CONTACT INFORMATION:FKT 2DP1A-C High-Speed Meter
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The FKT 2DP1A-C is portable, self-contained and micro-processor based. This meter allows for the simultaneous measurement and display of two independent differential pressures as well as concurrent measurement and display of atmospheric pressure, target gas temperature, relative humidity (RH) and density. Density is determined from the temperature and humidity readings. Accurate measurements can also be done on gases other than air by the user modifying the molecular weight of the target gas. In conjunction with a Pitot Static Tube, the FKT 2DP1A-C can measure velocity accounting for true gas density, high speed compressibility effects and user-selectable ratios of specific heats for gases other than air. The instrument also interfaces with a PC using the FlowScan software suite allowing data logging and flow survey functions and can be configured as a component of a data acquisition system.
Features
- Simultaneous measurement and display of
- Up to two independent differential pressures or velocities. This allows excellent flexibility in that multiple pressures/velocities may be measured simultaneously, or the transducer yielding optimum resolution for a particular application may be selected.
- Temperature.
- Relative Humidity.
- Atmospheric pressure (or absolute pressure).
- Real time display of true density including effects of temperature and water vapor.
- Excellent accuracy.
- Extreme ease of use. The instrument was specifically designed to avoid menu driven operation, as this usually proves cumbersome and requires continual reference to the manual. Almost all required information is displayed concurrently through the use of a large 4 line LCD display.
- Pressures displayed in four user selectable units.
- Velocity is displayed in three user selectable units and with compressibility, temperature and humidity corrections. In conjunction with a Pitot Static tube (or multiple tubes), up to two velocities based on true gas density can be displayed. Even the ratio of specific heats for the target gas is user selectable. The probe coefficient can also be modified for non-unity probes.
- Variable damping for measurements involving pulsating flows.
- Automatic auto-zeroing without disconnecting from the pressure source (through the use of internal solenoids) every ten minutes reduces zero-drift errors and simplifies operation. The auto-zero function can also be implemented by depressing the zero button. This is particularly useful when measuring in conditions with large ambient temperature fluctuations.
- Over-pressure protection: If the applied pressure exceeds the transducer rating, the instrument will automatically enter the auto-zero cycle which will equalize pressure across the differential transducers reducing the possibility of damaging the transducer.
- Data logging and flow surveying with optional FlowScan software suite.
- The absolute pressure transducer, if left unconnected, displays local atmospheric pressure, or if connected to a duct system the duct absolute pressure, which is then used for density calculation.
- The detachable probe of the instrument allows for the measurement of test point temperature and humidity.
Specifications
Enclosure |
UV protected, water resistant and virtually unbreakable |
Dimensions |
Length: 8.7 in (220.9 mm)
Width: 7.5 in (190.5 mm) Height: 3.9 in ( 99.1 mm) |
Weight |
2.93 lb (1.33 kg) |
Working Temperatures |
Operating: 32°F to 158°F (0°C to 60°C)
Storage: 14°F to 140°F (-10°C to 60°C) |
Power Supply |
8 x 1.5V AA Alkaline batteries, field replaceable
(batteries not included)
100V-240V AC auto-switching power supply (included) |
Battery life |
30hrs approx. |
Pressure Connectors |
1/8 in barb, 0.41 in (10.45 mm) long by 0.19 in (4.9 mm) diameter.
Accepts 1/8 in ID rubber tubing |
Differential pressure |
For available pressure ranges see ordering information
Up to two independent differential pressure transducers installed on each instrument Zero offset and zero temperature shift: eliminated through auto-zero Accuracy at 25°C: Typically within ±0.1% of Full Scale (±0.22% max). Media: Clean, dry, non-corrosive gases User recalibration procedure available |
Velocity |
For available pressure ranges see ordering information
Corrected for gas density, humidity and compressibility effects Using a Velocity probe with user selectable flow coefficient User selectable gas molecular weight User selectable ratio of specific heats for the target gas |
Absolute pressure |
Range: 2.2 -16.7 psi (15 – 115 kPa).
Accuracy (0 to 85°C): ±0.5% of Full Scale typical, includes effects of linearity, temperature and pressure hysteresis, zero temperature shift and span temperature shift. Media: Clean, dry, non-corrosive gases |
Damping |
User selectable from 1 to 64 data averages available. |
Temperature
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K-Type flexible thermocouple with a range of -100°F to 900°F (-73°C to 482°C) The instrument can work with other K-type thermocouples and can display temperatures from -328°F to 1430°F (-200°C to 777°C) Accuracy: ±1.8°F (±1°C) Quick disconnect miniature size connector Cable length: 60 in (150cm) |
Relative Humidity
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Range: 0% to 99% Relative Humidity, non-condensing
Accuracy: ±2% typical at 25°C, non-condensing Storage: 0 to 90% Relative Humidity, non-condensing Response time (1/e): 15s in slow moving air at 25°C Cable length: 60 in (150 cm) Working temperature: -40°F to 185°F (-40°C to 85°C) Probe size: Cylinder 4 in (100 mm) long with a diameter of 0.5 in (13 mm). |
Display |
4-line large character variable contrast alphanumeric LCD
Viewing area: 4.02 in (102 mm) by 1.63 in (41.5 mm) Pressure units: kPa, inH2O, mmHg and psi Velocity units: m/s, ft/s and ft/min Temperature units: °C and °F Density units: kg/m3 and lb/ft3 Humidity units: percent |
Output |
RS232 serial port interface, 9 pin connector. USB adapter available. |
Ordering Information & Accessories
All prices are given in USD and are subject to change without notice. Please contact us about applicable discounts.
Specifications can be customized. Please contact us for details.
Meter Part Number |
Description |
Price |
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FKT 2DP1A-C-R-R Where R is the pressure range from the table below.
Order Example: FKT 2DP1A-C-1-12 is an instrument with a ±1 and ±12inH2O transducers. |
Full system which contains
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$1795.00 two transducers $1595.00 one transducer |
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Velocity values are for standard air conditions and limited to subsonic flow. Other ranges available |
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Accessory |
Description |
Price |
| FlowScan Software Suite | Software to read meter values into a computer | $295.00 |
| USBA | USB to serial adapter for computers with no serial port. Length: 1ft (30cm). Windows 98/2000/ME/XP. | $25.00 |
| CABLE6 | Serial cable replacement - 6ft (1.8m) | $10.00 |
| CABLE50 | 50ft (15.2m) serial cable. | $30.00 |
| Probes | Needed if you are measuring velocity or flow | Link |
| Filter Kit | Set of two 30-micron filters with replaceable elements. Includes a pack of 10 replacement filter elements. Useful for protecting the instrument in dirty environments. | $50.00 |
WPA |
Replacement auto-switching power supply (100V-240V AC 50-60Hz) US plug included |
$40.00 |
| Plug-EUR | European plug for power adapter | $7.00 |
| Plug-UK | UK plug for power adapter | $7.00 |
| Plug-AUST | Australian plug for power adapter. | $7.00 |