2
1. Technical Specifications
Measuring ranges
(resolution depending on scale)
Conductivity
0.01 µS to 500 mS/cm
Resistivity
0 to 100 M
Salinity
5.85 mg/l to 311.1 g/l NaCl
Temp
-20.0 to 150.0 ºC (-4 to 302 ºF)
Measuring error
(±1 digit)
Conductivity
0.5%
Resistivity
0.5 %
Salinity
0.5%
Temp
0.2 ºC (0.4 ºF)
Reproducibility
(±1 digit)
Conductivity
± 0.1 %
Resistivity
± 0.1 %
Salinity
± 0.1 %
Temp.
± 0.1 ˚C (0.1 ºF)
Automatic temperature compensation
Manual entrance.
With Pt 1000 temperature probe (A.T.C.)
With NTC 10 K probe.
Temperature coefficient, TC
Lineal, TC = 0.00 to 9.99 % / °C
Temperature reference, TRef
20 ˚C or 25 ˚C.
Conductivity calibration (EC)
With 1, 2 or 3 standards selectable inside the range.
Manual introduction of cell constant.
Programmable calibration validity between 0 and 99 days.
Automatic recalibration warning
Accepted cell constants
With calibration: values between 0.05 to 50 cm
-1
.
Manual introduction: values between 0.05 to 15 cm
-1
.
Measuring mode
By stability or in Continuous.
Languages
English, German, Spanish, French, Italian, and Portuguese.
Display
Graphic, backlit liquid crystal, 128x64 dots.
Inputs and outputs
Cell with built-in A.T.C. type Pt 1000, telephonic connector.
Stirrer, RCA connector.
Ambient conditions
Working temperature 5 to 40 ºC (41 to 104 ºF).
Storage temperature -15 to 65 ºC (5 to 149 ºF).
Relative humidity < 80% (not condensed).
Power supply
External plug-in power supply 100-240 VAC 0.4 A 47-63 Hz.
Materials
Enclosure, ABS and PC.
Keypad, PET with protective treatment.
Physical parameters
Weight: 1100 g.
Size: 350 x 200 x 110 mm.
EC7 HACH_LANGE 0710.indd ANG:2
EC7 HACH_LANGE 0710.indd ANG:2
8/7/10 16:49:44
8/7/10 16:49:44
