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GENERAL DESCRIPTION
The Optical Sensor Switch is a non-invasive means for detection of a HI or LOW
fl ow. This sensor is ideal for signaling an alarm, cutoff valve, or other device when
the fl oat passes the detector (alarm, valve, etc. are not included). The Optical Sen-
sor Switch helps protect processes and equipment from damage caused by ex-
treme fl ow rates.
Its compact design and ease of operation make it a non-obtrusive, simple to use
addition to your fl ow meter. Perfect for OEM applications, use whenever maxi-
mum or minimum fl ow levels need to be monitored automatically. It also can be
used in conjunction with a control relay to power alternate equipment or monitoring
devices.
PRINCIPLE OF OPERATION
A self-contained miniature photoelectric sensor (Thrubeam type) consisting of a
transmitter and receiver are mounted at opposite sides of the fl ow tube on a solid
carrier. The fl oat inside the fl ow tube is detected as it passes across the beam of
light. The sensor can be used to detect the fl oat passage beyond the setpoint of the
sensor and can also be set to monitor the fl oat position at a specifi c level, signaling
when the fl oat is outside of the range of the sensor light beam.
TO ORDER A FLOW METER WITH OPTICAL SENSOR SWITCHES
NOTE:
Used in conjunction with P, S and T Style Flow Meters.
NOTE:
To order a fl ow meter with a single Optical Sensor Switch add
“O1-” to P, S, or T Model Numbers. Example: O1-P11A4-BA0-032-41-ST-VN.
ORDERING INFORMATION FOR OPTICAL SENSOR SWITCH ACCESSORY
PART NUMBER
DESCRIPTION
OSV1-6-P
Optical Sensor Switch for 65mm P Style Meters
OSV1-1-P
Optical Sensor Switch for 150mm P Style Meters
OSV1-6-S
Optical Sensor Switch for 65mm S Style Meters
OSV1-1-S
Optical Sensor Switch for 150mm S Style Meters
OSV1-6-T
Optical Sensor Switch for 65mm T Style Meter
OSV1-1-T
Optical Sensor Switch for 150mm T Style Meter
