Details

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Product outline

F490A is a compact, lightweight handheld digital indicator for strain gauge type sensors that allows measurement of load, pressure and torque. The measurement data is recorded in CSV format in its internal memory, and the file can be referred to and copied through USB interface. F490A is equipped with fulfilling functions such as a variety of information displays, four types of hold functions including Peak and Valley, multi-calibration function that enables storing six channels of calibration values and allows them to be selected by a field sensor, and a HO / LO limit comparison function. The operation of AA alkaline batteries provides continuous use for approx. 30 hours*.

* Connectable to 350Ω series sensor while backlight is off.
 

Specifications

Analog section｜Display section｜Setting section｜Recorder｜Hold section｜Measuring mode｜Clock｜Interface｜General performance｜Attachments

 

Analog section
Excitation voltage	DC3V±10%, Output current: within 35mA
Signal input range	-3.0 to +3.0mV/V
Accuracy	Non-linearity: within 0.02%/FS (at 3.0mV/V input) Zero drift: within 0.3μV/℃ RTI Gain drift: within 5ppm/℃
A/D converter	Speed: 80 times/sec. Resolution: 24bit (binary), Approx. 1/30000 at 3.0mV/V input

Display section
Display unit	128×64 dot black and white LCD
Measured value	5digits: -99999 to +99999, Sign: Character height: 14mm
Status display	Status display1: R(Recording)/ A(AC adapter on use)/ U(USB in connection)/ N(NOV RAM reading)/ B(Backup battery abnormal) Status display2: HI/ OK/ LO/ PEAK/ BOTTOM/ HOLD

Setting section

Setting items

･ Tare*/ equivalent input calibration/ span calibration/ zero calibration(one-touch zero)/ weight unit setting*/ channel setting/ HI setting/ LO setting/ machine ID setting*/ setting value lock ･ Unit/ digital filter/ MD(period, range)/ ZT(period, range)/ near zero/ digital zero/ minimum scale ･ Data/ buzzer/ backlight/ auto off/ version display/ memory check/ initialization ･ Hold: mode/ range/ start level/ end level/ monitoring time ･ Graph: time axis*/ mode*/ trigger edge*/ trigger level*/ pre-trigger* ･ Operation mode/ HI/LO comparison mode/ measuring mode*/ recording mode*/ real-time output* * Not usable at simple operation mode

Recorder
Recording function	･ Record when [REC] is pressed ･ Record when stability is detected ･ Record hold value at hold-release time ･ Interval recording(records data at every fixed interval) ･ Records graph data(records data displayed in graph)
Recording media	Internal memory
Recording method	Text form of CSV format
Recording data	ID, number of recordings, recording data, measured channels, measured values, unit
Number of recording data	20,000 data

Hold section
	･ Hold Mode: Peak Hold/ valley hold/ peak-to-peak hold/ sample hold ･ Data monitoring range: All ranges/ level/ level+time

Measuring mode
	Load measuring/ counting

Clock
Display	Year (last two digits), month, day, hour, minute
Accuracy	Lunar inequality 1 minute. (ordinary temperature)

Interface

USB interface (Communication standard: Compliant with USB Ver.1.1, Communication speed: Full speed, Class: Mass-storage and virtual COM port, OS: Windows 7/ Windows 10) ･ File operation The F490A is recognized as a drive, which enables file reference and copying. ･ Virtual COM port Set values can be read and written by terminal software. ･ Real-time output Measured data are output in succession on USB.

General performance
Internal power source	AA alkaline batteries or nickel metal hydride batteries (4)
External power source	Dedicated AC adapter (for 100V AC)
Current consumption	When a 120Ω sensor is connected: Approx. 60mA (back light off) When a 120Ω sensor is connected: Approx. 70mA (back light on)
Backup power source	Set values and record data are maintained by the lithium battery (warranty period 5 years or more)
Continuous use time	When a 350Ω sensor is connected: Approx. 30 hours (back light off) When a 120Ω sensor is connected: Approx. 12 hours (back light off)
Operating conditions	Temperature: -10℃ to +40℃ Humidity: 80%RH or lower（non-condensing)
Dimensions	86(W)×132(H)×30(D) mm (not including projections)
Weight	Approx. 290g (including the battery weight approximately 95g)

Attachments
Sensor connector	1
AA alkaline battery	4
CD-ROM	1
Operation manual	1

Optional accessories

Model
AP0516	Special AC adapter (for AC100V)
AP0520A	Special AC adapter (for free power source)
CA81-USB	1.8m miniUSB-computer USB cable

Download

Product catalogue(PDF)		F490A catalogue(644 KB)