ATSENSE Fuel Flow and Density Meter FDM Series
Obtain detailed fuel flow data using input from volumetric flow, density, temperature, and pressure sensors. Capable of instantaneous to interval-based measurements, providing insights into flow rates, density, temperature, and pressure. Compatible with FDS and FS series flow detectors and DM-200 density detector. Ideal for comprehensive monitoring, this system ensures precise fuel management. Produced by ATSENSE INC. in Tokyo, Japan.Real-time simultaneous measurement Possible instantaneous and synchronized display and output of instantaneous flow, density, mass (converted), temperature, and pressure data. High-speed instantaneous flow and pressure measurement 0.5ms high-speed refresh time for the analog output of both instantaneous flow and pressure. And setting of a moving average in units of 0.5ms also possible. Rapid fluctuations in flow and pressure can be captured. (Note) FDM-720 is for 1ms. High-resolution measurement With a high measuring resolution, detailed measurements can be made during dling, at low rotational speeds and low loads, and of the variation in engine torque. ●FDS-1213+FDM-700/FDM-720: 0.0005mL ●FDS-1214+FDM-700/FDM-720: 0.0055mL
A multitude of measurements can be realized with the input of signals from the fuel flow and density detector FDS series or the fuel flow detector FS series, and from the density detector DM-200. Possible simultaneous measurement of instantaneous flow, by mass conversion, total flow, total time, density, temperature, pressure, and so on.
| FDM-700 | FDM-720 | |
| Arithmetic | ||
| Connection detector | Fuel flow and density detector Fuel flow detector Density detector | |
| Inter-channel calculation | No | Yes |
| Temperature correction | Correction of the volume flow to standard temperature using the detected temperature | |
| Mass conversion | Calculation of the detected volume flow and density | |
| Display | ||
| Display | Color graphic LCD (resolution 480*272) | |
| Measuring screen display format | Selection from a display of 2, 4, 6, 12 items | |
| Update cycle | According to a setting of 1s for the density and temperature, 0.1s for the time and total flow, and 0.1 to 10s for the instantaneous flow and pressure | |
| Memory for displayed items | The content of the measuring screen display is saved in 3 different patterns | |
| Items (units) | Selectable items and units (maximum display of 12 of the following items) Instantaneous flow/average flow of total time/average flow of total time per interval (mL/s, g/s, mL/min, g/min, L/h, kg/h) Total flow/total flow per interval (mL, g, L, kg) Total time/total time per interval (s, min) Instantaneous density/converted density (g/cm3) Instantaneous temperature (°C), instantaneous pressure (kPa) | |
| Signal input | ||
| Number of inputs | ||
| Density and flow detector | 1 input | 2 inputs |
| Integrated external control | 1 input (start-stop switch for connection) | |
| Input functions | START/STOP/HOLD/STOP/MONI | |
| Analog output | ||
| Number of outputs | 8 outputs | |
| (possible selection of 8 of the following items, and scaling possible for a single item) | ||
| Connector | BNC receptacle | |
| Items | Instantaneous flow/average flow of total time/average flow of total time per interval/ Total flow/total flow per interval/total time/total time per interval/ Instantaneous density/converted density/instantaneous temperature/instantaneous pressure | |
| D/A conversion resolution | 16bit （±10.5V） | |
| Scaling | All items variable from zero to full scale | |
| Output range | ±10V (load of 4.7kΩ or more) | |
| Accuracy | ±0.1%F.S.（@23°C±5°C） | |
| Refresh time | ||
| Instantaneous flow and pressure | Fixed at 0.5ms | Fixed at 1ms |
| Instantaneous density and temperature | Fixed at 1s | |
| Measurement over an interval | For every HOLD (including automatic input) and STOP input | |
| Pulse output | ||
| Number of outputs | 4 outputs | |
| Connector | BNC receptacle | |
| Items | ||
| Pulse output in integrated units | P OUT1 | P OUT1,2 |
| Output during integration | P OUT2 | P OUT1,2 |
| Flow sensor phase A output | P OUT3 | P OUT3,4 |
| Flow sensor phase B output | P OUT4 | P OUT3,4 |
| Pulse output resolution in integrated units | 0.001/0.01/0.1/1mL（g）/P | |
| Output during integration | 5V output at START | |
| Flow sensor A/B phase output | Flow sensor phase A or phase B signal output built in to the detector | |
| Output range | 0-5V logic signal (±4mA/ch output current) | |
| Stopping condition for the integrated measurement | ||
| Stopped manually | From the starting operation for the integrated measurement to the stopping operation | |
| Integration time | From the starting operation for the integrated measurement up until the total integration time has been reached | |
| Total flow | From the starting operation for the integrated measurement up until the total integrated flow has been reached | |
| Integrated measurement functions | ||
| One-time measurement | A one-time measurement from the starting operation for the integrated measurement up until the integrated measurement stopping condition is satisfied | |
| Measurement over an interval | Over the interval from the starting operation for the integrated measurement to a HOLD or STOP input | |
| Continuous measurement | After the integrated measurement stopping condition has been established following the starting operation for the measurement, integrated measurement is repeated once again, and continues up until it is stopped manually | |
| Clock | ||
| Functions | The current time is displayed in the 24-hour format | |
| Data memory | ||
| Saved items | Individual measured values, saved time, and types of saved events | |
| Save | Automatically saved on a HOLD or STOP | |
| Memory capacity | 100 addresses with automatic increment, returning to 1 following 100 | |
| RS-232C interface | ||
| Functions | Reading out measured values, and reading and writing settings | |
| Connector | D-Sub9pin male | |
| General specification | ||
| Supplied power sources | DC9 to 32V (20W or less), and attached AC adaptor | |
| Electrical insulation | Detector input – analog output, pulse output, communication – supplied power sources | |
| Operating temperature and humidity range | 0 to 40°C, 85%RH or less (with no condensation) | |
| External dimensions | See the external dimensions diagram | |
| Weight | Approx. 1.7kg | |
