Elgar ContinuousWave Series
800–2500 VA
Pure Sinewave, Low Power AC Source
• Low THD and AC noise
• Advanced Measurement Available
• Wide range PFC Input
• Field Parallel Congurable
• Multiple Units Congurable for
Multi-Phase Operation
The Elgar ContinuousWave (CW) Series of AC
power sources provides clean single phase power
at an impressive price/performance ratio. These
compact switch mode sources come in two series,
manual (CW-M) or programmable (CW-P) with
standard IEEE-488.2 and RS-232 control. Both
series have three power levels, 800 VA, 1250 VA
and 2500 VA. The 800 and 1250 VA models are
2U (3.5”) high and allow the unit under test to be
connected to the front or rear panel. The 2500 VA
model is 3U (5.25”) high with rear panel output
connections. All models can be operated in a
benchtop or rackmount conguration.
The front panels have two bright four digit, seven
segment displays. Power Factor Corrected (PFC)
universal input voltage allows maximum power
to be delivered from an AC outlet without the
user selecting the range. Fully rated current is
delivered for either output voltage range of 135
VAC or 270 VAC over a standard frequency range
of 45 to 500 Hz. Both series can be paralleled to
provide extra power.
A separate output-on switch controls power
to the load. Remote voltage sense is standard.
Transformer coupled output is protected against
overvoltage and overcurrent. The unit is also
protected against over temperature conditions.
A two-speed fan results in quieter operation at
lower power levels. All models are CE marked.
Applications for the CW Series include:
•Testing for real world sine wave power
conditions
•400 Hz testing for avionics equipment
•50/60 Hz margin testing
•Ballast testing
•Components testing
•Power supply testing for AC to DC converters
Manual CW Features And Benets
The manual series front panel knobs (10 turn
potentiometers) allow quick adjustment of
voltage, current and frequency settings. Frequency
and voltage can be programmed remotely using a
0 to 5V analog signal. LED’s indicate: output-on,
voltage or current mode operation, fault and slave
modes. Models can also be paralleled in the eld
or congured for three phase operation using
a factory supplied cable. Current shutdown or
foldback modes can be selected from a rear panel
switch.
Programmable CW Features And Benets
Front panel encoder knobs allow programming
of voltage, current and frequency settings.
Programmed or measured values can be viewed
on the two LED displays through push button
selection. Menu push buttons enable setting
system conguration including parallel or three
phase operation. This menu also allows setting
current shutdown or foldback modes. Remote
IEEE-488.2 and RS-232 control interfaces are
standard. LEDs indicate: high or low range output
voltage, measure or program mode, voltage or
current mode operation and output-on. LED’s
indicate menu/status, remote control, lockout and
fault conditions. Digital Signal Processing (DSP)
based measurements include voltage, current
(amperes, peak amperes, crest factor), power
(watts, VA and power factor) and frequency.
135–310 V
2.6–18.6 A
115 208 230
AMETEK
Programmable Power
9250 Brown Deer Road
San Diego, CA 92121-2267
USA
858.458.0223
sales@ProgrammablePower.com
163
CW Series : Product Specications
Input
Model CW 801M CW 1251M CW 2501M CW 801P CW 1251 P CW 2501 P
Power 800 VA 1250 VA 2500 VA 800 VA 1250 VA 2500 VA
Voltage 90 - 264 VAC 103 - 264 VAC 180 - 264 VAC 90 - 264 VAC 103 - 264 VAC 180 - 264 VAC
Current 13 ARMS max 18.5 ARMS max 19.5 ARMS max 13 ARMS max 18.5 ARMS max 19.5 ARMS max
Frequency 47 to 63 Hz
Phases single-phase
Power Factor >0.99 typical at full load nominal line
Efciency >73% typical at full load
Output
Model CW 801M CW 1251M CW 2501M CW 801P CW 1251 P CW 2501 P
Power 800 VA 1250 VA 2500 VA 800 VA 1250 VA 2500 VA
Voltage
Voltage ranges 0 to 135 Vrms, 0 to 270 Vrms, user selectable
Accuracy (>5VAC) ± 1% of range ±0.1% of range <100 Hz, ± 0.2% of range >100 Hz
Resolution 0.1 Vrms
Total harmonic distortion 0.25% typical <100Hz add 0.5%/100 Hz above 100 Hz
AC noise level (typical) <50 mVRMS <50 mVRMS <100 mVRMS <50 mVRMS <50 mVRMS <100 mVRMS
Amplitude stability¹ ±0.1% of full scale ±0.05% of full scale
Load regulation ±0.1% of full scale voltage for a full resistive load to no load (<10 mVRMS typical, measured at point of sense)
Line regulation ±0.1% of full scale voltage for a ±10% line change from nominal line voltage (<5 mVRMS typical, measured at point of sense)
Remote voltage sense 5 Vrms total lead voltage drop
Current
135VAC Range 6.0 ARMS 9.4 ARMS 18.6 ARMS 6.0 ARMS 9.4 ARMS 18.6 ARMS
270VAC Range 3.0 ARMS 4.7 ARMS 9.3 ARMS 3.0 ARMS 4.7 ARMS 9.3 ARMS
Accuracy ± 0.5% typical ± 0.5% max
Resolution 0.1 ARMS 0.01 ARMS
Frequency range
Range 45 to 500 Hz 45 to 500 Hz, 45 to 1000 Hz (option)
Accuracy ±0.5% typical ±0.02% max
Resolution 0.1 Hz 0.1 Hz, 0.01 Hz for remote programming
Phase All models single phase output. Multi-phase system conguration with Digital Expansion Cable
Power factor of load 0 lag to 0 lead
Physical
Model CW 801M CW 1251M CW 2501M CW 801P CW 1251 P CW 2501 P
Height 3.5 in. 3.5 in. 5.25 in. 3.5 in. 3.5 in. 5.25 in.
Width 19 in. 19 in. 19 in. 19 in. 19 in. 19 in.
Depth 20.07 in. 20.07 in. 20.07 in. 20.07 in. 20.07 in. 20.07 in.
Weight 48 lbs (22 kg) 53 lbs (24 kg) 86 lbs (39 kg) 48 lbs (22 kg) 53 lbs (24 kg) 86 lbs (39 kg)
Shipping Weight 56 lbs (25 kg) 61 lbs (28 kg) 94 lbs (43 kg) 56 lbs (25 kg) 61 lbs (28 kg) 94 lbs (43 kg)
Environmental
Operating Temperature 0 to 40°C
Storage Temperature -40 to +70°C
Humidity Range 0 to 85% at 25°C derate to 50% at 40°C (non condensing)
Altitude Operating full power available up to 6,000 feet, non operating to 40,000 feet
Cooling Dual fan speed with side air intake, exhaust to rear
General
Regulatory compliance CE Mark
164
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CW Series : Product Specications
800–2500 VA
Measurements
Model CW 801M CW 1251M CW 2501M CW 801P CW 1251 P CW 2501 P
Power 800 VA 1250 VA 2500 VA 800 VA 1250 VA 2500 VA
Voltage
Range 0 to 270 Vrms 0 to 270 Vrms, 0 to 310VRMS (option)
Accuracy² (VAC >5V) ± 1% of full range ±0.1% of range <100 Hz, ± 0.2% of range>100 Hz,
Resolution 0.1 Vrms 0.1 Vrms
Current³
Range 0 - 6.0 ARMS 0 - 9.4 ARMS 0 - 18.6 ARMS 0 - 6.0 ARMS 0 - 9.4 ARMS 0 - 18.6 ARMS
Accuracy ±2% of range for linear loads with current >0.2A,
> 0.4A for 2500 VA
Resolution 0.1 ARMS 0.01 ARMS
Peak Current³
Range - - - 0 to 25 A 0 to 35 A 0 to 70 A
Accuracy - - - ±1% of range
Resolution - - - 0.1 A
Frequency
Range 45 to 500 Hz 45 to 500 Hz, 45 to 1000 Hz (option)
Accuracy ±0.5% typical ±0.02% max
Resolution of display 0.1 Hz 0.1 Hz
± 0.3% of range>500 Hz (option)
±0.5% of range for linear loads
Measurements
Model CW 801 P CW 1251 P CW 2501 P
Power 800 VA 1250 VA 2500 VA
Power³
Range 0 - 800 W 0 - 1250 W 0 - 2500 W
Accuracy ±2% of range for linear loads
Resolution 1 W
Apparent Power³
Range 0 to 800 VA 0 to 1250 VA 0 to 2500 VA
Accuracy ±2% of range for linear loads
Resolution 1 VA
Power Factor³
Range 0 to 1
Accuracy ±4% of range for linear loads
Resolution 0.01
Crest Factor
Range 0 to 3.5
Accuracy ±5% of range
Resolution 0.01
Phase
Range -359 to +359 degrees. Positive indicates time lag from reference
Accuracy Within 100 microseconds of equivalent angle
Resolution 1 degree
1
Over 8 hours at constant line, load and temperature after 15-minute warm-up typical
2
Typical values measured at point of sense
3
In a parallel system (for programmable units only), the current/power displayed on the master unit is the sum of all units in the system
858.458.0223
sales@ProgrammablePower.com
165
CW Series : Product Diagram
20.070
1.75
.125
2.300
2.30
1.44
16.900
3.55
ELGAR
INPUT
LINEGNDNEUT
SENSE
NEUTLINE
LINESENSE NEUT
GND
OUTPUT
M/S
IN
M/S
RS232
OUT
GPIB
ANALOG SLAVE
POWER
AC Power Source
ContinuousWave
CW2501
VOLTAGE POWER
VOLTAGE MODE
VOLTS
MEASURE PROGRAM
LOW
V RANGE
HIGH
FA UL T
LOCKOUTREMOTE
SAVE
ESCAPE
ENTER
PF
OVP
VA
WA TT S
MENU STATUS
AMPS
PROGRAMMEASURE
AMPSCFPk
Hz
CURRENT MODE
FREQUENCYCURRENT
I LIMIT
OUTPUT
RESET
OFF
ON
18.260
2X
19.000
1.484
5.218
4X .250
2.250
166
Dimensions are in inches
CW 2501
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CW Series
CW 1251
Series
Maximum Power Single Phase
M
M = Manual
XXX
Options
P = Programmable
801
1251
2501
Model Number Description
Options and Accessories
H: Expanded frequency range 45 to 1000 Hz (CWP only)
L: Locking knobs (front panel potentiometers) (CW-M only)
S: Sync In/Out (clock/lock) (standard on CW-P)
V: 0-155V/0-310V Output (CW-P only)
-108: 200V/400V Output for (CW 801P Only)
Certicate of Calibration (CW-P only)
Rack Slide Kit: Elgar Part No. K161570-01
Multi-Unit Cable: Elgar Part No. 890-497-40
Digital Expansion Cable: Elgar Part No. 890-499-00 (CW-P only) Required to parallel or congure a 3ø system
800–2500 VA
© 2009 AMETEK Programmable Power All rights reserved. AMETEK Programmable Power is the trademark of AMETEK Inc., registered in the U.S. and other countries.
Elgar, Sorensen, California Instruments, and Power Ten are trademarks of AMETEK Inc., registered in the U.S.
858.458.0223
sales@ProgrammablePower.com
167
CW Series
Notes
168
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