ACL Staticide 450B Ionized Environment Electrostatic Locator User Manual
- June 9, 2024
- ACL Staticide
Table of Contents
ACL 450B Operation Manual Rev. Jan 10, 2022 MKB
ACL 450B Ionized Environment
Electrostatic Locator
OPERATION MANUAL
Meter is warranted for one year from the date of purchase on parts and
labor.
Calibration is recommended every twelve months.
DESCRIPTION
The ACL 450B Ionized Environment Electrostatic Locator is a pocket-sized, non- contacting static meter which produces consistently accurate readings and is easy to use. The ACL 450B features:
- Drift-free accuracy even in ionized environments
- Range: ±20kV @ 1 inch (25mm)
- Pulsing-beam range finder for always obtaining the correct 1-inch distance
- HOLD button to capture transient readings
- 0.375″ (9.5mm) LCD Display
With the ACL 450B, accuracy is unquestioned. When the range finder LED beams form a non-pulsing circle, the meter is indicating that you have positioned the unit at the correct distance (1 inch) from the target for readings up to 20kV. To read higher voltage, use the greater distances given in Specifications section.
For locations where it is hard to read the meter’s display, you can freeze the displayed number and then read it. Simply position the meter at the correct distance from the target and depress the pushbutton into the MEASUREMENT position. Depress again to the HOLD position to capture the measurement.
The ACL 450B’s chopper-stabilized circuitry is immune to ionization so accuracy is assured in all environments. For long-term monitoring, the front panel output jack provides easy interfacing with a recorder, oscilloscope, or automated data acquisition system.
OPERATION
1. Power ON:
Slide the power switch to the ON position and verify activity on the display.
The kV/Inch light will illuminate red when the meter is on, and the push
button is in the HOLD position.
With power ON, check the display. Battery low is indicated by all four decimal points illuminated. If low battery is indicated, replace the battery before use.
2. Ground Meter
Grounding (discharging) your body also discharges the instrument through its
dissipative case. If you are not wearing a grounded wrist strap, discharge
your body by touching a grounded metal object such as a water pipe, conduit,
or workbench. The meter can also be grounded by attaching a ground cable to
the snap on the back of the case and connecting the other end of the cable to
a known ground.
3. Zero adjust the instrument
Once grounded, with unit ON, point the sensor plate away from any charged
object and press the pushbutton so that it clicks into the lower MEASUREMENT
position. Do not touch sensor, but point it toward a known grounded surface at
1 inch until the concentric ring forms. Alternatively point the sensor into
free hand (this will shield the sensor from external fields). If the display
does not read 0.00, adjust the ZERO knob until the display reads 0.00. Once
set, the zero should not have to be reset unless the control has moved.
3. Set distance
For voltages between 19.99kV to +19.99kV, move the sensor plate of the
instrument toward the target surface. When the instrument is the correct
distance (1 inch) from the target, the projected range finder appears as a
stationary concentric ring. To read voltages of 20 kV, use the distances and
multiplying factors given under Range in Specifications.
4. MEASURE and HOLD
Once the meter is zeroed, point the sensor 1 inch from the object being
measured. Depress the MEASURE/HOLD push button so it releases to the upper
HOLD position. This will freeze the reading 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 light. The analog output signal is also held. The concentric rings will no longer be projected. When the push button is returned to the MEASURE position, concentric rings will be projected.
5. Turn the instrument OFF
Slide power button to the OFF position.
7. Display
If the numeral 1 appears on the left side of the 450B display, the meter’s
range of 20 kV per inch has been exceeded. When this occurs, move the meter
farther away from the object and multiply the reading by the distance away
from the object being measured. For example, if the meter is 2 inches (51mm)
from a surface with a 30kV charge, the display will indicate 15kV.
The measurement accuracy is dependent on a stable ground reference and the measuring distance plus the aspect ratio that relates the size of the object to be measured to the measurement distance. This aspect ratio should be at least 4:1 for best accuracy, i.e., the surface should be at least a 4-inch (102mm) square when measuring at a 1-inch (25mm) distance.
CAUTION:
If you bring the instrument (or any grounded object) too close to a charged
surface, an electrical arc may occur. To avoid this and take readings safely,
check the voltage/distance ranges given in Specifications. Always bring the
instrument toward a target surface from a distance of several inches. As the
distance closes, watch the display to be sure that the proper distance is
maintained for each voltage range.
SPECIFICATIONS
Display| LCD. 3½-digit numeric display, 0.375” digit height
Displays measure voltage in kV when measurement distance is 1 inch
---|---
Range| -19.99 kV to +19.99 kV at a distance of 1 inch (25mm).
Higher voltages may be measured at distances greater than 1 inch
Accuracy| ±5%
Controls| ON/OFF slide switch
MEASURE/HOLD pushbutton (latching push-ON/push-OFF)
ZERO adjustment knob
Analog Output| 2.5mm sub-miniature jack
Scaling is 100mV per kV
Full scale is -2V to +2V
Power| 9V DC alkaline battery. Battery life in excess of 30 hours. Reversal
protected
Size| 2.4” W x 4.2” L x 1.3” D (61x107x33mm)
Weight| 5 oz. (14.2g) with battery
Environmental| Operates at 0 – 50°C and 0 – 85% RH (non-condensing) Accuracy
unaffected by air ionization
ACL 450B DISTANCE CHART
Distance| Reading| Multiply| Volts| kV| Test
Field| Accuracy
---|---|---|---|---|---|---
1″| 1.00| | 1000 v| 1 kV| 4”| 5%
| 10.0| | 10,000 v| 10 kV| |
| 19.99| | 20,000 v| 19 kV| |
4″| 1.00| 2 x 1000| 2000 v| 2 kV| 16”| 10%
| 10.0| 2 x 10,000| 20,000 v| 20 kV| |
| 19| 2 x 20,000| 40,000 v| 40 kV| |
MAINTENANCE
Replacing the battery
When replacing battery, turn the power switch to the OFF position. Remove the
battery before longterm storage. See Specifications for replacement type. If
unit fails to operate after replacing the battery, turn power switch to OFF
position, remove battery, press and release the MEASURE /HOLD button, then
reconnect the battery.
Cleaning
To obtain accurate, drift-free readings, the sensor plate and especially the
area around the aperture must be kept absolutely clean at all times. Be
sure to always keep the instrument in its protective case when not actually
taking measurements. Never touch the aperture with anything - not even
cotton swabs. To remove dust or other particulate matter use low-pressure
instrument-grade air. To remove severe contamination spray or flush with the
smallest practical amounts of clean technical-grade isopropyl alcohol. Then
stand the instrument on end and allow it to dry for several hours. DO NOT
clean with any solvent on a regular basis.
CALIBRATION
The ACL 450B Ionized Environment Electrostatic Locator is factory-calibrated prior to shipment. Recalibration should be performed annually, or more frequently if specified by contract or company policy. Your instrument should also be recalibrated any time it has been repaired or tampered with. ACL will recalibrate your instrument at a reasonable cost or provide information and procedures on calibration upon request. We also offer calibration services with traceability to NIST (level 1) and with before and after data (level 2).
WARRANTY
ACL, Inc. warrants to the owners, each instrument and sub-assembly
manufactured by them to be free from defects in material and workmanship for a
period of one year after shipment from factory. This warranty is applicable to
the original purchaser only. Liability under this warranty is limited to
service, adjustment or replacement of defective parts (other than fuses or
batteries) on any instrument or sub-assembly returned to the factory for this
purpose, transportation charges prepaid. This warranty does not apply to
instruments or subassemblies subjected to abuse, abnormal operating
conditions, or unauthorized repair or modification. Since ACL, Inc. has no
control over conditions of use; no warranty is made, or implied as to the
suitability of our product for the customer’s intended use.
RETURN POLICY TO FACTORY
Materials returned to ACL must have a Return Material Authorization number. To
obtain a RMA number, contact our meter department at Customers have 30 days to
determine that the product ordered fills their need and performs as described
in ACL literature. Units returned for approved repair or credit must be in the
original packaging including all parts and paperwork plus be in very good
physical condition. If not, the customer is billed the cost to refurbish the
unit and for missing accessories and merchandise. No products may be returned
for exchange or credit after 12 months of the shipment date. ACL, Inc.
reserves the right to repair or replace units under warranty.
1.888.610.7664www.calcert.com [email protected]