LaserFOCUS 250 Specifications

Input Power Voltage: 24V DC Nominal (18-30 V DC)

Current @ 24 VDC: 220 mA nominal, 295 mA in alarm

Dimensions (W x H x D):
255 mm x 185 mm x 90 mm (97/8 in x 71/8 in x 31/2 in)

Weight: Approx. 2 kg (4.4 lbs)

IP Rating: IP30

Mounting: Upright, inverted or horizontal

Operating Conditions
Detector Ambient: 0 °C to 40 °C (32 °F to 104 °F)
Sampled Air: 0 °C to 40 °C (32 °F to 104 °F)
Humidity: 5% to 95% (non-condensing)

Sampling Network
Maximum pipe lengths: 1 x 25 m (80 ft) (Max. 12 holes) 2 x 15 m (50 ft) per branch (Max. 6 holes per branch)
Sampling Hole Options: Pre-Engineered Option or Maximum Pipe length in accordance with Pipe Modelling Design Tool (ASPIRE2™)

Air Inlet Pipe
Accepts both metric and American standard pipe sizes.
Metric: 25 mm (1.05 in.) American Pipe: IPS 21 mm (¾ in.)

Area Coverage:
Up to 250 sq.m. (2500 sq. ft.) depending on local codes and standards

Relay Outputs:
3 changeover relays (Fire 1, Action, Fault), Contacts rated 2A @ 30 VDC (max). NO/NC Contacts

Cable Access:
3 x 25 mm (1.05 in.) cable entries (1 rear entry, 2 top entry)

Cable Termination:
Screw Terminals 0.2-2.5 mm2 (30-12 AWG)

Interfaces:
RS232 Programming Port. General Purpose Input (GPI) interface offers: Reset, Disable, Standby, Alarm set 1, Alarm set 2 and External Input functions.

Alarm Threshold Setting Range:
Alert, Action, 0.025 - 2.00% obs/m (0.008 - 0.625% obs/ft)
Fire 1, Fire 2 0.025 - 20.00% obs/m (0.008 - 6.25% obs/ft)
Individual Alarm Delays 0 – 60 seconds
Two Alarm Threshold Settings Either time or GPI based

Display:
4 Alarm State Indicators, Fault and Disabled Indicators, Smoke Level Indicator, Instant Fault Finder, Reset, Disable and Test Controls, Smoke and Flow AutoLearn Controls

Event Log:
Up to 18000 events, time and date stamped in separate, non-volatile, logs for: Smoke Level, Flow Level, Detector Status and Faults

AutoLearn Smoke & Flow:
Automatically set acceptable alarm thresholds for both smoke and flow levels.

Minimum 15 minutes, maximum 15 days (default 14 days)

During AutoLearn thresholds are NOT changed from pre-set values