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Instrument transformers
I
nstrument transformers are necessary for understanding physical quantities. Instrument transformers are those parts of a measuring chain which transform a physical quantity into an electric signal. Such quantities, as pressure, air humidity, temperature, sound pressure or light ainstrument transformers for gasre transformed into an analogue normalized signal (i.e. 0…10 V). One of the advantages of this transformation is flexibility, since many meters have to support normalized signal transformations. When instrument transformers are used, the evaluation unit should receive only the measurement range, so from that point, electrical quantities are calculated from electrical signals. It is also possible to send measuring magnitudes through long distances without any loss of information if certain normalized signals are considered. Some instrument transformers are additionally provided with a galvanic insulation between both input and output signal. Output signals can be selected with the help of a switch. On our site you will find instrument transformers to measure different quantities. Some instrument transformer can be set through a PC. If you have any questions regarding our instrument transformers, 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 with the instrument transformers and the rest of measuring instruments and scales available at PCE-Instruments.

You will find technical specifications of our instrument transformers at the following links:

instrument transformers for current Current instrument transformers for distance Distance instrument transformers for flow Flow
instrument transformers for force. Force instrument transformers for gas Gas instrument transformers for humidity Humidity
instrument transformers for light Light instrument transformers for pressure Pressure instrument transformers for sound Sound
instrument transformers for temperature. Temperature instrument transformers for vibration. Vibration instrument transformers voltage. Voltage
    instrument transformers universal. Universal    

 To change category, simply click on the respective image

Go from instrument transformers to probesinstrument transformersGo from instrument transformers to digital indicatorsGo from instrument transformers to logic modules

Nowadays instrument transformers are essential in both automation and control systems. Instrument transformers are needed when physical quantities are used for a process control. The reason is that it is necessary to record a large number of quantities. In addition to the most common quantities such as temperature or pressure, there are other parameters such as pressure, gas content or flow. For electronics to receive a readable signal, instrument transformers must convert the physical quantity to an electrical signal. To ensure flexibility, normalized signals are determined to be read by many meters.

Here you can see the instrument transformers functioning:
instrument transformers: Function

The use of an analogue normalized signal allows instrument transformers to be connected to the same analogue input of a digital display. The digital display should only be scaled, this means that digital display should indicate the value from instrument transformers as an electrical quantity corresponding to a physical quantity value. The next image shows the assignment of 4-20 mA output signal to a temperature range of  0 - 100 ºC:

instrument transformers: Graphics

Some instrument transformers have a flexible scale which allows the users to adjust the measurement range according to their needs. Apart from its flexible use, the normalized signal of 4-20 mA has other advantages such as connection cables from one device to another can be very long, it is possible to add diverse units of analysis to the same circuit, so a current signal from the transducer can be used in different Instrument transformerss. As even with the lowest measurement value of the current flows, users can use the 4 mA to feed sensors. Current below 4 mA indicates that there is something wrong with the analysis units. In order to read the measurement value in situ, some instrument transformers have a display. Other transducer models have relays which make a contact when limit values are exceeded.

If you wish to print a selection of the instrument transformers from our printed catalogue, click the PDF symbol.
If you wish to print a selection of instrument transformers from our catalogue, please click the PDF symbol.
 

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US customers (561) 320-9162

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

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

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

Anemometers
Barometers
Balances
Borescopes
Cable detectors (electrical)
Calibrators
Calipers
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
Densimeters
Detectors (Humidity, Radiation, Voltage)
Dose Meters (Noise)
Durometers

Dust particle analyzers

Electric Tester
Endoscopes
Fiberscopes
Flow Meters Air
Flow Meters Gas
Force Gauges (digital)
Function generators
Frequency Meters
Gas Detector
Gaussmeters
Handheld Tachometers
Hardness Meters
Humidity Testers (Building material)
Hygrometers
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
Magnetometers
Manometers
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)
Megohmmeters
Micrometers
Microscope
s
Modular signal Converters
Moisture Indicator

Multimeters
Multi-Parameter Photometers
Noise Meters
Odometers
Ohm Meters
Oscilloscopes
Oxygen Meters
Ozone Meters
Paper Moisture Meters
Penetrometers

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

Tachometers
Telescope Meters
Thermo-anemometers
Thermo-Hygrometers
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
Thermometers
Thermocouples
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