Using the StarBright Display Unit
StarBright User Manual
19
To set the analog output voltage:
1.
Use the up (
↑
) /down (
↓
) Navigation keys to select
Max An. Output
and press the
Enter
key.
2.
Select the relevant voltage setting (
1V
,
2V
,
5V
,
10V
).
3.
Press the
Enter
key to exit this selection screen and save the new setting.
The analog output is driven through an impedance of 100ohm. For best accuracy, is recommended
to limit the external load to 100K (or larger). A smaller load (down to 1K) is possible, but may
result in loss of accuracy.
For Thermopile and Photodiode sensors in power mode, the analog output is continually updated
15 times per second with the latest power measurement. For Thermopile sensors in single shot
energy mode, the analog output is held until the next pulse is measured. For Pyroelectric sensors,
the analog output is updated at up to 10 times per second with the latest pulse energy.
3.3.8
RS232 and USB Outputs
The StarBright is equipped for either RS232 or USB communications with PC. The Unit is supplied
with a standard cable for USB communications and a custom cable for RS232 (see
You can change the RS232 baud rate with or without the sensor connected.
To set the RS232 baud rate for RS232 PC communication:
1.
Disconnect the sensor and change the setting in the
Instrument Settings
screen.
Alternatively, when the sensor is connected to StarBright, the RS232 Baud Rate can be
configured in the instrument settings screen, accessed by pressing the
Menu
button and
selecting
Instrument
.
2.
Use the Navigation keys to select
RS232 Baud Rate
and press the
Enter
key to display the
options (
115200
,
57600
,
38400
,
19200
).
3.
Change the setting with the up (
↑
) /down (
↓
) Navigation keys and press the
Enter
key to
save.
3.4
StarBright Functions – Independent of Sensor Type
This section describes the functions available when no sensor is connected to the StarBright.
Topics include:
Measurement Screens (Graph Types)
