Product Name: MS Series Dwyer differential pressure transmitter Model: MS-121, MS-111, MS-131, MS-141 to measure differential pressure and wind speed, can with live LCD features: small-scale, field adjustable Metric English two kinds of range, can monitor pressure or wind speed: Air and non-combustible compatible gases Accuracy: MS-X21: 0.5 "wc and 0.25" wc: ± 1%; 0.1 "wc: ± 2%; 100 Pa and 50 Pa: ± 1%; 25 Pa: ± 2% MS-X11: 5 "wc and 2" wc: ± 1%; 1 "wc:. ± 2%; 1000 Pa and 500 Pa: ± 1%; 200 Pa: ± 2% (under standard conditions @) Stability: ± 1% FS / year Temperature limits: 0 ~ 150 ° F (-18 ~ 66 ° C) Pressure limit: 1 psi maximum, optional; 10 psi, pulse pressure power : 10 ~ 35 VDC (2- wire); 17 ~ 36 VDC or isolation of 21.6 ~ 33 VAC (3- wire) Output: 4 ~ 20 mA (2- wire); 0 ~ 10 V (3- wire) reaction time :. 0.5 ~ 15 sec spot continuously adjustable to provide 1.5 to 95% of the 45 seconds of reaction time and full-scale bias: Keypad loop resistance: current output: 0-1250 maximum voltage output: Minimum load impedance 1 k Current consumption: 40 mA maximum display (optional): 4 LCD Electrical connections: 4-20 mA, 2- line: Continental terminal 16 ~ 26 AWG 0-10 V, 3- line: Continental terminal 16 ~ 22 AWG pressure connection: 3/16 "(5 mm) maximum outer diameter of 9 mm inner diameter of the tube package:. NEMA 4X (IP66) Mounting Orientation: Diaphragm vertical position Weight: 8.0 oz (230 g) Certification: CE Selection table: Model Output range Installation MS-121 4-20 mA 0.1 ", 0.25", 0.5 "wc (25, 50, 100 Pa) wall or panel mounted MS-122 4-20 mA 0.1", 0.25 ", 0.5" wc (25, 50, 100 Pa) pipeline MS-321 0-10 V 0.1 ", 0.25", 0.5 "wc (25, 50, 100 Pa) wall or panel mounted MS-322 0-10 V 0.1", 0.25 ", 0.5" wc (25, 50, 100 Pa) pipeline MS-111 4-20 mA 1 ", 2", 5 "wc (250, 500, 1250 Pa) wall or panel mounted MS-112 4-20 mA 1", 2 ", 5" wc (250, 500, 1250 Pa) pipeline MS-311 0-10 V 1 ", 2", 5 "wc (250, 500, 1250 Pa) wall or panel mounted MS-312 0-10 V 1 ", 2", 5 "wc (250, 500, 1250 Pa) pipeline MS-131 4-20 mA 10" wc (2 kPa) wall or panel mounted MS-331 0-10 V 10 "wc (2 kPa ) wall or panel mounted MS-141 4-20 mA 15 "wc (3 kPa) wall or panel mounted MS-341 0-10 V 15" wc (3 kPa) wall or panel mounted MS-151 4-20 mA 25 "wc (5 kPa) wall or panel mounted MS-351 0-10 V 25" wc (5 kPa) wall or panel mounted MS-021 4-20 mA ± 0.1 ", 0.25", 0.5 "wc ( ± 25, 50, 100 Pa) wall or panel mounted MS-221 0-10 V ± 0.1 ", 0.25", 0.5 "wc (± 25, 50, 100 Pa) wall or panel mounting NOTE: -LCD: band LCD display -XX-XX2: the model last digit to 2, pipeline installation