Chapter 3 – Operation
Page 3-2 TestEquity 1007C Temperature Chamber
Front Panel Switches and Lights
Main Disconnect Switch
The Main Disconnect Switch controls power to the entire chamber and provides a mechanical
safety interlock to the lower door.
In the ON position (clockwise) primary power is connected. The Temperature Controller, Limit
Controller, and (optional) Chart Recorder are always functional when the Main Disconnect
Switch is ON, regardless of the Master Switch position. The Main Disconnect Switch should be
left ON if the chamber is usually used on a daily basis.
In the OFF position (counter clockwise) primary power is disconnected. The Main Disconnect
Switch can be left OFF if the chamber is not used on a daily basis. It can also be locked in the
OFF position with a padlock. The knob has a red insert that can be pushed in at the top to reveal
the lock-hole.
! CAUTION: This chamber has a crankcase heater to protect the high-stage compressor. The
chamber must be connected to the power source AND the Main Disconnect
Switch must be ON for 3 hours prior to operating the chamber. Although it
may be safe to use the chamber immediately, this procedure ensures the
longest possible life for the high-stage compressor if the chamber has been
removed from the power source for more than 24 hours.
CONDITIONING Switch – ON Mode
The CONDITIONING Switch enables all chamber functions. When the CONDITIONING
Switch is OFF and the POWER Switch is ON, only the Temperature Controller and Limit
Controller is operational. When both the CONDITIONING and POWER Switches are ON, the
chamber’s temperature conditioning system will function to maintain the temperature set point.
The CONDITIONING Switch does NOT
illuminate in any position.
CONDITIONING Switch – EVENT 1 Mode
When the CONDITIONING Switch is in the EVENT 1 position, you can enable and disable all
chamber functions through Event 1 (Digital Output 1) of the F4 Temperature Controller. When
the CONDITIONING Switch is in the EVENT 1 position and EVENT 1 is Off, all chamber
functions are disabled. If EVENT 1 is On, all chamber functions are enabled.
See page 4-4 for instructions on how to control the EVENT 1 in manual mode. In profile mode,
Event 1 is named CONDITION.
! CAUTION: Remember to set DigitalOut 1 (Event Output1) to On in static set
point mode when the chamber is to be operational. In this mode, the Modbus
register for Digital Output 1 is 2000.
! CAUTION: Remember to set CONDITION to On in the profile event prompt all
programmed steps when the chamber is to be operational.
To Next Page
Loading...
