CorrSen Sensors

Sensors consist of four metal tracks with tightly controlled thickness applied on patent-protected thermally conductive but electrically insulating substrate. Three measuring tracks provide simultaneous information about corrosion loss allowing for statistical treatment and better precision of the measurement.

Three types of sensors are available:Three types of sensors are available:

1

Thin and highly sensitive sensors for less corrosive indoor environments

2

Robust and durable sensors for outdoor and harsh indoor environments

3

Sensors designed for continuous corrosion monitoring under insulation

3 types of sensors are available:

1

Thin and highly sensitive sensors for less corrosive indoor environments
2

Robust sensors for outdoor and harsh indoor environments
3

Sensors on cable for monitoring locations with limited access.

How to choose sensor material?

If you want to assess the atmospheric corrosivity category according to ISO 9223 (outdoor; C1‒CX) or ISO 11844-1 (indoor; IC1‒IC5), choose the material specified in the standard.
If you want to monitor air corrosivity towards a specific material, choose a sensor with the composition similar to the material of your interest.

Thickness according to expected corrosivity

In less corrosive environments, you obtain the best sensitivity and reasonable longevity when using the lower corrosivity CorrSen sensors.
In harsh environments, the high corrosivity CorrSen sensors should be used.

Metal	Lower corrosivity	Sensitivity	High corrosivity	Sensitivity
Carbon steel	Fe-50	0,05 µm	Fe-250	0,1 µm
Zinc	Zn-50	0,05 µm	Zn-250	0,1 µm
Aluminum	Al-0.5	0,2 nm	Al-20	0,03 µm
Copper	Cu-0.5	0,2 nm	Cu-12	0,02 µm
Silver	Ag-0.5	0,2 nm	–	–
Lead	–	0,2 nm	Pb-25	0,03 µm
Stainless steel A2 (304)	–	–	SSA2-25	0,03 µm
Stainless steel A4 (316)	–	–	SSA4-25	0,03 µm

Sensors made of other materials as well as flexible, pretreated, pre-corroded and multi-material sensors for special use can be manufactured on request.

Compact version vs. sensors on a cable

Is the monitoring site easily accessible and large enough to place there the whole logger? If so, choose the basic sensor modification with a sensor inserted to the logger.
Otherwise, choose the sensor soldered on a up to 5-meter long cable. Note that the temperature and relative humidity measurement is not possible for this modification.

How to choose sensor material?

If you want to assess the atmospheric corrosivity category according to ISO 9223 (outdoor; C1‒CX) or ISO 11844-1 (indoor; IC1‒IC5), choose the material specified in the standard.
If you want to monitor air corrosivity towards a specific material, choose a sensor with the composition similar to the material of your interest.

Thickness according to expected corrosivity

In less corrosive environments, you obtain the best sensitivity and reasonable longevity when using the lower corrosivity CorrSen sensors.
In harsh environments, the high corrosivity CorrSen sensors should be used.

Metal	Lower corrosivity	High corrosivity	Sensors on cable
Carbon steel	Fe-50	Fe-250	Fe-50/C, Fe-250/C
Zinc	Zn-50	Zn-250	Zn-50/C, Zn-250/C
Aluminum	Al-0.5	Al-20	Al-0.5/C, Al-20/C
Copper	Cu-0.5	Cu-12	Cu-0.5/C, Cu-12/C
Silver	Ag-0.5	–	Ag-0.5/C
Lead	Pb-0.4	Pb-25	Pb-0.4/C, Pb-25/C
Stainless steel	–	SS-25	SS-25/C

Sensors made of other materials as well as flexible, pretreated, pre-corroded and multi-material sensors for special use can be manufactured on request.

Compact version vs. sensors on a cable

Is the monitoring site easily accessible and large enough to place there the whole logger? If so, choose the basic sensor modification with a sensor inserted to the logger.
Otherwise, choose the sensor soldered on a 2-meter long cable. Note that the temperature and relative humidity measurement is not possible for this modification.

Contact us

[email protected]
Gema s.r.o., Na Tržišti 793, 273 51 Unhošť,
CIN: 47120584,
VAT ID: CZ24120584