Teledyne 400E - Zero;Span Calibration Checks on Auto Range or Dual Ranges

CALIBRATION PROCEDURES Model 400E Ozone Analyzer
Instruction Manual
178 P/N 04316 Rev: B
7.5.1. Zero/Span Calibration Checks on Auto Range or Dual
Ranges
If the analyzer is being operated in Dual Range mode or Auto Range mode, then
the High and Low ranges must be independently checked.
When the analyzer is in either Dual or Auto Range modes the user must run a
separate calibration procedure for each range. After pressing the CAL, CALZ or
CALS keys the user is prompted for the range that is to be calibrated as seen in the
CALZ example below:
SAMPLE RANGE = 500.0 PPB O3 =XXX.X
< TST TST > CAL
CALZ
CALS SETUP
ZERO CAL M RANGE = 500.0 PPB O3 =XXX.X
< TST TST > ZERO CONC EXIT
WAIT 10
MINUTES
Or until the
reading
stabilizes and
the
ZERO
button
is displayed
Analyzer enters
ZERO CAL
Mode
See Table 5-1 for Z/S
Valve States during
this operating mode
SAMPLE RANGE TO CAL: LOW
LOW
HIGH
ENTR SETUP
SAMPLE RANGE TO CAL: HIGH
LOW HIGH ENTR SETUP
Continue Calibration as per
Standard Procedure
Once this selection is made, the calibration procedure continues as previously
described in Section 7.2. The other range may be calibrated by starting over from
the main SAMPLE display.