Bahco BMMTRS1 User manual
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1. GENERAL INSTRUCTIONS ................................ 3
1.1 Precaution safety measures .............................. 3
1.1.1 Preliminary ............................................................ 3
1.1.2 During use ............................................................. 3
1.2 Symbols ............................................................... 4
1.3 Instructions ......................................................... 5
2. DESCRIPTION ..................................................... 5
2.1 Instrument Familiarization ................................. 5
2.2 LCD Display ......................................................... 6
2.3 Key pad ................................................................ 7
3. FUNCTION DESCRIPTION .................................. 7
3.1 General Functions .............................................. 7
3.1.1 DATA HOLD mode ................................................ 7
3.1.2 Manual ranging and Auto-range mode .................. 8
3.1.3 Battery saver ......................................................... 8
3.1.4 Relative measurement mode ................................ 8
3.1.5 True RMS measurement ....................................... 8
3.2 Measurement Functions ..................................... 8
3.2.1 AC and DC Voltage measurement ........................ 8
3.2.2 Resistance measurement ..................................... 9
3.2.3 Capacitance measurement ................................... 10
3.2.4 Continuity Check ................................................... 11
3.2.5 Diode Test ............................................................. 12
3.2.6 Frequency measurement ...................................... 13
3.2.7 Temperature measurement ................................... 13
3.2.8 Current measurement ........................................... 14
3.2.9 NCVhEF ................................................................ 15
3.2.10 PC Link ................................................................. 15
4. TECHNICAL SPECIFICATIONS .......................... 15
*HQHUDOVSHFL¿FDWLRQV ........................................ 15
0HDVXUHPHQWVSHFL¿FDWLRQV .............................. 16
4.2.1 Voltage .................................................................. 16
4.2.2 Frequency ............................................................. 17
4.2.3 Resistance ............................................................ 17
4.2.4 Diode Test ............................................................. 17
4.2.5 Continuity Check ................................................... 18
4.2.6 Capacitance .......................................................... 18
4.2.7 Temperature .......................................................... 18
4.2.8 Current .................................................................. 18
5. MAINTENANCE ................................................... 19
5.1 General maintenance .......................................... 19
5.2 Fuse replacement ............................................... 20
5.3 Battery replacement ........................................... 20
6. ACCESSORIES .................................................... 20
ENGLISH
Contents
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BMMTRS1
This instrument complies with IEC 61010-1: 2001, CAT III 1000V and CAT IV 600V overvoltage standards.
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To get the best service from this instrument, read carefully this user’s manual and respect the detaile
safety precautions.
International symbols used on the Meter and in this manual are explained in chapter 1.2.
1.1 Precautions safety measures
1.1.1 Preliminary
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stringent safety standards are set for the electrical test equipment. Transients on electrical systems
(power grid, feeder or branch circuits) will trigger a series of incidents that may result in serious
personal injury. To protect you against transients, safety must be built into the test equipment.
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— Protection against the dangers of electric current.
— Protection of the Multimeter against misuse.
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they are in good condition.
1.1.2 During use
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or indicate large errors.
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be impaired.
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1. GENERAL INSTRUCTIONS
Overvoltage
category In brief Examples
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limit transient overvoltage to an appropriately low level.
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ance transformer, such as the high-voltage section of a copier.
CAT II Single-phase
receptacle con-
nected loads
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CAT III Three-phase dis-
tribution, including
single-phase com-
mercial lighting
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CAT IV Three-phase at
utility connec-
tion, any outdoor
conductors
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made to utility power.
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between meter and panel.
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multimeter is the highest possible or, wherever possible, choose the auto-ranging mode.
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hazard.
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disconnecting, disconnect the live test lead before disconnecting the common test lead.
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a dc voltage range equal to or greater than the ac range.
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tinuity, diodes, or capacitance.
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the meter to the circuit.
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attenuate any such pulses.
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might produce false readings that can lead to electric shock and personal injury.
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voltage may be present.
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1.2 Symbols
Symbols used in this manual and on the instrument:
CAUTION: refer to the instruction manual.
Incorrect use may result in damage to the
device or its components.
AC (Alternating Current)
DC (Direct Current)
AC or DC
Earth ground
Double insulated
Fuse
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1.3 Instructions
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sure you are not charged with static electricity, which may destroy internal components.
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ULHGRXWRQO\E\DSSURSULDWHO\TXDOL¿HGSHUVRQQHODIWHUKDYLQJWDNHQLQWRDFFRXQWWKHLQVWUXFWLRQVLQ
this present manual.
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the equipment and the hazards involved. He is trained and authorized to energize and de-energize
circuits and equipment in accordance with established practices.
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potential even after the instrument is switched off.
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cannot be used until it has been checked out.
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in high temperature or high humidity environment.
2. DESCRIPTION
2.1 Instrument Familiarization
The front panel is shown as in Figure 2-1, explanation being as follows:
1LCD display
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various symbols.
2Keypad
Measurement function keys.
3Rotary switch
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4Terminal receiving the red test lead for
voltage, resistance, capacitance, frequency,
temperature, diode and continuity measurements.
5μA/mA
Terminal receiving the red test lead for μA, mA
measurements.
6A
Terminal receiving the red test lead for 6A, 10A
measurements.
7COM
Terminal receiving the black test lead as a common
reference. Figure 2-1
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2.2 LCD Display
LCD screen is shown as in Figure 2-2, with its every symbol’s meaning shown as in the Table 1:
Figure 2-2
No. Symbol Meaning
1Indicates negative readings
2AC Indicator for AC voltage or current
3DC Indicator for DC voltage or current
4AUTO The meter is in the Auto-range mode in which the meter automatically selects
5PC-LINK The Meter is in the data transmission mode
6NCV No contact AC Voltage detect
7HThe meter is in Data Hold mode w
8REL The meter is in Relative Measurement mode
9MAX Display maximum data
10 MIN Display minimum data
11 Low battery indication
12 The meter is in Continuity Check mode
13 The meter is in Diode Test mode
14 &).0+]
nμm FAV Measurement units
15 This symbol means that the input is too large for the selected range
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2.3 Keypad
2.3.1 SELECT
Change to the second function.
1. At
and position
Switches between Resistance measurement, Diode Test and Continuity check.
2. At A mA μAposition
Switches between DC and AC current.
3. Power-up Option
Disables automatic power-off feature. Keep press this key when power on.
2.3.2
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and hold for 2 seconds again, backlight off.
2.3.3 RANGE
At V~, V , A, mA and μA.
1. Press RANGE to enter in manual ranging mode.
2. Press RANGE to step through the ranges available for the selected function.
3. Press and hold RANGE for 2 seconds to return to auto-ranging.
2.3.4 REL U
1. Press REL Uto enter and exit the Relative measurement mode. (Except Hz/Duty)
2. Keep press REL Umore than 2 seconds to enter the PCLINK mode.
2.3.5 Hz %
At V~, A, mA and μA.
1. Press it to start the frequency counter.
2. Press it again to enter duty (load factor) mode.
3. Press it again to exit the frequency counter mode.
2.3.6 MAX/MIN
This key is for measuring maximum value and minimum value.
1. Press it to enter Max/Min mode.
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4. Press and hold it for two seconds, the meter will return to normal measurement state.
(Except Hz/Duty and Capacitance)
3. FUNCTION DESCRIPTION
3.1 General Functions
3.1.1 DATA HOLD mode
Data Hold mode makes the meter stop updating the display. Enabling Data Hold function in auto-
range mode makes the meter switch to Manual ranging mode, but the full-scale range remains the
same. Data Hold function can be cancelled by changing the measurement mode, pressing RANGE
key, or push HOLD key again.
HOLD
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To enter and exit the Data Hold mode:
1. Press HOLD key (short press). Fixes the display on the current value, H is displayed.
2. A second short press returns the meter to normal mode.
3.1.2 Manual ranging and Auto-range mode
The Meter has both manual ranging and auto-range options.
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switch test points without having to reset the range.
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To enter and exit the manual range mode:
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lowest range.
NOTE: If you manually change the measurement range after entering the Data Hold modes, the
Meter exits this mode.
2. To exit the manual ranging mode, press and hold down RANGE key for two seconds. The Meter
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3.1.3 Battery Saver
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minutes.
Press the HOLD key or rotate the rotary switch to wake the meter up.
To disable the Sleep mode, hold down the SELECT key while turning the meter on.
3.1.4 Relative measurement mode
The Meter will display relative measurement in all functions except frequency.
To enter and exit the relative measurement mode:
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measurement to be based.
2. Press REL Ukey to store the measured value and activate the relative measurement mode. The
difference between the reference value and subsequent reading is displayed.
3. Press REL Ukey again return the Meter to normal operation.
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Frequency range is up to 1KHz.
3.2 Measurement Functions
3.2.1 AC and DC Voltage measurement
To avoid electrical shock and/or damage to the instrument, do not attempt to take
any voltage measurement that might exceeds 1000Vdc or 1000Vac rms.
To avoid electrical shock and/or damage to the instrument, do not apply more than
1000Vdc or 1000Vac rms between the common terminal and the earth ground.
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The Meter’s voltage ranges are 600.0mV, 6.000V, 60.00V, 600.0V and 1000V.
To measure ac or dc voltage (set up and connect the Meter as shown in Figure 3-1):
1. Set rotary switch to the DCV, ACV or AC/DC mV range.
2. Connect the black and red test leads to the COM and V terminals respectively.
3. Connect the test leads to the circuit being measured
4. Read the displayed value. The polarity of red test lead connection will be indicated when making
a DCV measurement.
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leads into input terminals.
For better accuracy when measuring the DC offset of an ac voltage, measure the ACYROWDJH¿UVW
Note the AC voltage range, then manually select a DC voltage range equal to or higher than the AC
range. This improves the accuracy of the DC measurement by ensuring that the input protection
circuits are not activated.
3.2.2 Resistance measurement
The Meter’s resistance ranges are 600.0Ω, 6.000kΩ, 60.00kΩ, 600.0kΩ, 6.000MΩand 60.00MΩ.
To measure resistance (set up the Meter as shown in ¿JXUH):
1. Set the rotary switch to Ωrange.
2. Connect the black and red test leads to the COM and VΩterminals respectively.
3. Connect the test leads to the circuit being measured and read the displayed value.
To avoid electrical shock and/or damage to the instrument, disconnect circuit
power and discharge all high-voltage capacitors before measuring resistance.
AC Voltage DC Voltage
Figure 3-1 Measuring AC and DC Voltage
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Some tips for measuring resistance:
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measurement and memory the test probe resistance in mind. This necessary to subtract for the
resistance of the test leads.
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WLRQVFDXVLQJWKHPWRFRQGXFW7RDYRLGWKLVGRQRWXVHWKH0UDQJHIRULQFLUFXLWUHVLVWDQFH
measurements.
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resistance measuring.
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range condition.
3.2.3 Capacitance measurement
The Meter’s capacitance ranges are 6.000nF, 60.00nF, 600.0nF, 6.000μF, 60 . 0 0μF, 600.0μF,
6.000mF, 60.00mF.
To measure capacitance (set up the Meter as shown in Figure 3-3):
1. Set the rotary switch to Ωrange.
2. Press the SELECT key to select capacitance Test
3. Connect the black and red test leads to the COM and terminals respectively (or you can use
capacitor test lead).
4. Connect the test leads to the capacitor being measured and read the displayed value.
Figure 3-2 Measuring Resistance
To avoid electrical shock and/or damage to the instrument, disconnect circuit
power and discharge all high-voltage capacitors before measuring capacitance.
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Some tips for measuring capacitance:
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normal for high capacitance measuring.
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Meter and leads.
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3.2.4 Continuity Check
To test for continuity (set up the Meter as shown in Figure 3-4):
1. Set the rotary switch to range.
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3. Connect the test leads to the resistance in the circuit being measured.
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NOTE: Continuity test is available
to check open/short of the circuit.
Figure 3-3
Measuring Capacitance
To avoid electrical shock and/or damage to the instrument, disconnect circuit
power and discharge all high-voltage capacitors before testing for Continuity.
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3.2.5 Diode Test
To test a diode out of a circuit (set up the Meter as shown in Figure 3-5):
1. Set the rotary switch to range.
2. Press the SELECT key to select Diode Test.
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4. For forward-bias readings on any semiconductor component, place the red test lead on the com-
ponent’s anode and place the black test lead on the component’s cathode.
5. The meter will show the approx. forward voltage of the diode.
In a circuit, a good diode (Si)
should still produce a forward
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however, the reverse-bias read-
ing can vary depending on the
resistance of other pathways
between the probe tips.
Figure 3-4
Checking the Continuity
To avoid electrical shock and/or damage to the instrument, disconnect circuit
power and discharge all high-voltage capacitors before testing diodes.
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3.2.6 Frequency and Duty Cycle measurement
The Meter can measure Frequency or Duty Cycle while making either an AC Voltage or AC Current
measurement.
To measure frequency or Duty Cycle:
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2. Read the frequency of the AC signal on the display.
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4. Read the percent of duty cycle on the display.
5. Set the rotary switch to the Hz range.
6. Insert the black and red test leads into the COM and Hz input terminals.
7. Connect the test leads tip in parallel with the circuit to be measured. And don’t touch any electrical
conductors.
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status, press it again then return to frequency measuring status.
9. Read the result directly from the display.
NOTE: In noisy environment, it is preferable to use shield cable for measuring small signal
3.2.7 Temperature measurement
Figure 3-5
Measuring Diodes
Do not measure Frequency on high voltage (>1000V) to avoid electrical shock
hazard and/or damage to the instrument.
To avoid electrical shock and/or damage to the instrument, do not apply more
than 250Vdc or 220Vac rms between the °C terminal and the COM terminal.
To avoid electrical shock, do not use this instrument when voltages at the meas-
urement surface exceed 60v dc or 24v rms. Ac.
To avoid damage or burns. Do not make temperature measurement in microwave
ovens.
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To measure temperature:
1. Set the rotary switch to °C range and the LCD will show the current environment temperature.
2. Insert ‘K’ type thermocouples into the COM terminal and °C terminal (or you can insert it by
using Multi Function Socket), Taking care to observe the correct polarity.
3. Touch the object with the thermocouple probe for measurement.
4. Read the stable reading from LCD.
3.2.8 Current measurement
The Meter’s current ranges are 600.0μA, 6000μA, 60.00mA, 600.0mA, 6.000A and 10.00A.
To measure current (set up the Meter as shown in Figure 3-6):
1. Turn off power to the circuit. Discharge all high voltage capacitors.
2. Set the rotary switch to the μA, mA or A range.
3. Press the SELECT key to select DCA or ACA measuring mode.
4. Connect the black test lead to the COM terminal and the red test leads to the mA terminal for a
maximum of 600mA. For a maximum of 10A, move the red test lead to the A terminal.
5. Break the circuit path to be tested.
7RXFKWKHEODFNSUREHWRWKHPRUHQHJDWLYHVLGHRIWKHEUHDNWRXFKWKHUHGSUREHWRWKHPRUHSRVLWLYH
side of the break. (Reversing the leads will give a negative reading, but will not damage the Meter.)
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ULJKWVLGHRIWKHGLVSOD\$P$RU$:KHQRQO\WKH¿JXUH³2/´GLVSOD\HGLWLQGLFDWHVRYHUUDQJH
situation and the higher range has to be selected.
7. Turn off power to the circuit and discharge all high voltage capacitors. Remove the Meter and
restore the circuit to normal operation.
To avoid damage to the Meter or injury if the fuse blows, never attempt an in-circuit
current measurement where the open-circuit potential to earth is greater than 1000V.
To avoid damage to the meter, check the meter’s fuse before proceeding. Use the prop-
er terminals, function, and range for your measurement. Never place the probes in par-
allel with a circuit or component when the leads are plugged into the current terminals.
Figure 3-6
Measuring Current
15
BMMTRS1
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3.2.9 NCV (Non-Contact Voltage detect)
Set rotary switch to the ACV / EF- range, Press the SELECT key to go NCV detect mode. Put
the EF-DETECT AREA close to the AC power cable or the power socket, if AC electrical voltage is
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The lowest detect voltage is around 50V 50/60Hz.
The LCD display EF, when detect the AC voltage signal, the LCD display ‘ - ’/‘ -- ’/‘ --- ’/‘ ---- ’ from
weak to strong.
This function is depending model.
3.2.10 PC Link
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measured data can be recorded, analyzed, processed and printed by PC. Before use this function,
\RXQHHGLQVWDOOWKH3&/LQNVRIWZDUHDQG86%GULYHULQ\RXU3&
Keep press REL UPRUH WKDQ VHFRQGV DQG WKH PHWHU HQWHU 3&/LQN PRGH WKH V\PERO ³3&
/,1.´ZLOODSSHDURQ/&'DQGWKHVHULDOGDWDRXWSXWIXQFWLRQLVDFWLYH
Auto power off function is disabled when PCLINK function active.
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0DNHVXUHWKHWZR,QVWDOO86%GULYHUDQG,QVWDOOVRIWZDUH581¿OHVLQWKHDWWDFKHG86%VWLFN
successfully installed before any measurement.
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3. Run the PC-LINK software, click the Start button.
4. Keep press REL UNH\PRUHWKDQVHFRQGVRQWKHPHWHUWKHV\PERO³3&/,1.´ZLOODSSHDURQ
the LCD if the serial data output function is active.
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these steps:
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&OLFNWKH+DUGZDUHWDEDQGWKHQFOLFN'HYLFH0DQDJHU
6FUROOWKURXJKWKHOLVWRILQVWDOOHGGHYLFHVWLOO\RXORFDWHWKH3RUWV&RPDQG/37HQWU\&OLFNWKH
SOXVEHVLGHWKLVHQWU\WRYLHZWKHLQVWDOOHGSRUWV,IQRHUURUVRFFXUWKH86%WR6HULDO&20
3RUW&20[ZLOODSSHDU&20[LVMXVWWKHSURSHUSRUWKHUH[LVDVSHFL¿FQXPEHU
5. Now the PC-LINK SOFT view the synchronic data or graph in the software interface.
6. To disable the PCLINK function, Keep press REL Ukey more than 2 seconds.
4. TECHNICAL SPECIFICATIONS
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Environment conditions:
1000V CAT III and 600V CAT IV
Pollution degree: 2
Altitude < 2000 m
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7HPSHUDWXUH&RHI¿FLHQW[VSHFL¿HGDFFXUDF\&&RU!&
MAX. Voltage between terminals and earth ground: 1000V AC rms or 1000V DC.
Fuse Protection: μA and mA: F 0.63A/1000V Ø [$)$9 10.3x38.
Sample Rate: 3 times/sec for digital data.
Display: 3 5/6 digits LCD display. Automatic indication of functions and symbols.
16
BMMTRS1
ENGLISH
Range selection: automatic and manual.
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/RZ EDWWHU\ LQGLFDWLRQ 7KH ³ ´ LV GLVSOD\HG ZKHQ WKH EDWWHU\ LV XQGHU WKH SURSHU RSHUDWLRQ
range.
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Power source: 9V
Battery type: 6F22.
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:HLJKWJ$SSUR[EDWWHU\LQFOXGHG
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UHODWLYHKXPLGLW\DWOHVVWKDQ
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4.2.1 Voltage
DCV
ACV
1. Frequency Range for ACV: 40Hz~400Hz.
2. Response for ACV: RMS measure, calibrated in rms of sine wave.
3. Overload Protection: 1000V dc or 1000V ac rms.
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Range Resolution Accuracy
600mV 0.1mV RIUGJGLJLWV
6V 1mV
RIUGJGLJLWV60V 10mV
600V 100mV
1000V 1V RIUGJGLJLWV
Range Resolution Accuracy
600mV 0.1mV
RIUGJGLJLWV
6V 1mV
60V 10mV
600V 100mV
750V 1V RIUGJGLJLWV
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The RMS meter has residual value within 10 counts when the test leads are shorten, but that will
not affect the accuracy of measurement.
17
BMMTRS1
ENGLISH
4.2.2 Frequency
Logic frequency (1Hz-1MHz)
Linear frequency (6HZ~10KHZ)
4.2.3 Resistance
4.2.4 Diode Test
Range Resolution Accuracy
600.0Ω0.1ΩRIUGJGLJLWV
6.000kΩ1Ω
RIUGJGLJLWV
60.00kΩ10Ω
600.0kΩ100Ω
6.000MΩ1kΩ
60.00MΩ10kΩRIUGJGLJLWV
Range Resolution Accuracy
99.99Hz 0.01 Hz
RIUGJGLJLWV
999.9Hz 0.1 Hz
9.999kHz 0.001kHz
99.99kHz 0.01kHz
999.9kHz 0.1kHz
Range Resolution Accuracy
99.99Hz 0.01 Hz
RIUGJGLJLWV999.9Hz 0.1 Hz
9.999kHz 0.001kHz
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Range Resolution Test Condition
1 V 0.001V Forward DC current approximately 1mA.
Reversed DC voltage approximately 1.5V.
18
BMMTRS1
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4.2.5 Continuity Check
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4.2.6 Capacitance
4.2.7 Temperature
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4.2.8 Current
Range Resolution Test Condition
600Ω0.1ΩOpen circuit voltage: approx. 0.5V
Range Resolution Accuracy
6nF 1pF RIUGJGLJLWV
60nF 10pF RIUGJGLJLWV
600nF 100pF
RIUGJGLJLWV
6μF 1nF
60μF 10nF
600μF 100nF
6mF 1μFRIUGJGLJLWV
Range Resolution Accuracy
-200~0°C
1°C
RIUGJ&
0~400°C RIUGJ&
400~1200°C RIUGJ&
Range Resolution Accuracy
600μA0.1μA
RIUGJGLJLWV
6000μA1μA
60mA 0.01mA
RIUGJGLJLWV
600mA 0.1mA
6A 1mA
RIUGJGLJLWV
10A 10mA
19
BMMTRS1
ACA
1. Frequency Range for ACA: 40Hz-400Hz
2. Overload protection: F 10A/1000V fuse for 10A
Overload protection: F 0.63A/1000V fuse for μA and mA ranges.
3. Maximum input current: 600mA DC or 600mA AC rms for μA and mA ranges, 10A DC or 10A AC
rms for 10A ranges.
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5. MAINTENANCE
This section provides basic maintenance information, including fuse and battery replacement
instructions.
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relevant calibration, performance test, and service information.
5.1 General Maintenance
Periodically wipe the case with a damp cloth and mild detergent. Do not use abrasives or solvents.
Dirt or moisture in the terminals can affect readings.
To clean the terminals:
Turn the meter off and remove all test leads.
Shake out any dirt that may be in the terminals.
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:RUNWKH VZDEDURXQGLQ HDFK WHUPLQDO7KHRLOLQJDJHQW LQVXODWHV WKHWHUPLQDOV IURP PRLVWXUH
related contamination.
Range Resolution Accuracy
600μA0.1μA
RIUGJGLJLWV
6000μA1μA
60mA 0.01mA
RIUGJGLJLWV
600mA 0.1mA
6A 1mA
RIUGJGLJLWV
10A 10mA
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The true RMS meter has residual value within 10 counts when the test leads are shorten, but that
will not affect the accuracy of measurement.
To avoid electrical shock or damage to the meter, do not get water inside the case.
Remove the test leads and any input signals before opening the case.
ENGLISH
20
BMMTRS1
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5.2 Fuse replacement
1. Set rotary switch to the OFF position.
2. Disconnect test leads and/or any connectors from the terminals.
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4. Take out the rear cover from the meter.
5. Remove the fuse by gently prying one end loose, then sliding the fuse out of its bracket.
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F 10A/1000V Ø10.3x38
7. Rejoin the rear cover and tighten the screws.
5.3 Battery replacement
1. Set rotary switch to the OFF position.
2. Disconnect test leads and/or any connectors from the terminals.
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4. Take out the battery cover from the meter.
5. Remove the used battery.
6. Replace with one new 9V battery (6F22).
7. Rejoin the battery cover and tighten the screws.
6. ACCESSORIES
Delivered with the multimeter:
To avoid false readings, which could lead to possible electric shock or personal
injury, replace the battery as soon as the battery indicator ( ) appears.
Before replacing the battery, disconnect test leads and/or any connectors from
any circuit under test, turn the meter off and remove test leads from the input
terminals.
8VHUVPDQXDO One piece
Test leads with clamp 10A One piece
Test leads with needle 10A One piece
"K" type Thermocouple leads One piece
86%FDEOH One piece
3&/LQNVRIWZDUHXVHUPDQXDO86%VWLFN One piece
Before replacing the fuse, disconnect test leads and/or any connectors from any circuit
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