Chromalox CN2110 manual Security Codes and Levels, Configuration Menus

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Security Codes and Levels

To limit access to the user configuration interface, security codes are assigned to different menu levels. Make security codes available to operators, maintenance crew, supervisors, etc. according to what func- tion level you want for each group. Security Level C is not recom- mended for most users. Gain access to configuration menus using the following codes.

Security Level	Security Code	Function
A	All Values	Allows adjustment of
		the Set Point
B	458	Basic menus
C	736	Calibration menus

Configuration Menus

The following configuration menus can be accessed through the user interface (see Configuration, page 12).

Menu	Adjustable		Factory	Security
Code Function	Range		Default	Level
Security Lock	0-999		458	A
Process Variable Display	Read Only		N/A	A
Displays the actual process	°	°
temperature.	F or	C
Process Set Point Adjust	Sensor Range		0°F	A
Adjusts the target process	°	°
	F or	C

temperature.

Proportional Band

Temperature range above/below set point where proportional control is active. Most applications require a band between 10 to 200°F. This menu is active only when the dip switch is set to “PI”

1 to Sensor 25 B Span Maximum

°F or °C

Automatic Reset	0.0 to 100.0	0.1	B
Control feature that	Repeats/Min.

automatically corrects for small temperature offsets that occur in proportional control. The higher the setting, the faster the correction occurs. A high setting could cause overshoot during start-up. A low setting will not allow process temperature to reach to set point quickly enough. A setting of “0” turns off automatic reset. This menu is active only when the dip switch is set to “PI”.

CN 2110 14 Section 4–Adjusting Set Point and Configuration