Campbell Scientific 52202 User Manual

52202 Electrically Heated Rain

and Snow Gage

Revision: 5/11

Copyright © 2010-2011

Campbell Scientific, Inc.

Warranty and Assistance

PRODUCTS MANUFACTURED BY CAMPBELL SCIENTIFIC, INC. are
warranted by Campbell Scientific, Inc. (“Campbell”) to be free from defects in
materials and workmanship under normal use and service for twelve (12) months

from date of shipment unless otherwise specified on the corresponding Campbell
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no warranty. Campbell's obligation under this warranty is limited to repairing or
replacing (at Campbell's option) defective products, which shall be the sole and
exclusive remedy under this warranty. The customer shall assume all costs of
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will return such products by surface carrier prepaid within the continental United
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way CIP (Port of Entry) INCOTERM
apply to any Campbell products which have been subjected to modification,
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installation services performed by Campbell such as programming to customer
specifications, electrical connections to products manufactured by Campbell, and
product specific training, is part of Campbell’s product warranty. CAMPBELL
EXPRESSLY DISCLAIMS AND EXCLUDES ANY IMPLIED WARRANTIES
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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®

2010, prepaid. This warranty shall not

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Inc., phone [phone]. After an applications engineer determines the nature
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CAMPBELL SCIENTIFIC, INC.

RMA#_____
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www.campbellsci.com/repair

or faxed to 435-750-9579.

. A completed form

52202 Table of Contents

PDF viewers note: These page numbers refer to the printed version of this document. Use
the Adobe Acrobat® bookmarks tab for links to specific sections.

1. General Description..................................................... 1

2. Specifications ..............................................................1

3. Installation....................................................................2

3.1 Siting.........................................................................................................2

3.2 Mounting ..................................................................................................2

4. Wiring............................................................................ 4

4.1 Heater Wiring ...........................................................................................4

4.2 Wiring to a Pulse Channel ........................................................................4

4.3 Wiring to a Control Port ...........................................................................5

5. Datalogger Programming............................................ 5

5.1 Pulse Channel Example Programs............................................................5

5.1.1 CR1000 Example Program .............................................................6

5.1.2 CR200(X) Series Example Program...............................................6

5.1.3 CR10X Example Program ..............................................................7

5.2 Control Port Example ...............................................................................7

5.2.1 CR1000 Example Program .............................................................8

5.2.2 CR10X Example Program ..............................................................9

6. Troubleshooting ..........................................................9

6.1 Precipitation..............................................................................................9

7. Maintenance ............................................................... 10

Figures

3-1. 52202 Precipitation Gage ........................................................................2

3-2. The CM220 Mounted to a Crossarm.......................................................3

3-3. The CM216 Atop a Stainless-Steel Tripod .............................................3

Tables

4-1. Wiring for Pulse Channel Input ..............................................................4

4-2. Wiring for Control Port Input..................................................................5

5-1. Multipliers ...............................................................................................5

i

52202 Electrically Heated Rain and Snow Gage

1. General Description

RM Young’s Model 52202-L is an electrically heated precipitation gage that
provides year-round measurement of rain or snow. This gage requires a
reliable source of 24 Vac power. It includes a wall transformer that plugs into
a wall socket and provides 24 Vac.

Output is a switch closure for each bucket tip.

A –L after the model number indicates that the cable length is specified when
ordering. Throughout this manual, the rain gage will be referred to as the

52202.

The 260-953 Alter-Type Wind Screen can be used with the 52202 to minimize
the effect of strong winds on the 52202’s measurements.

2. Specifications

Sensor Type: Tipping bucket with magnetic reed switch

NOTE

Accuracy: 2% up to 1 in. h
3% up to 2 in. h

Resolution: 0.004 in. (0.1 mm)

Orifice Diameter: 6.3 in. (16 cm)

Catchment Area: 31 in.

Temperature Range: -20° to +50°C

Humidity Range: 0 to 100%

Power: 18 Watts @ 24 Vac

Contact Rating: 24 Vac/dc, 500 mA maximum

Dimensions
Diameter: 7.3 in (18.5 cm)
Height: 11.8 in. (30 cm)

The black outer jacket of the cable is Santoprene® rubber. This
compound was chosen for its resistance to temperature extremes,
moisture, and UV degradation. However, this jacket will support
combustion in air. It is rated as slow burning when tested
according to U.L. 94 H.B. and will pass FMVSS302. Local fire
codes may preclude its use inside buildings.

-1

(25 mm h-1);

-1

(50 mm h-1)

2

(200 cm2)

1