RKI T3A Gas Detector
002758-HW-RKI-058
Overview
The T3A Series Gas Detector ambient air hazardous gas detector is a versatile assembly that uses an electrochemical, infrared, catalytic bead sensor element to detect a variety of gases. Wired power (12 to 35 VDC) with 4-20 mA analog and RS-485 Modbus outputs standard. Magnetic switches allow for non-intrusive calibration while in the field as well as full system settings and diagnostics.
| Sensor Type | Electrochemical, infrared, catalytic bead | |
| Operating Voltage | Wired power (3-Wire) 12 to 35 VDC | |
| Power Draw | 2 Watts maximum | |
| Protection | Power electromagnetic interference (EMI) filter 4-20 mA surge suppression RS-485 surge suppression | |
| Display Screen | 102×64 Resolution graphical LCD screen transflective (sunlight readable) with white LED backlight | |
| Interface | 3 Push-buttons (MENU, ADD and SUB) 3 Magnetic non-intrusive switches for calibration | |
| Customizable Settings | 2 Individual-configurable alarm LED/relay set-points | |
| Temperature Range | -40°C to +54°C (-40°F to +129°F) | |
| Output (digital) | RS-485 modbus | |
| Wired (Analog) Output | 4-20 mA (3-Wire) Fault terminal, wet relay contact. Has it’s own power. Optional 2 dry-contact relays with replaceable 4 amp fuses. | |
| Product Dimensions | 5.5 in, L x 6 in. W x 7 in. H (8 in. W x 17 in. H Max. dimensions with attachments) | |
| Total Weight | 6 lbs. | |
Remote Sensor Kit
(Optional Additional Feature) | Remote sensor kit with enclosure (5 pin) • Electrochemical sensor max. length: 250 feet • Infrared sensor max. length: 40 feet • Catalytic bead sensor max. length: 15 feet | |
Hazardous Location
Approvals | Main Enclosure | Certified explosion / flame proof CQPSUS Class I, Division 1 & 2, Groups B, C & D Nema 3, 4, 4X, 7 (B, C, D) 9 (E, F, G) Temp.= -20°C to +60°C |
| Sensor Housing | Certified explosion / flame proof CQPSUS Class I, Division 1 & 2, Groups B, C & D Temp.= -40°C to +60°C Note: Certification only applies to some gases. Toxic gases not certified for Div. 1 locations are suitable for Div. 2 applications but have no third party approval. | |
| Controllers | Controllers compatible with all RKI Beacon controllers, as well as most DCS / PLC systems: Beacon 110, Beacon 200, Beacon 410A, Beacon 800, and MC-6400 | |
| Warranty | 1-Year warranty for electronics and sensor | |
- Electrochemical, Infrared or catalytic bead sensors
- Wire powered (3-Wire), 12 to 35 VDC operating voltage
- Operating temperature range -40°C to +60°C
- LCD display with LED back-light
- 3 Push-button interface (ADD, MENU, SUB)
- Non-intrusive buttons using magnetic wand