Specifications

Ideal for testing Dissolved Oxygen in the pharmaceutical
and food Industry, as well as monitoring in water treatment
plants. The user can choose to measure D.O. readings in
mg/L or % of saturation of O
2
.
This meter can be used for any type of water, as it allows
measurements to compensate for temperature, altitude and
salinity factors. The automatic logging interval can be set to
perform analysis and store data into the memory.
All logged data can be downloaded to your PC through an
RS232 or USB serial port. Memory can store up to 50 sam-
ples. Mi190 features an automatic calibration procedure, at
1 or 2 points (at 0 and 100% of O
2
saturation). The polaro-
graphic probe supplied with the meter (MA840/2) measures
the current generated by the reaction of O
2
with Ag.
Mi190 is supplied complete with MA840/2 DO probe
with 2 m cable, 2 spare membranes, MA7041 elec-
trolyte solution (30 mL), 12 VDC power adapter,
probe holder and instruction manual.
Ordering Information
Mi190 is supplied complete with:
• MA840/2 DO probe with 2 meter cable
• MA841 Spare membrane
• MA9071 Electrolyte solution
• MA9315 Electrode Holder
• Mi5200 Application Software
• MA9350 RS232 connection cable with 2 meters cable
• 12 VDC Adapter
• Instruction manual
Specifications Mi190
Range O2 0.00 to 45.00 mg/L (ppm)
% Saturation O
2 0.0 to 300%
Temp -5.0 to 55.0°C / 23.0 to 131.0°F
Resolution O
2 0.01 mg/L (ppm)
% Saturation O
2 0.1%
Temp 0.1°C / 0.1°F
Accuracy O
2 ±1.5 Full Scale
% Saturation O
2 ±1.5 Full Scale
Temp ±0.4°C / ±0.8°F
Logging 50 records, LOG on demand or auto-logging
DO Calibration automatic, 1 or 2 point at 0% (MA9070) and 100% (in air)
Temperature Compensation 0.0 to 50.0°C / 32.0 to 122.0°F
Altitude Compensation 0 to 4000 m; resolution 100 m
Salinity Compensation 0 to 40 g/L; resolution 1 g/L
DO Probe MA840/2 with DIN connector (included)
Temperature Probe Included in DO probe
Calibration 2 points (0.0°C and 50.0°C / 32.0 to 122.0°F)
Log on demand up to 50 records
PC interface RS232 / USB Opto-isolated
Power supply 12 VDC power adapter (included)
Environment 0 to 50°C / 32 to 122°F; max RH 100%
Dimensions 230 x 160 x 95 mm
Weight 0.9 Kg
Accessories
MA9070 Zero Oxygen Solution, 230 mL bottle
MA9071 Refilling Electrolyte Solution,
230 mL bottle
MA9310 12 VDC Adapter, 220 V
MA9311 12 VDC Adapter, 110 V
MA9315 Electrode Holder
MA841 Spare membrane (5 pcs)
MA840/2 DO probe with 2 meters cable
MA9350 RS232 connection cable with
2 m cable
Mi5200 Application Software
Polarographic D.O. Probe
Polarographic D.O. probe with
2 meters cable
Rear Connector Panel layout
Communication to the PC is done via opto-isolated USB
and RS232 ports.
Mi190
Extended Range Bench Dissolved Oxygen Meter
New
Dissolved
Oxygen
28
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