160.00005 Ist Innovative Sensor

Out of Liquid Evaluation Kit Thermal Mass Flow Evaluation Kit Only for evaluation purposes Benefits & Characteristics Single supply 5 V No contact between sensor and liquid DC Suitable for aggressive liquids Adjustable by customer 1) Illustration L 1) For actual size, see dimensions Technical Data Tube dimensions (L x x ( ) in mm): 40 x 4 x (3.8) OUTER INNER PCB dimensions (L x W x H in mm): 25 x 58 x 12 Operating measuring range: 0 ml/min to 3000 ml/min (4 m/s) Response time (t ): < 300 ms (at step from 0 to 1000 ml/min) 90 Warm up time: < 30 s Connection (PCB to tube): Cu/Ag-wire, PTFE insulated, AWG 30/19, 50 mm Heater: R (0 C) = 50 1 % H Temperature sensor: R (0 C) = 1000 1 % s Connection (module): Screw terminal Supply voltage: 5 V 5 % DC Current consumption: 1.5 A (maximal) Analogue output, non linear 0 V to < 5.0 V DC DC Tube material: Stainless steel DFOOL EVA-KIT E2.2.2 preliminary - Farnell 1/3 PRELIMINARY INNER OUTEROut of Liquid Evaluation Kit Thermal Mass Flow Evaluation Kit Only for evaluation purposes Adjustement Procedure (if necessary) heating power adjust + 1 R1 5 VDC J1 - 2 LED 10 red last green TP1 heater + - voltage nc (5 to 24 VDC) offset 1 2 3 4 adjust J2 J1 Pin 1 Pin 2 V = 5.0 V (regulated) minimum 1.5 A GND DD DC J2 Pin 1 Pin 2 Pin 3 Pin 4 GND analog out (non-linear flow signal 0 to < 5 V ) DC 1. power up the module 2. start pump to fill up the system (tube) with liquid 3. wait until output signal is stable (about 30 s) 4. adjust potentiometer R1 to a heater voltage of about 8 to 10 V at TP1 DC 5. apply a known flow (for example 200 ml/min) 6. measure analog output voltage at J2 Pin2 (should be in the range of 2.0 to 2.5 V at 200 ml/min) DC 7. adjust R1 for desired output voltage 8. stop flow 9. check if analog output voltage at J2 Pin2 is < 0.1 V DC 10. if not, push the offset buttons repeatedly to adjust output voltage and LEDs so only the green LED is ON and voltage is below 0.1 V DC 11. apply flow again and check output voltage 12. this output signal is the non-linearized flow signal DFOOL EVA-KIT E2.2.2 preliminary - Farnell 2/3 PRELIMINARY