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Benchtop Ion Meter, ORP meter, BEP-M931

  • 2 to 5 point calibration
  • Automatic end point lock
  • Accuracy: ±0.5% F.S. (monovalent), ±1% F.S. (divalent)

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Measurement Parameters

• BEP-M931: Ion concentration, mV, temperature


• Precision laboratory fluoride ion meter, equipped with a large backlit LCD display.
• 2 to 5 point calibration, including 8 concentration calibration points to choose from.
• Directly read the ion concentration value to avoid tedious conversion and calculation.
• Optional concentration units, including ppm, mg/L and mol/L.
• Automatic temperature compensation to ensure accurate measurement of the full range.
• Automatic end point lock, keep stable readings for easy browsing and recording.

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General Features

• Automatic temperature compensation ensures accurate readings over the entire range

• Auto-Read function senses and locks the measurement endpoint

• Calibration due alarm prompts user to calibrate the meter regularly

• Setup menu allows setting the number of calibration points,resolution,stability criteria, temperature unit, date and time, etc.

• Reset function automatically resumes all settings back to the factory defaults

• Expanded memory stores or recalls up to 500 data sets

• USB communication interface for data transfer and timed interval readings

Optional Ion Selective Electrodes

Ammonium (NH4+ ), bromide (br – ), cadmium (Cd2+), calcium (Ca2+), chloride (Cl- ), cupric (Cu2+),cyanide (Cn – ), fluoride (F – ),   (I – ), lead (Pb2+), nitrate (NO3- ), potassium (K),silver (Ag), sodium (Na+ ), sulphide (S2-) and ammonia (NH3)


Model BEP-M931
Range 0.001~19999 (depending on the range of ISE)
Resolution 0.001, 0.01, 0.1, 1
Accuracy ±0.5% F.S. (monovalent), ±1% F.S. (divalent)
Measurement Units ppm, mg/L, mol/L, mmol/L
Calibration Points 2 to 5 points
Calibration Solutions 0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000
mV Range ±1999.9mV
Resolution 0.1, 1mV, selectable
Accuracy ±0.2mV
Range 0~105°C/32~221°F
Resolution 0.1°C/0.1°F
Accuracy ±0.5°C/±0.9°F
Offset Calibration 1 point, reading ±10°C
Other Specifications
Temperature Compensation 0~100°C, manual or automatic
Stability Criteria Low or high
Calibration Due Alarm 1 to 31 days or off
Slope/Offset Display Yes
Hold Function Manual or auto-endpoint
Memory 500 data sets
Communication Interface USB
Connector BNC, 3.5mm jack socket
Display Custom LCD(125x100mm)
Power Requirements DC5V power adapter
Dimensions 210(L)× 188 (W)×60(H)mm
Weight 1.5kg

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    We will usually contact you within 24 hours. You could also call us (+86-531-88982330) during working hours ( 8:30 am to 5:45 pm UTC+8 Mon.~Sat. ) or use the website live chat to get prompt reply.

    Contact Info

    17th floor, Mingsheng Building, Xinluo Street, Jinan

    Phone: +86-531-88982330

    Fax: +86-531-88983691


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