Low Temperature Thermometer
RT8B
User Guide
9
4.4 Adjusting the Averager ‘Response Speed’ Setting
The response speed setting allows the time constant of the AMETEK Land
RT8B
thermometer to be adjusted to suit the application. The response speed relates to
the signal output rate and gives an average reading over the duration of the response
speed time value and can be set via potentiometer P1 (see Fig. 7).
The averager response speed can be set to any value between 1 and 10 seconds (for 0
to 95% of the final reading).
To increase the response speed value (i.e. make the response faster):
•
Remove the screw-on cap covering the control switches.
•
Turn the potentiometer ‘P1’ anti-clockwise. When ‘P1’ is turned fully
anti-clockwise, the response speed is 1 second (3
t
)
To decrease the response speed value (i.e. make the response slower):
•
Remove the screw-on cap covering the control switches.
•
Turn the potentiometer ‘P1’ clockwise. When ‘P1’ is turned fully
clockwise, the response speed is 10 seconds (3
t
).
•
Refit the screw-on cap covering the control switches.
4.5 Settings Archive
It is recommended that any emissivity or response speed settings made, are recorded
and saved to archive. This allows future reference and quick traceability of settings
without having to access the instrument to check switch settings. When values for
emissivity and response speed are set, enter the information and values in the table
below:
Serial Number
Date
Emissivity
Response
Speed
