Manufacturer we represent

Delphian Corporation in the Southeast

Fixed-point combustible and toxic gas detection, from smart single-point monitors to networked multi-point systems.

Headquarters: Northvale, NJ
Coverage: All territories (TN territory: Tennessee & Mississippi only; Carolinas/Virginia territory: North Carolina only)

About Delphian Corporation

Delphian Corporation is a manufacturer of fixed-point gas detection equipment based in Northvale, New Jersey. It designs the sensors, transmitters, controllers and multi-point monitoring systems that warn plant personnel about combustible hydrocarbon and toxic gas hazards in industrial facilities and hazardous areas, onshore and offshore.

What Delphian makes

Delphian covers the main point-detection technologies under one roof, which simplifies facilities that must watch for several different gases.

For combustibles, engineers can choose catalytic bead monitors such as SafeCAL, paired with Delphian’s patented SensorSaver constant-temperature transmitter circuit, or fixed-point infrared detectors such as the Determinator and Remediator. For toxic gases and oxygen, electrochemical cells measure at parts-per-million levels.

The current flagship is GazTell, a modular smart head with a plain-language LED display. It recognizes its sensor cell, monitors its own health and records how long it has been since calibration. Relay, remote display and Modbus functions are separate add-on modules, so a simple point does not carry the cost of features it will never use.

Signals come together in single- and dual-channel controllers mounted in a Flexirack chassis, or in the SAGE-CE computerized system for larger sites that need plant graphics, event logs and remote alarm notification. Replacement filaments and catalytic beads, calibration kits and certified gases keep installed systems running.

Why engineers specify Delphian

Technology choice from one source. Catalytic, infrared, electrochemical and semiconductor sensing are all available, so each point can use the sensor that suits its gas and environment.
Less calibration labor. SafeCAL, GazTell and related products allow one-person magnetic or remote calibration without opening explosion-proof enclosures.
Open signals. 4–20 mA transmitters and Modbus RTU communication let Delphian sensors report to Delphian controllers or to an existing PLC or control system.
Hazardous-area approvals. Delphian lists FM and CSA approval for the Determinator, and its GazTell toxic and oxygen datasheet cites Class I, Divisions 1 and 2, Groups C and D.

Local support from Vaughn Associates

Vaughn Associates represents Delphian across Alabama, Georgia, South Carolina, Tennessee, Mississippi, Louisiana, Florida and North Carolina. That footprint includes Gulf Coast refining, petrochemical and chemical plants, oil and gas production and processing sites, and manufacturing facilities that handle solvents or ammonia.

A good gas detection design starts with the right questions: which gases, what alarm levels, which area classification, where the gas will collect, and how the signals should reach operators. Our sales engineers work through those details with you, help lay out detectors and controllers, and coordinate quotes, replacement sensors and calibration supplies with the factory. Purchases are typically made directly from Delphian.

Explore our gas detection systems overview, request application help through /for-engineers/, or find your local rep.

Catalytic, infrared, electrochemical and semiconductor sensing from one supplier

One-person calibration without opening explosion-proof housings

Modular GazTell heads, so you pay only for the display, relay or Modbus functions you need

Self-diagnostics that record calibration age, peak readings and remaining sensor life

Replacement sensors, calibration kits and gases for installed systems

Product lines

What Delphian makes — product categories we can help you specify.

GazTell modular gas monitors

Delphian's current-generation smart detector head, which recognizes its sensor cell automatically and tracks calibration history, remaining sensor life and temperature extremes. Plug-in modules add a remote display, alarm relays or Modbus RTU only where needed.

GazTell electrochemical toxic and oxygen head
GazTell IR Methane
SLAM relay module
EXMO remote display module
COMO Modbus communications module

Infrared hydrocarbon gas detectors

Fixed-point infrared detectors that measure combustible hydrocarbons with multiple optical channels and are not poisoned by the contaminants that degrade catalytic sensors. Readings are reported as % LEL or as percent by volume.

Determinator
Remediator

Catalytic bead combustible gas monitors

Traditional catalytic monitors for methane, propane, solvent and fuel vapors and hydrogen, well suited to dusty areas and to gases infrared cannot see.

SafeCAL Gas Monitor
Stand-Alone combustible sensors

Sensor transmitters

Epoxy-encapsulated transmitters that send a linear current signal over three-wire cable, so Delphian sensors can feed Delphian controllers or any PLC, datalogger or controller with a 4–20 mA input.

SensorSaver combustible sensor transmitter
Electrochemical sensor transmitter
Remote Calibration Module
Sensor Extension Kit

Controllers and Flexirack chassis

Rack-mount alarm controllers that display gas concentration and drive LO, HI, HIHI and FAIL relays, housed in a Flexirack sized to the exact channel count.

Micro Controller
DC Controller
Zone Alarm Modules
Flexirack

Computerized multi-point monitoring

A networked system that gathers many toxic and combustible sensing points onto one operator interface with plant graphics, event logging and remote alarm notification.

SAGE-CE

Replacement filament and catalytic bead sensors

Replacement sensing elements that keep installed Delphian combustible and thermal-conductivity instruments in service.

201 Blue thermal conductivity filament
201 Green catalytic combustion filament
362-010 matched-pair filament
361-072-01 3 V catalytic bead

Calibration kits, gases and accessories

Field calibration hardware, zero and span gases and mounting accessories for keeping detectors accurate. Delphian recommends calibration every 30 to 90 days.

Flow Calibration Kits Type A and Type B
Static Calibration Kit Type C
Zero air and span gas canisters
Magnetic calibrator
SafePRO programming software

Applications

Onshore and offshore production facilities
Hydrocarbon processing units
Chemical plant solvent handling areas
Ammonia and chlorine monitoring
Hydrogen sulfide detection
Fuel storage and transfer areas
Wastewater treatment gas monitoring
Class I, Division 1 and 2 area monitoring

Standards & certifications

FM approved (Determinator)
CSA approved (Determinator)

FAQ

Common questions about Delphian

Should I choose a catalytic bead or infrared sensor for combustible gas detection?

Delphian makes both. Catalytic bead sensors are compact and economical, tolerate dusty or dirty air and respond to hydrogen, but silicones and halocarbons can poison them, so regular calibration matters. Infrared detectors such as the Determinator are immune to catalyst poisons and check themselves continuously, which reduces calibration work. Infrared cannot detect hydrogen or other non-hydrocarbon gases, so the target gas often decides the choice.

Which gases can the Delphian GazTell monitor detect?

GazTell electrochemical heads are offered for ammonia, carbon monoxide, chlorine, hydrogen cyanide, hydrogen sulfide, nitrogen dioxide, sulfur dioxide and oxygen, and an infrared GazTell version covers methane. The head identifies the installed cell automatically and provides a 4–20 mA output. Modbus RTU communication is added with the optional COMO module, relays with the SLAM module and a remote display with EXMO.

How does the Delphian Determinator measure hydrocarbon gas?

The Determinator is a fixed-point infrared detector that uses three active optical channels and one reference channel to measure combustible hydrocarbons. A five-digit LED display shows readings in percent of the lower explosive limit, and the unit provides a 4–20 mA output proportional to LEL, with optional RS-422/485 and a four-relay SLAM module. Delphian lists the Determinator as FM and CSA approved.

Can one technician calibrate a Delphian gas detector without opening the explosion-proof housing?

Yes. The SafeCAL monitor uses one-touch magnetic calibration: the technician zeros the sensor in clean air and then applies span gas, all without removing the enclosure cover. GazTell also calibrates with a magnetic tool and can be calibrated from a remote EXMO display module. Delphian sells matching flow and static calibration kits and gases and recommends calibrating every 30 to 90 days.

How can I monitor many gas detection points from a central location?

For smaller systems, Delphian's single-channel Micro Controller and two-channel DC Controller slide into a Flexirack chassis built for 1 to 16 channels. Larger facilities can use the SAGE-CE computerized system, which connects RS-485 sensor and relay satellites of eight channels each. SAGE-CE displays plant graphics, logs events and can send email or text alarms through its web interface.

Who represents Delphian gas detection products in the Southeast?

Vaughn Associates, an independent manufacturer's representative headquartered in Huntsville, Alabama, represents Delphian Corporation in Alabama, Georgia, South Carolina, Tennessee, Mississippi, Louisiana, Florida and North Carolina. Vaughn's sales engineers help match sensor technology to the target gas and area classification, plan detector and controller layouts, and coordinate quotes, calibration supplies and replacement sensors with the factory.

Local support

Territory map