TEK-TROL IM-4800B TEK-SUB 4800B Submersible Level Transmitter Instruction Manual
- June 6, 2024
- TEK-TROL
Table of Contents
TEK-TROL IM-4800B TEK-SUB 4800B Submersible Level Transmitter
Safety Instructions
Intended Use
The Tek-Sub 4800B Submersible Level Transmitter is used to calculate the level of liquid in a tank by measuring the hydrostatic pressure in the tank.
Safety Instructions from the Manufacturer
Disclaimer
The manufacturer will not be held accountable for any damage that happens by using its product, including, but not limited to direct, indirect, or incidental and consequential damages.
Any product purchased from the manufacturer is warranted in accordance with the relevant product documentation and Terms and Conditions of Sale.
The manufacturer has the right to modify the content of this document, including the disclaimer, at any time for any reason without prior notice, and will not be answerable in any way for the possible consequence of such changes.
Product Liability and Warranty
The operator shall bear authority for the suitability of the device for the specific application. The manufacturer accepts no liability for the consequences of misuse by the operator. Wrong installation or operation of the devices(systems)will cause the warranty to be void. The respective Terms and Conditions of Sale, which forms the basis for the sales contract shall also apply.
Information Concerning the Documentation
To prevent any injury to the operator or damage to the device, it is essential to read the information in this document and the applicable national standard safety instructions. This operation manual contains all the information that is required in various stages, such as product identification, incoming acceptance and storage, mounting, connection, operation and commissioning, troubleshooting, maintenance, and disposal.
Safety Precautions
You must read these instructions carefully prior to installing and commissioning the device. These instructions are an important part of the product and must be kept for future reference. Only by observing these instructions, optimum protection of both personnel and the environment, as well as safe and fault-free operation of the device can be ensured.
For additional information that is not discussed in this manual, contact the manufacturer.
Warnings and Symbols Used
The following safety symbol marks are used in this operation manual and on the
instrument.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could
result in serious injury or death.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result
in minor or moderate injury. It may also be used to alert against unsafe
practices.
NOTE
Indicates that operating the hardware or software in this manner may damage it
or lead to system failure.
Packaging, Transportation and Storage
Packaging
The original manufacturer’s package consists of
- Tek-Sub 4800B Submersible Level Transmitter
- Documentation
Transportation
- Avoid impact shocks to the device and prevent it from getting wet during transportation.
- Verify local safety regulations, directives, and company procedures with respect to hoisting, rigging, and transportation of heavy equipment.
- Transport the product to the installation site using the original manufacturer’s packing whenever possible.
Nameplate
The nameplate lists the order number and other important information, such
as design details and technical data.
NOTE
Check the device nameplate to ensure that the device is delivered according to
your order. Check for the correct supply voltage printed on the nameplate.
Product Description
This section covers the reference and specification data, as well as the ordering information.
Introduction
The Tek-Sub 4800B Submersible Level Transmitter is a high-performance level transmitter specially designed for measuring the level of liquids and slurries. The transmitter has a highly accurate silicon piezoresistive pressure sensor as a sensing element. It is capable of continuously sensing and measuring liquid level with high precision.
Tek-Trol’s Submersible Level Transmitters have several level ranges, output options, and custom cable lengths, ensuring a perfect fit for new or existing installations. They are frequently used with a SCADA, PLC, or compatible display/control system for liquid level indication or control.
Measuring Principle
The Tek-Sub 4800B Submersible Level Transmitter consists of a sensor attached to a long cable, which is lowered to the bottom of a tank or well. The sensor operates by measuring the hydrostatic pressure of the liquid. Hydrostatic pressure (or head pressure) is the pressure exerted by the liquid in the tank or well. The hydrostatic pressure measured by the sensor is determined by two parameters: the density and height of the liquid. With liquid density remaining constant, changes in hydrostatic pressure necessarily reflect a difference in liquid level.
Operation
Typical Tek-Sub 4800B Submersible Level Transmitter application.
The pressure at the bottom of the tank is related to the height of the liquid. This pressure is called hydrostatic pressure or head pressure. Typical units for measurement of hydrostatic pressure are inches, feet, or meters of water column. In a water column, the hydrostatic pressure of 27.7″ w.c. is approximately equivalent of 1 PSI. The volume of water or shape of the tank or vessel does not affect the hydrostatic head pressure as it is height of water that affects the pressure. Whether it is in a large water tank or a small bucket of water, the hydrostatic pressure of 27.7″ w.c. is the same.
Modern PLC’s and HMI’s can calculate the liquid level of a tank by entering the geometry of the tank and the specific gravity of the liquid.
Technical Specification
| 5 psig to 20 psig (3.5 mH2O to 14 mH2O), Other ranges available | |
|---|---|
| Pressure type | Gauge (Vented) |
| Over pressure | 150% of Span |
| Accuracy | ±0.5% FS |
| Temperature coefficient-zero | ±0.75% FS (typ.), ±1.5% FS (max.) Over |
compensated temperature range
Temperature coefficient-span| ±0.75% FS (typ.), ±1.5% FS (max.) Over
compensated temperature range
Long term stability| ±0.2% FS/year (typ.), ±0.3% FS/year (max.)
Output signal| 4-20 mA, RS-485, 0.5-4.5 VDC
Power supply (Vs)| 12 to 36 VDC
Load resistance (RL)| RL<(Vs-12)/0.02A
Vibration| 10g-force (20-2000 Hz)
Shock| 100g-force (10 ms)
Cycles| 10×10⁶ cycles
Insulation resistance| 100 MΩ/50 VDC
Compensated temperature range| 32 °F to 140 °F (0 °C to 60 °C)
Storage temperature range| -40 °F to 257 °F (-40 °C to 125 °C)
Housing| 304 SS
Cable| PTFE or Polyurethane
Diaphragm| 316L SS
Protection| IP68
Seal ring| Viton
Oil filling| Silicone oil
Weight| 0.9 lbs (408 g)
Dimensional Drawings
Model Chart
Example| Tek-Sub 4800B| 05| 42| 05| P14| Tek-
Sub 4800B-05-42-05-P14
---|---|---|---|---|---|---
Series| Tek-Sub 4800B| | | | | Submersible Level Transmitter
| | 05| | | | 5 psig (3.5 meters H2O)
Range| 10| 10 psig (7 meters H2O)
Options| 15| 15 psig (10.5 meters H2O)
| 20| 20 psig (14 meters H2O)
Output| | | 42| | | 4-20mA
| 43| 4-20mA, HART
| 45| 0.5 – 4.5VDC
| 48| Low-Voltage Modbus (5 VDC)
| 49| Modbus RS-485
Accuracy| | | | 05| | 0.5% FS
| | | | | P14| 40 Feet of Polyurethane Cable
| P20| 60 Feet of Polyurethane Cable
Cable Length| P34| 100 Feet of Polyurethane Cable
and Type| T14| 40 Feet of PTFE Cable
| T20| 60 Feet of PTFE Cable
| T34| 100 Feet of PTFE Cable
Installation
This section covers instructions on installation and commissioning. Installation of the device must be carried out by trained; qualified specialists authorized to perform such work.
CAUTION
- Installation must comply with local installation requirements and local electrical code.
- Do not switch on the power supply to the transmitter while installing it. It may cause injury to the operating personnel
- Prevent mud and sand from accumulating on the sensor probe. Otherwise, the transmitter would be damaged.
Considerations to be taken before Installation
Before installation make sure that:
- The static pressure produced by the liquid at the installation site does not exceed the transmitter’s FS range.
- The measuring liquid is compatible with the transmitter’s construction material.
- While mounting the transmitter, avoid areas subject to electrical noise, excessive vibrations, and radiant heat.
Installation Methods
Tek-Sub 4800B is suitable for both static as well as flowing liquid level measurement applications.
- Ensure that the measuring liquid is compatible with the transmitter’s construction material.
- Insert the transmitter vertically down in the measurement container.
- Ensure that the transmitter is completely immersed in the liquid for maximum accuracy.
- Ensure the protection cap holes are not blocked due to suspended particles in the measuring liquid.
Installation in the Static Liquid
shows the installation method used in case of static liquid
Place the transmitter away
from liquid resource to avoid effects of vibration and pressure influence. A
stilling well is recommended for the best results.
Installation in a Flowing liquid
shows the installation method used in case of flowing liquid. For example,
reservoir area, river channel.
A stilling well is
recommended when there is a flowing liquid. A stilling well will dampen
disruptions and provide a steady level for an accurate measurement.
Electrical Connections
This section provides general information on the electrical connections the of Tek-Sub 4800B Submersible Level Transmitter.
An external power supply delivering 12-36 VDC with minimum current capability of 40 mA DC (per transmitter) is required to power the control loop.
illustrates the connection of the power supply, transmitter, and receiver.
The maximum receiver load
resistance (RLmax) for the DC power supply voltage (Vs) is expressed as:
RLmax = Vs – 12V / 0.02A
Use of a shielded cable is recommended for control loop wiring.
Ensure proper ground connection. Improper grounding may lead to damage or poor signal integrity.
Wiring Diagram
- 4~20mA/4~20mA+HART (2 wire)
- Power+: Red
- Signal+: Green
- 0~5voc/1~5voc/o.5~4.5V/0~10VDC(3 wire) RS485 (4 wire)
- Power+: Red
- Gnd: Green
- Signal+: Yellow
- Power+: Red
- Gnd: Green
- 485 A: Yellow
- 485 B: Blue
Operation
This section covers operation techniques and guidelines.
- Tek-Sub 4800B can be operated without any adjustment.
- Make sure that the installation and electrical connections are done properly before operation.
- Connect the excitation and operate.
- Wait for at least 30 minutes after connecting the excitation for reliable output signal.
Maintenance
This section covers maintenance techniques and guidelines.
The Tek-Sub 4800B Submersible Level Transmitter does not require to be maintained regularly, however the following points must be observed for better operation and reliability.
- Make sure that the wire connection is reliable.
- Make sure that the cable is not damaged.
- Clean the protection cap and diaphragm space regularly.
- Do not pull the cables violently or poke the diaphragm with metal objects.
Troubleshooting
This section provides troubleshooting techniques for most common operating problems.
| Symptom | Corrective Action |
|---|---|
| No Output or Low Output | Check the polarity of the terminals. Check for |
intermittent
shorts, open circuits and multiple grounds.
Check that the adequate voltage is supplied to the transmitter. The
transmitter requires 12 to 36 VDC.
Verify sensor positioning and consider sensor cleaning.
High Output| Check for dirty or defective terminals and interconnecting
pins.
Check that the adequate voltage is supplied to the
transmitter. The transmitter requires 12 to 36 VDC.
Check the sensor limits to ensure that input to the sensor
is within the range.
Erratic Output| Check that the adequate voltage is supplied to the
transmitter. The transmitter requires 12 to 36 VDC.
Check the polarity of the terminals. Check for intermittent
shorts, open circuits and multiple grounds.
Verify sensor positioning and consider sensor cleaning.
If error persists, contact Tek-Trol representative immediately.
Tek-Trol LLC
796 Tek Drive Crystal Lake, IL 60014, USA
Sales: +1847-655-7428
Tek-Trol Solutions BV
Florijnstraat 18, 4879 AH Etten-Leur,
Netherlands
Sales: +31 76-2031908
Tek-Trol Middle East FZE
SAIF Zone, Y1-067, PO BOX No. 21125, Sharjah, UAE
Sales: +971-6526-8344
Support: +1847-857-6076
Email: tektrol@tek-trol.com
www.tek-trol.com
Tek-Trol is a fully owned subsidiary of TEKMATION LLC. We offer our customers a comprehensive range of products and solutions for process, power and oil & gas industries. Tek-Trol provides process measurement and control products for Flow, Level, Temperature & Pressure Measurement, Control Valves & Analyzer systems. We are present in 15 locations globally and are known for our knowledge, innovative solutions, reliable products and global presence.
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