Quick Guide - Hach LANGE si628 P Manuel D'utilisateur

4. Operation

4.3. Quick guide

This page shows the instrument's operation by blocks. It is intended to provide a quick idea about all the
instrument's capabilities and how to gain access to them.
Security access
code. It limits the
access to calibra-
tion or program-
ming of the ins-
trument by non au-
thorised people.
When the "Code" screen has been shown for
more than 30 sec. the instrument will automati-
cally return to MEASURE.
Instrument in hold state.
When being in the grey zone, the in-
strument is in hold state:
• Contact relays are opened.
• According to the configuration, the
current output is frozen at 21 mA or
at the mA corresponding to the last
measured value.
To quit the hold state it is necessary to
return to Measure. The current output
4 to 20 will activate in 10 sec.
si628 P_HACH_LANGE_Ed.0510.indd ANG:15 si628 P_HACH_LANGE_Ed.0510.indd ANG:15
M E A S U R E
pH 7.34 25.2 °C
CODE 000
Vary the underlined digit with
and accept with .
Authorised code = 100
MEASURE pH & °C
CALIBRATION
LIMIT 1
LIMIT 2
OUTPUT 4-20 mA
HOLD
LANGUAGE
TYPE OF MEASURE
See "calibration ... "
(
page 19-20)
See "programming ..."
(pages 16-17)
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