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SEC 2000 Gas Detector
The SEC 2000 is a digital gas detector,
that is designed to detect one of a number
of gases, display the concentration of
that particular gas, and provide an alarm
when gas concentrations reach preset levels.
The SEC 2000 will operate as a stand-alone
gas detector with its own relay outputs
and LED display. An industry standard
4-20 mA output enables the SEC 2000
to be connected to analog systems, such
as PLC, DCS and TMR systems.
The SEC 2000 operating parameters (relay
action, alarm set values, sensor configuration,
etc.) can be viewed or changed using the
SEC 2500 Hand Held
Programmer or
SEC Supervision Plus software. The
2500 can communicate anywhere on the network
with any SEC 2000 using either an infrared
link, an RS-485 data highway, or by plugging
directly into any SEC 2000.
An RS-485 digital output enables the SEC
2000 to communicate to a personal computer
running Supervision
Plus software or SEC
4100 System Monitor. The SEC 2000
network is formed by connecting a single
twisted shielded pair of cable wires,
reducing cabling and installation costs.
A push-button magnetic switch is used
to perform a non-intrusive calibration.
The calibration sequence is user-friendly
and requires only one person.
The SEC 2000 retains operating parameters
and calibration settings when powered
down. An on-board microprocessor provides
continuous self-diagnostics and identifies
problems using fault codes. Four 8 amp
SPDT relays respond to low, mid and high
gas alarms as well as any fault conditions.
Calibration gas values can be changed
without opening the SEC 2000 housing,
using the magnetic push-button switch
for calibration.
SEC 2000 Gas Detector Features
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Designed
for hazardous environments |
| • |
Low-cost
installation |
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Over
20 different gases detected |
| • |
CSA/NRTL
approved |
| • |
Combustible
detector UL approved |
| • |
Industry
standard 4-20 mA output |
| • |
RS-485
digital output |
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User
friendly, one person calibration |
| • |
Provides
continuous self-diagnostics |
| • |
Combustible,
toxic and oxygen deficiency
detectors |
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Retains
operating parameters and calibration
settings when powered down |
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Operates
with SEC
Supervision Plus hazard
event monitoring software |
| • |
Inexpensive
non-display units available |
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Relays
can be set to turn on alarms,
shut doors and turn on fans |
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SEC 2000 Gas Detector Applications
| • |
Petrochemical
Refineries |
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Buildings |
• |
Parking
Garages |
| • |
Compost
Facilities |
• |
Automotive
Industry |
• |
Chemical
Industry |
| • |
Semi-Conductor
Industry |
• |
Engine
Test Rooms |
• |
Nuclear
Industry |
| • |
Mining |
• |
LNG
and LPG Facilities |
• |
Fertilizer
Industry |
| • |
Pulp
and Paper Mills |
• |
Sewage
Industry |
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Tunnels |
| • |
Oil
Rig Platforms |
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Water
Treatment Plants |
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Medical
Facilities |
SEC 2000 Gas Detector Specifications
| ALARMS |
|
Visual
indication and relay contacts for
low, mid, high and fault |
 |
| APPROVAL |
|
CSA
file # LR 95495
UL file # E 187700 |
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| CLASSIFICATION |
|
Toxic
and Oxygen
Class 1, Division 1, Groups B, C and
D
Combustible — Catalytic
Class 1, Zone 0, 1 and 2 Hazardous
Locations |
|
| DETECTION
METHOD |
|
Combustible
Gas — Infrared & Catalytic
— LEL
Toxic Gases — Electrochemical
Oxygen — Galvanic |
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| ENCLOSURE
CONSTRUCTION |
|
Electronics
— epoxy coated explosion-proof
aluminum housing
Sensor — anodized explosion-proof
aluminum housing, optional stainless
steel |
|
| RELAY
OPERATION |
|
Selectable
latching or non-latching
Selectable normally energized or normally
de-energized (except fault)
Selectable alarm relay off delays
Manual relay control |
|
| ENCLOSURE
DIMENSIONS |
|
6.5"
(W) x 7" (L) x 6.5" (H)
inches
165 (W) x 178 (L) x 165 (H) mm |
|
| OPERATING
VOLTAGE |
|
24
VDC operating 18-32 VDC (measured
at detector head) |
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| ANALOG
OUTPUT |
|
4-20
mA (source type), max. 1,000 ohm load
at 24 VDC supply voltage |
|
| DIGITAL
OUTPUT |
|
RS-485
LAN |
|
| POWER
CONSUMPTION |
|
Combustible
— 2.5 watts nominal; 3.6 watts
maximum
Toxic gases and oxygen — 2.5
watts nominal; 3.6 watts maximum |
|
| RELAY,
TYPE AND RATING |
|
SPDT:
8 Amps @ 250 VAC, 8 Amps @ 30
VDC |
|
| RFI |
|
Tested
to military standard 462C |
|
| SAMPLING
METHOD |
|
Diffusion,
optional sample-draw |
|
| TEMPERATURE
RANGE |
|
-40º
to +70º C Toxic gas sensors temperature
range may vary |
|
| WEIGHT |
|
Approximately
7 lbs. (3.2 Kg.) |
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