Brymen BM811s User Manual Download Page 2

 

This manual is applicable to all meter protection versions or otherwise specified 

 

1) SAFETY 
Terms in this manual 

WARNING

   identifies conditions and actions that could result in serious injury or even 

death to the user. 

CAUTION 

identifies conditions and actions that could cause damage or malfunction 
in the instrument. 

 
This manual contains information and warnings that must be followed for operating the 
instrument safely and maintaining the instrument in a safe operating condition. If the 
instrument  is  used  in  a  manner  not  specified  by  the  manufacturer,  the  protection 
provided by the instrument may be impaired. The meter is intended only for indoor use. 

 
The  meter  protection  rating,  against  the  users,  is  double  insulation  per 

IEC/UL/EN61010-1 Ed. 3.0

IEC/EN61010-2-030 Ed. 1.0

IEC/EN61010-2-033 Ed. 1.0, 

IEC/UL/EN61010-031  Ed.  1.1 

and 

CAN/CSA-C22.2  No.  61010-1-12  Ed.  3.0

  to 

Category III 1000 Volts AC & DC and Category IV 600 Volts AC & DC. 

 

Terminals (to COM) measurement category: 

V / A / mA

A :  Category III 1000 Volts AC & DC, and Category IV 600 Volts AC & DC. 

 

Per IEC61010-1 Measurement Category 
Measurement Category IV (CAT IV)

 is for measurements performed at the source of 

the low-voltage installation. Examples are electricity meters and measurements on 
primary overcurrent protection devices and ripple control units. 
 

Measurement Category III (CAT III)

 is for measurements performed in the building 

installation. Examples are measurements on distribution boards, circuit- breakers, 
wiring, including cables, bus-bars, junction boxes, switches, socket-outlets in the fixed 
installation, and equipment for industrial use and some other equipment, for example, 
stationary motors with permanent connection to the fixed installation. 

 
Measurement Category II (CAT II)

 is for measurements performed on circuits directly 

connected to the low voltage installation. Examples are measurements on household 
appliances, portable tools and similar equipment. 

 

Summary of Contents for BM811s

Page 1: ...USER S MANUAL BM811s BM812s BM815s BM817s ...

Page 2: ... 1 12 Ed 3 0 to Category III 1000 Volts AC DC and Category IV 600 Volts AC DC Terminals to COM measurement category V A mA A Category III 1000 Volts AC DC and Category IV 600 Volts AC DC Per IEC61010 1 Measurement Category Measurement Category IV CAT IV is for measurements performed at the source of the low voltage installation Examples are electricity meters and measurements on primary overcurren...

Page 3: ...the open circuit voltage is above the protection fuse voltage rating Suspected open circuit voltage should be checked with voltage functions Never attempt a voltage measurement with the test lead inserted into the A mA or A input jack Only replace the blown fuse with the proper rating as specified in this manual Only use the test lead provided with the equipment or UL Listed Probe Assembly rated C...

Page 4: ... functions features 3 Selector to turn the Power On or Off and Select a function 4 Input Jack for 10A 20A for 30sec current function 5 Input Jack for all functions EXCEPT current A mA A functions 6 Common Ground reference Input Jack for all functions 7 Input Jack for milli amp and micro amp current functions ...

Page 5: ...ately to the effective RMS value regardless of the waveforms such as square sawtooth triangle pulse trains spikes as well as distorted waveforms with the presence of harmonics Harmonics may cause 1 Overheated transformers generators and motors to burn out faster than normal 2 Circuit breakers to trip prematurely 3 Fuses to blow 4 Neutrals to overheat due to the triplen harmonics present on the neu...

Page 6: ...C Voltage Hz Frequency functions mV function defaults at DC Press SELECT button momentarily to select AC Press the Hz push button momentarily to activate or to exit Hz Note Input sensitivity varies automatically with function range selected before activating the Hz function mV function has the highest 300mV and the 1000V range has the lowest 300V It is recommended to first measure the signal volta...

Page 7: ... A reading higher than that indicates a leaky diode defective A zero reading indicates a shorted diode defective An OL indicates an open diode defective Reverse the test leads connections reverse biased across the diode The digital display shows OL if the diode is good Any other readings indicate the diode is resistive or shorted defective Temperature function Models 815s 817s only Press SELECT bu...

Page 8: ... the banana plug K type temperature bead probe Bkp60 with correct polarities You can also use a plug adapter Bkb32 Optional purchase with banana pins to K type socket to adapt other standard K type mini plug temperature probes ...

Page 9: ...an accurate reading Auto leads resistance calibration When entering the 50 range manually by RANGE button for high precision low resistance measurement this feature will prompt you to short the inputs for calibration The display shows Shrt Simply short the leads for about 3 seconds until the display shows zero then the resistance in the leads and in the internal protection circuitry of the meter i...

Page 10: ...tage To avoid exceeding the voltage rating of the protection fuse s accidentally always consider the phase to phase voltage as the working voltage for the protection fuse s PC COMM computer interface capabilities The instrument equips with an optical isolated interface port at the meter back for data communication Optional purchase PC interface kit BRUA 85Xa BC 85Xa RS232C optical adapter cable Bs...

Page 11: ...MIN mode Auto Power Off feature will be disabled automatically in this mode 0 8ms CREST capture mode Models 815s 817s only Press CREST button momentarily to activate CREST Instantaneous Peak Hold mode to capture voltage or current signal duration as short as 0 8ms This mode is available in DCV ACV DCA ACA functions The LCD annunciators C MAX turn on The meter beeps when new maximum or minimum read...

Page 12: ...e Hold The hold function freezes the display for later view Press the HOLD button momentarily to activate or to exit the hold function Zoom 5x analog pointer Models 815s 817s only The Zoom mode analog pointer magnifies up to 5 times the regular analog bar graph resolution to show minute signal changes with a single analog pointer It is virtually equivalent to the bar graph resolution of 5 X 50 250...

Page 13: ...lect manual ranging and the meter will remain in the range it was in the LCD annunciator turns off Press the button momentarily again to step through the ranges Press and hold the button for 1 second or more to resume auto ranging Note Manual ranging feature is not available in Hz function Beep Jack Input Warning The meter beeps as well as displays InEr to warn the user against possible damage to ...

Page 14: ... with open case Install only the same type of fuse or equivalent Calibration Periodic calibration at intervals of one year is recommended to maintain meter accuracy Accuracy is specified for a period of one year after calibration If self diagnostic message rE O is being displayed while powering on the meter is re organizing internal parameters Do not switch off the meter then and it will be back t...

Page 15: ... NEDA1604A JIS6AM6 or IEC6LF22 Fuses Fuse FS1 for AmA current input 0 44A 1000V IR 10kA or better F fuse Dimension 10 x 38 mm Fuse FS2 for A current input 11A 1000V IR 20kA or better F fuse Dimension 10 x 38 mm Battery replacement for models with battery access door Loosen the 2 screws from the battery access door of the case bottom Lift the battery access door and thus the battery compartment up ...

Page 16: ...epaid to BRYMEN TECHNOLOGY CORPORATION BRYMEN assumes no risk for damage in transit BRYMEN will at its option repair or replace the defective product free of charge However if BRYMEN 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...

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