Operating Instructions
Landcal Blackbody Source
Type P80P
Page 11
9.2
Altering the Setpoint
(i)
Press either the
Down
or
Up
key once to display the setpoint.
(ii)
Use the
Down
or
Up
key to adjust the setpoint value.
The display returns to the measured temperature when no key is pressed for 0.5 seconds.
9.3
Altering the Ramp Rate
(i)
Press the
Scroll
key until the legend SPrr (SetPoint ramp rate) is displayed.
(ii)
Use the
Down
or
Up
key to adjust the ramp rate value.
The ramp rate sets the maximum rate of heating or cooling in degrees per minute. A value of OFF
cancels the ramp rate, allowing heating and cooling at the maximum rate.
9.4
Altering the Power Limit (when applicable)
(i)
Press the
Page
key until oP (output list) is displayed.
(ii)
Press the
Scroll
key until OP.Hi (Output High) is displayed.
(iii)
Press the
Down
key once to display the value of OP.Hi
and write down the value
.
WARNING
Do not increase the value without correct calculation; the furnace elements or
wiring could burn out.
(iv)
To alter the value, the
Down
or
Up
key. Do not set the value to zero; this will prevent the furnace from
heating.
9.5
°C to °F conversion
To change the controller from °C to °F operation, proceed as follows:
(i)
Depress both the
Up
and
Down
keys whilst turning on the instrument switch until the controller displays
ConF.
(ii)
Use the
Up
or
Down
key to change the security configuration number to 45.
(iii)
Leave the display at this setting for a few seconds until PASS is displayed.
(iv)
Press the
Page
key repeatedly until InSt Conf is displayed.
(v)
Press the parameter key to display Unit and use the
Up
or
Down
keys to change from °C to °F (other
units are K and none).
(vi)
Press the
Page
key repeatedly until Exit (E=It) is displayed.
(vii)
Use the
Up
key to select Yes.
(viii)
Leave the controller for a few moments until it reverts to the normal display.
The temperature setting will now be made in the new units selected. All temperature limits and PID
parameters are resized automatically to suit the new units.
WARNING
Do not alter any other paramters
