INTERFACE CONTROL AND INVENTORY MANAGEMENT USING KODATA® SOUNDING TYPE TRANSMITTERS
MEASURMENTS OF INTERFACES, LIQUIDS AND BULK SOLIDS RELIABLEY UNDER DIFFICULT CONDITIONS INCLUDING FOAM, HIGH TEMPERATURE, AND PRESSURIZATION
THE NEW KODATA® MEASURING SYSTEM
Monitor
up to 30 tanks of assorted materials in storage; only a 2 wire com link
is required
for Setup, Calibration, Testing, and Diagnostics from the Control Room.
Features
- Thousands of Series 830 KODATA® level transmitters are in world wide service on all kinds of liquids, interfaces, granules, and powders.
- Unaffected by dust, foaming, varying materials, air turbulence, high viscosity, etc.
- Can be operated directly by a PC on PLC; uses Delta Controls Kodata software.
- Modern design has reliable digital electronics.
- No tank climbing - you can calibrate, reconfigure, test, and readout up to 4000 feet (1200 m) away.
- Smart software - can operate from manual M/N 825 control unit or your computer.
- 4-20 mA, RS485, and contact closure output signals.
- Self checking diagnostics - displayed remotely on M/N 825 or P.C.
- Can read 100% full tank, top dead space not required.
- High torque brushless motor reliably pulls plummet up -avoids entrapment .
- Long life and low maintenance drive design. No gears, commutators, cams, relays, or mechanical switches; permanently lubricated. Designed for up to 200,000 operations.
- Available in all stainless steel and Teflon® wetted parts.
- NOZZLEGARD® protects the cable, virtually eliminating problems such as cable fraying, kinking, and breaking.
Operating Principle
A sounding transmitter is located on top of the tank or silo to be measured. A plummet (float or weight) is lowered until it touches the process material and is then retracted. The distance traveled is computed and transmitted as a signal representing level, volume, or weight. The signal may be remotely displayed and is directly read in engineering units. All calibration, configuration, and test data reside in the memory of each sounding transmitter. The remoted operate/display device is inherently very simple and easy to setup and program. Each sounding unit(s) may be remotely operated by any of several display/control devices. The operating device can be a PLC, Model 825, host computer, or a combination of these. Delta Controls can provide required interface and software.
Range: Up to 110 feet (30m)
Resolution: 0.005 inches (0.002mm)
Accuracy: 0.1 inches (2.5mm) or better
Calibration & testing: Done from an integral RS485 interface module, remoted display/control unit, PLC, or host computer
SUMMARY OF MODELS AND STYLES
The Delta Controls Model 831 Sounding level transmitter outputs a signal representing volume, weight or level. The com signal may be 4-20 mA, RS-485, or CC pulse output. It incorporates reliable digital electronics and smart software, allowing it to operate from a manual Model 825S display/control unit or from a Model 826 remote display. It can also be operated by manual pushbutton, PLC, host computer or internal timer. It can be calibrated, reconfigured, tested, and read from up to 4000 feet away. Up to 30 level transmitters may be in a single 2 wire com loop. The Delta Controls 831 can be configured to read a totally full tank, eliminating the need for top dead space. The Nozzlegard feature protects the cable, virtually eliminating problems such as fraying, kinking, and breaking.
The Delta Controls Model 825S Remote Display/Control Unit communicates with one or more Model 831 sounding level transmitters to initiate and display measurements. Communication is bi-directional over a single wire pair RS-485 loop. It remotely controls transmitters, and displays content in from 1 to 30 tanks, silos, etc. Two Model 825S units, in separate locations can both control and read the same loop; flush or surface mounting.
Data Sheets
Download the
pdf version of this page.
Model 831 Sounding Level Transmitter
Model 825S Remote Display/Control Unit
Note: You will need the Acrobat Reader to view the data sheet.
ORIGINAL KODATA® TRANSMITTERS
Replacements and Parts for older Kodata units which are now out of production
Kodata® brand inventory systems and gaging units have been manufactured for over 25 years. The original designs, made prior to 1996, have been replaced and are no longer manufactured. Parts or direct replacement subassemblies and units are available for all models.
Some of the older Kodata®Models which are out of production are:
| Sounding Transmitters | Displays and Convertors |
|---|---|
| Model 423S | Model 423C |
| Model 223S | Model 223C |
| Moto Level | Model 623 |
| Model 830 | Model 823 |
| Model 821 | Tank Gager |
( Note: Please provide original Kodata, Inc model and serial number when ordering )