- -
30
•
Upon confirming the calibration by using “
F3 = CAL
”, the instrument checks that the correction
to the cell constant does not exceed the
±
10% limits. If the calibration is rejected because it
exceeds the
±
10% limit, the “
NON ADMISSIBLE VAR%
” message will appear, followed by a
long beep.
The instrument remains in calibration mode and maintains the cell constant
nominal value of the SICRAM memory
: If you leave the calibration by pressing ESC, the
instrument will preserve the cell constant K nominal value.
•
The most frequent causes of error are due to the probe malfunctioning caused by deposits, dirt,
pollution, bad preservation conditions of the standard conductivity solutions. Please see the
chapter dedicated to trouble shooting on page
38
.
•
The SPT401.001S probe with cell constant K=0.01 is supplied with a 2m
cable
. The cable has a
connector to be screwed on the probe’s body, on one end, and the SICRAM module to be
connected to the instrument, on the other end. The SICRAM module contains the probe’s
information (serial number, calibration parameters, etc.)
The probe, together with its cable,
should be used only with that cable. You cannot use other probes’ cables: The measured
value will be wrong.
The SPT401.001S measurement is performed in closed chamber.
Table of standard solutions at 147
μ
S/cm, 1413
μ
S/cm, 12880
μ
S/cm and 111800
μ
S/cm
The table reports the standard solutions automatically detected by the instrument according to
temperature.
°C
µS/cm µS/cm mS/cm mS/cm
°C
µS/cm µS/cm mS/cm mS/cm
15.0
121 1147 10.48 92.5
25.0
147
1413
12.88
111.8
16.0
124 1173 10.72 94.4
26.0
150 1440 13.13 113.8
17.0
126 1199 10.95 96.3
27.0
153 1467 13.37 115.7
18.0
128 1225 11.19 98.2
28.0
157 1494 13.62 117.7
19.0
130 1251 11.43 100.1
29.0
161 1521 13.87 119.8
20.0
133
1278
11.67
102.1 30.0
164 1548 14.12 121.9
21.0
136 1305 11.91 104.0
31.0
168 1581 14.37 124.0
22.0
138 1332 12.15 105.9
32.0
172 1609 14.62 126.1
23.0
141 1359 12.39 107.9
33.0
177 1638 14.88 128.3
24.0
144 1386 12.64 109.8
34.0
181 1667 15.13 130.5
25.0
147
1413
12.88
111.8 35.0
186 1696 15.39 132.8