CharlesWater 99152 Installation guide

Unit 17. Millbrook Business Park, Sybron Way • Crowborough, East Sussex TN6 3JZ United Kingdom
Phone: [phone], Fax: [phone] • E-mail: [e-mail], Internet: Charleswater.co.uk
PPE-5084.E September 2007 Page 1 of 4
Figure 1. Charleswater 99152 Ionisation
Test Kit
Description
The Charleswater Ionisation Test Kit
allows the 99150 Digital Static Field
Meter to be used to monitor the offset
voltage (balance) of ionisation
equipment. The test kit also includes a
Charger used to place a ±1000V charge
on the 99153 Conductive Plate, making
it possible to also measure the
discharge time of air ionization
equipment per ANSI/ESD SP3.3
Periodic Verification of Air Ionizers. The
99152 Ionisation Test Kit was designed
to be used in conjunction with the
99150 Digital Static Field Meter
(included), providing a highly portable
and cost effective means of verifying
the performance of a wide variety of
ionization equipment.
NOTE: The 99150 Digital Static Field
Meter is designed to operate only with
the 99152 Ionisation Test Kit. It is not
compatible with other brands.
The Charleswater Ionisation Test Kit
has been designed to make
measurements that correspond to those
made by using a charged plate analyzer
and ANSI/ESD S3.1. The Ionisation
Test Kit provides convenience and
portability per ANSI/ESD SP3.3 Periodic
Verification of Air Ionizers. We
recommend Charleswater’s 99096
Charged Plate Analyser if precise
measurements are required.
The Ionisation Test Kit includes a slide-
on Conductive Plate, a ±1000 volt
Charger and a durable thermoplastic
carrying case with custom cut-outs for
all of the above components along with
the model 99150 Digital Static Field
Meter.
“When any object becomes
electrostatically charged, there is an
electrostatic field associated with that
charge. If an ESDS [ESD sensitive]
device is placed in that electrostatic
field, a voltage may be induced on the
device. If the device is then
momentarily grounded, a transfer of
charge from the device occurs as a
CDM [Charged Device Model] event. If
the device is removed from the region of
the electrostatic field and grounded
again, a second CDM event will occur
as charge (of opposite polarity from the
first event) is transferred from the
device.” (Handbook ESD TR20.20
section 2.7.5 Field Induced Discharges)
Compliance verification should include
periodic checks with a static field meter
to determine if high charging material is
present in the ESD protected area. All
packaging and other materials that may
be electrostatic generative to 2,000 volts
must be kept a minimum of 30.5 cm
from ESD sensitive items at all times.
“In order to mitigate field-induced CDM
[Charged Device Model] damage, the
ESD program shall include a plan for
the handling of process-required
insulators. If the field exceeds 2,000
volts/inch, steps shall be taken to either:
A. Separate the insulator from the ESD-
sensitive device by a distance of 30
cm (12 inches); or
B. Use ionization or other charge
mitigating techniques to neutralize
the charge.” (ANSI/ESDS20.20
section 8.3)
Ionisation Test Kit
Operation and Maintenance
TECHNICAL BULLETIN
© 2007 CHARLESWATER LTD.
Packaging
1 Digital Static Field Meter
1 Conductive Plate
1
Charger
2 9V Alkaline Batteries
1 Cord with 2.5mm Mono Plug
1 Carrying Case
1 Certificate of Calibration
Operation
TAKING OFFSET VOLTAGE
(BALANCE) MEASUREMENTS
The Ionisation Test Kit has been
designed to match the compact size
and hand held convenience of the
Digital Static Field Meter. Use the
following procedure to verify the offset
voltage (balance) of air ionisation
equipment. This quick and easy
procedure will help determine if the
piece of ionisation equipment is working
within the manufacturer's specifications
or user requirements. It is extremely
important that ionisers be checked
regularly for offset voltage (balance)
and discharge times. An ioniser
operating in an out-of-balance state
can damage sensitive electronic
componets or assemblies.
INSTALLING THE ISOLATED PLATE
ASSEMBLY
The Digital Static Field Meter’s case has
two slots along its slides. The top slot is
closest to the front of the instrument.
Slide down the tabs of the Conductive
Plate plate into the top slot of the meter
case as far as they go (see Figure 2).
Made in America
Figure 2. Installing the 99153
Conductive Plate

ZERO THE DIGITAL STATIC FIELD
METER
Turn on the meter with the ON/OFF
slide switch. Press the push button
down so that it is in the lower or
MEASURE position. Make a connection
between the Conductive Plate and the
meter case either through your finger or
a test lead. Point the meter toward a
GROUNDED metal surface. If the
display does not read “0.00”, adjust the
ZERO knob until the display reads
“0.00”. Although you must be careful
not to contact the recessed sensor
plate, the amount of spacing between
the instrument and the target is not
critical when zeroing the instrument.
NOTE: For accurate measurements, the
Field Meter should be grounded. The
meter has a conductive case that
provides a ground reference for the
measuring circuit. Alternatively, the
person holding the meter should be
properly grounded.
MAKING A MEASUREMENT
Locate the Test Kit in an ionised
environment at the appropriate distance
from the device under test. The static
field displayed is the actual balance of
the ioniser or voltage offset. If the
numeral “1” appears on the left side of
the display, the meter’s range of 20 kV
per inch has been exceded. (See
Figure 3)
NOTE: When testing pulsed ionizer
systems, the voltage displayed is
constantly changing. This pulse rate
may be faster than the display update
rate of the Field Meter, therefore the
displayed voltage is an average of the
actual voltage. The output of the
fieldmeter is useful in this situation for
more accurate measurements.
HOLDING LAST READING
Press the MEASURE/HOLD pushbutton
so that it releases to the upper or HOLD
position. This will freeze the reading
from the object on the display and
allows the operator to move the meter
where it may be more easily read, or
saved for later reference. In the HOLD
position the red LED will illuminate. The
analog output signal is also held.
Unit 17. Millbrook Business Park, Sybron Way • Crowborough, East Sussex TN6 3JZ United Kingdom
Phone: [phone], Fax: [phone] • E-mail: [e-mail], Internet: Charleswater.co.uk
PPE-5084.E Page 2 of 4 © 2007 CHARLESWATER LTD.
Per ESD TR53-2006 Compliance
Verification of ESD Protective
Equipment and Materials Air Ioniser Test
Procedure Initial Test Setup
“Measurements should be made at the
location where ESD sensitive items are
to be ionised. Air ioniser heaters and
air filters (if so equipped) should be left
in their normal conditions during test.”
TAKING DISCHARGE TIME
MEASUREMENTS
In order to verify that an ioniser is
operating properly it is also important
that its ability to neutralize or discharge
static electricity is measured. The
following procedure will measure an
ioniser's discharge time.
OPERATING THE CHARGING UNIT
The Charger has a momentary rocker-
switch that powers the unit. Holding the
switch forward / backward supplies
power to the output terminals.
Thousands
Hundreds
Tens
Figure 4. Reading the Digital Static
Fieldmeter
Figure 3. Auditing ionisation equipment
with the Digital Static Field Meter and
Conductive Plate
ANALOG OUTPUT
The “RECORD” output jack located on
the face of the meter accepts a
standard 2.5mm monaural phone plug
and is provided so the output of the
Digital Static Field Meter may be
connected to an oscilloscope, strip chart
recorder, external meter or other device.
Use the included cord to achieve a
connection between the field meter and
alternate measuring instrument. ±10
mV at this jack corresponds to ±1 kV.
Output Contact
Rocker Switch
FRONT VIEW
BACK VIEW
Figure 5. Charger features and
components
Touch Plate
Battery
Compartment
OUTPUT CONTACTS
The output contact is connected to an
internal power source. When the touch
plate located underneath the unit is
connected to ground, the output contact
will provide a charge of the indicated
polarity. The charger is designed so
that an operator can press the power
button and touch the touch plate
simultaneously with the fingers of the
same hand.

Unit 17. Millbrook Business Park, Sybron Way • Crowborough, East Sussex TN6 3JZ United Kingdom
Phone: [phone], Fax: [phone] • E-mail: [e-mail], Internet: Charleswater.co.uk
PPE-5084.E Page 3 of 4 © 2007 CHARLESWATER LTD.
POLARITY SELECTION
The top of the rocker switch is labeled
“+”, and the bottom is labeled “-”. To
provide a POSITIVE voltage output,
touch the plate located underneath the
charger, and press the switch forward at
the same time. To provide a NEGATIVE
voltage output, touch the plate located
underneath the charger, and press the
switch downward at the same time.
GROUNDING - IMPORTANT!
For the charger to work correctly, the
operator and the field meter must be
properly grounded. A ground path to
the touch plate must exist.
IONIZER DISCHARGE TIME
MEASUREMENTS
Use the field meter with the conductive
plate in the appropriate location for
measurements.
POSITIVE DISCHARGE TIME
MEASUREMENT
To provide a POSITIVE voltage output,
touch the plate located underneath the
charger, and press the switch forward at
the same time. Momentarily touch the
charger’s output terminal to the
conductive plate attached to the field
meter. The meter reads approximately
+1.10kV. By using a stop watch or
other timing device, determine the time
needed for the voltages to decrease
from +1.10kV to +0.10kV. This is the
positive discharge time.
NEGATIVE DISCHARGE TIME
MEASUREMENTS
To provide a NEGATIVE voltage output,
touch the plate located underneath the
charger, and press the switch downward
at the same time. Momentarily touch
the charger’s output terminal to the
conductive plate attached to the field
meter. The meter reads approximately -
1.10kV. By using a stop watch or other
timing device, determine the time
needed for the voltages to decrease
from -1.10kV to -0.10kV. This is the
negative discharge time.
IMPORTANT: A ground path must be
provided between the touch plate of the
Charger and the ground reference of
the Field Meter and Conductive Plate.
This is normally provided by holding the
Charger in one hand and the Field
Meter with Conductive Plate in the
other.
Calibration
The overall accuracy of the Ionisation
Test Kit and the Digital Static Field
Meter is ±5% nominal. The Digital
Static Field Meter is factory calibrated.
If for any reason you believe the meter
is not working correctly, please contact
Charleswater Customer Service .
CAUTION - There are no user
serviceable parts. Any unauthorized
service will void the warranty and
result in additional repair charges.
Maintenance
BATTERY REPLACEMENT
The Digital Static Field Meter and
operates from a standard 9 VDC
alkaline battery. Battery life is in excess
of 30 hours under normal use. When
the battery voltage drops below 6.7
volts, a battery symbol will appear in the
display. To change the battery, slide the
battery cover down at the back of the
meter and remove the battery from the
battery clip. Replace the battery with a
fresh one and reinstall the battery cover.
The battery should be removed from the
meter if its is to be stored for an
extended period of time.
The battery in the Charger should be
replaced annually and whenever you
plan an extended period of unattended
monitoring.
CLEANING
It is important to keep the insulators on
the adapter plate clean and free of
contaminates that may cause surface
leakage. To test the performance of the
adapter plate, charge the plate and note
the discharge rate in a non-ionized
area. The self discharge rate to 10% of
original voltage should not be less than
five minutes.
Figure 6. Taking decay measurements
The area around the aperture of the
Digital Static Field Meter must be kept
clean to ensure accurate, drift-free
readings. Never touch the aperture with
anything. To remove dust or other
particulate matter, use low-pressure
instrument-grade air. To remove more
severe contamination, spray or flush
with the smallest practical amount of
clean technical-grade of isopropyl
alcohol. Then allow the instrument to
air dry for several hours.
Specifications
Digital Static Field Meter
Display:
3.5 digits, 9.5mm digit height LCD
Response:
<1 sec., 10% to 90% equivalent to 5Hz
output
Range:
±0.00 to ±19.99 kV/25mm (kV/inch)
Accuracy:
±5% of displayed value
Environment:
0 - 50°C at 85% RH (non-condensing)
Analog Output:
2.5mm phone jack/plug
±10 mV corresponds to ±1 kV
Power:
9 VDC alkaline battery
Battery life in excess of 30 hours
Size:
6.1 cm x 10.7 cm x 3.3 cm
Weight:
0.14 kg (with battery)
Conductive Plate
Plate Capacitance:
13 picofards ± 2 picofards
Range:
0 to ± 2kV, higher voltages may be
measured
Grounding:
Connection through conductive case
of Digital Static Field Meter
Weight:
0.04 kg
Charger
Output:
1100VDC monimal, <1:A Max.
Output Terminals:
Banana / acorn assembly

Load Regulation:
Better than 8% NL to FL where FL =
10E9 Ohms
Environment:
10 - 30°C (50 - 86°F) at 10-80% RH
(non-condensing)
Power:
9 VDC alkaline battery
30 hours battery life
Size:
8.9 cm x 6.4 cm x 2.5 cm
Weight:
0.079 kg
Limited Warranty
Charleswater expressly warrants that for a period
of one (1) year from the date of purchase,
Charleswater Ionisation Test Kits will be free of
defects in material (parts). Within the warranty
period, the material will be tested, repaired or
replaced at Charleswater’s option, free of charge.
Call Customer Service at 00 44 (0) 1892-665313
for a Return Material Authorisation (RMA) and for
proper shipping instructions and address. You
should include a copy of your original packing slip,
invoice, or other proof of purchase date. Any unit
under warranty should be shipped prepaid to the
Charleswater factory. Warranty replacements will
take approximately two weeks.
Warranty Exclusions
THE FOREGOING EXPRESS WARRANTY IS
MADE IN LIEU OF ALL OTHER PRODUCT
WARRANTIES, EXPRESSED AND IMPLIED,
INCLUDING MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE
WHICH ARE SPECIFICALLY DISCLAIMED.
The express warranty will not apply to defects
or damage due to accidents, neglect, misuse,
alterations, operator error, or failure to properly
maintain, clean or repair products.
Limit of Liability
In no event will Charleswater or any seller be
responsible or liable for any inury, loss or
damage, direct or consequential, arising out of
the use of or the inability to use the product.
Before using, users shall determine the
suitability of the product for their intended use,
and users assume all risk and liability
whatsoever in connection therewith.
Unit 17. Millbrook Business Park, Sybron Way • Crowborough, East Sussex TN6 3JZ United Kingdom
Phone: [phone], Fax: [phone] • E-mail: [e-mail], Internet: Charleswater.co.uk
PPE-5084.E Page 4 of 4 © 2007 CHARLESWATER LTD.