CS210 Enclosure Humidity Sensor
Remote Monitor
Ensure ideal conditions in enclosures
weather applications water applications energy applications gas flux and turbulence applications infrastructure applications soil applications

Overview

The CS210 enclosure humidity sensor measures relative humidity levels inside environmental enclosures. The sensor is housed inside the enclosure. A Campbell Scientific data logger measures this sensor and stores its data.

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Benefits and Features

  • Allows enclosure RH to be monitored remotely
  • Used to schedule desiccant replacement

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Detailed Description

When CS210's measurements indicates that the RH level inside the enclosure is 40% or more, the desiccant should be replaced with another packet. 

By having the data logger measure the sensor, the measured values can be incorporated into the transmitted data stream of remotely located data loggers. The probe has an 11-in. (28 cm) cable length, which should be adequate to place the probe near the enclosure conduits.

Specifications

Sensor Elan HM2000 series precision bulk-polymer
Relative Humidity Measurement Range 0 to 100% (non-condensing)
RH Output Signal Range 0 to 1.0 Vdc
Accuracy ±3% RH (10 to 90% RH) (at 25°C)
Typical Long-Term Stability Better than 3% RH per year
Response Time 10 seconds for a 30% to 90% RH step change (at 25°C, 90% response)
Current Consumption < 0.5 mA
Supply Voltage 5 ± 0.25 Vdc
Settling Time 10 s
Operating Temperature Range 0° to 50°C
Cable Length 27.9 cm (11 in.)
Sensor Head Dimensions 2.5 x 1.3 x 0.8 cm (1.0 x 0.5 x 0.3 in.)
Weight 9 g (0.3 oz)

Compatibility

Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.

Data Loggers

Product Compatible Note
21X (retired)
CR10 (retired)
CR1000 (retired)
CR10X (retired)
CR200X (retired)
CR206X (retired)
CR211X (retired)
CR216X (retired)
CR23X (retired)
CR295X (retired)
CR300
CR3000 (retired)
CR310
CR350
CR500 (retired)
CR5000 (retired)
CR510 (retired)
CR6
CR800 (retired)
CR850 (retired)
CR9000 (retired)
CR9000X (retired)

Frequently Asked Questions

Number of FAQs related to CS210: 6

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  1. Can the CS210 be connected to a multiplexer?

    Yes. The sensor can be used with a multiplexer that is capable of making a single-ended voltage measurement.

  2. Does the CS210 need to be regularly replaced?

    Campbell Scientific recommends replacing the CS210 after every three to five years of continuous use. Alternatively, if the CS210 probe fails, replace the sensor at that time.

  3. Does the CS210 require any regular maintenance?

    The CS210 does not have any user-serviceable parts, and it does not require any routine maintenance.

  4. What might cause the CS210 to report negative data?

    Incorrect wiring, program errors, or a failed sensor might be the cause.

  5. When should the desiccant inside an enclosure be replaced?

    The desiccant should be replaced when the top colored dot on the humidity indicator card (pn 28878) turns pink; the humidity indicator card is included in the enclosure supply kit that is shipped with each enclosure. If the CS210, Enclosure Humidity Sensor, is used, replace the desiccant when the measured humidity exceeds 35%.

  6. What relative humidity (RH) reading from a CS210 would indicate that it is time to replace the desiccant packs in the enclosure?

    Replace the desiccant packs when the enclosure’s RH level exceeds 40%.

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