Fuel Flow Indicator Frequently Asked Questions

Question number FAQ-0013

Specifications comparison table for FM-2500 flow rate indicator and FM-1500 flow rate indicator.

item	FM-2500	FM-1500	Remarks
Suitable flow detector	FP Series	○	○	FP-213S、FP-213、FP-2140H、FP-2240HA、FP-215、FP-2250A
FZ Series	○	○	FZ-2100、FZ2200
FX Series	○	×	FX-1110、FX-1120、FX-1130
*Please contact us regarding older detector models.
Measurement module	DF-0400	○	○	For flow detector FP series
FZ-0300	○	○	For use with FZ series flow detectors
FX-0400	○	×	For use with the FX series flow detectors. This module cannot be combined with other measurement modules.
Calculation module	FM-0210	○	×	Use in combination with flow detectors FP and FZ series (each module). Not compatible with FX series.
Time measurement	Sequencing	s	○	○
Total cost	s	○	○
Rotation measurement (rotation speed/rotation rate)	r/min、REV	○	×
Pressure measurement	kPa	○	○	A pressure-measuring detector (FP-2240HA, FP-2250A) is used.
Temperature measurement	℃	○	○	Use a detector capable of measuring temperature (FP-2240HA, FP-2250A, FZ-2100, FZ-2200).
Flow rate measurement	instantaneous	mL/s、g/s	○	×
mL/min、g/min	○	×
L/h、kg/h	○	○
Sequencing	mL、g	○	○
L、kg	○	×
Total cost	mL、g	○	○
L、kg	○	×
Interval average	mL/s、g/s	○	×	Segmented cumulative flow rate / Segment time
mL/min、g/min	○	×
L/h、kg/h	○	○
Total average	mL/s、g/s	○	×	Total cumulative flow rate / Total cumulative time
mL/min、g/min	○	×
L/h、kg/h	○	○
Injection amount	mm³/st、mg/st	○	×
section Average injection amount	mm³/st、mg/st	○	×
Average injection amount	mm³/st、mg/st	○	×
Fuel Density Meter Test*	density	g/cm³	○	○	*When using the FZ series flow detector
Conversion temperature setting		○	○	2500: Density calculation based on the temperature of three set points
	1500: Density calculation based on the temperature of a set point
Display update time	instantaneous	s	any	Fixed	2500: Set within the range of 1 to 10 seconds (in 1-second increments)
1500: 1 second
Cumulative measurement mode	Flow rate setting method	→	2500: Time integration and rotational integration from the start signal to the set integrated flow rate.
1500: Time integration from the start signal to the set cumulative flow rate.
Time setting method	→	2500: Flow rate integration and rotational speed integration from the start signal to the set integration time.
1500: Flow rate integration from the start signal to the set integration time.
Rotation setting method	→	×	2500: Flow rate integration and time integration from the start signal to the set integration rotation speed.
Voltage output	Flow Rate Measurement	0～10V	Value is arbitrary	Value selection	2500: 0-10V/Low-Hi (Low and Hi values are arbitrary)
1500: 0-10V/0-FS (FS value can be selected from 100/200/300/500/1000/1500 (kg/h, L/h))
pressure (By a detector)	0～10V	Value is arbitrary	Value selection	2500: 0-10V/Low-Hi (Low and Hi values are arbitrary)
1500: 0-10V/0-FS (FS value can be selected from 200/500/980/1000 (kPa)) *Standard: 980kPa
temperature (By a detector)	0～10V	Value is arbitrary	Fixed	2500: 0-10V/Low-Hi (Low and Hi values are arbitrary)
1500: 0-10V/0-FS (FS value fixed at 100°C)
density (FZ only)	0～10V	Value is arbitrary	Fixed	2500: 0~10V/Low~Hi (Low, Hi value optional) 0~1g/cm ³ (fixed)
1500: 0-10V/0-FS (FS value is fixed at 1g/ ^cm³)
Interface	Remote	○	○	Option: FM-0200
RS-232C	○	○*	1500: Measurement values can be printed using DPU-414 (sold separately).
GPIB	○	○	Option: RS-232C is unusable when the FM-0263 GPIB is stored.
Digital I/O	○	×	Option for FX series detector: FM-0361
Memory function	Measurement memory	○	×
Memory backup	○	×
Display method	→	2500: LCD with CFL backlight, 320 x 240 dots
1500: Fluorescent display tube (20 characters x 2 lines) Character shape: 5 x 8 dots
weight	→	2500: Approximately 7kg (when 3 modules are stored)
1500: Approx. 4.2kg
Maximum current consumption	→	2500: 40VA or less, external fuse 2A
1500: 30VA or less, external fuse 2A

Last updated: 2026-07-15