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IM 12B6B3-E-H
Appendix 10-7
10-6. Field Change Order
Software changes of the PH402
10-6-1. Changes made by software release 1.1
- In the PH402 the limits for the impedance measurement can be set-up in service-code 3 and 4. When the
measured impedance value goes beyond these limits, an impedance to low/high error is generated and
the
Set-up limit value is displayed. More convenient is to measure beyond these limits and show the measured
value all the time.
10-6-2. Changes made by software release 1.2
- When was function is started automatically, at the end of the wash function the question HOLD yes/no
was displayed and the instrument was waiting 10 minutes in HOLD. In release 1.2 the HOLD is automati-
cally switched off after the wash function is completed.
When the hardware limits for the impedance measurements are reached, the text Z1/2.LOW/HIGH is dis-
played instead of displaying the limit value.
Reset problem during 3rd pH-buffer programming (SC26) is solved.
In case of pH device with second parameter ORP-measurement enabled (SC02), the instrument returned
with an inverted ORP value. Calculation updated in this release.
New temperature sensors are added (in combination with a future new analog board). Hence the initializa-
tion procedure for PH402 is changed starting with software 1.2
10-6-3. Changes made by software release 1.3
- Normally an E20 error indicates that programmed data is lost and no longer valid.
In software versions 1.0, 1.1 and 1.2 an E20 error might occur wrongly; the contents of the EEprom
is still correct.This error happened arbitrary just after starting up the PH402. The reason is a software
bug which is solved in version 1.3 .
The next features are added concerning mA1/2 output and contacts 1..4:
-mA2:
PI control is now also available on ORP of 2nd parameter; this used to be available only for
rH.
-mA1:
linear output on 2nd parameter is transferred from the menu of mA2 output to the menu of
mA1 output.
-Contacts 1..4: alarm is now also available on ORP of 2nd parameter; this used to be available only for rH.
PI control is now also available on ORP of 2nd parameter; this used to be available only for
rH.
After every wash cycle an impedance measurement will be performed now.
10-6-4. Changes made by software release 1.4
-
If something goes wrong during autocalibration or manual calibration, an E0, E1, E2 or E3 error will be
generated. In software release 1.3 and below, the error was set as a soft fail error which could only be
cleared by a new, correct calibration. In version 1.4 the error is displayed as a message only; after press-
ing the YES,NO or MODE key, the error message will be erased.
-
The rH calculation was wrong in version 1.3 and below, because of a polarity fault. In release 1.4 it has
been corrected.
-
An E12 error indicates that the second process value (ORP/rH) exceeds its limits. In version 1.3 and
below, the E12 error could be generated even when the second process value was disabled.
In release 1.4, no E12 error will occur anymore if the second parameter is disabled.
-
In release version 1.3 and below, scrolling through logbook was only available when pincode was
installed. In release 1.4 logbook scrolling is always available, independent of pincode.
-
Upgrading of communication software.
Summary of Contents for PH402G
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