3
Specifications
Display
Liquid crystal, backlit, with pictograms
Keypad
Membrane , 5 keys
Measuring ranges
pH
–2.00 to 19.99
mV ±
1400
Conductivity
0.01 µS/cm to 500 mS/cm
TDS
0 mg/L to 500 g/L
Temperature
–20.0 to 150.0 °C (–4.0 to 302.0 °F)
Resolution
pH 0.01
mV
1 (0.1 mV from -199.9 to 199.9 mV)
Conductivity
Depends on range of measurement
TDS
Depends on range of measurement
Temperature
0.1 °C (0.1 °F)
Measuring error (± 1 digit)
pH
≤
0.01
mV
≤
1
Conductivity
≤
0.5 %
TDS
≤
0.5 %
Temperature
≤
0.2 °C (
≤
0.4 °F)
Reproducibility (± 1 digit)
pH
± 0.01
mV ±
1
Conductivity
± 0.1 %
TDS
± 0.1 %
Temperature
± 0.1 °C (± 0.1 °F)
Temperature compensation
With built-in Pt1000 temperature sensor
Reference temperature (RT)
20 or 25 °C (68 or 77 °F). Factory settings: 25 °C (77 °F)
Temperature coefficient (TC)
0.00 to 5.00%/°C (factory settings: 2%/°C)
Calibration standards
pH
2.00, 4.01, 7.00, 9.21, 10.01 (at 25 °C)
Theoretical calibration (factory settings)
Redox
220 mV (a 25 °C)
Theoretical calibration (factory settings)
Conductivity
147 µS/cm, 1413 µS/cm,12.88 mS/cm and 111.8 mS/cm
(at 25 °C/77 °F)
Accepted cell constant
Between 0.05 and 50 cm
-1
(factory settings: 1.0 cm
-1
)
TDS conversion factor
0.00 to 4.44 (factory settings: 0.64)
Input impedance
> 10
12
. The switch from high to low impedance is made in the sensor con-
nector.
Additional technical data
Energy management
Automatic power off after 5 minutes of inactivity
Type of protection
IP 67
Power supply (batteries)
3 x 1.5V, type AA batteries. Autonomy of over 250 hours
Conector
MP-8, eight-contact multipin
ENGLISH
1. Specifications
Subject to change without notice.
MM150 HACH 0710.indd ANG:3
MM150 HACH 0710.indd ANG:3
7/9/10 13:02:50
7/9/10 13:02:50