Standard Specifications
2
IM 01G05B02-01E 1st Edition
Sound Velocity Measurement (Off-line):
Measures the sound velocity of unknown fluid starting
from its estimated sound velocity. The result can be
transferred to the current fluid parameter.
Wall Thickness Measurement (Off-line):
Measures the wall thickness of unknown pipe (material-
known) using optional wall thickness probe.
The result can be transferred to the current pipe
parameter.
Arithmetic Operation on Dual-Channel / Dual-Path
Inputs:
Arithmetic operations get the outcomes for calculation
channel Y and Z by taking sum, average, or difference
of two flow values from input channel A and B. Taking
absolute values of each input independently in the
calculation is also possible.
Note: Two sets of transducers are necessary.
Pulse Output (optional):
Available via optional binary outputs.
Pulse value: 0.01 to 1000 of totalization unit
Pulse width: 100 to 1000 ms (±20%)
Maximum output rate: 2pps (pulse/second) ±20%
Alarm Output (optional):
Available via optional binary outputs where each alarm
item is assigned one-to-one. Alarm properties are also
selectable for each alarm one-by-one.
Alarm items: High limit, Low limit, Flow direction
change, Quantity limit (for batch operation), and Error
(measurement impossible)
Alarm properties: Normal open / Normal close, Non-
hold / Hold (at the alarm detection)
Output Signal Configuration:
Freely configurable including independent dual flow
value outputs.
Current / frequency outputs: Flow velocity, Volume
flow, Mass flow, Sound velocity, or Signal amplitude
Binary outputs: Pulse or Alarm
Data Logging Function:
Data storage capacity of 27,000 values (standard) or
100,000 values (optional).
Storage rate is selectable from 1 s, 10 s, 1 min, 10 min,
30 min, 1 h, or any other rate between 1 s to 43200 s
(12 h) by the second. For each period of measurement,
stored values are grouped by a user-defined measuring
point name.
Stored values can be transferred to a personal
computer via RS232 serial communication port.
Communication Function:
Transfers the measured values to a personal computer
or a serial printer. Both on-line/off-line transfer
during/after the measurement available.
Output item: Flow value (flow velocity, volume flow,
or mass flow), Totalization (forward, reverse), Sound
velocity, Signal amplitude
Output format setting: Spacing (for printer), Decimal
point character, Data delimiter
Communication interface: RS232
Communication port: D-sub 9-pin, male
Time-Programmable Measurement Function:
Automatic start / stop of the measurement without
human operation using internal clock for specific
systems. Can be used with current output, binary output,
data logging function, and/or communication function
for recording the measurement.
Site Parameters Storage Function:
Eliminates the necessity of re-entering parameters for
additional measurement on a site.
Totally 80 sets of site parameters for pipe/fluid settings
are available with user-defined site names.
Additionally, 14 sets of separate site parameters for not
only pipe/fluid but also output-options setting in sets
available.
Material / Fluid List Customization Function:
The lists of material / fluid in the parameter menu are
editable. Unnecessary items can be cut off from the
menu for user’s convenience. Registration of new
material / fluid data is also possible totally up to 13
items with user-defined names.
Power Supply:
Power supply system:
Built-in rechargeable battery (6V/4Ah)
Power supply adapter (Input: 100 to 240VAC,
50/60 Hz, works also as battery charger)
Battery operating time (with full charge):
Maximum around 10 hour continuous measurement
at room temperature (20°C / 68°F)
Power consumption: Less than 15W
Safety and EMC Standard:
General safety: EN61010-1:2010
EN61010-2-030:2010
Altitude at installation site:
Max. 2000 m above sea level
Overvoltage category:
Overvoltage category II
Pollution degree:
Pollution degree 2
EMC regulation: EN61326-1:2006
Operating Conditions:
Ambient temperature:
–10 to +60°C (14 to 140°F)
Ambient humidity: 0 to 95% RH or less (Non-condensation)
(Note) Lengthy operation at 80% or more is not
recommended.
Transducers
Basic Construction:
A set of transducers are composed of a pair of sensor
elements (often called just as “transducers”), and
transducer cables with a connector at one end, which is
to be inserted into the measuring input sockets in the
front panel of US300PM main unit. The transducer
cables are armed with stainless steel flexible tube.
(Note) Fixing hardware (mounting fixtures, chains) and
acoustic couplant are usually included in a set of
transduces, specified in its model code by their kinds
or with/without.
Material:
Case of sensor elements:
Stainless steel EN/DIN 1.4571
(JIS SUS 316Ti, AISI 316Ti SS equivalent)
Sensing surface of sensor elements:
General temperature type: PEEK (Poly Ether Ether Keton)
High temperature type: Polyimid
