The 499AOZ-54-VP belongs to Rosemount’s 499 series of electrochemical sensors. It measures dissolved ozone concentrations specifically. Typical applications include water treatment plants and food processing facilities. The sensor provides a measurement range from 0 to 3 ppm (mg/L) as O3. A VP6 quick disconnect fitting is included on this variant. Therefore, you can remove or replace the sensor without special tools. The 499AOZ-54-VP connects to Rosemount analyzers such as the 1056, 1066-DO, 56, and 5081-A models. Each unit ships with replacement membranes, O-rings, and electrolyte solution.
The 499AOZ-54-VP delivers reliable ozone readings under stable conditions. Linearity sits at ±5% of reading or ±3 ppb, whichever is greater, at 77°F (25°C). Repeatability reaches ±2% of reading at constant temperature. Response time is 30 seconds to reach 90% of the final reading at 25°C. Additionally, accuracy depends entirely on the chemical test used for calibration. Consequently, always use a precise reference method when calibrating.
Pressure tolerance ranges from 0 to 65 psig (101 to 549 kPa absolute). Operating temperature spans 32 to 122°F (0 to 50°C). The membrane permeability connection is defined across this full temperature range. Sample flow requirements vary by installation type. For flow-through applications, use 1 to 5 gpm (3.8 to 19 L/min). For open channels, maintain at least 1 ft./sec (0.3 m/sec). In low flow cells, 2 to 5 gph (7.6 to 19 L/hr) is sufficient.
All wetted parts of the 499AOZ-54-VP are carefully selected for ozone compatibility. Materials include polysulfone, Viton®, Teflon®, and silicone. These materials resist ozone degradation. Therefore, sensor life remains long even in aggressive environments. The process connection uses a standard 1-inch male national pipe thread (MNPT). This fitting simplifies installation into existing pipe tees or flow cells.
The “-VP” suffix in 499AOZ-54-VP indicates the presence of VP6 fittings. This quick disconnect system requires a separate VP interconnecting cable. You can change sensors in seconds without tools. Moreover, the VP6 connection is sealed against moisture. Maximum cable length reaches 300 feet (91 m). For most installations, 100 feet (30.5 m) is standard.
Each new 499AOZ-54-VP includes three replacement membrane assemblies. These membranes are consumable items. Their permeability changes over time due to ozone exposure. Regular replacement maintains measurement accuracy. The three O-rings in the kit also require periodic replacement.
The 499AOZ-54-VP works with several Rosemount analyzers. Specifically, it is compatible with:
Rosemount 1056
Rosemount 1066-DO
Rosemount 56
Rosemount 5081-A
The “-54” ordering option denotes this compatibility. Do not attempt to use the 499AOZ-54-VP with other analyzers. Signal conditioning and polarization voltages differ across models.
First, select a mounting location with representative flow. Ensure the 1-inch MNPT fitting matches your process connection. Next, install the 499AOZ-54-VP into a flow cell or pipe tee. Hand-tighten only; do not over-torque. Then, connect the VP6 interconnecting cable to the sensor. Run the cable to your Rosemount analyzer. Maximum cable length is 300 feet (91 m). After that, fill the sensor with electrolyte. Install a fresh membrane assembly. Finally, polarize the sensor according to your analyzer manual. Allow time for stabilization before calibration.
For open channel installations, maintain a flow velocity of at least 1 ft./sec. Stagnant water produces inaccurate readings. For low flow cells, 2 to 5 gph is adequate. Always keep the membrane clean and free of debris.
499AOZ-54-VP dissolved ozone sensor with VP6 fittings
Three replacement membrane assemblies
Three replacement O-rings
One 4 oz. (125 mL) bottle of electrolyte solution
Storage cap (dry) for shipping
Installation quick-start guide
Note: No certificates, warranty documents, or VP interconnecting cable are included. The cable must be ordered separately. Analyzers are also sold separately.
Shipping Method: Fedex, UPS, DHL
1. What analyzers work with the 499AOZ-54-VP?
The 499AOZ-54-VP works with Rosemount 1056, 1066-DO, 56, and 5081-A analyzers only. Other models are not compatible.
2. How often should I replace the electrolyte?
Replace electrolyte monthly for best results. Maximum electrolyte life is approximately three months for the 499AOZ-54-VP.
3. Does this sensor include the VP6 cable?
No. The 499AOZ-54-VP includes VP6 fittings on the sensor. You must order the VP interconnecting cable separately.
4. What is the maximum cable length from sensor to analyzer?
Maximum cable length is 300 feet (91 m). Standard installations use up to 100 feet (30.5 m) for the 499AOZ-54-VP.
5. Can I use this sensor in a low flow application?
Yes. With a low flow cell, require only 2 to 5 gph (7.6 to 19 L/hr). Open channels need 1 ft./sec minimum flow.
| Brand Name | Rosement |
| Model No. | 499AOZ-54-VP |
| Product Type | Dissolved Ozone Sensor |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
