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The unique FMA-900 air velocity transducer utilizes both a velocity sensor and a temperature sensor to accurately measure the air velocity (in SFPM, standard feet per minute). The built-in temperature sensor automatically corrects the flow rate for temperature variations. Both sensors are rugged glass-coated platinum resistance detectors (RTDs). The circuit heats the velocity sensor to a constant temperature differential above ambient temperature and measures the cooling effect of the air flow. This design provides excellent low velocity sensitivity and high accuracy. The FMA-900 also features negligible pressure drop. |
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To obtain mass flowrate in SCFM (standard cubic feet/minute), the SFPM velocity indicated by the FMA-900 is multiplied by the cross-sectional area of the pipe or duct in square feet. A traverse across the pipe or duct can be performed to determine the mounting location for average velocity indication. The FMA-900 can be mounted in pipes (down to 1" size) with the use of NEWPORT ® SSLK compression fittings (SSLK-14-14). Teflon ® ferrules are required. (model T-FER- 14). Each unit is individually calibrated in NEWPORT ’s NIST-traceable wind tunnel. Suggested power supply; FPW-15, ($75)
The New Remote Electronics Option (-R) comes with a 12 foot cable from the sensor to a quick disconnect connector and then to the mating connector with two feet of wire which connects directly into the electronics box. The electronics box has another connector on the opposite side with a 15 foot cable with strip leads. A total of 30 feet of cable. Designed for tight spaces.
SPECIFICATIONS
Accuracy: 1.5% FS @ room temp. Add ±0.5% of reading from 0 to 50ºC (32ºF to 122ºF); add 1% FS below 1000 SFPM
Repeatability: ±0.2% FS
Initial Stabilization Time in Flow: 40 sec
Response Time: 400 msec to within 63% of final value at room temperature
Probe: Aluminum oxide ceramic glass coating, epoxy; probe body 304 SS
Probe Temperature: -40 to 121ºC (-40 to 250ºF)
Probe Pressure: 150 PSIG max.
Electronics Temperature: 0 to 50°C (32 to 122°F), operating; 0 to 70°C (32 to 158°F), storage
Operating Relative Humidity: less than 80% RH, without condensation Ambient Temp Compensation: about 5 min for 11°C (20°F) temp change
Outputs: 0 to 5 Vdc or 4 to 20 mA
Voltage Load Resistance: 250 ohms minimum
Current Loop Resistance: 0 ohms min. to 400 ohms max.; 4 wire
Power: 15 to 24 Vdc, 300 mA (0 to 100 and 0 to 200 SFPM only); 15 to 18 Vdc, 300 mA (all other ranges)
Accessories: Mating connector pre-wired to 15' shielded cable (with built-in ferrite core) included
DIMENSIONS
Case: 89 H x 51 W x 31.8 mm D (3.5" H x 2" W x 1.25" D)
Probe: 6.35 mm (0.250") O.D., 330 mm (13") length, optional 3.75" available (-S)
Weight: 0.16 kg (0.350 lb).
TO ORDER (Specify Model No.) Prices shown in U.S. Dollars
Model No. 0-5 Vdc Output |
Price |
Model No. 4-20 mA Output |
Range |
Price |
|
FMA-900-V |
$822 |
FMA-900-I |
0-100 SFPM |
$882 |
|
FMA-901-V |
$822 |
FMA-901-I |
0-200 SFPM |
$882 |
|
FMA-902-V |
$822 |
FMA-902-I |
0-500 SFPM |
$882 |
|
FMA-903-V |
$822 |
FMA-903-I |
0-1000 SFPM |
$882 |
|
FMA-904-V |
$822 |
FMA-904-I |
0-2000 SFPM |
$882 |
|
FMA-905-V |
$822 |
FMA-905-I |
0-5000 SFPM |
$882 |
|
FMA-906-V |
$822 |
FMA-906-I |
0-10,000 SFPM |
$882 |
Model No. 0-5 Vdc Output with Remote Electronics |
Price |
Model No. 4-20 mA Output with Remote Electronics |
Range |
Price |
|
FMA-900-V-R |
$852 |
FMA-900-I-R |
0-100 SFPM |
$912 |
|
FMA-901-V-R |
$852 |
FMA-901-I-R |
0-200 SFPM |
$912 |
|
FMA-902-V-R |
$852 |
FMA-902-I-R |
0-500 SFPM |
$912 |
|
FMA-903-V-R |
$852 |
FMA-903-I-R |
0-1000 SFPM |
$912 |
|
FMA-904-V-R |
$852 |
FMA-904-I-R |
0-2000 SFPM |
$912 |
|
FMA-905-V-R |
$852 |
FMA-905-I-R |
0-5000 SFPM |
$912 |
|
FMA-906-V-R |
$852 |
FMA-906-I-R |
0-10,000 SFPM |
$912 |
Model No. 0-5 Vdc Output with 3.75" Lg Probe |
Price |
Model No. 4-20 mA Output with 3.75" Lg Probe |
Range |
Price |
|
FMA-900-V-S |
$852 |
FMA-900-I-S |
0-100 SFPM |
$912 |
|
FMA-901-V-S |
$852 |
FMA-901-I-S |
0-200 SFPM |
$912 |
|
FMA-902-V-S |
$852 |
FMA-902-I-S |
0-500 SFPM |
$912 |
|
FMA-903-V-S |
$852 |
FMA-903-I-S |
0-1000 SFPM |
$912 |
|
FMA-904-V-S |
$852 |
FMA-904-I-S |
0-2000 SFPM |
$912 |
|
FMA-905-V-S |
$852 |
FMA-905-I-S |
0-5000 SFPM |
$912 |
|
FMA-906-V-S |
$852 |
FMA-906-I-S |
0-10,000 SFPM |
$912 |
Model No. 0-5 Vdc Output with 3.75" Lg Probe & Remote Electronics |
Price |
Model No. 4-20 mA Output with 3.75" Lg Probe & Remote Electronics |
Range |
Price |
|
FMA-900-V-S-R |
$882 |
FMA-900-I-S-R |
0-100 SFPM |
$942 |
|
FMA-901-V-S-R |
$882 |
FMA-901-I-S-R |
0-200 SFPM |
$942 |
|
FMA-902-V-S-R |
$882 |
FMA-902-I-S-R |
0-500 SFPM |
$942 |
|
FMA-903-V-S-R |
$882 |
FMA-903-I-S-R |
0-1000 SFPM |
$942 |
|
FMA-904-V-S-R |
$882 |
FMA-904-I-S-R |
0-2000 SFPM |
$942 |
|
FMA-905-V-S-R |
$882 |
FMA-905-I-S-R |
0-5000 SFPM |
$942 |
|
FMA-906-V-S-R |
$882 |
FMA-906-I-S-R |
0-10,000 SFPM |
$942 |
ACCESSORIES
Model No. |
Description |
Price |
SSLK-14-14 |
Stainless Steel Compression Fitting 1/4" |
$8.50 |
T-FER-1/4 |
Teflon Ferrules required for compression fitting. These ferrules prevent damage to probe. 10/pack |
$40 |
FPW-15 |
15 volts dc power supply |
$75 |
FMA-900-CABLE |
Replacement 15 Foot cable and connector |
$30 |
Note: Comes with 4 point Certificate of Compliance, mating connector pre-wired to 15' shielded cable and complete operator’s manual. To order with 3.75" probe instead of standard 13" probe, add suffix “-S” to model number and add $30 to price.
To order the new remote electronics version, add suffix “-R” to model number and add $30 to price. The remote electronics comes with a 15 foot cable from the probe to the electronics box.
Ordering Example: (1) FMA-904-I-S 4-20 mA Output with 3.75" Long Probe, (1) FPW-15 15 volts dc power supply, (1) SSLK-14-14 Stainless Steel Compression Fitting 1/4", (1) T-FER-1/4 Teflon ferrules (required for SSLK-14-14) Pack of 10, (1) IDP Panel meter for flow rate display = $1230.50
