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Metrohm 763 PVC Thermomat Manual User Manual

Page 131

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4 Operation

763 PVC Thermomat

124

Use test resistor

Carries out the GLP test with 6.2109.030 Test

resistor.

Resistance

Resistance in ohms (10 k

for 6.2109.030).

Enable the

Use test resistor

option and enter the

Resistance

of

the 6.2109.030 Test resistor in ohms. Afterwards, click on

.

For each channel in sequence, connect the 6.2109.030 Test

resistor to the electrode connections 20

20 and click on

.

Continue with step 4.

3 Carry out GLP test with standard solution

Insert a measuring vessel filled with 60 mL distilled water

together with a measuring vessel cover into all channels (see

section 4.6.3).

Click on

763 PVC THERMOMAT CONTROL / Tools / GLP test /

Conductivity

and click on

in the GLP test window.

Use standard solution

Carries out the GLP test with standard solu-

tions.

Conductivity of standard solution

Conductivity of the standard solution filled into

the measuring vessels in

µ

S/cm.

A solution of c(KCL) = 1 mmol/L, prepared

from the 6.2301.060 Conductivity standard (KCl

0.1 mol/L) available as an option, can be used

as standard solution. The conductivity of this

standard solution is: