Buffer Solutions - Xylem MJK pHix Compact V3 NG Manual

and zero point.
Existing buffer adjustments are deleted once new buffer adjustments is completed.
It is needed that pHix, the electrode and the buffer solutions are at the same
temperature during adjustment to get a correct slope and zero point.
The electrode
acceptance limits
Slope [mV/pH] @ 25°C
Offset [mV]
The LED pattern during buffer
adjustments is:
1 flash every 5 seconds.
3 flashes every 5 seconds.
2 flashes every 5 seconds.
1 flash every second.
3 flashes every second.
Timeouts
Two minutes to find buffer.
Ten minutes to complete the buffer adjustment.
If the the switch ring is used, the buffer found must be the same as the one selected with
the ring, else an error is triggered.
If the switch ring is not used the pHix automatically detects the buffer.
The default reference buffer values are 4.01, 7.0 and 10.01 pH, corresponding to the
buffer solutions provided by MJK. This values can be changed via
software
(see page 34)

Buffer solutions

Buffer solution are delivered as ready-to-use solutions with the pH values 4.01, 7.00 and
10.01.
During the buffer adjustment, pHix® Compact is calibrated in accordance with the pH
values of the buffer solutions. It is therefore important to use as accurate buffer solutions
as possible, i.e. to ensure that a pH 7 buffer solution in fact has a pH value of exactly 7.
Buffer adjustment /Buffer solutions
min
-62.12 mV
-30 mV
.
pHix® Compact V3. NG (next generation)
max
-50.0 mV
30 mV
Measuring mode
Trying to find buffer
Buffer found
Buffer not found
Error mode
EN 4.10 Version 2202
pHix Configurator
23