- 13 -
- 13 -
4000 4 200_Rev1 - 12/09
4000 4 200_Rev1 - 12/09
ENGLISH
OTHER SPECIFICATIONS
Mains
: 230V ± 10%, 50 / 60Hz
Mains input
: «EUROPE» CEE 22 receptacle with bipolar cord + Earth
Powering
: Bipolar switch
Outputs
: Safety terminals, VDE 0110 standard
Consumption
: 430VA
Electric strength
: 2300VAC between input and output
2300VAC between input and frame
100VDC between output and frame
Dimensions
: L=285mm H=151mm D=225mm
Casing
: Polycarbonate front face silk-screen printed
Epoxy paint on case
Weight
: 6.8kg
Condition of use
: +5°C to +40°C
Condition of storage
: -10°C to +50°C
Condition of humidity : see diagramm.
PROTECTIONS
Safety class
: I
Against short-circuit, by current limiting.
Against excessive temperature rises :
- by temperature controlled ventilation
- by thermal circuit-breaker, built in the transformer
- by relay switching the secondary windings of the transformer
Against any overcurrent in the transformer :
- by time-delay fuse 3.15A 5x20 on the primary winding (accessible on the back side).
- by fast fuse F5A 5x20 on the secondary winding (inside the instrument).
STANDARDS
EMC
:
EN 55011
group 1 - class B
EN 50082-1
performance criterion A
SAFETY : EN 61010-1, overvoltage category II and pollution degree 2.
EN 61558-2-4
, class II for the transformer.
3. WORKING PRINCIPLE
3.1 REMINDER ABOUT THE RECTANGULAR
CHARACTERISTIC
A power supply able to work at constant voltage or
current is called with rectangular characteristic
(Fig. 1).
The change from «constant voltage» working to
«constant current» working is automatic according
RL=Vs/Is
RL>Vs/Is
V
Vs
V1
RL>Vs/Is
I1
Is
I
Fig.1
to the adjustments of Vs and Is and to the load applied at the output.
If the RL load resistance is higher than the ratio Vs/Is, the power supply works at
constant voltage for the value of the selected output voltage and with a
current limiting to Is.
If RL varies from the infinite to Vs/Is, I can vary from 0 to Is (I1 example) and the output
voltage is constant.
For the power-supply being able to work at constant voltage, the output current must
be lower than the selected limit current.
In the contrary case, the power supply changes over to the «constant current»
working.
If the RL load resistance is lower than the ratio Vs/Is, the power supply works at
constant current, for a current value selected and with a voltage limiting to Vs.
If RL varies from 0 to Vs/Is, V can vary from 0 to Vs and Is = constant (V1 example).
For the power supply being able to work at constant current, the output voltage has
to be set at the maximum of the specified values ; and the limit current has to be set
by an appropriate adjustment on acting on the Icc function.
Caution
!
when the output limit voltage and current are set, so that the load resistance
is equal to the ratio Vs/Is, a working instability can occur.
3.2 CONSPECTUS OF THE DIFFERENT MODES
3.2.1 Separated Mode
The 2 power-supplies are independant and deliver each a voltage adjustable from
0 to 30V and a current adjustable from 0 to 3A.
3.2.2 Tracking Mode
This mode allows to deliver 2 symmetrical voltages in relation to the middle point formed
by the negative terminal of the Master power-supply "A" and the positive terminal of
OTHER SPECIFICATIONS
Mains
: 230V ± 10%, 50 / 60Hz
Mains input
: «EUROPE» CEE 22 receptacle with bipolar cord + Earth
Powering
: Bipolar switch
Outputs
: Safety terminals, VDE 0110 standard
Consumption
: 430VA
Electric strength
: 2300VAC between input and output
2300VAC between input and frame
100VDC between output and frame
Dimensions
: L=285mm H=151mm D=225mm
Casing
: Polycarbonate front face silk-screen printed
Epoxy paint on case
Weight
: 6.8kg
Condition of use
: +5°C to +40°C
Condition of storage
: -10°C to +50°C
Condition of humidity : see diagramm.
PROTECTIONS
Safety class
: I
Against short-circuit, by current limiting.
Against excessive temperature rises :
- by temperature controlled ventilation
- by thermal circuit-breaker, built in the transformer
- by relay switching the secondary windings of the transformer
Against any overcurrent in the transformer :
- by time-delay fuse 3.15A 5x20 on the primary winding (accessible on the back side).
- by fast fuse F5A 5x20 on the secondary winding (inside the instrument).
STANDARDS
EMC
:
EN 55011
group 1 - class B
EN 50082-1
performance criterion A
SAFETY
: EN 61010-1, overvoltage category II and pollution degree 2.
EN 61558-2-4
, class II for the transformer.
3. WORKING PRINCIPLE
3.1 REMINDER ABOUT THE RECTANGULAR
CHARACTERISTIC
A power supply able to work at constant voltage or
current is called with rectangular characteristic
(Fig. 1).
The change from «constant voltage» working to
«constant current» working is automatic according
RL=Vs/Is
RL>Vs/Is
V
Vs
V1
RL>Vs/Is
I1
Is
I
Fig.1
to the adjustments of Vs and Is and to the load applied at the output.
If the RL load resistance is higher than the ratio Vs/Is, the power supply works at
constant voltage for the value of the selected output voltage and with a
current limiting to Is.
If RL varies from the infinite to Vs/Is, I can vary from 0 to Is (I1 example) and the output
voltage is constant.
For the power-supply being able to work at constant voltage, the output current must
be lower than the selected limit current.
In the contrary case, the power supply changes over to the «constant current»
working.
If the RL load resistance is lower than the ratio Vs/Is, the power supply works at
constant current, for a current value selected and with a voltage limiting to Vs.
If RL varies from 0 to Vs/Is, V can vary from 0 to Vs and Is = constant (V1 example).
For the power supply being able to work at constant current, the output voltage has
to be set at the maximum of the specified values ; and the limit current has to be set
by an appropriate adjustment on acting on the Icc function.
Caution
!
when the output limit voltage and current are set, so that the load resistance
is equal to the ratio Vs/Is, a working instability can occur.
3.2 CONSPECTUS OF THE DIFFERENT MODES
3.2.1 Separated Mode
The 2 power-supplies are independant and deliver each a voltage adjustable from
0 to 30V and a current adjustable from 0 to 3A.
3.2.2 Tracking Mode
This mode allows to deliver 2 symmetrical voltages in relation to the middle point formed
by the negative terminal of the Master power-supply "A" and the positive
8 0
5 0
3 1
4 0
° C
%
m a x i m u m r e l a t i v e
m o i s t u r e
8 0
5 0
3 1
4 0
° C
%
m a x i m u m r e l a t i v e
m o i s t u r e
Voltage display
Current display
Voltage display
Current display
MASTER
Power
SLAVE
Power
SEPARATED
Mode
Current regulation
Current regulation
STANDBY
Mode
Voltage regulation
Voltage regulation
MASTER
Output
SLAVE
Output
Voltage display
Current display
Voltage display
Current display
MASTER
Power
SLAVE
Power
SEPARATED
Mode
Current regulation
Current regulation
STANDBY
Mode
Voltage regulation
Voltage regulation
MASTER
Output
SLAVE
Output
