HEMERA

I N
E F
BeBe D R
A A
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selectiveselective


L800 & G800
ONLINE MONITORING FOR
LIQUID & GAS ANALYSIS
WIDE APPLICATION
IN OPTION RANGES ACCURATE


Hemera Analyzers sales@hemera.fr • +33 6 77 87 63 00 • +33 4 76 63 27 52
www.hemera.fr 25 avenue du Granier - 38240 Meylan - FRANCE z

ONLINE
LIQUID & GAS
ANALYZERS
Hemera is an innovative company dedicated to the development, production,
and sales of online liquid and gas analyzers. Based in Grenoble, a city recognized
by Forbes magazine as one of the world’s most innovative, Hemera has strong
collaborations with universities and prestigious research institutions.
Our primary objective is to provide solutions that offer selective and sensitive measurements,
particularly in detecting and quantifying pollutants at low concentrations.
Hemera’s product range serves two distinct markets: those responsible for gas or liquid
environmental monitoring to ensure regulatory compliance, and manufacturers seeking
to optimize production processes, reduce costs, and enhance performance.
Our analyzers employ a high-resolution optical system, efficientmathematical algorithms,
and an innovative sampling system, ensuring reliability and the capability to measure
pollutants at extremely low concentrations without interference from the environment.


HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr

 HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr
GAS ANALYSIS APPLICATIONS

EMISSIONS AMBIENT AIR



HYDROGEN PROCESS


NATURAL GAS
OIL & GAS BIOGAS
BIOMETHANE

LIQUID ANALYSIS APPLICATIONS

WASTEWATER PROCESS



DRINKING SURFACE
WATER WATER



SEAWATER POOL WATER

 Ensure the best water quality

L800 Powerful analytical method
WATER High reliability & robustness
Customized to your requirements
Quality after-sales service
& LIQUID Wide application ranges
Low maintenance
ANALYZER Long life-time
No interferences (Turbidity, Color, Salinity…)
Highly selective
Fast response time

Mono or multi-prameter may be required.
PARAMETERS METHODS RANGES ACCURACY DETECTION LIMIT RESPONSE TIME
AMMONIUM — NH4+ UV Spectroscopy - Gas phase 0.1 ... 1000 mg/L*
NITRATES — NO3- UV Spectroscopy 0.1 ... 100 mg/L*
NITRITES — NO2- UV Spectroscopy 0.1 ... 10 mg/L*
TOTAL NITROGEN — TN UV Spectroscopy 0.1 ... 100 mg/L*
PHOSPHATES — PO43- Colorimetry 0.1 ... 10 mg/L*
TOTAL PHOSPHATES — TP Colorimetry 0.1 ... 10 mg/L*
ORGANIC MATTER — CODeq UV Spectroscopy - Correlation 0.1 ... 10000 mg/L*
TOTAL ORGANIC CARBON — TOC IR Spectroscopy - Gas phase 0.1 ... 10000 mg/L*
SULFIDES — S2- UV Spectroscopy - Gas phase 0.1 ... 100 mg/L*
SULFITES — SO32- UV Spectroscopy - Gas phase 0.1 ... 100 mg/L*
TOTAL SULFUR — TS UV Spectroscopy - Gas phase 0.1 ... 100 mg/L*
TOTAL SUSPENDED SOLIDS — TSS IR Nephelometry 0.1 ... 10000 mg/L* From 0.1 % From 0.1 %
From 10 s
to 2 % to 2 %
to 2 min
TURBIDITY — Turb IR Nephelometry 0.1 ... 100 NTU* of full scale of full scale
COLOR Visible Spectroscopy 0.1 ... 1000 Pt-Co*
CHLORINE — Cl2 UV Spectroscopy - Gas phase 0.1 ... 10 mg/L*
CHLORINE DIOXIDE — ClO2 UV Spectroscopy - Gas phase 0.1 ... 10 mg/L*
TOTAL CHLORINE — TC UV Spectroscopy - Gas phase 0.1 ... 10 mg/L*
HYDROCARBON (OIL) — OIW UV Spectroscopy 0.1 ... 100 mg/L*
AROMATIC COMPOUNDS — BTEX UV Spectroscopy - Gas phase 0.1 ... 100 mg/L*
PHENOL — C6H5OH UV Spectroscopy - Gas phase 0.1 ... 100 mg/L*
DISSOLVED OXYGEN — DO Visible Fluorescence 0.1 ... 100 mg/L*
CONDUCTIVITY — EC Conductimeter 0.1 ... 1000 mS/cm*
OZONE — O3 UV Spectroscopy - Gas phase 0.1 ... 10 mg/L*
pH — H+ Potentiometry (probe) 0 ... 14*
*The parameter ranges are examples. Customized ranges on request.
= Patented

HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr

 HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr
Our powerful analytical method allows us
to be more selective and to offer a fast response time
UV FTLS SPECTROSCOPY IN LIQUID OR GAS PHASE
Thanks to the use of a high-resolution spectrograph combined with innovative mathematical processing,
this technique allows us to achieve greater precision and selectivity.
The principle is based on the absorption of light. After performing the absorption measurement, Fourier Transform and Least Square calculations
are applied through our software to determine the measurement result in real time. As no probe or instrument is in direct contact with the sample,
the maintenance frequency is greatly reduced when the measurement is performed by UV absorption spectroscopy.




IMAGE SENSOR MIRROR



The gas phase measure
1. Sampling
The neutral fluid is injected into the measuring cell to obtainthe blank.
2. Transformation of the ion into dissolved gas
The ion is transformed into dissolved gas in water and extracted in gas
phase through a sparger.
3. Acquisition of the absorption spectrum
The sample analyzed is injected into the measuring cell in order
to obtain the absorption spectrum.
4. Mathematical treatment
The mathematical treatment is applied to obtain the concentration
of the compound.

The liquid phase measure
1. Sampling
The neutral fluid is injected into the measuring cell to obtainthe blank.
2. Acquisition of the absorption spectrum
The sample analyzed is injected into the measuring cell in order
to obtain the absorption spectrum.
3. Mathematical treatment
The mathematical treatment is applied to obtain the concentration
of the compound.

As some compounds require additional technology, our reference method
can be combined with different elements (probes, sensors...) to offer you
an analysis of up to 8 compounds.

 HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr
Our leading product
TOTAL NITROGEN (TN) ANALYZER

In our case, TN analysis corresponds to the concentration of Organic Nitrogen
(Norg), Nitrite Nitrogen (NO2-N), Nitrate Nitrogen (NO3-N) and Ammonium
Nitrogen (NH4-N). Analyzing total nitrogen is crucial across various sectors
for environmental monitoring, agriculture, wastewater treatment, industry
compliance, and public health. It helps assess water quality, optimize
fertilization practices, gauge treatment efficiency, ensure regulatory
compliance, and prevent health hazards associated with high nitrogen levels
in drinking water. Overall, total nitrogen analysis is essential for environmental
protection, sustainable practices, regulatory adherence, and public health
preservation.


The most powerful and selective solution on the market
Wide dynamic range: 0.1 to 1000 ppm
IN OPTION
Detection limit: 0.1 ppm
High reliability & robustness
Low maintenance and long life-time
No interferences (turbidity, color, salinity,...)
Highly selective
Fast response time: ? 1 min
Why is our method so selective?
Our method allows us to avoid interferents such as turbidity, color or salinity, and to have a good accuracy of the conctration of TN.

 Assessing and understanding the composition,
quality, and safety of gases in various applications

G800 Powerful analytical method
AIR High reliability & robustness
Customized to your requirements
Quality after-sales service
& GAS Wide application ranges
Low maintenance
ANALYZER Long life-time
No interferences (CO, CO2, CH4, H2O…)
Highly selective
Fast response time

Mono or multi-prameter may be required.
PARAMETERS METHODS RANGES ACCURACY DETECTION LIMIT RESPONSE TIME
AMMONIA — NH3 UV FTLS Spectroscopy 0.1 ... 10 ppm*
NITRIC OXIDE — NO UV FTLS Spectroscopy 0.1 ... 1000 ppm*
NITROGEN DIOXIDE — NO2 UV FTLS Spectroscopy 0.1 ... 1000 ppm*
HYDROGEN SULFIDE — H2S UV FTLS Spectroscopy 0.1 ... 100 ppm*
TETRAHYDROTHIOPHENE — THT UV FTLS Spectroscopy 0.1 ... 10 ppm*
MERCAPTANS — R-SH UV FTLS Spectroscopy 0.1 ... 100 ppm*
CARBONYL SULFIDE — COS UV FTLS Spectroscopy 0.1 ... 100 ppm*
CARBON DISULFIDE — CS2 UV FTLS Spectroscopy 0.1 ... 10 ppm*
SULFUR DIOXIDE — SO2 UV FTLS Spectroscopy 0.1 ... 1000 ppm*
SULFUR TRIOXIDE — SO3 IR Nephelometry 0.1 ... 100 ppm* From 0.1 % From 0.1 %
From 10 s
to 2 % to 2 %
to 2 min
TOTAL SULFUR — TS UV FTLS Spectroscopy 0.1 ... 10 ppm* of full scale of full scale
CHLORINE — Cl2 UV FTLS Spectroscopy 0.1 ... 10 ppm*
CHLORINE OXIDE — ClO UV FTLS Spectroscopy 0.1 ... 10 ppm*
CHLORINE DIOXIDE — ClO2 UV FTLS Spectroscopy 0.1 ... 10 ppm*
NITROGEN TRICHLORIDE — NCl3 UV FTLS Spectroscopy 0.1 ... 100 ppm*
OXYGEN — O2 Visible Fluorescence 0.1 ... 21 %*
OZONE — O3 UV FTLS Spectroscopy 0.1 ... 1000 ppm*
CARBON DIOXIDE — CO2 IR Spectroscopy 0.1 ... 100 %*
METHANE — CH4 IR Spectroscopy 0.1 ... 100 %*
VOLATILE ORGANIC COMPOUNDS — VOC PID 0.1 ... 10 ppm*
*The parameter ranges are examples. Customized ranges on request.
= Patented
As some compounds require additional technology, our reference method
can be combined with different other methods to offer you
an analysis of up to 8 compounds.

HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr

 HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr
Our powerful analytical method allows us
to be more selective and to offer a fast response time
UV FTLS SPECTROSCOPY
Thanks to the use of a high-resolution spectrograph combined with innovative mathematical processing,
this technique allows us to achieve greater precision and selectivity.
The principle is based on the absorption of light. After performing the absorption measurement, Fourier Transform and Least Square calculations
are applied through our software to determine the measurement result in real time. As no probe or instrument is in direct contact with the sample,
the maintenance frequency is greatly reduced when the measurement is performed by UV absorption spectroscopy.




IMAGE SENSOR MIRROR



Principle

1. Sampling
The neutral gas is injected into the measuring cell to obtain
the blank. Then, the gas sample is injected into the analyzer.
2. Acquisition of the absorption spectrum
The sample analyzed is injected into the measuring cell in
order to obtain the absorption spectrum.
3. Mathematical treatment
The mathematical treatment FTLS is applied to obtain the
concentration of the compounds of interest.




The absorption spectrum calculation is the difference between incident light (IT0) on zero
and transmitted light (ITS) on the sample.
Absorbance (A) is defined with the formula: A = log IT0/ITS
The concentration of molecules (c) are linear to the absorbance spectrum (A) and the optical path (l)
of the measuring cell.
The absorption coefficient (?) is difined with the formula: ? = A/lc

 HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr
Our leading product
HYDROGEN SULFIDE (H2S) PPB ANALYZER

The analysis of hydrogen sulfide (H2S) in industry is vital for various reasons.
Firstly, it ensures worker safety as H2S is toxic and flammable, commonly found
in industries like oil and gas, refining, and wastewater treatment. Secondly, it
ensures compliance with regulatory standards regarding safety and environmental
protection. Additionally, monitoring H2S levels helps in preserving the
environment by controlling emissions. Moreover, it assists in optimizing industrial
processes by minimizing H2S formation or capturing it effectively. Lastly,
H2S analysis ensures product quality by preventing contamination, particu-
larly in industries like oil refining. Overall, it plays a critical role in safeguarding
workers, meeting regulations, preserving the environment, optimizing processes
, and maintaining product quality.


The most powerful and selective solution on the market
Range: 1 to 1000 ppb
IN OPTION RACK ENCLOSURE
AVAILABLE
Detection limit: 1 ppb
High reliability & robustness
Low maintenance and long life-time
No interferences (CO, CO2, CH4, H2O…)
Highly selective
Fast response time: ? 10 s.
Why is our method so selective?
Our method allows us to avoid interferents such as carbon monoxide (CO), carbon dioxide (CO2), methane (CH4),
humidity (H2O), and unknown gases.


H2S


UV FTLS
SPECTROSCOPY
THT

Our method allows to discriminate the
known compounds without interference
For example, from the unknown compound.
a gas sample with C2H5SH
4 compounds known
and 1 compound
unknown

UV
CH3SH
SPECTROSCOPY


? The other methods obtain a sum of the
compounds spectrum.

 Technical specifications
SAMPLE CONDITION
Flow 0...2 L/min
Pressure < 2 bars
Temperature 5 ... 35°C
CONTROLLER
Display 8.5’’ TFT colour screen 16/9 (LED backlight)
Resolution 800 x 480 px
Touch screen Glass to glass
Memory 16 GB SD card
Data transfer USB type A
Operating temperature 5 ... 45°C
Operating humidity < 90 % RH
COMMUNICATION OUTPUT
Analog 4-20 mA isolated (Active or Passive) / 500 ? max
Relay Programmable limit or fault alarms / 5A (NO) 3A (NC) @ 277 VAC
Digital RS485 / Modbus (Slave or Master) - Show value, calibration status, fault status...
POWER SUPPLY
Voltage 100 ... 240 VAC (50 - 60 Hz) or 24 VDC
Consumption < 20 W (60 W max.)
2 Our analyzers come with a 2-year
years parts and labor warranty,
subject to normal use.
WARRANTY

STANDARD ENCLOSURE
Type Wall mounted / On a table / Portable (optional handles)
Material SS316L
Dimensions (HxWxD) 3 SIZES (Depends on the parameter and the method of measurement)
—
430x340x195 mm
570x340x195 mm
TOUCH SCREEN
900x340x195 mm GLASS TO GLASS 8.5“
adapted to several
Weight ± 20 kg environment
even aggressive ones
Protection class IP54 / IP65 in option
Area classification Safe


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HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr

 HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr
RACK ENCLOSURE Only for gas analysis
Type Rack 19’’
Material SS316L
Dimensions (HxWxD) 220.5x431x571.5 mm
Weight ± 20 kg
TOUCH SCREEN
Protection class IP30 GLASS TO GLASS 8.5“
adapted to several
Area classification Safe environment
even aggressive ones



EXPLOSION PROOF ENCLOSURE
Type Wall mounted - Explosion proof - ATEX
Material Copper Free Aluminium Alloy (Cu<0.1%)
Dimensions (HxWxD) 2 SIZES (Depends on the parameter and the method of measurement)
—
413x488x320 mm
640x370x278 mm
INTEGRATED SCREEN 8.5’’
Weight ± 50 kg CONTROLLABLE WITH
A MOUSE SUPPLIED
Protection class IP66 WITH THE ANALYZER
adapted to several
Area classification Zone 1 or 2 environment
even aggressive ones




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PRESSURISED ENCLOSURE
Type Wall mounted - Pressurised - ATEX
Material SS316L
Dimensions (HxWxD) 2 SIZES (Depends on the parameter and the method of measurement)
—
570x430x205 mm
900x430x205 mm
TOUCH SCREEN
GLASS TO GLASS 8.5“
Weight ± 40 kg adapted to several
environment
Protection class IP65 even aggressive ones
Area classification Zone 1 or 2

 We are able to offer a detailed analysis
and a fitted and customized solution
Our skills
‘‘ We attach particular importance
in research and development.
Our team of engineers works every time
to offer you the best solution.


OPTIC MECHANICS FLUIDIC CHEMISTRY THERMIC ELECTRONICS MATHEMATICS SOFTWARE

Our multiple skills allow us to have a precise view of any type of situation.
We manufacture our own electronics as well as optical equipment such as
spectrograph and UV lamps. We have also developed our own software integrated
to our analyzer wich allows us to have the measurement in real time.

Our footprints






They trust in us






HEMERA ANALYZERS — LIQUID & GAS ANALYSIS
www.hemera.fr

 z
Online liquid & gas
analyzers




DO NOT HESITATE
TO CONTACT US
THROUGH OUR SALES
REPRESENTATIVE
Hemera Analyzers
www.hemera.fr
I N
sales@hemera.fr • +33 6 77 87 63 00 • +33 4 76 63 27 52 E F
D R
A A
M N
C
E
25 avenue du Granier - 38240 Meylan - FRANCE