Archives des Complex control loops - Pignat.com

Level control integrator

PIGNAT — Thu, 02 May 2019 14:14:12 +0000

Study a level / flow rate cascade loop

Study a level control integrator loop (volumetric pump P2 for drawing off at a regular flow rate)

Operate safety devices: high level sensors in tanks, low level sensors to protect pumps.

Study and set the parameters of industrial sensors and actuators.

Sensors using different technologies are installed: level by bubbling or

by pressure, flow rate by electromagnetic flowmeter, control by solenoid valve or pump.

The sensor and actuator signals are available for wiring on 4 mm safety jack sockets.

L’article Level control integrator est apparu en premier sur Pignat.com.

Integrated level control

PIGNAT — Thu, 02 May 2019 13:52:44 +0000

Setting of the PID parameters.

Setting to direction of action of the regulator:

tank top (regulator in iverse) or tank from the bottom (online regulator)

Setting of alarms on the regulator.

Setting the range of measurement of a differential pressure transmitter

and validation Option: study of the regulation of flow.

L’article Integrated level control est apparu en premier sur Pignat.com.

On/Off level control

PIGNAT — Thu, 25 Apr 2019 08:05:32 +0000

Study and set the parameters of industrial sensors and actuators

Calibrate and compare the technologies

GENERAL SPECIFICATIONS

Water storage C0 :
Feed tank : about 50 L.
SS centrifugal pump : about 2 m3/h
By-pass ciruitry.
Tank :
Clear plastic tank, diameter 200 mm and height about 500 mm.
Feed pipe plunging into the tank.
Consumption pipe returning to feed tank.
On-Off electropneumatic valve.
Feed circuitry:
PVC pipes.
Analogue control device : valve or pump (see option 01 or 02).

Instrumentation

Level detector.
Electrovalves.
Pressure transmitter.
Flowrate transmitter.

Dim : 150 x 60 x 160 cm.

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L’article On/Off level control est apparu en premier sur Pignat.com.

Split range control water

PIGNAT — Mon, 11 Mar 2019 14:58:36 +0000

Valves with numerical positioner setting

GENERAL SPECIFICATIONS

Tank 100L, in PE. Low level detector.
SS centrifugal pump with adjustable speed variator, by-pass.
Circuits selecting valves and circuit characteristic setting valve.
Control valve, with electropneumatical positioner, low flow.
Control valve with numerical electropneumatical positioner, high flow.
Compressed air circuit.

Instrumentation

Electromagnetic flow transmitter.

The 4-20mA signals available on wiring terminals Ø 4mm.

Dim : 150 x 60 x 185cm - 170 kg
Aluminum profile framework 45 x 45mm

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L’article Split range control water est apparu en premier sur Pignat.com.

Split range control air

PIGNAT — Mon, 11 Mar 2019 14:35:01 +0000

Real process simulation, reactor type

GENERAL SPECIFICATIONS

50 L buffer tank, safety valve. Delivered with test certificate.
Tank 15 L. Delivered with test certificate.
Compressed air circuit.
2 identically control valves type Samson, electropneumatical positioner 4-20mA.
Pressure regulator, adjustable with manometer.

Instrumentation

Florate controller.

Pressure tranmitter , type piezoresistive, Hart technology, signal 4-20mA.
The 4-20mA signals available on wiring terminals Ø 4mm.

Dim : 110 x 50 x 160cm - 90 kg
Aluminum profile framework 45 x 45mm

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L’article Split range control air est apparu en premier sur Pignat.com.

Conductivity control

PIGNAT — Mon, 11 Mar 2019 14:16:10 +0000

Study, configuration and calibration of industrial sensors and installed actuators

Control without chemical products

GENERAL SPECIFICATIONS

30 L, PE, tank with draining valve.
Feeding peristaltic pump, variable flow, manual control.
10 L, tank in polypropylene with draining valve.
Control peristaltic pump, variable flow 4-20 Ma.
20 L tank, in polypropylene with draining valve.
Glass plug flow reactor, with overflow outlet, drain valve and tracer injection.
Conductivity transmitter.

Instrumentation

Conduct meter probe.
Temperature probes Pt100Ω.
Flowmeter.
Configurable electronic PID control.
The 4-20mA signals available on wiring terminals Ø 4mm.

Dim (framework with casters) : 80 x 60 x 160 cm - 50 kg
Aluminum profile framework 30 x 30mm

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L’article Conductivity control est apparu en premier sur Pignat.com.

pH control

PIGNAT — Mon, 11 Mar 2019 14:04:18 +0000

pH transmitter study and calibration

GENERAL SPECIFICATIONS

Glass reactor, 1L, quick opening lid, draining valve.
Adjustable overflow tube.
Electrical stirring with adjustable speed. SS shaft and propeller.
Feeding tank, 20L, in polyethylene.
Dosing pump, variable flow by potentiometer.
2 storage tanks, 10L, in polyethylene.
2 pumps for proportioning (acid/base).
Separated pH probe.
Effluents storage tank, in polyethylene.

Instrumentation

PID configurable controller.
Electronic pH transmitter with local display, signal 4-20mA.

Dim : 80 x 60 x 160cm - 100 kg
Aluminum profile framework 45 x 45mm

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L’article pH control est apparu en premier sur Pignat.com.

Air heater temperature control

PIGNAT — Mon, 11 Mar 2019 10:55:48 +0000

GENERAL SPECIFICATIONS

Heating element 3 x 1000 W.
Ventilation.
Inductive detector.
Two temperature probes.
Electrical cabinet.

Instrumentation

Temprerature probe Pt100Ω.
Thermocouple.
Speed variator.
Power controller.
Safety thermostat.

Dim : 150 x 65 x 220cm - 100 kg
Aluminum profile frame 45 x 45 mm

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L’article Air heater temperature control est apparu en premier sur Pignat.com.

Cascade control

PIGNAT — Mon, 11 Mar 2019 10:48:36 +0000

Unit designed for training technicians to adjust and/or maintain industrial control systems multiparameters

GENERAL SPECIFICATIONS

Water storage:

Feeding tank, 50 L, draining valve.
Low level detector.
SS centrifugal pump variable speed.

Upper tank:

Transparent plastic tank.
High level detector.
Draining with setting and disturbance valves.

Lower tank:

Transparent plastic tank.
High level detector.
Level measurement using a pressure transmitter above the tank.
Draining with setting and disturbance valves.

Instrumentation

Electromagnetic flow transmitter.
Relative pressure transmitter
The 4-20mA signals available on wiring terminals Ø 4mm.

Dim : 180 x 65 x 200cm - 200 kg
Aluminum profile framework

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L’article Cascade control est apparu en premier sur Pignat.com.

4 Variable process control trainer

PIGNAT — Mon, 11 Mar 2019 10:35:01 +0000

4 Variable process control trainer

The unit is autonomous, composed of two tanks and two pumps for running in closed circuit.

It allows to study and set several control loop simple or in cascade.

It includes :

– Water flow rate control by action on a valve

– Water level control by action on a valve

– Discharge pressure control by action on the pump’s variator

– Water level control by action on the pump’s variator

– Bath temperature control by action on an electrical heater

– Exchanger outlet temperature control by action on a valve

– Flow / level cascade control by action on a valve

– Discharge pressure / level cascade control by action on a variator

Two control loops can function on the same time.

The wiring of different control loops is achieved by safety plugs sensor-controller-actuator.

The components installed are industrial one allowing a technologic study with the help of the technical documents in the technical file.

A tactile screen display the measures, control parameters setting, the functioning mode auto/manu, the data recording on a USB stick.

Study and adjust a number of simple control and cascade loops

Temperature control

Level control

Flow control

Pressure control

Large choice of actuators : electrical heater, control valve or pump with frequency variator

Study and set the parameters of the industrial sensors/actuators installed

L’article 4 Variable process control trainer est apparu en premier sur Pignat.com.