KAIDI radar level meter company for transportation

The characteristics of 26G radar level meter:

Ø  Small antenna size, easy to install; Non-contact radar, no wear, no pollution.

Ø  Almost no corrosion, bubble effect; almost not affected by water vapor in the atmosphere, the temperature and pressure changes.

Ø  Serious dust environment on the high level meter work has little effect.

Ø  A shorter wavelength, the reflection of solid surface inclination is better.

Ø  Beam angle is small, the energy is concentrated, can enhance the ability of echo and to avoid interference.

Ø  The measuring range is smaller, for a measurement will yield good results.

Ø  High signal-to-noise ratio, the level fluctuation state can obtain better performance.

Ø  High frequency, measurement of solid and low dielectric constant of the best choice.

2.   The Electrical Connection 

l  The power supply voltage:

l  Connection  mode:

Ø  24V two wire wiring diagram as follows:

Ø  6~24V RS485/Modbus wiring diagram as follows:

l Explosion Proof Connection

The intrinsic safety version sensors (Exia IIc T6) use Alu-die casting housing and filling Silicone rubber sealants internal structure aimed to prevent sparks resulted from circuit failure from leaking out. It is applicable for the continuous level measurement of flammable medium under Exia IIc T6.

A safety barrier FBS-2 must be used together with the intrinsic safety instrument. It is an associated device to this product for the power supply of this product. The main specification is intrinsic safety: Exia IIC, voltage of power supply: 24V DC±5%, short-circuit current: 135mA, operating current: 4...20mA.

All cables must be shielded. The max length is 500m for the cable from the barrier to the sensor. Stray capacitor≤0.1μF/Km, stray inductance 1mH/Km. Instrument must be connected to the ground potential. Any unapproved associated device is not allowed to be used.

l  Protection  grade:

This instrument meets the protection class IP66/67 requirements, please ensure the waterproof cable sealing head. The following diagram:

How to install to meet the requirements of IP67:

 Please make sure that the sealing head is not damaged.

Please make sure that the cable is not damaged.

Please make sure that the cable for use with electrical connection specification.

Cable into the electrical interface before its curved downward, ensure that the water will not flow into the shell, see the①

Tighten the cable seal head, see the②

Please electrical interface will not use blind plug tight, see the③

3.   Instrument Commissioning

l  There are three kinds of debugging method:

1)    Display / Keyboard  

2)    Host debugging  

              3)  HART handheld programmer 

l  Display / Keyboard:

Please debug the instrumentation by four buttons on the display screen. There are three debug menu languages optional. After debugging is generally used only for display, through the glass window can read measured value very clearly.

4.   Structure Size   (Unit: mm) 

l 
The outer shell:

l  Appearance  size:

901        

902 

903 

904 

905 

906 

l  Flange  type: 

5.Technical Parameters 

6. Meter  Linearity

901 

Emission angle         20°

Precision        See chart     

902

Emission angle                Depending on the size of the antenna

-￠46mm                         18°

-￠76mm                         12°

-￠96mm                          8°

-￠121mm                        6°

Precision                          See chart

902T

Emission angle                Depending on the size of the antenna

-￠76mm                         14°

Precision                          See chart

903

Emission angle                 Depending on the size of the antenna

-￠46mm                          18°

-￠76mm                          12°

-￠96mm                           8°

-￠121mm                         6°

Precision                           See chart

904

Emission angle                Depending on the size of the antenna

-￠196mm                        4°

-￠242mm                        4°

Precision                         See chart

905

Emission angle                 Depending on the size of the antenna

-￠76mm                          12°

-￠96mm                           8°

-￠121mm                         6°

Precision                          See chart

906

Emission angle                 Depending on the size of the antenna

-￠76mm                          12°

Precision                           See chart