Overview
LT series intelligent switch-type RF admittance level instrument is a set of highly intelligent chemical position control instrument with unique creativity and wide application. RF admittance level instrument is developed on the basis of smart RF material level technology and can overcome The influence of the traditional measurement methods on the accuracy and the complicated tuning steps have caused the user annoyance. Level-Ease intelligent switch-type RF admittance level meter has high measuring accuracy, free maintenance, and low cost of use. Products are widely used in petrochemical, food, metallurgy, electric power, mining, water conservancy, pharmaceuticals and other fields.
Radio Frequency Admittance Level Meter Details:
Radio Frequency Admittance Level Gauge Instrument Features â– Versatility: Applied to various occasions, fly ash, particles, powder, liquid, viscous, conductive and non-conductive materials.
â– anti-stick circuit: Using anti-adhesion electronic circuits can eliminate the spurious signals generated by the material adhesion.
â– Probe can be disassembled: The probe and controller can be separated, gold-plated stylus connection, installation and removal will not affect the incoming and outgoing materials.
■High and low temperature resistance of the probe: The probe is suitable for the working environment from -80°C to l80°C. It also provides a rod type; plate type ceramic high temperature probe (temperature of 800°C).
â– Large output capacity: The relay contact output with 2A, 220Vac capacity is used, and a status light shows the working status. 0-30 seconds delay function.
â– SMT technology: Make the electronic circuit more resistant to vibration, and the circuit parameters are more stable and reliable.
â– Wave pressure technology: Improve the pressure of the probe.
RF Admittance Level Meter Technical Parameters Relay Capacity: DPDT, Rated 2A, 220Vac or 1.5A, 28VDC
Delay: 0-30 seconds Continuously adjustable power supply: 220Vac or 24V/dc
Power: 3W
Sensitivity: 0.3pF-800pF
Material temperature: -80 °C to 180 °C (above 180 °C available high temperature probe)
Circuit temperature resistance: -40°C to 66°C
Loss of power protection: height mode, on-site adjustable housing: IP65, heavy cast aluminum housing probe parameters Installation Thread: l"NPT
Probe material: stainless steel, Teflon
Wetted media: stainless steel electrical interface: PGll or 3/4" NPT
Working pressure and temperature relationship: 25kg/cm2@-80°C
20kg/cm2@38°C
10kg/cm2@85°C
5kkg/cm2@120°C
Okg/cm2@180°C
Sensitivity corrections Take these general rules when making adjustments:
* Turn the two sensitivity adjustment potentiometers clockwise to increase the sensitivity.
* When the two sensitivity controls are adjusted well, the red light is on. Indicates that there is "presence" of material on the probe. The green light is on. Indicates (none) material exists.
* The installation method is horizontal or vertical. To ensure stable operation of the equipment, it should be warmed up for 5 minutes. Adjust position and indicator See illustration.
A) Measure the non-conductive material, adjust the fine (P) sensitivity control to the middle position, then slowly adjust the coarse (c) sensitivity until the status light has just turned green, note the position of “emptyâ€. Then, insert the probe into the material re-adjustment (n sensitivity control (does not touch the coarse adjustment sensitivity) just change to the red point, note its position. Note the difference between the two marks, and re-adjust the fine (P) sensitivity control to two The middle position of the mark, this is a complete debugging process.
Note: Fine-tune the rotatable angle should be 20 degrees, if less than 20 degrees, please consult with the manufacturer. It is recommended that the best installation method for non-aqueous process liquids (non-conductive liquids) is vertical installation. Alarm when liquid reaches probe loom.
B) For water-based liquids (conducting liquids) (metal containers): counter-clockwise adjustment sensitivity coarse adjustment (c) to maximum, because the conductive liquid is easy to measure, just touch the sensor probe, this process provides maximum anti-sticking Mountain with energy. This is a complete adjustment process.
C) For water-based liquid (conductive) non-metallic containers): Refer to A), but fine tune (F) to the exact green position. There is material)
2) Time delay
L2000-C includes 0-30 seconds adjustable time delay, delay open, delay off mode. The typical use of this mode is to eliminate the (jitter) control relay or to control the cycle sequence.
The delay control is set to zero at the factory (counterclockwise position). When delays are used to eliminate relay jitter, only a few degrees of rotation are required. The delay will result in swinging above or below the control point of the craft level, but the average level is still equal to the control point. Excess and insufficiency relate to the delay ratio.
Note: The general delay is zero
3) Failure protection mode selection Fault alarm work reflects most of the major fault conditions. Including the failure of the power supply, this will cause the control relay to release the voltage. Therefore, the state of the relay releasing the voltage is called a fault alarm. This action is done by a small jumper near the center of the control panel (delay adjustment left). See the figure. The (H) position shows the high alarm and the "L" position shows the low alarm.
Radio Frequency Admittance Level Meter Quick Calibration Method
1. Connect the probe and header in the correct way and connect the power supply. Pay attention to the correct power supply voltage. Warm up for 3 minutes.
2. The adjustable range of 3 potentiometers on the instrument panel is in the range of 8 o'clock to 4 o'clock. It can not rotate 360 ​​degrees, otherwise it will damage the potentiometer. The green light represents the normal state, and the red light represents the alarm state.
3, potentiometer F - on behalf of fine tuning (referred to as F): potentiometer C - on behalf of coarse adjustment (referred to as C); potentiometer DLY - represents the delay output (referred to as DLY): delay time 0-30 seconds), can Set or close arbitrarily.
4. In general, place the FALLSAFE insert on the L position and close the delay (counterclockwise rotation).
5. Place F on the l 2 o'clock position, adjust C, and hit the critical point at the 10 --- 2 o'clock position (turn the green light clockwise first to the red light, and then turn the red light counterclockwise to the green light Location), this location is called the supervision point. If the red light is already on after power on, then adjust C counterclockwise, and when the red light turns green, it is the critical point.
6. Adjust F again clockwise to find a more precise tipping point. The green status should be displayed.
7. (a) If it is applied to a dust system, F may be rotated about 20 degrees counterclockwise from the critical point.
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Technical Data:
Working Width/Gauge: 134", 200", 242"/ E18,E24;
Working Speed: 50-750rpm (Depends on yarn and designs, Fall-plate machines 550rpm);
Pattern Drive System: EL Drive;
Yarn Let-off Device: Electronical Yarn Let-off System;
Fabric Take-up: Electronical Fabric Take-up System;
Batching Device: Electronical Batching Device;
Laser Stops Detector;
Online Service Supported.
Details please check machine leaflet.
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