Step 4 – zero/span calibration – Teledyne 9110TH - Nitrogen Oxides Analyzer User Manual
Page 67
Getting Started
Model 9110TH NOx Analyzer
Teledyne Analytical Instruments
47
STEP 4 – Zero/Span Calibration :
To perform the zero/span calibration procedure:
Press EN TR to changes
the O FFS ET & S LO P E
values for both the N O
and N O
x
m easurem ents.
P ress E XIT to leave the
calibration unchanged and
return to the previous
m enu.
SA M P LE
G AS TO C AL:N O X
N O X
O 2
EN TR
E XIT
SA M P LE
N O X STB= XX X .X P P M
N O X =X XX .X
< TS T TS T > C AL S ETU P
M -P C AL
N O X STB= XX X .X P P M
N O X =X XX .X
ZER O
C O N C
E XIT
SA M P LE
R A N G E TO C AL :LO W
LO W
H IG H
EN TR
E XIT
E XIT at this point
returns to the
SA M P LE m enu.
Press EN TR to changes
the O FFS ET & S LO P E
values for both the N O
and N O
x
m easurem ents.
P ress E XIT to leave the
calibration unchanged and
return to the previous
m enu.
SA M P LE A 1:N X C N C 1=100P PM N O X =XX X.X
< TS T
TST >
C AL S ETU P
Set the D isplay to show
the N O X S TB test
function.
This function calculates
the stability of the N O /N O
x
m easurem ent
Toggle TS T> button until ...
A llow zero gas to enter the sam ple port
at the rear of the analyzer.
W ait until N O X S TB
falls below 0.5 ppm .
This m ay take several
m inutes.
SA M P LE
N O X STB= XX X .X P P M
N O X =X XX .X
< TS T TS T >
C AL
S ETU P
M -P C AL
N O X STB = X XX .X PP M
N O X =X.X XX
EN TR
C O N C
E XIT
SA M PLE
G AS TO C AL:N O X
N O X
O 2
E N TR
E XIT
M -P C AL
N O X S TB = XX X.X P PM
N O X =X .XX X
SP AN
C O N C
E XIT
SA M PLE
R AN G E TO C A L:LO W
LO W
H IG H
E N TR
E XIT
Allow span gas to enter the sam ple port
at the rear of the analyzer.
W ait until N O X S T B
falls below 0.5 ppm .
This m ay take several
m inutes.
S AM P LE
N O X STB = X XX .X PP M
N O X =X XX .X
< TS T TS T >
C AL
S ETU P
M -P C AL
N O X STB = X XX .X PP M
N O X =X.X XX
E N TR
C O N C
E XIT
M -P C AL
N O X STB = X XX .X PP M
N O X =X.X XX
C O N C
E XIT
The SP AN key now appears
during the transition from
zero to span .
Y ou m ay see both keys.
If either the ZE R O or SP AN
buttons fail to appear see
Section 10 for
troubleshooting tips.
Analyzer continues to
cycle through N O
x
,
N O , and N O
2
m easurem ents
throughout this
procedure .