Auber Instruments WS-1500EB Manuale di funzionamento e istruzioni - Pagina 12
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value.
Table 3. List of control parameters and the initial settings under code 155
Symbol
Display
SC
SC
AL
AL
FA
FA
OAL
OAL
HY
Hy
COOL
COOL
OUT
Out
C-F
C-F
TK
TK
Details about each parameter.
SC, calibration offset. The parameter is used to make the input offset to
compensate for the error produced by sensor. Each unit is 0.1 degree. e.g. if the
temperature displays 2.0 ° C in ice water mixture, set SC=-2.0 will make the
display to shown 0.0 degree.
AL, Alarm temperature in degree. When the temperature passes the alarm set
value, the alarm LED and buzzer will be turned on. When the temperature drops
to that value, the LED and buzzer will be turned off. The alarm is for high limit
alarm only. It will not shut off the out.
FA. Alarm buzzer control. When FA=1, the buzzer will be on when the alarm
LED is lit. When the FA=0, the buzzer will not be turned on at the alarm
temperature.
oAL. Open loop alarm. This parameter is for detecting an open loop in the control
system. e.g. if the sensor was forgotten to be inserted in the oven, or the sensor is
defective, or the heater is defective. When enabled (oAL=1), it will shut off the
output if the temperature increased less than 3 ° C (5 ° F) after the controller was
powered up for 5 minutes. The alarm buzzer will be turned on at the same time.
The display will flashing OPEN (oPEn).
Hy. Hysteresis band (or dead band). This parameter is used for on/off control only.
In the on/off heating mode, the heater will be turned off when T = SV, and turned
Description
Off set (degree)
Alarm Setting
Alarm buzzer
Open loop alarm
Hysteresis band
Control mode (heating or cooling)
Output power percentage (%)
Temperature unit
Timer
12
Range
Initial
-20~+20
0
-58-752° F
-50-400° C
250
0=off 1=on
0
0=off 1=on
0
0-100
3
0=heat 1=cool
0
1-100
100
° C or ° F
° F
1=on, 0=off
1