Water Hardness Meters

A131 Laboratory Water Hardness Meter

Multiparameter water hardness meter, 2 to 5 points calibration, setup menu contains 15 options, the meter is suitable for measuring ion concentration and water hardness, accuracy: 1% F.S.

Water Hardness Mode:
• Multiparameter water hardness meter is equipped with a 7 inch TFT display.
• 2 to 5 points calibration from low to high concentrations.
• Selectable measurement units (german degree, english degree, french degree, mmol/L and
  mg/L) are used for professional water hardness measurements.

Ion Concentration Mode:
• 2 to 5 points calibration, including the selection of 8 concentration points.
• Electrode management is capable of storing and recalling up to 3 electrode slopes.
• Selectable ion measurement methods (direct reading, known addition, known subtraction,
  sample addition, sample subtraction) and concentration units (ppm, mg/L, mol/L, mmol/L).

Water Hardness Meter

Other Features:
• Automatic temperature compensation ensures accurate readings over the entire range.
• Auto-read function senses and locks the measurement endpoint.
• Timed interval readings send the measurement data to a PC or printer.
• Limit Alarm automatically alerts when reading exceeds the specified range.
• Calibration due alarm reminds the user to calibrate the meter regularly.
• Calibration log shows the date, time, calibration points, offset and electrode slope.
• Password protection prevents the unauthorized calibration and settings.
• Expanded memory stores or recalls up to 1000 data sets.
• Reset function automatically resumes all settings back to the factory defaults.

   Model


A131

   Water Hardness



   Range (Concentration)


0.05 to 200 mmol/L

   Range (German Degree)


0 to 1120°dH

   Range (English Degree)


0 to 1404°e

   Range (French Degree)


0 to 2000°fH

   Range (Ca²)


0 to 8000 mg/L

   Range (CaCO)


0 to 19999 mg/L

   Range (CaO)


0 to 11200 mg/L

   Resolution


0.001, 0.01, 0.1, 1, automatic

   Accuracy


±1% F.S.

   Calibration


2 to 5 points

   Calibration Solutions


0.01 / 0.1 / 1 / 10 / 100 mmol/L

   Ion Concentration



   Range


0.001 to 30000 (depending on the range of ISE)

   Resolution


0.001, 0.01, 0.1, 1, automatic

   Accuracy


±0.5% F.S. (monovalent), ±1% F.S. (divalent)

   Calibration


2 to 5 points

   Calibration Solutions


0.001 / 0.01 / 0.1 / 1 / 10 / 100 / 1000 / 10000

   Measurement Units


ppm, mg/L, mol/L, mmol/L

   Measurement Methods


Direct reading, known addition, known subtraction,



sample addition, sample subtraction

   Electrode Management


1 to 3

   mV



   Range


-2000.0 to 2000.0 mV

   Resolution


0.1 mV

   Accuracy


±0.2 mV

   Temperature



   Range


0 to 105°C / 32 to 221°F

   Resolution


0.1°C/°F

   Accuracy


±0.5°C / ±0.9°F

   Calibration


1 point

   Calibration Range


Reading ±10°C/°F

   Other Specifications



   Temperature Compensation


0 to 100°C / 32 to 212°F, manual or automatic

   Stability Criteria


Standard / High-accuracy

   Measurement Modes


Continuous / Auto-read measurement endpoint

   Timed Interval Readings


10 / 30 / 60 seconds, 10 / 30 minutes or off

   Calibration Due Alarm


1 to 31 days or off

   High/Low Limit Alarm


Selectable

   Password Protection


4 digits

   Memory


Stores up to 1000 data sets

   Output


USB communication interface

   Connector


BNC, 3.5 mm jack socket

   Display


7 inch TFT LCD

   Power Supply


12V DC power adapter

   Dimensions


240 × 220 × 80 mm

   Weight


1.7 kg

   Ordering Code

Meter Includes

   A131-WH

   

ISE-WH water hardness electrode

TP-10K temperature probe

Water hardness standard solutions 10, 100 mmol/L

Ionic strength adjuster

12V DC power adapter

Items Description
ISE-WH Water Hardness Electrode Range: 0.05 to 200 mmol/L
Ionic Strength Adjusters For adjusting the pH and background ionic strength
USB Cable For transferring data or connecting power adapter
Thermal Printer For printing the measurement data

   Ordering Code

Dimensions and Weights

   A131-WH

30 × 25 × 20 cm, 2 kg