Teledyne 4250 Installation And Operation Manual page 75

If you select CONDUCTIVITY for the parameter to calibrate, the
following display will appear:
CONDUCTIVITY CALIBRATION UNITS
• MS/CM • • PPT •
MS/CM is milli-siemens per centimeter. The siemen is the S.I.
(Système Internationale) name for the unit of conductance, which
is also the reciprocal of the ohm. The siemen was formerly called
the mho (ohm spelled backwards), and that term may be more
familiar to some. PPT is parts per thousand. Select the standard
most suitable for your application.
CONDUCTIVITY STANDARD
X.XX MS/CM
Then:
PLACE PROBE IN X.XX MS/CM
PRESS ENTER WHEN STABLE: X.XX MS/CM
Then:
CALIBRATING...
PLEASE WAIT...
If you select PPT for the conductivity standard:
CONDUCTIVITY STANDARD
X.XX PPT
Then:
PLACE PROBE IN X.XX PPT
PRESS ENTER WHEN STABLE: X.XX MS/CM
Then:
CALIBRATING...
PLEASE WAIT...
There is no need to calibrate the YSI 600 temperature sensor, as
it is self-calibrating.
4250 Flow Meter
Section 2 Programming
2-47