SURVEYOR PLUS

Real Time Corrosion Monitoring

SURVEYOR PLUS™ M is a multi-parameter monitoring system for continuous environmental control and early risk detection. It tracks humidity, temperature, and corrosion (via replaceable thin-film QCM sensors), with optional differential pressure monitoring. The system displays copper and silver corrosion rates based on ISA classifications (G1–GX), helping prevent damage in critical environments such as refineries, chemical plants, control rooms, computer rooms, museums, and cleanrooms.
Request a Quote

SURVEYOR PLUS

Real Time Corrosion Monitoring

SURVEYOR PLUS™ M is a multi-parameter monitoring system for continuous environmental control and early risk detection. It measures humidity, temperature, and corrosion using replaceable thin-film QCM sensors, with optional differential pressure monitoring. The system displays copper and silver corrosion rates based on ISA classifications (G1–GX), helping protect critical environments such as refineries, chemical plants, control rooms, data centers, museums, and cleanrooms.
Request a Quote

Applications

Data Center

Pharmaceutical

Table: ISA Corrosion Degree

Level Degree Model
G1 Mild The environment is sufficiently controlled that corrosion is not a factor affecting equipment reliability
G2 Moderate The impact of corrosion in the environment can be measured and corrosion may be a factor affecting the reliability of equipment
G3 Harsh The possibility of corrosion in the environment is very high. After further evaluation of the severity of the environment.
GX Severe Only specially designed equipment can survive in such an environment. The technical specification of this class of equipment is a point of discussion between the customer and the supplier .

Technical Specifications

Concentration Level G1 G2 G3 G4
Concentration Level < 300 < 1,000 < 2,000 ≥ 2,000
Siliver coupon reaction rate (Å) < 200 < 1,000 < 2,000 ≥ 2,000
Common gas type Common gas concentration (ppb)
(H²S) <3 <10 <50 ≥50
(SO²) <10 <100 <300 ≥300
(Cl²) <1 <2 <10 ≥10
(NO²) <50 <125 <1,250 ≥1,250
(HF) <1 <2 <10 ≥10
(NH³) <500 <1,000 <25,000 ≥25,000
(O³) <2 <25 <100 ≥100

Downloads

121 KB

Download

186 MB

Download

Questions?

Our experts are here for you!

Contact Us