Atec 8850-2 User Manual

APPLICATION

9/16/2011

The

Model 8850-2

was specifically designed for use with the Solar Audio
Isolation Transformers in making audio frequency
susceptibility test as required by Mil-Std-461E/F CS101. This
high power unit is especially suited for rapidly making tests in
the shielded room.

When used with the
Transformer, the combination enable the injection of sinewave
audio voltages into active power lines supplying power to
Equipment Under Test (EUT)

200 watt High Power Sweep Generator

Type 6220-1A

or

6220-2

Audio Isolation

.

DESCRIPTION

The Model 8850-2 Power Sweep Generator provides audio
power in a manually tuned or sweeping mode for four
frequency bands covering 30 Hz to 150 KHz. The sweep rate
is compliant with the requirements of Mil-Std-461F for an
analog scan, approximately 0.0333 x frequency of oscillation
per second.

The frequency in kHz and output lever in volts r.m.s are
continuously displayed on two digital front panel meters.

SOLAR MODEL 8850-2

200 Watt

HIGH POWER SWEEP

GENERATOR

for

conducted audio frequency

susceptibility testing

Physical Dimensions

Net Weight ........................ 39 Lbs (17.7. Kg)

Shipping Weight .................... 45 Lbs (20.4. Kg)

Height.........................9.12 Inches (22.2 cm)

Width ........................ 17.12 Inches (43.5 cm)

Depth ........................ 13.50 Inches (34.3 cm)

FEATURES

#

Manual or automatic sweep from 30 Hz to 150 kHz.

#

Digital display of frequency and output voltage level or injected
voltage level.

#

Remote sensing of voltage being injected into the Equipment

Under Test.

#

Automatic leveling of output voltage as frequency is scanned or
swept to 50 kHz

#

Low Output Impedance for greater transfer of audio power

When used in conjunction with the Type 7021-1 Phase Shift
Network and the Type 6220-1A Audio Isolation Transformer,
provision is made for sensing the audio voltage being injected
into the EUT and displaying it on the digital panel meter. In
this arrangement, the unit maintains a constant injection level
(up to a maximum of 7.5 volts r.m.s ) as the frequency is
scanned to 50 kHz.

SPECIFICATIONS

Frequency Range:
Frequency Stability:
Output Power:
Output Impedance:

Output Voltage:.... >

Output Current:
Output Level:

Continuously displayed on digital panel meter.

Sweep Duration:
Remote Sense:

level set by operator up to7.5 V.r.m.s. as frequency is scanned
to 50 kHz

Output Level Drift:
Overload Protection:

temperature, over-voltage, or over-current conditions in output
circuit.

Power Requirements

Power Source................... 115/230 V 60/50 Hz

Power Line Fuses 115 V .............. 12 amperes (2)

Power Line Fuses 230 V ............... 5 amperes (2)

.........30 Hz to 150 Khz in four bands

.................... <2250 ppm/C

......... 200 watt into 2.0 S non-inductive

........................... 2.0 S

20 volts RMS into 2.0 S non-inductive

............. 15 amps maximum at 1 kHz

......... Manually controlled by panel knob.

. . 0.0333 x frequency of oscillation per sec.

Automatically maintains output voltage at the

.....................Less then 0.5%

..... Automatic shut down for excess

#

Protective circuits prevent damage to output stage caused by
power frequency feedback in typical a.c. tests setups.

#

Up to 200 watts output into 2.0 ohm resistive load

AVAILABLE ACCESSORIES

SOLAR Type 6220-1A Audio Isolation Transformer

Use for injecting output of 8850-21 in series with the power line to test
sample as required by test method CS101, Mil-Std-461E/F

SOLAR Type 7032-1 Isolation Transformer

Use for removing power ground from the case of s cope or voltmeter.

SOLAR Type 8810-1 Impedance Matching
Transformer

Plugs into output terminals to step up the output to 50 ohms
impedance. Use when 50 ohm signal source in needed.

SOLAR Type 8811-1 Wide Range Transformer

Plugs into output terminals to provide up to 115 v olts rms at 200 watts .
Use as a power source for frequencies from 30 Hz to 2 kHz.

SOLAR Type 9138-1 Step-up Transformer

Plugs into output terminals to provide up to 2 KV into 20 kilo-ohms
load, 3 kHz to 30 kHz.

Solar Electronics Company

a division of A..T. Parker Inc.

10866 Chandler Boulevard

Phone: [phone], Fax: [phone], Email: [e-mail]

North Hollywood, California 91601