Operating Instructions METRAHIT2+ Universal TRMS Multimeter 3-349-476-02 5/10.
1 3 4 5 6 1 18 7 17 8 16 2 9 15 3 4 14 13 12 11 10 5 6 7 Symbols used in the Digital Display 1 MAN: manual measuring range selection is active 2 MIN/MAX value storage 3 HOLD: display memory, “freeze” measured value 4 Digital display with decimal point and polarity display 5 Diode measurement selected 6 Max.
Table of Contents Page 1 Safety Features and Precautions ...............................3 2 Initial Start-Up ............................................................5 3 Selecting Measuring Functions and Measuring Ranges ..................................................... 5 3.1 3.2 3.3 3.4 Automatic Measuring Range Selection ..................................... 5 Manual Measuring Range Selection ......................................... 5 Quick Measurements .....................................
• Measurements under moist ambient conditions are not permitted. Be absolutely certain that the measuring ranges are not overloaded beyond their allowable capacities. Limit values can be found in the “Measuring Ranges” table in chapter 12 “Characteristic Values”. All current measuring ranges are protected with fuses. Maximum allowable voltage for the measuring current circuit is 600 V in all “mA” and “A” ranges.
2 Initial Start-Up Battery Your instrument is supplied with two 1,5 V AA size batteries in accordance with IEC LR 6, and is ready for operation. Be sure to refer to chapter 13.1 “Battery”, before initial start-up, or after your device has been in storage for a lengthy period of time. Switching the Instrument On ➭ Press the ON / OFF key. Power-up is acknowledged with an acoustic signal. All of the segments at the liquid crystal display (LCD) are illuminated shortly.
3.4 Relative Measurement REL A reference value for relative measurements can be stored to memory with the keys MAN / AUTO and HOLD. The applicable reference or correction value is substracted individually for the respective measuring function as an offset from all subsequent measurements, and remains in memory until deleted, or until the multimeter is switched off. Reference value setting is only possible for the respective manually selected measuring range.
Voltage Measurement ➭ Depending upon the voltage to be measured, set the rotary selector switch to V or V . Connect the measurement cables as shown. The “” connector jack should be grounded. ➭ Note! The 600 mV measuring range can only be selected manually with the MAN / AUTO key. If the measured value exceeds 60 V DC or 40 V AC the symbol appears at the display.
7.2 Voltage Measurements at Above 600 V Voltages of greater than 600 V can be measured with a highvoltage probe, e.g. the HV31) or the HV302) from GMC-I Messtechnik GmbH. It is absolutely essential to ground the bonding terminal. Observe all applicable safety precautions! red black FUNC x100 brief black 1) 2) HV3: 3 kV HV30: 30 kV, for DC ➭ ➭ ➭ ➭ 8 A DC AC~ 00.00 A DC ...
00.00 mA ... 60 mA 000.0 ... 600 mA FUNC brief mA DC AC~ mA DC AC~ DC AC~ 1x acoustic signal AC ~ DC Measuring Range: mA: 60 mA 600,0 mA • • connector jacks.The following symbol appears at the digital display in this case: . If a fuse blows, eliminate the cause of overload before placing the instrument back into service! Refer to chapter 13 “Maintenance”, regarding fuse replacement.
8.1 Measuring Alternating Current with (Clip-On) Current Transformers 8.1.1 Transformer Output mA / A ! Attention! If current transformers are operated without being connected at the secondary side (e.g. as a result of defective or missing cables, a blown device fuse or incorrect connection), dangerously high voltages may occur at the connector jacks.
10 ➭ ➭ ➭ Continuity and Diode Testing Make sure that the device under test is voltage-free. Interference voltages distort measurement results! Set the rotary selector switch to . Connect the device under test as shown. 0.000 FUNC brief 030.
11 Temperature Measurement The multimeter provides for the measurement of temperatures within a range of – 50°C to + 400°C with the help of a type K temperature sensor. ➭ Set the rotary selector switch to „°C“. ➭ Connect the sensor to the two accessible jacks. The device indicates the measured temperature in C at the digital display. ➭ Briefly press the FUNC key to switch between C and F.
12 Characteristic Values Resolution Meas. Function Measuring Range V 600 mV 6 V 60 V 600 V 6000 100 V 1 mV 10 mV 100 mV A 60 mA 600 mA 6 A 10 A 10 100 1 10 Input Impedance Intrinsic Error at Max. Resolution under Reference Conditions (... % rdg. + ... d) (... % rdg. + ... d) 5) >10 G // < 40 pF 40 M // < 40 pF 11 M // < 40 pF 8 M // < 40 pF 10 M // < 40 pF 8 M // < 40 pF 10 M // < 40 pF 8 M // < 40 pF Voltage drop at approx. range limit 0.5 + 5 0.5 + 5 0.5 + 5 0.5 + 5 1+5 1.
Influencing Quantities and Influence Error Influencing Measured Quantity / Influence Error 1) Quantity Sphere of Influence Measuring Range (... % rdg. + ... digits) 600 mV 1.0 + 3 6 ... 600 V 0.15 + 1 V 0.4 + 2 60 mA ... 600 mA Temperature 0 C ... +21 C and +25 C... +40 C 0.5 + 1 A 0.75 + 1 0 2) 0.15 + 2 600 0.25 + 2 6 k ... 6 M 0.15 + 1 40 M 1.0 + 1 – 50 ... + 200 C 1K+2 + 200 ... + 400 C 1+2 A > 65 Hz ...
Polarity display Measuring rate Power Supply Battery Service life Battery test Electrical Safety Safety class Overvoltage category Nominal voltage Fouling factor Test voltage “–” sign is displayed if plus pole is connected to “” 2 measurements per second 2 x 1.5 V AA size batteries alkaline manganese per IEC LR6 or equivalent rechargeable NiCd battery With alkaline manganese: approx. 750 hours for V , A approx. 200 hours for V , A is displayed automatically if battery voltage drops to below approx.
13 Maintenance ! Attention! Disconnect the instrument from the measuring circuit before opening to replace batteries or fuses! 13.1 Battery Make sure that no battery leakage has occurred before initial start-up, and after long periods of storage. Continue to inspect the batteries for leakage at short, regular intervals. If battery leakage has occurred, carefully and completely clean the electrolyte from the instrument with a damp cloth, and replace the batteries before using the instrument.
14 Repair and Replacement Parts Service, Calibration Center* and Rental Instrument Service If required please contact: GMC-I Service GmbH Service Center Thomas-Mann-Str. 16-20 90471 Nürnberg • Germany Phone +49 911 817718-0 Fax +49 911 817718-253 e-mail service@gmc-instruments.com This address is only valid in Germany. Please contact our representatives or subsidiaries for service in other countries.
Edited in Germany • Subject to change without notice • A pdf version is available on the Internet. GMC-I Messtechnik GmbH Südwestpark 15 90449 Nürnberg • Germany Phone +49 911 8602-111 Fax +49 911 8602-777 E-Mail info@gossenmetrawatt.com www.gossenmetrawatt.
