PROSTAT electrostatic field strength meter from the United States

Product Overview

The PFK-105 ionization test kit is a portable integrated testing system launched by Prostat, consisting of four core components: PFM-711B electrostatic field strength meter, CPM-7200B charging board monitoring device, PCS-730B ± 1 kV charger, and PDT-740B static decay timer. This kit is mainly used to test and evaluate the performance of ionization equipment (such as ion fans/ion rods) in industrial environments, including measuring two key indicators: ion equilibrium voltage (offset voltage) and discharge time.

This kit complies with the ionization standards ANSI/ESD S3.1 (test methods) and ANSI/ESD SP3.3 (periodic validation) of the ESD Association for ionizer balance adjustment and decay time measurement. In addition, it can also be used for measuring the generation and attenuation of body voltage, as well as evaluating the electrostatic properties of ionizers and packaging materials.

core component

PFM-711B electrostatic field strength meter

PFM-711B is a handheld electrostatic field measuring instrument mainly used for electrostatic investigation and surface polarity measurement of objects. Its core design adopts a stable chopper structure, which can measure in environments with ionized air without drift. The shell of the field strength meter is made of conductive material to provide grounding reference for the measurement circuit. During measurement, the measurement accuracy can be ensured by grounding with a wrist strap or a 10mm snap button on the back.

PFM-711B Technical Specifications:

CPM-7200B charging board monitoring device

CPM-72B is a 3.25-inch by 3.25-inch stainless steel isolation plate component that can be directly connected to the PFM-711B field strength meter, converting the field strength meter into a portable battery powered charging board monitoring system. When used in conjunction with the PCS-730B charger, performance evaluation of air ionization equipment can be achieved.

CPM-720A (early model)/720B Technical specifications:

PCS-730B ± 1 kV charger

PCS-730B is a portable electrostatic charger used to charge the CPM-72B charging pad to ± 1000 V for measuring the discharge time of ionizers in accordance with ANSI/ESD S3.1 and ANSI/ESD SP3.3 standards. After charging is completed, the charger automatically reduces its output to avoid overcharging the charging board.

PCS-730 (Type B) Technical specifications:

PDT-740B Static Attenuation Timer

PDT-740B is an electronic timer specifically designed for measuring the discharge time of ionizers. When used in conjunction with the PFM-711B field strength meter and PCS-730B charger, it can measure the discharge time of the ionizer - decay from ± 1000 V to below 100 V (in accordance with ANSI/ESD S3.1 standards), and further measure the time for the material to decay to below 50 V or below 10 V. There is a cut-off voltage selection switch on the timer panel, and users can choose to stop timing at three voltage thresholds of 10 V, 50 V, and 100 V.

PDT-740B Technical Specifications:

PFK-100H instrument bracket

The PFK-100H bracket can combine the PFM-711B field strength meter, CPM-72B charging board, and PDT-740B decay timer into a handheld unit, making it easy to simultaneously measure the offset voltage and discharge time of ionization equipment during on-site testing.

Comprehensive functions and testing methods

Measurement of offset voltage (equilibrium voltage) of ionizer

According to the requirements of ANSI/ESD SP3.3 standard, ionization equipment needs to be regularly validated to ensure continuous maintenance of appropriate ion balance. The procedure for PFK-105 to perform this test is as follows: Connect the CPM-72B charging board to the PFM-711B field strength meter, place the assembly within the airflow range of the ion fan or ion rod, and read the voltage value displayed on the PFM-711B display screen, which is the current equilibrium voltage (offset voltage) of the ionizer. This value represents the degree of balance between the positive and negative ion outputs of the ionizer.

Discharge time measurement

Discharge time is a key indicator for measuring the electrostatic neutralization ability of an ionizer, which characterizes the time required for the ionizer to drop a charged object from an initial voltage to a termination voltage. The test procedure is as follows: use the PCS-730B charger to charge the CPM-7200B charging board to ± 1000 V; place the charging board within the ionizer airflow range and start the PDT-740B timer at the same time; The timer stops counting from the moment the voltage reaches the selected voltage threshold (100 V, 50 V, or 10 V) and directly displays the decay time. This method complies with the specifications of ANSI/ESD S3.1 standard.

Application scenarios

• EPA (Electrostatic Protection Area) Environmental Maintenance VerificationPeriodically verify the ion balance state and discharge performance of the ionization fan and ionization rod to ensure compliance with ESD control requirements

• Installation and acceptance of ionization equipmentInitial performance evaluation of newly installed or repaired ionization equipment

• ESD Compliance Review and AuditPeriodic compliance verification and audit records of ESD control facilities in accordance with ANSI/ESD S3.1 and ANSI/ESD SP3.3 standards

• Packaging material evaluationEvaluate the voltage generation and attenuation performance of static dissipation materials, anti-static packaging, and static shielding materials

• Body voltage testMeasure the accumulation and dissipation time of body voltage during the walking or operation process of the operator, and evaluate the effectiveness of the personal grounding system

• Research and Development and Product Quality ControlQuality control testing of ionization equipment performance in sensitive device processing areas in electronic component production environments

• Automatic analysis system integrationPFK-105 can be paired with an X-Y plotter, analog data recording device, or PGA-710B automatic analysis system to record and analyze measurement data and generate reports

Summary of Technical Specifications

The kit includes content

• PFM-711B electrostatic field strength meter (1 unit)

• CPM-7200B charging board monitoring device (1 unit)

• PCS-730B ± 1 kV charger (1 unit)

• PDT-740B static decay timer (1 unit)

• PFK-100H Instrument Bracket (1 piece)

• Molded carrying case (with foam insert) (1 piece)