Rockwell Automation 1442 Eddy Current Probe System - Manual (Page 13)

Rockwell Automation Publication ICM-UM004C-EN-E - February 2014 13
Installation Chapter 1
• Do not locate above heat emitting objects.
Sensor Installation Environment
Install the sensor at a location that satisfies the following environmental and
installation conditions.
Environmental Conditions
Installation Conditions
• Do not install at a location exposed to rain or other moisture. Moisture can
lead to reduced sensitivity of the sensor, and reduced insulation.
• A target surface area of not less than three times the tip diameter centered
on the sensor is required, as illustrated below.
Feature Specification
Ambient temperature ATEX applications must be in a range of -35…80 °C (-31…176 °F) when devices
are operating.
CSA applications must be in a range of -35…85 °C (-31…185 °F) when devices
are operating.
Other applications must be in a range of -35…177 °C (-31…350 °F) when devices
are operating
Ambient humidity Must be in a range of 30…95% RH (noncondensing) when devices are operating.
Vibrational conditions Must be 10 m/s 2 (1 g) or less at 10…150 Hz. (If the sensor vibrates, an accurate
measurement cannot be made.)
Air cleanliness We recommend an air dust-particle amount of 0.2 mg/m 3 or less.
We recommend an especially low amount of corrosive gasses, such as hydrogen
sulfide, NOx gas, and chlorine, and conductive particles, such as iron dust and
carbon. The allowable amount sof hydrogen sulfide and NOx gas, based on JEIDA-
29 (1979) Class S1, are shown below.
JEIDA: Japanese Electronic Industry Development Association
JEIDA-29 (1979) CLASS S1
Hydrogen sulfide: 0.01 ppm or less, NOx gas: 0.05 ppm or less
(Ambient temperature: 25 °C ± 5 °C (77 °F ± 9 °F), humidity: 40…80%
RH)