Cleanroom monitoring

The cleanroom configuration pairs a differential pressure sensor with a temperature and humidity sensor and samples every few seconds. If any of the three drifts outside its safe zone, that reading turns red and, once the delay expires, the alarm sounds.

Mount it at the room entrance and every person who walks in performs a check on the way past. Green everywhere means the room is within specification.

Logged far more densely than the standard asks

All three variables are logged every few minutes, creating a permanent record of pressure, temperature and humidity that comfortably exceeds the logging expectations in ISO 14644-1 and supports the environmental documentation required under USP 797 and USP 800.

Sensor performance

Temperature sensor -20 to 80 °C (±0.3 °C). Relative humidity 0 to 100 % (±3.0 %). Differential pressure ±1 in wg (±0.002 in wg). Each sensor converts its reading to a digital value before transmitting, so accuracy holds even with the sensor up to about 200 feet from the display. NIST-traceable calibration certificates are available.

Alarm paths

The high and low alarm for each condition triggers the internal buzzer and flashing screen, and closes the relay so an auto-dialer or a loud external alarm can take over. TView adds text and email to several recipients using your own mail server, not a vendor cloud.

History without a download

Touch pressure, temperature or humidity and the chart for that variable appears immediately. At a ten minute interval more than a year and a half of history is stored on the instrument and can be scrolled, zoomed out for trends, or zoomed in on a single reading.

Validation documents

Installation and operational qualification protocols are published for cleanroom deployments, along with a specification sheet and a cut sheet for the drawing set.