Welcome to Philemon Instrument
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Open Channel ultrasonic flow meter is designed to measure the fluid velocity and flow of liquid of river, channel, lake or other opened water areas.
The ULFM series is a remote version ultrasonic open channel flow meters (O.C.M.). It consists of two elements, a wall mounted host, which has a display and an integral keypad for programming, and a probe, which must be mounted directly above the surface to be monitored. Both of the host and the probe are plastic leak-proof structure.
The ULFM series OCM can be widely applied to the environmental protection, water treatment, irrigation, chemical, and other industries.
|
Type |
ULFM (host) |
|
Power supply |
DC24V (±5%) 0.2A; AC220V (±20%) 0.1A |
|
Display |
2 lines 14 digit backlit LCD |
|
The instantaneous flow rate range |
0.0000~99999L/S or m3/h |
|
The maximum of cumulative flow |
9999999.9 m3/h |
|
Accuracy of change in level |
1mm or 0.2% of measured distance from the probe at still water. (whichever is greater) |
|
Resolution |
1mm |
|
Analogue output |
4-20mA into 500 Ohms, corresponding to instantaneous flow rate. |
|
Relays outputs |
6 multi-function SPDT relays at most (optional), rated 5A /250VAC/30VDC, high, low and failsafe alarm and control corresponding to instantaneous flow rate or level. |
|
Serial communication |
RS485, MODBUS-RTU standard protocol |
|
Ambient temperature |
-40℃~70℃ |
|
Temperature compensation |
Integral in probe |
|
Pressure range |
±0.1MP (press definitely) |
|
Measure cycle |
1 second (changeable ) |
|
Parameter setting |
3 induction buttons / remote control |
|
Cable gland |
PG9 /PG11/ PG13.5 |
|
Material |
ABS |
|
Protect grade |
IP67 |
|
Fix |
Hang |
|
Dimensions |
248H*184W*122D(mm) |
The probe
|
Type |
LB-4 (probe) |
|
Range |
0.00-4.00m |
|
Blind zone |
0.20m |
|
Ambient temperature |
-40℃~70℃ |
|
Temperature compensation |
Integral in probe |
|
Pressure range |
0.2MPa |
|
Beam angle |
10 (3db) |
|
Cable length |
10m standard (can be extended to 1000m) |
|
Material |
ABS, PVC or PTFE (optional) |
|
Protect grade |
IP68 |
|
Fix |
Screw (G2) or flange (DN65/DN80/etc.) |
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