Operation
21
ppm value by the µS value. For example, a solution of known 75 ppm TDS and
measured
100µS conductivity at 25ºC has a conversion ratio of 75/100 or 0.75.
To enter a new conversion ratio:
1. Push the TDS key.
2. Select the User mode (see section 3.11 on page 19).
3. Push the CAL/MCLR key twice (to skip over temperature compensation
adjustment) and the ratio will appear.
4. Push UP/MS or MR/DOWN until the new conversion ratio is displayed.
5. Push the CAL/MCLR key twice (to skip over calibration adjustment) to accept
the new conversion ratio.
6. Use the new conductivity/TDS ratio to measure samples.
3.14 Settings
3.14.1 Store a value in the memory
The MP series handheld meters have memory storage for up to 100 readings. Time
and date is recorded with each stored reading.
To download this stored data to a computer, see section 3.21 on page 29.
1. Push the UP/MS key to record a value.
2. The MEMORY icon appears and the temperature display is briefly replaced by
a number (1-100) that shows the position of the record. Figure 5 shows a
reading of 1806 µS stored in memory record # 4.
Figure 5
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