4 Operation
4.1 On-site operation
Operating elements Four keys, which allow the zero and span to be set, are available for on-site operation.
In the "pressure" operating mode, they are effective only for the bargraph and
numerals in the display module. The key functions are listed in the table below.
Display module A display module is available as an option. It has two display modes:
Display during measurement: standard operational mode
Display during calibration: is activated by pressing one of the keys +Z, –Z, +S or –S
twice. Automatically returns to measurement mode after 2 s.
Key functions
+Z increases the lower range-value (zero) by +1 digit
–Z decreases the lower range-value (zero) by –1 digit
+S increases the upper range-value (span) by +1 digit
–S decreases the upper range-value (span) by –1 digit
Key combinations (Press keys simultaneously)
Keys Function
Calibration
1x +Z and –Z the acting pressure is taken as zero (lower range-value)
1x +S and –S the acting pressure is taken as span (upper range-value)
Bias pressure
2x +Z and +S the acting pressure is taken as bias pressure
1x +Z and +S the current bias pressure is displayed
2x –Z and –S the current bias pressure is deleted
Secure measuring point
1x +Z and –S lock measuring point
1x –Z and +S unlock measuring point
Table 4.1
Key functions
-0.1...0.3 bar
-0.5 – 1.5 bar g
-0.5 – 1.5 bar g
– –
++
ZS
– –
++
ZS
ZS
+Z
-Z
+S
-S
z
➂
➀
➁
➅
➃
➄
keys for on-site operation
BA211Y33
display module
Display in normal operation
Display in calibration mode
➆
Figure 4.1
User interface of the Cerabar S
with optional display module
Display in normal operation
➀
4-figure display of measured
value and entered parameters
➁
Bargraph of measured value
➂
Lower-range value (zero)
➃
Upper-range value (span)
➄
Nominal measuring range
In addition for
display in calibration mode
➅
Display of the calibration point
(Z=Zero, S=Span)
➆
Set measurement range within
the limits of the measuring point
4 Operation Cerabar S FF
30 Endress+Hauser
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