Metrix MTX 3290 Operating Instructions Manual
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Metrix MTX 3290 Operating Instructions Manual

Portable multimeters with digital display asyc-iv mtx 3290 - 6000 cts mtx 3291- 60000 cts
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Portable multimeters
with digital display
ASYC-IV
MTX 3290 - 6000 cts
MTX 3291- 60000 cts
Operating instructions
Pôle Test et Mesure CHAUVIN ARNOUX
Parc des Glaisins - 6, avenue du Pré de Challes
F - 74940 ANNECY-LE-VIEUX
Tel. +33 (0)4 5064 2222 - Fax +33 (0)4 5064 2200
X04065A02 - Ed. 01 - 06/14

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Summary of Contents for Metrix MTX 3290

  • Page 1 Portable multimeters with digital display ASYC-IV MTX 3290 - 6000 cts MTX 3291- 60000 cts Operating instructions Pôle Test et Mesure CHAUVIN ARNOUX Parc des Glaisins - 6, avenue du Pré de Challes F - 74940 ANNECY-LE-VIEUX Tel. +33 (0)4 5064 2222 - Fax +33 (0)4 5064 2200...

  • Page 2: Table Of Contents

    Replacing the fuse ................................. 7 Rechargeable and primary batteries ..........................7 Communication interface ............................... 7 Description of the instruments ......................... MTX 3290 frontal panel, back, terminal block........................ 8 MTX 3291 frontal panel, back, terminal block........................ 9 Display unit .................................. 10 Switch ..................................13 Keypad ..................................

  • Page 3: General Directions

    • Can be used for measurements on circuits: - MTX 3290: 600V, CAT III and 300V, CAT IV. - MTX 3291: 1000V CAT III and 600 CAT IV. However, some accessories may lead to the use of this instrument on circuits of a lower voltage and category.

  • Page 4: Special Functions

    This protection is reset automatically after the overload. • a fuse that provides protection during current measurements. - MTX 3290: 10A - MTX 3291: 11A Special functions Automatic The number of input terminals is limited to 3: V, COM, A. Connecting the lead to the "Ampere"...

  • Page 5: Symbols On The Instrument

    General directions General directions (continued) Definitions of the CAT II: Test and measurement circuits directly connected to the points of use measurement of the low-voltage network (power outlets and other similar points). categories E.g.: Measurements on the network circuits of household appliances, portable tools, and similar devices.

  • Page 6: Warranty, Maintenance, Metrological Verification, Repair Under Warranty

    General directions General directions (continued) This equipment is warranted for 3 years against any defect of materials or Warranty workmanship, in accordance with the general terms of sale. During the warranty period, the instrument may be repaired only by the manufacturer, who reserves the right to repair the instrument or to replace it or part of it.

  • Page 7: Maintenance

    Checking the current fuse: Fuse: SIBA/5019906 MTX 3291: 11A: 10x38 – 1,000V - F breaking capacity: >20kA MTX 3290: 10A: 6x32 - 600V - F breaking capacity: >50kA The multimeter is powered by primary or rechargeable batteries (see above). Rechargeable...

  • Page 8: Description Of The Instruments

    Description of the instruments Description of the instruments MTX 3290 Frontal panel Back Prop Terminal block Optical connector: not active ! 6,000- and 60,000-count digital multimeters...

  • Page 9: Mtx 3291 Frontal Panel, Back, Terminal Block

    Description of the instruments Description of the instruments (continued) MTX 3291 Frontal panel Back Prop Terminal block Optical connector: active! 6,000- and 60,000-count digital multimeters...

  • Page 10: Display Unit

    Description of the instruments Description of the instruments (continued) Display unit The display is in two parts: • A digital display for convenient reading of the digits: - main display unit: 12.7mm - secondary display unit: 9.7mm • The "bargraph" display (61 segments) with scale (indication of the measurement range) for an analogue reading MTX 3291 MTX3290...
  • Page 11 Description of the instruments Description of the instruments (continued) Symbols Designation Measurement of the AC signal Measurement of the DC signal Measurement of the AC and DC signal AC+DC Automatic range switching AUTO Δ REL Values relative to a reference Reference value Storage and display of stored values HOLD...
  • Page 12 Description of the instruments Description of the instruments (continued) This symbol indicates the battery charge level. Volt, Ohm, temperature, etc. measurement input COM measurement input Ampere measurement input 600V CAT III Input indication 1000V CAT III Input indication Isolated optical link (USB) input Display of unit on the main display unit (2x14 segments) Display of unit on the secondary display unit (2x14 segments) Identifies the reminder of the display zone connection...

  • Page 13: Switch

    The keys of the switch have priority over the action of the keys of the keypad. The change from one function to another resets the configuration of the measurement mode. MTX 3290 Short press Successive short presses Keys of the switch...
  • Page 14 Description of the instruments Description of the instruments (continued) MTX 3291 Short press Successive short presses Keys of the switch Current measurement Selection of the type of probe: Temperature measurement Pt100, Pt1000 Capacitance measurement Low-impedance AC voltage measurement (VLowZ) Current measurement using a Selection of the transformation ratios current clamp 1, 10, 100, 1,000mV/A...

  • Page 15: Keypad

    • Long press press lasting >2 seconds, validated by a beep as soon as the key press is detected. MTX 3291 MTX 3290 Successive short presses Long press Function keys Activation/deactivation of storage of the measurements and of the...
  • Page 16 Description of the instruments Description of the instruments (continued) Manual selection of measurement range: the range defines the maximum Used to return to Auto measurement range the instrument can Range mode. cover. The Auto Range mode is default. Activation of the Peak+ Peak- measurements: - Peak+: displays the maximum instantaneous peak value of the...
  • Page 17 - circular operation: brightness 1 brightness 2 brightness 3 brightness 1 Activation/Deactivation of the zero centre bargraph: MTX 3290 only Activation/Deactivation of auto power off: MTX 3290 only Remark 1 - The 0 centre bargraph is managed automatically in I and V (MTX 3291 only).

  • Page 18: Getting Started

    Getting started Getting started Preparation for use Instructions before When you use this multimeter, you must observe the usual safety rules, starting up which: • protect you from electrical hazards, • protect the multimeter from operator errors. For your safety, use only the leads and accessories (clamp meter, etc.) supplied with the instrument.

  • Page 19: Functional Description

    Functional description Functional description The examples described in this chapter use an 1. MAX MIN AVG mode A beep indicates an overshoot or a change of quantity. Displays in the function AC+DC Measured signal: 230V, 50Hz: Main display Present value of the signal unit Frequency of the signal Secondary display...
  • Page 20 Functional description Functional description (continued) The display then becomes: Present value of the signal MAX value for the MIN value: press Ex.: 3s h: min: sec MIN value Momentary screen (4s) indicating the time-stamped max. value, if the value changes or if the value is looked up. The display then becomes: Present value of the signal MIN value...
  • Page 21 Functional description Functional description (continued) for the AVG value: press on Present value of the signal AVG value By a long press on the key. De-activation 6,000- and 60,000-count digital multimeters...

  • Page 22: Peak Mode

    Functional description Functional description (continued) 2. PEAK mode A beep indicates an overshoot or a change of quantity. Displays in the function AC+DC Measured signal: 250V, 50Hz: Present value of the signal MIN value for the Peak+ value: First press on Present value of the signal Peak+ value Second press on...

  • Page 23: Δrel Mode

    Functional description Functional description (continued) 3. ∆REL mode Displays in the function AC+DC Measured signal: 1V, 100Hz: Present value of the signal Frequency of the signal Activation of the Δ REL mode by Short press on the ∆REL=(present value - reference value) Reference value The measured signal changes to1.5V: (∆REL=1.5V- 1V=0.5V)
  • Page 24 Functional description Functional description (continued) Short press, in the ∆REL mode, on Present value – reference value ∆ x100 REL (%) = Reference value Reference value A long press on the erases the reference value. By a long press on the key. De-activation 6,000- and 60,000-count digital multimeters...

  • Page 25: Clamp" Function

    Functional description Functional description (continued) 4. "Clamp" function Ex.: 10mV/A Present value of the signal Transformation ratio, selected by successive presses on press 1: 1mV/A press 2: 10mV/A press 3: 100mV/A press 4: 1,000mV/A 6,000- and 60,000-count digital multimeters...
  • Page 26 Functional description Functional description (continued) Serial operation of the keys of the switch MTX 3290 Short Press 1 Press 2 Press 3 Press 4 Press 5 press … … Pt100 Pt1000 Pt100 Pt1000 Pt100 … Capa Capa Capa Capa Capa …...

  • Page 27: Functions Of The Switch And Keys

    Functional description Functional description (continued) Functions of the switch To access the ,dBm, and keys W, continuity, diode, duty cycle, and pulse duration functions, press the button of the switch corresponding to the chosen function. Here are the possible combinations according to the type of measurement: RANGE MAX/MIN/ ΔREL...

  • Page 28: How Are The Various Quantities Measured

    The input impedance <1MΩ serves to avoid measuring "phantom" voltages due to couplings between the lines. In all cases, “O.L” is displayed above 1050V (MTX 3291) or 620V (MTX 3290) and a beep sounds when the measurement exceeds 1000V (MTX 3291) or 600V (MTX 3290).

  • Page 29: Current Measurement

    How are the various quantities measured? How are the various quantities measured? (continued) 2. Current measurement as an ammeter 1. Press: 2. Select the type of signal, AC+DC, AC, or DC, by pressing . Depending on what you select, the screen displays AC, DC, or AC+DC. 3.
  • Page 30 How are the various quantities measured? How are the various quantities measured? (continued) with a current 1. Press: clamp 2. Select the type of signal, AC+DC, AC, or DC, by pressing Depending on what you select, the screen displays AC, DC, or AC+DC. 3.

  • Page 31: Frequency Measurement

    How are the various quantities measured? How are the various quantities measured? (continued) 3. Frequency measurement 1. Press: 2. Connect the black lead to the “COM” terminal and the red lead to “V”. 3. Place the test probes on the terminals of the circuit to be measured. Connect the instrument as for a resistance measurement.

  • Page 32: Audible Continuity Measurement

    How are the various quantities measured? How are the various quantities measured? (continued) 5. Audible continuity 1. Press: measurement ♪ 2. Press again; the " " symbol is displayed. 3. Connect the black lead to the “COM” terminal and the red lead to «V». 4.

  • Page 33: Capacitance Measurement

    How are the various quantities measured? How are the various quantities measured? (continued) 7. Capacitance measurement 1. Press: 2. Connect the black lead to the “COM” terminal and the red lead to “V”. 3. Place the test probes on the terminals of the component: 4.

  • Page 34: Temperature Measurement

    How are the various quantities measured? How are the various quantities measured? (continued) 8. Temperature measurement 1. Press: 2. Press to select the type of probe: Pt100 or Pt1000 3. Press to switch the temperature unit (°C or °F) between the two display units.

  • Page 35: Measurement On An Mli Type Speed Variator

    6. Read the measurement values indicated on the display unit (voltage and frequency): In all cases, “O.L” is displayed above 1050V (MTX 3291) or 620V (MTX 3290) and a beep sounds when the measurement exceeds 1000V (MTX 3291) or 600V (MTX 3290).
  • Page 36 How are the various quantities measured? How are the various quantities measured? (continued) Current 1. Press: measurement 2. Select the type of signal, AC+DC, AC, or DC, by pressing Depending on what you select, the screen displays AC, DC, or AC+DC. 3.

  • Page 37: Resistive Power (Mtx 3291)

    How are the various quantities measured? How are the various quantities measured? (continued) 10. Resistive power (MTX 3291, only) Press: Press again . Select AC+DC, AC or DC coupling of the signal by pressing (the default coupling is AC+DC). Depending on what you select, the screen displays DC, AC or AC+DC. Connect the black lead to the “COM”...

  • Page 38: Dbm Decibels In Power (Mtx 3291)

    How are the various quantities measured? How are the various quantities measured? (continued) 11. dBm decibels in power (MTX3291, Press: only) Press again . Press to select the reference resistance, 50, 75, 90, or 600 Ohm. Connect the black lead to the “COM” terminal and the red lead to “V”. Place the test probes on the terminals of the circuit to be measured.

  • Page 39: Sx-Dmm Software

    SX-DMM software SX-DMM software SX-DMM: Processing These multimeters can be interfaced directly with a PC or other computer using software "SX-DMM" acquisition software: The transmission rate is 9600 Bauds. The transmission parameters are fixed (8 data bits, 1 stop bit, no parity). Connection of the 1.

  • Page 40: Technical Characteristics Of Mtx 3290

    Technical characteristics of the MTX 3290 Technical characteristics of the MTX 3290 Accuracy: Only values with tolerances or limits are guaranteed values. “n% L+n D” means Values without tolerances are given for guidance (standard NFC42670). “n% of the reading The technical specifications are guaranteed only after 30 minutes of warming up.
  • Page 41 Technical characteristics of the MTX 3290 Technical characteristics of the MTX 3290 (continued) Protection: 850Vpk AC+DC TRMS Specified Additional Input Uncertainty Uncertainty Operating Pass Peak Range measure. Resolution uncertainty impedance range band factor DC (±) AC (±) range F (Hz) // <50 pF...
  • Page 42 Technical characteristics of the MTX 3290 Technical characteristics of the MTX 3290 (continued) Three possible modes: DC, AC, AC+DC Currents In DC mode, you can measure a direct current or the DC component of an alternating current. In the AC and AC+DC modes, you can measure the true RMS (TRMS) value of an alternating current with/without its direct component (no capacitive coupling in "DC"...
  • Page 43 Technical characteristics of the MTX 3290 Technical characteristics of the MTX 3290 (continued) Warning: The sum AC+DC must never exceed the range, 600mA, or AC+DC TRMS current 60mA, or 6mA, or 6A, or 10A, as the case may be. Additional...
  • Page 44 Technical characteristics of the MTX 3290 Technical characteristics of the MTX 3290 (continued) Frequency Main frequency In this setting, you can measure the frequency of a voltage. measurement Particular reference conditions: 150mV <U <600V When the switch is set to Hz, the 300Hz filter is not in service.
  • Page 45 Technical characteristics of the MTX 3290 Technical characteristics of the MTX 3290 (continued) Resistance Ohmmeter In this setting, the user can measure a resistance. Particular reference conditions: The (+COM) input must not have been overloaded following the accidental application of a voltage to the input terminals with the switch set to Ω or T°.
  • Page 46 Technical characteristics of the MTX 3290 Technical characteristics of the MTX 3290 (continued) Measurement Diode Test Range Resolution Accuracy Open-circuit voltage current 2% L ±3D <5V <1.1mA Audible signal triggered if <40mV ±10mV Protection: 850Vpk Open-circuit Measurement Audible continuity Range...
  • Page 47 Technical characteristics of the MTX 3290 Technical characteristics of the MTX 3290 (continued) Range AC+DC TRMS current 600mA 600A 6000A Ratio Resolution 0.01A 0.1A 1mV/A 2.8% L ±15D Accuracy 2.8% L ±15D 2.8% L ±13D (∗) Resolution 0.001A 0.01A 0.1A 10mV/A 2.8% L ±15D...
  • Page 48 Technical characteristics of the MTX 3290 Technical characteristics of the MTX 3290 (continued) Temperature The user can measure the temperature by means of a Pt100/Pt1000 sensor. Pt100/Pt1000 Range Measurement current Resolution Accuracy Protection - 125°C to <1mA (Pt100) 0.1°C ± 0.5°C + 75°C...
  • Page 49 Technical characteristics of the MTX 3290 Technical characteristics of the MTX 3290 (continued) Influence Quantity of Range of Quantity Variation in the influence influence influenced typical nominal range of use Battery < 3D 4V to 6V 0.2% L+1D voltage 0.02% L ±0.2D/1°C 0.04% L ±0.25D/1°C...

  • Page 50: Technical Characteristics Of Mtx 3291

    Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 Accuracy: Only values with tolerances or limits are guaranteed values. “n%L + nD” means Values without tolerances are given for guidance (standard NFC42670). “n% of the reading The technical specifications are guaranteed only after 30 minutes of warming up. Except + n Digit”...
  • Page 51 Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 (continued) 1) See the typical curve of the 300Hz. (continued) 2) This range is accessible only with the Range key Input impedance: approx. 10.6MΩ // 50 pF 3) The LCD indicates “+OL” above +1050V, “-OL” below -1050V or above 1050VRMS. 4) From 1kHz, the measurement must exceed 15% of the range.
  • Page 52 Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 (continued) Three possible modes: DC, AC, AC+DC Currents In DC mode, you can measure a direct current or the DC component of an alternating current. In the AC and AC+DC modes, you can measure the true RMS (TRMS) value of an alternating current with/without its direct component (no capacitive coupling in "DC"...
  • Page 53 Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 (continued) AC RMS current Specified Uncertainty (±) Voltage Range Operating range measurement Resolution 40Hz to 20kHz Peak factor Protection drop range (**) 0 to 60 to 1.5% L 2.6 to 600µA 0.01µA...
  • Page 54 Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 (continued) Frequency Main frequency In this setting, you can measure the frequency of a voltage. measurement Particular reference conditions: 150mV <U <600V When the switch is set to Hz, the 300Hz filter is not in service. Protection: 1414 Vpk Specified Range...
  • Page 55 Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 (continued) Resistance Ohmmeter In this setting, the user can measure a resistance. Particular reference conditions: The (+COM) input must not have been overloaded following the accidental application of a voltage to the input terminals with the switch set to Ω or T°. If this happens, the return to normal may take about ten minutes.
  • Page 56 Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 (continued) Diode test Measurement Range Resolution Accuracy Open-circuit voltage current 0.1mV 1% L ±30D <5V <1.1mA Audible signal triggered if <40mV ±10mV Protection: 1414 Vpk Audible continuity Open-circuit Measurement Range Resolution...
  • Page 57 Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 (continued) Range 600mA 600A 6000A AC RMS current Ratio Resolution 0.01A 0.1A 1% L+0.25% 0.5% L+0.18% x [F(kHz)-1] L x [F(kHz)-1] L 1mV/A 1.5% L ±5D Accuracy ±5D ±3D (BW ≈...
  • Page 58 Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 (continued) Temperature The user can measure the temperature by means of a Pt100/Pt1000 sensor . Pt100/Pt1000 Range Measurement current Resolution Accuracy Protection -200°C to <1mA (Pt100) 0.1% L ±1°C 0.1°C 1414 Vpk +800°C...
  • Page 59 Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 (continued) Pulse width Depending on frequency counter triggering conditions. ( ) ( Resolution 10µs Minimum pulse width 100µs 0.1% ±10µs Accuracy Maximum duration of a period 1.25s (0.8Hz) Triggering threshold 20% of the range except 1000V range...
  • Page 60 Technical characteristics of the MTX 3291 Technical characteristics of the MTX 3291 (continued) Influence Variation in the Quantity of Range of Quantity influenced influence influence nominal range of use typical <3D Batt. voltage 4V to 6V 0.2% L+1D 0.02% L ±0.2D/1°C 0.04% L ±0.25D/1°C DCmV 0.08% L ±0.2D/1°C...

  • Page 61: General Characteristics

    General, mechanical charateristics General characteristics Altitude <2000m Environmental Reference range 23°C ±5°C conditions Specified range of use -10°C to 55°C Influence of temperature see §. Influences Relative humidity 0% to 80% from 0°C to 31°C 0% to 70% from 40°C to 55°C limited to 70% for the 6 and 60 Ω...

  • Page 62: Supply

    • MTX 3291: Fuse, 11A, 10x38, 1000V - Fast - breaking capacity: >20kA spare MTX 3290: Fuse, 10A: 6x32 - 600V - Fast - breaking capacity: >50kA (Get in touch with our Manumesure Regional Technical Centre). • Kit of test accessories for DMM (P01295459Z) •...

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