DOHSE AQUARISTIK HOBBY pH-Control eco Руководство по эксплуатации - Страница 14
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Replace pH electrode
is displayed
Fluctuating pH value
In the event of a warranty or repair issue, please return to the place of
purchase.
9. Technical Specifications
Operating voltage:
Load capacity:
pH control range:
pH control accuracy:
pH switch hystereris:
(the difference between the on and off switching point)
pH alarm range:
pH calibration memory:
BNC Adaptor cable length:
10. EC Declaration of Conformity
The manufacturer declares that the devices comply with the requirements of
the relevant EMC and LVD standards and are therefore in conformity with EC
directives 2004/108/EC and 2006/95/EC.
14
Possible cause
pH electrode defect
pH electrode cable too
close to a mains cable or a
CO ² reactor
230 V, 50 Hz
Max. 2,000 W (ohmic load)
4.0 – 9.9
+/- 0.1 (reference value)
0.1
+/- 0.1 – 4.0 adjustable in 0.1 pH increments
Six-week
20 cm
Solution
Replace pH electrode
Re-locate pH electro-
de cable