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W-20-TRMS Digital Voltmeter
digital voltmeter with RS-232 interface, software. The real effective value can be measured 

The W-20-TRMS digital voltmeter has an indicator with diverse symbols for indicating different functions, as well as two warning symbols: one to show when the fuse is damaged and another one to let you know that the condenser is downloaded. In the digital voltmeter, cracks are indicated according to the selected measurement range. An alarm for errors and an acoustic signal are additional options. This voltmeter will also determine capacitance, frequency and temperature. Software and data cable are included in the delivery. There is another model of voltmeter with multiple functions, graphics, interface and software (multimeter, oscilloscope, logic analyser, etc.) which can be found here. Another similar voltmeter which is easier to use is PCE-DM 22 Voltmeter. At this link you will find an overview of all the different voltmeters available at PCE Instruments.

 - 3 ¾ positions and high contrast LCD display        (71 x 49 mm); maxi. 4000
 - Water/dust resistant housing
 - Measurement of the real effective value
 - Overload protection in the whole range
 - RS-232 C interface and software for Windows      95/98/2000/NT/ME/XP
 - Data Hold and relative value functions
 - Acoustic alarm
 - Diode test function
 - Automatic/hand selection
 - Measurement in % of operative cycles
 - Security: IEC-1010-1; CAT II 1000 V/CAT 600 V
 - Delivery content: RS-232 interface cable,             software, hitching unit, testing cable, K               thermal sensor, replacement fuse, battery and      user manual.

Digital voltmeter with RS-232 interface and software.
W-20-TRMS digital voltmeter with RS-232 interface and software to transfer data to a computer.

Technical specifications:
DC Voltage 400 mV
4 V
40 V
400 V
1000 V
± 0.3 % + 5 dgt.
± 0.1 % + 5 dgt.
± 0.1 % + 5 dgt.
± 0.1 % + 5 dgt.
± 0.5 % + 5 dgt.
100 μV
1 mV
10 mV
100 mV
1 V

AC Voltage

400 mV
4 V
40 V
400 V
700 V
± 1.5 % + 5 dgt.
± 1.0 % + 5 dgt.
± 1.0 % + 5 dgt.
± 1.0 % + 5 dgt.
± 1.0 % + 5 dgt.
100 μV
1 mV
10 mV
100 mV
1 V

DC Current

 400 μA
    4 mA
  40 mA
400 mA
     20 A
± 1.2 % + 10 dgt. 
± 1.2 % + 10 dgt.
± 1.5 % + 10 dgt.
± 1.5 % + 10 dgt. 
± 2.0 % + 10 dgt.
0.1 μA
1.0 μA
10 μA
100 μA
10 mA

AC Current

400 μA
   4 mA
  40 mA
400 mA
     20 A
± 1.5 % + 10 dgt.
± 1.5 % + 10 dgt.
± 1.5 % + 10 dgt.
± 1.5 % + 10 dgt.
± 2.0 % + 10 dgt.
- 0.1 μA
- 1 μA
- 10 μA
- 100 μA
- 1 mA

Resistance

0 Ω/4/40/400 kΩ/4/40 MΩ
± 1 % + 5 dgt. - 100 mΩ
Capacitance 4/400 nF/4/40/100 μF
± 3 % + 10 dgt. - 10 pF
Frequency 10 Hz ... 10 MHz
± 0.1 % + 2 dgt. - 10 mHz

Temperature

-20 °C ... +1370 °C
± 3 % + 5 dgt. - 0.1 °C
Over voltage CAT II 1000 V/CAT III 600 V
Power  9 V battery
Dimensions 88 x 178 x 33 mm
Weight 315 g
Usage of the W-20-TRMS digital voltmeter

With this instrument printed circuit assembly can be checked by testing the different components and verifying conduction. The voltmeter can be also used in the electrical sector due to the fact that it is possible to select a higher voltage range.

W-20-TRMS Digital voltmeter testing voltage.

Delivery content:
1 x W-20-TRMS digital voltmeter, 1 x RS-232 interface cable, 1 x software, 1 x hitching device, 1  x testing cable, 1 x K thermal sensor, 1 x replacement fuse, 1 x battery, and user manual

Optional devices

- SO calibration certificate
For companies that wish to include this device in their set of internal testing tools or for annual recalibrations. The ISO certificate includes a laboratory calibration and a control document with all the measurement values.
ISO calibration certificate can be carried out in voltage (AC/DC) or in current.

W-20-TRMS Digital Voltmeter: ISO Calibration certificate

- Amp clamp adaptor
Adaptor for indirect measurement of current up to 1000 A without interrupting the cable.
   Range: 200/1000A DC/AC
   Accuracy: ±1.5/2%
   DCA zero reset
   Dimensions: 190 x 64 x 33 mm
   Maximum diameter of cable: 33.5 mm

W-20-TRMS Digital Voltmeter: Amp clamp adaptor.
Revolution adaptor
Adaptor with revolutions sensor and 1 m cable.
For optical measurement of revolution between 100 and 20,000 RPM in two ranges.
   0.1 mV DC/1 RPM   (range 1)
   0.1 mV DC/10 RPM (range 2)
   Dimensions: 190 x 73 x 37 mm
W-20-TRMS Digital Voltmeter: Revolution adaptor.
 - Pressure adaptor
Adaptor with pressure sensor and 1 m cable.
For absolute measurement of pressure between 3.5 and 3500 kPa.
   Accuracy: ±1% (up to 1700 kPa); ±2% (up to        2400 kPa) and ±5% (up to 3500 kPa)
   Resolution: 0.1/1 kPa
   Dimensions: 100 x 50 x 25 mm; 1/4" sensor
W-20-TRMS Digital Voltmeter: Pressure adapter.

 - Humidity adaptor
  Adaptor with humidity sensor in a handle and        with 1 m cable.
   Range: 10 to 95% r.h.
   Accuracy: ±3% r.h.
   Resolution: 0.1% r.h.
   Dimensions: 100 x 50 x 25 mm

W-20-TRMS Digital Voltmeter: Humidity adaptor.

 - Light adaptor
   Adaptor with light sensor and 1m cable.
   Three rages: 0 to 2000/0 to 20,000 and 0 to           50,000 lux
   Accuracy: ±5%
   Resolution: 1, 10, 100 lux
   Dimensions: 100 x 50 x 25 mm

W-20-TRMS Digital Voltmeter: Light adaptor.
 - Air velocity adaptor
   Adaptor with an air velocity sensor and 1 m          cable.
   Range: 0.2 to 30 m/s;
   Accuracy: ±2%
   Resolution: 0.1 (m/s; km/h; knots)
   Dimensions: 100 x 50 x 25 mm
W-20-TRMS Digital Voltmeter: Air velocity adaptor.
 - Sound adaptor
   Adaptor with sound sensor and 1 m cable.
   A-weighting; can be externally calibrated             (PCE-SC 41 calibrator)
   Ranges: 30 to 130 dB (in three ranges)
   Accuracy: ±1.5 dB (IEC 651 clase II)
   Dimensions: 107 x 53 x 29 mm
W-20-TRMS Digital Voltmeter: Sound adaptor.
- EMF adaptor
   Adaptor with EMF sensor and 1 m cable.
   Range: 0 to 20 microTesla/200 milliGauss
   Accuracy: ±4%
   Resolution: 0.1 µTesla/1 milliGauss
   Bandwidth: 30 to 300 Hz
   Dimensions: 100 x 50 x 25 mm
W-20-TRMS Digital Voltmeter: EMF adaptor.

technical specifications for the W-20-TRMS Digital Voltmeter.

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Here you will find an overview of all the measuring instruments available at PCE Instruments.

Contact:
PCE Instruments UK Limited
Units 12/13 Southpoint Business Park
Ensign Way, Southampton
United Kingdom, SO31 4RF
Phone: +44 ( 0 ) 2380 98703 0
Fax: +44 ( 0 ) 2380 98703 0

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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 (Gas)
 Analyzers (Lan)
 Analyzers (Noise)
 Analyzers (Oxygen)
 Analyzers (Ozono)
 Anemometers
 Barometers
 Borescopes

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

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

 Earth meters
 Endoscopes
 Environmental Meters

 Fiberscopes
 Flow Meters Air
 Flow Meters Gas
 Force Gauges (digital)
 Frequency Meters

 Gas detectors
 Geiger Counter

 Handheld Tachometers
 Hardness Meters
 Humidity Testers
 (Building material)
 
Hygrometers

Indicator Sound Level
Indicators (Humidity)
Instruments (Environmental)

Impedance bridges
Infrared Thermometers
Isolation 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 (Distance)
 Meters (Ozone) 
 Meters (Gas) 
 Meters (Gloss)
 Meters (pH)
 Meters (Power)
 Meters (Pressure)  
 Meters (Radiation)
 Meters (Temperature)  
 Micrometers
 Microscopes
 Modular signal 
 Converters
 Moisture Indicator
 Multimeters
 Multi-Parameter    
 photometers

Noise Meters

 Odometers
 Ohm Meters
 Oscilloscopes
 Oxygen Meters
 Paper Moisture Meters
 Penetrometers
 Pitot tube air flow
 meters
 Pocket pH-meters
 Power Analyzers
 Pressure Gauges
 Pyrometers
 Quality Meters (Air)
 Radiation Counters
 Radioactivity meters
 Reader (Temperature)

 Recoders Data
 Redox Meters
 Refractometjpkkkcdc

 Relat. Humidity meters
 Rotation meters
 Roughness tester
 Salt Meters
 Sensor (Temperature)
 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)
Tester (Conductivity) Tester (Earth)
Tester (Electric)
Tester (Insulation)  Tester (Noise)
Tester (pH)
Tester Resistance Tester (Sound)
Tester (Temperature)
Thermal stress
Thermal Imaging Cameras
Thermometers
Thermocouples
Thickness Meters
Turdibity Meters

Ultrasonic Flow Meters

VDE tester
Vibration Meters
Video endoscopes
Voltage meters