .. 17 Safety precautions ..........5 Measuring with automatic polarity reversal .... 17 Applications ............6 Measuring with manual polarity reversal ....18 Getting started ............. 6 Finding the max. display values Inserting the batteries ..........

  • Page 5: Safety Precautions

    Safety precautions The insulation tester has been constructed and tested to Attention! comply with IEC 61557 / EN 61557 / VDE 0413 und IEC The fixed test leads have a double insulation in dif- 61010-1 / EN 61010-1 / VDE 0 411-1. ferent colors.

  • Page 6: Applications

    Applications Getting started The insulation tester complies with the following specifications: Inserting the batteries IEC 61557 / EN 61557 / VDE 0413 “Measuring and moni- toring facilities for testing the electrical safety in lines with nominal voltages up to AC 1000 V and DC 1500 V“. Attention! Part 1 „General“;...
  • Page 7 Test for nominal voltage 500 V and for the „ Ω “ range: Test for nominal voltages 250 V and 1000 V: í Set the rotary switch (6) to position „-Il-“. í Set the rotary switch (6) to position „-I|-“ as described above.

  • Page 8: Fastening The Carrying Strap And The Probe Holders

    Fastening the carrying strap and the probe holders Switching the tester on and off Fasten the carrying strap „Standby“ for minimum power consumption (14) and the two probe í Set the rotary switch (6) from the „OFF“ position to posi- holders (12) and (13) as “, to one of the „ISO- Ω...

  • Page 9: Lcd Display

    „CONTINUOUSLY ON“ When the upper range limit is exceeded, a triangle is shown at the end of the analog scale. When set to the „ISO- Ω “ and „ Ω “ positions, the tester measures only as long as you keep the pushbutton (8) in Detecting dangerous touch potentials the probe pressed (an exception is the „AUTO“...

  • Page 10: Measuring Dc And Ac Voltages

    Measuring DC and AC voltages Set the rotary switch (6) to the „1000 V “ position. If you press the measurement pushbutton (8) even though the measured value is not (yet) stable, only „HOLD“ is í Scan the measuring points with the two probes without shown and not „DATA“.

  • Page 11: Measuring The Insulation Resistance

    Measuring the insulation resistance Detecting external voltages You can measure insulation resistances on electrically dead ISO- Ω measurement up to 3 G Ω with autoranging devices only. That is why it is necessary to detect external í Set the rotary switch (6) to one of the three „ISO- Ω “ posi- voltages.

  • Page 12: Iso- Ω Measurement Up To 3 G Ω

    Analog indication: The entire measuring span of the ISO- Ω Starting the measurement measurement (all of the 6 automatically selectable measur- ing ranges) is shown on the analog scale in logarithmic Attention! scale in coherent form. This makes for changes in meas- An insulation measurement is blocked when a ured value to be quickly detected and observed over sev- voltage >...
  • Page 13 í Continue to contact the measuring points with the two probes. Attention! After releasing the measurement pushbutton, the voltage Do not touch the probe ends (9) and (10) when the tester scale is again shown on the analog indicator. After having is switched on for ISO- Ω...

  • Page 14: With Manual Range Selection

    ISO- Ω measurement up to 3 G Ω with manual range selection í Set the rotary switch (6) to one of the three „ISO- Ω “ posi- í Press the measurement pushbutton (8) in the probe (9) tions. Depending upon the nominal voltage of the device and hold it at this position.

  • Page 15: Evaluation Of The Measured Values

    Example Evaluation of the measured values You measure an insulation resistance of 179.3 k Ω on the So that the limits of the insulation resistance required by 300 M Ω measuring range at a nominal voltage of 1000 V. DIN VDE specifications are not fallen below under any con- The following is shown on the LCD display (5): dition, the measuring error of the insulation tester must be considered.
  • Page 16 Minimum display values of insulation resistances (on the nominal range of use) at specified limits Range 300 k Ω Range 3 M Ω Range 30 M Ω Range 300 M Ω Min. display value (k Ω ) Min. display value (M Ω ) Min.

  • Page 17: Iso- Ω Measurement Up To 30 G Ω

    ISO- Ω measurement up to 30 G Ω Measuring low-ohmic resistances (0 ... 30 Ω ) You can measure insulation resistances on the 30 G Ω Measuring with automatic polarity reversal measuring range only at a nominal voltage of 500 V or 1000 V and after manual range selection.

  • Page 18: Measuring With Manual Polarity Reversal

    to „–“ in line with the imprinted polarity symbols on the Measuring with manual polarity reversal front of the tester. Display of the left arrow signals the í Briefly press the „ Ω→ “ pushbutton (3) or the „ Ω← “ push- ongoing measurement with opposite direction of the cur- button (4).

  • Page 19: Finding The Max. Display Values Regarding The Maximum Service Error

    Different results obtained when measuring in both directions • Resistances that reach a stable value only after a „tran- of the current point to external voltages on the device under sient response“ should only be measured after manual test (e.g. thermovoltages or element voltages). Particularly selection of the direction of the current.

  • Page 20: Specifications

    Specifications Overload capacity Intrinsic error under Measuring Measuring Nominal range Service Resolution reference conditions Overload Overload function range of use error 2) 3) value duration ± (2.0% rdg. + 2D) ± 3.5% 1000 V 0 ... 1000 V 50 V ... 1000 1200 V continuously AC DC...
  • Page 21 Nominal Nominal/ Open-circuit Short-circuit Internal Lamp Measuring Measuring voltage Meas. voltage current resistance switching Buzzer function range current point 880 ± 50 k Ω 1000 V 0 ... 1000 V — — — — — U > 1200 V 0 ... 30 K Ω 0 ...
  • Page 22 Reference conditions +23 °C ± 2 K Temperature Influence Range of Meas. quantity/ Variation ± (... % rdg. + c) Relative quantity influence Meas. range temperature humidity 45 ... 55% 1000 V 0.5 + 2 / 10K Frequency of k Ω … 0.5 + 2 / 10K measured quantity 45 ..
  • Page 23 Voltage across the device under test with ISO- Ω measurement Measuring voltage U across the device under test as a function of its resistance R at a nominal voltage of 250 V, 500 V and 1000 V: 1000 = 250 V = 1000 V /k Ω...
  • Page 24 Ω measurement 1 Ω automatic polarity reversal Response time for „ISO- Ω “, measuring ranges up to 300 M Ω (1 measurement cycle), 25 s pause: Response time and for „ Ω “: < 1.5 s; on all other measuring 10 000 measurements with zinc-carbon, 15 000 measurements with alkaline-manganese ranges: <...

  • Page 25: Maintenance

    Temperature ranges / Climatic class Maintenance Operating temperature –10 °C + 55 °C Attention! Storage temperature –25 °C + 70 °C (without batteries) Completely disconnect the tester from all external Climatic class 2z/-10/55/70/75% with reference circuits prior to replacing batteries, bulbs or fuses! to VDI/VDE 3540 10.1 Messages on the LCD display Mechanical configuration...

  • Page 26: Batteries

    10.4 Fuse The insulation tester is fitted with a fuse type FA 0,315A / 1000 V which protects the low-ohmic measuring range against overload. When a fuse blows, the word „FUSE“ is shown on the LCD display (5) in place of the digital display (see section 10.1).

  • Page 27: Lamp In The Probe

    10.5 Lamp in the probe Repair and Replacement Part Service The probe (9) is fitted with a lens type lamp of 2.5 V/0.2 A When you need service, please contact: with an E10 cap. Replace an unserviceable bulb as follows: í...
  • Page 28 Printed in Germany • Subject to change without notice GOSSEN-METRAWATT GMBH Thomas-Mann-Str. 16-20 90471 Nürnberg, Germany Phone +49 911 8602-0 +49 911 8602-669 e-mail: info@gmc-instruments.com http://www.gmc-instruments.com...

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