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6.3
RELAY OUTPUTS (Optional)—
Available on Ex d approved models only.
ALARM RELAYS—
Low and High
Form C Type (NO/NC). De-Energized during
Normal mode, Energized on Alarm.
Contact Rating: 3 amperes at 30 Vdc.
Programmable for Latching or Non-Latching
Operation.
Low Alarm: 0.5 to 4.5 LFL-meters
(default = 1 LFL-meters, Non-latching).
High Alarm: 0.5 to 4.5 LFL-meters
(default = 3 LFL-meters, Non-latching).
Alarm relays are programmable using HART or
Modbus communication.
CAUTION
When the LS2000 Gas Detector is used in
conjunction with an appropriate certified
Control Unit and configured for a non-
latching high alarm, the control unit must
always
latch and require a deliberate
manual action to clear a high gas alarm.
When used as a stand alone device, the
high alarm must always be programmed
for latching operation.
FAULT RELAY—
Form C Type (NO/NC).
Energized during Normal mode, De-Energized
on Fault or loss of power.
Contact Rating: 3 amperes at 30 Vdc.
Non-Latching Operation only — not
programmable.
VISUAL STATUS INDICATOR—
LEDs – Transmitter:
Red =
Low alarm, high alarm*
Green = Power on / OK
Yellow = Fault / warmup / calibration*
*Communication link required for low / high
alarm and calibration indication.
LEDs – Receiver:
Red =
Low alarm, high alarm
Green = Power on / OK
Yellow = Fault / warmup / calibration
See Tables 4 and 5 for details.
AVAILABLE GAS SETTINGS—
Third party performance approved to methane,
butane, and propane.
DETECTION RANGE—
Short Range
5-60 meters
Long Range
30-120 meters.
Note: It may be necessary to add the aperture
(supplied) to the transmitter when operating at
the lower 10–15 meters of each range.
MISALIGNMENT TOLERANCE—
±0.8 degree minimum (~±56cm @ 40m;
~±168cm @ 120m). The LS2000 is third party
verified to maintain specified accuracy within the
entire 0.8 degree field of view for both Receiver
and Transmitter.
Note: The receiver has a circular field of view.
The transmitter has an oval shaped field of view
with a minimum 0.8 degree tolerance along
the horizontal axis and a minimum 1.5 degree
tolerance along the vertical axis (Det-Tronics
verified).
CALIBRATION—
LS2000 systems are span calibrated for
methane, propane, and butane at the factory.
Span calibration in the field is not required (see
Table 1 for factory span calibration concentration
by variant).
Zero calibration is accomplished in the field by
one of the following methods:
– On-board magnetic reed switch
– Modbus communication
– HART communication
– External calibration switch
– LON communication
RESPONSE TIME—
Refer to the appropriate Approval/Certification
Appendix for details.
ACCURACY—
Refer to the appropriate Approval/Certification
appendix for details. Accuracy specification
applies to full operating temperature, humidity,
and pressure ranges listed, unless noted
otherwise.
NOTE
Misalignment will cause the manufacturer
stated Accuracy limits to increase, but
remain within the limits of EN 60079-29-4
and IEC 60079-29-4.