ZA Series Zero Air Generators | GC-FID & Instrument Air

Choose Your Format

Seven product families for every zero air application

From ultra-compact benchtop units for a single GC-FID to high-flow standalone generators with integrated compressors for demanding multi-instrument labs — the ZA Series covers every zero air need.

📐

ZA FID Air

Ultra-compact benchtop zero air generators. External compressed air required. Stackable with HG and NG units.

5 models · 1.5 / 3 / 6 / 15 / 30 L/min

🖥️

ZA RACK FID Air

Standard 19" rack-mount zero air generators. 2U (1.5–6 L/min) and 4U (15–50 L/min) profiles. External air required.

6 models · 1.5 / 3 / 6 / 15 / 30 / 50 L/min

🔌

ZA FID Air C

Integrated oil-free piston compressor — plug in and generate. No compressed air infrastructure needed. 3 models.

3 models · 1.5 / 3 / 6 L/min

🏗️

ZA FID Air C PLUS

High-capacity standalone with integrated compressor. Up to 30 L/min. Large internal tanks for peak demand buffering.

5 models · 1.5 / 3 / 6 / 15 / 30 L/min

⚗️

ZA TOTAL

Multi-contaminant zero air — removes HC, CO, NOx, SO₂, and CO₂. For environmental reference and emission monitoring.

5 models · 1.5 / 3 / 6 / 15 / 30 L/min

🧪

ZA TOTAL C / C HP

Standalone TOTAL purification with integrated compressor. Ultrapure dew points to −70°C. For the most demanding refs.

5 models · 1.5 / 3 / 6 L/min

🔬

ZA FID Air MC

Multi-channel compressor version with up to 2 independent zero air outlets. For dual-instrument or backup-supply labs.

2 models · 1.5 / 3 L/min

⚡

ZA RACK FID Air

Rack-integrated format for instrument bay deployments. Stackable with HG and NG RACK generators for complete gas panels.

2U & 4U · up to 50 L/min

Benchtop · External Compressed Air

ZA FID Air Series

Ultra-compact benchtop zero air generators using palladium-catalyst technology. Removes hydrocarbons to <0.05 ppm from external compressed air. Stackable with HG Hydrogen and NG Nitrogen generators for a complete GC gas panel in one rack column. RS-485 standard.

FID AIR 1.5

ZA FID Air 1.5

1.5 L/min

HC Content<0.05 ppm
Pressure (Max)Inlet – 0.5 bar
Noise<35 dB(A)
Size (W×D×H)27×47×14 cm
Weight<8 kg

Single GC-FID instrument supply. Ultra-thin 14 cm profile — slots into any bench. Palladium catalyst oven purification.

FID AIR 3.0

ZA FID Air 3.0

3.0 L/min

HC Content<0.05 ppm
Pressure (Max)Inlet – 0.5 bar
Noise<35 dB(A)
Size (W×D×H)27×47×14 cm
Weight<8 kg

FID AIR 6.0

ZA FID Air 6.0

6.0 L/min

HC Content<0.05 ppm
Pressure (Max)Inlet – 0.5 bar
Noise<35 dB(A)
Size (W×D×H)27×47×14 cm
Weight<10 kg

FID AIR 15

ZA FID Air 15.0

15.0 L/min

HC Content<0.05 ppm
Pressure (Max)Inlet – 0.5 bar
Noise<35 dB(A)
Size (W×D×H)27×55×15 cm
Weight<11 kg

Mid-range flow for multiple GC-FID instruments or high-flow detectors. Larger catalyst bed for sustained high output.

FID AIR 30

ZA FID Air 30.0

30.0 L/min

HC Content<0.05 ppm
Pressure (Max)Inlet – 0.5 bar
Noise<35 dB(A)
Size (W×D×H)27×55×28 cm
Weight<17 kg

Highest flow benchtop FID Air model. Ideal for multi-instrument labs or high-demand fuel-air supply applications.

Stackable Design

ZA FID Air units share the same footprint and mounting standard as HG Hydrogen and NG RACK generators — all three can be stacked in a standard 19" instrument bay to form a complete, self-contained GC gas supply panel with zero air, hydrogen, and nitrogen from a single column.

19" Rack-Mount · External Compressed Air

ZA RACK FID Air Series

Standard 19" rack-mount zero air generators for instrument bays. 2U profile for 1.5–6 L/min, 4U profile for 15–50 L/min. Palladium-catalyst purification, RS-485, <0.05 ppm HC. Stackable with HG and NG RACK generators for full gas panel integration.

RACK 2U

ZA RACK FID 2U

1.5 / 3.0 / 6.0 L/min

HC Content<0.05 ppm
Pressure (Max)Inlet – 0.5 bar · 6.5 bar
ProfileStandard 2U · 48 cm deep
Weight13 kg
Noise<35 dB(A)

Compact 2-unit rack profile for small-flow FID applications. Three flow configurations: 1.5, 3.0, or 6.0 L/min. Fits any 19" instrument cabinet.

RACK 4U

ZA RACK FID 4U

15 / 30 / 50 L/min

HC Content<0.05 ppm
Pressure (Max)Inlet – 0.5 bar · 6.5 bar
ProfileStandard 4U · 40–65 cm deep
Weight18–20 kg
Noise<35 dB(A)

High-flow 4U rack model. 50 L/min variant uses 65 cm deep chassis. For multi-instrument labs with multiple GC-FID detectors or high-demand applications.

Integrated Compressor · Plug & Play

ZA FID Air C Series

Self-contained zero air generators with integrated 100% oil-free piston compressor and palladium catalyst oven — simply connect to power and start generating. No external compressed air required. RS-485 and RS-232 standard. Benchtop form factor.

FID AIR C 1.5

ZA FID Air C 1.5

1.5 L/min

HC Content<0.05 ppm
Pressure2–7 bar
Dew Point<−30°C
Power750 W
Size (W×D×H)27×44×41 cm

Truly standalone — plug into wall power and start producing zero air. Built-in oil-free piston compressor. For single GC-FID without compressed air infrastructure.

FID AIR C 3.0

ZA FID Air C 3.0

3.0 L/min

HC Content<0.05 ppm
Pressure2–7 bar
Dew Point<−30°C
Power750 W
Size (W×D×H)27×44×41 cm

FID AIR C 6.0

ZA FID Air C 6.0

6.0 L/min

HC Content<0.05 ppm
Pressure2–7 bar
Dew Point<−30°C
Power750 W
Size (W×D×H)27×44×41 cm

Highest flow C model. Three independent flow configurations from the same chassis. RS-232 for service, RS-485 for lab automation.

High-Capacity Standalone · Integrated Compressor

ZA FID Air C PLUS Series

High-capacity standalone zero air generators with integrated 100% oil-free compressor, internal 10 L air tank, and 5 L buffer tank — designed for continuous 24/7 operation and peak demand buffering. Up to 30 L/min from a single plug-in unit. No external air source needed.

C PLUS 1.5

ZA FID Air C PLUS 1.5

1.5 L/min

HC Content<0.05 ppm
Pressure2–7 bar (101.5 psi)
Dew Point<−30°C
Power1000 W
Size (W×D×H)43×75×68 cm

C PLUS 3.0

ZA FID Air C PLUS 3.0

3.0 L/min

HC Content<0.05 ppm
Pressure2–7 bar
Dew Point<−30°C
Power1000 W
Weight90 kg

C PLUS 6.0

ZA FID Air C PLUS 6.0

6.0 L/min

HC Content<0.05 ppm
Pressure2–7 bar
Dew Point<−30°C
Power1000 W
Size (W×D×H)43×75×68 cm

C PLUS 15

ZA FID Air C PLUS 15.0

15.0 L/min

HC Content<0.05 ppm
Pressure2–7 bar
Dew Point<−30°C
Power1000 W
Size (W×D×H)43×75×68 cm

C PLUS 30

ZA FID Air C PLUS 30.0

30.0 L/min

HC Content<0.05 ppm
Pressure2–7 bar
Dew Point<−30°C
Power1000 W
Noise<52 dB(A)

Highest-flow C PLUS model — 30 L/min for multi-instrument FID labs or continuous high-demand supply. Internal 10 L + 5 L tanks buffer peak demand.

Multi-Contaminant Purification · External Air

ZA TOTAL Series

The ZA TOTAL goes beyond FID air — it removes not only hydrocarbons, but also CO, NOx, SO₂, and CO₂ for true zero reference air. Essential for environmental monitoring, emissions analyzers, and any instrument measuring trace atmospheric components. Exceptional dew points to −75°C on smaller models.

TOTAL 1500

ZA TOTAL 1500

1.5 L/min

HC / CO / NOx / SO₂<0.05 ppm
CO₂<5 ppm
Dew Point<−75°C
PressureInlet – 1 bar
Size (W×D×H)27×48×28 cm

True zero reference air — removes 5 contaminant classes. Exceptional −75°C dew point. RS-485 standard.

TOTAL 3000

ZA TOTAL 3000

3.0 L/min

HC / CO / NOx / SO₂<0.05 ppm
CO₂<5 ppm
Dew Point<−75°C
PressureInlet – 1 bar
Size (W×D×H)27×48×28 cm

TOTAL 6000

ZA TOTAL 6000

6.0 L/min

HC / CO / NOx / SO₂<0.05 ppm
CO₂<5 ppm
Dew Point<−75°C
PressureInlet – 1 bar
Size (W×D×H)27×48×28 cm

TOTAL 15000

ZA TOTAL 15000

15.0 L/min

HC / CO / NOx / SO₂<0.05 ppm
CO₂<5 ppm
Dew Point<−70°C
PressureInlet – 1 bar
Size (W×D×H)27×48×41 cm

TOTAL 30000

ZA TOTAL 30000

30.0 L/min

HC / CO / NOx / SO₂<0.05 ppm
CO₂<5 ppm
Dew Point<−70°C
PressureInlet – 1 bar
Size (W×D×H)27×48×41 cm

Highest-flow TOTAL model. Removes HC, CO, NOx, SO₂, and CO₂ at 30 L/min for multi-analyzer environmental monitoring stations.

ZA TOTAL vs. ZA FID Air — What's the difference?

ZA FID Air removes hydrocarbons only (<0.05 ppm HC) — sufficient for GC-FID fuel air. ZA TOTAL additionally removes CO, NOx, SO₂, and CO₂ for true multi-contaminant zero reference air required by environmental monitors, CEMs, and atmospheric analyzers where trace gas background interference must be eliminated.

Multi-Contaminant · Integrated Compressor

ZA TOTAL C & TOTAL C HP Series

Self-contained multi-contaminant zero air generators — full TOTAL purification (HC, CO, NOx, SO₂, CO₂) with integrated oil-free compressor. No external air needed. The HP variant achieves an exceptional −70°C dew point and <0.1 ppm CO₂ for the most demanding reference applications.

TOTAL C 1.5

ZA TOTAL C 1.5

1.5 L/min

HC / CO / NOx / SO₂<0.05 ppm
CO₂<5 ppm
Dew Point<−60°C
Pressure (Max)6 bar (87 psi)
Power1000 W · 90 kg

Standalone TOTAL purification with built-in compressor. Plug in, power on, generate certified reference air. RS-485, RS-232, optional alarm contact.

TOTAL C 3.0

ZA TOTAL C 3.0

3.0 L/min

HC / CO / NOx / SO₂<0.05 ppm
CO₂<5 ppm
Dew Point<−60°C
Pressure (Max)6 bar
Size (W×D×H)43×75×68 cm

TOTAL C 6.0

ZA TOTAL C 6.0

6.0 L/min

HC / CO / NOx / SO₂<0.05 ppm
CO₂<5 ppm
Dew Point<−60°C
Pressure (Max)6 bar
Size (W×D×H)43×75×68 cm

TOTAL C HP 1.5

ZA TOTAL C HP 1.5

1.5 L/min · Ultra-pure

HC / CO / NOx / SO₂<0.05 ppm
CO₂<0.1 ppm
Dew Point<−70°C
Pressure (Max)6 bar (87 psi)
Power1000 W · 95 kg

Highest-purity ZA model. CO₂ removal to <0.1 ppm (vs 5 ppm for standard TOTAL C) and dew point to −70°C. For NIST-traceable calibration references and regulatory monitoring.

TOTAL C HP 3.0

ZA TOTAL C HP 3.0

3.0 L/min · Ultra-pure

HC / CO / NOx / SO₂<0.05 ppm
CO₂<0.1 ppm
Dew Point<−70°C
Pressure (Max)6 bar
Size (W×D×H)43×75×68 cm

Multi-Channel Compressor Models

ZA FID Air MC Series

Multi-channel zero air generators with integrated compressor — providing two independent, regulated zero air outlets from a single unit. Ideal for dual-instrument labs, redundant supply, or locations requiring independent flow/pressure for two separate GC-FID systems.

FID AIR MC 1.5

ZA FID Air MC 1.5

1.5 L/min (×2 channels)

HC Content<0.05 ppm
Pressure2–7 bar (100 psi)
Dew Point<−30°C
Power750 W
Size (W×D×H)27×44×41 cm

Two independently regulated zero air outlets. RS-485 and RS-232. Palladium catalyst. Oil-free compressor. For dual GC-FID setups from a single generator.

FID AIR MC 3.0

ZA FID Air MC 3.0

3.0 L/min (×2 channels)

HC Content<0.05 ppm
Pressure2–7 bar
Dew Point<−30°C
Power750 W · 35 kg
Size (W×D×H)27×44×41 cm

Higher flow dual-channel variant. Two 3 L/min outputs independently regulated. Compact same footprint as FID Air C series.

Technology

Why choose ZA Series

🔥

Palladium Catalyst

Catalytic oxidation using a palladium-filled oven converts hydrocarbon contaminants to water and CO₂, then removes them — achieving <0.05 ppm THC reliably across the full flow range.

💧

Molecular Sieve Drying

Multi-stage drying with molecular sieves and cooling coils achieve atmospheric dew points as low as −75°C — ensuring baseline stability for sensitive humidity-affected detectors.

🔌

Integrated Compressor

C, C PLUS, TOTAL C, and TOTAL C HP models include built-in 100% oil-free piston compressors — completely standalone with no compressed air infrastructure required.

🔗

Stackable Design

ZA FID Air and RACK series share the same footprint and rack standard as HG and NG generators — stack all three into a single instrument bay for a complete GC gas supply panel.

📡

RS-485 Standard

All models include RS-485 for lab automation and remote monitoring. C-series models add RS-232 for service. Optional alarm contacts available on TOTAL C series.

♻️

Eliminate Cylinders

Permanent, continuous on-demand zero air at a fraction of cylinder cost. Eliminate cylinder rentals, deliveries, regulator changes, and handling risks in your lab.

Applications

Proven performance across
analytical disciplines

From routine GC-FID flame air to regulatory-grade environmental reference standards, ZA Series generators deliver certified zero air performance for the full spectrum of analytical needs.

GC-FID Fuel Air

Primary application — oxidant gas for Flame Ionization Detectors. Zero HC background ensures detector sensitivity and baseline stability for accurate quantitation.

Environmental Monitoring

Zero reference gas for continuous emissions monitors (CEMs) and ambient air analyzers measuring VOCs, CO, NOx, SO₂, and ozone. ZA TOTAL removes all interferents.

Instrument Zero Calibration

Zero reference standard for span/zero calibration routines on any instrument measuring hydrocarbon or trace gas concentrations. Traceable to known zero baseline.

GC-ECD / GC-PID

Clean, dry carrier and make-up gas for Electron Capture and Photoionization Detectors. Hydrocarbon-free ensures no background interference with electron-sensitive detectors.

TOC Analyzers

Hydrocarbon-free purge gas for Total Organic Carbon analyzers. Zero air eliminates atmospheric HC background that would inflate TOC readings.

FTIR Purge Gas

CO₂ and hydrocarbon-free purge for FTIR instrument optical paths. ZA TOTAL removes both HC and CO₂, eliminating absorption bands that interfere with spectra.

Ambient Air Monitors

Zero air background for ozone, NOx, SO₂, and CO ambient monitoring stations. Regulatory-compliant zero reference for EPA Method reference equivalency programs.

Combustion Analysis

Clean oxidant gas for combustion testing and calorimetry. Hydrocarbon-free air eliminates HC contribution to combustion analysis results.

Semiconductor / Cleanroom

Ultra-pure process air for cleanroom environments, wafer processing, and semiconductor manufacturing where trace HC contamination is critical.

Calibration Gas Dilution

Diluent gas for preparing calibration standards by dynamic dilution of certified reference gas mixtures to required concentration levels.

Quick Reference

Model comparison

Compare key specifications across the ZA Series lineup to select the ideal zero air generator for your application and infrastructure.

Model	Flow Rate	HC Content	Dew Point	Air Source	CO₂ Removal
ZA FID Air 1.5	1.5 L/min	<0.05 ppm	<−35°C	External	No
ZA FID Air 3.0	3.0 L/min	<0.05 ppm	<−35°C	External	No
ZA FID Air 6.0	6.0 L/min	<0.05 ppm	<−35°C	External	No
ZA FID Air 15.0	15.0 L/min	<0.05 ppm	<−35°C	External	No
ZA FID Air 30.0	30.0 L/min	<0.05 ppm	<−35°C	External	No
ZA RACK FID 2U (1.5–6)	1.5–6.0 L/min	<0.05 ppm	<−35°C	External	No
ZA RACK FID 4U (15–50)	15–50 L/min	<0.05 ppm	<−35°C	External	No
ZA FID Air C 1.5	1.5 L/min	<0.05 ppm	<−30°C	Built-in	No
ZA FID Air C 3.0	3.0 L/min	<0.05 ppm	<−30°C	Built-in	No
ZA FID Air C 6.0	6.0 L/min	<0.05 ppm	<−30°C	Built-in	No
ZA FID Air C PLUS 1.5	1.5 L/min	<0.05 ppm	<−30°C	Built-in	No
ZA FID Air C PLUS 3.0	3.0 L/min	<0.05 ppm	<−30°C	Built-in	No
ZA FID Air C PLUS 6.0	6.0 L/min	<0.05 ppm	<−30°C	Built-in	No
ZA FID Air C PLUS 15.0	15.0 L/min	<0.05 ppm	<−30°C	Built-in	No
ZA FID Air C PLUS 30.0	30.0 L/min	<0.05 ppm	<−30°C	Built-in	No
ZA FID Air MC 1.5	1.5 L/min ×2	<0.05 ppm	<−30°C	Built-in	No
ZA FID Air MC 3.0	3.0 L/min ×2	<0.05 ppm	<−30°C	Built-in	No
ZA TOTAL 1500	1.5 L/min	<0.05 ppm	<−75°C	External	<5 ppm
ZA TOTAL 3000	3.0 L/min	<0.05 ppm	<−75°C	External	<5 ppm
ZA TOTAL 6000	6.0 L/min	<0.05 ppm	<−75°C	External	<5 ppm
ZA TOTAL 15000	15.0 L/min	<0.05 ppm	<−70°C	External	<5 ppm
ZA TOTAL 30000	30.0 L/min	<0.05 ppm	<−70°C	External	<5 ppm
ZA TOTAL C 1.5	1.5 L/min	<0.05 ppm	<−60°C	Built-in	<5 ppm
ZA TOTAL C 3.0	3.0 L/min	<0.05 ppm	<−60°C	Built-in	<5 ppm
ZA TOTAL C 6.0	6.0 L/min	<0.05 ppm	<−60°C	Built-in	<5 ppm
ZA TOTAL C HP 1.5	1.5 L/min	<0.05 ppm	<−70°C	Built-in	<0.1 ppm
ZA TOTAL C HP 3.0	3.0 L/min	<0.05 ppm	<−70°C	Built-in	<0.1 ppm

ZA SeriesZero Air Generators

Seven product families for every zero air application

ZA FID Air

ZA RACK FID Air

ZA FID Air C

ZA FID Air C PLUS

ZA TOTAL

ZA TOTAL C / C HP

ZA FID Air MC

ZA RACK FID Air

ZA FID Air Series

ZA FID Air 1.5

ZA FID Air 3.0

ZA FID Air 6.0

ZA FID Air 15.0

ZA FID Air 30.0

ZA RACK FID Air Series

ZA RACK FID 2U

ZA RACK FID 4U

ZA FID Air C Series

ZA FID Air C 1.5

ZA FID Air C 3.0

ZA FID Air C 6.0

ZA FID Air C PLUS Series

ZA FID Air C PLUS 1.5

ZA FID Air C PLUS 3.0

ZA FID Air C PLUS 6.0

ZA FID Air C PLUS 15.0

ZA FID Air C PLUS 30.0

ZA TOTAL Series

ZA TOTAL 1500

ZA TOTAL 3000

ZA TOTAL 6000

ZA TOTAL 15000

ZA TOTAL 30000

ZA TOTAL C & TOTAL C HP Series

ZA TOTAL C 1.5

ZA TOTAL C 3.0

ZA TOTAL C 6.0

ZA TOTAL C HP 1.5

ZA TOTAL C HP 3.0

ZA FID Air MC Series

ZA FID Air MC 1.5

ZA FID Air MC 3.0

Why choose ZA Series

Palladium Catalyst

Molecular Sieve Drying

Integrated Compressor

Stackable Design

RS-485 Standard

Eliminate Cylinders

Proven performance acrossanalytical disciplines

GC-FID Fuel Air

Environmental Monitoring

Instrument Zero Calibration

GC-ECD / GC-PID

TOC Analyzers

FTIR Purge Gas

Ambient Air Monitors

Combustion Analysis

Semiconductor / Cleanroom

Calibration Gas Dilution

Model comparison

Ready to eliminate zero air cylinders?

ZA Series
Zero Air Generators

Proven performance across
analytical disciplines