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Gossen Metrawatt Profitest Intro Manual

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GMC-I Messtechnik GmbH 5
Table of Contents Page Page
1 Scope of Delivery ..............................................................5
2 Application ........................................................................5
2.1 Using Cable Sets and Test Probes .............................................. 6
2.2 Overview of Included Features .................................................. 6
3 Safety Features and Precautions ..................................... 6
4 Initial Start-Up ..................................................................7
4.1 Installing or Replacing the Battery Pack ..................................... 7
4.2 Switching the Instrument On/Off ................................................ 7
4.3 (Rechargeable) Battery Test ....................................................... 8
4.4 Charging the Battery Pack in the Tester ..................................... 8
4.5 Device Settings ........................................................................... 9
5 General Notes ................................................................. 12
5.1 Connecting the Instrument ....................................................... 12
5.2 Automatic Settings, Monitoring and Shut-Off ........................... 12
5.3 Measurement Value Display and Memory ................................ 13
5.4 Testing Earthing Contact Sockets for Correct Connection ........ 13
5.5 Help Function ............................................................................ 14
5.6 Setting Parameters or Limit Values using RCD Measurement
as an Example .......................................................................... 14
5.7 Freely Selectable Parameter Settings or Limit Values .............. 15
5.8 2-Pole Measurement with Fast or Semiautomatic Polarity
Reversal .................................................................................... 15
6 Measuring Voltage and Frequency ................................. 16
6.1 Single-Phase Measurement ...................................................... 16
6.1.1 Voltage Between L and N (UL-N),
L and PE
(UL-PE)
a
nd N and PE
(UN-PE) with Country-Specific Measuring Adapter, e.g.
SCHUKO ..................................................................................... 16
6.1.2 Voltage Between L – PE, N – PE and L – L
with 2-Pole Connection ............................................................... 16
6.2 3-Phase Measurement (line-to-line voltage) and Phase
Sequence .................................................................................. 17
7
Testing RCDs .......................................................................17
7.1 Measuring Touch Voltage (with reference to nominal residual
current) with 1/3 Nominal Residual Current and Tripping Test
with Nominal Residual Current ................................................. 18
7.2
Special Tests for Systems and RCDs ..............................................20
7.2.1 Testing Systems and RCCBs
with Rising Residual Current (AC)
for Type AC, A/F, B/B+ and EV, MI RCDs ...................................... 20
7.2.2 Testing Systems and RCCBs with Rising Residual Current (AC)
for Type B/B+ and EV, MI RCDs ................................................... 20
7.2.3 Testing RCCBS with 5 • IΔN ............................................................. 21
7.2.4 Testing of RCCBs
Pulsating DC Residual Current ..................................................... 21
7.3 Testing of Special RCDs ............................................................ 22
7.3.1 Systems with Type RCD-S Selective RCCBs .................................. 22
7.3.2 PRCDs with Non-Linear Type PRCD-K Elements ............................ 22
7.3.3 SRCD, PRCD-S (SCHUKOMAT, SIDOS or comparable) ................... 23
7.3.4 Type G or R RCCB ....................................................................... 24
7.4
Testing Residual Current Circuit Breakers in TN-S Systems ....................... 24
8 Testing of Breaking Requirements for
Overcurrent Protective Devices,
Measurement of Loop Impedance and Determination of
Short-Circuit Current (functions ZL-PE and IK) ............... 25
8.1 Measurements with Suppression of RCD Tripping ................... 26
8.1.1
Measurement with Positive Half-Waves ........................................................... 26
8.2 Evaluation of Measured Values ................................................. 26
8.3 Settings for Calculating Short-Circuit Current –
Parameter IK ............................................................................ 27
9 Measuring Line Impedance (ZL-N function) ....................27
10 Earthing Resistance Measurement (RE function) ...........29
10.1
Earth Resistance, Mains Operation – 2-Pole Measurement with
KS-PROFITEST INTRO or Country-Specific Measuring Adapter
(Schuko) ........................................................................................ 30
11
Measurement of Insulation Resistance ............................... 32
11.1 General ..................................................................................... 32
11.2 Special Case: Earth Leakage Resistance (REINS) ..................... 34
12
Measuring Low-Value Resistance up to 200 Ohm
(protective
conductor and equipotential bonding conductor) ............... 35
12.1 Measurement with Constant Test Current ................................ 36
13 Special Functions – EXTRA Switch Position ...................37
13.1 Voltage Drop Measurement (at ZLN) – Function ΔU ................. 37
14 Database .........................................................................38
14.1 Creating Distributor Structures, General .................................. 38
14.2 Transferring Distributor Structures .......................................... 38
14.3 Creating a Distributor Structure in the Test Instrument ........... 38
14.3.1 Creating Structures (example for electrical circuit) ......................... 39
14.3.2 Searching for Structure Elements ................................................. 40
14.4 Saving Data and Generating Reports ........................................ 41
14.4.1 Use of Barcode Scanners and RFID Readers ................................. 42
15 Attaching the Test Probe Holder to the
Carrying Strap .................................................................42
16 LED Indications, Mains Connections and Potential
Differences .....................................................................43
17 Characteristic Values .....................................................50
17.1 Technical Data for Measurement Cables and Adapters ........... 52
18 Maintenance ...................................................................52
18.1 Firmware Revision and Calibration Information ....................... 52
18.2 Rechargeable Battery Operation and Charging ........................ 52
18.2.1
Charging Procedure with the Z502R Charger ............................................52
18.3 Fuses ........................................................................................ 53
18.4 Housing ..................................................................................... 53
19 Appendix .........................................................................54
19.1 Tables for Determining Maximum or Minimum Display
Values in Consideration of Maximum Measuring Uncertainty .. 54
19.2 At which values should/must an RCD actually be tripped?
Requirements for Residual Current Devices (RCDs) ................. 56
19.3 Periodic Testing per DGUV Regulations 3 (formerly BGV A3) –
Limit Values for Electrical Systems and Operating Equipment 57
19.4 Optional Accessories (not included) ......................................... 57
19.5 List of Abbreviations and their Meanings ................................. 58
19.6 Keyword Index .......................................................................... 59
19.7 Bibliography .............................................................................. 60
19.7.1 Internet Addresses for Additional Information ............................... 60
20 Repair and Replacement Parts Service
Calibration Center* and Rental Instrument Service ........61
21 Recalibration ..................................................................61
22 Product Support ..............................................................61
… 5 …


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