Instructions

Chapter II
26 Stabilized power supplies
4. TECHNICAL SPECIFICATIONS
Only the values assigned tolerances or the declared limits constitute guaranteed values.
Values without tolerances are given as indications and the measurement errors must be
considered in the reference temperature conditions, i. e. 23° C ± 5° C.
4.1. Voltage
AX 501 AX 502 AX 503 - AX 503F
Range available 0 - 30V 2 x (0 - 30 V)
or
1 x (0 - 60 V)
+ TRACKING
2 x (0 - 30 V)
or
1 x (0 - 60 V)
+ TRACKING
+ output
2.7 V to 5.5 V
«AX 503F» : 3.3 V
Adjustment coarse and fine
by potentiometers
by potentiometer
except “AX 503F”
Display green LEDs none
Resolution 0.1 V -
Accuracy
± 0.5 % of reading ± 1 digit
-
Stability if variation:
mains ± 10 % ± (0.03 % R + 2 mV) ± 4 mV
of the 0 to 2.5 A load
± (0.02 % R + 5 mV)
-
of the 0 to 5 A load -
± (0.2 % R +10
mV)
Residual ripple in load <
1 mVrms
± 1 mVrms
Common mode voltage
60 V peak
Protection against
short-circuit
current electronic limitation
Coupling of outputs - series or parallel -
"TRACKING"
(master/slave)
- yes -
 To avoid significant drops in voltage during regulation verification measurements, the
contact resistances of the connections must be very low ( ≤ 1 m Ω ).
4.2. Current
AX 501 AX 502 AX 503 - AX 503F
Range available 0 - 2.5 A 2 x (0 -2.5 A)
or
1 x (0 - 5 A)
2 x (0 -2.5 A) or
1 x (0 - 5 A)
+ output 5 A
Adjustment by potentiometer none
Display red LEDs -
Resolution 10 mA -
Accuracy
± 0.5 % of reading ± 1 digit
-
Output current limitation adjustable from 0 to 2.5 A limited to
5 A ± 5 %
Residual current < 22.5 mA
Indication of limitation LED
Short-circuit protection current limitation
Protection against
overheating
yes