Fluke 7341 - Set-point Vernier; Scan; Scan Control

7341
Users Guide
9-6
access the set-point vernier. If “EXIT” is pressed, any changes made to the set-point are
ignored.
S
Accept new set-point value
Set-point Vernier
The user may want to adjust the set-point slightly to achieve a more precise bath
temperature. The set-point vernier allows one to adjust the temperature below or above
the set-point by a small amount with very high resolution. Each of the 8 stored set-points
has an associated vernier setting. The set-point vernier can be set in increments of
0.00018°C. The vernier is accessed from the set-point by pressing “SET”. The vernier
setting is displayed as a 6 digit number with five digits after the decimal point. This is a
temperature offset in degrees of the selected units, C or F.
0.00000 Current vernier value in °C
To adjust the vernier, press “UP” or “DOWN”. Unlike most functions the vernier setting
has immediate effect as the vernier is adjusted. “SET” need not be pressed. This allows
the bath temperature to be continually adjusted as it is displayed.
U
Increment display
0.00090 New vernier setting
Next press “EXIT” to return to the temperature display or “SET” to access the
temperature scale units selection.
S
Access scale units
Scan
The scan rate can be set and enabled so that when the set-point is changed the instrument
heats or cools at a specified rate (degrees per minute) until it reaches the new set-point.
With the scan disabled the instrument heats or cools at the maximum possible rate.
Scan Control
The scan is controlled with the scan on/off function that appears in the main menu after
the set-point function.
scAn=OFF Scan function off
Press “UP” or “DOWN” to toggle the scan on or off.
scAn=On Scan function on
Press “SET” to accept the present setting and continue.
S
Accept scan setting
lScan Rate
The next function in the main menu is the scan rate. The scan rate can be set from 0.001
to 5.0 °C/min. The maximum scan rate however is actually limited by the natural heating
or cooling rate of the instrument. This is typically less than 2.5°C/min, especially when