TESTO 240 - Technical D D Ata; Instrument; Conductivity Measuring Cells

Technical ddata
Instru-
ment
Measuring rrange:
....................................0 to 2000 mS/cm
-50 to +150 °C/-60 to +300°F
1mg/l to 200 g/l (NaCl)
Resolution:
.................................................max. 0.1 µS/cm
0.1 °C (°F)
0.1 mg/l
Accuracy:
± 1 digit
Conductivity........................................................1 % of m.v.
Temperature ......±0.4 °C/0.7 °F (-50 to -25 °C/-60 to-15 °F)
±0.2 °C/0.4 °F (-25 to +75 °C/-15 to +165 °F)
±0.4 °C/0.7 °F (+75 to +100 °C/+165 to +210 °F)
±0.5 % of m.v. (+100 to +150 °C/+210 to +300 °F)
Measurement of salt content (NaCl) .................1.2 % of m.v.
Temperature ccompensation:
..............................automatic
Temperature ccoefficient:
...............................0 to 5 % / °C
• linear compensation
• compensation according to the
non-linear function of natural water
DIN 38404
0 to 50 °C/+32 to +120 °F
Cell cconstant:
................................................0 to 15 (1/cm)
Ambient ttemperature:
.............0 to +40 °C/+32 to +105 °F
Storage aand ttransport ttemperature:
...........-20 to +70 °C/.
4 to +160 °F
Display:
..................................................................two lines
Connections
..........................................mini-DIN socket for
conductivity measuring cells
or temperature probes (
testo
110
)
Battery llife:
......................................................approx. 60 h
Weight:
...................................................180 g (incl. battery)
Other:
....................................................low battery warning
• auto-off
• automatic conversion of meas.
range (conductivity)
• (°C - °F conversion)
• housing material ABS
• IP 54 protection
17