GRAEFF product selection parameters recommendations...

GRAEFF product selection parameters recommendations...

 

 

1.High temperature melt pressure sensor/transmitter

Accuracy class: 0.5%

Output signal: 4-20mA (2-wire), 0-5V (4-wire), 2.0mV/V (4-wire)

Temperature measuring element: J thermocouple, K thermocouple, PT100 thermal resistance (3-wire)

Mounting thread: M18*1.5-6g, M14*1.5-6g

Measuring range: 17.5bar, 35bar, 50bar

Rigid rod length: 152mm, 6.0 "(standard); 203mm, 8.0 "; Special customization

Flexible tube length size: no flexible tube; 457mm, 18.0 "(standard); Special customization

Diaphragm material: 15-5PH stainless steel, Hastelloy alloy, inconel718 alloy or special custom

Filling medium: standard alloy liquid or special alloy liquid

Electrical connection: 6PIN (standard), 7PIN or 8PIN

  

 

2.Industrial pressure sensor/transmitters

Product type: S24 hexagonal (pressure drawing hole), S27 hexagonal (pressure drawing hole), flat film type or special custom

Pressure unit: bar, MPa, psi

Pressure range: pressure range value X

Process connection: G1/4, 1/4NPT, M20*1.5

Output signal: 4~20mA (2 lines), 4~20mA+HART (2 lines)

Electrical connections: Small Hersman connection, M12*1 four-pin circular connector, Packard connector

Material requirements: SUS304 stainless steel, SUS316L stainless steel

Sealing method: standard end seal, end seal with pressure damper, 45° taper seal, ED ring seal

Accuracy level: 0.5, 0.25


 

3.Temperature sensor

Measuring medium: measuring material, can determine the shell material, diaphragm material, with or without explosion-proof, lightning protection and so on

Temperature measuring element: single, double

Temperature measurement point: single/double grounded, single/double insulated

Case diameter: 6.0mm, 8.0mm, 10.0mm or customized

Temperature probe form: perforated, slotted, special customization

Installation interface: M12*1, M12*1.5, G1/2, special customization

Junction box type: B-Kopf, K-Kopf, A-Kopf or direct outlet X meters

Direct outlet type: stainless steel glass wire, PTEF stainless steel glass wire or special custom

Direct outlet tail processing: pin type cold terminal terminal, U-type cold terminal terminal, 3PIN snap power connector, 5PIN snap power connector or special custom

Optional analog signal: 4-20mA

Measuring range: Maximum measuring temperature unit ° C


 

4.Vortex flowmeter

Nominal circulation:

Pipe type: 10, 15, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 500

Plug-in: DN200-DN3000

Material: Sensor and housing: 304 (1Cr18Ni9Ti); Fran: Carbon steel, stainless steel

Measured medium: liquid, gas, saturated steam, superheated steam

Nominal pressure: Pipe type: 2.5MPa; Plug-in type: 1, 6MPa

Accuracy level: liquid 1; Gas and steam class 1.5 (for insert type only refers to measuring head accuracy)

Medium temperature: -20~+100℃; -20~+280℃; -20~+350 ° C (Max. 500 ° C)

Ambient temperature: on-site liquid crystal: 0~+50℃; Pulse signal formula: -20~+70℃

Signal output: 4-20mA (two-wire system); Low level ≤1V, high level ≥5V (three-wire pulse)

Communication protocol: RS485 (Modbus); Hart protocol

Explosion-proof grade: Battery power: Exia II BT4; 24VDC power supply: Exia II BT5


 

 

5.Drop type liquid level gauge

Product type: Standard type input level, anti-corrosion type input level, explosion-proof type input level

Pressure unit: mH2O, KPa

Pressure range: pressure range value X

Process connection: input level, threaded connection, flange connection

Output signal: 4~20mA (2 lines), 0~10V (3 lines), 0~5V (3 lines)

Material requirements: SUS304 stainless steel, PTFE PTFE material, SUS316L

Accuracy level: 0.5 (standard accuracy level), 0.25

 

6.Displacement sensor

Product type: pull rod linear displacement, slider linear displacement, micro pull rod linear displacement, micro self-restoring linear displacement

Effective travel: 100mm, 200mm, 300mm, 1250mm, special customization

Signal output: Resistance signal, (0~5) DVC, (-5~5) VDC, 4~2mA (2 wire), 4~2mA (3 wire), special customization

Electrical connection: Direct outlet, H2 Hersman connector, H3 Hersman connector, special custom

Cable length: 1000mm, 2000mm, 5000mm, special customization

 

Tie rod head form: standard universal joint, extended universal joint, fisheye universal joint, level 0.25

 

 

7.Blasting switch

Product type: Standard structure, alarm structure

Pressure range Bar: 100, 200, 350, 400, 500, 600, 700, 800, 1000

Process connection: 1/2-2UNF-2A, M14*1.5-6g, M18*1.5-6g

Rigid rod length: 152mm, 6.0 (standard); 203mm, 8.0 "; 254mm, 10.0"

End locking method: external hexagonal, milling hexagonal, slot type, external hexagonal +1/4NPT thread interface

Length of alarm wire: X m

 

 

8.Intelligent pressure and temperature controllers

Instrument type: 96*48, 48*96, 96*96

Power supply: 85~265VAC, 24VDC

Pressure range: XMPa

Input signal: mV/V, V, mA

Temperature input type: J, K, E, PT100

Output: 2 relay output 4~20mA transmission output, 2 relay output 0~10VDC transmission output, 2 relay output RS-485 communication