Gems Sensors UCL-210 Training manual

Principle of OperationPrinciple of Operation
Principle of OperationPrinciple of Operation
Principle of Operation
An ultrasonic sound wave is transmitted from the base of the transducer. This
sound wave is reflected off the process medium and returned to the trans-
ducer. The sensor's electronics calculate the travel time the sound wave
requires and determines the distance between the transducer and the medium.
UCL-210UCL-210
UCL-210UCL-210
UCL-210
Ultrasonic Continuous Level TUltrasonic Continuous Level T
Ultrasonic Continuous Level TUltrasonic Continuous Level T
Ultrasonic Continuous Level Transmitterransmitter
ransmitterransmitter
ransmitter
(6' and 12' Fixed Ranges)(6' and 12' Fixed Ranges)
(6' and 12' Fixed Ranges)(6' and 12' Fixed Ranges)
(6' and 12' Fixed Ranges)
Instruction Bulletin No. 196822Instruction Bulletin No. 196822
Instruction Bulletin No. 196822Instruction Bulletin No. 196822
Instruction Bulletin No. 196822
DimensionsDimensions
DimensionsDimensions
Dimensions
Important NotesImportant Notes
Important NotesImportant Notes
Important Notes
1. Avoid interference with the beam from the side of the tank and obstructions1. Avoid interference with the beam from the side of the tank and obstructions
1. Avoid interference with the beam from the side of the tank and obstructions1. Avoid interference with the beam from the side of the tank and obstructions
1. Avoid interference with the beam from the side of the tank and obstructions
in the tank.in the tank.
in the tank.in the tank.
in the tank.
2. Do not install the transducer at an angle.2. Do not install the transducer at an angle.
2. Do not install the transducer at an angle.2. Do not install the transducer at an angle.
2. Do not install the transducer at an angle.
3. The transducer will not operate in a vacuum.3. The transducer will not operate in a vacuum.
3. The transducer will not operate in a vacuum.3. The transducer will not operate in a vacuum.
3. The transducer will not operate in a vacuum.
4. The transducer will not operate properly with the presence of vapors or foam.4. The transducer will not operate properly with the presence of vapors or foam.
4. The transducer will not operate properly with the presence of vapors or foam.4. The transducer will not operate properly with the presence of vapors or foam.
4. The transducer will not operate properly with the presence of vapors or foam.
5. Use proper sealant on threads.5. Use proper sealant on threads.
5. Use proper sealant on threads.5. Use proper sealant on threads.
5. Use proper sealant on threads.
6. Do not thread more than 1-2 turns past hand-tight.6. Do not thread more than 1-2 turns past hand-tight.
6. Do not thread more than 1-2 turns past hand-tight.6. Do not thread more than 1-2 turns past hand-tight.
6. Do not thread more than 1-2 turns past hand-tight.
The unit must be mounted vertically above the process medium (liquid) to be
measured.
1. The maximum measurable distance is 72" or 144"
2. There is a "dead zone" less than 6" or 3.6" from the end of the transducer.
The transducer cannot meaure less than 6" or 3.6" from its tip.
3. The transducer's ultrasonic signal is cone-shaped with an 8° beam
angle. Care must be taken to ensure that there are no obstructions
to the beam (wall of tank, ladder, etc.).
See diagrams.See diagrams.
See diagrams.See diagrams.
See diagrams.
MountingMounting
MountingMounting
Mounting
12 16 20 24 28 32 36 -40 -20 00 20 40 60 80
-40°F to 140°F
30 psi @ 25°C
(See chart below)(See chart below)
(See chart below)(See chart below)
(See chart below)
12 to 36 VDC
4-20 mA (2-Wire)
3.6" to 72" (6') - 6" to 144" (12')
± 0.25% of span in air
0.125" (3 mm)
8°Conical
600 Ohms @ 36 VDC
NEMA 4X (IP65)
Polypropylene
PVDF
1/2" NPT
3/4" NPT (6') - 2" NPT (12')
Operating Temperature
Operating Pressure
Input Voltage
Output
Range
Accuracy
Resolution
Beam Width
Max Loop Resistance
Enclosure Rating
Enclosure Material
Transducer Material
Conduit connection
Mounting
SpecificationsSpecifications
SpecificationsSpecifications
Specifications
Acceptable
Range
12 18 24 30 36
Unacceptable
Range
Max. Series Resistance (Ohms)Max. Series Resistance (Ohms) Max. Series Resistance (Ohms)Max. Series Resistance (Ohms)
Max. Series Resistance (Ohms)
4 or 20 mA4 or 20 mA
4 or 20 mA4 or 20 mA
4 or 20 mA
Sensor Electrical Loading LimitsSensor Electrical Loading Limits
Sensor Electrical Loading LimitsSensor Electrical Loading Limits
Sensor Electrical Loading Limits
2,000
1,000
500
1,500
0
Supply Voltage (VDC)Supply Voltage (VDC)
Supply Voltage (VDC)Supply Voltage (VDC)
Supply Voltage (VDC)
Maximum Temperature/Voltage DeratingMaximum Temperature/Voltage Derating
Maximum Temperature/Voltage DeratingMaximum Temperature/Voltage Derating
Maximum Temperature/Voltage Derating
Continuous 20 mA CurveContinuous 20 mA Curve
Continuous 20 mA CurveContinuous 20 mA Curve
Continuous 20 mA Curve
Acceptable
Range
100
60
40
80
0
Operating Voltage (VDC)Operating Voltage (VDC)
Operating Voltage (VDC)Operating Voltage (VDC)
Operating Voltage (VDC)
20
Unacceptable
Range
Ambient Sensor Temperature (°C)Ambient Sensor Temperature (°C) Ambient Sensor Temperature (°C)Ambient Sensor Temperature (°C)
Ambient Sensor Temperature (°C)
Unacceptable
Range
Temperature/Pressure DeratingTemperature/Pressure Derating
Temperature/Pressure DeratingTemperature/Pressure Derating
Temperature/Pressure Derating
Acceptable
Range
35
30
25
20
15
10
05
00
Operating Pressure (psi)Operating Pressure (psi) Operating Pressure (psi)Operating Pressure (psi)
Operating Pressure (psi)
Temperature (°C)Temperature (°C)
Temperature (°C)Temperature (°C)
Temperature (°C)
3.6"
(91 mm)
4.9"
(124 mm)
6.3"
(163 mm)
2"
NPT
Depth RangeDepth Range
Depth RangeDepth Range
Depth Range
(In Feet)(In Feet)
(In Feet)(In Feet)
(In Feet)
Beam RadiusBeam Radius
Beam RadiusBeam Radius
Beam Radius
(In Inches)(In Inches)
(In Inches)(In Inches)
(In Inches)
1
2
4
6
8
10
12
1.2
2.1
3.7
5.4
7.1
8.8
10.4
DD
DD
D
RR
RR
R
3/4"
NPT
1.125
28.6
0.7
17.8
↑
↓
↑
12'
Sensor
6'
Sensor

1. Remove junction box cap
2. Remove terminal block (pulls off)
3. Wire (through conduit port) positive supply (12 - 36 VDC)
to right screw terminal (+) and negative to left terminal (-)
4. Reattach terminal block
5. Replace cover
POWERPOWER
POWERPOWER
POWER
Gems SensorsGems Sensors
Gems SensorsGems Sensors
Gems Sensors
UltrasonicUltrasonic
UltrasonicUltrasonic
Ultrasonic
Level TransmitterLevel Transmitter
Level TransmitterLevel Transmitter
Level Transmitter
UCL-210UCL-210
UCL-210UCL-210
UCL-210
4-20mA4-20mA
4-20mA4-20mA
4-20mA
12 - 36 VDC (+)12 - 36 VDC (+) 12 - 36 VDC (+)12 - 36 VDC (+)
12 - 36 VDC (+)
GND (-)GND (-) GND (-)GND (-)
GND (-)
12 - 36 VDC12 - 36 VDC
12 - 36 VDC12 - 36 VDC
12 - 36 VDC
RLRL
RLRL
RL (-)(-)
(-)(-)
(-) (+)(+)
(+)(+)
(+)
OperationOperation
OperationOperation
Operation
The LED indicator labelled "POWER" should be on continuously during
normal operation. This indicates that the sensor has power and is func-
tioning. A flashing LED indicates that the device has gone into its fail-safe
mode. At this time, the output will increase to 22 mA. This condition is due
to the ultrasonic return signal being too weak.
Gems Sensors Inc.Gems Sensors Inc.
Gems Sensors Inc.Gems Sensors Inc.
Gems Sensors Inc.
One Cowles Road
Plainville, CT 06062-1198
Toll-Free: 1-800-378-1600
Return PolicyReturn Policy
Return PolicyReturn Policy
Return Policy
Returns are accepted on stock items up to 30 days from date of order. You must contact our Returns Department for a Return Authorization
(RA) number. Return the goods - freight prepaid - in the original container and include original packing slip. C. O. D. returns are not accepted.
Gems reserves the right to apply restocking charges.
TT
TT
Tel: [phone]el: 860-793-4357
el: 860-793-4357el: 860-793-4357
el: 860-793-4357
Fax: [phone]Fax: [phone]
Fax: [phone]Fax: [phone]
Fax: [phone]
Precautions are taken to ensure safe arrival of all shipments. Should you receive goods
damaged in transport, you must file a claim with the carrier within 90 days or the claim is
waived. Gems Sensors Inc. shall not be liable for any damage in case of late delivery or
lost shipments.
WW
WW
Warrantyarranty
arrantyarranty
arranty
Gems Sensors Inc., the seller, warrants its products to be free from defects in material and
workmanship in normal use and service for a period of one year from date of shipment.
Gems reserves the right and option to refund the purchase price in lieu of repair or
replacement upon evaluation of the returned original part. Modification, misuse, attempted
repair by others, improper installation or operation shall render this guarantee null and void.
Gems Sensors Inc. makes no warranty of merchantability or fitness for a part or purpose.
Limits of LiabilityLimits of Liability
Limits of LiabilityLimits of Liability
Limits of Liability
In no circumstances shall Gems Sensors Inc. be liable for special, consequential or
exemplary damages of any kind or character, including contract, tort, and strict liability in
tort and contract.
Equipment sold by Gems Sensors Inc. not intended for use in a nuclear installation, nor
shall it be used as a “Basic Component”as same as defined under Part 21, Title 10 of the
Code of Federal Regulations. In the event of such use, you agree to indemnify and hold us
harmless from any and all subsequent liabilities and responsibilities which might arise in
connection with such use.
DistanceDistance
DistanceDistance
Distance
InchesInches
InchesInches
Inches
3.6
6
12
18
24
30
36
42
48
54
60
66
72
78
84
90
96
102
108
114
120
126
132
138
144
Distance vs CurrentDistance vs Current
Distance vs CurrentDistance vs Current
Distance vs Current
Current mACurrent mA
Current mACurrent mA
Current mA
6 Ft Range6 Ft Range
6 Ft Range6 Ft Range
6 Ft Range
20
19.4
18
16.6
15.2
13.8
12.4
11
9.6
8.2
6.8
5.4
4
Current mACurrent mA
Current mACurrent mA
Current mA
12 Ft Range12 Ft Range
12 Ft Range12 Ft Range
12 Ft Range
20
19.3
18.6
17.9
17.2
16.5
15.8
15.1
14.4
13.7
13
12.3
11.7
11
10.3
9.6
8.9
8.2
7.5
6.8
6.1
5.4
4.7
4
• Gems products must be maintained and installed in strict accor-
dance with the National Electrical Code and the applicable Gems
product instruction Bulletin that covers installation, operation and
proper maintenance. Failure to observe this information may result
in serious injury or damages.
•The supply voltage to the sensor should not exceed 36 VDC, Max.
• Please adhere to the pressure and temperature limitations shown
throughout this catalog for our level and flow sensors. These
limitations must not be exceeded. These pressures and tempera-
tures take into consideration possible system surge pressures/
temperatures and their frequencies.
•Selection of materials for compatibility with the media is critical to
the life and operation of Gems products. Take care in the proper
selection of materials of construction, testing is required.
•Avoid overtightening when mounting
•Life expectancy of switch contacts varies with application. Contact
Gems if life cycle testing is required.
•Ambient temperature changes do affect switch set points, since the
gravity of a liquid can vary with temperature.
•Our sensors have been designed to resist shock and vibration.
However, shock and vibration should be minimized.
•Electrical entries and mounting points in an enclosed tank may
require liquid/vapor sealing.
•Our sensors must not be field-repaired.
•Physical damage sustained by product may render it unserviceable.
Important Points:Important Points:
Important Points:Important Points:
Important Points:
WiringWiring
WiringWiring
Wiring