LRF-3000P Ultrasonic flowmeter
- 33 -
Cool Rate
Display cool total
Transient cool total and temperature - auto switching
and display (6s)
Only display inlet temperature and temperature
difference
Press ENTER to stop switching and continuously
update
Display the current items; Press ENTER again to
restore switching.
Note:
Only energy meter is provided with this function.
M03
Cool
*R
100.2
KW
123.4
E+0
GJ
M03
Cool
*R
30.0
-2.0
（℃）
123.4
E+0
GJ
M04
Measurement Status
Display upstream/downstream signal intensity and
quality. Signal intensity is expressed by digits from
00.0 to 99.9. 00.0 indicates no signals are received;
99.9 indicates the maximum signal intensity.
Generally, the bigger the digit, the stronger the signal
intensity; the stronger the signal intensity, the stabler
the measurement theoretically.
Signal intensity of upstream/downstream transducer
should be >75 to ensure normal operation of the
flowmeter.
M04
Status
*R
Signal
Sound
Time
UP
DN
Q
80.0
80.1
85
Display the sound velocity and display the actual
sound velocity measured by the flowmeter. Under
normal conditions, it should be close to the sound
velocity shown in M12 menu. If the difference is too
big, you should check the installation settings and
whether it is properly installed or not.
M04
Status
*R
Signal
Sound
Time
Vel.
1482
m/s
Ratio
100%
Transmission Time
Display the average transmission time of ultrasound
measured (Unit: us) and upstream/downstream
transmission time difference (Unit: ns). The two
readings are the main basis for the flowmeter to
M04
Status
*R
Signal
Sound
Time
Total
185.0
us
