Oval EL4501, Instructions Manual

Page: 9 / 20

E-888-5-E
5. GENERAL SPECIFICATIONS
Table 5.
Item Description
Input
signals
Flow input
Signal name
Pulse
generator
Power to generator
Speed of
response
8V -wire current pulse OPTO 0, 0 8.5VDC kHz
Contact closure pulse PG0
.5VDC Allowable
current
0mA app.
Shortcircuit
protection
circuit
provided
50Hz
-wire, VDC -wire
Voltage pulse
PG0,
NPG0A (F)
kHz
VDC -wire
Current pulse (/0mA)
PA, 5, 5,
NPG0A (E)
.0VDC
VDC -wire Current pulse
PG0S
.5VDC
Open collector pulse
FlowPet-5G,
NPG0A (E)
Temperature input
Resist. thermometer Pt 00 Ω at 0 ℃ , -wire Rated system, current mA
Analog to 0mADC or to 5VDC
Output
signals
Pulse output
Uncorrected total flow
Static relay Capacity: 0VAC/0VDC 0.A
Pulse width: ms/50ms
Total flow corr. for
dens.
Output sync with flow
input signal
Open collector pulse
Analog output Temperature output
to 0mADC (Max. load resistance 500 Ω )
or to 5VDC (Output impedance 50 Ω )
Conversion accuracy: ± 0.% of F.S.
Display type
Display: ST display (8 × 8 dots), backlighted ( ※ ), ( ※ )
Information displayed: Data, units, error message simultaneously
Menu
items
Uncorr. total flow (Q)
Same as output pulse unit (l, etc.) Display capacity: 8 digits
Total flow corr. for
dens. (Q
μ f
)
Total flow corr. for dens.
and temp. (Q
μ f ρ
)
Temperature To the nd decimal place (when ℃ is selected.)
Set density ( ρ ) To the rd decimal place (when g/cm is selected.)
Set viscosity ( μ ) To thest decimal place (mPa ・ s is selected.)
Overall meter error To the th decimal place
Vol. conversion factor
To the th decimal place (Field labeled measurement unit: Oil kind)
Correction factor E To the th decimal place
Correction factor E
To the th decimal place
Frequency
To the th decimal place
Error alarm
Number of occurring error ＋ error message
Correc-
tion
range
Density Crude oil: 0.05 to .050 Fuel oil: 0.50 to .050 Lube oil: 0.8000 to .0
Temperature － 0 to +8 ℃ NOTE: Except the range not covered in JIS K -5.
Ref. temperature 5 ℃
Viscosity 0. to .cP (mPa ・ s )
Com-
puting
accuracy
Total flow corr. for
viscosity and temp.
± 0.05% or better
Temperature
Pt 00 Ω at 0 ℃ ± 0.% of span
to 0mADC or to 5VDC ± 0.% of span
IC card
Type Key card
Capacity SRAM K
Battery backup Lithium battery (Battery life: 5 years approx.)
Clock IC battery backup Lithium battery (Battery life: 0 years approx.)
Communication
Interface: RS85 Multipoint (Up to units can be connected.)
Dedicated protocol Baud rate: 800 bps standard 00 bps max.
Transmission cable
Use -conductor shielded cable to the resistance thermometer bulb.
Loop resist. 5 Ω max. Example: 00 meters max. with -conductor .5mm
cable; 500 meters with .0mm cable
Power source 85 to VAC, 50/0Hz or 0 to 0VDC
Power consumption 0W max.
Ambient temperature － 0 to ＋ 50 ° C
Mounting Panel mount
Finish Munsell N.5
Weight .5 kilograms, approx.
NOTES ( ※ ): ST display stands for Super Twisted Nematic display.
( ※ ): Backlight life (luminance declined to one half its original luminance) : 500 hours, approx.