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Regulators / Control Systems
Regulators are small intelligent installations which consist of a sensor input, Regulators/Control Systems to define the regulation processa digital indicator and a regulation output. There are regulators for diverse measurement works. Regulators are set through their own keys. Nominal values can be established to define the regulation process. Some regulators have also a regulation output available for normalized signals output which can be connected to a display system to control this process. Regulators are specially important in sewerage systems because of the strict regulations regarding this matter. Regulators can control the pH value in a drain and regulate this value to avoid any environmental contamination. The pH regulators can also be used in fish farming or pools. Temperature regulators are used in air-conditioning sectors or in the control of water temperature. Thanks to the wide range of applications, regulators are mostly used in the industry and can perform works which require PLC complete solution. If you have any question regarding our regulators/control systems, please contact us: UK customers +44(0) 23 809 870 30 / US customers (561) 320-9162 and our technical staff will be pleased to help you regarding regulators/control systems as well as the rest of measuring instruments and scales available at PCE-Instruments.

At the following links you will find regulators for different magnitudes:

Regulators/Control Systems: Level indicator.

Level indicator

Regulators/Control Systems: Moisture.

Regulators/Control Systems: pH. pH Regulators/Control Systems: Pressure


Regulators/Control Systems: Redox Redox Regulators/Control Systems: Speed. Speed
Regulators/Control Systems: Temperature


Regulators/Control Systems: Universal Universal

At the following links you will find diverse Regulators/Control Systems:

Discontinuous Regulators
Regulators are divided in different types: discontinuous regulators and continuous regulators. The discontinuous regulators have a simple property of commutation. When a limit value is reached, a relay is activated or deactivated. Because the way of working is in interrupted form, these types of regulators are denominated discontinuous regulators. The discontinuous regulators can be final switches or a bimetal.Regulators/Control Systems: Discontinuous Regulators The regulators of this type are the simplest regulators. They are emphasized by its robustness and its excellent relation quality price. Due to their economic price the discontinuous regulator are acquired by companies with a low budget. The discontinuous regulators are different from the regulators of two points and regulators of three points.
The regulators of two points are characterized by the swtich ON/OFF commutator. They can be regulators of pH in the residual water sector where they require to verify continuously the water tanks. If the regulator detects that the residual waters are too acid, that is to say, the pH  value is below 4, in such case the regulator would connect a pump to add an alkaline solution to neutralize the water. The regulator verifies that the residual waters are again in the normal values and it deactivates the pump.
The regulators of three points have a system of switch ON, OFF, ON. This is very advantageous in the sector of the air conditioning. Regulators of temperature measure the environmental temperature. In case the temperature falls below a limit value, for example 19 ºC, the regulator switches on the heating in the offices to assure pleasant working conditions. And when during summer, the temperature is over 24 ºC, the regulator can, by means of a second relay, switch on the air conditioning and lower the blinds, regulating a temperature previously predetermined.

Continuous Regulators

We also have the continuous regulators which Regulators/Control Systems: Continuous Regulators can receive many values almost continuously. The analogue output of the regulators controls the activator or trigger. The trigger is an element of the regulation field that influences the regulated magnitude (i.e. the temperature in a heating). Through the output, these regulators control the consistency with which they will influence the regulated magnitude. If the regulator gives an output with the maximum value, the heating will render to the maximum. On the contrary, if the minimum value occurs like an output, the heating will not even ignite. The possibility “of dosing” the heating capacity allows the continuous regulators a fast and precise adjustment of the magnitude regulated in relation to the set-point. Nevertheless, it is important that the regulators calculate the “dose accurately”. As output for such measurements the regulators measure the available variation of the regulated magnitude of reference value. The reaction to this variation can be, for example, proportional, but as this is technically not optimal an integral or differential part is additionally calculated. The necessary parameters must be detected for the corresponding field of regulation and they must be kept in the regulator internal memory. In addition, modern PID regulators offer other functions that independently detect the optimal parameters.


Continuous Regulators with commutated output

In order to work with continuous regulators with an analogue output, triggers with their corresponding inputs are necessary. Some regulators make a continuous regulation by means of a command or control contact, while varying the time of activation of a contact in fixed cycle. Therefore, the contact of control of these regulators is closed permanently with the maximum influence of the regulated magnitude. Following the example of the temperature regulation, the heating would be warming up to the maximum. Nevertheless, if you wish only half of this temperature, the contact of control of the regulator will ignite only 50% of the time. This type of regulators can be used only with slow alterations of the regulated magnitudes, because the relays have a frequency of limited commutation. 


Timer and function ramp Regulators
Some models of the regulators offer a timer and the ramp function. These functions allow the regulators reach different set-point values in a predetermined sequence. Also, it is possible to fix the speed with which the regulators must change the regulated magnitude. This allows the regulators automate processes without the necessity to manipulate the regulators.

Regulators/Control Systems: Timer and function ramp Regulators

Terms and definitions in the regulation and control system and instruments of regulation used.

Specific or predefined value: standard value or reference value 

Regular value: present value or magnitude of control

Regulation output: Magnitude of reference

Control element: Trigger

Regulated body: Field of regulation

Structure of regulation: It indicates how the reference instruments exert an influence on the magnitudes of control. It is defined by the way of action and the type of control systems. Examples of it are: 2 point regulators, 3 point regulators, continuous regulators, cascade regulators or multizone regulators.

Behaviour of the regulation: It is the form in which the regulators tend to influence in the physical magnitudes. These are the most common regulators with switch on/off commutator, PID regulators and adjustable regulators.

If you wish to view or print a selection of regulators/control systems from our catalogue click the PDF symbol
If you wish to view or print a selection of Regulators/Control Systems from our catalogue click the PDF symbol

Topseller in Measuring Instruments

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If you have any questions, call our offices on:
UK customers +44(0) 23 809 870 30
US customers (561) 320-9162

Below you will find an overview of the different product groups of measuring instruments

Absolute Humidity Meters
Alert Meters
Air velocity meters
Analyzers (Colour)
Analyzers (Combustion)

Analyzers (Gas)
Analyzers (Lan)
Analyzers (Noise)
Analyzers (Oxygen)
Analyzers (Ozono)

Cable detectors (electrical)
Cameras (Infrared Thermal Imaging)
Capacitance Meters
Coating Thickness Meters
Chlorine Meters
Clamp Meters
Climate Meters
Colour Meters
Clamp Meters
Conductivity Meters
Contact Thermometers
Current detectors

Data Loggers
Differential Pressure Meters
Digital Multimeters
Detectors (Humidity, Radiation, Voltage)
Dose Meters (Noise)

Dust particle analyzers

Electric Tester
Flow Meters Air
Flow Meters Gas
Force Gauges (digital)
Function generators
Frequency Meters
Gas Detector
Handheld Tachometers
Hardness Meters
Humidity Testers (Building material)
Indicator Sound Level
Indicator (Humidity)
Instruments (Environmental)

Impedance bridges
Infrared Thermometers
Insulation Meters
Lan Network Testers
Laser Distance Meters
Laser level
Laser meters
Laser thermometers
LCR Meters
Length Meters
Light Meters
Lux Meters
Material Thickness Meters
Measurement Devices (Force)
Measuring Meters (Distance)
Measuring Wheels
Meters (Combustion, Distance, Earth,
Energy, Environmental, Gas, Gloss, Ground pH, PowerPressure, Radiation, Salt, Temperature)
Modular signal Converters
Moisture Indicator

Multi-Parameter Photometers
Noise Meters
Ohm Meters
Oxygen Meters
Ozone Meters
Paper Moisture Meters

Phase rotation meters
Photovoltanic meters
Pitot tube air flow meters
Pocket pH-meters
Power Analyzers
Pressure Gauges
Quality Meters (Air)
Radiation Counters
Radioactivity meters
Reader (Temperature)
Recorders Data
Redox Meters
Relative Humidity Meters
Resistance Testers
Rotation meters
Roughness tester
Rotation meters
Roughness tester
Sensor (Temperature)
Signal converters
Signal Level Analyzers
Single-parameter Photometers
Sound Level Meters
Systems for Environmental
Stethoscopes (electronic)
Surface Thickness Meters

Telescope Meters
Temperature Probes
Testers Air
Testers Conductivity
Testers Earth
Testers Insulation
Testers Noise
Testers pH
Testers paper
Testers Sound
Testers Temperature
Thermal stress
Thermal Imaging Cameras
Thickness Meters
Torque meters

Ultrasonic Flow Meters

VDE tester
Vibration Meters
Video endoscopes
Voltage meters
Weather Stations
Wood (humidity)

Below you will find an overview of the different product groups of scales and balances

 Accurate scales
 Analytical scales
 Animal scales

 Baby scales
 Basic scales

 Bench scales

 Cask scales
 Crane scales
 Compact scales
 Counting scales

 Density scales
 Dosing scales

 Electronic scales

 Floor scales
 Force meter

 Hanging scales

 Hook scales
 Hopper scales
 Household scales
 Humidity scales

 Industrial scales
 Inventory scales

 Jewellery scales

 Kitchen scales

 Laboratory scales
 Lifting scales
 Load cranes
 Load scales

 Mechanical scales
 Micro scales
 Moisture scales
 Multifunction scales

 Package scales
 Pallet truck scales
 Pallet scales
 Paper scales
 Pharmacy scales
 Piece counting scales
 Platform scales
 Pocket scales
 Postal scales

 Precision scales
 Probe cutter

 Retail scales

 Scales for analysis
 Scales for carat
 Scales for colleges
 Scales for dentistry
 Scales for gold
Scales for people
 Scales for school
 Scales for transit

 Scales for weighing pallets
 Scales with a support
 Scales with counter
 Scales with software
 Shipping scales
 Spring scales
 Surface scales

 Systems (Hanging)

 Tabletop scales
 Thermo scales
 Trade scales

 Vehicle scales
 Verifiable scales
 Veterinary scales

 Water resistant scales
 Weighing hooks
 Weighing platforms
Weighing scales
 Weight indicator