Operating Instructions METRAport40S Digital Multimeter 3-349-412-02 6/10.
1 3 13 12 11 10 2 5 6 9 8 4 4 3 5 7 6 Control Elements 1 LCD 2 Battery compartment cover 3 mA, A connector jack for direct measurement of current to “max. 10 A” 4 A connector jack for current clamp measurement to “max.
1 2 3 4 5 6 7 8 9 10 21 20 19 18 17 16 15 14 13 12 11 Digital Display Symbols 1 Continuous operation 2 Battery voltage display 3 Digital display with indication of decimal place and polarity 4 Manual measuring range selection 5 Display memory, “freeze measured value” 6 MIN-MAX storage 7 ZERO: zero balancing active 8 Selected current type, DC ( ) or DCAC ( ) 9 USB Interface display (when communication is active is displayed) 10 Unit of measure 11 Over-ranging 12 RPM measurement: Upm1/Upm2 (at
Contents......................................................................................................................... Page 1 Safety Features and Precautions ............................................................................5 2 Initial Start-Up .........................................................................................................7 3 3.1 3.2 3.3 Selecting Measuring Functions and Measuring Ranges .........................................
1 Safety Features and Precautions You have selected an instrument which provides you with a high level of safety. This instrument fulfills the requirements of the applicable European and national EC guidelines. We confirm this with the CE marking. The relevant declaration of conformity can be obtained from GMC-I Messtechnik GmbH. The analog/digital multimeter has been manufactured and tested in accordance with safety regulations IEC 61010–1:2010/DIN EN 61010–1:2010/VDE 0411– 1:2011.
• 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 15, “Characteristic Values”. Meaning of symbols on the instrument ! Warning concerning a point of danger (Attention: observe documentation!) Earth Continuous doubled or reinforced insulation CAT II Measurement category II device Indicates CE conformity The device may not be disposed of with the trash.
2 Initial Start-Up Installing 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.
Disabling Automatic Shutdown The instrument can be switched to “CONTINUOUS ON”. ➭ Press the FUNC key while switching the instrument on with the toggle switch until an acoustic signal is generated. The “CONTINUOUS ON” function is indicated at the display with the symbol. 3 3.1 Selecting Measuring Functions and Measuring Ranges Automatic Measuring Range Selection The multimeter is equipped with auto-ranging for all measuring ranges except for temperature measurement, diode and continuity testing.
3.3 Quick Measurements If you wish to perform quicker measurements than those possible with the automatic measuring range selection function, make sure to establish the appropriate measuring range: • by manual measuring range selection, i. e. by selecting the measuring range with the best resolution, see chapter 3.2. or • via DATA function, see chapter 5.
5 5.1 Measured Value Storage – DATA / MIN-MAX Key DATA (hold / compare) Measured values can be automatically frozen at the display with the DATA (hold) function. This is especially useful when full attention is required for contacting the measuring point. After the measured value has been applied to the multimeter and the “condition” indicated in the following table has been fulfilled, the measured value is frozen at the digital display and an acoustic signal is generated.
5.2 Storage of Minimum and Maximum Values “MIN/MAX” with Time Stamp Minimum and maximum measured values which occur at the input of the measuring instrument after the MIN/MAX function has been activated can be saved to memory. The most important application for this function is the determination of minimum and maximum values during long-term observation of measured quantities (same function as the slave pointer at an analog display). The “MIN/MAX” function can be activated for all measuring ranges.
6 Voltage and Frequency Measurement ➭ Set the rotary switch to either V (TRMS) or V , depending upon the voltage to be measured. You can switch back and forth between voltage and frequency switch position by pressing the FUNC key. measurement in the V Connect the measurement cables as shown. The jack must be grounded. ➭ ➭ Note! An intermittent acoustic signal warns the operator if the measured value exceeds the measuring range upper limit in the 600 V range.
6.1 Transient Overvoltages The multimeter is protected against transient voltages of up to 4 kV with front and half times of up to 1.2 and 50 s respectively. Due to the fact that powerful overvoltages must be reckoned with during measurement, for example in power systems, at transformers or motors, we recommend the use of our KS30 measuring adapter in such cases. It offers protection against transient overvoltages of up to 6 kV with front and half times of up to 10 and 1000 s respectively.
Notes Concerning Current Measurement: • The instrument may only be used in power installations if the electrical circuit is protected with a fuse or a circuit breaker with a rating of up to 20 A, and if nominal voltage at the system does not exceed 240 V~ (AC) or 50 V (DC). • Set up the measuring circuit in a mechanically secure fashion such that it cannot be inadvertently interrupted. Use conductors with an adequate cross section and connectors of adequate size in order to prevent excessive warming.
7.1 Current Measurement with Current (Clamp) Sensors with Voltage Output If a current sensor is connected to the multimeter, all current values are displayed correctly in consideration of the transformer ratio. This presupposes that the current sensor is equipped with the required sensitivity, and that the appropriate ratio is selected before measurement is performed. ➭ Turn the rotary switch to the position.
➭ ➭ Resistance Measurement Set the rotary switch to the position. Overload is indicated if no device under test has been connected: “0.L M”. Before connecting the device under test, make sure that it is voltagefree. Interference voltages distort measurement results! Perform a voltage test first if required. Connect the device under test as shown in the diagram.
10 ➭ ➭ ➭ Diode Testing Turn the selector switch to the position. Overload is indicated if no device under test has been connected: “.0L V”. Make sure that the device under test is voltage-free. Interference voltages distort measurement results! Perform a voltage test first if required. Connect the device under test as shown in the diagram. Conducting Direction or Short-Circuiting Conducting state voltage is displayed in volts at the measuring instrument.
11 ➭ ➭ ➭ Capacitance Measurment Make sure that the device under test is voltage-free. Interference voltages distort measurement results! Turn the rotary switch to the “F” position. Connect the (discharged!) device under test to the and V jacks with the measurement cables.
➭ ➭ Temperature Measurement with Pt100 and Pt1000 Set the rotary switch to “Temp RTD”. Connect the Pt sensor to the and V jacks. The instrument automatically recognizes type of connected sensor (Pt100 or Pt1000), and displays measured temperature in the selected unit of measure. Z3409 13 Note! The characteristic cable resistance for the temperature sensors which are available as accessories is automatically taken into consideration for this measurement.
15 Characteristic Values Measuring Function V DC V A 30 mV 300 mV 3 V 30 V 300 V 600 V 3) 4) % C/F Resolution at MUL 30 000 3 000 10 V 10 V 100 V 1 mV 10 mV 100 mV 300 3 30 300 3 10 A mA mA mA A A 10 100 1 10 100 1 30 300 3 30 300 3 30 300 k k k M M 10 m 100 m 1 10 100 1 k 5.1 V 1) 1 mV 30 300 3 30 300 F Hz Measuring Range nA nA A A A mA 10 m 0.1 nF nF F F F 300.00 Hz 3.0000 kHz 30.000 kHz 300..00 kHz 1.0000 MHz 15...300 Hz: 2.0... 98.0% ...
Measuring Range 30 mV 300 mV 3 V 30 V 300 V 600 V Intrinsic Uncertainty under Reference Conditions ( % rdg. + d) ( % rdg. + d) ~ 1+5 0.2 + 5 4) 7 0.2 + 3 0.2 + 3 0.2 + 3 0.2 + 3 2) 6) — 1 + 30 0.5 + 30 0.5 + 30 0.5 + 30 0.5 + 30 Overload Capacity 1) Value 600 V (DC) ~ (AC) eff sine Duration continuous 600 V CAT I ~ 2) 6 300 3 30 300 3 10 30 300 3 30 300 3 30 A mA mA mA A A k k k M M 5.1 V 30 nF 300 nF 3 F 30 F 300 F 300.00 Hz 3.
Influence Quantities and Influence Error Influence Quantity Sphere of Influence Measured Quantity / Measuring Range 1) V 0.2 + 10 V~ 0.4 + 10 300 A 300 mA +~ Temperature Influence Quantity Frequency V~(AC) 0 C +21 C and +25 C +40 C Sphere of Influence (max. resolution) 3.0000 V 30.000 V 300.00 mV 300.00 V 600.0 V Influence Quantity Sphere of Influence (max. resolution) 300.00 A 3.0000 mA, 30.000 mA 10.000 A Frequency I~(AC) 300.00 mA 3.
Influence Quantity Sphere of Influence Measured Quantity / Measuring Range 12 Crest factor CF 1) 1% rdg. > 2 4 5% rdg. V ~, A ~ > 4 5 7% rdg.
Response Time (after manual range selection) Measured Quantity / Measuring Range V A , V ~, ,A~ 30 3 M Digital Display Response Time Measured Quantity Jump Function 1.5 s from 0 to 80% of the measuring range upper limit 2s 30 M 5s Continuity < 50 ms from to 50% of the measuring range upper limit 1.5 s C (Pt100/Pt1000) max. 3 s 30 nF 300 F max. 2 s >10 Hz max. 1.
Service Life Battery Test with alkaline-manganese batteries: approx. 100 hours Battery capacity display with battery symbol in 4 segments: “ ” Battery Saving Circuit The instrument is switched off automatically – if the measured value remains unchanged for a period of approximately 10 minutes, and if none of the control elements are operated during this period. Automatic shutdown can be disabled. – If battery voltage drops to below approx. 1.
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.
! Attention! Inspect the measuring circuit and eliminate the cause of overload before activating the reset button at the miniature circuit breaker. The fuse link connected in series to the auto-fuse may only be replaced by authorized service personnel. 16.3 Housing / Opening of Equipment / Repair 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.
18 Repair and Replacement Parts Service Calibration Center* and Rental Instrument Service When you need service, please contact: GMC-I Service 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.
