YOKOGAWA US300PM User Manual
Manual Change for IM 01G05B02-01E 1st Edition
: No.15-021-E Nov. 24 2015-00
Attention!
The instrument must not be used in a corrosive atmosphere.
Attention!
The current outputs may temporarily turn unstable during the switch-on sequence and
parameter display / setting mode. Take care of your process not to be affected by this
behavior.
User’s
Manual
US300PM
Ultrasonic Flowmeter
Manual Change
No. 15-021-E
This is the supplement for the original manual (No. IM 01G05B02-01E, 1st Edition) regarding the added and changed
items as below. Please also refer to this supplement when you read the manual.
Addition to the chapter “2. Handling Precautions” (page 7) :
Changes to the section “2.1 Scope of Delivery” (page 7) and the section “3.4.2 Rear Panel” (page 13):
Change the figure of a nameplate to as below.
Addition to the section “2.3 General Precautions” (page 8) :
・The power supply adapter and the AC cable are dedicated to US300PM. Please do not use them with other
devices.
・Do not disassemble or remodel.
Addition to the chapter “4. Getting Started” (page 15) :
Manual Change for IM 01G05B02-01E 1st Edition
: No.15-021-E Nov. 24 2015-00
RESET
INIT
BRK
ENTER
[Operation during the measurement or menu display]
RESET: Press these three keys simultaneously to recover from an error. This has
the same effect as restarting the unit. Data will not be affected.
INIT (cold start): Press these three keys simultaneously and release ENTER first.
After acknowledging the display of main menu, release (i) BRK key first
and then (ii) C key. This will initialize the instrument. Most parameters and
settings are reset to the factory default values. The memory will not be
cleared.
Note that when the data logging function is activated, the DELETE
MEAS.VAL. display will appear instead of main menu. In this case, after
releasing (i) BRK key first and then (ii) C key, select NO or YES and then
press ENTER to finish the procedure.
ON
INI
T
BRK
[Operation when powering the instrument on]
INIT (coldstart): Pressing these two keys simultaneously and after acknowledging the display
of main menu, release (i) BRK first and then (ii) C. This will initialize the instrument.
Most parameters and settings are reset to the factory default values.
The same procedure is required as above when the DELETE MEAS.VAL. display
appears.
A:Reflection Mod
no >YES<
Attention!
When using mounting fixtures, there may arise some air gap between the transducer
surface and pipe wall because of any distortion of the pipe wall. Make sure to avoid
having such air gap between them.
Addition to the section “4.2.1 Key Operations” (page 16) and related pages :
Refer to the following table for the function of corresponding key operations.
The correct explanations for these key operations in the related pages are also as the table below.
Related pages: “16.2 US300PM doesn’t react anymore” (page 113)
Addition to the section “5.6 Selection of the Sound Path Factor” (page 30) :
When you select “auto” for “Sound Path” described at the section “11.2 Settings for Dialogues and Menus”, the
setting for the sound path factor will be automatic. In this case, “Reflection Mod” display will appear and you
can select either “Diagonal Mode” by “no” or “Reflection Mode” by “yes”.
When the pipe outer diameter is more than 600mm, the sound path factor as “1” (one) is recommended.
Otherwise, the measurement may become unstable when flow velocity or fluid temperature changed.
Addition to the section “5.7.2 Mounting of the Transducers” (page 31) :
The pipe wall thickness may slightly vary from part to part. Check it in advance by applying a wall thickness
probe or some other ways and avoid mounting the transducers on such parts.
Addition to the section “5.7.2.4 Mounting with Fixtures” (page 32) :
Manual Change for IM 01G05B02-01E 1st Edition
: No.15-021-E Nov. 24 2015-00
Attention!
In case of mass flow, select “Other Medium” as a measured fluid. When “Other Medium”
has been selected, US300PM requests to enter the density which is used to calculate
mass flow.
To reset the two flow totalizers to zero:
Press key
ON
O
three times when a totalizer is displayed.
To deactivate flow totalizing:
Press key
OFF
O
three times when a totalizer is displayed.
Sound Path
auto >USER<
Attention!
It is necessary to activate flow totalizers by pressing key
ON
O
to get the actual pulse
output. Refer to the section 7.2 for flow totalizers.
Addition to the section “6.1 Selection of the Physical Quantity and of the Unit of Measurement” (page 37) :
Changes to the section “7.2 Flow Totalizers” (page 41) :
Two of the key operations have been changed as below.
Addition to the section “11.2 Settings for Dialogues and Menus” (page 72) :
“Sound Path” setting appears next to “Meas.Point No.” and you can select “auto” or “user”. When you select
“auto”, the setting for the sound path factor will be automatic.
Changes to the section “11.6 Charging the Battery” (page 77) :
Change “The chargeable NiCd-batteries guarantee an operating time of approximately 14 hours.”
to “The chargeable NiCd-batteries guarantee an operating time of approximately 10 hours at room temperature
(20°C / 68°F), with full charge.”
Addition to the section “15.5 Activation of a Pulse Output” (page 101) :
Maximum pulse output rate is 2 pulse per second (+/-20%).
Set the “Pulse Value” and the “Pulse Width” so that the actual maximum flow in the pipe is less than half
the displayed value (“Max – Value”).
Example:
The actual maximum flow 120m3/h
Pulse Value = 0.02m3
Pulse Width = 150ms
INFO: Max – Value
240.0m3/h
Changes to the chapter “A Standard Specification” (page 117 to 124) :
Please use the following sheets for this chapter.
Standard Specifications
A Standard Specifications
US300PM
General
Fluid:
Liquid (Turbidity < 10,000 mg/L, Sound velocity 800 to
3,500 m/s, Temperature –30 to +200°C / –22 to +392°F)
Measured Quantities:
Volume flow, mass flow (by setting density), flow
velocity, sound velocity in the fluid
Wall thickness of the pipe (available when optional
wall thickness probe is provided)
Measuring Principal:
Transit time method using ultrasonic signal
Pipe Sizes:
25 to 6,500 mm (1 to 255 inches)
(covered by three types of transducers)
Pipe and Lining Materials:
Carbon steel, Stainless steel, Grey cast iron, Ductile
iron, Copper, Glass, PVC, etc
Flow Velocity Range:
±0.01 to ±25 m/s (±0.033 to ±82 ft/s)
Resolution:
0.025 cm/s (0.01 in/s)
Repeatability:
0.15% of reading ±0.01 m/s (0.033 ft/s)
Accuracy:
(Note) Under fully developed rotationally symmetrical flow
profile
Volumetric flow:
±1 to 3% of reading ±0.01 m/s (0.033 ft/s)
depending on pipe geometry and accuracy of
entered pipe dimensions.
Flow velocity:
±0.5% of reading ±0.01 m/s (0.033 ft/s) over
sonic path
Measuring Cycle:
100 to 1000 Hz (per one channel)
Straight Pipe Run in the Upstream:
10 to 50 pipe diameters, depending on the kind of flow
disturbances
Ultrasonic Flowmeter, Main Unit
Housing Material:
Aluminum
Painting:
Powder coating
Dust and Water-proof:
IP54 (EN60529)
Measuring Input (flow / wall-thickness):
Two as standard (Channel A, Channel B). Both flow
transducers and a wall thickness probe can be
connected freely to whichever channel.
Current Output:
None (standard), one, or two (optional)
Range 4 to 20 mA (Load resistance 0 to 500 Ω)
Note: The current outputs may temporarily turn unstable
during the switch-on sequence and parameter display
/ setting mode. Take care of your process not to be
affected by this behavior.
Frequency Output:
None (standard), or one (optional)
Range 0 to 1 kHz
Contact type: Open-collector, 24 V / 4 mA
Binary Output:
None (standard), one, or two (optional)
Contact type: Open-collector, 24 V / 4 mA
Input / Output Terminal Configuration:
Round socket connectors for flow and wall-thickness
measuring inputs on the front panel. Banana plug jacks
(+,–) for current, frequency, and binary outputs in the
rear panel.
LCD Display:
2 line x 16 character LCD display with backlight that can
be switched on/off.
Configurable to display two measured values (e.g., flow
rate and total flow) simultaneously, or to display values
from dual input channels alternately.
LED Lamp:
SIGNAL Lamp (green/red):
Indicates input signal status with green/red light,
equipped for each channel.
BATTERY Lamp (red):
Indicates battery charging status with red light.
Keyboard:
15 keys (numerical, functional, or both) including four
arrow-shaped keys for cursor operation, enabling easy
access through its interactive menu structure.
Display Language:
Czech, Danish, Dutch, English (default), French,
German, Norwegian, Polish, Turkey
Flow Measurement:
Flow velocity, Volume flow, Mass flow
Sound Velocity / Signal Amplitude Measurement (Online):
Sound velocity and signal amplitude in the fluid
available on-line simultaneously with flow
measurement.
Totalization Function:
Totalizes the volume flow or mass flow. Ten-digit
number for both forward/reverse directions of each
channel.
Damping Function:
Time constant 0 to 100 seconds, moving average.
IM 01G05B02-01E 1st Edition 1
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