IsoFlow - Model 202 PRO -Isokinetic Flow Calculator

• Three high accuracy sensors for the detection of differential, static and absolute pressure
• Double sensor dedicated to the detection of stack and auxiliary device temperature
• New high-resolution backlit graphic LCD display
• Determination of the duct measuring grid and traverse points
• Measurement and calculation of isokinetic conditions
• Dedicated menus for EN-ISO 16911:2013, EN-13284, EPA 201A, ISO 9098, EPA-2H, EPA1, EPA 2H, EPA 4, EN-23210
• EPA1 and ISO 16911 regulations for automatic SWIRL calculation
• Direct interface to AirCube HE and AirCube Com2 samplers for isokinetic real time sampling
• Validation of calibration from reference accredited laboratory
• Moisture content in stack gases using the psychrometric method (EPA 4) with WaterCheck system (optional)
• Automatic swirl calculation using a three-axis transducer (optional) with real-time angle and flow calculation, without manual data entry
• Automatic calculation of the swirl factor in duct inner walls (EPA 2H)

EPA 4 method
This method is dedicated to the evaluation of moisture content into stacks, for a correct evaluation of the gas density value. Unlike EN-14790 legislation, EPA method provides for a quick humidity check, defined as approximation method, so as to allow an approximate value to be entered before sampling. This is because generally the measurement of the moisture content in stack gases sampling, requires a long detection time. One of the allowed tests in the approximation method provides for the measurement with psychrometric or double bulb (dry/wet) system. To this purpose, the percent moisture content into the stack can be detected by the new Isoflow 202-Pro through automatic psychrometric measurement. AMS provides a device to be connected to Isoflow 202-Pro, through Water Check probe, to be used in line with the heated probe (without filter box). The device is able to detect and calculate the moisture content in a maximum time of 5 minutes. The relative humidity value can be displayed in real time and water concentration is automatically calculated. The Water Check kit is supplied separately from Isoflow 202-Pro isokinetic calculator.??

Swirl control with reference angle calculation (SWIRL method).
This measurement is used when unstable flow conditions occur inside the duct, in the different measurement points, causing the swirling. In order to obtain the most reliable result, EN-16911 standard describes how to calculate a correction factor in the measurement in the presence of swirls. In concrete terms, the velocity measurement probe is made to rotate trying to reach zero point stability and calculating the displacement angle. This procedure is provided for and described in more detail, in method EPA 1. In order to correctly carry out this measurement, a triaxial sensor was developed by AMS to be placed on the measuring probe and to be connected to Isoflow 202-Pro. The program allows air velocity, displacement angle and relevant correction factor to be simultaneously detected in real time. All without manually entering additional data. The angle calculation set must be purchased separately. The calculation program is a lready insta lled on Isoflow 202-Pro calculator and the user will simply have to connect the sensor through the USB port for automatic activation.

• Measuring range see technical sheet at next table
• Ambient operating range -10/+50°C
• Pressure detection: three sensors (Differential, Static, Absolute)
• Dimensions: 20x10x6 cm
• Weight: 700 grams
• Data output: bi-directional RS232 and USB port
• USB port for transducer connection for angle measurement
• Power supply: 12Vcc NiMH rechargeable batteries without

Isoflow 202-Pro calculator is supplied with: battery power supply/ charger, user manual in It/En language, connection pipes and cable for temperature sensor. A waterproof anti-shock carrying case and portable printer are optionally available.

• Detected parameters:
• Stack temperature (°C)
• Differential pressure (mm/H2O)
• Static pressure (mm/H2O)
• Absolute barometric pressure (mbar)
• Relative humidity (RH% - Psychrometric with sensor installed)
• Power supply: 
• Internal batteries NiMH
• External power supply through DC source (16<V<24) 1A
• Avaliable interfaces: 
• RS232C 9600/38400 baud, 1 stop, no parity
• USB host
• Environmental operating range: 
• Temperature -10°C % +50°C
• Relative humidity 95% non-condensing
• Weight: 700 g
• Dimension: 20 x 10 x 6 cm
• Thermocouple input measuring range: Depending on probe type and instr. setting (K, J, S)
• Cold junction measuring range: -10..+85°C Resolution 0,05°C - Accuracy +/- 0,5°C
• Barometric pressure sensor: 
• Measuring range (FS): 800..1100 mbar
• Resolution: 0,05 mbar
• Accuracy: +/- 1 mbar
• Static pressure sensor: 
• Measuring range (FS): +/- 1000 nn/H2O
• Resolution: 0,1 mm/H2O
• Accuracy:
• 0.9% on scale (FS) 0..100 mmH2O with reading less than 100 mmH2O
• 0.8% on scale (FS) 0..300 mmH2O with reading less than 300 mmH2O
• 0.8% on scale (FS) 0..700 mmH2O with reading less than 700mmH2O
• Differential pressure sensor: 
• Measuring range (FS): 0-100 mm/H2O
• Resolution: 0,01 mm/H2O
• Accuracy:
• 1% on scale (FS) 0..20 mmH2O
• 0.5% on scale (FS) 0..50 mmH2O
• 0.3% on scale (FS) 0..100 mmH2O

Article: Code

• IsoFlow 202-Pro isokinetic calculator: 600/IF202-PRO
• Carrying case for IsoFlow 202-Pro and accessories: 600/PPC1500BNF-IF
• Portable printer for IsoFlow 202-Pro: 600/SPRINTB22
• Data transfer and processing software for IF202-Pro: 600/SDC2000K
• Replacement cable 1500mm for temperature probe: 600/RTC0020
• Replacement cable 5 m for temperature probe: 600/RTC0025
• Replacement cable 10 m for temperature probe: 600/RTC0010
• Silicon tube 4x8 for IsoFlow 202-Pro 1m: 600/TS00048
• 10 pcs thermal paper pack for printer: 600/RCT57X50
• WaterCheck™ device for RH % calculation with accessories: 600/WTC0001K
• Transducer and accessories kit for SWIRL calculation: 600/SWR001K
• Pitot tube S 750mm: 600/SD00102*
• Pitot tube S 1500mm: 600/SD00103*
• Pitot tube S 2000mm: 600/SD00104*
• Reference certificate for thermocouple K 6 Points range 0-1063°C: DO/LAT-K-6
• Reference certificate for Pitot tube S, range 1-25 m/s (5 point increase): DO/LAT-PITOT-25
• Reference certificate for Pitot tube S, range 25-60 m/s (5 point increase): DO/LAT-PITOT-60