Product Specifications Ultrasonic Flowmeter AS-W ( For Natural Gas ) AS-C ( For Air Measures gas consumption at high sensitivity and high precision *1. The flow rate measurement range is ±5% RD: Inclusive before and not inclusive after and ±2% RD: Inclusive for both before and after *2. When the flow rate is less than 0.25% of the maximum flow rate, the instantaneous flow rate is indicated as 0 m3/h. For the normal conversion type, the low flow cut off value is the normal conversion flow rate corresponding to 0.05 m/s. *3. Automatically switched in every 4 seconds. *4. This flowmeter guarantees the flow measurement accuracy with the pipes listed in the right table. (If you use pipes with the different pipe standard and size not listed in the table, the flowmeter may not satisfy the flow measurement accuracy. Consult us in advance if it is considered to use different pipes out of this range.) Piping standard External dimensions Caution regarding to methane Depending on concentration (%) of methane in natural gas (NG), for each nominal diameter, requirement of the working pressure condition is provided as described in the below table. (Do not use if the working pressure does not satisfy the conditions below. Also, do not use if there is a possibility that methane concentration may change greatly after installation so that the conditions below will not be satisfied.) * No restriction for the 100A or smaller models. O Conversion table for actual flow rate and standard flow rate (for absolute pressure 0.54 MPa at 30°C) Standard flow rate (Nm3/h) = Absolute temperature of working temperature (273.15K+t) Absolute pressure of working pressure (P) Absolute pressure at 1 atm (0.10133 MPa) Actual flow rate Wide rangeability of 1:400 Even small flow is measurable, so it enables pipe leakage detection. Zero pressure loss and zero energy loss achieved by no obstacle inside the measurement tube. No change of accuracy in long time use and free from maintenance. Easy-to-read and large-sized digital display, which is rotatable by 90 degrees on the spot. Enhanced logging function Eleven data log items including timestamp, temperature, pressure, instantaneous flow rate, accumulated flow rate, etc. can be stored for up to 6600 sets. Data acquisition interval can be set to 5 minutes to 24 hours. Manufactured and Distributed byAichi tokei denki co.,ltd. URL : https://www.aichitokei.net/ 1-2-70 Chitose, Atsuta-ku, Nagoya, 456-8691, Japan For inquires, please contact us. Overseas Business Division TEL +81-(0)52-661-5150 Technical specifications in this catalog are up-to-date as of March 2023. LONGLIFE Temperature and pressure sensors are installed. Normal and standard conversion functions are equipped. Remote measurement RS485 output in addition to unit pulses allows for remote indication and energy management. Runs with a built-in lithium battery and no necessity of electric construction. battery life 10 years Please understand that product specifications may be changed without notice in order to improve performance. We are always happy to provide the latest catalogs and brochures, and respond to inquiries made to our offices.

AS series solved these problems. EX:1 Flow control and leakage monitoring with RTU and GIS Good, there is no leakage! At their middle supply pressure site, when natural gas was supplied, failure that impurities in the pipes damage the rotating parts of existing rotary meters and turbine meters often occurred. AS meter does not have any obstacle inside the measurement tube, so impurities contained in gas are blown away to downstream side of AS meter, and do not damage AS meter. Performance stability of AS meter under middle pressure supply was also proved. Turbine flow meter EX:2 Adaptability...