ATSENSE FDM Series | Denkei Corporation Americas

ATSENSE Fuel Flow and Density Meter FDM Series

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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.

Fuel Flow and Density Meter

Model:

FDM Series

Maker:

ATSENSE.

Features

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

Introduction to Functions

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.

Specification

	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

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