SharpEye 20/20MPI, Руководство пользователя и по обслуживанию

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SharpEye
TM
IR3 Flame Detector User Guide
28 Detector Mode Setup
4.3 Detector Mode Setup
4.3.1 Detector Setting
Refer to Detector Default Setup on page 30 for default factory settings.
The detector incorporates several functions that can be set by the customer
using SPECTREX host software, which is supplied with each detector
shipment. Please refer to
Manual TM768050 for programming instructions.
The host software enables you to change functions as described in Detector
Functions on page 28.
4.3.2 Detector Functions
4.3.2.1 Sensitivity Ranges
The detector offers 4 sensitivity settings. The settings refer to the gasoline
fire of 1ft
2
from 33ft/10m – 140ft/43m. Detection distances for other fuels
vary.
4.3.2.2 Alarm Delay
The detector is equipped with an alarm delay option, which provides
programmable time delays of 0–30 seconds with 8 fixed settings:
 0 seconds
 Anti-flare
 3 seconds
 5 seconds
 10 seconds
 15 seconds
 20 seconds
 30 seconds
When an alarm (detection) level condition is encountered, the detector
delays the execution of the alarm output’s relay by the specified period of
time. The detector then evaluates the condition for 3 seconds. If the alarm
level is still present, the alarm outputs are activated. If this condition no
longer exists, the detector returns to its standby state. The alarm delay
option affects the alarm relay and the 0–20mA output. The LED indicates
warning level during the delay time only if the fire conditions exist.
Anti-Flare
Anti-flare mode is selected to prevent false alarms in locations where fast
flares may be present. The time delay for a fire alarm in this mode is from
2.5–15 seconds, and is usually less than 10 seconds.
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