Par
Operating parameters menu
Press “UP” to enter the menu. The operating parameters menu contains the
units scale setting, cut-out reset mode setting, approach setting, and soak stabil-
ity setting.
6.12.1
Temperature Scale Units
The temperature scale units of the controller may be set by the user to degrees
Celsius (°C) or Fahrenheit (°F). The scale is used in displaying the well temper-
ature, set-point, proportional band, and cut-out set-point.The temperature scale
units selection is the first function in the operating parameters menu.
Un=C
Scale units currently selected
Press “UP” or “DOWN” to change the units.
Un=F
New units selected
Press “SET” to accept the new selection and resume displaying the well
temperature.
6.12.2
Cut-out Reset Mode
The cut-out reset mode determines whether the cut-out resets automatically
when the well temperature drops to a safe value or whether the operator must
manually reset the cut-out.
The parameter is indicated by,
CtorSt
Cut-out reset mode parameter
Press “SET” to access the parameter setting. Normally the cut-out is set for
manual mode.
Cto=rst
Cut-out set for manual reset
To change to automatic reset mode press “UP” and then “SET”.
Cto=Auto
Cut-out set for automatic reset
6.12.3
Approach
The approach parameter can be used to reduce overshoot. The larger the value
the less overshoot. However, if the value is too large it may take too long for
the temperature to settle to a new set-point. The default value is 5. It can be
changed in the parameter menu.
9116A Furnace
User’s Guide
34
Содержание 9116A
Страница 1: ...9116A Furnace User s Guide Rev 842101 Hart Scientific ...
Страница 24: ...19 Figure 5 Back Panel ...
Страница 28: ...9116A Furnace User s Guide 24 Figure 6 Controller Flow Chart ...
Страница 56: ...53 8 Fixed Point Cell Installation Instructions Procedure Figure 14 Place insulation in re entrant well ...