Thermo Scientific AquaSensors
™
AnalogPlus
™
Differential pH Sensor User Guide
8
Thermo Scientific AquaSensors AV88 and P99 analyzers have a number of options to provide the right
features at the right price for an application. Common part numbers are shown in the table below.
Analyzers Description
Part
Number
AV88 Universal Analyzer
2 outputs, 2 relays, PID. AC power. ¼ DIN.
2 outputs, PID, Modbus. 24VDC. ¼ DIN.
AV88AB0C2
AV88AB4A1
P99 pH/ORP Analyzer
2 outputs, 3 relays. AC power. ½ DIN.
P99
2.3.
Specifications
All AnalogPlus pH sensors are rated for continuous use in industrial and municipal process applications.
Construction variables of electrode type, ground rod material, sensor body material, temperature element
and cable length are described in Sections 6 and 7 of this manual. Specifications shown here are general
in nature and assume that the proper materials have been chosen for the application.
Measuring Range…………………...
0 to 14 pH
Resolution……… ………………..….
0.01 pH
Operating Temperature……………...
Maximum Pressure…………………..
Maximum Flow Rate……..…………..
PEEK® Sensor
CPVC Sensor
-5
°
C to 95
°
C
-5
°
C to 75
°
C
100 PSIG @ 95
°
C
85 PSIG @ 75
°
C
10 ft/second
10 ft/second
Standard Sensor Cable Lengths……. 10 ft, 20 ft and 30 ft
Maximum Transmission Distance….. 3,000 ft (914 m)
The sensor will arrive with a protective cap that keeps the sensor hydrated.
For short-term storage, put several drops of Thermo Scientific AquaSensors storage solution on the
absorbent material in the protective cap and replace the cap on the sensor. This keeps the process
electrode and salt bridge moist.
For extended storage, repeat the above short-term storage procedure every 2 to 4 weeks, depending
on the surrounding environmental conditions.
Make sure all wetted materials are compatible with process chemicals at operating temperatures and
pressures.
