50663 EMIT, 50663 Datasheet - Page 3

• Manufacturer Part Number: 50663
• Description: Zero Volt Ionizer
• Manufacturer: EMIT

Specifications of 50663

• Ionizer Type: Benchtop
• Flow Rate Max: 100CFM
• Depth: 3.1"
• Width: 6"
• Height: 9.5"
• Supply Voltage Vac: 120V
• Features: Stainless Steel Enclosure
• Lead Free Status / RoHS Status: na

TB-6533 Page 3 of 4
during the life of the unit with normal handling. If
necessary, item
available for order.
Calibration and Adjustments
BALANCE ADJUSTMENT
The Bench Top Zero Volt Ionizer is an auto-balancing
unit. However, tuning or manual adjustment can be
accomplished by inserting a small screwdriver or trimmer
adjustment tool into the balance adjustment hole located at
the rear of the unit (see Figure 3). To increase the output
in a positive direction, turn the potentiometer clockwise.
To increase the output in a negative direction, turn the
potentiometer counter-clockwise.
MAINTENANCE / ALARMS
WARNING - RISK OF ELECTRIC SHOCK
THESE SERVICING INSTRUCTIONS ARE FOR USE BY
QUALIFIED PERSONNEL ONLY. DO NOT PERFORM
ANY SERVICING OF INTERNAL PARTS UNLESS YOU
ARE QUALIFIED TO DO SO.
NOTE: The AC power cord MUST always be disconnected
before the unit is disassembled.
The input voltage may be verified or reset by removing the
3 screws located on the back of the unit then removing the
back case.
The input voltage can be selected using the two internal
jumpers shown in Figures 4 and 5.
If the supply voltage drops from 110 Volts to below 85
Figure 4. 110V jumper setting
Figure 5. 220V jumper setting
Volts or from 200 Volts to below 170 Volts, the unit will shut
down, the audible alarm will beep and the LED will blink
red. The unit will automatically reset when the minimum
voltage is restored.
Feedback technology can save money and extend the
Voltage Selection Header
Power Jack
Voltage Selection Header
Power Jack
50659
EMIT - 3651 Walnut Avenue, Chino, CA 91710 • [phone] • Fax [phone] • Website:
Replacement Emitter Points are
Jumpers
Jumper
maintenance interval of the ionizer. What the sensor detects
is that the offset voltage (balance) has shifted and the
circuits will attempt to compensate. In the case of corona
ionizers, one of the reasons for a shift in offset voltage is
frequently the particle buildup, commonly called a ”fuzz
ball”, observed on ion emitter points.
Offset voltage (balance) and both polarity’s discharge time
should be checked on every ionizer periodically using an
Ionization Test Kit or a Charged Plate Analyzer. Emitter
points will erode over time. Clean the emitter points (with
electrical power off), calibrate offset voltage (balance)
to zero and then to re-test for offset voltage (balance)
and discharge times recording the measurements. The
EMIT Zero Volt Ionizer offset voltage (balance) should be
adjusted to approaching zero at this time.
Specifications
The comparative efficiency of bench top ionizers is
determined by a standard test published by the ESD
Association: Standard S3.1. Typical positive and negative
decay times (1000 V - 100 V) measured using this standard
are shown below. The performance of the ionizer was
measured with the unit positioned as shown, with the fan
speed on high and without a filter.
Air Flow
Three speed fan (125 fpm - 250 fpm, 50 cfm -100 cfm)
Balance
±3 Volts Typical
±5 Volts Maximum
(Temperature Range: 65°F - 80°F, RH: 15% - 65%)
Chassis
Powder coated aluminum housing
Dimensions (with stand)
9.5” x 6.0” x 3.1”
Emitter Points
.050” diameter
Made of pure tungsten for improved mechanical strength
and ionization stability
Fuse
250 mA slow blow
High Voltage Power Supply
5.5 kV DC nominal
Input Power
AC line power
Internally selectable for 110/115 VAC - 50/60Hz or
220/230 VAC - 50/60Hz
Ion Emission
Steady-state DC with sense feedback
Mounting
Bench Top tilt adjust frame
Ozone
< 0.05 ppm
Weight
4.5 lbs
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