At 3M Gas & Flame Detection, we understand the cost of equipment downtime and false alarms, so we ensure all of our products are designed with maximum reliability in mind.
The OLCT 200 can be configured to meet nearly any application through its state-of-the art features and options.
The OLCT 200 is designed to offer the user convenient features and ease of use.
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.
3M Gas & Flame Detection 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.
Combustible Gases: Catalytic, Infrared
Toxic / Oxygen: Electrochemical, PID
Enclosure: Epoxy Coated Aluminum or 316 Stainless Steel
Sensor: 316 Stainless Steel
Backlit LCD (2-Wire models do not have backlight
10 - 30 VDC
Lithium-Ion Battery (select wireless models)
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)
NEMA 7X, IP66
2-wire, 3-wire, or 4-wire, shielded
Max. cable loop resistance:
500Ω @ 24VDC (2-wire configs)
750Ω @ 24VDC (3-wire configs)
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-energized, and latching or non-latching
Fault Relay is always normally energized
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
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)
5.0" (127mm) W x 7.8" (197mm) H x 5.1" (130mm) D Shipping Weight Appox. 7 Lb (3.2 kg)
-40°C to 60°C - (sensor specific)
Technical Specifications for the OLCT 200 Gas Detection Transmitter