Accessories / Part Numbers; Technical Services - VWR DO220 Manuel D'instructions

Symptom
Dissolved Oxygen
values display
Over or Undr on
Run screen.
A c c e s s o r i e s / P a r t N u m b e r s
Part Number
664-0168
664-0169
664-0170
664-0171
664-0172
664-0173
664-0174
*All cables include optical-based dissolved oxygen sensor and
temperature sensor.
T e c h n i c a l S e r v i c e s
Web Resources
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• Complete technical service contact information
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and related products
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Contact us For information or technical assistance contact your local
VWR representative or visit www.vwr.com.
1. Sample dissolved oxygen concentration
is more than 20 mg/L or 200%, or
less than 0.0 mg/L or 0.0%.
2. Verify temperature readings are accurate.
3. DO sensor not properly calibrated,
recalibrate the sensor.
4. Check sensor cap. Clean, rehydrate or
replace as necessary. Recalibrate.
5. Contact Tech Support.
DO220 Handheld, instrument only with carrying
case and manual
DO220 Handheld instrument and 1-M probe/
cable*, carrying case and manual
DO220 Handheld instrument and 4-M probe/
cable*, carrying case and manual
1 meter probe and cable assembly*
4 meter probe and cable assembly*
Replacement hard-sided carrying case
Replacement Optical DO Sensor Cap
15
Possible Solution
Description