Instruction Manual
Instruction Manual

Mi170 Autoranging Conductivity / TDS / NaCl / Temperature Laboratory Bench Meter

Mi170 measures 4 different parameters - EC, TDS (Total Dissolved Solids), percentage of NaCl and temperature in a variety of ranges.

The auto-ranging feature for EC and TDS measurements automatically sets the resolution suitable to the tested sample. All measurements can be temperature compensated at 20 or 25°C and the compensation coefficient is selectable by the user.

The automatic temperature compensation can also be disabled for measuring the actual conductivity value. The stability indicator on the LCD ensures accuracy.

Conductivity readings are performed with the 4-ring probe supplied with the meter. The GLP feature allows users to store and recall data on system status.
PC compatible through an RS232 or USB port.

More accurate readings with the 4-RING MA814DB/1 EC / TDS / NaCl and Temperature probe.
Conductivity readings are performed by applying an alternate current to the 4-ring probe which creates a variable voltage depending on the conductivity.
Rear Connector Panel layout
Communication to the PC is done via opto isolated USB and RS232 ports.
EC Range 0.00 to 29.99 µS/cm; 30.0 to 299.9 µS/cm; 300 to 2999 µS/cm; 3.00 to 29.99 mS/cm; 30.0 to 200.0 mS/cm; up to 500.0 mS/cm actual Conductivity*
TDS Range 0.00 to 14.99 mg/l (ppm); 15.0 to 149.9 mg/l (ppm); 150 to 1499 mg/l (ppm); 1.5 to 14.99 g/l (ppt); 15.0 to 100.0 g/l (ppt); up to 400.0 g/l actual TDS* (with 0.80 factor)
NaCl Range 0.0 to 400.0%
Temp Range -20.0 to 120.0°C / -4.0 to 248.0°F
EC Resolution 0.01 µS/cm; 0.1 µS/cm; 1.0 µS/cm; 0.01 mS/cm; 0.1 mS/cm
TDS Resolution 0.01 mg/l; 0.1 mg/l; 1.0 mg/l; 0.01 g/l; 0.1 g/l
NaCl Resolution 0.1%
Temp Resolution 0.1°C / 0.1 °F
EC Accuracy ±1% of reading ±(0.05 µS/cm ro 1 digit)
TDS Accuracy ±1% of reading ±(0.03 mg/l or 1 digit)
NaCl Accuracy ±1% of reading
Temp Accuracy ±0.4°C / ±0.8°F
EC Calibration 1 point slope calibration with 6 memorized solutions (84.0 µS/cm, 1413 µS/cm, 5.00 mS/cm, 12.88 mS/cm, 80.0 mS/cm, 111.8 mS/cm)
NaCl Calibration 1 point, with MA9066 calibration solution
Temp Calibration 2 points, 0 to 50°C / 32 to 12 °F
Temp. Compensation automatic or manual, from -20.0 to 120.0°C / -4.0 to 248.0°F
Temp. Coefficient selectable from 0.00 to 6.00%/°C (EC and TDS only)
Probe MA813D/1 4-ring probe with built-in temperature sensor (included)
TDS Factor 0.40 to 0.80 (default value is 0.50)
Log on Demand up to 50 samples on each range (EC, TDS, NaCl)
GLP last EC, NaCl calibration data
PC Interface RS232 / USB Opto-isolated
Environment 0 to 50°C / 32 to 122°F; max RH 95%
Power supply 12 VDC power adapter (included)
Dimensions 230 x 160 x 95 mm
Weight 0.9 kg


MA814DB/1 4-ring Conductivity/TDS/NaCl/Temperature probe
with DIN connector and 1 meter cable
MA9060 12880 µS/cm calibration solution, 230 mL bottle
MA9061 1413 µS/cm calibration solution, 230 mL bottle
MA9063 84 µS/cm calibration solution, 230 mL bottle
MA9064 80000 µS/cm conductivity solution, 230 mL bottle
MA9065 111.8 mS/cm calibration solution, 230 mL bottle

100% NaCl calibration solution, 230 mL bottle

MA9069 5000 µS/cm solution, 230 mL bottle
MA9315 Electrode Holder
RS232 connection cable with 2 m cable
Mi5200 Application Software

Mi170 is supplied complete with
• MA814DB/1 EC/TDS/NaCl/Temperature Probe
• MA9315 Electrode Holder
• M10030 12880 µS/cm calibration solution
• M10031 1413 µS/cm calibration solution
• Mi5200 Application Software
• MA9350 RS232 connection cable with 2 meters cable
• 12 VDC Adapter
• Instruction manual