from Fahrenheit to Centigrade when the C/F key is pressed. The analog output
level does not change when C/F is toggled, because ranges are converted.
MABC Starts the Manual ABC cycle. If the RH
CALIBRATOR is already in an ABC
cycle, this key cancels the ABC cycle.
HEAT Turns on/off MAN MAX HEAT. Once this
key is pressed, the sensor is kept in
MAN MAX HEAT until the MAN MAX
HEAT key is pressed again. In MAN
MAX HEAT, the SERVOLOCK is
bypassed and the mirror is heated. The
upper right section of the LCD flashes
MAN MAX HEAT, and the RS-232 output
indicates MAX HEAT. During an ABC
cycle, MAX HEAT (MAX COOL) does not
function.
Figure 12-1. Keypad
NOTE: Turning on MAX HEAT turns off MAX
COOL and vice versa. Both
cannot be activated simultaneously.
COOL Turns on/off MAX COOL. The sensor is kept in MAX COOL until the MAX
COOL key is pressed again. The upper right portion of the LCD flashes MAN
MAX COOL.
ENT Enter the SCROLLING MENU.
The SCROLLING MENU PROVIDES access to RH SETPOINT, AT
SETPOINT, ANALOG OUTPUT, ABC, and SERIAL setup functions.
In the SCROLLING MENU use THE UP, DOWN, LEFT and RIGHT arrows to
highlight a selection and press ENT to enable changes. The selected function
will flash on and off and can now be set to the desired value using the keypad.
ESC Exit from the SCROLLING MENU.
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