Rosemount™ 499ACL-03
Monochloramine Sensor
Quick Start Guide
00825-0300-3499, 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........................................................................................................................................... 5
Wire............................................................................................................................................. 7
Calibrate.................................................................................................................................... 12
Maintenance.............................................................................................................................. 14
Accessories................................................................................................................................ 16
2 Emerson.com/Rosemount
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 499ACL-03 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
Pressure Sensor must drain to open atmosphere. No back pressure.
Temperature (operating) 32 to 122 °F (0 to 50 °C)
Process connection 1-in. male national pipe thread (MNPT)
Wetted parts Noryl®, Viton®, silicone, wood, and Zitex® (PTFE)
Quick Start Guide 3
Specifications
Quick Start Guide November 2019
Table 1-1: Sensor Specifications (continued)
Physical characteristics Specifications
Cathode Gold mesh
Linearity 2% (typical)
Table 1-2: Other Specifications
Type PN Wetted
Low flow cell
with bubble
sweeping
(1)
nozzle
(1) Flow cell must drain to open atmosphere. Do not install the sensor in a pressurized line.
Temperature and pressure specifications for the low flow cell exceed the temperature and
pressure specifications for the sensor.
24091-01 Polycarbon-
materials
ate/
polyester,
316 stainless
steel, and
silicone
Process
connection
Compression
fitting for
¼-in. O.D.
tubing
Maximum
temperature
158 °F (70 °C) 90 psig
Maximum
pressure
(722 kPa abs)
4 Emerson.com/Rosemount
November 2019 Quick Start Guide
2 Install
Install sensor in the low flow cell (PN 24091-01) only. Keep the flow as
constant as possible between 1 and 4 gph (3.8 to 15 L/hr). The flow cell must
drain to open atmosphere.
Figure 2-1: Sensor Orientation
Install sensor within 45 degrees of vertical.
Quick Start Guide 5
Quick Start Guide November 2019
Figure 2-2: Low Flow Cell (PN 24091-00)
A. Inches
B. Millimeters
C. Outlet
D. Inlet
6 Emerson.com/Rosemount
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