Zero/Span Calibration On Auto Range Or Dual Ranges; Use Of Zero/Span Valves With Remote Contact Closure - Teledyne 300E Instruction Manual

Model 300E Carbon Monoxide Analyzer
Instruction Manual

7.3.1. Zero/Span Calibration 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 calibrated.
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:
Analyzer enters
ZERO CAL Mode
See Table 5-1 for Z/S
Valve States during
this operating mode
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.

7.3.2. Use of Zero/Span Valves with Remote Contact Closure

Contact closures for controlling calibration are located on the rear panel CONTROL
IN connector. Instructions for setup and use of these contacts are found in
Section 6.7.2. When the contacts are closed for at least 5 seconds, the instrument
switches into zero or span mode. The remote calibration contact closures may be
activated in any order. It is recommended that contact closures remain closed for
at least 10 minutes to establish a reliable reading.
The instrument will stay in the selected mode for as long as the contacts remain
closed. If calibration is enabled, the M300E will re-calibrate when the contact is
opened, then go into SAMPLE mode. If calibration is disabled, the instrument will
return to SAMPLE mode, leaving the calibration unchanged.
P/N 04288 REV: A
SAMPLE RANGE = 50.0 PPM
< TST TST > CAL CALZ CALS
SAMPLE RANGE TO CAL: LOW
LOW HIGH
RANGE TO CAL: HIGH
SAMPLE
LOW HIGH
ZERO CAL M RANGE = 50.0 PP
< TST TST > ZERO CONC
Continue Calibration as per
Standard Procedure
CALIBRATION PROCEDURES
CO =??.??
SETUP
ENTR SETUP
ENTR SETUP
CO =1.23
EXIT
WAIT 10
MINUTES
Or until the
reading
stabilizes and
the ZERO button
is displayed
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