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Portable pH/Ion/ORP Meter, BEP-M320

  • For measuring the pH, ORP and ion concentration
  • PH Accuracy: 0.002pH
  • Ion Accuracy: ±0.5% FS.(monovalent),±1% FS.(divalent)
  • ORP Accuracy: ±0.2mV

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Measurement Parameters

• BEP-M320: pH, mV, relative mV, ion concentration, temperature



• 1 to 5 points calibration with automatic recognition for USA, NIST and DIN buffers

• Automatic electrode diagnosis shows the pH slope and offset


• 1 point offset calibration allows to adjust the displayed value to a known standard

• Relative and absolute millivolt modes ensure the reliable ORP measurements

Ion Concentration

• 2 to 5 points calibration, including the 8 concentration points that can be selected

• Direct ion concentration readout simplifies the measurement process

• Automatic electrode diagnosis shows the calibration points and slopes

Other 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

• Auto-Power Off effectively conserves battery life

• Setup menu allows to set 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 is easy to transfer data to PC

• Multi-mode power scheme (batteries, power adapter and USB port) ensures that using

Optional Ion Selective Electrodes

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



Model BEP-M320
PH Range -2.000-20.0OOpH
Resolution 0.001,0.01,0.1pH,selectable
Accuracy 0.002pH
Calibration Points 1 to 5 points
pH Buffer Options USA,NIST,DIN,2 custom buffers
Ion Range 0.001-19999(depending on the range of ISE)
Resolution 0.001,0.01,0.1,1
Accuracy ±0.5% FS.(monovalent),±1% FS.(divalent)
Measurement Units ppm, mg/L,mol/L, mmol/L
Calibration Points 2to 5 points
Calibration Solutions 0.001,0.01,0.1,1,10,100,1000,10000
ORP mV Range ±1999.9mV
Relative mV Range ±1999.9mV
Resolution 0.1, 1mV, selectable
Accuracy ±0.2mV
Calibration Points 1 point
Temperature 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
Auto-Off 10, 20 or 30 minutes after the last key is pressed
Memory 500 data sets
Communication Interface USB
Connector BNC,3.5mm jack socket
Display Custom LCD (80×60mm)
Power Requirements 3× 1.5V AA batteries or DC5V power adapter
Battery Life Approximately 150 hours (Turn off the backlight)
Dimensions 170(L)×85(W)×30(H)mm
Weight 300g

Accessories & Package

Accessories & Package 



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    Contact Info

    Rm. 2014, Bldg. 3, Ligaoguojihuayuan, No. 1222, West Aoti Road, Lixia District, Jinan, Shandong

    Phone: +86-531-88982330

    Fax: +86-531-88983691


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