Specifications

EC/TDS
21
www.milwaukeeinst.com
Mi306 is a waterproof portable logging microprocessor-
based Conductivity/TDS/NaCl/temperature meter.
The autoranging feature of the EC and TDS ranges
automatically sets the meter to the scale with the highest
possible resolution.
The Auto Endpoint (HOLD) feature automatically freezes the
display when a stable reading is reached. The measure-
ments are automatically (ATC) or manually (MTC) compen-
sated for temperature.
The temperature coefficient value is user selectable. It is
possible to disable the temperature compensation and
measure the actual conductivity (NoTC).
The Battery Error Preventing System (BEPS) switches the
meter off when the batteries are too weak to support proper
function. The meter can store measurements in memory by
logging function for retrieval at a later time upon user
request.
Mi306 also allows data transfer to computer through the
RS232 port. Double LCD displays, for
simultaneous readings of the specific
conductivity and temperature.
Mi306
Automatic & Logging EC/TDS/NaCl Temp Meter
Ordering Information
Mi306 is supplied in a hard carrying case complete with
• MA814D/1 EC/TDS/Nacl/Temp probe
with DIN connector and 1 meter cable
• MA9060 12880 µS/cm calibration solution
• Mi5200 Application Software
• MA9351 RS232 connection cable with 2 meters cable
• Instruction manual
Accessories
MA814D/1 4-ring EC probe with DIN connector
and 1 m cable
M10030B 12880 µS/cm calibration solution,
20 mL sachet, 25 pcs.
M10031B 1413 µS/cm calibration solution,
20 mL sachet, 25 pcs.
M10033B 84 µS/cm calibration solution,
20 mL sachet, 25 pcs.
M10035B 111.8 mS/cm calibration solution,
20 mL sachet, 25 pcs.
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
MA9065 111.8 mS/cm calibration solution,
230 mL bottle
MA9066 100% NaCl calibration solution, 230 mL bottle
MA9069 5000 µS/cm solution, 230 mL bottle
MA9351 RS232 connection cable (5 to 9 pin)
with 2 meters cable (for Mi306)
Mi5200 Application Software
Specifications Mi306
Range (Autoranging) EC 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(*) EC
(Autoranging) TDS 0.00 to 14.99 mg/L; 15.0 to 149.9 mg/L; 150 to 1499 mg/L; 1.50 to 14.99 g/L;
15.0 to 100.0 g/L; up to 400.0 g/L actual(*) TDS (with 0.80 factor)
NaCl 0.0 to 400.0 %
Temp 0.0 to 60.0°C
Resolution EC 0.01 µS/cm (from 0.00 to 29.99 µS/cm); 0.1 µS/cm (from 30.0 to 299.9 µS/cm);
1 µS/cm (from 300 to 2999 µS/cm); 0.01 mS/cm (from 3.00 to 29.99 mS/cm);
0.1 mS/cm (over 30.0 mS/cm)
TDS 0.01 mg/L (from 0.00 to 14.99 mg/L); 0.1 mg/L (from 15.0 to 149.9 mg/L);
1 mg/L (from 150 to 1499 mg/L); 0.01 g/L (from 1.50 to 14.99 g/L);
0.1 g/L (over 15.0 g/L)
NaCl 0.1 %
Temp 0.1°C
Accuracy EC ±1% of reading (±0.05 µS/cm or 1 digit whichever greater)
TDS ±1% of reading (±0.053 ppm or 1 digit whichever greater)
NaCl ±1% of reading
Temp ±0.4°C
Typical EMC EC ±1% of reading
Deviation TDS ±1% of reading
NaCl ±1% of reading
Temp ±0.1°C
Logging up to 250 records, LOG on demand or auto-logging
Communication with PC through RS232 port
EC Calibration 1 point with 7 memorized buffers: 84 µS/cm, 1413 µS/cm, 5000 µS/cm,
80000 µS/cm, 111800 µS/cm
NaCl Calibration 1 point with MA9066 buffer (optional)
Temperature automatic or manual from 0 to 60°C
Compensation (can be disabled to measure actual conductivity and TDS)
Temperature 0.00 to 6.00 %/°C (for EC and TDS only)
Coefficient Default value is 1.90%/°C
TDS Factor 0.40 to 0.80 (default value is 0.50)
reference Temperature: 20 or 25°C
Probe MA814D/1 EC probe with built-in temperature sensor & 1 m cable (included)
Auto-off after 5 minutes of non use (can be disabled)
Battery Type / Battery Life 1 x 9V Battery (included) / approx. 100 hours of use
Casing IP 67
Environment 0 to 50°C / 32 to 122°F; max RH 100%
Dimensions 200 x 85 x 50 mm
Weight 280 g
(*) Uncompensated conductivity (or TDS) is the conductivity (or TDS) value without temperature compensation.