elma BM2805 TRMS Multimeter Instruction Manual

Manual
Elma BM2805 TRMS Multimeter
EAN: 5706445410453

BRIEF INTRODUCTION

BM2805 is a safety Category and EMI Shielding Enhanced (CSE) version meter, and it is equipped with EMI shielding on both sides of the circuitry module to improve measurement stability under harsh electromagnetic interferences, especially in the electrical and automotive industries.

BRIEF INFORMATION ON MEASUREMENT CATEGORIES

Measurement Category IV is applicable to test and measuring circuits connected at the source of the building’s low-voltage MAINS installation. Examples are measurements on devices installed before the main fuse or circuit breaker in the building installation.
Measurement Category III is applicable to test and measuring circuits connected to the distribution part of the building’s low-voltage MAINS installation. Examples are measurements on distribution boards (including secondary electricity meters), photovoltaic panels, wiring and stationary motors in the fixed installation, and equipment for industrial use.
Measurement Category II is applicable to test and measuring circuits connected directly to utilization points (socket outlets and similar points) of the low- voltage MAINS installation. Examples are measurements on MAINS CIRCUITS of household appliances, portable TOOLS and similar equipment, and on the consumer side only of socket-outlets in the fixed installation.

SAFETY

This manual contains information and warnings that must be followed for operating the meter safely and maintaining the meter in a safe operating condition. If the meter is used in a manner not specified by the manufacturer, the protection provided by the meter may be impaired.
Observe proper safety precautions when working with voltages above 30 Vrms, 42.4 Vpeak, or 60 VDC. These voltage levels pose a potential shock hazard to the user. Disconnect the test leads from the test points before changing functions. Do not expose this product to rain or moisture. The meter is intended only for indoor use.
Keep your hands/fingers behind the hand/finger barriers (of the meter and the test probe assembly, where applicable) that indicate the limits of safe access of the hand-held parts during measurements. Inspect lead wires, connectors, and probes for damaged insulation or exposed metal periodically. If any defects are found, replace them immediately. Only use the test probe assembly provided with the meter or a UL Listed test probe assembly to the same meter ratings or better. Optional offer premium test probe assembly using silicone lead wire insulation, at agent’s discretion, is equipped with white inner insulation layers as wear indicators. Replace them immediately if any of the white layers has become visible.
The meter meets IEC/EN/BSEN/CSA_C22.2_No./UL standards of 61010-1 Ed. 3.1 and 61010-2-033 Ed. 2.0 to Measurement Categories CAT III 1000V and CAT IV 600V. The accompanied test probe assembly meets IEC/EN/BSEN/CSA_C22.2_No./UL standards of 61010-031 Ed. 2.0 to the same meter ratings or better. The 61010-031 requires exposed conductive test probe tips to be ≤ 4mm for CAT III & CAT IV (≤ 19mm for CAT II) ratings. The accompanied add-on caps (or permanent insulated tips option) have to be used for applications under CAT III & CAT IV. Refer to the category markings on your probe assemblies as well as on the add-on accessories (like detachable Caps or Alligator Clips), if any, for applicable rating changes.

INTERNATIONAL SYMBOLS

Marking of Electrical and Electronic Equipment (EEE). Do not dispose of this product as unsorted municipal waste. Contact a qualified recycler
Refer to the explanation in this Manual
 Possibility of electric shock
Earth (Ground)
Meter protected throughout by Double Insulation or Reinforced insulation
Fuse
Direct Current (DC)
Alternating Current (AC)
Three-phase Alternating Current
Application of current sensor to and removal from Hazardous Live Uninsulated Conductors is permitted.

EUROPEAN DIRECTIVES AND UK STATUTORY REQUIREMENTS
The instruments conform to EUROPEAN (CE) Low-Voltage Directive 2014/35/EU, Electromagnetic Compatibility Directive 2014/30/EU, and RoHS 2 Directive 2011/65/EU plus amendment Directive (EU) 2015/863. The instruments also conform to the UK (UKCA) Electrical Equipment (Safety) Regulations 2016, Electromagnetic Compatibility Regulations 2016, and The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012.

PRODUCT DESCRIPTION

OPERATION

Note : Before and after hazardous voltage measurements, test the voltage function on a known source such as line voltage to determine proper meter functioning

ACV; Line-level Hz
Inputs are made via the terminals COM/V. Startup defaults to ACV Function.
Press the SELECT button momentarily to select the Line-level Hz function.

Note: Input sensitivity varies automatically with the function range selected while activating the Hz function. 6V function range has the highest and the 1000V range has the lowest. When activated, the trigger voltage range will be displayed right before the Hz readings start. Press momentarily the
RANGE button can manually select another trigger voltage range. It is recommended to first measure the signal voltage level and activate the Hz function in that range to get the most appropriate trigger level. If the Hz reading becomes unstable, select lower sensitivity to avoid electrical noise. If the reading shows zero, select higher sensitivity.
DCV; VFD-ACV & Line-level VFD-Hz
Inputs are made via the terminals COM/V. Startup defaults to DCV Function. Press the SELECT button momentarily to select the subject functions in sequence.
Note: VFD-ACV and VFD-Hz are equipped with a digital low-pass filter (DSP) and are capable of handling VFD (Variable Frequency Drives) signals for fundamental V & Hz readings. It also improves ACV and Hz reading stability when being used in most electrically noisy environments.
Note: Input sensitivity varies automatically with the function range selected while activating the VFDHz function. 600V function range has the highest and the 1000V range has the lowest. When activated, the trigger voltage range will be displayed right before the Hz readings start. Press momentarily the RANGE button can manually select another trigger voltage range. It is recommended to first measure the signal voltage level and activate the Hz function in that range to get the most appropriate trigger level. If the Hz reading becomes unstable, select lower sensitivity to avoid electrical noise. If the reading shows zero, select higher sensitivity.
DCmV; ACmV; Logic-level Hz
Inputs are made via the terminals COM/V. Startup defaults to DCmV Function. Press the SELECT button momentarily to select the subject functions in sequence.

Note:

1. In ACmV function:
   1-1) ACmV startup defaults to the AC 600.0mV range. Auto-ranging is not available. Press the RANGE button momentarily to toggle to the AC 60.00mV range for extended resolution.
   1-2) Using the ACmV function in a composite signal beyond the peak levels specified in the specifications will saturate the respective ranges and produce false results. Instead, the meter shows  OL with both DC & AC icons when the peak value is exceeded in this regard. Suspected signal levels can be verified with the DCV and ACV functions.
   1-3) To measure ACmV signals coupled merely in AC nature when required, it is recommended to add in series an appropriate DC blocking capacitor in the measurement loop.
   Ω Resistance; BeepLit™  Continuity; & BeepLit™ Diode
   Inputs are made via the test lead terminals COM/Ω . Startup defaults to Ω Resistance. Press the SELECT button momentarily to select the subject functions in sequence.

BeepLit™ Continuity
This function is having improved convenience for checking wiring connections and operation of switches. The resistance threshold is being used. A continuous beep sound together with display backlight flashing indicates a complete wire. Such audible and visible indications improve continuity readabilities in noisy working environments.

BeepLit™ Diode

• Reading indication: Forward voltage drop (forward-biased) for a good silicon diode is between 0.400V to 0.900V. A higher reading indicates a leaky diode (defective). A zero reading indicates a shorted diode (defective). An over-range display indicates an open diode (defective). Reverse the test leads connections (reverse biased) across the diode. The digital display shows an over-range if the diode is good. Any other readings indicate the diode is resistive or shorted (defective).

• BeepPass ™ indication (Short-beep):
  When the display reading drops across 0.850V, the BeepPass ™ indication gives a short beep sound to signal a Good forward voltage drop of common diodes.

• BeepLit ™ indication (Continuity):
  If the reading further drops below 0.100V, the BeepLit ™ indication gives a continuous beep sound together with the display backlight flashing to indicate a shorted diode or a complete wire. It is similar to that of the resistive BeepLit ™ Continuity function but this BeepLit ™ indication, instead, is based on the voltage threshold to indicate continuity.
  Note: Using Resistance, BeepLit ™ Continuity, or BeepLit ™ Diode function in a live circuit will produce false results and may damage the meter. In many cases, the component(s) under test must be disconnected from the circuit to obtain an accurate measurement reading.

DCμA; ACμA; ACμA-Hz
Inputs are made via the test lead terminals COM/μA mA. Startup defaults to DCμA. Press the SELECT button momentarily to select the subject functions in sequence.

DCmA; ACmA; ACmA-Hz
Inputs are made via the test lead terminals COM/μA mA. Startup defaults to DCmA. Press the SELECT button momentarily to select the subject functions in sequence.

DCA; ACA; ACA-Hz
Inputs are made via the test lead terminals COM/A. Startup defaults to DCA. Press the SELECT button momentarily to select the subject functions in sequence.

(nF & μF) Capacitance
Inputs are made via the test lead terminals COM/ . Turn the rotary switch to select measurements in nF or in μF. There are 3 auto-ranges (20.00, 200.0, and 2000) in each unit position making it 6 ranges altogether in the capacitance function.

Manual-ranging Override (Voltage, Current, and Ω functions only)
Press the RANGE button momentarily to select manual-ranging. The meter will remain in the range it
was in; the LCD turns off. Press the button momentarily again to select the next range in sequence. Press and hold the button for 1 second or more to resume auto-ranging.

HOLD (with Hold-alert™ Warning)
HOLD feature freezes the display reading and stops further measurements for later views. LCD “ ” turns on flashing, and the frozen reading also flashes; it is the Hold-alert ™ feature to warn the user of a displaying reading that is inactive. Press the HOLD button momentarily to toggle the HOLD feature.
MAX HOLD
Press the “MAX ” button for one second or more to activate MAX HOLD feature. LCD MAX & turn on; Auto-Power-Off is disabled automatically; the meter beeps when a new MAX (maximum) reading is updated. When activated, the measuring speed (reading update rate) will be boosted to 40 times per second to capture RMS reading surges in the Voltage & Current functions; the speed remains unchanged in all other functions. Press the button for 1 second or more to exit.

Relative mode
Relative mode allows the user to offset the meter consecutive measurements with the main-display displaying reading as the reference value. LCD “ ” turns on. Press the button momentarily to toggle Relative mode.

LCD Backlight and Auto-Backlight-Off (ABO)
Press the SELECT button for 1 second or more to toggle the LCD backlight. The ABO mode turns the LCD backlight off automatically after around 32 minutes of backlight activation to extend battery life.
See Power-on Options section for disabling ABO.

Intelligent Auto-Power-Off (iAPO)
The iAPO mode turns the meter off automatically to extend battery life after idling around 32 minutes of no specified activities, where applicable, below:

1. Rotary switch or push button operation
2. Significant measuring reading of above 8.5% of its range
3. Non-over-range reading for Resistance, Continuity, or Diode function
4. Non-zero reading for Hz function

In other words, the meter will intelligently reset the iAPO mode when it is under normal measurements. To wake the meter up from iAPO, press the SELECT or HOLD button momentarily, or turn the rotary switch OFF and then back on. Always turn the rotary  switch to the OFF position when the meter is not in use.
Power-on Options
◎ Disabling both iAPO and ABO
Press and hold the SELECT button while powering on the meter to disable both iAPO and ABO features temporarily during the power-on session. The LCD will display “dAPO” to confirm selection before the SELECT button is released.
◎ Shortening APO idling time for inspection
Press and hold the HOLD button while powering on the meter can shorten the iAPO idling time to about 8 seconds temporarily during the power-on session. This mode is designed mainly for production verification use.
◎ Showing all LCD segments for inspection
Press and hold the RANGE or Relative button while powering on the meter can hold and show all LCD segments before the button is released. This mode is designed mainly for production verification use.

MAINTENANCE

Note: To avoid electrical shock, disconnect the meter from any circuit, remove the test leads from the input jacks, and turn OFF the meter before opening the case. Do not operate with open case.
Trouble Shooting
If the instrument fails to operate, check batteries and test leads etc., and replace as necessary.
Double-check the operating procedure as described in this user’s manual. Refer to the LIMITED WARRANTY section for obtaining calibration, repairing, or warranty service.
Accuracy and Calibration
Accuracy is specified for a period of one year after calibration. Periodic calibration at intervals of one year is recommended to maintain meter accuracy.
Cleaning and Storage
Periodically wipe the meter and the test probe assembly with a damp cloth and mild detergent. Do not use abrasives or solvents. Allow drying completely before operating. If the meter is not to be used for periods of longer than 60 days, remove the batteries and store them separately.

Battery and Fuse replacement

Battery use:
Standard 1.5V AAA Size (IEC R03) battery X 2
Fuses use:
Fuse (F1) for μA-mA current input: 0.63A/1000V ac & dc, IR 10kA, F fuse; or better. Dimensions: 6 x 32 mm
Fuse (F2) for A current input: 11A/1000V ac & dc, IR 20kA, F fuse; or better. Dimensions: 10 x 38 mm

Battery replacement
Loosen the 2 screws from the battery access door of the case bottom.
Lift the battery access door and thus the battery compartment up.
Replace the batteries.
Put back the battery access door and re-fasten the 2 screws.

Fuse replacement
Remove the battery access door as described above.
Loosen the 4 screws from the case bottom.
Lift the end of the case bottom nearest the input jacks until it unsnaps from the case top.
Replace the blown fuse(s) and/or the batteries of the splash-proof version.
Put back the case bottom; ensure that all the gaskets are properly seated and the two snaps on the case top (near the LCD side) are engaged.
Re-fasten the 4 screws.
Put back the battery access door and re-fasten the 2 screws.

GENERAL SPECIFICATIONS

Display: 3-5/6 digits 6,000 counts
Update Rate: 5 per second nominal
Operating Temperature: -10°C to 50°C
Relative Humidity: Maximum relative humidity 80% for temperature up to 31°C decreasing linearly to 50% relative humidity at 50°C.
Altitude: Operating below 2000m
Storage Temperature: -20°C ~ 60°C, < 80% R.H. (with battery removed)
Temperature Coefficient: Nominal 0.15 x (specified accuracy)/ °C @ (-10°C ~ 18°C or 28°C ~ 50°C), or otherwise specified.
Sensing: True RMS sensing
Pollution Degree: 2
Safety: Certified per IEC/UL/EN61010-1 Ed. 3.1, IEC/UL/EN61010-2-033 Ed. 2.0, IEC/UL/EN61010-
031 Ed. 2.0 and the corresponding CAN/CSA-C22.2 regulations to Measurement Categories: CAT III 1000V and CAT IV 600V
Transient Protection: 8.0kV (1.2/50Ωs surge)
E.M.C.: Meets EN61326-1:2013
mV, Diode, Ohm, & Temperature; in an RF field of 1V/m: Total Accuracy = Specified Accuracy + 100 digits
Other functions; in an RF field of 3V/m: Total Accuracy = Specified Accuracy + 100 digits
Overload Protection:
μA & mA: 0.63A/1000V DC/AC rms, IR 10kA, F fuse; or better
A: 11A/1000V DC/AC rms, IR 20kA, F fuse; or better
V: 1100V DC/AC rms
mV, Ohm, & others: 1000V DC/AC rms
Low Battery: Below approx. 2.5V
Power Supply: 1.5V AAA Size battery X 2
Power Consumption (typical): 3.2mA
iAPO Consumption (typical): 10μA
iAPO Timing: Idle for approx. 32 minutes
Accessories: Test lead set, User’s manual
Special Features:
VFD-ACV & VFD-Hz; Hi/Lo
Display Hold w/Hold-alert ™ warning;
MAX Hold; BeepLit ™ Diode w/BeepPass ™ indication; BeepLit ™ Continuity;
Relative-Zero mode; Backlighted LCD display; BeepJack ™ audible & visible input warning.

Electrical Specification

Accuracy is given as ± (% of reading digits + number of digits) or otherwise specified @ 23°C ± 5°C AC Voltage & Current accuracies are specified from 1 % to 100 % of range or otherwise specified.
Maximum Crest Factor <2:1 at full scale & <4:1 at half scale, and with signal component frequencies limited to the specified bandwidth of the AC functions for non-sinusoidal waveforms.

AC-Voltage

50Hz ~ 60Hz
60.00mV 1), 600.0mV 2)| 1.0% + 3d
6.000V, 60.00V, 600.0V, 1000V| 0.7% + 3d
45Hz ~ 500Hz
60.00mV 1), 600.0mV 2)| 2.0% + 3d
6.000V, 60.00V, 600.0V, 1000V| 2.0% + 3d
500Hz ~ 1kHz
60.00mV 1), 600.0mV 2)| 2.0% + 3d
6.000V, 60.00V, 600.0V, 1000V| Unspecified

Input Impedance: 10MΩ, 20pF nominal

1. Signal peak absolute values, including DC bias, less than 130mVpeak
2. Signal peak absolute values, including DC bias, less than 1300mVpeak

VFD-ACV (with Low Pass Filter)

10 ~ 100Hz
600.0V, 1000V| 1.0% + 3d
100 ~ 400Hz
600.0V, 1000V| 10.0% + 3d 2)

1. Not specified for fundamental frequency > 400Hz
2. Accuracy linearly decreases from 1% + 3d @100Hz to 10% + 3d @400Hz

DC Voltage

Input Impedance: 10M Ω, 20pF nominal

Ohm

1. Open Circuit Voltage: 1.6VDC typical.
2. Constant Test Current: 0.2μA typical.
3. Constant Test Current: 0.02μA typical.
4. 5%+20d @ >30MΩ

BeepLit™ Continuity Tester
Continuity Threshold: Between 30Ω and 480Ω
Continuity ON Response Time: <15ms
Audible Indication: Beep sound
Visible Indication: LCD Backlight

Capacitance

20.00mF, 200.0mF, 2000mF

Accuracies with film capacitor or better

BeepLit™ Diode Tester

Range| Accuracy| Test Current (Typical)| Open Circuit Voltage
---|---|---|---
3.0000V| 0.9% + 2d| 0.3mA| < 3.2 VDC

BeepPass ™ Indication (Short-beep): Drop across 0.850V
BeepLit ™ Indication (Continuity) Threshold: < 0.100V
Audible Indication: Beep sound
Visible Indication: LCD Backlight

DC Current

1. 10A continuous, >10A to 20A for 30 seconds max with 5 minutes cool down interval

AC Current

50Hz ~ 500Hz
600.0mA, 6000mA| 1.5% + 3d| 0.1mV/mA
60.00mA, 600.0mA| 1.0% + 5d| 3.0mV/mA
6.000A, 10.00A 1)| 25mV/A

1. 10A continuous, >10A to 20A for 30 seconds max with 5 minutes cool down interval

Logic Frequency

Accuracy: 0.03% + 4d

Line Frequency

Accuracy: 0.03% + 4d

LIMITED WARRANTY

Elma Instruments warrants to the original product purchaser that each product it manufactures will be free from defects in material and workmanship under normal use and service within a period of one year from the date of purchase. Elma Instruments warranty does not apply to accessories, fuses, fusible resistors, spark gaps, varistors, batteries, or any product which, in Elma Instruments opinion, has been misused, altered, neglected, or damaged by accident or abnormal conditions of operation or handling.  To obtain warranty service, contact Elma Instruments or send the product, with proof of purchase and description of the difficulty, postage and insurance prepaid, Elma Instruments.
Elma Instruments assumes no risk for damage in transit.
Elma Instruments will, at its option, repair or replace the defective product free of charge. However, if Elma Instruments determines that the failure was caused by misused, altered, neglected, or damaged by accident or abnormal conditions of operation or handling, you will be billed for the repair.
THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OR MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE. Elma Instruments WILL NOT BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Elma Instruments A/S
Ryttermarken 2
DK-3520 Farum
T: +45 7022 1000
[email protected]
www.elma.dk| Elma Instruments AS
Garver Ytteborgsvei 83
N-0977 Oslo
T: +47 22 10 4270
[email protected]
www.elma-instruments.no| Elma Instruments AB
Pepparvagen 27
S-123 56 Farsta
T: +46 (0)8-447 57 70
[email protected]
www.elma-instruments.se
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