Metrohm 773 pH/mV Simulator Manuel d'utilisateur Page 11
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- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
2.7 Checking conductivity meters
773 pH/mV Simulator
9
2.7 Checking conductivity meters
773 pH/mV Simulator
x100
x10
x1
-
-
14,3k
PT1000PT100 RE WEWEON/OFF
pH
U/mV
-
+
20
6
4
2
18
16
14
12
10
8
0
+
+
0
20
25
40
60
80
100
C
1000
~0,002
pH=7
U=0mV
i
R /M
1. Connect the sockets "14.3 kΩ" of the 773 pH/mV Simulator with
the measuring input of the instrument with the two 6.2150.000
Cables.
2. Note the values for the cell constant and the temperature set on
the instrument being checked. Set cell constant = 1 and the ref-
erence temperature which is valid for the instrument (20 or 25 °C).
3. Set the instrument being checked to "Measure conductivity".
4. The value should be approx. 70 uS (exact value in the table - field
R-Test / G).
5. If you are using the "Pt100" sockets of the 773 pH/mV Simulator
then the measured value should be approx. 10 mS (= 10 000 uS)
(exact value in the table - field Pt100 / G).
For the "Pt1000" sockets the measured value should be approx. 1
mS (1000 uS) (exact value in the table - field Pt1000 / G).
6. Now use the following sockets:
773 pH/mV Simulator
x100
x10
x1
-
-
14,3k
PT1000PT100 RE WEWEON/OFF
pH
U/mV
-
+
20
6
4
2
18
16
14
12
10
8
0
+
+
0
20
25
40
60
80
100
C
1000
~0,002
pH=7
U=0mV
i
R /M
The measured value should be approx. 65 uS (exact value in the
table - field Add.data, green).
7. Reset the actual values for the cell constant and temperature on
the instrument being checked.
Please take into account both the resolution of your instrument’s
display and the information about tolerances given in the
‘Instructions for Use’ for your instrument.
2 x 6.2150.000 Cables
2 x 6.2150.000 Cables
- 773 pH/mV Simulator 1
- Table of Contents 2
- 1 Overview 3
- 1.2 Purpose 4
- 1.3 Circuit diagram 4
- 2 Operation 5
- 2.2 Aligning/Checking the pH 7
- 6.2150.040 Cable 8
- (e.g. 670, 636) 9
- 2 x 6.2150.000 Cables 11
- 6.2150.010 Cable 12
- 3 Appendix 13
- 3.2.1 Warranty 14
- 3.2.2 Maintenance 14
- 3.2.3 Certificate 15
- EU Declaration of Conformity 16
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