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Dissolved oxygen meters, handheld, with optical sensor, DO 220 / DO 220 M

Supplier: VWR Collection
These compact, portable meters measure dissolved oxygen and temperature using a smart optical sensor. Values are transmitted from and to the sensor in modified digital RS485 format. Ideal for field measurements.

  • IP 67 waterproof housing, segmented LCD showing DO and temperature values simultaneously
  • 50 or 250 data sets reviewable memory
  • Sensor cap coefficients to be manually entered into instrument by end user; sensor cap change after 12 - 16 months
  • 100 hours battery life; low battery indicator; auto-shut off function (after 30 minutes of non use)
  • Electrode offset recognition; auto-lock and hold of readings on display

Additional functions of DO 220 M:
- Extended memory capacity (250 data sets)
- Waterproof USB port for transferring data to a PC (no software required)
- Real time clock for saved data
- Recalibration reminder (selectable from 0 to 60 days)

Warranty: 3 years for instruments and 6 months for electrodes/probes/cables.
Delivery information: Supplied in a carrying case with optical DO sensor incl. 1 m or 4 m cable.



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ORDER

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Description Pk VWR Catalog Number Quantity
Handheld DO meter DO 220, meter only without sensor and cable 1 664-0168
Handheld DO meter DO 220, with optical sensor with 1 m cable 1 664-0169
Handheld DO meter DO 220, with optical sensor with 4 m cable 1 664-0170
Handheld DO meter DO 220 M, with optical sensor with 1 m cable 1 664-0226
Handheld DO meter DO 220 M, with optical sensor with 4 m cable 1 664-0227
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SPECIFICATIONS

Model DO 220 DO 220 M
DO - concentration (mg/l) 0 - 20
DO - resolution (mg/l) 0,1%; 0,01
DO - accuracy ±1,5% of the reading or ±1,5 % (air saturation), whichever is greater
±1,5% of the reading or ±0,15 ppm, whichever is greater
DO - calibration Saturated air; 1 or 2 points with a zero % value
DO - % saturation 0 - 200
DO - barometric pressure range 375 - 825 mmHg
Temperature range (°C) 0...50
Temperature resolution (°C) 0,1
Temperature accuracy (°C) ±0,3
Data logging - capacity 50 data sets 250 data sets
Display Segmented LCD
Outputs - Micro USB
Power supply One 9 V battery
W×D×H (mm) 78×37×184
Weight (kg) 0,272
Compliance IP 67

ACCESSORIES

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Accessories
Description Pk VWR Catalog Number Quantity
Carrying case, hard-sided 1 664-0173
DO/°C sensor with 1 m cable, 220-1 1 664-0171
DO/°C sensor with 4 m cable, 220-4 1 664-0172
Replacement sensor cap 1 664-0174
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