Kobold OPT-Y24896/0001 User manual

Operating Instructions
for
Optical Level Sensor
OPT-Y24896/0001
OPT-Y24896/0002

OPT
Page 2 OPT-Y K05/1022
1. Contents
1.Contents ........................................................................................................ 2
2.Note .............................................................................................................. 3
3.Instrument Inspection .................................................................................... 3
4.Regulation Use ............................................................................................. 3
5.Operating Principle ........................................................................................ 4
6.Mechanical Connection ................................................................................. 5
6.1Process Connection G ½ (OPT-…) ..................................................... 5
7.Electrical Connection .................................................................................... 6
7.1General Information ............................................................................. 6
7.2Terminal Connection Diagrams ........................................................... 6
8.Technical Information .................................................................................... 7
9.Order Codes ................................................................................................. 8
10.Dimensions ................................................................................................... 9
11.Disposal ...................................................................................................... 10
12.EU Declaration of Conformance ................................................................. 11
13.UK Declaration of Conformity ...................................................................... 12
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim, Germany
Tel.: [phone]
Fax: [phone]
E-mail: [email protected]
Internet: www.kobold.com

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2. Note
Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instructions precisely as described herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you
have purchased. If you need an instruction manual that corresponds to the
purchased product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by
post in paper form against an applicable postage fee.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and in accordance with local regulations
applying to Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfil the EC-machine guidelines.
3. Instrument Inspection
All Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
 Optical Level Sensor model: OPT-Y24896/0001 / OPT-Y24896/0002
4. Regulation Use
Any use of the Optical Level Sensor, model: OPT, which exceeds the
manufacturers specification may invalidate its warranty. Therefore, any resulting
damage is not the responsibility of the manufacturer. The user assumes all risk
for such usage.

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5. Operating Principle
The optical level sensors of model OPT have been developed for monitoring
transparent liquids. Due to the very small dimensions, very slight switching
hysteresis and high repeatability, the instruments are also suited for service in
small vessels. The optical sensor is situated in a robust housing. It comprises a
plastic hollow hemisphere, in which the infrared diode is fitted as a transmitter
and a semiconductor as a receiver. When the sensor is not wetted by liquid, the
infrared light is reflected fully from the surface of the hemisphere to the receiver.
As soon as the sensor is covered with liquid, the refractive index on the boundary
layer changes and most of the light escapes into the liquid. Less light then
reaches the receiver, which allows switching to take place. The level probe
should not be fitted with the sensor pointing downwards, as errors can occur due
to drops of liquid sticking to it.

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6. Mechanical Connection
Before installation:
Make sure that the maximum operating pressures and temperatures allowed for
this device are not exceeded (see 8. Technical Information).
Avoid mounting the Optical Level Sensor vertically downward from the top of the
container cover. In this position, drops accumulating on the optical sensor can
cause the sensor to report an apparent, false, simulated level (switching point
reached).
Recommended mounting positions:
 On the side wall of the tank
 Vertically upward on the bottom of the tank
6.1 Process Connection G ½ (OPT-…)
OPT-..
.
27
14
G 1/2
AF 22
Cable 1,5/2,5 m
Seal the device in the side of the container with Teflon tape or similar sealant.

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7. Electrical Connection
7.1 General Information
Attention! Make sure that the voltage values of your system
correspond with the voltage values of the measuring unit.
Make sure that the supply wires are de-energised.
7.2 Terminal Connection Diagrams

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8. Technical Information
Operating temperature: -20 to +80 °C
Operating pressure: max. 10 bar
Protection: IP 68
Material:
Housing: OPT-_2_ _: St. steel (1.4301)
Sensor: Polysulfone
Cable: special cable according part no. 820.102
3-wire, black
non-halogen and flame-retardant materials with
little smoke gas emission and toxicity
O-ring: OPT-_2_ _: FPM
Electrical data
Repeatability: ±1 mm
Hysteresis: ±1 mm
Response time: 50 µsec (with rising level)
1 sec (with falling level)
depending on viscosity
Power supply: 24 VDC ± 15 %
Current input: 17 mA typ. at. 24 VDC (without load)
Output: PNP, Open Collector,
function N/O contact (WET on)
Current output: 200 mA, short-circuit-proof

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9. Order Codes
Example: OPT-…
Model Version Cable length
OPT-
Y24896/0001 1.5 m
Y24896/0002 2.5 m

OPT
OPT-Y K05/1022 Page 9
10. Dimensions
OPT-..
.
27
14
G 1/2
AF 22
Cable 1,5/2,5 m

OPT
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11. Disposal
Note!
 Avoid environmental damage caused by media-contaminated parts
 Dispose of the device and packaging in an environmentally friendly
manner
 Comply with applicable national and international disposal regulations
and environmental regulations.
Batteries
Batteries containing pollutants are marked with a sign consisting of a crossed-out
garbage can and the chemical symbol (Cd, Hg, Li or Pb) of the heavy metal that
is decisive for the classification as containing pollutants:
Cd1 Hg2 Pb3 Li4
1. „Cd" stands for cadmium
2. „Hg" stands for mercury
3. „Pb" stands for lead
4. „Li" stands for lithium
Electrical and electronic equipment