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Gossen MetraWatt METRAport 40S, Operating Instructions Manual, Page: 26 / 28

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Gossen MetraWatt METRAport 40S Operating Instructions Manual Download Page 26

26 GMC-I 

Messtechnik 

GmbH

16

Maintenance

Attention!

!

Disconnect the instrument from the measuring circuit before opening to 
replace batteries or fuses!

16.1 Batteries

Make sure that no battery leakage has occurred before placing your instrument 
into service for the first time, or after long periods of storage. Repeat this 
inspection on a regular basis thereafter.
If battery leakage has occurred, clean the electrolyte from the device completely 
and carefully with a dampened cloth and install new batteries before placing the 
instrument back into service.
If the „

“ symbol appears at the display, replace the batteries as soon as 

possible. The instrument requires two 1.5 V batteries in accordance with IEC R 6 
or IEC LR 6.

Replacing the Batteries

Attention!

!

Disconnect the instrument from the measuring circuit at all poles before 
opening the battery compartment!

➭

Fold the instrument closed.

➭

Insert a coin or a similar object into the slot between the housing and the 
battery compartment cover and press down until the battery compartment 
cover snaps open.

➭

Fold the instrument open as far as it will go and remove the battery 
compartment cover.

➭

Insert two 1.5 V mignon batteries per IEC R6 or IEC LR6 into the battery 
compartment, making sure they are poled in accordance with the symbols.

➭

Replace the battery compartment cover and press into position until it 
audibly snaps into place.

➭

Please dispose of depleted batteries in an environmentally sound fashion!

16.2 Fuses

Eliminate the cause of overload after a fuse or breaker is tripped before placing 
the instrument back into service!

10 A Range

A humming sound originating from the 15 A circuit breaker is normal when 
measuring high value alternating current.
If the miniature 15 A circuit breaker for the active current measuring range is 
tripped, FUSE appears at the digital display and an acoustic signal is generated 
simultaneously. Make sure that the red pin is popped out in the tripped condition, 
i.e. that no adhesion or fusion has taken place. Short circuit the 

 and 15 A jacks 

with the selector switch set to the continuity test position, and “

0L

” must appear 

at the display.

Summary of Contents for METRAport 40S

Page 1: ...METRAport 40S Digital Multimeter 3 349 412 02 6 10 14 Operating Instructions ...

Page 2: ...k for all measuring ranges except current measuring ranges 6 connector jack for all measuring ranges 7 OFF ON ON OFF switch 8 Resettable miniature circuit breaker AUTO FUSE 9 Rotary switch for function selection 10 Eyelet for carrying strap 11 MAN AUTO Key for manual and automatic measuring range selection 12 DATA and MIN MAX Key for measured value storage 13 FUNC Multifunction key 1 2 7 9 10 12 1...

Page 3: ...DCAC 9 USB Interface display when communication is active is displayed 10 Unit of measure 11 Over ranging 12 RPM measurement Upm1 Upm2 at 2 4 stroke engines 13 Pointer for analog display 14 Analog display scale 15 Resistance thermometer Pt100 Pt1000 16 Thermocouple type K 17 Current clamp measurement active 18 Negative analog display range exceeded 19 Transformer ratio clip factor 20 Acoustic sign...

Page 4: ...es of Greater than 300 V 13 6 3 Low Voltage Measurement 13 7 Current Measurement 13 7 1 Current Measurement with Current Clamp Sensors with Voltage Output 15 7 2 RPM Measurement at combustion engines 15 8 Resistance Measurement 16 9 Continuity Testing 16 10 Diode Testing 17 11 Capacitance Measurment 18 12 Frequency Measurement Duty Cycle Measurement 18 13 Temperature Measurement with Pt100 and Pt1...

Page 5: ...t anywhere where voltages of greater than 33 V RMS may occur Avoid working alone when taking measurements which involve contact hazards Be certain that a second person is present Maximum allowable voltage between terminals 3 4 5 6 and ground is equal to 300 V category II The current measuring range A is equipped with a magnetic circuit breaker Max allowable voltage at the meas circuit miniature ci...

Page 6: ...trument is opened voltage conducting parts may be exposed The instrument must be disconnected from the measuring circuit before repair replacement of parts or balancing If repair or balancing of a live open instrument is required this may only be carried out by trained personnel who are familiar with the dangers involved Defects and Extraordinary Strains If it may be assumed that the instrument ca...

Page 7: ...nd leave it there for at least 5 s before returning it to the ON position Note Electrical discharges and high frequency interference may lead to erro neous display values and may disable the measuring sequence Reset the instrument by switching it off and then after 5 s back on again Switching the Instrument Off Manually Set the toggle switch to the OFF position and fold the instrument closed The b...

Page 8: ...asuring range for the following measured quantities 3 2 Manual Measuring Range Selection MAN AUTO Key Auto ranging can be deactivated and ranges can be set manually in accordance with the following table The manual mode is deactivated by pressing and holding the MAN AUTO key for about 1 s by turning the rotary switch or by switching the instrument off and back on again Measuring Ranges Resolution ...

Page 9: ... displayed to the left of the value for the measurement of zero frequency quantities if the positive pole of the measured quantity is applied to the jack If the measuring range upper limit is exceeded for the following measured quantities OL overload is displayed V DC I DC Hz V AC I AC 30 mF 30999 digits 30 nF 300 F 3099 digits The digital display is refreshed at different rates for the individual...

Page 10: ...ctivation occurs if the indicated measured value limits are fallen short of 2 Double acoustic signal after the first measured value has been stored Thereafter double acoustic signal only occurs if the currently frozen value deviates from the first stored value by less than 100 digits 3 Exception 10 at 300 Key MR measuring range The DATA function has no effect on the analog display which continues ...

Page 11: ...ually after the function has been activated and stored MIN MAX values and time stamps are deleted in doing so The MIN MAX function is deactivated by pressing and holding the DATA key for about 1 second by turning the function selector switch or by switching the instrument off and back on again Function MIN MAX Key DATA MIN and MAX Measured Values Time Stamps Reaction at Instrument Display Acoustic...

Page 12: ...ted for voltage measurement Both the operator and the instrument are in danger if the breaking thresholds for the fuses are exceeded due to operator error Zero Balancing in the 300 mV Measuring Range Select the 300 mV measuring range Connect the measure ment cables to the instru ment and connect the free ends to one another Briefly press the FUNC key The instrument acknowledges zero balancing with...

Page 13: ... GmbH The bonding terminal must be grounded in this case Observe all applicable safety precautions 1 HV3 3 kV 2 HV30 30 kV for DC voltage only 6 3 Low Voltage Measurement The instrument is equipped with a special 30 mV measuring range for measuring voltage drop at fuses which is distinguished by high resolution 10 V with a low input resistance of 50 k Set the rotary switch to Temp RTD Select V DC ...

Page 14: ... AC 50 V DC auto fuse In order to conform to the CAT requirements an additional slow blowing fuse link T16A 500V has been fitted in series with the miniature circuit breaker which can only be replaced by service per sonnel once it is tripped If a fuse or circuit breaker in the active current measuring range is tripped FUSE appears at the digital display and an acoustic signal is generated simultan...

Page 15: ...ating conditions per IEC EN 61010 2 32 regarding measurement category etc for the applied current sensor Additional error caused by the current sensor must be taken into consideration 7 2 RPM Measurement at combustion engines RPM is measured by acquiring pulses The number of measurable pulses per revolution varies depending upon the type of engine 2 or 4 stroke Set the rotary switch to Press the m...

Page 16: ...o balancing with an acoustic signal and 00 00 000 00 or 0 0000 k and the ZERO symbol appear at the LCD Resistance measured at the moment the key is pressed is used as a reference value max 2000 digits This value is automatically subtracted from all subsequently measured values Zero balancing can be cleared by pressing and holding the FUNC key after which clearing is acknowledged by a twice repeate...

Page 17: ...rument As long as voltage drop does not exceed the maximum allowed display value of 5 1 V several elements or reference diodes with minimal reference voltage can be connected in series for testing If 0L appears at the display either the circuit is interrupted or conducting state voltage is greater than 5 1 V Blocking Direction or Interruption 0L is displayed at the instrument If a value of less th...

Page 18: ...he key is pressed is used as a reference value max 2000 digits This value is automatically subtracted from all subsequently measured values Zero balancing can be cleared by pressing and holding the FUNC key after which clearing is acknowledged by an acoustic signal by switching the instrument off 12 Frequency Measurement Duty Cycle Measurement Turn the rotary switch to the Hz position Apply the me...

Page 19: ...TO keys simultaneously The currently selected cable resistance is displayed This value can be increased with the DATA key or reduced with the MAN AUTO key Each time one of these keys is briefly activated the value is changed by 10 digits 0 1 The value can be changed by means of rapid scrolling by pressing and holding the key Switch back to temperature measurement by briefly acknowledging with the ...

Page 20: ... pF Approximate Voltage Drop at MUL A 300 A 10 nA 160 mV 3 mA 100 nA 160 mV 30 mA 1 A 180 mV 300 mA 10 A 250 mV 3 A 100 A 360 mV 10 A 1 mA 920 mV Open Circuit Voltage Meas Cur at MUL 30 10 m 1 3 V max 250 A 300 10 m 1 3 V max 250 A 3 k 100 m 1 3 V max 150 A 30 k 1 1 3 V max 30 A 300 k 10 1 3 V max 3 A 3 M 100 1 3 V max 0 36 A 30 M 1 k 1 3 V max 0 1 A 300 0 1 max 8 4 V Ik 1 mA 5 1 V 1 1 mV max 8 4 ...

Page 21: ... Duration 30 mV 1 5 600 V DC AC eff sine continuous 300 mV 0 2 5 4 7 1 30 3 V 0 2 3 0 5 30 30 V 0 2 3 0 5 30 300 V 0 2 3 0 5 30 600 V 0 2 3 0 5 30 600 V CAT I 2 6 300 A 0 5 5 1 5 30 0 36 A dauernd 3 mA 0 5 5 1 5 30 30 mA 0 5 5 1 5 30 300 mA 0 5 5 1 5 30 3 A 0 7 5 1 5 30 10 A 3 10 A 0 7 5 1 5 30 30 1 5 300 V DC AC eff Sinus max 10 s 300 0 2 5 4 3 k 0 2 5 4 to 1 k 0 2 9 D 30 k 0 2 5 300 k 0 2 5 3 M ...

Page 22: ... 30 F 0 5 10 Hz 0 5 10 C Pt100 0 5 10 Influence Quantity Sphere of Influence max resolution Frequency Intrinsic Uncertainty 2 rdg d Frequency V AC 3 0000 V 30 000 V 15 Hz 45 Hz 3 30 65 Hz 1kHz 1 5 30 1 kHz 5kHz 2 5 30 5kHz 10kHz 3 30 300 00 mV 300 00 V 600 0 V 15 Hz 45 Hz 3 30 65 Hz 10kHz 3 30 Influence Quantity Sphere of Influence max resolution Frequency Intrinsic Uncertainty 2 rdg d Frequency I...

Page 23: ...nce Error Relative Humidity 75 3 days device off V A F Hz C 1 x intrinsic uncertainty Influence Quantity Sphere of Influence Measuring Range Damping Common Mode Interference Voltage interference quantity max 300 V V 90 dB interference quantity max 300 V 50 Hz 60 Hz sine 300 mV 30 V 60 dB 300 V 60 dB Series Mode Interference Voltage interference quantity V nom value respective measuring range max 3...

Page 24: ... with automatic switching Overload Display triangle appears Sampling Rate 20 measurements per second Digital Display Char Height 7 segment characters 20 mm Number of Places 4 place 31000 steps Overload Display 0L appears Polarity Display is displayed if plus pole is connected to jack Sampling Rate 2 measurements per second Display Refresh Rates V DC V AC A C Pt100 Pt1000 twice per second Hz once p...

Page 25: ... Electrical Safety Safety Class II per IEC EN 61010 1 2010 VDE 0411 1 2011 Measurement Category CAT II Operating Voltage 300 V Pollution degree 2 Test Voltage 2 3 kV per IEC EN 61010 1 2010 VDE 0411 1 2011 Electromagnetic Compatibility EMC Interference Emission EN 61326 1 2006 Class B Interference Immunity EN 61326 1 2006 EN 61326 2 1 2006 Ambient Conditions Accuracy range 0 C 40 C Operating Temp ...

Page 26: ...e battery compartment cover and press down until the battery compartment cover snaps open Fold the instrument open as far as it will go and remove the battery compartment cover Insert two 1 5 V mignon batteries per IEC R6 or IEC LR6 into the battery compartment making sure they are poled in accordance with the symbols Replace the battery compartment cover and press into position until it audibly s...

Page 27: ...roG 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 com by entering the search term WEEE We identify our electrical and electronic devices in accordance with WEEE 2012 19EU and ElektroG with the symbol shown to the right pe...

Page 28: ...ntatives or subsidiaries for service in other countries DAkkS Calibration Laboratory for Electrical Quantities D K 15080 01 01 accredited per DIN EN ISO IEC 17025 2005 Accredited measured quantities direct voltage direct current values DC resistance alternating voltage alternating current values AC active power AC apparent power DC power capacitance frequency and temperature 19 Product Support Whe...

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