TE525-ET Rain Gauge with 6 in. Orifice for ET Station

Overview

The TE525-ET, manufactured by Texas Electronics, has a 6 in. orifice and measures rainfall in 0.01 in. increments. The TE525-ET funnels precipitation into a bucket mechanism that tips when filled to a calibrated level.


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Benefits and Features

  • Accuracy is ±1 percent at rates up to 1 in./hr
  • Compatible with all Campbell Scientific data loggers (including the CR200(X) series)
  • High precision—tips at 0.01-in. increments
  • Compatible with the CWS900-series interfaces, allowing it to be used in a wireless sensor network

The "-ET" version of this product has a cable that terminates in a connector (instead of pigtails) and is the ideal length for attachment to an ET106 or ET107 Weather Station.


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Detailed Description

For this version of the TE525 tipping bucket rain gauge, the cable terminates in a connector and is the ideal length for attachment to the ET107 or ET106 ETo Weather Station. The TE525-ET has a 6" orifice and measures rainfall in 0.01 inch increments. The TE525-ET funnels precipitation into a bucket mechanism that tips when filled to when filled to a calibrated level.


Specifications

Sensor Type Tipping bucket/magnetic reed switch
Material Anodized aluminum
Temperature 0° to 50°C
Resolution 1 tip
Volume per Tip 4.73 ml/tip (0.16 fl. oz/tip)
Rainfall per Tip 0.254 mm (0.01 in.)
Accuracy 1.0% up to 2 in./h (50 mm/h)
Cable 2-conductor shielded
Funnel Collector Diameter 15.4 cm (6.06 in.)
Height 24.1 cm (9.5 in.)
Cable Length 139.7 cm (55 in.)
Tipping Bucket Weight 0.9 kg (2.0 lb)
Cable Weight 0.1 kg (0.2 lb) per 3.05 m (10 ft) length

Compatibility

For this version of the TE525 tipping bucket rain gauge, the cable terminates in a connector and is the ideal length for attachment to the ET107 or ET106 ETo Weather Station.



Frequently Asked Questions

Number of FAQs related to TE525-ET: 15

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  1. The CS705 Tipping Bucket Snowfall Adapter cannot be used directly with the TE525-L or TE525MM-L because of the funnel size. To make the rain gages compatible, they can either be sent to Campbell Scientific to be converted to a TE525WS-L, or an 8 inch funnel can be installed. If the funnel is used, see the instruction manual for the appropriate multipliers, as they will change.

  2. Replacement screens are listed in the Replacement Parts section of TE525-L Ordering Information page

    Replacement funnels can be ordered by contacting Campbell Scientific.

  3. A TE525-L can be converted to a TE525MM-L and vice versa because the inner tipping mechanisms are the same. To convert a TE525-L or TE525MM-L to a TE525WS-L, the rain gage must be sent in to Campbell Scientific to change the tipping mechanism. If an 8 inch funnel is used on a TE525-L or TE525MM-L without changing the tipping mechanism, the multipliers for the rain measurement will change. For information about these multipliers, see the TE525 Instruction Manual

  4. The TE525-L and TE525WS-L have a 0.01 in. tip.
  5. To incorporate a sensor that is compatible with wireless sensor interfaces into a wireless network, a CWS900-series wireless sensor interface is needed, as well as an A205 CWS-to-PC interface to configure it. 

  6. The 260-953 Alter-type rain gage wind screen consists of 32 heavy metal leaves that hang freely and swing as the wind moves past them. The swinging leaves act as a wind damper and help minimize the effect of wind on the rain measurements without adding additional turbulence.

  7. The most common errors are either that the rain gage appears to have drifted out of calibration or that the tips are not being correctly recorded by the data logger. 

  8. When a rain gage is out of calibration, it is usually because of the buildup of dirt and grime on the internal surfaces of the tipping bucket mechanism. Cleaning the internal surfaces usually brings the rain gage back into calibration. It is also possible that a rain gage is out of calibration because it is no longer level.

    To minimize the possible occurrence of calibration errors, perform routine cleaning and maintenance of the rain gage at least once every three months. The environmental conditions at a particular site may require a facility to perform cleaning, leveling, and maintenance on a much more frequent schedule.

  9. This depends on the information contained in the calibration sheet:

    • If the calibration sheet contains coefficient information, Campbell Scientific keeps a copy, and a replacement copy can be requested.
    • If the calibration sheet does not contain coefficients, Campbell Scientific does not keep a copy. It may be possible to contact the original manufacturer for a replacement copy.

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