The sensor for measuring humidity in an environment with the risk of water flowing down, condensation of humidity, etc., the C-RQ-0400I-05 (05 - the cable length 0.5 m) consists of a box (like the C-RQ-0400I sensor) and an external sensor, which is located in a small plastic box with a moulded cable outlet into the module.
An example of connection is shown e.g. in the Chapter on Measurement of outdoor relative humidity and temperature with a detached sensor.
The sensor should be fitted through an opening in the plastic cover; the actual sensor is located under a covering membrane, which prevents direct contact of the sensor with flowing water.
The characteristics of the temperature and humidity sensor, especially with regard to adverse climatic conditions, are listed in the section describing the C-RQ-0400I module.
Basic parameters
Resolution of temperature/humidity |
0.1 °C / 0.1 %RH |
Maximum temperature measurement error |
± 0.5 °C (20 ÷ 40 °C), ± 1 °C (0 ÷ 60 °C) |
Maximum humidity measurement error |
(+25 °C) ± 3 % (20 ÷ 80 %RH) |
The operating temperature/relative humidity range of the sensing part |
maximum 80 °C, see the chart in Chapter on the C-RQ-0400I. |
The operating temperature range of the electronics in the head. |
-20 ÷ +60 °C |
The range of the storage temperature/relative humidity |
-20 ÷ +60 °C / 20 ÷ 80 %RH |
Ingress protection of the box / separated sensor: |
IP65 / IP67 |
Terminal block |
|
The gland/max. Ø cable |
PG9/8 mm |
Fig. 1. The layout and marking of the terminals in the C-RQ-0400I-xx module.
Fig. 2. Mechanical design of the C-RQ-0400I-xx, module, the placement of the terminals and glands for cables
Notes
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The glands are fitted in the factory with plugs, which should be removed if necessary. The unused glands provide sufficient protection of the module.
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The module is fitted with a screwless terminal block of the Push In type.
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The connector in the bottom left corner is used for connecting the combined temperature and humidity sensor for variants of the C-RQ-0400H-P and the C-RQ-0400I modules; here it is not used. The cable of the external sensor is connected to the terminals 1 to 4.