The Model PD06078 contains four (4) Electrostatic Voltmeters in a single enclosure.

Each channel features a measurement range of 0 to ±10 kV and accuracy better than 5% reading plus ±0.2% of full scale over the probe to surface separation distance of 15 to 30 mm.

Each channel of the Model PD06078 ESVM utilizes a DC stable electrostatic field chopper probe which can be remotely located and easily positioned within process equipment to provide highly accurate, noncontacting, spacing independent, voltage measurements in either ionized or non-ionized environments.

Trek

Four Channel Electrostatic Voltmeter

Trek developed the Model 800 Infinitron® for voltage measurement applications that demand virtually infinite loading impedance levels which are far beyond the reach of currently available high impedance voltmeter instruments.

• Measurement Range 0 to ±100 V DC or peak AC.

Accuracy

Better than ±0.1% of full scale.

Large Signal Bandwidth (200 V p-p) Greater than 100 Hz.

Small Signal Bandwidth (10 V p-p) Greater than 10 kHz.

Speed of Response (10% to 90%) Less than 3.5 ms for a 100 V step.

Input Impedance Resistance greater than 10E16 ohms.

Capacitance less than 10E-15 F.

Trek

Infinitron 800 - High Impedance Voltmeter

Model 320C Electrostatic Voltmeter is a versatile instrument, which is used for a variety of electrostatic applications including potential measurements, material evaluation and electrets studies.

The model 320C makes highly accurate, non-contacting measurement of electrostatic potentials of 1 mV to 100 V over a wide range of probe-to-surface distances.

Trek

Electrostatic Voltmeter - Model 320C

Model 323 Electrostatic Voltmeter performs highly sensitive voltage measurements using a variety of Trek probes with various aperture orientations 9side, end) and body types (round, square).

It is a versatile instrument used in a variety of applications including material evaluation and electrets studies, charging accumulation on disk drive assemblies, and other extremely sensitive ESD sensitive components.

• Measurement range: 0 to ±100 V DC or peak AC
  
• Sensitivity: 5 mV
  
• Speed of response: less than 300 ms for a 100 V step
  
• Drift spacing / null adjustment

Trek

Electrostatic Voltmeter - Model 323

Model 325 is ideal for applications in high-tech & semiconductor manufacturing, materials processing, materials science and R&D sectors. Electrostatic Voltmeter with Millivolt Resolution.

The Model 325 The Trek Electrostatic Voltmeter Model 325 is a versatile instrument used for performing non-contacting voltage measurements in application which include contact potential ( surface work function) determination, materials evaluation and electret studies.

The model 325 was specifically designed for high sensitivity applications to allow highly accurate, low noise, noncontacting measurement of electrostatic voltages of 0 to ±40V over a wide range of probe-to-surface distances.

Trek

Electrostatic Voltmeter - Model 325

Model 341B is a DC stable, precision electrostatic voltmeter for making non-contacting surface voltage measurements in the range of 0 to ±20 kV DC or peak AC.

Research and industrial applications include charge accumulation monitoring of the LCD production processes, monitoring surface potentials in the electrostatic painting process, research and development in the electrophotographic process, and measuring electrostatic potentials on polymers, rubber, fabrics and paper

• Measurement range: ±20 kV DC or peak AC
  
• Speed of response: less than 200µs for a 1 kV step
  
• Zero control for offset nulling

Trek

Electrostatic Voltmeter - Model 341B

Model 344 is a precision electrostatic voltmeter for making non-contacting surface voltage measurements in the range of 0 to ±2 kV DC or peak AC.

It uses a field-nulling technique for non-contacting voltage measurement that achieves DC stability and high accuracy even if the probe-to-surface spacing changes. This permits measurements of either stationary or moving surfaces without the need to establish fixed spacings to maintain accuracy. The patented probe design eliminates the need for close tolerance components. This significantly improves noise and drift performance, both in the presence of contaminating particulates and under conditions of high humidity and wide temperature ranges.

• Measurement range: 0 to ±2 kV DC or peak AC
• Speed of response: less than 3 ms for a 1 kV step
• Low noise & drift performance

Trek

Electrostatic Voltmeter - Model 344

odel 347 is a precision electrostatic voltmeter for making non-contacting surface voltage measurements in the range of 0 to ±3 kV DC or peak AC.

MIndustrial applications include surface voltage measurements of photoconductors or dielectric surfaces, charge monitoring in semiconductor production, and measuring electrostatic potentials on film, polymers and paper. It uses a field-nulling technique for non-contacting voltage measurement that achieves DC stability and high accuracy even if the probe-to-surface spacing changes. This permits measurements of either stationary or moving surfaces without the need to establish fixed spacings to maintain accuracy. The patented probe design eliminates the need for close tolerance components. This significantly improves noise and drift performance, both in the presence of contaminating particulates and under conditions of high humidity and wide temperature ranges.

• Measurement range: 0 to ±3 kV DC or peak AC
• Speed of response: less than 3 ms for a 1 kV step
• Superb noise & drift performance

Trek

Electrostatic Voltmeter - Model 347

Measurement range: 0 to ±2 kV DC or peak AC - Model 368A High-speed Electrostatic Voltmeter provides precision non-contacting measurement of the surface voltages associated with electrostatic imaging processes as employed by electrophotographic reproduction and laser printing industries.

Highly accurate electrostatic voltage measurements are also associated with applications such as photoreceptor research and semiconductor processing. The miniature sensor probes utilise a patented dual chopper design, which provides high speed, DC stable measurements with exceptional low noise an drift performance in wide temperature range conditions, under high humidity, and even in the presence of contaminating particulates.

Trek

Electrostatic Voltmeter - Model 368A

Model 370 is a precision electrostatic voltmeter for making non-contacting surface voltage measurements in the range of 0 to ±3 kV DC or peak AC.

The Model 370 uses a field nulling technique for non-contacting measurement that achieved DC stability and high accuracy even if the probe-to-surface spacing changes. This permits measurements of either stationary or moving surfaces without the need to establish fixed spacing to maintain accuracy.

Trek

Electrostatic Voltmeter - Model 370

Model 370TR is a precision electrostatic voltmeter for making non-contacting surface voltage measurements in the range of 0 to ±3 kV DC or peak AC.

Measurement range: 0 to ±3 kV DC or peak AC
The Model 370TR uses a field nulling technique for non-contacting measurement that achieved DC stability and high accuracy even if the probe-to-surface spacing changes. This permits measurements of either stationary or moving surfaces without the need to establish fixed spacing to maintain accuracy.

Trek

Electrostatic Voltmeter - Model 370TR

Model 400 Electrostatic Voltmeter represents the next generation of DC-stable non-contact, precision surface voltage measuring instruments.

It incorporates the exclusive Trek vibrating reed probe sensor and provides new features not previously available with other electrostatic voltmeter instrument. These features include: greater measurement accuracy, faster speed of response that is insensitive to distance, design accommodates a dual chopper or single chopper probe, noise null control to null the output noise. Model 400 addresses the need for a highly accurate static charge measurement and/or monitoring in applications such as manufacturing or research environments that are highly sensitive to static charge and/or electrostatic discharge events and the problems they cause.

Trek

Electrostatic Voltmeter - Model 400