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Nuvair Multigas SAT Color Alarm Analyzer

SKU

SAT

Designed for commercial dive operators and hyperbaric facilities, the Multigas SAT Color connects to and displays data on up to six (6) sensors, such as oxygen (O2), carbon dioxide (CO2), hydrogen sulfide (H2S), humidity, temperature, and pressure, among others. The color display allows for continuous monitoring of gases and other factors in a variety of environments, including hyperbaric chambers and diving bells up to 35 bar (508 psi | 1150 fsw). Its nonvolatile memory retains settings for up to 10 years without power. The Multigas SAT Color comes in a single water-resistant carrying case and is custom-built to user specifications.

Details

The Nuvair Multigas Color is mounted in a water- and impact-resistant case with a powder-coated aluminum instrument panel. TFT 320×240 dpi color display with backlit LED generates 600 nits (cd/m²) light intensity and allows for viewing of dynamic gas concentration graphs. For hyperbaric chamber operations, both the Multigas SAT instrumentation box and sensors can be placed inside of the chamber to allow for onboard monitoring, or the sensor connections can be routed outside of the chamber to allow for external monitoring. The unit can display the following values:

Actual reading of sensors
Partial Pressure (PP) of gas sensors
Surface Equivalent Value (SEV) of the sensors related to surface pressure of 14.7 psi (1 bar)
Sensor electrical values
Graph of sensor values over time

General Specifications

Input Voltage Requirement	10–35 VDC
Internal Battery	Lithium-ion rechargeable battery: 1400 mAh 3.7V
Inputs	Up to six (6) sensors
Output	Onboard acoustic buzzer alarm
Serial Connection	1 RS232 interface. Baud rate up to 115000 baud, on request: RS485 interface
Measure Resolution	24 bit bipolar A/D converter Drift in temperature automatic compensation
Conversion Rate	10 ms
Sampling Time	100 ms (min) for each channel
Signal Measuring Accuracy	0.1% Full Scale ±1/2 LSB
Display Screen Size	5.3×2.9 in (135×74 mm)
Display Device	TFT 320×240 dpi resolution, backlit LED
Display Light Intensity	600 nits (cd/m²)
Memory	Nonvolatile micro SD card writer/reader
Microprocessor	Cortex M4
Standard Case Dimensions	12 × 10.6 × 5.7 in (305 × 270 × 144 mm)
Weight	4.4 lb (2 kg)

Advantages

Programmable alarm thresholds
Audible and visual alarms
Fast response
Packaged in a compact water- and impact-resistant container
Easy to operate, reliable, and accurate
Optional external panel mounting of sensors and instrumentation
Upgrade firmware using an SD card
Designed for use in hyperbaric chambers and commercial dive operations; tested to 35 bar/ata*

Features

Digital analyzer with color display plots dynamic gas concentration graphs
Audible and visual alarms
Standard (6) sensor configuration: oxygen (O₂), carbon dioxide (CO₂), hydrogen sulfide (H₂S), moisture (H₂O), temperature, and pressure
Controlled by a rotary/push knob
Sensor status indicators
User-replaceable Li-ion batteries and sensors
Onboard acoustic buzzer alarm
Battery voltage indicator
Includes a car lighter socket external power supply
Plug the unit into a personal computer for continuous data reading
Bluetooth LE equipped
Micro SD card reader/writer produces a .CSV spreadsheet file

CO₂ Sensor

Non-dispersive infrared (NDIR) sensor
Resolution: 0-5000 ppm / 50 ppm resolution from 0 to 2500 ppm then 100 ppm up to full scale
Temperature working range: -20°C to 50°C (-4°F to 122°F)
Humidity working range: 0 to 95% rh, non-condensing

H₂S Sensor

Range: 0–50 ppm
Sensitivity range: 1200 ±250 nA/ppm
Resolution at 68°F (20°C): <0.1ppm
Linearity: <5% full scale

O₂ Sensor

Range: 0-100%
Accuracy: ±2% over full scale
Linearity: Within ±2% over full scale
Long life medical galvanic cell (up to 48 months)
No effects with gases like CO, CO₂, NOx, N₂, H₂, Ar, or He

Moisture Monitor

Measuring range: 0.0 to 100% rh
Resolution: 0.5% rh
Accuracy: ±2% rh

Temperature Sensor

Range: -4 to 176°F (-20 to 80°C)
Display options: °F or °C

Pressure Sensor

Displayed as:
- bar
- psi
- atmospheres (ATM)
- feet/meter seawater (fsw/msw)
- feet/meter freshwater (ffw/mfw)

Software Menu

Start Log
Settings
- Brightness
- Languages
- Units
- Alarm Configuration
- Date and Time
- Select Skin
- Factory Reset
Calibration
Alarm
Export Data

Page Displays

Page 1: Startup
Page 2: Gas mixture (percentage, ppm, or other scale)
Page 3: Gas mixture (partial pressure related to actual ambient pressure)
Page 4: Gas mixture (surface equivalent value [SEV] of 14.7 psi [1bar])
Page 5: mA and mV values of sensor and transducers
Page 6: Gas reading graphs over time (each gas has its own display page)

Power Options

Wall Plug-in: US (United States) includes power adapter for cigarrette car lighter
Wall Plug-in: AU (Australia) includes power adapter for cigarette car lighter
Wall Plug-in: UK (United Kingdom) includes power adapter for cigarette car lighter
Wall Plug-in: EU (European Union) includes power adapter for cigarette car lighter
Rechargeable Lithium Battery & Charger
DIN Rail Power Supply

*In pressurized environments, the calibration of sensors must be performed at the same pressure with sample or ambient gas of known concentration.

The Nuvair SAT Multigas Color is custom-built to your requirements. For this reason, this unit is not available for immediate shipping. Please contact the sales team for estimated lead times and pricing.

The Nuvair Multigas Color is custom-built to your requirements. For this reason, this unit may not be available for immediate shipping. Please contact the sales team for estimated lead times.

WARNING: Never expose gas sensors to pressure or you may cause damage and/or false readings. Damaged sensors will not provide accurate gas analysis. Most gas analyzers can be used to analyze a regulated gas sample flow, the contents of a gas cylinder, or the flow from a regulator. The flow rate of gas must equal 1–5 L/min. To produce this flow, a Flow Restrictor and Regulator may be required. A faulty Flow Restrictor can lead to a false analyzer reading. Flow Restrictors should be regularly tested with a Flow Meter. Inaccurate gas analysis can lead to serious personal injury or death.

Excessive flow rates create unacceptable sensor pressure and cause false readings. All Nuvair gas sensors have been tested to pressures of 35 bar/ata, but analyzers do not read accurately unless calibrated at the same pressure of intended use. Use of sensors at pressures other than ambient requires special knowledge and training.

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