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9
Warranty
We warrant this instrument to be free from defects in material and workmanship and agrees to repair or
replace free of charge, at option of APERA INSTRUMENTS (Europe) GmbH, any malfunctioned or
damaged product attributable to responsibility of APERA INSTRUMENTS (Europe) GmbH for a period of
two years
from the delivery (a
six
-
month
limited warranty applies to probes). This warranty does not
apply to defects resulting from actions such as misuse (violation of the instructions in this manual or
operations in the manner not specified in this manual), improper maintenance, or unauthorized repairs.
Warranty period is the time limit to provide free service for the products purchased by customers, not the
service life of the tester or probe.
10
Appendix I: Parameter setup and factory default setup
Modes
Prompts
Parameter setting items
Abbreviation
Description
Restore
to factory
default
setup
P1.0 pH
P1.1
Select pH buffer solution
USA
－
NIST
－
CUS
－
CH
－
P1.2
Set due calibration
No
－
H00
－
D00
No
P1.3
Check the date of the last
calibration
/
－
－
P1.4
Set pH measurement mode of
distilled water
Off
－
On
Off
P1.5
Set pH measurement mode of
distilled water mixed with
ammonia
Off
－
On
Off
P1.6
Restore factory default setting
No
－
Yes
No
P4.0
Basic
parameters
P4.1
Adjust storage timing
/
－
0:00
P4.2
Select temperature unit
/
°C-°F
－
P4.3
Select backlight time
1
－
2
－
3
－
On
1
P4.4
Select auto power-off time
10
－
20
－
30
－
On
20
P4.5
Clear stored value
No
－
Yes
No
P4.6
Set up automatic lock-up
function
/
Off—On
Off
P4.7
Adjust date
/
－
－
P4.8
Adjust time
/
－
－
