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Model 300 - Warranty Repair Questionnaire

A PDF version of this form is available here.

Company: *
Contact name: *
Telephone: *
Email: *
Serial #: 
Software Version: 
Describe the Failure Symptoms:
List All Warning Messages:
Test values:
ParameterObserved valueUnitsNominal Range
Sample Flowcm³/min800 ± 10%
Sample TempºC48 ± 2
Bench TempºC48 ± 1
Wheel TempºC68 ± 2
Box TempºCAmbient ± 5
DCPS 2500 ± 200 mV
Cell Press ~1" < ambient pressure
CO MeasmV~4500 mV @ ZERO
CO RefmV~3800 mV @ ZERO
CO SPAN Settingppm 
CO Slope 1.0 ± 0.25
CO OffsetmV 
MR Ratio I at ZERO (~1.20)
MR Ratio II at SPAN. (Dependant on Conc.)
Dark RefmV125 ± 50
Dark MeasmV125 ± 50
Electric Test
a) CO Meas1000 - 4800
b) CO Ref 1000 - 4800
c) MR Ratio 1.18 ± 0.02
d) PPM Conc 40 ppm ± 2 ppm
Is unit leak checked?Yes No
Can you fax a portion of the strip chart pertaining to the problem? Circle pertinent data.
Check these signals and verify correctness. Fax a copy if available.
Look for signals annotated on the diagram.

Enter code to confirm submission
Validation Enter Confirmation Code:    *

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