Desco TB-3081 Istruzioni per l'installazione e il funzionamento

Employee Owned

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com

Body Voltage Meter

Installation, Operation and Maintenance

Description

The Desco 19431 Body Voltage Meter is a portable

measuring system that allows analysis of charge levels

accumulated on the human body according to ANSI/

ESD STM97.2. The Body Voltage Meter measurement

may be logged using internal memory. Logged

measurements can be exported and further reviewed on

a PC. Graphs of measurements can be displayed on the

LCD display for quick evaluation.

Each Body Voltage Meter is calibrated with accepted

procedures and standards traceable to the National

Institute of Standards and Technology (NIST) and

includes a NIST certificate.

June 2021

“A compliance verification plan shall be established to

ensure the organization’s fulfilment of the requirements

of the plan. Process monitoring (measurements) shall be

conducted in accordance with a compliance verification

plan that identifies the technical requirements to be

verified, the measurement limits and the frequency at

which those verifications shall occur. The compliance

verification plan shall document the test methods

used for process monitoring and measurements. If the

organization uses different test methods to replace

those of this standard, the organization shall be able

to show that the results achieved correlate with the

referenced standards. Where test methods are devised

for testing items not covered in this standard, these shall

be adequately documented including corresponding

test limits. Compliance verification records shall be

established and maintained to provide evidence of

conformity to the technical requirements. The test

equipment selected shall be capable of making the

measurements defined in the compliance verification

plan.” (EN 61340-5-1 clause 5.2.4)

Packaging

1 Body Voltage Meter

1 Walking Test Probe

1 Black 8-Pin DIN to USB Cable, 1.8 m long

1 Black Ground Cord with Crocodile Clip, 5 m long

1 Lanyard with Hook

1 Certificate of Calibration

Figure 1. Desco 19431 Body Voltage Meter

TECHNICAL BULLETIN TB-3081

Employee Owned

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com

Features and Components A. Settings Button: Press to enter SETTINGS mode.

B. Left and Right Buttons: Press to cycle through the

menus.

C. Cursor Button: Press to advance the cursor.

D. Exit Button: Press to power the meter ON and OFF.

This button is also used to exit SETTINGS and MENU

modes.

E. Start / Stop Button: Press to start and stop a

measurement. This button is also used to increase the

value of settings when in SETTINGS mode.

F. Ground Jack: Common point ground for the meter.

Connect the included black ground cord here.

G. Probe / PC Connector: Connect the included test

probe when taking measurements. Connect the included

DIN to USB cable when exporting data onto a PC.

H. Ground Jack: Common point ground for the meter.

Connect the included black ground cord here.

I. Ground Touch Plate: Touch to ground the operator

prior to taking body voltage measurements.

Settings Mode

Press and hold the Settings button for 1 second to enter

the SETTINGS mode. There are 4 menus available:

1. V RANGE

2. CLOCK

3. DISPLAY

4. °

Press the Left button to move to the previous menu.

Press the Right button to move to the next menu.

Press the Exit button to exit from SETTINGS mode.

V. Range Menu

Figure 2. Body Voltage Meter features and components

F G H

Adjust the voltage range for new and saved graphs.

Press the Cursor button to advance the cursor, and

press the Start / Stop button to increase the value.

NOTE: AUTO range is only available for saved graphs.

B B

Employee Owned

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com

Clock Menu Monitor Mode

Adjust the date and time settings. Press the Cursor

button to advance the cursor, and press the Start / Stop

button to increase the value.

Display Menu

Adjust the contrast of the LCD display (0 to 9). The

default contrast setting is 5. Press the Start / Stop

button to increase the value.

FMenu

Choose Celsius (

C) or Fahrenheit (

° F

) for the

temperature unit of measurement. Press the Start / Stop

button to toggle the setting.

Operation Modes

There are 5 operation modes available:

1. MONITOR

2. NEW

3. VIEW

4. CLEAR

5. COM

Press the Left button to move to the previous mode.

Press the Right button to move to the next mode.

Press the Start / Stop button to enter the selected mode.

Press the Exit button to exit the selected mode.

Allows on-the-go measurements without saving any

data.

New Mode

Records new graph.

View Mode

Views saved graphs.

Clear Mode

Deletes last or all saved graphs.

COM Mode

Exports data to PC using supplied 8-Pin DIN to USB

cable.

Employee Owned

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com

Operation

Using the Meter

1. Press the EXIT button to power the meter.

2. Hold the test probe and momentarily touch the

ground touch plate located on the back of the unit.

Figure 4. Momentarily touching the ground touch plate to

ground the operator

Installation

1. Remove the meter from the carton.

2. Connect the included ground cord to one of the

two ground jacks located at the top of the meter.

Connect the opposite end of the ground cord to

equipment ground.

3. Connect the test probe to the probe connector

located at the top of the meter.

4. Press the EXIT button to power the meter.

5. The meter is now ready for use.

Figure 3. Setup of the Body Voltage Meter

3. Verify the Body Voltage Meter is zeroed by toggling

to the MONITOR menu and reading the measured

value. It should be 0 V. Zero the Meter if required by

toggling to the ZERO menu.

Monitor Mode

1. Toggle to MONITOR mode on the meter, and press

the Start / Stop button.

2. The display will show the electrical potential present

on the probe.

3. A beeping sound (every second) indicates that the

meter is measuring. This is to ensure the unit is not

left in measuring mode unintentionally and cause

the battery to drain.

4. To stop the measuring process, press the Start /

Stop or Exit buttons.

Employee Owned

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com

Datalogger Mode

1. Toggle to NEW mode on the meter and press the

Start / Stop button.

2. After a 3 second count-down, the Body Voltage

Monitor will log a graph of the walking test.

3. The graph will show the positive and negative peak

voltages measured during the test.

Downloading Data to a PC

1. Download and install the WT Manager software.

2. Connect the Body Voltage Meter to a PC using the

included Black 8-Pin DIN to USB Cable.

3. Toggle to COM mode on the meter.

4. Run the WT Manager software and select the

appropriate port from the drop-down menu.

Figure 5. Using the Body Voltage Monitor

4. To stop the test, press the Start / Stop button.

5. Press the Left or Right buttons to scroll through the

graph for quick evaluation.

6. Press the Start / Stop button again to save or

discard the graph. Press Start / Stop button to save

or the Cursor button and Start / Stop button to

discard the graph.

Figure 6. Selecting a COM port using the WT Manager

software

Figure 7. Viewing the body voltage of an ungrounded

operator in the WT Manager software

Employee Owned

DESCO WEST - 3651 Walnut Avenue, Chino, CA 91710 • (909) 627-8178

DESCO EAST - One Colgate Way, Canton, MA 02021-1407 • (781) 821-8370 • Website: Desco.com

Specications

Voltage Range ±1050 V

Accuracy ±5 %

Resolution 1 V

Input Resistance 1014 ohms

Power Supply 6 AA alkaline batteries

Battery Auto-Shut O󰀨

Timer

10 minutes

Display Graphic LCD 128 x 64 pixel,

68 mm x 51 mm

Memory Capacity 10 graphs

Sample Rate 200 Hz

Max Total Graphs

Duration

2 minutes and 30 seconds

PC Interface USB

Operating Temperature 41 ºF to 85 ºF (5 ºC to 30 ºC)

Environmental

Requirements

Indoor use only at altitudes

less than 6500 ft. (2 km)

Maximum relative humidity of

80 % up to 85 °F (30 °C)

Dimensions

(meter)

9.6" x 5.1" x 2.4"

(243 mm x 130 mm x 60 mm)

Dimensions

(probe)

Ø 1.4" x 5.1"

(Ø35 mm x 130 mm)

Weight

(meter with batteries)

1.4 lbs (650 g)

Weight

(probe)

0.6 lbs (0.27 kg)

Country of Origin Italy

Limited Warranty, Warranty Exclusions, Limit

of Liability and RMA Request Instructions

See the Desco Warranty -

Desco.com/Limited-Warranty.aspx

Maintenance

Battery Replacement

Replace the batteries if the battery indicator on the Body

Voltage Meter begins blinking. Open the battery cover,

replace the 6 alkaline batteries, and close the battery

compartment.

Figure 9. Replacing the Batteries on the Body Voltage

Meter

Figure 8. Viewing the body voltage of a grounded

operator in the WT Manager software

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