Scientech H410 Vector - Manual (Page 19)

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To enter into the configuration mode:
A. Press the MODE button. A menu cycle of J, W, CAL, tO and cd will begin.
B. Press the ON/SELECT button when “CAL” appears. A menu cycle of tCon, SPd and Attn will begin.
C. Press the ON/SELECT button when “tCon” appears. The current time constant value will be displayed
and the “SET CAL” annunciator will flash. The time constant is a measure of the length of time the
calorimeter takes to respond to a laser beam.
Use the RANGE (count up) button to increase the value or the MODE (count down) to decrease the
value. Enter the time constant value listed on the serial tag of your Astral calorimeter or interface
module for large aperture calorimeters.
D. Press the ON/SELECT button. The time constant is now active and the indicator will return to the last
operational state.
E. Press the MODE button to return to the menu in step A.
F. Press the ON/SELECT button when “CAL” appears. A menu cycle of tCon, SPd and Attn will begin.
G. Press the ON/SELECT button when “SPd” appears. The current speed up value will be displayed and
the “SET CAL” annunciator will flash. The speed up 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.
Use the RANGE (count up) button to increase the value or the MODE (count down) to decrease the
value. Enter the appropriate speed value from the following table.
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
H Press the ON/SELECT button. The speed setting is now active and the indicator will return to the
operational state last used.
I. Press the MODE button. A menu cycle of J, W, CAL, tO and cd will begin.
J. Press the ON/SELECT button when the cd annunciator is displayed. The current calorimeter delay
setting is displayed and the SET annunciator flashes. 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.
To set the time delay between pulses use the count up (RANGE) and count down buttons (MODE)
buttons to enter the time in seconds. Press the SELECT button after the time has been entered to save the
setting. The following time delays are recommended: