Xi'an Kacise Optronics Co.,Ltd. |
Verified Suppliers
|
|
1. Product Overview
KLD80 series products are frequency modulated continuous wave
(FMCW) radar products operating at 76-81GHz, supporting four-wire
and two-wire applications. There are multiple models, the maximum
range of the product can reach 120m, and the blind area can reach
8cm. Because of its higher operating frequency and shorter
wavelength, it is especially suitable for solid-state applications.
The working method of transmitting and receiving electromagnetic
waves through a lens has unique advantages in high dust and harsh
temperature environments (+200°C). The instrument provides flange
or threaded fixing, which makes the installation convenient and
easy.
The main advantages of KLD80 series FM radar level meter are as follows:
Communication and debugging
The instrument can be debugged through LDM in the field, and can
also be debugged on the PC side with the optional host computer
software. The connection between the meter and the PC is as
follows:
to communicate with:
1. USB to RS485 serial cable (four-wire system);
2. USB to TTL serial cable (two-wire system);
3. USB to Hart-modem (two-wire system) for communication.
4. Through the mobile phone Bluetooth debugging, the on-site
debugging is safer and more convenient.
5. 4G network, remote debugging through remote module.
2.Product Introduction
Model KLD801 Application liquid, weak corrosive liquid Measuring range 0-10m Process connection thread/flange Antenna size 22mm lens antenna Accuracy ± 2mm Protection grade IP67 Explosion proof grade Exd IIC T6 Gb Frequency 76-81GHz Power supply two wire/four wire/six wire system (DC24V/AC220V) Signal output 4~20mA/HART/RS485 Modbus Display/programming programmer with Bluetooth/5G remote network debugging |
3.Technical Specifications
Transmission Frequency | 76GHz~81GHz |
Measuring Range | 0~120m (liquid) |
Measurement Accuracy | ±2mm |
Beam Angle | 3°/6° |
Range Of Dielectric Constant Used | ≥2 |
Power Supply Range | DC24V/AC220V 2-wire system/4-wire system/6-wire system |
Communication Mode | MODBUS bus HART |
Signal Output | 4~20mA+RS485 4~20mA |
Fault Output | 3.8mA, 4mA, 20mA, 21mA, hold |
Field Operation/Programming | 128 × 64 dot matrix display/4 buttons can be equipped with host setting software |
Industrial Temperature/Humidity | T0:-40~85℃/≤95%RH;T1:-40~200℃; T2:-40~500℃; T3:-40~1000℃ |
Shell Material | Cast aluminum, stainless steel |
Antenna Type | Lens antenna |
Process Pressure | -0.1~2.5MPa |
Cable Entry | M20 * 1.5 or 1/2NPT |
Recommended cable | AWG18 or 0.75mm ² |
Degree of protection | IP67 |
Explosion proof grade | Exd IIC T6 Gb |
Installation method | Thread or flange |
Net weight/gross weight | Random configuration |
Packing box size | Random configuration |
Transmission frequency | 76GHz~81GHz |
4.Structural dimensions
Schematic Diagram of Pipe Thread Process Connection Structure Size at Room Temperature
5. Installation
Two points for installation:
(1) Align the target material level to ensure that it is
perpendicular to the material level plane;
(2) Avoid false echoes. See the following points for typical
working conditions.
● Ensure that there are no interfering objects, such as ladders and
steps, within the beam range.
Figure 5 – 1 Schematic Diagram of Instrument Installation Position
● The instrument installation shall ensure that the antenna beam avoids the feed inlet, as shown in Figure 5-2.
Figure 5 – 2 Antenna beam avoiding feed inlet
● The instrument shall be installed at least 20cm away from the
vessel wall, otherwise it is likely to produce wrong readings, as
shown in Figure 5-3.
Remarks: The liquid measurement installation spool should be
perpendicular to the ground.
Figure 5 – 3 Installation at least 20cm away from the vessel wall
● The solid cone container shall ensure that the beam is directed at the tank bottom as much as possible, otherwise the measurement results at the tank bottom may be inaccurate, as shown in Figure 5-4.
Figure 5 – 4 The conical tank shall ensure that the beam is directed at the tank bottom as far as possible.
6. Product wiring diagram
6.1 Wiring diagram of single chamber enclosure 24VDC power supply
four wire products
Fig. 6-1 Wiring Diagram of Four wire Products
In four wire system application, 4-20mA analog output is two
separate terminals except 24V power supply terminal. At the same
time, the four wire system also provides 485 output terminals,
which is convenient for connection and debugging with PC or the
site requiring 485 interface.
6.2 Wiring diagram of single chamber enclosure 24VDC power supply two-wire product
Fig.6-1 Wiring diagram of two-wire products
In the two-wire system application, in addition to the traditional power supply terminal (4-20mA output), the instrument also has a serial communication terminal, which is convenient to connect with the current mainstream IOT equipment or transparent transmission equipment for remote control and debugging.
Model Selection Table
80GHz FM radar level meter
Model | Model KLD801 |
Licence | P Standard type (non explosion proof) I Intrinsically safe(Exia IIC T6 Ga) D Flameproof type(Exd IIC T6 Gb) |
Process connection | G 1 ½threads A Flange DN50/304 B Flange DN80/304 C Flange DN100/304 D Flange DN125/304 E Flange DN150/304 Y Special customization |
Antenna type/material | P 22mm Lens antenna Y Special customization |
Process temperature | V Standard/(-40~120℃) Y Special customization |
Electronic unit | 2 (4-20)mA/24V DC Two wire 3 (4-20)mA/24V DC/HART Two wire 4 (4-20)mA/220V DC Four wire 5 RS485/Modbus/24V DC Four wire 6 (4-20)mA/RS485 /24V DC Six wire dual output |
Enclosure/degree of protection | L Aluminium/IP67 Single cavity B Aluminium/IP67 Double cavity J stainless steel 304/IP68 Single cavity |
Cable incoming line | M M20*1.5 N ½NPT |