The form and the requirement can be designed as the customers’ requirement with individual unit, the basic component is as below:
1. Sensor：
1.1.1 Work feature：0—20KΩ 5Ω/5mm
1.1.2 Measuring arrange：0—20m//5mm
1.1.3 Outside dimension：L×12mm×24mm＆0.8mm(grounding type with sensor on the side)
L×∮24mm＆2.0mm( grounding type with inner sensor)
1.1.4 Application：0— 20m various mediums and installation
1.1.5 Temperature arrange：-20℃—250℃ -20℃—80℃（top installed）
1.1.6 Max open-circuit voltage：DC12V( flash floating voltage )
1.1.7 Max load voltage：DC0—200mV( on site) DC0—2V（ far away）
1.1.8 Max short-circuit current：1mA（ it is equal to the communication cable terminal constant current）
1.1.9 Main parts：
Frame and magnetic suspension (side installed), magnetic ball, connecting port (top installed), FQ14-5T water proof inserts, ∮5-6mm outside hidden double-core signal cable.
Drawing 1: 4 Install structures of USX system magnetic spring sensor
Round-shape gas-proof installed pressure gradient drive resistance variable membrane
Characteristics: resistance: 0—2000Ω, pressure gradient precision resistance variable resistance, output: 1.0 grade
Measure arrange: 0—2m//5mm 0—20m//10mm 2—200m//10cm
Application: various poor, tank or other capacitors with normal pressure
Outside dimension: 80mm×∮78mm (sensor body)
Temperature arrange: -10℃—80℃ (inner inside), -10℃—150℃ (bottom installed)
Max open circuit: DC12V (splash, suspended voltage)
Max load voltage: DC0—200mV DC0—2V (far transfer)
Max short circuit current: 1mA, which is equal with the constant current of communication cable terminal
Main connection parts: FQ14-5T water-proof inserts, ∮5-6mm outside hidden double-core signal cable
Site explosion-proof digital meter
Digital display: 31/2 LED/LCD, direct reading
Display function: level can be read directly from 0.00 to 19.99m, or percentage from 00.0-99.9L%
Display accuracy: 4 digits, grade 0.5
Structure: EX explosion-proof cover
Work power supply: DC5V, the power is supplied by power control or power supply for secondary meter, DC4.8V-GN5#×4 (it can be charged when being used individually)
Output signal: DC0—2V/mA (to secondary meter or computer communication)
Meter outside dimension: ISO9002LBP12 Ex ∮88mm×64mm meter weight: about 0.6kg (including signal output assembly)
Relative auxiliary: signal output cable port
4-core outside hidden signal transfer cable (OD: ∮8mm-∮12mm)
Rotary sensor assembly
Digital display secondary meter
Drawing 3: Structure and connecting drawing of transfer digital secondary meter
Display way: 31/2 LED, direct reading
Display function: level can be read directly from 0.00 to 19.99m, or percentage from 00.0-99.9L%
Display accuracy: 4 digits, grade 0.5
Setting accuracy: S±1, grade 1.0 (upper and lower limit warning and output control)
Work power supply: AC220V±10%50Hz
Power output: DC5V/max100mA (matched with the worksite digital transfer power supply)
Signal input: DC0-2V/1mA (signal transfer to secondary meter)
Signal output: DC0-2V (signal output from series port of the secondary meter)
Warning: Inner installed LED flashed and buzzer warning ( the volume is adjustable from 0 to 60db)
The red LED light and the buzzer will work when it is more than the upper limit
The green LED light and the buzzer will work when it is lower than the lower limit
Output control capacity: AC220V/2A or DC24V/5A（normal turn on/a or normal turn off/b）
Meter outside dimension: ISO900280mm×160mm×148mm standard case
Meter weigh: about 0.8kg (excluding other parts)
Relative parts: Signal output cable port parts
4-core hidden original signal transfer cable (OD: ∮6mm-∮12mm)
The far-transfer secondary meter is the core unit of the system, so the working characteristics are very important. It has to make sure the outside connection (drawing 4) is reliable, and the function adjust (drawing 5) should be taken seriously to provide a normal running.
Output precision power control (can be far transfer for worksite sensor or digital display the worksite meter)
Work power supply: ：AC220V±10% 50Hz
Power supply output: DC5V/max 100mA (matched with the far transfer on worksite)
DC0-2V/mA constant current (sensor signal series port, computer communication)
DC12V/24V±1% (It can be used for DC4-20mA computer communication)
Type of USX liquid level measuring system
USX liquid level measuring system adopts far-transfer secondary digital meter and sensor as base frame, the type is divided as the method below:
Type example
USX2-2000PAKa means the measuring range is 0-2000mm, grounding, inside sensor and top installed without site digital display meter, it can supply outside control, common product.