Westire Zhaga photocell
DALI D4i dimming & part-night photocell
Advanced dimming and part-night function for cost and energy savings
Accuracy
Westires Zhaga DALI D4i dimming and part-night photocell utilises Westire Eye Response filtered silicon based ambient light sensor and microprocessor control running advanced algorithms. This combination provides the best energy savings and reliable operation.
Quality
Engineered and assembled in the EU, with a 20 year design life using only name brand components and high quality materials. The Zhaga 9000 series photocells are of renowned quality all while maintaining value and reliability. Each unit has a full electrical and 48 hour operational burn-in test before leaving the factory.
Designed to meet the needs of DALI enabled LED smart street light luminaries.
Features & Benefits
- Cost savings through reduced power consumption
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Same accurate ambient light sensing as all Westire photocells
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Part-night, On/Off & dimming schedules programmed to your specification
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World’s most advanced A.I. solar time clock algorithms
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DALI D4i communications to the LED driver
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Low voltage 24Volts DC
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No photocell switching circuitry.
- Complies with the Zhaga Book 18 Interface.
- DALI2 – D4i compliant
- Fits into the Zhaga socket without the need to disconnect the mains supply
- Self-correcting dimming and part-night function
- Engineered, assembled & tested in our Irish manufacturing facility
- World’s top brand electronic components and materials used
Applications
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Automatically switches street lights off/on at dawn/dusk.
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Road, street lighting and area lighting controls.
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Custom calculated midnight dimming.
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Interfaces with DALI-2 enabled LED luminaire drivers.
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Ideal for all types of DALI enabled outdoor lighting controls.
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Wall mounting bracket available.
Technical Specifications
| Dimensions | 40mm D x 30mm H 1.5" x 1.8" |
| Photocell Type | Zhaga Book 18 D2 & D4i |
| Receptacle Compatibility | Zhaga Book 18 |
| Luminaire Fixing | Zhaga Book 18 Standard Socket |
| Warranty | 8 years standard |
| Driver Supply voltage | 24 Volts DC |
| Average Power Consumption | <0.01 Watts |
| Operating Temperature | -30⁰C to +70⁰C -22⁰F to +158⁰F |
| Enclosure Protection Rating | High impact IK09 impact rated protection. IP66. |
| Standards Compliance | DALI-2, D4I, IS EN ISO 9001: 2015, Environmental RoHS. |
| Switch “On” Light Level | 20:20 Lux Other switching available on request. |
| Switching Ratio | 1:1 Standard. Other settings available on request. |
| Ambient Light Sensor | Colour corrected silicon sensor |
| Switching Time Delay | Instant “On” :25 Seconds Delay Off or as specified. |
| Switching/Dimming Options | DALI dusk to dawn. Multiple dimming options available. |