6
MW180 pH / mV / EC / TDS / NaCl / Temperature Bench Meter
3. SPECIFICATIONS
Range
Resolution
Accuracy
@ 25 °C (77 °F)
Calibration
pH
-2.00 to 20.00 pH
-2.000 to 20.000 pH
0.01 pH
0.001 pH
±0.01 pH
±0.002 pH
Up to 5-point automatic
pH calibration,
7 standard calibration
buffers: pH 1.68, 4.01,
6.86, 7.01, 9.18, 10.01
and 12.45
Two custom buffers
ORP
±2000.0 mV
0.1 mV
±1 mV
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
absolute conductivity*
0.01 µS/cm
0.1 µS/cm
1 µS/cm
0.01 mS/cm
0.1 mS/cm
±1% of reading
(±0.05 µS/
cm or 1 digit,
whichever is
greater)
Single cell factor
calibration
6 standards: 84 µS/cm,
1413 µS/cm, 5.00 mS/cm,
12.88 mS/cm, 80.0 mS/cm,
111.8 mS/cm
One-point offset:
0.00 µS/cm
TDS
0.00 to 14.99 ppm (mg/L)
15.0 to 149.9 ppm (mg/L)
150 to 1499 ppm (mg/L)
1.50 to 14.99 g/L
15.0 to 100.0 g/L
up to 400.0 g/L absolute
TDS* (with 0.80 factor)
0.01 ppm
0.1 ppm
1 ppm
0.01 g/L
0.1 g/L
±1% of reading
(±0.03 ppm
or 1 digit,
whichever is
greater)
Salinity
0.0 to 400.0 % NaCl
2.00 to 42.00 PSU
0.00 to 80.00 g/L
0.1% NaCl
0.01 PSU
0.01 g/L
±1% of reading
one-point with
MA9066
Salinity
calibration solution
Temperature -20.0 to 120.0 °C
(-4.0 to 248.0 °F)
0.1 °C (0.1 °F) ±0.5 °C (±0.9 °F)
Temperature
compensation
ATC – automatic, from -20 to 120 °C (-4 to 248 °F)
MTC – manual, from -20 to 120 °C (-4 to 248 °F)
NO TC – without temperature compensation
Conductivity
temperature coefficient
0.00 to 6.00 % / °C (EC & TDS only)
Default value: 1.90 % / °C
TDS factor
0.40 to 0.80, Default value: 0.50
Logging memory
Two independent storage spaces. Each save location can contain
max. 1000 log records (stored in up to 100 lots).
On demand, 200 logs; on stability, 200 logs; interval logging, 1000 logs
*
Absolute conductivity (or TDS) is the conductivity (or TDS) value without temperature compensation.
