Scientech S310 Vector - Manual (Page 13)

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2. Group Settings for Astral  or Large Aperture Calorimeters:
Note: The factory default Group for Astral or Large Aperture Calorimeters is Group #1.
Note: Pressing the CANCEL button at any time during this process will terminate this process
with no changes made.
Note: Holding down the SELECT button for 3 seconds at any time during this process will save
any changes made up to that point and return the S310 to its operational state for the
Group selected.
To review, change, or setup a Group Setting for Astral or Large Aperture calorimeters, proceed as follows:
A. Press the SETUP button. The Group Setting last used will appear in the display.
B. To move to the next Group, press SETUP button again.
C. To select a Group, press the SELECT button when the Group you desire appears in the display (failure
to press the SELECT button within 3 seconds will activate the Group shown in the display and return the
S310 to its operational state).
D. Press the SETUP button until the calorimeter annunciator “CAL” appears in the display. Press the
SELECT button to activate the calorimeter configuration program.
E. The "tc" (time constant) annunciator now appears in the display. The time constant is a measure of the
length of time the calorimeter takes to respond to a laser beam.
Press the count up (RANGE) and count down (MODE) buttons to change the number in the display to
match the time constant number listed on the serial tag of your Astral calorimeter or interface module
for large aperture calorimeters. Press the SELECT button to enter the time constant value to memory.
F. The "SP" (speed) annunciator now appears in the display. The speed setting allows you to control the
indicator’s display rate. The best value will cause a slight overshoot then a quick settling on the final
value. Too high of a setting will cause the display to overshoot then slowly drift back down to the final
value. A slow setting will cause the display to slowly count up to the final value.
Press the count up (RANGE) button to speed up or count down (MODE) button to slow down the
response time of the meter. Press the SELECT button when the desired number appears in the display.
The following settings can be fine tuned to your preference of speed versus overshoot. We recommend
these initial settings:
AC2500, AC25HD, ACX25HD 103.0
AC2501, ACX2501, AC25UV, AC2504 136.0
AC5000, AC50HD, ACX50HD 100.0
AC5001, ACX5001, AC50UV, AC5004 120.0
360401 with interface module 150.0
380401, 380402, 384UV5 with interface module 245.0
360801 with interface module 170.0
380801, 380802, 388UV5 with interface module 280.0
G. The "Cd" (calorimeter delay) annunciator now appears in the display. The calorimeter delay feature
prohibits the display of energy if a pulse is fired before the entered time (1 to 255 seconds) elapses. The
calorimeter must reach environmental thermal equilibrium before a subsequent pulse is fired or low
energy measurements will occur.