Arthur Grillo PFT25 Bedienings- en installatie-instructies - Pagina 13

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Warranty

Warranty and liability claims for personal and property damage are excluded if they are

caused by one or more of the following reasons:

•

Improper use of the device.

•

Improper installation, commissioning, operation and maintenance of the device.

•

Unauthorized modifications to the device beyond the intended use.

•

Disasters due to external influences and force majeure.

Troubleshooting

Description

Display does not show anything Check electrical connection

Measurement stays zero

Measuring error

Disposal

Dispose of parts so as not to endanger human health or the environment. Follow the laws

in the country of use for disposing of electronic components and devices during disposal.

10.

Technical details

Sensor:

Optional

sensor protection:

(Order no.: 72194)

Relative humidity:

Resolution:

Characteristics:

Reaction time:

Long term stability:

Reproducibility:

Tolerance:

Maßnahme

Check the sensor element

Contact manufacturer

Single-chip sensor for relative humidity and temperature with

digital signal transmission and calibration memory on the chip.

Sensor tip on the sensor element with a filter made of sintered

bronze for protection against direct moisture and dust (filter

class CA75)

12 bits

linear (digital linearization)

approx. 4 seconds (63% time, slightly moving air)

typical <1% rh per year

Standard sensor:

±0.1% rh

±3.5% rh at 30...70% rh

±5.0% rh at 0...29% rh

±5.0% rh at 71...100% rh

Doc.-no.: PFT_01_EN

Sensor with restricted tolerance:

±0.1% rh

±2.0% rh at 10...90 % rh

±4.0% rh at 0...9% rh

±4.0% rh at 91...100% rh

Issue: 05/2017

OPERATION