2-Wire Explosion Proof Transmitter
The 2-Wire Explosion Proof Transmitter is equipped with a range of robust features designed for reliability and ease of use in hazardous environments. It utilizes an electrochemical sensor and operates on a loop-powered 2-wire system with a 4-20 mA output. The device includes a 3-character, 7-segment display screen with a backlight, enhancing visibility in various lighting conditions. User interaction is facilitated through a 3 push-button interface (ADD, MENU, SUB) complemented by magnetic, non-intrusive switches for seamless operation. It can function effectively within an operating temperature range of -40°C to +60°C. The transmitter is built with a durable aluminum enclosure and a 303 stainless-steel sensor housing, ensuring robustness and longevity in demanding industrial settings.
- SKU
- 2-wire
Description / 2-Wire Explosion Proof Transmitter
The T2A Series Toxic Gas Detector is a versatile assembly that uses an electrochemical sensor to detect a variety of gases. 2-Wire Loop-Powered to withstand extreme climatic conditions and harsh environments. Magnetic switches allow for non-intrusive calibration while in the field.
The T2A represents the latest leading edge technology in fixed gas detection today.
Applications:
- Petrochemical plants
- Refineries
- Water & wastewater treatment plants
- Pulp & paper mills
- Manufacturing facilities
- Automotive
- Semiconductor plants
- Chemical plants
Sensor Options:
| Gas Type | Range | T90 | Hazard Classification |
| LEL Catalytic | 0-100% (0-5% Vol) | < 90 sec. | Class 1, Div 1 |
| CL2 | 0-10 ppm | < 60 sec. | Class 1, Div 2 |
| CLO2 | 0-1 ppm | < 120 sec. | Class 1, Div 2 |
| CO | 0-300 ppm | < 30 sec. | Class 1, Div 1 |
| CO2 | 0-5% vol | < 30 sec. | Class 1, Div 1 |
| H2S | 0-100 ppm | < 30 sec. | Class 1, Div 1 |
| H2S 2K | 0-2000 ppm | < 25 sec. | Class 1, Div 1 |
| HCL | 0-30 ppm | < 300 sec. | Class 1, Div 2 |
| HCN | 0-30 ppm | < 70 sec. | Class 1, Div 2 |
| HF | 0-10 ppm | < 90 sec. | Class 1, Div 2 |
| LEL-IR | 0-100% (0-5% Vol) | < 30 sec. | Class 1, Div 1 |
| LEL-IR-HC | 0-100% LEL | < 30 sec. | Class 1, Div 1 |
| NH3 | 0-100 ppm | < 90 sec. | Class 1, Div 2 |
| NH3 300 | 0-300 ppm | < 120 sec. | Class 1, Div 2 |
| NH3 A | 0-1000 ppm | < 120 sec. | Class 1, Div 2 |
| NO2 | 0-20 ppm | < 25 sec. | Class 1, Div 2 |
| O2 | 0-25 Vol | < 15 sec. | Class 1, Div 1 |
| PH3 | 0-5 ppm | < 30 sec. | Class 1, Div 2 |
| SO2 | 0-20 ppm | < 35 sec. | Class 1, Div 1 |
Specifications:
- 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-point
- Temperature Range: -40°C to +54°C (-40°F to +129°F)
- Output: RS-485 modbus
- Wire (analog) Output: 4-20 mA (3-Wire)
- Product Dimensions: 5.5 in, L x 6 in. W x 7 in. H
- Weight: 6 lbs
Replacement Sensors:
Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range Range
Ammonia (NH3) for up to 100 ppm, EC type Replacement Sensor
Ammonia (NH3) High Range, 200 to 1000 ppm Replacement Sensor
Arsine (AsH3) 0-1 ppm, EC Type Replacement Sensor
Carbon Dioxide (CO2) 0-5% Vol Replacement Sensor
Carbon Dioxide (CO2) 0-5000 ppm Replacement Sensor
Carbon Monoxide (CO) 0-1000 ppm, EC Type Replacement Sensor
Chlorine (Cl2) 0-20 ppm, EC Type Replacement Sensor
Chlorine Dioxide (Cl2) 0-5 ppm Replacement Sensor
Ethylene Oxide (ETO) 0-100 ppm, EC type Replacement Sensor
Formaldehyde (HCHO) 0-10 ppm, EC type Replacement Sensor
Hydrocarbons (CH4) 0-100% LEL, catalytic Replacement Sensor
Hydrocarbons (CH4) 0-100% LEL, IR Replacement Sensor
Hydrocarbons (CH4) 0-100% vol, IR Replacement Sensor
Hydrogen (H2) 0-100% LEL, EC type Replacement Sensor
Hydrogen Chloride (HCI) 0-20 ppm, EC type Replacement Sensor
Hydrogen Chloride (HCI) 0-200 ppm, EC type Replacement Sensor
Hydrogen Cyanide (HCN) 0-50 ppm, EC type Replacement Sensor
Hydrogen Fluoride (HF) 0-10 ppm, EC type Replacement Sensor
Hydrogen Sulfide (H2S) 0-100 ppm Replacement Sensor
Hydrogen Sulfide (H2S) 200-2000 ppm Replacement Sensor
Nitric Oxide (NO2) 0-20 pm, EC type Replacement Sensor
Nitric Oxide (NO2) 0-250 ppm, EC type Replacement Sensor
Oxygen (O2) 0-25% vol Replacement Sensor
Ozone (O3) 0-5 ppm, EC type Replacement Sensor
Ozone (O3) 10-100 ppm, EC type Replacement Sensor
Phosphine (PH3) 0-5 ppm Replacement Sensor
Sulfur Dioxide (SO2) 0-20 ppm Replacement Sensor
Downloads:
More Information
| Manufacturer | RKI Intruments |
|---|---|
| Gas | Ammonia (NH3), Arsine (AsH3), Carbon Monoxide (CO), Chlorine (Cl2), Chlorine Dioxide (ClO2), Ethylene Oxide (ETO), Formaldehyde (CH2O), Hydrocarbon (HC), Hydrogen Cyanide (HCN), Hydrogen Fluoride (HF), Hydrogen Sulfide (H2S), Nitric Oxide (NO), Nitrogen Dioxide (NO2), Oxygen (O2), Ozone (O3), Phosphine (PH3), Sulfur Dioxide (SO2) |
| 4-20 mA Output | No |
| Field Replaceable Sensor | No |
| Auto Test Generator | None |
| Min, Max, Avg | No |
| Voltage Output | None |
| Datalogging | No |
| Rechargeable | Yes |
| Field Replaceable Battery | Yes |
| Warranty | 1 Year |
| Audible Alarm | Yes |
| Calibration | Annually |
| Sensor Life | 2 years |
| Range | Gas Dependent |
| Unit Features | - Electrochemical, Infrared or Catalytic bead sensors - Wire powered (2-Wire) 12 to 35 VDC - Ideal for Refineries, water treatment plants, mills and more |
| Sensor Range | Gas Dependent |
| Resolution | Gas Dependent |
| Integrated Relays | Yes |
| Sensor Range | Gas Dependent |