Associated Research HypotULTRA 7800, Operation And Service Manual

Page: 21 / 206

16
Arc Detection 1
– 9 ranges (9 = highest sensitivity)
Fixed Range
HI and LO-Limit (Total),
current, mA
0.000-3.500 0.001
± (2% of s 2 counts)
3.51-30.00 0.01
DC WITHSTAND VOLTAGE (7850 and 7800 only)
Output Voltage, DC 0 -6000 1 ± (2% of s 5V)
DC Output Ripple
<4 %
（
6KV/10mA at Resistive Load
）
Short Circuit Protection minimum current 11mA AVG at short circuit, Response time < 2ms
SETTINGS
Auto Range
HI and LO-Limit, current, uA
0.0000-0.9999 0.0001
± (2% of s 10 counts)
Low Range is ON.
1.000
– 9.999
0.001
10.00
– 99.99
0.01
100.0
– 999.9, Low
Range = ON
0.0
– 999.9 Low Range
= OFF
0.1
± (2% of s 2 counts)
1000
– 10000
1
Ramp-Up Timer, second
0.4
– 999.9, Low Range
= OFF
0.5
– 999.9, Low Range
= ON
0.1 ± (0.1% + 0.05 sec) Ramp-Down Timer, second 0.0, 1.0-999.9
Dwell Timer, second
0, 0.4
– 999.9,
(0=continuous)
and 0, 1.0
– 999.9 when
low current range is
selected
Ramp-HI, current , uA
0.0000-0.9999 0.0001
± (2% of s 10 counts)
Low Range is ON.
1.000
– 9.999
0.001
10.00
– 99.99
0.01
100.0
– 999.9
0.1
± (2% of s 2 counts)
1000
– 10000
1
Charge-LO, current
0.0
– 350.0 µA DC or Auto Set, When current range is 3 ranges.
0.00
– 35.00 uA DC or Auto Set, When current range is 6 ranges.
Discharge Time
< 50 ms for no load, < 100 ms for capacitor load (all capacitance
values in MAX load spec below)
Maximum Capacitive Load
1µF < 1KV 0.08µF < 4KV