Operating Instructions MINITEST⏐MASTER⏐PRO⏐BASE Testers per DIN VDE 0701-0702 3-349-358-15 8/5.
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MINITEST 3P Master MINITEST Master MINITEST Pro MINITEST Base ✘ ✘ ✘ ✘ Tests on 3-phase DUTs via additional test sockets CEE 16A / CEE 32A ✘ – – – ✘ ✘ ✘ ✘ ✘ – – – Connection types Fusing devices Fuse for probe connection ✘ RCCB in mains plug – Miniature circuit breaker ✘ Report functions Illuminated two-line LCD * ✘ ✘ ✘ – Memory for 2,000 tests (10 measured values per test) ✘ ✘ – – Key for transmission of measured values ✘ ✘ ✘ – Key for storing measured values ✘ ✘ ✘
Table of Contents 1 1 Applications ...............................................4 2 Safety Features and Precautions .......................4 3 Initial Start-Up ............................................6 4 Test Sequence ...........................................6 The test instrument is used to test the electrical safety of monophase and 3-phase electrical devices.
Observe the following safety precautions: • MINITEST Master / Pro / Base: The instrument may only be connected to electrical supply systems with 230 V/ 240 V which conform to the valid safety regulations (e.g. IEC 60364, VDE 0100) and are protected with a fuse or circuit breaker with a maximum rating of 16 A. • Measurements within electrical systems are prohibited. • Be prepared for the occurrence of unexpected voltages at devices under test (for example, capacitors may be dangerously charged).
3 Initial Start-Up Connection Connect the test instrument’s mains plug to the mains power outlet. MINITEST 3P Master: The instrument can be connected to all customary CEE sockets by means of the mains connection adapter (standard equipment). Switching the MINITEST 3P Master On: The instrument is switched on via the 3-pole miniature circuit breaker (m.c.b.).
Connect DUT to mains outlet. – Switch the DUT on. Connect DUT to the test socket. Device Under Test Protective conductor resistance Probe socket PE/ IC Earth contact plug CEE plug * Safety class I All exposed parts are connected with PE Insulation resistance No probe required Insulation resistance Probe socket RISO Differential current Contact current No probe required Probe socket PE/ IC ✘ ✘ Test with the mains plug poled in both directions.
5 Descriptions of Individual Measurements 5.1 Measurements at the Test Outlet(s) Protective Conductor Resistance, RPE SOCKET The probe must be plugged into the PROBE PE/IC socket for the measurement of protective conductor resistance. Measurement is performed between the protective conductor terminal at the test outlet and the PROBE PE/IC socket. Protective Conductor Resistance, RPE FIX This measurement is used for testing the protective conductor at permanently connected devices.
Discharging the Device Under Test The device under test is automatically discharged when the insulation test is switched off (turn switch to RPE or ID). The LEDs light up rapidly, one after the other from left to right, during discharging. Furthermore, residual voltage appears at the display (not for MINITEST Base). Leave the DUT connected to the test instrument during the discharging sequence. 5.
6 Report Functions 6.1 Transmission Mode MINITEST Master MINITEST Pro Operating mode selected at the test instrument MINITEST 3P Master Depending on the selected operating mode, the measured values and the result of each test can be transmitted to a PC via USB port for onward processing or stored to the internal device memory. The transmission or storage process of measured values is indicated by all LEDs lighting briefly up from right to left.
➭ Key DATA > Menu MEASURED VALUE NO. In this switch position all measured values of a DUT are shown in a consecutive, numerical sequence in the order of their recording. ➭ Key CLR > Menu DUT DEL ? Pressing key „S“ (6) deletes the current memory location, i.e. all data for the selected DUT. As a preventive measure against accidental deletion you have to keep key „S“ (6) pressed for about half a second before the deletion process is started. The red LED lights up during the deletion.
7 Technical Data Measured Quantity Measuring Range Resolution Uno-load Protective conductor resistance 0 … 1.30 Ω 1.0 … 99.9 Ω 10 mΩ 100 mΩ <5V− <5V− Insulation resistance 0 … 9.99 MΩ 10 kΩ 520 V − Contact current measurement (verification of absence of voltage) 0 … 9.99 mA ∼ 10 μA Differential current MINITEST Master / Pro / Base 0.1 . . . 9.99 mA~ 10 μA Differential current MINITEST 3P Master * With automatic polarity reversal 0.2 . . . 9.99 mA~ 10 μA Ri IK IN > 200 mA * approx.
Reference Conditions Ambient temperature +23 °C ±2 K Relative humidity 40 ... 60% Line voltage MINITEST Master / Pro / Base: 230 V ±1% MINITEST 3P Master: 230 V/400 V ±1% Measured quantity frequency 50 Hz ±0.2% Measured quantity waveshape Sine (deviation between RMS and rectified value: ±0.5%) Ambient Conditions Operating temp. 0 to + 40 °C Storage temp. range –20 to +70 °C Humidity Max.
8 Maintenance 8.1 Housing No special maintenance is required for the housing. Keep outside surfaces clean. Use a slightly dampened cloth for cleaning. Avoid the use of cleansers, abrasives or solvents. 8.2 Replacing the Fuse Instructions on checking the zero point and fuse are given in chapter 5.1.
Note: These tests can be performed on-site with the SECU-cal 10 calibration adapter accessory. 8.4 Return and Environmentally Sound Disposal The test instrument is a category 9 product (monitoring and control instrument) in accordance with ElektroG (German electrical and electronic device law). This device is subject to the RoHS directive. Furthermore, we make reference to the fact that the current status in this regard can be accessed on the Internet at www.gossenmetrawatt.
10 Repair and Replacement Parts Service Calibration Center* and Rental Instrument Service If required please contact: GMC-I Messtechnik GmbH Service Center Thomas-Mann-Str. 20 90471 Nürnberg · Germany Phone: +49 911 817718-0 Fax: +49 911 817718-253 E-mail service@gossenmetrawatt.com www.gmci-service.com This address is only valid in Germany. Please contact our representatives or subsidiaries for service in other countries.
