Hameg HM7042-3 Manual, Specifications

47
The HM7042-3 Triple Power Supply is a compact instrument developed for
current and voltage supply requirements in the laboratory field. The unit is
manually controlled featuring linear voltage regulation with low ripple and
noise. This newly designed instrument combines DC/DC converters as pre
regulator followed by a linear voltage regulator. Three independent floating
voltages  deliver a total output power of maximum 156W. Either output can be
combined in a series or a parallel connected array to either increase the
current or voltage capability.
The output current and voltage is continuously variable in one range from 0V
to 32V and 50mA to 2A. In addition to the two voltages, the HM7042-3 has
an additional output that is rated at 5A and variable between 2.7V and 5.5V.
The change over from voltage control to current control is performed
automatically, based on the load, and is indicated via LEDs. All outputs can
be switched On/Off simultaneously with the push of the output button. When
a current limit value is reached, power is removed from the output to protect
sensitive circuits.
The HM7042-3 posses every safety feature necessary to ensure problem
free operation. The built in fan is temperature controlled and starts operating
after 40°C is reached inside the instrument. Due to its high quality standard,
the  HM7042-3, which is stackable with other HAMEG instruments, will
always be a cost effective alternative which rivals other, more expensive
units.
Accessories supplied: Line Cord, Operators Manual
POWER SUPPLIES
Specifications
(Reference Temperature: 23°C ± 1°C)
DC Voltage Sources 0 to 32V
Range (each): 0 to 32V, continuously variable
with coarse and fine voltage output controls
Resolution: 100mV
Output current: 2x 0 to 2A
Current limit range: 2x <0.05 to 2A
continuously adjustable
Resolution: 1mA (0-1999mA), 10mA (≥ 2A)
DC Voltage Source 2.7V – 5.5V
Range: 2.7V to 5.5V (±0.1V) continuously variable
Resolution: 10mV
Output current: 0 to 5A
Current limit range: 0.05 to 5A
Resolution: 10mA
General Information
Internal resistance: (static) typ. 7mΩ
 dynamic typ. 200mΩ
Stability: ≤ 2.5mV
at line voltage variations of up to 10%
Regulating time: ≤ 80ms
Load regulation: ≤ 0.05%
Temperature coefficient: ≤ 0.1%/°C
Ripple and noise: ≤ 1mV
rms
 (f
upper
100 kHz)
All outputs floating. Series connection of all outputs
possible (max. potential ±100V with respect to chassis
and/or protective earth). Outputs are switchable from
the front panel.
Built in overheating protection and fan.
Operating modes: constant voltage (CV)
constant current (CC)
over current protection
Display
Six digit 7 segment LED displays with separate
indication or voltage and current; Current limit indicator
Miscellaneous
Line voltage: 115/230V AC ±10%, 50/60Hz
Power consumption:approx. 250 Watt at full load
Min./Max. ambient temperature: 0°C...+40°C
Protective system: Safety class I (IEC 1010-1)
Weight: approx. 6kg, color: techno-brown
Cabinet: W 285, H 75, D 365 mm
Triple Power Supply HM7042-3
 2x0-32V, 2A; 1x2.7-5.5V, 5A
 Floating Outputs
 Digital Displays for Voltage and Current
 Adjustable Current Limiter
 Parallel and Serial Operation
  Output Power up to 156W
 Thermal Overload Protection
 Temp. Compensated Fan
230403

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