Rosemount™ 499AOZ
Dissolved Ozone Sensor
Product Data Sheet
00813-0100-3492, Rev AB
October 2019
A trusted sensor for reliably measuring dissolved ozone
The Rosemount 499AOZ dissolved ozone sensor is an easy-to-use amperometric sensor with a rugged
construction. This sensor is ideal for measuring dissolved ozone concentrations in municipal water
filtration, bottling, and food processing plants.
Rosemount 499AOZ October 2019
Overview
Ease of maintenance
■
Extend sensor life with simple membrane and electrolyte
replacement; no special tools needed.
■
Automatic temperature correction with integral Pt-100
resistance temperature device (RTD).
■
Variopol (VP6) cable connector option eliminates cable
twisting and allows for quick sensor replacement.
High performance design
■
Measures dissolved ozone concentrations between 0 and 3
ppm.
■
Operates in process temperatures up to 122 °F (50 °C) and
process pressures up to 65 psig.
■
Polysulfone sensor body with forward and rear facing 1-in.
male national pipe thread (MNPT) process connections.
■
Internal flexible bladder allows automatic pressure
equalization for minimal influence from pressure changes
on sensor response.
Contents
Overview........................................................................................................................................................................................... 2
Ordering information........................................................................................................................................................................ 3
Specifications.................................................................................................................................................................................... 4
Dimensional drawings....................................................................................................................................................................... 6
Accessories......................................................................................................................................................................................11
2 Emerson.com/Rosemount
October 2019 Rosemount 499AOZ
Ordering information
The Rosemount 499AOZ Dissolved Ozone Sensor is ideal for
measuring dissolved ozone concentrations in a variety of water
treatment and food processing applications.The sensor is
available with either an integral cable or Variopol (VP6) quick
disconnect fitting. Three replacement membrane assemblies,
three O-rings, and a 4 oz. (125 mL) bottle of electrolyte solution
are provided with each sensor.
Table 1: Rosemount 499AOZ Ordering Information
Option Description
499AOZ Dissolved Ozone Sensor
Transmitter compatibility
54 Rosemount 1056, 1066-DO, 56, and 5081-A compatible
Cable options
_ Integral 25-ft. (7.6 m) optimum EMI/RFI protected cable
VP Sensor with VP6 fittings (requires VP interconnecting cable)
02 Integral 15-ft. (4.6 m) optimum EMI/RFI protected cable
03 Integral 33-ft. (10 m) optimum EMI/RFI protected cable
50 Integral 50-ft. (15 m) optimum EMI/RFI protected cable
06 Integral 100-ft. (30 m) optimum EMI/RFI protected cable
Special
_ No selection
99 Special (consult factory)
Calibration and conformance certificates - optional level
CC Certificate of Calibration (no test data given)
Rosemount 499AOZ 3
Rosemount 499AOZ October 2019
Table 1: Rosemount 499AOZ Ordering Information (continued)
Option Description
LC Loop Calibration Certificate (sensor and transmitter calibrated together, with test
data)
EC Electronic Calibration Certificate (sensor calibrated against factory instrument, with
test data)
Specifications
Table 2: Sensor Specifications
Physical characteristics Specifications
Range 0 to 3 ppm (mg/L) as O
Pressure 0 to 65 psig (101 to 549 kPa abs)
Temperature (operating) 32 to 122 °F (0 to 50 °C)
Process connection 1-in. male national pipe thread (MNPT)
Wetted parts Polysulfone, Viton®, Teflon®, and silicone
Accuracy Accuracy depends on the accuracy of the chemical test used to calibrate the sensor.
Linearity ±5% of reading or ±3 ppb (whichever is greater) at 77 °F (25 °C)
Repeatability ±2% of reading at constant temperature
Response time 30 sec to 90% of final reading at 25 °C (77 °F)
Membrane permeability connection Defined between 32 and 122 °F (0 and 50 °C)
Electrolyte volume 0.8 oz. (25 mL), approximately
Electrolyte life 3 months (approximately); for best results, replace electrolyte monthly.
Cable length See Table 1 for standard cable lengths.
Cable length (maximum) 300 ft. (91 m), up to 100 ft. (30.5 m) is standard.
Sample flow Flow through: 1 to 5 gpm (3.8 to 19 L/min)
Open channel: 1 ft./sec (0.3 m/sec)
Low flow cell: 2 to 5 gph (7.6 to 19 L/hr)
Weight/shipping weight
(1)
1 lb./3 lb. (0.5 kg/1.5 kg)
3
Weights and shipping weights are rounded up to the nearest whole pound or 0.5 kg.
(1)
Table 3: Other Specifications
Type PN Wetted materials Process
connection
2-in. tee 915240-03 PVC and Buna N;
915240-04 1-in. NFPT
915240-05 1½-in. NFPT
body is schedule 80
PVC
¾-in. NFPT 120 °F (49 °C) 60 psig (515 kPa
Maximum
temperature
Maximum
pressure
abs)
4 Emerson.com/Rosemount