Bondline SL3 User manual

Instruction Manual
SL3 Electrostatic Field Meter
Description
SL3 fieldmeter is an accurate, compact electrostatic fieldmeter used for location
and measuring static charge potentials
Features:
●Pocket Size convenience
●Sample and hold measurements modes
●Distance ranging lights
●Conductive case and ground snaps
●Digital Display
●9 Volt Battery powered
●Analog Output
●Designed for use in ionized areas
The fieldmeter features both SAMPLE and HOLD measurements modes that allow
measurements to be made in places that would be difficult to reach or see with other
instruments. A set of ranging lights ensure accurate and repeatable measurement. No
range switching is required as the digital display covers the range of 0 to + 19.99
kilovolts. An analog output jack provides a 1 volt output corresponding to a 10
kilovolt reading on the meter display. The circuitry has been designed to make
accurate measurements in areas using air ionization.
Operation:
1. Controls: The model S2001 fieldmeter has a slide switch for ON/OFF and a
push button switch for modes. The ZERO knob can be turned to the left or
right to change the zero settings of the display.
2. Turning the meter on and off: Push the slide switch actuator into its upper
(ON) position. The display will come on. To turn the meter OFF, slide the
switch down to its lower (OFF) position. The display should now turn off.
3. Battery check: After turning on power to the meter, check the display and
make sure that the low battery indicator BAT is not showing on the display. If
the BAT indicator is lit, replace the battery as described below before using
the meter.
4. Zero the meter: Turn on the meter with the on/off switch. Put the meter in the
SAMPLE mode (up position). Place the meter 1 inch from a GROUNDED
metal surface. If necessary, adjust the ZERO control until the display reads
zero.

IMPORTANT: The SL3 is built in a conductive case that provides the ground
reference for the measuring circuit. For accurate measurements and zeroing,
ensure that the person holding the meter is grounded or discharged by touching
ground, or that the meter is grounded using the ground snap on the rear of the
case.
5. Take a reading: Place the meter 1 inch from the object to be measured. The
distance is measured from the stainless steel front panel to the surface of the
object. The meter now displays a reading of the electrostatic field in kilovolts
per inch. Note: in the SAMPLE position the RANGE LIGHTS are on. The
RANGING LIGHTS are provided to help you place the meter at the correct
distance from an object. The lights are factory adjusted to produce a
concentric ring bulls-eye pattern on a flat, opaque surface 1 inch from the
front edge of the meter. This can most easily be seen by aiming the meter at a
sheet of white paper.
6. Hold a reading: With the meter in position 1 inch from the object being
measured, press the push-button so that it latches in the lower or HOLD
position. This freezes the reading on the display and allows the meter to be
moved to a position where it can be more easily read or saved for later
reference. When the meter is in the HOLD position, the word HOLD will
appear in the display. NOTE: In the HOLD position, the RANGING LIGHTS
are off. When the push-button is returned to the SAMPLE position, the
RANGING LIGHTS goes on and the word HOLD disappears from the
display.
7. Battery Replacement: To change the battery, slide open the battery
compartment door on the back of the meter and remove the battery from the
battery clip. Replace the battery with a fresh one and replace the battery
compartment door. If the meter is to be stored for an extended period of time,
disconnect and remove the battery.
8. Measurements accuracy: The accuracy of measurement is dependent on a
stable ground reference and the 1 inch measuring distance as previously noted.
It is also dependent on the aspect ratio, relating the size of the object to be
measured to the measurement distance. This ratio should be at least three for
best accuracy, ie the object should be at least a 3 inch sq when measuring at a
1 inch distance. **Accurate measurements may be made at other
measurements distances by scaling the meter range and observing the proper
aspect ratio. For example at a measurement distance of thee inches, multiply
the meter reading by 3 to give a range of 0 to 59.97 kilovolts. For accuracy,
the object being measured at this distance should be at least a 9 inch sq.

Maintenance:
The only maintenance necessary for the SL3 fieldmeter is occasional changing of the
9V battery. Slide off the battery compartment door on the rear of the unit. Carefully
remove the battery on the compartment, noting the routing of the battery clip wires,
and detach the battery clip. Replace with a 9V alkaline battery of the same type.
Carefully reinsert the battery in the compartment, routing the wires so that they don’t
interfere with the battery compartment door. Slide the battery compartment door back
into position.
Calibration:
The SL3 is factory calibrated to an accuracy of better than 5%. No attempts should be
made to recalibrate the unit without factory authorisation. The accuracy of the
measurement is dependent on stable ground reference and measurement at a precise
1” distance. The SL3 has a basic accuracy of + 5% measured with 1000 volts on the
plate.
Service:
The SL3 has been sealed. BREAKING THE SEALVOIDS THE WARRANTY. If for
any reason you believe the meter isn’t working correctly, please contact the supplier.
Caution: There are no user-serviceable parts. Any unauthorised service voids the
warranty.
Warranty:
The SL3 has a warranty of 2 years from the date of receipt or installation to be free
from defects in material or workmanship. The liability of the supplier under warranty
is limited to replacing or repairing or repairing any unit which is returned by the
purchaser and which has not been subjected to misuse, neglect, repair and alternation
or accident. In no event will the supplier be liable for the collateral or consequential
damages.
CAUTION: THE SL3 IS A PRECISION ELECTRONIC INSTRUMENT. IT MUST
NOT BE SUBJECTED TO EXTREMES OF SHOCK AND VIBRATION.
DAMAGE TO THE FIELD SENSOR MAY RESULT FROM DROPPING THE
UNIT FROM EXCESSIVE HEIGHT ONTO A HARD SURFACE. SUCH
DAMAGE IS NOT COVERED BY THE WARRANTY.