- Choose a location that represents the
environment and process you want to measure. Some factors may make a location
unrepresentative of the process:
- Heat sources
- Materials that absorb H2O2, such as several plastics, rubbers, and sealing materials
- Limited air flow
- The probes withstand bio-decontamination process conditions. For signal cables, you must verify their suitability in the installation environment.
- The probes withstand high air flow rates.
- The probe is intended for use in atmospheric pressure. Do not install the probe in a vacuum.
|CAUTION Note that in installations where only part of the probe is installed inside the process, the temperature outside of the process can have an effect on the probe measurement accuracy, especially if the temperature difference is significant. In installations where part of the probe is outside of the process that is measured, apply adequate thermal insulation around the probe part and cable outside the process.|
When there is H2O2 in the probe's environment, the probe must always be powered on. When powered on, the PEROXCAP sensor is heated, which permits using the probe in condensing H2O2 conditions, maintains measurement performance, and lengthens the probe's lifetime.
Accurate relative humidity (RH) and relative saturation (RS) measurement requires both humidity and temperature data from the same environment. Install the main body of the probe (H2O2 and humidity measurement) and the attached temperature probe in the same measurement environment, approximately 6 ... 10 cm apart from each other, so that the conditions are the same for both elements. Do not install the temperature probe directly above the H2O2 and humidity probe, as moderate heat rising up from the H2O2 and humidity probe body may affect the ambient temperature around the temperature probe.
|CAUTION The filter is an essential part of the measurement. If the filter is broken, dirty, or removed altogether, measurement does
not work as intended.|
Example: Installation through a wall, gland option
Example: Installation through a wall, flange option
Example: Installation entirely in process environment
Mount the H2O2 and humidity probe from the probe body.
Mount the temperature probe from the metal body. Note that the temperature sensor is at the tip of the temperature probe.
The figure shows an example installation using Vaisala spare part wall mounting set (HPP272WALLMOUNT).
Let the signal cable hang loosely so that it makes a bend. This prevents condensing water from running to the probe along the cable. Do not hang the probe by the signal cable.
|Make sure the signal cable you use is suitable for your bio-decontamination process.|