ATI
Q46P pH System
Part 1 – Introduction
8
O&M Manual
Rev-F (8/17)
1.6
Sensor Features
•
A high volume, dual junction saltbridge to maximize the in-service lifetime of the sensor. The
annular junction provides a large surface area to minimize the chance of fouling. Large
electrolyte volume and dual reference junctions minimize contamination. The saltbridge is
replaceable.
•
An integral preamplifier encapsulated provides a low impedance signal output which ensures
stable readings in noisy environments. Sensor to transmitter separation can be up to 3,000
feet (914 meters).
•
Pt1000 RTD. The temperature element used in ATI sensors is highly accurate and provides
a highly linear output.
•
Available in various configurations including submersible, flow type with quick disconnect,
sanitary, and insertion.
1.7
Q25P Sensor Specifications
Measuring Range
0 to 14.00 pH
Sensitivity
0.01 pH
Stability
0.02 pH per 24 hours, non-cumulative
Wetted Materials
PEEK, ceramic, titanium, glass, Viton, EDPM
(optional: 316 stainless steel body)
Temperature Compensation
Pt1000 RTD
Sensor Cable
6 Conductor (5 are used) plus 2 shields,
15 feet (4.6 meters) standard length
Temperature Range
-5 to +95 °C (23 to 203 °F)
Pressure Range
0 to 100 psig
Maximum Flow Rate
10 feet (3 meters) per second
Sensor to Analyzer Distance
3,000 feet (914 meters) maximum
Options
1” NPT convertible, 1¼” insertion,
1½” or 2” sanitary-style
Weight
1 lb. (0.45 kg)
Notes:
1
.
The type of hardware used to mount the sensor may limit the maximum temperature and
pressure ratings. Please consult the hardware manufacturer’s specifications to obtain the
relevant temperature and pressure rating information.
2
.
The maximum flow rate specification is lower for process solutions with low ionic conductivity
or high suspended solids concentration. High flow rates in low ionic conductivity processes
may cause a measurement error due to static electrical discharge. High flow rates in
processes with high suspended solids concentration may decrease the functional life of the
sensor by eroding the pH-sensitive glass electrode.