Measuring The Temperature - Xylem wtw Cond 7110 Operating Manual

Conductivity
Stability criteria (AutoRead )
18
The stability control function (AutoRead) continually checks the stability of the
measured values in the monitored time interval. The stability has a consider-
able impact on the reproducibility of measured values. The [AR] display indi-
cator flashes until a stable value is measured.
Measured Time inter-
parameter
10 seconds
ϰ
Conductivity
Temperature 15 seconds
5.1.2

Measuring the temperature

The temperature measurement is absolutely essential for a reproducible
conductivity measurement.
You have the following options to measure the temperature:
• Automatic measurement of the temperature with the temperature sensor
(NTC30 or Pt1000) integrated in the sensor.
• Manual determination and input of the temperature.
The measuring instrument recognizes whether a suitable sensor is connected
and automatically switches on the temperature measurement.
Which type of temperature measurement is active is indicated by the tempera-
ture display and the [TP] status indicator:
Resolution of
Tempera- the temp. dis-
ture sensor
yes 0.1 °C
- 1 °C
If you wish to measure (or calibrate) without temperature sensor, proceed as
follows:
1. Measure the current temperature of the test sample.
2. Set the temperature value with <><>.
val Stability in the time interval
∆ : better than 1.0 % of measured value
∆ : Better than 0.5 ° C
Status indica-
play tor
[TP]
-
Cond 7110
Temp. measure-
ment
Automatic with tem-
perature sensor
Manual
ba75927e05 12/2017