13
set RV1 to required secifications.
Table 2.
5.
5.
5.
5.
9
9
9
9
Failure and Cause
5.9.1
5.9.1
5.9.1
5.9.1
Without Voltage Output
(1) The
±
15V Aux. Power supply does not work.
(2) The Local/Remote (R/L) switch position is not correct.
(3) The output switch is not turned on.
5.
5.
5.
5.
9
9
9
9
.2
.2
.2
.2
The output voltage can not be set up to the required value.
(1) The CC point is turned to low, it should be turned to higher.
(2) The output terminal has been shorted.
(3) On the PC boards Q
1
or Q
2
may be damaged.
5.
5.
5.
5.
9
9
9
9
...
.
3
3
3
3
Unstable Operation
(1)
±
15V voltage of the aux. Power supply does not stabilize.
(2) V
3
or V
4
on the PC board does not operate normally
5.
5.
5.
5.
10
10
10
10
Normal Operating Voltage of the Instrument
The “+”output terminal is a reference point when the instrument is measured.
5.
5.
5.
5.
10
10
10
10
.1
.1
.1
.1
The voltage of the aux. power supply is
±
15V.
5.
5.
5.
5.
10
10
10
10
.2
.2
.2
.2
The voltage of each measured point on the PC board.
V
2
= 6. 1v
REFV = 0~-10V
REFC = 0~-10V
CCAMP= 0~ - 10V
When operating in CV mode:
C.V = 0~4v C. c = +14V
When operating in CC mode:
C.V = +l4v C. c = 0~4v
6
6
6
6
...
.
COMPLETENESS
COMPLETENESS
COMPLETENESS
COMPLETENESS
OF
OF
OF
OF
THE
THE
THE
THE
INSTRUMENT
INSTRUMENT
INSTRUMENT
INSTRUMENT
The instrument suite includes:
(1) DHl719A master unit
l set
(2) Cartridge fuse BGxP
Φ
5x20
Input fuse 2A
2
(3) Instrument Manual
2
Model
Adjustment
DH1719A-2
24V-5A
DH1719A-3
32V-4A
DH1719A-4
55V-2A
DH1719A-5
100V-1A
Calibrated. Standard
Ammeter I
1
5A
4A
2A
1A
Max. Variable CV Setting Range E
0 (max.)
25.2V
33.3V
57V
105V
Max. Variable CV Setting Range I
0 (max.)
5.2A
3.15A
2.1A
1.05A
setting of Relay Switch
Circuit
14V
20V
33V
60V
