The Ultrasafe ® system from FSL provides cordless remote control of plant and machinery from within hazardous area zones 1 and 2. Simply pressing a button on the transmitter generates a pulsed infra-red beam, which is picked up by the receiver, activating the particular channel relay.
Using a combination of explosion protection concepts such as EExi, EExd and EExe, with extremely rugged design and build methods, the system is ideal for the most hostile of environments.

The system is available with two different hand sets providing up to 11 independent controlling operations. The rugged cordless handsets are certified intrinsically safe to EX ia IIB T4, and employ proven infra-red control technology to give the operator reliable control up to a distance of 25 metres.

The receiver is a certified EEx de IIC T6 and has a range of options to cater for fail safe requirements as well as high RFI environments.

Operation
Access Control Lighting Control
Motion Control Alarm control

System Hardware Summary

Receiver Transmitter
Epoxy Coated Aluminium Enclosure Cordless Operation
High Electro-magnetic compatability Long Distance Transmission
Fail Safe Options Rugged Construction
Explosion Protection EEx de IIC T6 Explosion Protection EEx ia IIB T4
Flexible Control Option Choice of two Versions
Wide Angle Signal Reception Key-Switch Disable option

The Transmitter
Certified intrinsically safe by SIRA .
Certified code : EEx ia IIB T4 Range Typical 25m
Number of Controls
1 to 11 channel options (depending on model) Transmission Type
PPM Infra-red output with high radiation intensity (720 MW/SR typ) and peak wavelength 950nm
Battery Type
9 Volt alkaline; GP alkaline (1604A) or Duracell MN1604A Operating Temperature
-20 C to 60 C

Power Consumption
Powered : max 45mA. Deactivated : max 10 uA Housing Custom
designed ABS enclosure. Compact model : IP20 Enhanced Model : IP55

The Receiver
Certified by PTB.
Certification Code : EEx de IIC T6 Switch Delays
100ms on operate. 100ms on release.

Supply Voltage
a.) 12-24 VDC
b.) 220/240 VAC
c.) 110 VAC Operating Temperature -20 C to 40 C
Outputs 6 volt free relays; 5 normal open contacts, 1 changeover contact. Up to 11 channels are available by using 2 receivers and one enhanced handset. Housing Epoxy coated marine grade aluminium EEx de IIC T6 control unit fitted to a glass filled re-inforced polyester EEx e enclosure with 15EEx e terminals meeting IP65

Current Ratings
5 amps per relay. Maximum 12 amps per receiver. Two User Selectable Codes

Approvals
Transmitter : SIRA No. Ex95C 2031
Receiver : PTB No. Ex 80 1091.
Electronic Components : U.L. Listed
Options

Other Information
Plug in latching card for latched relay switching
Noise suppresion card for increased performance and range in environments
with a particularly high level of electrical noise.
Keyswitch for disabling handset