OLCT 200 Fixed Gas Detector

Overview

The OLCT-200 covers basically all common gases plus VOCs. In addition, it supports ModBus as well as HART Communication protocols. It also can be installed as a wireless (battery powered) gas detector.

Wireless communication is becoming increasingly popular in gas detection, and it is sometimes the only way to ensure safety in existing infrastructure or remote locations.

The infrared sensor provides detection of explosive gases in more severe environmental conditions, where the presence of poisons could harm the use of a catalytic cell.

OLDHAM also offers a variety of wireless solutions compatible with the OLCT 200, including wireless controllers and solar-powered field monitors as well as wireless repeaters and accessories.

For more information on the OLCT 200, contact your local Air-Met office.

Features

Reliable

SIL-2 – Hardware assessed to be SIL-2 capable
Security mode allows for lockout of critical parameters
"Fault Supervision" circuitry
Programmable warm-up and cal delays to avoid false alarms

Versatile

Explosion-proof
Intrinsically Safe
HART® (opt)
RS-485 ModBus (opt)
Stainless Steel Enclosure (opt)
Programmable Relays (opt)
2-wire, 3-wire Installations
Wireless Communication (opt)
Cold Climate Heater (opt)
Dual Gas Sensing (opt)
Remote Sensing (opt)
Large Sensor Offering—Electrochemical, Catalytic, Infrared, and Photo Ionisation Detection Sensors

Easy to Use

Smart Sensors
Large Graphical Display
30min Trending
Backlit LCD (excluding 2-wire)
Non-Intrusive Calibration
Split Screen Display (dual sensor option)
Visual Alarm LEDs

Wireless

Wireless communication is becoming increasingly popular in gas detection, and it is sometimes the only way to ensure safety in existing infrastructure or remote locations. The OLCT 200 wireless option offers many benefits to meet your application needs.
900MHz or 2.4GHz FHSS
10mW – 1W Adjustable Tx Power
CSA Div 1 and Div 2 Antennas
256-bit Encryption
Indoor Range up to 3000' (900 meters)
Outdoor Range up to 10 miles (16 km)
High Receiver Sensitivity
Battery & Solar Powered Options

Specifications

Sensors	Combustible Gases: Catalytic, Infrared Toxic / Oxygen: Electrochemical, PID
Material	Enclosure: Epoxy Coated Aluminum or 316 Stainless Steel Sensor: 316 Stainless Steel
Display	Backlit LCD (2-Wire models do not have backlight)
Input Voltage	10 - 30 VDC Lithium-Ion Battery (select wireless models)
Power Consumption	25mA @ 24VDC (EC Sensor) 100mA @ 24VDC (Cat, IR, PID Sensors) +120mA @ 24VDC (for added energized relays) +20mA @ 24VDC (for added RS-485 ModBus) +210mA @ 24VDC (for added Arctic Heaters)
Ingress Protection	NEMA 7X, IP66
Cable	2-wire, 3-wire, or 4-wire, shielded
Max. Cable Loop Resistance	500Ω @ 24VDC (2-wire configs) 750Ω @ 24VDC (3-wire configs)
Output Signal	Standard: 4-20mA (analog), 2-wire (sink), 3-wire (source) Optional 1: Dual Isolated 4-20mA (source) Optional 2: RS-485 ModBus (9600 Baud) Optional 3: Wireless (900MHz or 2.4 GHz) Optional 4: HART® Protocol
Alarm Relays (opt)	3 Relays (2 User Programmable, 1 Fault) Form C (SPDT) 5 AMP @ 30VDC or 240 VAC "RESISTIVE" Relays 1&2 are configurable for low and high alarms, normally energized or normally de-energised, and latching or non-latching Fault Relay is always normally energised
Wireless (opt)	900MHz or 2.4GHz FHSS(Frequency Hopping Spread Spectrum) 256-bit AES Encryption (meets FIPS-197) 10mW - 1W Adjustable Transit Power (900Mhz only) Div 1 XP and Div 2 Configurable
Approvals	Consult factory for current approval status CSA - Class 1, Div. 1, 2 - Groups A, B, C, D (2-wire config.) - Groups B, C, D (3-wire config.) IS barrier required for intrinsically safe installations! SIL-2 - hardware SIL-2 capable per EN 61508 (exida)
Dimensions	5.0" (127mm) W x 7.8" (197mm) H x 5.1" (130mm) D Shipping Weight Appox. 7 Lb (3.2 kg)
Operating Temperature	-40°C to 60°C - (sensor specific)