Image unavailable
Image unavailable
Rosemount
Rosemount 499 Series DO/Ozone/Chlorine Sensors
Quote on request
No online payment · add lines to RFQ BOM
Amperometric DO/ozone/chlorine sensors for Rosemount analyzers. RFQ + selection help.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Measuring range
Dissolved oxygen 0 to 20 ppm (mg/L) as O2 (499ADO); ppb-level use 499ATrDO; series also covers ozone/chlorine amperometric variants
Accuracy
±0.2 ppm at 77 °F (25 °C); linearity 2% typical; repeatability ±0.5% of reading at 25 °C
Output
Amperometric sensor signal to Rosemount 1056/1066-DO/56/5081-A transmitters
Supply
Powered/conditioned by compatible Rosemount liquid-analysis transmitter
Process connection
1-in male NPT
Wetted parts
Noryl, Viton, EPDM, Teflon, silicone
Fits amperometric water-quality sensing where you need a Rosemount 499 Series sensor for dissolved oxygen, ozone, or chlorine paired with Rosemount 1056/1066/5081/1057 transmitters.
Key advantages
- Measurements — DO (ppm/ppb class), ozone, free/total chlorine — variant dependent
- Technology — Membrane amperometric with replaceable membranes/electrolyte
- Compatibility — Rosemount 1056 / 1066 / 5081 / 1057 analyzers
- Install — Insertion / flow-cell styles per 499 variant
- Service — Field-replaceable membrane kits per OEM
Typical applications
- DO control in water treatment.
- Ozone residual monitoring.
- Free/total chlorine amperometric loops.
Selection guide
- Variant — DO vs ozone vs chlorine
- Range — ppm vs ppb DO
- Mount — Insertion vs flow cell
- Transmitter — 1056/1066/5081/1057
Common mistakes
- Mismatched sensor to transmitter board.
- Skipping membrane/electrolyte maintenance.
- Wrong flow-cell velocity for Cl2.
When to RFQ / what to tell us
- 499 variant, mount, transmitter.
- Quantity and ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 30765 |
| Brand | Rosemount / Emerson |
| Model | 499 Series |
| Product type | Dissolved Oxygen / Ozone / Chlorine Sensor |
| Type | Amperometric sensors for dissolved oxygen, ozone, or chlorine |
| Measurements | DO (ppm/ppb class), ozone, free/total chlorine — sensor variant dependent |
| Compatibility | Pairs with Rosemount 1056/1066/5081/1057 liquid analysis transmitters |
| Construction | Membrane amperometric sensing with replaceable membranes/electrolyte per OEM |
| Install | Insertion / flow-cell styles per 499 variant |
Documents
FAQ
Q: What does 499 measure? A: Dissolved oxygen, ozone, or chlorine by sensor variant.
Q: Transmitter pairs? A: Rosemount 1056, 1066, 5081, 1057 class.
Q: What should I send for a quote? A: Variant/mount/transmitter, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Measuring range | Dissolved oxygen 0 to 20 ppm (mg/L) as O2 (499ADO); ppb-level use 499ATrDO; series also covers ozone/chlorine amperometric variants |
| Accuracy | ±0.2 ppm at 77 °F (25 °C); linearity 2% typical; repeatability ±0.5% of reading at 25 °C |
| Output | Amperometric sensor signal to Rosemount 1056/1066-DO/56/5081-A transmitters |
| Supply | Powered/conditioned by compatible Rosemount liquid-analysis transmitter |
| Process connection | 1-in male NPT |
| Wetted parts | Noryl, Viton, EPDM, Teflon, silicone |
| Ambient temperature | Operating 32 to 122 °F (0 to 50 °C); pressure 0 to 65 psig (101 to 549 kPa abs) |
| Mounting | Immersion in aeration basins or flow cells; Variopol VP6 quick-disconnect option |
| Sensor type | Membrane-covered amperometric DO sensor with integral Pt100 RTD; gold cathode |
| Notes | SKU covers 499 Series DO/Ozone/Chlorine; primary OEM PDS harvested is 499ADO (00813-0100-3491). Sister ozone/chlorine sheets on Emerson. Specs from Emerson PDS + product page. |
| Response Time | <20 s to 90% of final reading (0 to 2 ppm) at 77 °F (25 °C) |
| Weight | 1 lb / shipping 3 lb (0.5 / 1.5 kg) |