HY LXP21E CIE complied tunnel photometer for lighting control system

Overview

The HY-LXP21E measures the level of illuminance within the tunnel bore to ensure interior illumination levels are being continuously maintained in order to affect safe lighting conditions for drivers. Illuminance, or incident lighting, determines the amount of light that covers a specific surface or area within the tunnel.

Designed specifically for the tunnel environment, the HY-LXP21Econtinuously measures cosine corrected planar illuminance within the tunnel thus allowing elimination of directional error. The HY-LXP21E measures the illuminance over a standard range of 0 - 20,000 lux.

Like the HY-CDP22E, the HY-LXP21E uses a specially designed, highly light-sensitive photocell, filtered to provide a spectral response close to that of the average human eye, to react to changes in light levels within the tunnel environment.

The HY-LXP21E is a self contained intelligent analyser and the measurements are converted into an output signal of 4-20 mA (directly proportional to the illuminance measurement) for hard wire connection and signal transmission to a host controller. The HY-LXP21E also comes with alarm relay contacts and ModBus serial communications protocol.

Having been designed for tunnel environments, the HY-LXP21E is of rugged construction using powder coated stainless steel and flame retardant polycarbonate to achieve an IP67 / NEMA 4X protection rating. The HY-LXP21E is able it to withstand the corrosive atmosphere and regular tunnel washing that the tunnel environment endures. The HY-LXP21E has an operating temperature range from -30℃ - +70℃ which ensures stable readings across all prevailing ambient temperature conditions.

Key features

• CIE Approved measurement technology


• Accurate measurement of illuminance within tunnel


• Designed specifically for tunnels


• Rugged construction


• Simple installation/operation


• Isolated 4-20mA analogue outputs


• Alarm relay contacts


• ModBus serial comms

Specification

Price, Package, Service

1, Price : EXW, FOB, CIF
2, Payment: 100% T/T in advance, west union or paypal .
3, Packing : standard export packing , including instructions
4, Leading time :  5-8 working days after payment.
5, OEM avaliable
6, Shipment: Express (FedEx, DHL, UPS & TNT) or forwarder (by sea, air)
7. One year free repair for quality warranty