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Rosemount
Rosemount 499 Series DO/Ozone/Chlorine Sensors
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Amperometric 499ADO/AOZ/ACL; 0–20 ppm DO; 1 in MNPT. RFQ + selection help.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
499ADO DO: 0–20 ppm O₂; 499AOZ ozone: 0–3 ppm O₃; 499ACL-01 free chlorine: 0–10 ppm Cl₂ (series family)
Accuracy
499ADO ±0.2 ppm at 25 °C; 499AOZ depends on chemical calibration test; linearity/repeatability per respective PDS
Output
Amperometric sensor signal to Rosemount 1056/1066-DO/56/5081-A transmitters (option 54)
Process connection
1-in MNPT (forward and rear facing)
Wetted parts
499ADO: Noryl, Viton, EPDM, Teflon, silicone; gold cathode
Media temperature
0 to 50 °C (32 to 122 °F) operating
Fits amperometric water-quality sensing where you need a Rosemount 499 Series sensor covering DO to 20 ppm, ozone to 3 ppm, or free chlorine to 10 ppm with 1-in MNPT process connections into Rosemount analyzers.
Key advantages
- Family ranges — 499ADO 0–20 ppm O₂; 499AOZ 0–3 ppm O₃; 499ACL-01 0–10 ppm Cl₂
- Accuracy (499ADO) — ±0.2 ppm at 25 °C class
- Process T — 0 to 50 °C operating
- Connection — 1-in MNPT forward and rear facing
- Transmitters — 1056 / 1066-DO / 56 / 5081-A (option 54)
Typical applications
- DO control in aeration.
- Ozone residual loops.
- Free-chlorine amperometric monitoring.
Selection guide
- Variant — ADO vs AOZ vs ACL
- Transmitter board — Matching DO/Cl2 option
- Mount — Insertion orientation
- Membrane kits — Service plan
Common mistakes
- Mismatched sensor to transmitter option.
- Skipping membrane/electrolyte service.
- Operating above 50 °C media.
When to RFQ / what to tell us
- 499 variant, transmitter, cable.
- Quantity and ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 30840 |
| Brand | Rosemount / Emerson |
| Model | 499 Series |
| Product type | Dissolved Oxygen / Ozone / Chlorine Sensor |
| Measuring range | 499ADO DO: 0–20 ppm O₂; 499AOZ ozone: 0–3 ppm O₃; 499ACL-01 free chlorine: 0–10 ppm Cl₂ (series family) |
| Accuracy | 499ADO ±0.2 ppm at 25 °C; 499AOZ depends on chemical calibration test; linearity/repeatability per respective PDS |
| Output signal | Amperometric sensor signal to Rosemount 1056/1066-DO/56/5081-A transmitters (option 54) |
| Process connection | 1-in MNPT (forward and rear facing) |
| Media temperature | 0 to 50 °C (32 to 122 °F) operating |
| Wetted materials | 499ADO: Noryl, Viton, EPDM, Teflon, silicone; gold cathode |
Documents
FAQ
Q: DO range? A: 499ADO covers 0–20 ppm O₂.
Q: Connection? A: 1-in MNPT forward and rear facing.
Q: What should I send for a quote? A: Variant/transmitter, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | 499ADO DO: 0–20 ppm O₂; 499AOZ ozone: 0–3 ppm O₃; 499ACL-01 free chlorine: 0–10 ppm Cl₂ (series family) |
| Accuracy | 499ADO ±0.2 ppm at 25 °C; 499AOZ depends on chemical calibration test; linearity/repeatability per respective PDS |
| Output | Amperometric sensor signal to Rosemount 1056/1066-DO/56/5081-A transmitters (option 54) |
| Process connection | 1-in MNPT (forward and rear facing) |
| Wetted parts | 499ADO: Noryl, Viton, EPDM, Teflon, silicone; gold cathode |
| Media temperature | 0 to 50 °C (32 to 122 °F) operating |
| Mounting | Immersion/sidestream/flow cell; Variopol VP6 cable option |
| Sensor type | Amperometric membrane sensors with integral Pt-100 RTD |
| Notes | Series SKU covers 499ADO/499AOZ/499ACL. Primary PDS 00813-0100-3491 (499ADO) plus sibling ozone/chlorine PDS harvested. Specs from Emerson liquid-analysis PDS. |