6200 series Operations Manual
Rev D 2/14/2012
Page 40 of 60
Operation of Front Mounted 10” Recorders (RCDR303, RCDR304)
Built in 10” thermal pen recorders can be purchased with CARON chambers. The
recorders are shipped installed on the outer door of the chamber from the factory and
require no further installation. Unlike ink pen recorders, the thermal recorders draw
their own chart and control lines.
The 10” recorders have been setup at the factory in the following configuration: 7 Day /
24 Hour / Temperature 0-100°C / Humidity 0-100% (for dual input recorders). If this is
not the ideal configuration for an application, the recorder may be reconfigured using
the following process:
Configuring the recorder:
In order to configure the recorder, you will need to enter the set-up mode of the
recorder. To enter the set-up mode of the recorder, press and hold the Change Chart
button (#3) until the thermal pen arm begins to move off scale and then release the
button.
Note: The green LED light will flash fast while the thermal pen arm is moving off scale.
Wait until the thermal pen arm has moved completely off scale and stops (the green
LED light will stop flashing and will be steady On). Unscrew (counter clockwise) the
chart "hub" knob at the center of the chart and remove the recording chart paper.
Gently lift the thermal pen arm just enough to be able to slide the paper out from
beneath it. Remove the recording chart paper and place the Setup Chart onto the
recorder. This chart contains the configuration categories of the recorder (Probe Input,
Inner Chart Temperature, Outer Chart Temperature, Temperature Scale, Chart
Rotation Speed, Input Filtering, Optional Relay Contacts and Date/Time for internal
clock).
Next, press and hold either button #1 or #2 until the green LED light goes out and
release the button. If this step is successfully completed, the pen arm will move to the
outermost graduation ring of the Setup Chart. Use the Left (#1) or Right (#2) arrow
buttons to adjust the center of the thermal pen to be on this outermost graduation ring.
Position the Setup Chart so that the tip of the thermal pen is in the center of the Start
circle. Tighten the chart hub knob to secure the chart in place. Next, press and
release the Change Chart button to begin. The chart will rotate to the first category
(Input #1). Use the Left and Right arrow buttons to move the thermal pen arm to the
desired option of each category. Press and release the Change Chart button to accept
the selection and advance to the next category. You must press and release the
Change Chart button when you have finished configuring the last category in order to
