Rain Bird WS PRO LT Specifications download pdf (Page 25)

CONSTRUCTION DOCUMENTS SPECIFICATIONS

An RTF text file of these specifications can be found on the ET Manager Resource CD.

ET Manager

The ET Manager (ETMi) shall be a control device for a sprinkler controller, and shall be adaptable to most sprinkler control-

lers. It shall be programmable to site-specific conditions to manage landscape watering based on hourly weather conditions.

The ET Manager (ETMi) shall be programmable to the required Signal Provider Code in order to receive messages from the

Weather Reach™ Signal Provider (WRSP). The user shall be able to enter a weather region code number that corresponds to

the desired weather station data source operated by the WRSP.

The ET Manager (ETMi) shall calculate ET values using the ASCE Standardized equation based on weather station input

including wind speed, temperature, relative humidity, and solar energy. Effective rainfall shall be subtracted from ET to cal-

culate a soil moisture balance.

The ET Manager (ETMi) shall interrupt the 24 VAC common wire suspending irrigation frequency based on user-selectable

irrigation amounts.

The ET Manager (ETMi) shall be mounted in close proximity to the irrigation controller; in applications requiring outdoor

mounting, the ET Manager shall be mounted in a weatherproof enclosure.

The ET Manager (ETMi) shall operate at 12 to 30 Volts AC or 12 to 35 Volts DC @ 0.22 Amp max and be capable of withstand-

ing a maximum contact load of 4 Amp @ 30 Volts AC maximum.

The ET Manager (ETMi) shall have an integrated override button to permit maintenance and manual watering to occur.

The ET Manager (ETMi) shall have a factory supplied 9-volt alkaline battery to maintain clock time and program memory dur-

ing a power outage.

The ET Manager (ETMi) shall have programmable settings and records shall be stored in non-volatile memory and be able to

be recalled.

The Rain Bird ET Manager Series shall be sold by Rain Bird Corporation.

ET Manager Tipping Rain Gauge

The Tipping Rain Gauge shall provide a measurement of local rain fall to the Rain Bird ET Manager. It shall provide rain infor-

mation via a dry contact pulse measuring 1mm of rain per pulse or tip with a maximum +/- 2 percent deviation. It shall be

made of durable, weatherproof material resisting UV radiation, frost and extreme temperatures. It shall include a 30-foot

cable.

The Tipping Rain Gauge must be mounted on a level surface in a location where natural rainfall may be caught, not blocked

by obstructions, nor in a location where sprinkler water might be collected in addition to rain.

The Tipping Rain Gauge shall be sold by Rain Bird Corporation

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Rain Bird WS PRO LT Specifications Page 25