Toshiba – Toshiba LF494 User Manual
Page 148
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TOSHIBA
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P^iriiineter setting— Paramulers can be set as follows depending on whether the LC’D
display is provided or not,
LF404
with
LCD display: I’hree control keys are provided to set conllguration
parameters,
LF404 without LCD display: The AFlOO liand-hdd terminal is needed to set
parameters.
Zero and spun calibration:
Built-'m calibration signal source allows converter unit check.
Zero adjustment:
Zero point adjustment can be started by pressing the switch in the converter.
Conditions when power fails:
The outputs and display will become as follow.s when power fails. Parameter iietting
values are stored in non-volatile memory and the values will be restored v-'hen the
power returns to normal condition.
Current outpul: 0 mA dc
Digital output; OFF (Op^n )
LCD display: No display
Power supply:
One of Ihc following can be selected:
* 100 to 240 V ac (Allowable voltage SO to 264 V ac ), iO/bO Hz (standard).
* 24 V dc (Allowable voltage 2T4 to 28.8 V dc)
* 110 V dc (Allowable voltage iJS to 121 V dc)
Arrester:
Arresters are installed irt the power supply and current signal output circuit.
To use the arresters, ground the GND terminal. ( See Chapter 5, "Wiring/’)
Housing: Aluminum alloy
Coat i ng: Aery I ic re si n-ba ked coat; ngj pearl -gray colored
Strueturr; 1P67 (NEMA4) Watertight
Cable connection port 1/2-14 NPT thread
Vibration resistance
No resonance To the following levels of vibration:
• 10 to 60 J Iz, amplitude 0.07 mm;
* 60 to 150 Hz with acceleration of 9,8 m/s’.
No problem occurs after application of Hz, 29,4 m,/s vibration in any axis for four 4
hours.
Note: Avoid using the flowmeter in an environnieiU with constant vibration.
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