Teledyne 3000ZA2G - Zirconium oxide analyzer - Manual (Page 38)

Installation 3000ZA2G
Teledyne Analytical Instruments 26
Table 3-5: Commands via RS-232 Input
Command Description
as
<enter> Immediately starts an auto span.
az
<enter> Immediately starts an auto zero.
st
<enter> Toggling input. Stops/Starts any
status message output from the
RS-232, until st<enter> is sent
again.
The RS-232 protocol allows some flexibility in its implementation.
Table 3-6 lists certain RS-232 values that are required by the 3000ZA2G
implementation.
Table 3-6: Required RS-232 Options
Parameter Setting
Baud 2400
Byte 8 bits
Parity none
Stop Bits 1
Message Interval 2 seconds.
3.4 Testing the System
Before applying power to the instrument:
 Check the integrity and accuracy of the gas connections.
Make sure there are no leaks.
 Check the integrity and accuracy of the electrical
connections. Make sure there are no exposed conductors.
 Check that inlet sample pressure is within the accepted range
(see Section 3.3.1).
 Power up the system, and test it by repeating the Self-
Diagnostic Test as described in Chapter 4, Section 4.3.5.