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Campbell 380 Instruction Manual

Manual is about: Met One Rain Gage

Summary of 380

  • Page 1

    Met one rain gage models 380 and 385 revision: 2/08 c o p y r i g h t © 1 9 9 3 - 2 0 0 8 c a m p b e l l s c i e n t i f i c , i n c ..

  • Page 2: Warranty and Assistance

    Warranty and assistance the met one rain gage models 380 and 385 are warranted by campbell scientific, inc. To be free from defects in materials and workmanship under normal use and service for twelve (12) months from date of shipment unless specified otherwise. Batteries have no warranty. Campbell ...

  • Page 3

    Met one rain gage 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. Introduction ..................................................................1 2. Specifications ............

  • Page 4

    Met one rain gage table of contents ii tables 4-1. Wiring for pulse channel input.............................................................. 9 4-2. Wiring for control port input................................................................. 9 7-1. Volume of water for recalibration ................

  • Page 5: 1.  Introduction

    Met one rain gage models 380 and 385 1. Introduction met one's tipping bucket rain or snow gage is used to measure rain or snow water equivalent on a continuous basis. The model 380 rain gage is intended to measure rainfall during above freezing conditions. The model 385 ac heated rain gage provides...

  • Page 6: 2.  Specifications

    Met one rain gage models 380 and 385 2. Specifications model 380/385 rain gage funnel: 12 inch (30.5 cm) accuracy: ± 0.5% ± 2.0% resolution: 380/385 0.01 inch environmental conditions: temperature: 0°c to +50°c humidity: 0 to 100% dimensions: weight: 7 pounds (3.2 kg) w/ 50 ft. Signal cable height: ...

  • Page 7

    Met one rain gage models 380 and 385 the rain or snow gage should be placed away from objects that obstruct wind. The minimum distance should be 2 times the height of the obstruction or more. 3.2 mounting the rain or snow gage is designed to mount on a flat surface. Three equally spaced adjustable m...

  • Page 8

    Met one rain gage models 380 and 385 24” 8” figure 3-1. Typical snow gage installation user-supplied ac power termination box user-supplied ac power and conduit for heated snow gage user-supplied concrete pad power cable cm240 mounting bracket level adjustments 1.5” ips pipe user-supplied 1” conduit...

  • Page 9

    Met one rain gage models 380 and 385 3.5” 1.5” 24” 14” figure 3-2. Pedestal base options 5.

  • Page 10

    Met one rain gage models 380 and 385 p/n 2196 (2) plcs. 8” 6” cut shield off flush to jacket 3/8” 3/8” white white shield black black clear heat shrink heat shrink (2) plcs. P/n 9661 figure 3-3. Connecting signal cable leads attach white of (signal cable) to pin 3 heat shrink (2) plcs. P/n 7805 beld...

  • Page 11

    Met one rain gage models 380 and 385 remove primary screen anticipated if snow is figure 3-4. Remove screen if snow is anticipated 7.

  • Page 12: 4.  Wiring

    Met one rain gage models 380 and 385 ! " # $ $ %% &' () * + %'$ , " figure 3-5. Connecting heater wires 4. Wiring disconnect heater power before attempting to service or repair this equipment. Failure to do so may result in personal injury or death due to electrocution. Warning the black (signal) le...

  • Page 13

    Met one rain gage models 380 and 385 4.1 heater wiring attach the power plug supplied with the model 385 by following the instructions supplied with the plug. The electric heated snow gage requires 115vac (50/60hz), 5 amps maximum, to operate the heater. (if supplying your own signal or power cable,...

  • Page 14: 5.  Datalogger Programming

    Met one rain gage models 380 and 385 5. Datalogger programming 5.1 cr10x programming this section is for users who write their own programs. A datalogger program to measure this sensor can be created using campbell scientific’s short cut program builder software. You do not need to read this section...

  • Page 15

    Met one rain gage models 380 and 385 5.1.1 cr200 series programming 'cr200 series 'example program showing measurement of a 380/385 sensor every 10 seconds. 'declare public variables and units public rain_in units rain_in=inch 'define data tables datatable(table1,true,-1) 'as an example store the da...

  • Page 16

    Met one rain gage models 380 and 385 ‘main program beginprog scan(10,sec,1,0) ‘default datalogger battery voltage measurement batt_volt: battery(batt_volt) ‘metone 380/385 rain gauge measurement rain_in: pulsecount(rain_in,1,1,2,0,0.01,0) ‘call data tables and store data calltable(table1) calltable(...

  • Page 17

    Met one rain gage models 380 and 385 'define data tables datatable(table1,true,-1) 'as an example store the data every 60 minutes. Datainterval(0,60,min) totalize(1,rain_in,false) endtable 'main program beginprog scan(10,sec) 'metone 380/385 rain gauge measurement rain_in: pulsecount(rain_in,c2,2,0,...

  • Page 18: 6.  Troubleshooting

    Met one rain gage models 380 and 385 6. Troubleshooting 6.1 precipitation symptom: no precipitation 1. Check that the sensor is wired to the pulse channel specified by the pulse count instruction. 2. Verify that the configuration code (switch closure), and multiplier and offset parameters for the pu...

  • Page 19

    Met one rain gage models 380 and 385 3. Pour the appropriate amount of water (see table 7-1) into the inner funnel (i.E. 18.52 ml for 0.01 inches of rain / tip): conversion factors: tip to in 3 : 113.04 in 2 (catch orifice area) x increment in inches. In 3 to ml: multiply by 16.3881. Ml to ounces: m...

  • Page 20

    Met one rain gage models 380 and 385 16.

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  • Page 22

    Campbell scientific companies campbell scientific, inc. (csi) 815 west 1800 north logan, utah 84321 united states www.Campbellsci.Com info@campbellsci.Com campbell scientific africa pty. Ltd. (csaf) po box 2450 somerset west 7129 south africa www.Csafrica.Co.Za cleroux@csafrica.Co.Za campbell scient...