Fresenius Medical Care 4008 E Technical Manual page 191

Part 13: Calibrate conductivity (the values stated are examples only)
CALIB. CONDUCTIVITY
Confirm
key
CONDUCTIVITY Set
CONDUCTIVITY Check
back to menu ?
Note
Measuring instru-
ment accuracy:
±0.06 mS/cm.
Note:
Before calibrating the CD,
the temperature must be
calibrated or checked.
Note:
After having readjusted the
values, wait until the changed
value is indicated.
4008 H/S:
conductivity
display
7 8 9 0
4 5 6
1 2 3
In 4008 H/S machines the temperature
compensation function can also be checked:
Use to select the temperature setting field.
Use +/– to adjust the temperature.
Confirm with the Tone Mute key.
4-26
Fresenius Medical Care 4008 4/08.03 (TM)
Confirm
key
Confirm
act.cond: 14.7 mS/cm
key
Confirm
key
Concentrate setting field.)
conc. set = ±0 %
Readjust the pump by
pressing the
ACKNOWLEDGED
act.cond: XX.X mS/cm
Note:
Compare the value indicated
on the display with the LED
display and the external
measuring instrument.
Repeat the procedure
using different values.
act. cond: XX.X mS/cm
XXXX ADC-digits
XXXX steps
XXXX steps
concentrate bicarbonate temperature
setting setting setting
C
cond.set: XX.X mS/cm
Concentrate setting field.
Conc
key
conc. set = ±0 %
(Use to
move to the
Use
the concentrate pump volume
to obtain a conductivity in
the lower display range.
e.g.:
(+/–) keys.
Conc. set. = –6 %
Override
(Tone Mute)
key
ACKNOWLEDGED
approx. 3 sec
cond.set: XX.X mS/cm
Select
(Esc)
Wait for the CD to stabilize.
key
Compare the CD with the
external reference instrument.
In case of a deviation, adjust the dis-
play by pressing the
ACKNOWLEDGED
cond.set: XX.X mS/cm
Concentrate setting field.)
conc. set = –6 %
Use
the concentrate pump volume
to obtain a conductivity in
the lower display range.
e.g.:
Conc. set. = +10 %
ACKNOWLEDGED
Esc
Best
cond.set: XX.X mS/cm
Wait for the CD to stabilize.
Compare the CD with the
external reference instrument.
In case of a deviation, adjust the dis-
play by pressing the
DATA STORED
Select
(Esc)
key
Conc
key
(Use to
move to the
If no key is
pressed for
approx. 4 sec
(+/–) to reduce
Override
(Tone Mute)
key
approx. 3 sec
(+/–) keys.
Override
(Tone Mute)
key
approx. 3 sec
Conc
key
(Use to
move to the
If no key is
pressed for
approx. 4 sec
(+/–) to raise
Override
(Tone Mute)
key
approx. 3 sec
(+/–) keys.
Override
(Tone Mute)
key
approx. 3 sec