Carbon dioxide gas transmitter 501 DT KwikSense Pro

carbon monoxidesulfur dioxideoxygen

Product Overview
The Uniphos 501 DT KwikSense Pro Smart Digital Gas Transmitter is a universal industrial transmitter designed for detection of toxic, oxygen and flammable gases. Compatible with KwikSense Smart Sensors, the 501 DT supports multiple sensor technologies and allows fast, tool-free sensor replacement. Transportable pre-calibrated sensors and non-intrusive calibration with a magnetic wand reduce downtime and enable safe operation in hazardous areas. The transmitter provides RS-485 MODBUS-RTU digital output, 4-20 mA analog output and optional HART protocol. Certified to ATEX, IECEx and SIL2 standards.

Applications

• Oil, gas and petroleum facilities
• Petrochemical and chemical plants
• Pharmaceutical production
• Marine and offshore installations
• Fertilizer manufacturing
• Nuclear facilities
• Iron and steel plants

Features

• Universal transmitter accepting multiple sensor technologies (EC, PELL, NDIR, PID, SS, MPS).
• Analog and digital outputs: 4-20 mA plus MODBUS over RS-485; HART optional.
• Pre-calibrated KwikSense Smart Sensors for rapid swap-out.
• Non-intrusive calibration using a magnetic wand — no enclosure opening required.
• Safety certifications: ATEX, IECEx, SIL2 (plus CE where applicable).
• Three configurable potential-free relay contacts for local control/alarms.
• Wide operating temperature range (sensor dependent): -40 to +65 °C.
• Bright 8 x 2 OLED display for clear readings and status.

Gas List (table)
Acetylene | 099C | SSA0099C | 0 – 100% LEL | 1% LEL | Pellister
Ammonia | 082A | SSA0082A | 0 – 100 ppm | 1 ppm | EC
Ammonia | 082B | SSA0082B | 0 – 1000 ppm | 1 ppm | EC
Bromine* | 061A | SS00061A | 0 – 20 ppm | 0.1 ppm | EC
Butanol | 099D | SSA0099D | 0 – 100% LEL | 1% LEL | Pellister
Carbon Dioxide | 025A | SSA0025A | 0 – 5% v/v | 0.01% v/v | NDIR
Carbon Dioxide | 025B | SSA0025B | 0 – 100% v/v | 1% v/v | NDIR
Carbon disulphide | 021A | SSA0021A | 0 – 50 ppm | 0.1 ppm | PID
Carbon Monoxide | 020A | SSA0020A | 0 – 1000 ppm | 1 ppm | EC
Chlorine | 060A | SSA0060A | 0 – 20 ppm | 0.1 ppm | EC
Chlorine | 060B | SSA0060B | 0 – 10 ppm | 0.1 ppm | EC
ETO** | 083A | SSA0083A | 0 – 20 ppm | 0.1 ppm | EC
ETO** | 083B | SSA0083B | 0 – 100 ppm | 1 ppm | EC
Formaldehyde | 098A | SS00098A | 0 – 10 ppm | 0.1 ppm | EC
HC (Methane) | 099A | SSA0099A | 0 – 100% LEL | 1% LEL | Pellister
HC (Methane) | 099G | SSA0099G | 500 – 10000 ppm | 10 ppm | Solid State
Hydrogen (IIC) | 090C | SSA0090C | 0 – 100% LEL | 1% LEL | Pellister
Hydrogen (IIC) | 090A | SSA0090A | 0 – 1000 ppm | 1 ppm | EC
Hydrogen (IIC) | 090B | SSA0090B | 0 – 100% LEL | 1% LEL | EC
Hydro Carbon | 099H | SSA0099H | 50 – 1000 ppm | 1 ppm | Solid State
Hydrogen Chloride* | 070A | SS00070A | 0 – 20 ppm | 0.1 ppm | EC
Hydrogen Cyanide | 075A | SSA0075A | 0 – 100 ppm | 1 ppm | EC
Hydrogen Fluoride* | 072A | SS00072A | 0 – 10 ppm | 0.1 ppm | EC
Hydrogen Sulphide | 030A | SSA0030A | 0 – 100 ppm | 1 ppm | EC
Hydrogen Sulphide | 030B | SSA0030B | 0 – 20 ppm | 1 ppm | EC
LPG | 099B | SSA0099B | 0 – 100% LEL | 1% LEL | Pellister
Methane | 099E | SSA0099E | 0 – 100% LEL | 1% LEL | NDIR
Methane | 099F | SSA0099F | 0 – 100% v/v | 1% v/v | NDIR
Mercaptan* | 035A | SS00035A | 0 – 20 ppm | 0.1 ppm | EC
Methanol** | XXA | – | 0 – 100 ppm | 1 ppm | EC
Nitrogen Dioxide | 081A | SS00081A | 0 – 20 ppm | 0.1 ppm | EC
Oxygen | 010A | SSA0010A | 0 – 25% v/v | 0.1% v/v | EC
Ozone* | 015A | SS00015A | 0 – 1 ppm | 0.01 ppm | EC
PCl3* | 071A | SS00071A | 0 – 10 ppm | 1 ppm | EC
Phosgene* | 055A | SS00055A | 0 – 1 ppm | 0.01 ppm | EC
Phosphine | 050A | SS00050A | 0 – 10 ppm | 0.01 ppm | EC
POCl3* | 073A | SS00073A | 0 – 20 ppm | 1 ppm | EC
Propane | 099J | SSA0099J | 0 – 100% LEL | 1% LEL | Pellister
Propane | 099I | SSA0099I | 0 – 100% LEL | 1% LEL | NDIR
Sulphur Dioxide | 040A | SSA0040A | 0 – 20 ppm | 0.1 ppm | EC
Vinyl Chloride (VCM)* | 022A | SSA0022A | 0 – 100 ppm | 1 ppm | EC
VOC | 100A | SSA0100A | 0 – 1000 ppm | 1 ppm | PID
VOC | 100B | SSA0100B | 0 – 40 ppm | 0.1 ppm | PID
VOC (Benzene) | 100C | SSA0100C | 0 – 20 ppm | 0.1 ppm | PID

Legend
EC: Electrochemical • Pellister: Pellister • NDIR: Non-Dispersive Infra-Red • PID: Photo Ionization Detection

Notes
* Consult factory for more information
** Select sensors available; contact supplier for details

Downloads

• KwikSense Pro Brochure (PDF)

Technical specifications

• Sensor technology: EC / PELL / NDIR / PID / SS / MPS
• Operating voltage: 18 to 30 VDC
• System type: µController-based instrument (non-intrusive calibration)
• Display: 8 x 2 OLED
• Sampling type: Diffusion
• Sensor: Swappable Smart Sensor (pre-calibrated options)
• LEDs: Tri-colour LED
• Alarms: Two user-settable alarms
• Output: 4-20 mA / MODBUS over RS-485 / HART over 4-20 mA (optional)
• Relays: 3 potential-free contacts
• Load resistance: 600 Ω (max)
• Power consumption: < 3 W
• Enclosure: Flameproof – Cast aluminium alloy / SS-316
• Ingress protection: IP66
• Dimensions (mm) approx.: 155 x 145 x 100 (without cable gland & stopper)
• Wire configuration: 3/4 wires
• Interface: Calibration & configuration via non-intrusive magnetic wand
• Operating temperature: -40 to +65 °C (sensor dependent)
• Operating pressure: Ambient + 10%
• Operating humidity: 0-95% RH (extended exposure to extreme humidity may degrade sensor performance)
• Cable entries: ½” NPT (M20) – 2 entries / ¾” NPT (M25) – 2 entries
• Certifications: ATEX, IECEx, SIL2, CE, HART
• Weight: approx. 2.3 kg