VESDA VLF-500 Product Guide
VESDA by Xtralis
40
www.xtralis.com
8.5
Area Covered
VLF-500
500 m² (5380 sq. ft.)
8.6
Field Wiring
Access
3 x 25 mm (1 in.) Cable entries (1 rear
entry)
Terminals
0.2 mm² - 2.5 mm² (30 - 12 AWG)
8.7
Interfaces
l
Power In/Out.
l
Fire 1 Relay (changeover, 2A @ 30 VDC).
l
Action Relay (changeover, 2A @ 30 VDC).
l
Fault Relay (changeover, 2A @ 30 VDC).
l
General Purpose Input (clean contact).
l
External display port (with power limited output).
l
RS232 programming port.
8.8
Alarm Ranges
Alert, Action
0.025 – 2.0% obs/m
(0.008 – 0.625% obs/ft.)*
Fire 1, Fire 2
0.025 – 20% obs/m
(0.008 – 6.25% obs/ft.)*
Individual Delays
0 - 60 seconds
2 Threshold sets (1 & 2)
Day and night
*For code-specific information, refer to Codes and Standards Information for Air Sampling Smoke Detection on page iii.
8.9
Display
l
4 Alarm State Indicators (Alert, Action, Fire 1 and Fire 2).
l
Fault and Disabled Indicators.
l
10-sector Smoke Level Indicators.
l
10-sector Instant Fault Finder.
l
Reset, Disable and Test Controls.
l
Smoke and Flow AutoLearn Controls and Indicators.
8.10 Event Log
l
Up to 18 000 events stored.
l
Smoke trend, flow trend, faults events, configuration events and operational events.
l
Date and time stamp.
8.11 AutoLearn Smoke and Flow
l
Minimum 15 minutes, maximum 15 days (default 14 days).
l
During AutoLearn, thresholds are NOT changed from pre-set values.
8.12 Referencing
l
Reference smoke level source for networked detectors (requires a VESDAnet Interface card).
