118165-001 REV. A
475 Wireless Boulevard • Hauppauge, New York 11788, USA • www.spellmanhv.com • T:+1 631.630.3000 • F:+1 631.435.1620
39
4.4.13
Set Exposure mAs
Description:
The host requests that the firmware set mAs (milliamp-seconds) for
the next exposure. This command is used in 2 point exposure
mode and mAs+mA. When the unit is in 2 point mode the mA,
exposure time, and HSS Speed are automatically calculated based
on is setting plus the tube table. The setting of this value is ignored
when the unit is operated in manual (3 point) exposure mode. If the
new setting is in the valid range, and the new setting in combination
will the current settings of the other exposure parameters is valid
the unit will respond with a “$ “ following the command field. If the
new setting is valid, but the combination of the new setting plus the
current setting of the kV is illegal the unit will respond with a
warning code of 10. In this case the host will be required to correct
the setup problem. If the setting is invalid / out of range the unit will
respond with and error code of 3 and the previous value of the mAs
will remain in effect. If the X-Ray is currently on the unit will return
an error code of 9 (state error). The host is not allowed to modify
exposure settings while the high voltage is on.
Direction:
Host to supply
Syntax:
<STX><74><,><ARG1><,><CSUM><ETX>
Where:
ARG1 = Exposure mAs program.
Range = 0 to 6000 = 0 – 600mAs
Scaling = 0.1 mAs / Bit
Example (set mAs to 50.5 milliamp-seconds):
<STX>74,505,<CSUM><ETX>
Response:
<STX><74><,><$><,><CSUM><ETX>
Error / Warning Code Responses:
<STX><74><,><E><,><CSUM><ETX>
Where E is:
3 = Argument is out of bounds
9 = State Error – (Can’t change with X-Ray on)
10 = Invalid Setup Warning
11 = Mode Error, unit is in 3-Point mode not 2-Point Mode
