Table of Contents
Related Manuals for Gossen MetraWatt METRA HIT 27M
Summary of Contents for Gossen MetraWatt METRA HIT 27M
- Page 1 Operating Instructions METRAHIT⏐27 and METRAHIT⏐H+E METRA HIT 27M: Digital Multimeter and Milliohmmeter METRA HIT 27I: Digital Multimeter, Milliohmmeter and Megohmmeter 3-349-207-02 METRA HIT H+E : Mega Tester for Hybrid E-cars 12/4.16...
- Page 2 Symbols used in the Digital Display Main display with decimal point and polarity display Auxiliary display with decimal point and polarity display : Multimeter in continuous operation, ON blinks at transmission frequency in transmission mode REM: Memory mode operation, disappears after communication via the interface is ended by means of key or switch operation ZERO: Zero balancing MAN: Manual measuring range selection...
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Page 3: Table Of Contents
Table of Contents Page Page Safety Features and Precautions .......4 Using the Menus – from the Initial InFO Menu to Operating and Measuring Parameters ..... 17 Initial Start-Up ............5 12.1 Sampling rAtE ............17 12.2 Saving Measured Values ............17 Selecting Measuring Functions and Measuring Ranges ..6 12.2.1Memory Mode –... -
Page 4: Safety Features And Precautions
Safety Features and Precautions • Make certain that the measurement cables are in flawless condition, e.g. no damage to insulation, no interruptions You have selected an instrument which provides you with in cables or plugs etc. high levels of safety. •... -
Page 5: Initial Start-Up
Meanings of symbols on the instrument: Initial Start-Up Storage Batteries or Batteries Warning concerning a source of danger Refer to chapter 14.1 regarding correct storage battery or (attention: observe documentation!) battery installation. Ground Warning! The mains power battery charger may not be Mains power battery charger connection for connected if normal batteries (which are not suited for recharging storage batteries... -
Page 6: Selecting Measuring Functions And Measuring Ranges
Setting Time and Date Selecting Measuring Functions and Measuring Ranges See chapter 12 on page 17. Automatic Measuring Range Selection Switching the Instrument Off Manually The multimeter is equipped with auto-ranging for all Ð Press and hold the ON|OFF key until OFF appears at the measuring ranges, except for temperature measurement, and display. -
Page 7: Quick Measurements
Quick Measurements Triple Digital Display If you wish to perform quicker measurements than those pos- The three digital displays (1 main display and 2 auxiliary sible with the automatic measuring range selection function, displays) show the measured value with decimal and plus or make sure to establish the appropriate measuring range: minus sign. -
Page 8: Measured Value Storage
Measured Value Storage The METRA HIT27 provides two entirely different options for storing data: 30.000 • Measured Value Memory – DATA Key Function: DATA Each time a measuring point is contacted, a measured value is stored in accordance with a defined condition 20. -
Page 9: Saving Minimum And Maximum Values "Min/Max" With Time Stamp
Saving Minimum and Maximum Values “MIN/MAX” with Time Stamp 30.000 Minimum and maximum values can be displayed at the auxiliary displays for long-term observation of measured quantities. Ð Press the DATA|CLEAR key twice: Current MIN and MAX values appear at the auxiliary displays. Automatic range selection is disabled as long as the DATA Current Measured Value... -
Page 10: Voltage And Frequency Measurement
Voltage and Frequency Measurement 7.1.1 Zero Balancing in the 3 V DC Measuring Range Ð Select the 3 V measuring range. Ð Plug the measuring cables into the instrument and connect the free ends to each other. 226.000 Ð Press the FUNC key. The instrument acknowledges zero balancing with an acoustic signal, and „0.0000 V“... -
Page 11: Frequency Measurement [Hz]
Frequency Measurement [Hz] Resistance Measurement (2-wire connection) [Ω] Ð Ð Select the V~/Hz measuring function with the rotary Make sure that the device under test is voltage-free (see selector switch. chapter 7.1). Interference voltages distort measurement results and damage the instrument! Ð... -
Page 12: Continuity Test During Resistance Measurement
Continuity Test during Resistance Measurement Diode Measurements If the “acoustic signal ” function is activated and the Ð Make sure that the device under test is voltage-free (see 0 ... 310 Ω measuring range is selected, a continuous chapter 7.1). Interference voltages distort measurement acoustic signal is generated by the instrument within a range results! of 0 to approx. -
Page 13: Milliohm Measurement (4-Pole-Measurement)
Milliohm Measurement (4-Pole-Measurement) Compensation of Cable Resistance 01.180 Electrical resistance is a dipole quantity which can generally mΩ only be measured using two poles. This is accomplished by m Ω directing a measuring current of predetermined magnitude through the device under test, and measuring the resultant voltage drop. -
Page 14: Milliohm Measurement With 200 Ma Or 20 Ma Dc [Mω]
Milliohm Measurement with 200 mA or 20 mA DC [mΩ] Temperature Measurement [°C] Ð Make sure that the device under test is voltage-free (see Resistance thermometers (available as accessories) are used chapter 7.1). Interference voltages distort measurement for temperature measurement. A 2-pole measurement is utilized. -
Page 15: (Metra Hit 27I And Metra Hit H+Ecar Only)
Insulation Resistance Measurement [MΩ@...V] (METRA HIT 27I and METRA HIT H+E only) Measuring Range: mΩ VΩ°C S– see chapter 14 - - - - - MΩ -000 250 V 50 ... 500V Selected Test Voltage Continuous Measurement Displays test voltage FUNC FUNC as long as key is depressed... -
Page 16: Insulation Resistance Measurement [Mω
11.2 Insulation Resistance Measurement Note! Ð Press and hold the FUNC key until the display settles in, in Testing the Measurement Cables order to measure insulation resistance. Initial testing should be performed by short-circuiting the measurement cables using their test probes. The Attention! instrument must display nearly 0 Ω. -
Page 17: Using The Menus - From The Initial Info Menu To Operating And Measuring Parameters
Using the Menus – from the Initial InFO Menu to 12.2 Saving Measured Values Operating and Measuring Parameters The METRA HIT27 provides two entirely different options for storing data: Menu-driven operation via the initial „1NF0“ menu allows the user to query online help, activate the memory and query •... -
Page 18: 2Memory Mode Operation - Store Menu Function
12.3 Querying Memory Occupancy – INFO MEMO/OCCUP 12.2.2 Memory Mode Operation – STORE Menu Function Ð Memory occupancy can be queried from the „1NF0“ menu. First set the sampling rate for memory mode operation, The main display shows current occupancy as a percentage and then start memory mode operation. -
Page 19: Transmission Mode Operation With Rs 232 Interface
12.6 Transmission Mode Operation with RS 232 Interface The METRA HIT27 is equipped with an bidirectional infrared interface for the transmission of measurement data to a PC. Data are transferred optically through the instrument housing by means of infrared light to an interface adapter (accessory USB-HIT), which is attached to the instrument. - Page 20 Main Menus and Submenus Query Information FUNC 1nf0 3. 9 8 01 t im e d a t e t C a l t a d J ↵ batt mem0 oCCUp 1508.
- Page 21 SEt Submenu for rAtE, Addr, dAtE and tIME Parameters Continued from previous page Set Sampling Rate (see also chapter 12.1) Change Acknowledge rate 00:10:00 rate Value Sampling Rate Possible Settings (hh:mm:ss, h = hours, m = minutes, s = seconds) 00:00:01, 00:00:02, 00:00:05, 00:00:10, 00:00:20, 00:01:00 00:02:00, 00:05:00, 00:10:00, 00:20:00, 01:00:00;...
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Page 22: Characteristic Values
Characteristic Values Intrinsic Uncertainty at Max. Resolution Resolution at Upper Overload Capacity under Reference Conditions Input Impedance Measuring Range Limit Measuring Range ±(...% rdg. + ... d) ±(...% rdg. + ... d) Function 4¾ 30000 / 3¾ 3000 Value Time μV 2.1 MΩ... - Page 23 Influencing Quantities and Influence Error Reference Conditions Ambient +23° C ±2 K temperature Influencing Sphere of Measured Quantity / Influence Error ± (... % rdg. + d)/10 K Quantity Influence Measuring Range Relative humidity, 40 ... 60% V DC 0.1 + 5 Measured quantity frequency 45 ...
- Page 24 Power Supply Electromagnetic Compatibility (EMC) Storage batteries 3 ea. 1.2 V NiMH storage batteries Interference emission EN 61326-1:2006 class B (AA size) (≥ 2100 mAh) Interference immunity EN 61326-1:2006 Service life with set of 2100 mAh NiMH storage batteries EN 61326-2-1:2006 Measuring Current Service Life [h]...
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Page 25: Maintenance
Maintenance Recharging the Storage Batteries Use only the NA HIT 27 mains power battery charger (article number Z218J) from GMC-I Messtechnik GmbH to recharge Attention! the storage batteries in the instrument. This assures operator Disconnect the instrument from the measuring circuit safety by means of an extremely well insulated cable, and before opening to replace storage batteries, batteries safe electrical isolation (nominal secondary ratings: 5 V/... -
Page 26: Fuses
14.2 Fuses 14.4 Device Return and Environmentally Compatible Disposal The fuse is located at the measuring input. When the fuse is The METRA HIT27 is a category 9 product (monitoring and defective, the measurements in the mΩ/Ω/ ranges are control instrument) in accordance with ElektroG (German faulty. -
Page 27: Accessories
Accessories Repair and Replacement Parts Service, Calibration Center* and Rental Instrument Service The BD232 interface adapter (without memory) allows for remote control of the instrument, as well as transmission of If required please contact: measurement data from up to six multimeters to a PC (in the online operating mode with METRAwin10). -
Page 28: Guarantee
Guarantee Recalibration The guarantee period for all METRA HIT measuring and The respective measuring task and the stress to which your calibration instruments is 3 years after date of shipment. measuring instrument is subjected affect the ageing of the components and may result in deviations from the Calibration is guaranteed for a period of 12 months.
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