Scientech H410 Vector - Manual (Page 18)

18
U
SING THE
H410
WITH
A
STRAL
 S
ERIES OR
L
ARGE
A
PERTURE
C
ALORIMETERS
The calorimeter selected needs to be the appropriate model for the planned laser measurements. Please
familiarize yourself with the operating specifications which are given in the front of this manual.
Note: Astral and Large Aperture calorimeters are sensitive to all types of thermal input. Due to
the handling of the calorimeter during setup and possible environmental temperature
differences, thermal gradients may exist in the calorimeter. Allow the calorimeter to sit
undisturbed for several minutes to, reach thermal equilibrium, before using.
Note: When using a 25mm Astral calorimeter for measuring average power levels below 30mW
and single pulse energy levels below 30mJ, a Scientech Model 36-0203A, Isoperibol
Enclosure, is highly recommended. The isoperibol enclosure should not be used at average
power levels above 30mW, and single pulse energy levels above 100mJ because heat build
up will occur.
Note: Large Aperture calorimeters and the Interface Modules that they are calibrated with are
matched sets and must be used together.
1. To Turn On the Meter:
Note: For the most accurate measurements possible, the H410 should be turned on and warmed
up for 30 minutes.
Slide the ON/OFF switch, located on the upper right side of the H410, to the ON position. The indicator will
immediately turn on in the operational state last used. If you purchased the H410 with one detector, this
detector’s operating parameters will be in the indicator’s memory and you are ready to take measurements.
If you purchased more than one detector with the H410, you must make sure the operating parameters for the
detector you plan to use are in the indicator’s memory. For detailed instructions please refer to the operating
parameters listed on page 2 and the following procedure.
2. Turn the Analog Needle On or Off (does not apply to the H410D):
To turn the analog meter on or off, press and keep holding down the ON/SELECT button. Then release the
button after the meter appears or disappears.
3. Zero the Analog Needle (does not apply to the H410D):
Refer to Figure 2. The black slotted button located just below the display allows screwdriver adjustment to set
the analog needle to zero. This adjustment should be made before connecting the detector.
4. To Connect a Calorimeter:
Note: Only one detector should be plugged in at any time.
Refer to Figure 2. Slide the CAL/PYRO switch, located on the upper left side of the H410, to the CAL (up)
position. A 3 meter mini DIN type cable comes with Astral calorimeters. For large aperture calorimeters the
interconnect cables for both the calorimeter and the indicator are hard wired to the interface module. Connect
the cable(s) to the detector and the indicator’s mini DIN connector.
5. To Configure the H410 for a Calorimeter:
Note: Some of the menu selections are skipped in this section. They are discussed in detail in
later sections.
Note: You must save all settings by pressing and holding the OFF/CANCEL button until the
display blanks. If the H410 is turned off, by using the ON/OFF slide switch, before settings
are saved they will be lost.
The operating parameters for the calorimeter you are going to use must be entered into the H410’s memory.