Brymen BM811s User Manual Download Page 11

 

10 

50ms MAX/MIN at fast 20/s measurement mode (Models 

815s & 817s

 only) 

Press 

MAX/MIN

  button  momentarily  to  activate  MAX/MIN  recording  mode.  The  LCD 

annunciators  “MAX  MIN”

 

turn  on,  and  the  reading  update  rate  will  be  increased  to 

20/second.  The  meter  beeps  when  new  maximum  or  minimum  reading  is  updated.  
Press the button momentarily to read throughout the Maximum (MAX), Minimum (MIN), 
and Maximum minus Minimum (MAX-MIN) readings. Press the button for 1 second or 
more to exit MAX/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  reading  is  updated. Press  the  button 
momentarily to read throughout the Maximum (MAX), Minimum (MIN), and Maximum 
minus Minimum (MAX-MIN)  readings.  Press  the  button  for  1  second  or  more  to  exit 
CREST  capture  mode.  Auto  Power  Off  feature  will  be  disabled  automatically  in  this 
mode. 
 

 

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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