UCL-200 - I.S. Ultrasonic Continuous Level T Ultrasonic Continuous

UCL-200 - I.S. Ultrasonic Continuous Level T Ultrasonic Continuous
Instruction Bulletin No. 197038
Rev A
UCL-200 - I.S.
Ultrasonic Continuous Level T
ransmitter
Transmitter
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 transducer. The sensor's electronics calculate the travel time the sound wave
requires and determines the distance between the transducer and the medium.
Specifications
Dimensions
750
Unacceptable
Range
500
0
12
Acceptable
Range
16
20
24
Supply Voltage (VDC)
28
4.9"
(124 mm)
NEMA 4X (IP65)
Polypropylene
PVDF
1/2" NPT
2" NPT
CSA Intrinsically Safe
4 or 20 mA
Electrical Loading Limits
250
3.6"
(91 mm)
32
100
6.3"
(163 mm)
2"
NPT
Maximum Temperature/Voltage Derating
Continuous 20 mA Curve
Unacceptable
Range
80
60
Acceptable
Range
40
20
0
12
16
20
24
28
Temperature/Pressure Derating
Operating Pressure (psi)
1,000
-40°F to 140°F
30 psi @ 25°C (See chart below)
12 to 32 VDC
4-20 mA (2-Wire)
6" to 216"
± 0.25% of span in air
0.125" (3 mm)
8° Conical
900 ohms @ 32 VDC (See chart)
Ambient Sensor Temperature (°C)
Max. Series Resistance (Ohms)
Operating Temperature
Operating Pressure
Input Voltage
Output
Range
Accuracy
Resolution
Beam Width
Deadband Max Loop Resistance
Enclosure Rating
Enclosure Material
Transducer Material
Conduit connection
Mounting
Approval
32
36
35
Unacceptable
Range
30
25
20
Acceptable
Range
15
10
05
00
-40
-20
00
20
40
Temperature (°C)
Operating Voltage (VDC)
Mounting
The unit must be mounted vertically above the process medium (liquid) to be
measured.
1. The maximum measurable distance is 216" (18 Ft.)
2. There is a "dead zone" less than 6" from the end of the transducer.
The transducer cannot meaure less than 6" from its tip. This dead
zone can also be set to a distance greater than 6".
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.
Important Notes
1. Avoid interference with the beam from the side of the tank and obstructions
in the tank.
2. Do not install the transducer at an angle.
3. The transducer will not operate in a vacuum.
4. The transducer will not operate properly with the presence of vapors or foam.
5. Do not thread more than 1-2 turns past hand-tight.
Depth Range
(In Feet)
Beam Radius
(In Inches)
1
2
4
6
8
10
12
14
16
18
1.2
2.1
3.7
5.4
7.1
8.8
10.4
12.1
13.8
15.5
D
R
60
Wiring (Non-Intrinsically Safe)
1. Remove junction box cap
2. Remove terminal block (pulls off)
3. Wire positive supply (12-32 VDC) to right screw
terminal (+) and negative to left terminal (-)
4. Reattach terminal block
5. Replace cover once calibration
is complete (See "Programming")
+12-32 VDC
+
-
Gems Sensors UCL-200
RL
Ultrasonic
Level Transmitter
Menu
Set
Wiring (Intrinsically Safe)
Non-Hazardous Area
Hazardous Area
ULS-200
Ultrasonic
Level Transmitter
Approved
I.S. Barrier
Vdc ≥ 32 V
Isc ≥ 130 mA
Ca = O
µF
Oµ
La = O
µH
Oµ
Vmax = 32 V
Imax = 130 mA
Ci = O
µF
Oµ
Li = O
µH
Oµ
Supply
With Gems Zener Barriers . . .
Intrinsically Safe
Part Number 201001
Hazardous
Area
Non-Hazardous
Area
3
2
1
Fuse
(+)
3
2
DC Power
Supply
Load
1
(-)
Signal
Return
Barrier
CSA-Approved Intrinsically Safe for use in Hazardous Locations: Class I, Groups A, B, C, and D - Class II, Groups E, F,
and G - Class III. intrinsically safe when used with an approved I.S. barrier(s). Entity parameters listed above.
Programming
Only the EC4 and EC20 values need to be set for operation. Setting the MAXR and MINR values is highly
recommended for more accurate operation. The ALIN mode is only used to determine signal strength, which
may be needed when mounting or for troubleshooting the transmitter.
A. Setting EC4 V
alue (This is the 4 mA setting which equates to the lowest measure point in the tank)
Value
1. Hold “MENU” key until “EC4” appears in the display
2. Wait until a value appears which will be the current measured level
3. Press the up or down arrow keys once to display the current EC4 value
4. Press the up or down arrow keys to change the EC4 value to your desired setting (the longer you hold
these buttons, the faster the value will change). 216" is the maximum measurable value.
5. Press “SET” key to lock in this value
6. The display will show “ENTER” to indicate the value is set and then “LEVEL” as it returns to measuring
the level.
B. Setting the EC20 V
alue (This is the 20 mA setting which will be the highest measure point in the tank)
Value
1. Hold “MENU” key until “EC20” appears in the display
2. Wait until a value appears which will be the current measured level
3. Press the up or down arrow keys once to display the current EC20 value
4. Press the up or down arrow keys to change the EC20 value to your desired setting (6" is the absolute min.
value, but 8" is the recommended min.)
5. Press “SET” key to lock in this value
C. Setting the Fail-Safe Mode (default setting is SAF1)
SAF1 = The output will go to 22 mA if the ultrasonic signal is lost
SAF2 = The output will go to 4 mA if the signal is lost
SAF3 = The output will hold the current (last measured value) if the signal is lost
1. Hold the “MENU” key until “SAFI”, SAF2" or “SAF3” appears in the display
2. Release the “MENU” key and hold the “SET” key to toggle from SAFI to SAF2 to SAF3
3. When the desired mode is reached, release the “SET” key to lock in that setting
D. Setting the MAXR V
alue (default setting is 216")
Value
This is the maximum range for the transmitter. The maximum measurable value for the transmitter is 216
inches. If your max measurement range will be less than that, the MAXR value should be set accordingly.
This will serve to let the electronics filter out any greater values; i.e., if your maximum tank height is 120",
then the MAXR value should be set to 120, as any greater measured values would be erroneous.
1. Hold “MENU” key until “MAXR” appears in the display
2. Continue to hold the “MENU” key until a value appears and then release. This is the current MAXR value
(default is 216).
3. Press the up or down arrow keys to change this value
4. Press “SET” key to lock in this new value
E. Setting the MINR V
alue (default setting is 8")
Value
This is the minimum range for the transmitter. The minimum measurable value for the transmitter is 6
inches from the end of the transmitter. It is recommended that the MINR value be set to no less than 8" to
leave some room between the measurement range and the dead zone (6" or less).
1. Hold “MENU” key until “MINR” appears in the display
2. Continue to hold the “MENU” key until a value appears and then release. This is the current MINR
value (default is 8).
3. Press the up or down arrow keys to change this value
4. Press “SET” key to lock in this new value
AST)
F. Setting the FAST/SLOW Mode (default is F
FAST)
This determines the averaging rate at which the signal is processed. The FAST mode is typical
and will have 2 signals per second and update once a second. The SLOW mode is generally used
in turbulent applications. The signal returns are averaged every 10 seconds in the SLOW mode.
1. Hold the “MENU” key until “FAST” or “SLOW" appears in the display
2. Release the “MENU” key and hold the “SET” key to switch between “FAST” and “SLOW’
modes
3. Release the “SET” key when the desired mode is displayed to lock in the setting.
G. Using the ALIN Mode (default is OFF)
The ALIN mode is used when mounting or troubleshooting the transmitter. When the transmitter is in the
ALIN mode, the signal return strength will be displayed in dB. This mode can be used when mounting the
transmitter to determine optimal alignment. It can also be used to check signal strength when
troubleshooting the transmitter.
1. Hold the “MENU" key until “ALIN” appears in the display
2. Continue to hold “MENU” until “OFF” appears in the display
3. Release the “MENU” key and hold the “SET” key to switch from “OFF” to “ON”
4. Release the “SET” key and the transmitter is now in the ALIN mode.
5. To exit the ALIN mode, repeat Steps 1 through 4 to switch from “ON” to “OFF”. The ALIN mode
must be turned off in order for the transmitter to start measuring level again and it will not turn of
offf by
itself like the other programming modes.
Factory Settings
EC4
EC20
SAF1/2/3
Fast/Slow
ALIN
MAXR
MINR
216"
8"
Saf1
Fast
N/A
216"
6"
To return to factory settings, remove power to the transducer for at least 10 seconds, then reapply power while
pressing the "Set" and "Menu" buttons.
To change the unit of measurement from inches to centimeters, remove power to the transmitter for at least 10
seconds, then reapply power while simultaneously pressing the "V" and "Set" buttons.
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.
Warranty
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 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.
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.
Tel: 860-793-4357
Fax: 860-793-4563
Important Points:
• Gems products must be maintained and installed in strict accordance 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 temperatures 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.
Gems Sensors Inc.
One Cowles Road
Plainville, CT 06062-1198
Toll-Free: 1-800-378-1600
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