31
AHY1
Hysteresis of alarm
0...20% of span
0.5%
CF
Celsius/Fahrenheit selection
0 : °F select
1 : °C select
1
rESo
Resolution selection
0 : whole value
0
N.B. : 2 & 3 may only be used for
1 : 1 digit decimal
" in " = 100
2 : 2 digit decimal
3 : 3 digit decimal
ConA
Control action
0 : direct (cooling) action
1 : reverse (heat) action
1
ErPr
Error protection
OUT
ALM
0:
OFF
OFF
1:
OFF
ON
1
2:
ON
OFF
3:
ON
ON
HYSt
Hysteresis for ON-OFF control
0...20% of span
0.5%
LLit
Low limit of range
-50°C
HLit
High limit of range
1000°C
LCAL
Low calibration parameter
See § 3.8.
0°C
HCAL
High calibration parameter
See § 3.8.
800°C
3.5
Programming level 0 : control
The STATOP 4849 has several security levels (SEL function), to prohibit an unauthorised user access to
the fundamental control parameters.
User security resides in the necessity for the installer to keep the
button pressed for at least 6
seconds and at the most 16 seconds during display of the last parameter accessible at a given level to
access the higher level.
Programming level 0 concerns the directly accessible parameters and which are not the subject of
prohibited access.
3.5.1
Manual operation
Simultaneously pressing, for at least 6 seconds, the
and
fusion format
buttons sets the instrument to manual mode : the output power is written (in %) in display (preceded by
the sign H (for HOT). It can be adjusted with the
▲
or
▼
keys.
To return to Automatic mode, press
.
During Automatic Mode, pressing the
and
buttons for more than 6 seconds displays the
output power in percent, without returning to Manual Mode.
3.5.2
Automatic operation
This is the normal mode of use of the controller.
When setting up for the first time, no parameter is accessible at level 0 of programming, because the
" SEL " parameter has a value 0. Only the setpoint value can be modified, by means of buttons
▲
and
▼
,
and on condition that the keyboard has not been locked (" LoCL " parameter, see § 3.7). Go directly to
stage 1 of the following chapter.
Subsequently, you may change the value of the " SEL " parameter so as to access, for this level of
programming (i.e. without protection), some parameters of level 1.
Содержание Statop 4849
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