Dissolved Oxygen Analyzer
Dissolved oxygen analyzer 7118 model
The dissolved oxygen analyzer 7118 model is a measuring instrument designed to continuously measure the dissolved oxygen concentration of condensate and feed-water used in boiler plants. Since dissolved oxygen is a major factor in corrosion or scale, it must be monitored continuously.
The 7118 model is capable of performing measurement stably by the diaphragm polarography process without contaminating samples. Optional "one-touch calibration" allows the operator to perform calibration easily.
Features
- Diaphragm polarography process
- Excellent maintainability
- Optional "automatic calibration cell unit" allows the operator to perform one-touch calibration.
- Only calibration and sensor wiping are performed as daily maintenance. (one standard maintenance/two months as standard)
- Wide measurement range
- Free power source
- Capable of connecting conventional 7115 cell
| Measurement principle | Diaphragm polarography process | |
|---|---|---|
| Measurement range | (1) LOW range (2) HIGH range * During calibration |
The setting range shall be either (A) or (B) as shown below. The setting range shall be either (A) or (B) as shown below. Fixed to mg/L. Range is switched automatically during calibration. (A) When measurement unit is µg/L Lower range limit … 0.0 µg/L (fixed) Upper range limit … Arbitrary setting is possible in a range from 20.0 to 2,000 µg/L (B) When measurement unit is mg/L Lower range limit … 0.00 mg/L (fixed) Upper range limit … Arbitrary setting is possible in a range from 0.20 to 20.00 mg/L |
| Power source | AC90V to AC264V, 50/60Hz | |
| Consumption electric power | Approx. 10 VA |
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| Outer dimensions | Monitor: 96 (W) × 96 (H) × 105 (D) |
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