Brymen BM857s User Manual
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Brymen BM857s User Manual

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USER'S
MANUAL
BM857s
BM859s

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Summary of Contents for Brymen BM857s

  • Page 1 USER'S MANUAL BM857s BM859s...
  • Page 2 1) 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.

  • Page 3: International Symbols

    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)

  • Page 4: Product Description

    3) PRODUCT DESCRIPTION Panel Illustration 1) 5-4/5 digits 500000 counts LCD display 2) Push-buttons for special functions & features 3) Selector to turn the Power On or Off and Select a function 4) Input Jack for 10A (+) (20A for 30sec) current, and for T2 (-) function 5) Input Jack (+) for all functions EXCEPT current...
  • Page 5 AC Voltage, DC Voltage, DC+AC Voltage, & Hz Line Level Frequency In AC Voltage, press SELECT button momentarily to toggle between AC and dBm. In DC Voltage, press SELECT button momentarily to toggle between DC, and DC+AC. In mV Voltage, press SELECT button momentarily to select DC, AC, or DC+AC. The new settings will be saved automatically to the non-volatile memory as power up default.
  • Page 6 Note: Line Level Frequency measuring function input sensitivity varies automatically with voltage (or current) function range selected. The lower the measuring range the higher the sensitivity. That is, mV function has the highest and the 1000V range has the lowest as in voltage function ranges. It is recommended to first measure the signal voltage (or current) level then activate the Hz function in that voltage (or current) range to automatically get the most appropriate trigger level.
  • Page 7 Note: Unlike the Line Level Frequency measuring function as previously stated, this Logic Level Frequency function is set only at the highest input sensitivity for measuring digital type electronic signals. T1-T2 Dual Channels Temperature function (Model 859s only) Press SELECT button momentarily to toggle between C and F readings, and the new setting will be saved automatically in the non-volatile memory as power up default.
  • Page 8  Resistance, Continuity functions Press SELECT button momentarily to toggle between  and Continuity functions. The new setting will be saved automatically to the non-volatile memory as power up default. Continuity function is convenient for checking wiring connections and operation of switches.
  • Page 9 NOTE Using resistance or continuity function in a live circuit will produce false results and may damage the meter. In many cases the suspected component must be disconnected from the circuit to obtain an accurate reading. Capacitance, Diode test function Press SELECT button momentarily to toggle between Capacitance and Diode test functions.
  • Page 10 A, mA, A, and %4-20mA Current functions Insert the red test lead into the correct A/mA or A input jack. Press SELECT button momentarily to select DC, AC, or DC+AC. The new settings will be saved automatically to the non-volatile memory as power up default. In DC mA function, neither in AC nor in DC+AC, press and hold the %4-20mA ( Hz) button for 1 second or more to display the current digital data in terms of loop current percentage (%) value.
  • Page 11 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 + BS85X software CD + BUA-2303 USB-to-Serial adaptor) is required to connect the meter to the PC computer.

  • Page 12: Maintenance Note

    Press the SELECT button for 1 second or more to turn on or off the display backlight function. It will also be turned off automatically after 30 seconds to extend battery life. Manual or Auto-ranging Press the RANGE button momentarily to select manual-ranging mode, and the meter will remain in the range it was in, the LCD annunciator turns off.
  • Page 13 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. Install only the same type of fuse or equivalent Calibration Periodic calibration at intervals of one year is recommended to maintain meter accuracy.
  • Page 14 Battery and Fuse replacement Battery use: 9V alkaline battery NEDA1604A, JIS6AM6 or IEC6LF22 Fuse (FS1) for AmA current input: 0.44A/1000V, IR 10kA or better, F fuse; Dimension: 10 x 38mm Fuse (FS2) for A current input: 11A/1000V, IR 20kA or better, F fuse; Dimension: 10 x 38mm Battery replacement for models with battery access door: Loosen the 2 screws from the battery access door of the case bottom.

  • Page 15: Specifications General Specifications

    6) SPECIFICATIONS GENERAL SPECIFICATIONS Display: 4-4/5 digits 50,000 counts. Selectable stable mode 5-4/5 digits 500,000 counts for DC Voltage, & 6 digits 999,999 counts for Hz Polarity: Automatic Update Rate: 4-4/5 digits fast mode: 5 per second nominal; 5-4/5 digits stable mode: 1.25 per second nominal; 42 Segments Bar graph: 60 per second max Operating Temperature: 0C to 45C Relative Humidity: Maximum relative humidity 80% for temperature up to 31C decreasing...

  • Page 16: Electrical Specifications

    Accessories: Test leads (pair), holster, battery installed, user's manual, Bkp60 banana plug K-type thermocouple x 1 (Model 859s only) Optional Accessories: BRUA-85Xa PC interface kit (BC-85Xa RS232 optical adapter cable + Bs85X software CD + BUA-2303 USB-to-Serial adaptor), Bkb32 banana pins to K-type socket plug adapter Special Features: Record MAX, MIN, MAX-MIN readings.
  • Page 17 DC Voltage AC & AC+DC Voltage RANGE 859s 857s RANGE 859s 857s Accuracy Accuracy* 20Hz -- 45Hz 500.00 mV, 0.02% + 2d 0.03% + 2d 5.0000V, 500.00mV, 50.000V 5.0000V, 1.5% + 60d 500.00V 0.04%+2d 0.05% + 2d 50.000V Unspec'd 1000.0V 0.05%+ 2d 0.1%+2d 500.00V,...
  • Page 18 AC & AC+DC Current CMRR: >80dB @ DC to 60Hz, Rs=1k RANGE 859s 857s Burden Input Impedance: 10M, 30pF nominal Voltage Accuracy (80pF nominal for 500mV range) Residual reading less than 50 digits with 50Hz -- 60Hz test leads shorted. 500.00A 0.15mV/A 5000.0A...
  • Page 19 DC Loop Current %4--20mA 4mA = 0% (zero) 20mA = 100% (span) Resolution: 0.01% Accuracy:  25d T1-T2 Dual Temperature (Model 859s only) RANGE Accuracy -50.0C to 1000.0C 0.3%+1C -58.0F to 1832.0F 0.3%+2F Thermocouple range & accuracy not included Hz Line Level Frequency Function Sensitivity Range...

  • Page 20: Limited Warranty

    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.

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