Trek 158A User Manual

The Model 158A may be ordered as a kit which
includes all items listed below.

- Model 158A Charged Plate Monitor

- 150 mm x 150 mm (6” x 6”) Charged Plate

- 25 mm x 25 mm (1” x 1”) Charged Plate

- Walking Test Adaptor Assembly

- AC Adaptor, 24v / 1.7a / 2.1mm Plug

- USB Type A Male To USB Type B Male Cable 6ft

- Power Cord For AC Adaptor

- Custom Patch Cord, ST-BAN-PL9’,ST-BAN-PL

- Charged Plate Handle

- Mini-Tripod For Charged Plates

- Model 158A Custom Carry Case

Trek Model 158A

Charged Plate Monitor

The Trek Model 158A Charged Plate Monitor is the premier instrument
to evaluate the performance of air ionization systems. It features a
user-friendly large 7 inch screen that is active through either touch­screen control or corresponding function keys. The compact design
supports superior data collection and data storage capability. The data
is displayed in color and may be stored internally or can be easily
transferred to a USB flash drive or other USB device.
A charged-plate assembly is required and is sold separately (6 inch
charged-plate shown).

Key Specifications

! Monitored Voltage Range: 0 to ±1100 V DC or peak AC
! Bandwidth (-3 dB): DC to 80 Hz
! Decay Mode Thresholds: Programmable from 1 to ±1000 V in 1 V increments

Typical Applications Include

! Performance evaluation of air ionization systems
! ESD Test Equipment
! ESD Audit Equipment
! Material Dissipation Testing
! Site Specific Contacting Voltage Measurement
! Static Charge Monitoring
! Voltage measurement of floor materials and footwear in combination

with a person (ANSI ESD STM97.2 and IEC 61340-4-5)

Features and Benefits

Touch screen or function key control

!

Long battery life

!

User-friendly compact design with superior data collection and storage capability

!

Unique color graphics chart display

!

PC memory card port for ample data storage and easy data transfer

!

Programmable start and stop voltage for (+) and (-) decay time ionizer tests

!

0.1 V plate voltage resolution

!

Compliance to IEC 61340-5-1 and ANSI/ESD STM3.1

!

NIST-traceable Certificate of Calibration provided with each unit

!

TREK, INC. • 190 Walnut Street • Lockport, NY 14094 • USA • 800-FOR TREK

716-438-7555 • 716-201-1804 (fax) • www.trekinc.com • [e-mail]

Model 158A Specifications

Performance

Monitored Voltage Range

0 to ±1100 V DC or peak AC

Bandwidth (-3 dB)

DC to 80 Hz

Zero Stability (referred to
plate voltage)

Drift with Time (no incident

ion flow)

Less than 6 V/minute
Drift with Temperature

Less than 10 mV/°C, noncumulative

Decay Mode Thresholds

Start Voltage

Programmable from 1 to ±1000 V in 1 V
increments

Start Accuracy

Within ±1 V of programmed start voltage

Stop Voltage

Programmable from 0 to ±999 V in 1 V
increments

Stop Accuracy

Within ±1 V of programmed start voltage
or ±0.2 V if set less than or equal to 90 V

Decay Timer

Resolution

0.1 sec., from 0.1 sec. to 999.9 sec.,
resolution 0.1 sec

Voltage Monitor Output

Voltage Monitor Output

A BNC proving and low voltage replica of
the plate voltage

Scale Factor

1/200th of the plate voltage

DC Accuracy

Better than 0.1% of full scale

DC Offset

Less than ±10 mV

Output Noise

Less than 10 mV rms*

Output Impedance

Less than 0.1 W

Features

LCD Color Display (with
contrast adjustment).
Navigate via touch-screen
or function keys

7 inch LCD touch-screen displays
graphical readouts, numeric data,
informational data, programming
parameters and retrieved data

Analysis Resolution

14 bits

Mode Select/Programming

Allows multiple operational and
programming options. Can be preset to
perform a number of automated tests and
is available to store or retrieve previously
defined test parameters. Test locations
and results can be saved and retrieved
for future reference.

Ion Collecting Plate
(standard option)

Meets ANSI/ESD-STM3.1 requirements
Power ON-OFF

A momentary push-button

Float Mode, (+) Decay
Mode, or (-) Decay Mode

Performs float voltage and decay time
EOS/ESD measurements utilizing
parameters, guidelines, and standards
set by the EOS/ESD Association

Features (cont.)

For (+) Decay and
(-) Decay Modes

The charged-plate is charged to a voltage
level above the programmed (+) or (-) start
voltage value. The plate is allowed to decay
toward zero due to the ion impingement on
the plate. The time required for the plate to
decay from the programed start voltage to the
programed stop voltage is displayed on the
timer.

For Float Mode

The charged-plate monitor is reset to 0 V ±0.5
V. The plate is allowed to “float” to a voltage
level dictated by ion impingement on the plate.

USB Flash Drive
USB Host

USB host port allows information to be saved,
retrieved and exchanged.

Barcode Scanner
(Optional)

A barcode scanner can be used to input
ionizer serial numbers directly from the Model
158A

Electrical

Power Requirements

Internal NiMH battery or External

1.75 A, 2.1mm jack charger / eliminator

24V DC,

Battery Operating
Time

Greater than six hours of continuous operation

Mechanical

Dimensions

53 mm H x 226 mm W x 187 mm D
(2.1” H x 8.9” W x 7.4” D)

Weight

2.2 kg (4.9 lb)

Voltage Monitor
Connector

BNC connector (3 meter length maximum)
Ground Receptacle

Binding ground post

Cable from
Instrument to
Floating Plate

Coaxial type; diameter is 4.95 mm (0.195”);
length is 3 meters (10 ft)

Operating Conditions

Temperature

5°C to 35°C (41°F to 95°F)

Relative Humidity

To 80%, non-condensing

Supplied Accessories

Operator’s Manual

AC Adapter (100 to
265 V AC)

PN: 24021

PN: F5058R

Ion Collecting Plates (order separately)

150 mm x 150 mm
(6” x 6”) plate

17397

25 mm x 25 mm
(1” x 1”) plate

17375

Optional Accessories

Charged Plate Tripod

PN: DK142

Walking Test Adapter

CN: 1K062

Barcode Scanner

PN: M1041R

INTRODUCTORY SPECIFICATIONS

*Measured using the true rms feature of the HP Model 34401A digital multimeter

Measurement and Power Solutions

Copyright ã 2013 TREK, INC. All specifications are subject to change. 1332/JRB

www.trekinc.com

TM