Emerson Rosemount 499AOZ Quick Start Guide
Rosemount™ 499AOZ
Dissolved Ozone Sensor
Quick Start Guide
00825-0100-3492, Rev AB
November 2019
Quick Start Guide November 2019
Safety information
CAUTION
Sensor/process application compatibility
The wetted sensor materials may not be compatible with process composition and operating
conditions.
Application compatibility is entirely the operator's responsibility.
CAUTION
Equipment damage
Do not exceed pressure and temperature specifications
Pressure: 65 psig (549 kPa abs) max.
Temperature: 32 to 122 °F (0 to 50 °C)
WARNING
Physical access
Unauthorized personnel may potentially cause significant damage to and/or misconfiguration of end
users’ equipment. This could be intentional or unintentional and needs to be protected against.
Physical security is an important part of any security program and fundamental to protecting your
system. Restrict physical access by unauthorized personnel to protect end users’ assets. This is true for
all systems used within the facility.
Contents
First steps.....................................................................................................................................3
Install........................................................................................................................................... 6
Wire........................................................................................................................................... 10
Calibrate.................................................................................................................................... 15
Maintenance.............................................................................................................................. 17
Accessories................................................................................................................................ 20
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November 2019 Quick Start Guide
1 First steps
1.1 Unpack and inspect
Procedure
1. Inspect the shipping container. If it is damaged, contact the shipper
immediately for instructions.
2. If there is no apparent damage, unpack the container. Be sure all
items shown on the packing list are present. If items are missing,
notify Emerson immediately.
1.2 Product description
Figure 1-1: Rosemount 499AOZ Sensor Parts
A. Membrane retainer
B. Membrane assembly
C. O-ring
D. Cathode
E. Electrolyte fill plug (wrap with pipe tape)
F. Pressure equalizing port
G. Sensor cable (integral cable shown)
1.3
Table 1-1: 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)
Quick Start Guide 3
Specifications
3
Quick Start Guide November 2019
Table 1-1: Sensor Specifications (continued)
Physical characteristics Specifications
Wetted parts Polysulfone, Viton®, Teflon®, and silicone
Cathode Gold (not normally wetted)
Accuracy Accuracy depends on the accuracy of the chemical test used to
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< 20 sec to 90% of final reading at 77 °F (25 °C)
Membrane permeability
connection
Electrolyte volume 0.8 oz. (25 mL), approximately
Electrolyte life 3 months (approximately); for best results, replace electrolyte
Cable length See Ordering information table in the Product Data Sheet for cable
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)
calibrate the sensor.
Defined between 32 and 122 °F (0 and 50 °C)
monthly.
length options.
Open channel: 1 ft./sec (0.3 m/sec)
Low flow cell: 2 to 5 gph (7.6 to 19 L/hr)
Weight/shipping
(1)
weight
1 lb./3 lb. (0.5 kg/1.5 kg)
(1) Weights and shipping weights are rounded up to the nearest whole pound or 0.5 kg.
Table 1-2: Other Specifications
Type PN Wetted
materials
2-in. tee 915240-03 PVC and Buna
N; body is
schedule 80
PVC
Polycarbonate/
Low flow
(1)
cell
915240-04 1-in. NFPT
915240-05 1½-in. NFPT
24091-00 and
24091-01
polyester,
316 stainless
steel, and
silicone
4 Emerson.com/Rosemount
Process
connection
Maximum
temperature
Maximum
pressure
¾-in. NFPT 120 °F (49 °C) 60 psig (515
kPa abs)
Compression
fitting for
158 °F (70 °C) 90 psig
(722 kPa abs)
¼-in. O.D.
tubing or
¼-in. female
national pipe
thread (FNPT)
November 2019 Quick Start Guide
Table 1-2: Other Specifications (continued)
Type PN Wetted
Valved
rotameter
(1) Temperature and pressure specifications for the low flow cell exceed the temperature and
pressure specifications for the sensor.
9390004 for
use with low
flow cell
Flow: 0.5 to 5
gph (1.4 to 19
L/hr)
materials
Acrylic, 316
stainless
steel, and
Viton
Process
connection
¼-in. NFPT
(316 stainless
steel)
Maximum
temperature
150 °F (65 °C) 100 psig (858
Maximum
pressure
kPa abs)
Quick Start Guide 5
Quick Start Guide November 2019
2 Install
Install the sensor in a flowing sample. Keep the sample flow as constant as
possible at a value within the following limits:
Sample flow unit Flow limits
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)
Figure 2-1: Sensor Orientation
Install sensor within 45 degrees of vertical.
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November 2019 Quick Start Guide
Figure 2-2: Flow Through 1½-in. Tee
A. Union coupler
B. 1-in. national pipe thread (NPT), two places
C. Sensor body: Rosemount 499A
D. 1-in. NPT flow cell adapter
E. O-ring 2-222
F. 1½-in. sched 80 CPVC tee body
Quick Start Guide 7
Quick Start Guide November 2019
Figure 2-3: Flow Through 2-in. Tee
A. Union coupler
B. Adapter
C. 1-in. NPT (two places)
D. Sensor body: Rosemount 499A
E. O-ring 2-222
F. 2-in. sched 80 PVC tee body
8 Emerson.com/Rosemount
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