Collection: Gas Analysis

The HHAQ-104 is designed to measure Oxygen (O2) concentration, pressure, air temperature and relative humidity with visible and audible alarms. This O2 monitor is an ideal instrument for indoor air quality (IAQ) diagnosis and HVAC system performance verification. The HHAQ-104 features a remote probe and detachable soft in/out tube to reach air-ducts or where access with the probe is not possible.

SPECIFICATIONS

O2:

• Measurement Range: 5.0 to 30.0%
• Accuracy: ±1%
• Resolution: 0.1%

Temperature:

• Range: -10 to 60°C
• Accuracy: ±0.6°C 
• Resolution: 1°C 

Relative Humidity:

• Range: 0.1 to 99% RH
• Accuracy: ±3% RH [at 25°, from 10 to 90% RH], ±5% RH above and belo

• Pressure Range: 30 to 110 kPa
• Memory Capacity: 32,000 readings
• Storage Temperature: -40 to 70°C
• Interface: USB
• Response Time: @ 2 minutes to 100%

Dimensions:

• Meter: 160 H x 60 W x 40 D mm 
• Probe: 142 H x 32 W x 34 D mm 
• Weight: 550 g

The HHAQ-105 is designed for long battery life and has large buttons for ease of use with gloves, this portable carbon monoxide meter works well as a personal safety alarm unit in hazardous environments, or wherever carbon monoxide is produced, stored, generated and used.

The large LCD readout gives a quick overview of the current CO level and the alarm calls for prompt attention when the short-term exposure safety limit is exceeded.

The meter uses a high-accuracy electrochemical cell for detection and is easily calibrated at both 0 ppm and 500 ppm points with reference gas.

SPECIFICATIONS

• CO Range: 0 to 999 ppm
• Resolution: 1 ppm
• Accuracy: ±20% at 0 to 100 ppm ±15% at 100 to 500 ppm (both at 20 ±5°C, 50 ±20 RH)
• Battery: Three “AAA” alkaline batteries; battery life is 250 hours when the backlight is off and 35 hours when the backlight is on

The OMEGA GAB-1700 oxygen analyzer has been specifically designed to meet the demanding needs of field and laboratory analysts, light industrial users and others who require fast, accurate and reliable analysis of common gas mixtures. This compact, portable and easy to use instrument is based upon a non-depleting, component specific measurement technique (magnetodynamic paramagnetic) for long life and minimal running costs, avoiding the problems associated with electrochemical or other less robust methods of analysis.

Specifications

• Gases Measured Oxygen (O2) Sensors Oxygen
• Technology: Paramagnetic
• Variant: Industrial
• Full Scale Range (FSR): 0 to 100% O2
• Minimum Output Range: 0 to 1% O2
• Cell Construction: 316 stainless steel
• Decimal Places: 1
• Performance

Accuracy:

• General Use: ±0.1% O2
• Stable Environment: ±0.1% O2

• Zero Drift, Per Week: ±0.2% O2
• Response Time (T90): <15 seconds
• Tilt Effect, at 15° from Calibration: ±0.15% O2
• Pressure Effect: Directly proportional to ambient barometric pressure
• Flow Variation Effect: ±0.1% O2 for a ±0.5 psig (3.5kPa) change
• Operating Temperature: -10 to 50°C (14 to 122°F)

Temperature Coefficient:

• Zero: ±0.2% O2 per 10°C (18°F)
• Span: ±0.3% O2 per 10°C (18°F)

Sample

• Sample Gas: Clean, dry, non-flammable and non-toxic gases only
• Note: Though samples containing >5% CO2 are toxic they can be analyzed if suitable precautions are taken.
• Flow Control: To maximize measurement stability, unpumped units are supplied with an automatic flow control device (AFCD); over the specified inlet pressure range this controls sample flow rate to approximately 1.5 to 6 liters (0.05 to 0.2 cubic feet) per minute
• Sample Inlet Connection: 5 mm (0.19″) OD stub with “quickconnect” barb fitting for 6.3 mm (¼”) ID tube or adaptor to 1/8 NPT fitting option
• Sample Outlet Connection: 5 mm (0.19″) OD stub (sample and bypass)

Inlet Pressure:

• Without Pump: 7kPa to 70kPa (1 to 10 psig)
• With Internal Pump (Optional): -7kPa to 3.5kPa (-1 to 0.5 psig)
• Sample Filter: Replaceable 0.6 µm glass fiber particulate filter
• Response Time: All at 70kPa (10 psig)
• Flow Effect: AFCD version, within specified sample gas supply range
• Dimensions: 150 W x 260 D x 300 mm H (6 x 10.5 x 12″)
• Weight: 2.6 to 3.9 kg (5.7 to 8.6 lb), depending on configuration

The AQM-101 is designed to measure and record Formaldehyde (HCHO) concentration, air temperature and relative humidity with visible and audible alarms. This HCHO monitor is an ideal instrument for indoor air quality (IAQ) monitoring and local exhaust system (LEV) performance verification in areas where Formaldehyde may be present.

FORMALDEHYDE (HCHO) is a gaseous component of the earth’s atmosphere. The concentration of HCHO in natural ambient air is about 0.03 ppm.

The UK Control of Substances Hazardous to Health (COSHH) Regulations 2002 impose a legal requirement for the workplace control of exposure to Formaldehyde, by reference to Table 1 of EH40/2005 Workplace Exposure Limits (WELs).

The short-term exposure limit for Formaldehyde as listed in EH40^* is 2 ppm or 2.5 mg/m³ (15 minute reference period). 

SPECIFICATIONS

HCHO –

• Measurement Range: 0.00 to 5.00 ppm @25°C, ambient pressure
• Accuracy (0.00 to 5.00 ppm): ±5%, + 0.03 ppm
• Resolution: 0.01 ppm

Temperature –

• Range: 0 to 50°C (32 to 122°F)
• Accuracy: ±0.1°C (2°F) [0 to 50°C (32 to 122°F)]
• Resolution: 1°C (1°F)

Relative Humidity –

• Range: 10 to 80% RH
• Accuracy: ±3% RH [at 25°C, from 10 to 80 RH], ±5% RH below 10%

• Memory Capacity: 32,000 readings
• Storage Temperature: -40 to 70°C
• Interface: USB
• Response Time: Less than 30 seconds (T90)
• Dimensions: 110 H x 108 W x 28 mm D 
• Weight: 165 g

The AQM-102 is designed to measure CO2 concentration, air temperature and relative humidity with visible and audible alarms. This CO2 monitor is an ideal instrument for indoor air quality (IAQ) diagnosis and local exhaust ventilation (LEV) system performance verification.

Carbon dioxide (CO2) is a gaseous component of the earth’s atmosphere. The concentration of CO2 in natural ambient air is about 0.04% or 400 ppm. With each breath, humans convert oxygen (O2) into carbon dioxide (CO2). Although carbon dioxide is invisible and odourless, increased CO2 levels can cause headaches, drowsiness and a loss of the ability to concentrate or worse.

The Control of Substances Hazardous to Health (COSHH) Regulations 2002 impose a legal requirement for the workplace control of exposure to Carbon dioxide, by reference to Table 1 of EH40/2005 Workplace Exposure Limits.

The Long-term exposure limit for Carbon dioxide as listed in EH40 is 5,000 ppm or 9,150 mg/m³ (8 hour TWA reference period).

SPECIFICATIONS

CO2 –

• Measurement Range: 0 to 9999 ppm
• Accuracy (400 to 5000 ppm): ±30 ppm, + 3% of rdg
• Resolution: 1 ppm

Temperature –

• Range: 0 to 50°C (32 to 122°F)
• Accuracy: ±0.1°C (2°F) [0 to 50°C (32 to 122°F)]
• Resolution: 0.1°C (0.1°F) 

Relative Humidity –

• Range: 0.0 to 80% RH
• Accuracy: ±3% RH [at 25°C, from 10 to 80 RH], ±5% RH below 10%

• Memory Capacity: 32,000 readings
• Storage Temperature: -40 to 70°C 
• Interface: USB
• Dimensions: 110 H x 108 W x 28 mm D 
• Weight: 165 g

The AQM-103 is designed to measure Carbon monoxide CO concentration and air temperature with visible and audible alarms. This CO monitor is an ideal instrument for indoor air quality (IAQ) diagnosis and local exhaust ventilation (LEV) system performance verification.

CO is a common by-product of the combustion of fossil fuels. Carbon monoxide or CO is a colourless, odourless and tasteless gas. Due to this fact, it is very hard to detect the presence of CO in your environment. It is, however, imperative that the CO levels are carefully monitored. Even at relatively low levels, CO is poisonous because it rapidly accumulates in the blood thereby depleting its ability to carry oxygen. Extreme cases of CO poisoning result in death.

The Control of Substances Hazardous to Health (COSHH) Regulations 2002 impose a legal requirement for the workplace control of exposure to Carbon monoxide, by reference to Table 1 of EH40/2005 Workplace Exposure Limits.

The Long-term exposure limit for Carbon monoxide as listed in EH40 is 30 ppm or 35 mg/m³ (8 hour TWA reference period). The short-term exposure limit (15 minute reference period) is listed in EH40 as 200 ppm

SPECIFICATIONS

Carbon Monoxide

• Measurement Range: 0 to 999 ppm
• Accuracy: ±5% of rdg or ±10 ppm whichever is greater
• Resolution: 1 ppm

Temperature

• Range: 0 to 50°C (32 to 122°F)
• Accuracy: ±0.6°C (1.2°F)
• Resolution: 0.1°C (0.1°F)

Memory Capacity: 32000 readings

• Storage Temperature: -40 to 70°C
• Interface: USB
• Dimensions: 110 H x 108 W x 28 mm D 
• Weight: 165 g

Omega’s HHAQ-106 hand-held psychrometer with enthalpy measures ambient temperature, relative humidity (RH), dew point and wet bulb temperatures, absolute humidity (mixing ratio) and enthalpy of vaporization. These measurements are typically made by three groups of users: Water damage restoration contractors, HVAC/R system installers and technicians and professionals charged with monitoring and maintaining the environment of facilities such as office buildings, greenhouses, food and equipment storage facilities, wineries, freezers, shipping containers, computer rooms, labs, libraries, museums and saunas.

The dew point is the temperature below which the water vapour in a volume of air at a given constant barometric pressure will condense into liquid water at the same rate at which it evaporates. Condensed water is called dew when it forms on a solid surface. Another way to think of dew point is as an air saturation temperature associated with relative humidity (RH). A high RH value indicates that the dew point is close to the current ambient air temperature. At 100% RH, the dew point temperature is equal to the ambient temperature because the air is completely saturated with water.

The wet bulb temperature is the temperature that a volume of air would have if it were cooled to saturation (100% RH) by the evaporation of water into it, with the latent heat coming from the volume of air. It is the lowest temperature that can be reached under current ambient conditions by the evaporation of water only. The wet bulb temperature is the temperature you feel when your skin is wet and exposed to moving air as opposed to the actual air temperature—the dry bulb temperature.

An environment’s absolute humidity level (or mixing ratio) can be measured and expressed in units of grains per pound (GPP) or g/kg. GPP is a more useful moisture metric than RH to water damage remediators. Using RH alone, a remediator might unknowingly introduce moist air—with a low RH but a high GPP—during a job’s drying phase.

The sixth environmental parameter that the HHAQ-106 can measure is enthalpy. Enthalpy is a measure of the amount of energy needed to change the state of a substance from a solid to a liquid or from a liquid to a gas. The most common application for the HHAQ-106 enthalpy-calculating algorithm is measuring the enthalpy of vaporization of air in an HVAC/R system duct.

SPECIFICATIONS

• Ambient Temperature Measurement
• Range: -20 to 70°C 
• Ambient Temperature Measurement
• Accuracy: 0.5°C from -10 to 40°C; 1°C elsewhere in range
• Temperature Measurement
• Resolution: 0.1°
• RH Measurement Range: 0 to 100%
• RH Measurement Accuracy: ±3% from 20 to 80% RH; ±3.5% elsewhere
• RH Measurement Resolution: 0.1%
• Probe Length: 150 mm 
• Display Size: 38 mm diagonal
• Current Consumption: <10 mA
• Battery Life: 1000 hours (typical)
• Dimensions: 209 L x 47 W x 47 mm D 
• Weight (Without Battery): 63 g
• Power Source: Three “AA” batteries (included)

The HHAQ-108 is ideal for measuring levels of gaseous formaldehyde (HCHO) as part of a workplace indoor air quality assessment to determine the need for, or effectiveness of, a local exhaust ventilation (LEV) system.

The HHAQ-108 features an electrochemical sensor which measures real-time formaldehyde gas concentration. It also tracks, calculates and displays three cumulative formaldehyde gas metrics: 8-hour TWA (time-weighted average), 1-hour average, and 15-minute STEL (short-term exposure limit).

The UK Control of Substances Hazardous to Health (COSHH) Regulations 2002 impose a legal requirement for the workplace control of exposure to Formaldehyde, by reference to Table 1 of EH40/2005 Workplace Exposure Limits (WELs).

The STEL for Formaldehyde as listed in EH40^* is 2 ppm or 2.5 mg/m³. 

The device is also equipped with a tripod mount fitting for hands free monitoring.

Specifications

• Formaldehyde Range/Resolution: 0 to 5 ppm/0.01 ppm
• Formaldehyde Accuracy: ±(5% + 0.03 ppm)^*
• Formaldehyde Sensor Type Warm-up Time: Electrochemical/1 to 15 minutes
• Temperature Range: 0 to 50°C (0 to 122°F)
• Temperature Accuracy/Resolution: ±1°C (1.8°F)/0.1°
• RH Range/Accuracy: 10 to 90% RH/±5% of reading, typical
• Display Type/Size: Dual readout LCD/51 mm diagonal
• Auto Power-Off Trigger: 15 minutes of front-panel inactivity (can be disabled)
• Operating Temperature: 0 to 50°C @ 0 to 95% RH, non-condensing
• Dimensions: 210 L x 60 H x 25 mm D 
• Weight: 204 g (with battery)
• Power Source: 4 AAA batteries (included) or optional AC adaptor

^* Legal requirements and exposure limits will vary by location. Also Meets U.S. National Institute for Occupational Safety and Health’s (NIOSH’s) acceptance criteria.

Ultrasonic sound (20 to 100 kHz) is generated by turbulence created by air or a gas forced through a small orifice. Ultrasonic sound is very directional in nature and can be used to pinpoint the exact location of the leak point. Leaking air or gas is generally considered to be viscous flow and as the flow velocity increases, the frequency of the ultrasonic sound emitted will become higher. The HHLT-1R amplifies and converts these sounds to frequencies and levels that the human ear can hear.

The HHLT-1T transmitter can supply ultrasonic signals for locations where the gas/air leak does not have sufficient pressure to create an ultrasonic sound. This transmitter will allow the ultrasonic detection of cracks and openings.

Detection Principle

When a gas passes through a restricted orifice under pressure, it’s going from a pressurized laminar flow to low pressure turbulent flow. The turbulence generates a broad spectrum of sound called “white noise”. There are ultrasonic components in this white noise. Since the ultrasound will be loudest by the leak site, the detection of these signals is usually quite simple.

SPECIFICATIONS HHLT-1R Receiver

•     Frequency Response: 36 to 44 kHz (centred at 40 kHz)
•     Indicator: LED and earphone
•     Operating Temperature: 0 to 40°C
•     Operating Humidity: <80% RH
•     Storage Temperature: -10 to 40°C 
•     Power Supply: 9V alkaline battery (included)
•     Weight: 125.5 g
•     Dimensions: 150 L x 90 W x 50 mm D 

HHLT-1T Transmitter

•     Frequency: 40 kHz
•     Indicator: LED
•     Operating Temperature: 0 to 40°C
•     Operating Humidity: <80% RH
•     Storage Temperature: -10 to 40°C
•     Power Supply: 9V alkaline battery (included)
•     Weight: 93.5 g 
•     Dimensions: 120 L x 60 W x 38 mm D

The HHLT-2 is designed with a long lasting solid electrolyte semiconductor sensor can detect leaks of all commonly used halogenated (chlorine or fluorine based) refrigerant gases. They include HFCs (hydrofluorocarbons), CFCs (chlorofluorocarbons) and HCFCs (hydrochlorofluorocarbons).

Specifically, the instrument can detect:

• Widely used HFC refrigerants such as R-134a, R-410a, R-404a, R-407c and R-507
• CFC refrigerants such as CFC-12 (R-12)—commonly known as Freon
• HCFC replacement blends, such as R-22, approved by the U.S. EPA for complying with the stratospheric ozone protection provisions of the Clean Air Act
• R-1234yf, the newly approved hydrofluoroolefin (HFO) refrigerant with a global warming potential 335 times less than that of R-134a

Electronic Sensing is the Most Widely Used, Sensitive and Accurate Method of Refrigerant Leak Detection.

Why Look For Refrigerant Leaks?

There are three reasons to detect and repair leaks of refrigerant gases from stationary and mobile air conditioners, refrigeration systems and heat pumps:

1. Leaks allow air and moisture to enter an A/C system or chiller. Moisture can react with refrigerant to form corrosive acids and sludge that can damage a compressor, plug up orifice tubes, and/or eat pinholes in evaporators and condensers.

2. Refrigerant is expensive. It may seem cheaper to keep recharging your system with refrigerant than fix a leak—but it isn’t in the long run. And A/C systems and chillers that aren’t fully charged won’t cool efficiently and thus waste money (electricity-powered systems) or fuel (vehicle systems).

3. Most refrigerants deplete the ozone layer that blocks the sun’s harmful ultraviolet radiation.