HIGHLY ACCURATE, LOW-PRESSURE
INDUSTRIAL TRANSMITTER
PX656 Series
0-0.1 to 0-200 inH2O
0-25 Pa to 0-50 kPa
Starts at
$
610
Ideal Applications:
⻬ Boiler Inlet Air Systems
⻬ HVAC
⻬ Industrial Fume Hoods
⻬ Level Control
SPECIFICATIONS
Excitation: 12 to 36 Vdc
Output: 4 to 20 mA (2 wire)
Linearity:
PX656: 0.3% FS BFSL
PX657: 0.15% FS BFSL
Hysteresis:
PX656: 0.02% FS
PX657: 0.02% FS
Repeatability:
PX656: 0.05% FS
PX657: 0.05% FS
Operating Temp: -29 to 85°C
(-20 to 185°F)
Compensated Temp: -18 to 72°C
(0 to 160°F)
Thermal Effects:
Zero: 0.015% FS/°F
Span: 0.015% FS/°F
Proof Pressure: 10 psi
Burst Pressure: 50 psi
Static Pressure: 100 psi
Gage Type: Capacitance
Max Loop Resistance:
(Supply voltage – 12) x 50 Ω
Calibration Report: NIST calibration at
25, 50, 75 and 100% FS; upscale and
downscale provided
Response Time: 250 ms
Wetted Parts: Dry, clean non-corrosive
gases only
Enclosure: NEMA 4X (IP65)
Dimensions:
137 L x 76 W x 64 mm D (5.4 x 3 x 2.5")
Pressure Port:
Electrical Conn: Screw terminal
1
(two
⁄2 FNPT conduit)
Weight: 955 g (2.1 lb)
1
⁄4 FNPT
Standard
PX656-100DI, $610,
shown smaller
than actual size.
Recommended Reference
Book: Handbook of Systems
Engineering, EE-2530, $255.
Visit omega.com/bobi
for Additional Books
MOST POPULAR MODELS HIGHLIGHTED!
To Order (Specify Model Number)
RANGE
inH
O Pa MODEL NO. PRICE COMPATIBLE METERS*
2
0 to 0.1 0 to 25 PX656-0.1DI $725 DP25B-E, DP41-E, DP460-E
0 to 0.25 0 to 62 PX656-0.25DI 680 DP25B-E, DP41-E, DP460-E
0 to 0.5 0 to 125 PX656-0.5DI 645 DP25B-E, DP41-E, DP460-E
0 to 1 0 to 249 PX656-01DI 610
0 to 2 0 to 498 PX656-02DI 610 DP25B-E, DP41-E, DP460-E
0 to 3 0 to 748 PX656-03DI 610 DP25B-E, DP41-E, DP460-E
0 to 5 0 to 1.25k PX656-05DI 610 DP25B-E, DP41-E, DP460-E
0 to 10 0 to 2.49k PX656-10DI 610
0 to 25 0 to 6.23k PX656-25DI 610 DP25B-E, DP41-E, DP460-E
0 to 50 0 to 12.5k PX656-50DI 610 DP25B-E, DP41-E, DP460-E
0 to 100 0 to 24.9k PX656-100DI 610 DP25B-E, DP41-E, DP460-E
0 to 200 0 to 49.8k PX656-200DI 610 DP25B-E, DP41-E, DP460-E
BI-DIRECTIONAL RANGES
± 0.05 12 PX656-0.05BDI $725 DP25B-E, DP41-E, DP460-E
± 0.25 62 PX656-0.25BDI 680 DP25B-E, DP41-E, DP460-E
± 0.5 125 PX656-0.50BDI 610 DP25B-E, DP41-E, DP460-E
±1 249 PX656-01BDI 610 DP25B-E, DP41-E, DP460-E
± 2.5 623 PX656-2.5BDI 610 DP25B-E, DP41-E, DP460-E
±5 1.25k PX656-05BDI 610 DP25B-E, DP41-E, DP460-E
±10 2.49k PX656-10BDI 610 DP25B-E, DP41-E, DP460-E
± 25 6.23k PX656-25BDI 610 DP25B-E, DP41-E, DP460-E
± 50 12.5k PX656-50BDI 610 DP25B-E, DP41-E, DP460-E
± 100 24.9k PX656-100BDI 610 DP25B-E, DP41-E, DP460-E
Comes complete with operator’s manual.
To order the high-accuracy PX657, change “PX656” to “PX657” in model number and add $240.
Ordering Examples: PX657-1DI, high-accuracy 0 to 1 inH2O range transmitter with
4 to 20 mA output, $610 + 240 = $850.
PX656-01BDI, ±1 psi differential pressure transmitter with 4 to 20 mA output, 0 psi set at
12 mA, $610.
B-227
See section D for compatible meters.
*
DP25B-E, DP41-E, DP3002-E
DP25B-E, DP41-E, DP3002-E
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | info@omega.com
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