The principle of FT11N-G12HDPRQ flow switch

Based on the principle of heat resistance, including two in the closed probe. One of them is heated as a reference resistor, when the medium flows, the heating resistance on the heat is removed, the resistance valueis changed, the two resistor is used as the basis to determine the velocity difference. Features: the flow switchwithout moving parts, maintenance, convenient installation, a variety of models for diameter, switch quantityadjustable, low pressure loss, compact structure, LED display flow trend and switch state. Application: gas dual-purpose type, can be used for pneumatic and hydraulic systems, can be used for circulating water, cutting fluid and moisture monitoring judgment Xing oil pump, and protecting.

The parameters of FT11N-G12HDPRQ flow switch

Setting range: 1... 150cm/s (water), 3... 300cm/s (oil), 20... 2000cm/s (air)

Signal output: PNP, NPN, relay, analog (4... 20mA), normally open and normally closed (SPDT)

The PNP output power: 24V + 20%DC

On current: 400 mA max (PNP or NPN), the largest 1A@48V ac/dc (relay)

No load current: 80mA, flow indicator (6): LED

Setting: potentiometer setting pressure range: 100bar

The temperature change of medium: less than or equal to 4 DEG /s

Response time: 1--13s, the typical value of 2S, the initialization time: About 8s

Electrical protection: inverting, short-circuit, overload protection

Protection grade: IP67, medium temperature: -20--80 degrees

Ambient temperature: -20--80 degrees, storage temperature: -20--100 degrees

Connection: M12 connector

Material: stainless steel shell, probe:: FT10N type: FT11N type: stainless steel plastic;

Process connection: G1/4 or G1/2 optional external thread

Weight: about 0.4KG

Note FT11N-G12HDPRQ flow switch

(1) analog output only DC power supply

(2) analog output only M12 AC power supply connector, only direct line

(3) the switch type flow switch - scheduling method: flow switch is installed, the medium to flow velocity,monitoring adjustment potentiometer, the first green LED to brighten. Then when the flow rate is lower than thecurrent value, the switch is released. If you want to make the switch point than the current velocity, adjustablepotentiometer LED green light.

(4) output analog switch deb ing mode: analog analog output flow sensor, the output is 4... 20mA, is proportional to the flow rate, output is nonlinear. Each sensor has two knobs, one for the "upper limit (20mA)"as a "lower limit (4mA)", for the output set. The flow sensor is installed, the medium low velocity flow to the lower limit of the need to monitor, adjust the knob, the first bright green LED (4mA); the medium with need to limitvelocity flow monitoring, adjusting the cap knob, the fifth LED green (20mA); then, the output will beproportional to the flow rate between the upper and lower bounds, 4mA corresponds to lower flow rate,maximum flow rate corresponding to 20mA.