Systech Instruments EC900 series - USB Communication Commands

EC900 Series Operation Manual V4.7
www.systechillinois.com
Page
32
14.5 USB Commands For Use with the EC900
COMMAND
DESCRIPTION
?
Reads measured O
2
value
VER?
Reads Version no.
TEMP?
Reads cell temperature
SERNO?
Reads instrument serial no.
LIFE?X
Reads cell life, X=1 for ppm cell, X=2 for % cell
CELL?
Reads cell type (0= RACE cell, 1 = ppm cell, 2 = % cell)
SAVESPAN X
Saves SPAN values and resets LIFE to 100%, X= 1 for the ppm
cell, X=2 for the % cell.
UNLATCH
Resets the alarm latch.
AL1?
AL1=
Reads/Sets Alarm1 set point
AL2?
AL2=
Reads/Sets Alarm2 set point
ID?
ID=
Reads/Sets instrument ID no. (0 to 9)
ANHI?1
ANHI=1_
Reads/Sets oxygen level for high analogue output 1 (20mA)
ANLO?1
ANLO=1_
Reads/Sets oxygen level for low analogue output 1 (4mA)
OL?
OL=
Sets OL parameter
ACAL?
ACAL=
Reads/Sets O2 value of calibration gas
ACD?
ACD=
Reads/Sets interval for Autocalibration (hours)
GAS?
GAS=
Reads/Sets carrier gas molecular weight
Note: For commands which return or require an oxygen value then scientific notation, with 1 = 100%
should be used. For example:
100% would be 1E-00
20.9% would be 2.09E-01
0.1% (1000 ppm) would be 1.0E-03
35 ppm would be 3.5E-05
2 ppm would be 2.0E-06