Solid State Pressure Sensors D8M Solid State Pressure Sensors with Analog, Pulse or Frequency Outputs • Compact housing measures 30L x 30W x 12.4H mm.  Accept 4 mm OD tubing (D8M-A1, -R1); 3 mm OD tubing for (D8M-D1, -D2), 6 mm OD tubing for D8M-D82.  Chemical-resistant plastic (PBT) body.  Metal shield mounted version (D8M-D82) available.  IP40 enclosure rating for embedded applications.  Pre-wired and PCB mounting models available. Ordering Information Operating pressure Output signal Output frequency Power supply Withstand pressure Model range voltage 0 to 4.9 kPa Analog, -- 2.2 ±0.1 VDC 58.8 kPa (8.53 psi) for 3 D8M-A1 (0 to 0.71 psi) 15 to 1247 mV minutes 0 to 5.88 kPa Pulse count, -- 2.2 to 3.4 VDC with 58.8 kPa D8M-D1 (0 to 0.85 psi) 1 pulse/9.81 Pa regulator (8.53 psi) for 3 minutes (1/0.0014 psi) 0 to 5.88 kPa Pulse count, -- 2.2 to 3.4 VDC with 58.8 kPa D8M-D2 (0 to 0.85 psi) 1 pulse/9.81 Pa regulator (8.53 psi) for 3 minutes (1/0.0014 psi) 0 to 4.9 kPa Pulse count, -- 2.2 to 3.4 VDC with 19.6 kPa (2.84 psi) for 5 D8M-D82 (0 to 0.71 psi) 1 pulse/9.81 Pa regulator minutes (1/0.0014 psi) 0 to 196.13 Pa Frequency, 80 to 300 kHz 4.2 to 5.5 VDC with 3 kPa (0.435 psi) for 10 D8M-R1 (0 to 0.028 psi) 1 kHz/9.81 Pa regulator seconds (1 kHz/0.0014 psi) Solid State Pressure Sensors D8M 1 Specifications ■ Electrical Ratings Item D8M-A1 D8M-D1 D8M-D2 D8M-D82 D8M-R1 Power supply voltage 2.2 ±0.1 VDC 2.2 to 3.4 VDC with 2.2 to 3.4 VDC with 2.2 to 3.4 VDC with 4.2 to 5.5 VDC with regulator regulator regulator regulator Current consumption 2.5 mA max. 25 mA max. 25 µA 100 mA ±5% at 3 VDC 10 mA max. Load resistance 1 MΩ min. -- -- -- -- Output resistance 500 Ω max. -- -- -- -- Leakage current 1 mA or less 1 mA or less 1 mA or less 1 mA or less 1 mA or less Output voltage 15 to 1247 mV -- -- -- -- Output pulses -- -- -- -- 80 to 300 kHz Output resolution (Note 1) 1 pulse/9.81 Pa 1 pulse/9.81 Pa 1 pulse/9.81 Pa 1 kHz/9.81 Pa Output voltage rate of 1 MΩ or more into 30 -- -- -- -- change with resistance kΩ is made within load change 2.5% Output voltage by input 0.98 kPa = 261 mV -- -- -- -- pressure 1.96 kPa = 508 mV 3.73 kPa = 951 mV 4.9 kPa = 1247 mV (Note 1) Operating characteristics ±62 mV initial -- -- -- -- ±37 mV during test 0 kPa = 30 pulses 0 kPa = 30 pulses 0 kPa = 30 pulses 0 Pa = and after 180 ±100 kHz; 0.59 kPa = 60 ±32 0.59 kPa = 60 ±32 0.15 kPa = 45 ±30 pulses pulses pulses Incremental change from 0 value: 1.96 kPa = 200 ±24 1.96 kPa = 200 ±24 2 kPa = 204 ±15 pulses pulses pulses 49.03 Pa = 5 ±0.9 kHz 3.73 kPa = 380 ±24 3.73 kPa = 380 ±24 4 kPa = 438 ±46 pulses pulses pulses 73.55 Pa = 7.5 ±1.0 kHz 5.39 kPa = 530 ±82 5.39 kPa = 550 ±82 pulses pulses 147.10 Pa = 15 ±0.8 kHz (Note 2) (Note 2) 196.13 Pa = 20 ±1.4 kHz (Note 2) ±62 mV temperature -- -- -- -- influence Note: 1. Output voltage (mV) = Supply voltage V (2.2) x (2.464 x Pressure (kPa)/9.8 x 1000 + 15) 2. Values measured during and after testing. ■ Operating Characteristics Item D8M-A1 D8M-D1 D8M-D2 D8M-D82 D8M-R1 Pressure type Gauge Pressure range 0 to 4.9 kPa 0 to 5.88 kPa 0 to 5.88 kPa 0 to 4.9 kPa 0 to 196.13 Pa (0 to 0.71 psi) (0 to 0.85 psi) (0 to 0.85 psi) (0 to 0.71 psi) (0 to 0.028 psi) Withstand pressure 5.88 kPa for 3 58.8 kPa for 3 58.8 kPa for 3 19.6 kPa for 5 3 kPa for 10 minutes minutes minutes minutes seconds Repeatability/hystersis ±0.5% FS ±0.5% FS NA ±0.5% FS ±0.5% FS Non-linearity -- -- -- ±2% FS max. ±2% FS max. characteristics Response time 3.0 ms 2.5 ms (pressure) 3 ms (pressure) 1.5 ms (pressure) 3 seconds max. 18 ms max. (switch) 32 ms max. (switch) 30 ms max. (switch) 100 ms (discharge) 250 ms (discharge) 45 ms (discharge) Operating temperature -30° to 70°C -30° to 70°C -30° to 70°C -10° to 60°C -20° to 70°C (Note) Storage temperature -40° to 80°C -40° to 80°C -40° to 80°C -20° to 70°C -30° to 80°C (Note) Operating humidity 25 to 95% 25 to 95% 25 to 95% 25 to 95% 25 to 95% Note: With no icing or condensation 2 Solid State Pressure Sensors D8M ■ Environmental Characteristics Item D8M-A1 D8M-D1 D8M-D2 D8M-D82 D8M-R1 Insulation resistance 100 mΩ min., 250 VDC between lead terminals and the base Dielectric strength 250 VAC, 50/60 Hz for 1 minute between lead terminals and the base 500 VAC, 50/60 Hz for 1 minute between ter- minals and the base Degree of protection NA IP40 IP40 IP40 IP40 Pressure port 4 mm OD 3 mm OD 3 mm OD 6 mm OD 4 mm OD Connection method Solder on PC boards Wiring connector on Wiring connector on Three AWG26 wires, Wiring connector on top top 115 mm long bottom Weight NA NA NA NA NA Material PBT (polybutylene terephthalate) Operation ■ Response Timing Charts ■ Interface Circuit Diagram D8M-D1, D2, D82 D8M-R1 Model T1T2T3 D8M-D1 2.5 ms min. 18 ms max. 100 ms min. D8M-D2 3.0 ms min. 32 ms max. 250 ms min. D8M-D82 1.5 ms min. 30 ms max. 45 ms max. Legend: T1, Pressure measurement time T2, Response time T3, Electrical discharge time D8M-R1 Response time to 90% of 0.2kPa Max. 3 seconds (excluding time for pressure change) Application Examples Compact D8M solid state pressure sensors provide reliable detection for gas and air inflow for burner controls in water heaters, furnaces and other gas-fired devices. They can also be used in gas usage meters. Solid State Pressure Sensors D8M 3 Dimensions Unit: mm (inch) ■ D8M-A1 17.7 (0.70) 30 (1.18) 23 (0.92) ±0.2 10.1 (0.40) 5 (0.20) 2 (0.08) 1.6 (0.06) 4.4 (0.17) 4 (0.16) OD Two 3.2 (0.13) dia. 11.6 (0.46) 30 (1.18) 18.8 (0.74) mounting holes 18.6 (0.73) 2 (0.08) 23 (0.92) ±0.2 7 (0.28) LOT NUMBER TYPE NAME Two, 1.5 (0.06) dia. standoff pins Three, 0.635 (0.025) square terminal leads 4 (0.16) OD Mounting Holes Terminal Arrangement Two, 3 (0.12) dia. (Top View) (Top View) GND VOUT VCC 10.7 (0.42) 15.6 (0.61) ±0.01 23 (0.91) ±0.1 Two, M3 holes 5.08 (0.20) 23 (0.91) ±0.1 5.08 (0.20) ■ D8M-D1 4 Solid State Pressure Sensors D8M ■ D8M-D2 ■ D8M-D82 Solid State Pressure Sensors D8M 5 ■ D8M-R1 17.7 (0.70) 30 (1.18) 10.1 (0.40) 23 (0.91) 5 (0.20) 2 (0.08) 1.6 (0.06) 2 (0.08) 30 18.8 (0.74) (1.18) 2 (0.08) dia. Two, 3.2 (0.13) dia. 11.6 4 (0.16) OD 18.6 (0.73) 23 (0.46) (0.91) 7 (0.28) LOT NUMBER TYPE NAME 5 (0.20) dia. CONNECTOR VCC (Pin 1) FOUT (Pin 2) GND (Pin 3) Precautions Be sure to abide by the following precautions for the safe operation of the Sensor. ■ Soldering Solder D8M-A1 on PC boards within 5 seconds using a soldering iron whose tip temperature is adjusted to 345° to 355°C. ■ Mounting For proper operation, mount the sensor within ±10 degrees of level. ALL DIMENSIONS SHO ALL DIMENSIONS SHO ALL DIMENSIONS SHOW W WN N N ARE IN MILLIMETERS ARE IN MILLIMETERS ARE IN MILLIMETERS. .. 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On One e Ea East Co st Comm mmerc erce e Dr Driiv ve e 8 885 Miln 85 Milner er A Av ve en nue ue One Commerce Drive 885 Milner Avenue Global - Global - http:/ http://www /www.omron. .omron.com com Global - http://www.omron.com Scha Schaumb umbu urg, IL rg, IL 6 60173 0173 T To oronto ronto,, Ontar Ontariio M1B 5V8 o M1B 5V8 Schaumburg, IL 60173 Toronto, Ontario M1B 5V8 USA - USA - http:/ http://www /www.omron. .omron.com/oei com/oei USA - http://www.omron.com/oei Can Canada ada - - http http://www ://www.omron.com/o .omron.com/oc cii Canada - http://www.omron.ca 1-800-55-OMR 847-882-2288 847-882-2288 ON 416-286-6465 416-286-6465 416-286-6465 Cat. No Cat. No. . T0 CS01 26-E3-1 WAD1 07/02/7.5M 10/02 Sp ecificatio Specificat ns sub ions ject to subject to change chan witho ge witho ut noti ut no ce tice Pr Prin inte ted i d in n USA USA Cat. No. CS01WAD1(A) 11/02 Specifications subject to change without notice Printed in USA 6 Solid State Pressure Sensors D8M