B-144-12-E
8
3. GENERAL DESCRIPTION
Ultra Oval has been developed to meet the needs of precise flowrate measurement. The local direct-
reading total counter is an all-electronic register built around a single-chip CPU. With latest electronic
technologies used throughout, this versatile register displays accumulated total flow, instantaneous
flowrate (digital readout) and provides, by option, a pulse and analog output proportional to the rate of
flow.
In this meter, fluid flow is detected by sensing with an amorphous sensor the magnetic fields of permanent
magnets embedded in the oval rotors. As a result, high reliability is achieved.
Features
(1) Absence of any mechanically sliding components except for Oval rotors contributes to long
service life.
(2) Small wetted parts count and pocketless design makes this meter ideally suited for flow
measurement of chemical liquids.
(3) You can monitor accumulated total flow and instantaneous flowrate locally on the digital display.
(4) When coupled with a remotely located receiving instrument, output signals can simply be used for
control, adjustment, recording, etc.
(5) Explosionproof construction offers increased safety.
(6) A nonvolatile memory retains parameters and variables in cases of power suspension and external
power interruption.
(7) Low battery alarm is among its many alarm displays.
NOTE:
See Section 9.4 on page 17.
SERVICE NOTE: With the use over an extended period of time, meter error will deviate more or
less from the initial point. Upon request, we may conduct an instrumental error
testing once again and establish a "new meter factor" in the scaler when your
Ultra Oval is returned to the factory for periodic inspection or for other reasons.
4. PART NAMES
Mode Switch
LCD Counter
Reset Switch
Selector Magnet
Power Cable
Entrance G1/2
Optional Cable
Lead-in (pressure-
tight packing)
[provided for ex,
type with remote output]
Front Cover
Meter Body
Flow Direction Arrow
Frange
Cooling Tube
(or heating tube)
Register
(Battery pack
incorporated)
Po
we
r
Si
gn
al
