Gossen MetraWatt INTRO Operating Instructions Manual

Insulation, low resistance and voltage measurement instrument

Hide thumbs

Table Of Contents

Quick Links

Download this manual

Operating Instructions

METRISO INTRO, BASE,

TECH

3-349-812-03

Insulation, Low Resistance and Voltage Measurement Instrument

3/12.15

Table of Contents

Need help?

Do you have a question about the INTRO and is the answer not in the manual?

Questions and answers

Summary of Contents for Gossen MetraWatt INTRO

Page 1 Operating Instructions METRISO INTRO, BASE, TECH 3-349-812-03 Insulation, Low Resistance and Voltage Measurement Instrument 3/12.15...
Page 2 BASE TECH 1 DAkkS calibration certificate (not METRISO INTRO) Article number M550N M550O M550P 1 Set batteries (8 ea. in battery holder) (not METRISO INTRO) Measurements 1 Carrying strap ✓ ✓ U = 1000 V — 1 Alligator clip (not METRISO INTRO) ✓...
Page 3 Shielded Cable, Compartment Option KS-C (Z541F) Contact Spring * not METRISO INTRO Z550A accessory as option: Test probe with a key for triggering measurement, and User Interface an additional key for illuminating the measuring point, including shielded plug-in connector cable...
Page 4 LCD panel – Test/Measuring voltage with device switched on – V: voltage type selection state – Discharge voltage for Riso/Rins – Rlo: polarity reversal * not METRISO INTRO Rlo>10% STORE Start measurement Function Parameters transfer selector switch Continuous...
Page 5 Digital Display Symbols Battery level indicator 2 Digital display with decimal point and polarity display 3 MAN: Low-resistance measurement: manual measuring range selection active 4 Rlo: Low-resistance measurement: Rlo>10% special case for automatic low-resistance measure ment with measurement in both directions of current flow: both measured values are displayed where ΔRlo >...
Page 6: Table Of Contents
Contents Page Contents Page Applications ................7 Insulation Measuring Instrument ..........23 Safety Features and Precautions ..........8 Characteristic Values .............. 24 Initial Start-Up ................9 List of Abbreviations and their Meanings ........28 3.1 Battery test ..................9 Maintenance ................28 3.2 Installing or Replacing Batteries .............9 12.1 Battery and Rechargeable Battery Operation ........28 3.3 Query and Set Device Parameters –...
Page 7: Applications
• Initial start-up Messtechnik GmbH. • Periodic testing METRISO INTRO/BASE/TECH insulation and resistance measur- ing instruments allow for quick and efficient testing of protective • Troubleshooting in electrical systems measures in accordance with DIN VDE 0100, ÖVE-EN 1 (Austria), NIV/NIN SEV 1000 (Switzerland), and regulations specific to addi- The following measurements and tests can be performed with the tional countries.
Page 8: Safety Features And Precautions
Follow all instructions contained therein. CAT II/ II I Device assigned to measuring categories METRISO INTRO/TECH: The measuring and test instrument may not be placed into ser- CAT II 1000 V / CAT III 600 V / CAT IV 300 V...
Page 9: Initial Start-Up
Initial Start-Up Attention! Battery test Make sure that all of the batteries are inserted with correct Four different battery symbols, ranging from fully depleted to fully polarity. If just one battery is inserted with reversed polar- charged, continuously indicate the momentary charge level in the ity, it will not be recognized by the instrument and may upper left-hand corner of the display result in leakage from the batteries.
Page 10: Query And Set Device Parameters - Setup Function
Query and Set Device Parameters 3.3.1 Paths to the Various Parameters – SETUP Function 1nFo ← Main Menus → info START START ENTER stby OFF ENTER stby OFF SETUP Query Parameter ↓ Set Parameter ↓ Ð Turn the rotary switch to the SETUP position. bAtt: rlead info appears at the display.
Page 11: Querying Parameters - Info Menu (As Moving Letters)
List of all parameters (alphabetical order) 3.3.3 Entering Parameters – SEt Menu Parame- Page: Header rLEAd – Offset Resistance for Low-Resistance Measurement d iSP Measurement cable ohmic resistance can be subtracted from the 13: 0.diSP – Show/Hide Leading Zeros measurement results automatically. Offset must be determined d iSP 12: A.diSP –...
Page 12 APoFF – Specified Time for Automatic Shutdown and Continuous ON bEEP – Acoustic Indication of Exceeded Limit Values Shutdown time APoFF can be specified with this parameter. The This parameter allows you to decide whether or not exceeded instrument is switched off automatically if the measured value limit values will be indicated acoustically.
Page 13: 3.3.4 Default Settings
3.3.4 Default Settings 0.diSP – Show/Hide Leading Zeros Previously entered changes can be undone, and default settings This parameter determines whether or not leading zeros will can be restored. This may be advisable under the following cir- appear in the measured value display. cumstances: •...
Page 14: General Operation
General Operation The instrument can be switched off manually by turning the rotary switch to the OFF position. The test leads are connected to the “+” and “COM” jacks. Optical Indicators Status Function – Cause Measuring High-Value Resistance with the KS-C Probe (Option) Limit value indication When measuring electrostatic –...
Page 15: Measured Value Display
If the lower range limit is fallen short of, ur appears at the display, Limit Values for Insulation and Low-Resistance Measurements thus indicating underranging. METRISO INTRO BASE TECH Limit (M550N) (M550O) (M550P)
Page 16: Measuring Insulation Resistance - Riso/Rins Function
Measuring Insulation Resistance – Riso/Rins Function Connection Note Checking the Measurement Cables Before performing insulation measurement, the test probes on the measurement cables should be short-cir- cuited in order to assure that the instrument displays a COM SHIELD value very close to 0 Ω (see section 8). This makes it pos- sible to detect interrupted measurement cables, which simulate high insulation resistance.
Page 17: Ending The Measurement
Ending the Measurement Individual measurement: Measurement is ended automatically as soon as the measured value has settled in. ISO/INS Continuous measurement is ended by briefly pressing the ESC key. In either case, the measured value is retained at the 7-segment display.
Page 18: Measuring Direct, Alternating And Pulsating Voltage - V Function
Measuring Direct, Alternating and Pulsating Voltage – V Function You can measure direct voltage, as well as sinusoidal alternating voltage with frequencies ranging from 45 to 65 Hz with this test Max. instrument. 1.2 kV Ð Select the V measuring function with the rotary switch. COM SHIELD Ð...
Page 19: Measuring Resistance - Kω/Ω Function (Metriso Base/Tech)
Measuring Resistance – kΩ/Ω Function (METRISO BASE/TECH) Ð Connect the device under test to the + and COM jacks. Resistance can only be measured at voltage-free objects. If mains voltage or external voltage is applied to the measurement inputs, kΩ measurement cannot be started.
Page 20: Measuring Low-Value Resistance (Up To 10 Ohm) - Rlo Function
Measuring Low-Value Resistance (up to 10 Ohm) R < 10 Ω – R Function According to the regulations, the measurement of low-value resis- tance at protective conductors, earth conductors or equipotential bonding must be performed with (automatic) polarity reversal of the test voltage, or with current flow in one or the other direction.
Page 21: Measurement With Automatic Polarity Reversal - Auto Function
Measurement Types lead to varying and/or inflated measurement values, and thus to an ambiguous reading. You can choose one of two different types of measurement: • Measuring sequence with automatic polarity reversal (reversal < Limit R of current flow direction) Limit •...
Page 22: Measurement With Manual Polarity Reversal - Man Function
Measurement with Manual Polarity Reversal – MAN Function MAN: Rlo Ω→ In order to determine whether or not the obtained results are inde- MAN: Rlo ←Ω pendent of current flow direction, measurement can be per- formed separately for both directions. Ð...
Page 23: Taking Measurement Cables And Extension Cables Into Account (Up To 10 Ohm) - Zero Function (Roffset)
Taking Measurement Cables and Extension Cables into Test Resistor for Insulation Measurement for Account (up to 10 Ohm) – ZERO Function (Roffset) Checking the Insulation Measuring Instrument Measurement cable ohmic resistance can be subtracted from the measurement results automatically. Proceed as follows: According to section 5.3.1.2 of VDE 0105-100 (EN 50110-1), the Ð...
Page 24: Characteristic Values
100 M 10.0 MΩ ... 99.9 MΩ 100 k RINS 250 V / 100 MΩ ... 999 MΩ ≤ 5 mA 500 V / METRISO INTRO 10 G 1.00 GΩ ... 9.99 GΩ 10 M 1000 V: METRISO TECH: 1.1 U TRMS ±(8% rdg.
Page 25 Pollution degree * Specified time “APoFF” (entered in minutes) Measuring category METRISO INTRO/TECH: adjustable via SETUP menu (default setting CAT II 1000 V / CAT III 600 V / CAT IV 300 V approx. 10 min).
Page 26 Electromagnetic Compatibility (EMC) Displays Interference emission EN 61326-1:2006 class B Digital display With additional bar graph or pointer depending on selection with a.disp Interference immunity EN 61326-1:2006 parameter, backlit (transflective); leading zeros can be suppressed at the Ambient Conditions digital display depending on 0.disp Accuracy parameter;...
Page 27 Display Values in Consideration of Measuring Uncertainty Voltage at Device Under Test During Insulation Resistance Measurement Table for determining minimum display values for insulation resis- tance in consideration of the instrument’s measuring uncertainty. Measuring voltage U at the device under test depending upon its resistance R at nominal voltage U = 100, 250, 500 and 1000 V:...
Page 28: List Of Abbreviations And Their Meanings
List of Abbreviations and their Meanings Voltage Test voltage or nominal voltage = 500V U AC/DC Measured voltage (sinusoidal alternating voltage) Resistance LIMIT Limit value for insulation resistance or low-value resis- /kΩ tance Offset Correction value for measurement cable resistance Insulation resistance Low-value resistance (cable resistance) 1000...
Page 29: Fuses
Checking the Fuse Note If a resistance measuring range is selected with the rotary switch Prior to lengthy periods of rest (e. g. holiday), we recom- with a blown or defective fuse in the instrument, and if the instru- mend removing the (rechargeable) batteries. This helps to ment is turned on with the switch in this position, fuse appears at prevent excessive depletion or leakage of batteries, the LCD.
Page 30: 2Electronic Fuse
12.2.2 Electronic Fuse They symbol shown to the right indicates that batteries or rechargeable batteries may not be disposed of with the This fuse protects low-resistance (Rlo) and resistance measure- trash, but must be delivered to collection points specially ments (kΩ) from overloading (electronic hardware circuit). Pb Cd Hg provided for this purpose.
Page 31: Appendix
Appendix Between each active conductor (phase and neutral 14.1 Sample Connection Layouts for Insulation Resistance conductors) and ground Measurement Insulation Resistance Measurement per DIN VDE 0100, Part 600 Between each active conductor and ground Between each active conductor and the PEN conductor Between each active conductor and the PEN conductor GMC-I Messtechnik GmbH...
Page 32 Insulation Resistance Measurement in Different Types of Systems TN–S • With or without consumer • With or without consumer • N – PE, separately 3-phase current (switched at all poles) TN–C • With or without consumer • N – PE, together GMC-I Messtechnik GmbH...
Page 33 Caution: – Open the overcurrent protective device – Disconnect the N conductor – Jumper the L and N conductors – Insulation measurement between L conductors and N to PE – Device switch can be open – if single-pole In the distributor: individual and combined measurements GMC-I Messtechnik GmbH...
Page 34: Attaching The Strap To The Test Instrument
14.2 Attaching the strap to the test instrument Feed the strap through from the front Slide the strap through the test probe holder. of the test instrument and secure it with the slotted screw (M3). Front View Side View Strap Clasp Front Back...
Page 35: Technical Data For Measurement Cables
14.4 Technical Data for Measurement Cables (scope of delivery: KS17-4 safety cable set) Feed the strap through from the front of the test instrument and secure it Electrical Safety with the slotted screw (M3). Maximum rated voltage 600 V 1000 V 1000 V Measuring category CAT IV...
Page 36: Optional Accessories (Not Included)
14.5 Optional Accessories (not included) Test Probe for Remote Triggering (material no. Z550A) ISO Calibrator 1 (material no. M662A) Optional plug-on measurement cable with a triggering Calibration adapter for testing the accuracy of instru- key on the test probe and an additional key for illumi- ments used for measuring insulation resistance and nating the measuring point, including shielded, plug-in low-resistance for test voltages up to 1000 V (per VDE...
Page 37: Repair And Replacement Parts Service Calibration Center And Rental Instrument Service
Repair and Replacement Parts Service Competent Partner Calibration Center* and Rental Instrument Service GMC-I Messtechnik GmbH is certified in accordance with DIN EN ISO 9001:2008. If required please contact: Our DAkkS calibration laboratory is accredited by the Deutsche Akkreditierungsstelle GmbH (National accreditation body for the Republic of Germany) in accordance with DIN EN ISO/ GMC-I Service GmbH IEC 17025:2005 under registration number D-K-15080-01-01.
Page 38 GMC-I Messtechnik GmbH...
Page 39 GMC-I Messtechnik GmbH...
Page 40 Edited in Germany • Subject to change without notice • PDF version available on the Internet Phone: +49 911 8602-111 GMC-I Messtechnik GmbH Fax: +49 911 8602-777 Südwestpark 15 e-mail: info@gossenmetrawatt.com 90449 Nürnberg, Germany www.gossenmetrawatt.com...

This manual is also suitable for:

Base Tech M550n M550o M550p M551p