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| 750ADM/750ADM-H Specifications |
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Main Output
The main output on the unit has two taps, allowing the
selection of output voltages up to 16V and output
currents up to 750A. The unit operates at slightly reduced
ratings when operating from a 115V supply.
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750Amp Output |
750ADM |
750ADM-H |
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115V |
230V |
115V |
230V |
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Open Circuit Voltage |
2.5V |
3.5V |
3.5V |
5.0V |
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Voltage at 500A |
1.9V |
2.8V |
2.8V |
4V |
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Continuous Current |
125A |
125A |
125A |
125A |
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5 minutes 'ON' |
250A |
250A |
250A |
250A |
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1 minute 'ON' |
500A |
500A |
440A |
500A |
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Maximum Current |
750A |
750A |
500A |
750A |
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Maximum Current 'ON' time |
10s |
30s |
10s |
20s |
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40Amp Output |
750ADM |
750ADM-H |
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115V |
230V |
115V |
230V |
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Open Circuit Voltage |
10V |
16V |
10V |
16V |
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Full Load Voltage |
7.5V |
10V |
7.5V |
10V |
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Continuous Current |
10A |
10A |
10A |
10A |
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1 minute 'ON' |
40A |
40A |
40A |
40A |
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Maximum current 'ON' time |
10s |
30s |
10s |
20s |
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Metering
The output is metered by a digital true RMS system with a
memory ammeter - whenever the output is switched off, the
current reading is held on the display.
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Range |
Resolution |
Trip Current |
Accuracy |
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20.00A |
0.01A |
21A |
±0.5% of reading +5digits |
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50.00A |
0.01A |
53A |
±0.5% of reading +5digits |
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200.0A |
0.1A |
210A |
±0.5% of reading +5digits |
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750A |
1A |
788A |
±0.5% of reading +2digits |
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A current trip is automatically set to 105% of full scale of the
selected metering range to protect the device under test.
Timing System |
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Range |
0.999.999s |
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Resolution |
1ms |
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Accuracy |
±0.01% of reading +2 digits |
(all modes except current
operated) |
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±0.01% of reading +4 digits |
(current operated mode) |
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The contact circuits have an open circuit voltage of 24Vdc and a
short circuit current of 20mA. Each contact circuit will auto-select
for normally open or normally closed contacts. A DC voltage of
24-240Vdc may also be used to trigger either timer channel.
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Mode |
Timer Start |
Timer Stop |
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OFF |
Timer inactive |
Timer inactive |
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Internal Start |
Press 'ON' |
Contact 1 |
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Single Contact |
Contact 1 |
Contact 1 |
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Dual Contact |
Contact 1 |
Contact 2 |
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Current Operated |
Current > 20% of range |
Current < 20% of range |
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The output is automatically switched off
at the end of the test to safeguard the relay under test.
RS-232 Communication Port
An RS232 port is provided to allow connection to a PC or a printer.
ADMlog software is available as an optional extra to log results
from the 750ADM and transfer them to a spreadsheet.
T&R Link
The T&R Link allows a T&R DVS3 mk2 voltage source to phase lock to
the 750ADM current.
Supply Requirements
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Supply |
750ADM |
750ADM-H |
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115V ±10% 50/60Hz 1ph |
2000VA maximum |
1900VA maximum |
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230V ±10% 50/60Hz 1ph |
3000VA maximum |
3900VA maximum |
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The correct voltage range is automatically selected by the unit. |
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| Temperature Range |
Storage -20°C to 60°C
Operating 0°C to 45°C
Dimensions
340mm x 230mm x 230mm
Weight
21.5kg (750ADM), 23.5kg (750ADM-H)
Accessories Supplied with Units
Operating manual, mains lead, spare fuse set and carrying
strap.
Optional 750ADM-AL
Lead Set specifications
A range of output leads are available to complement the
750ADM. The standard 750ADM-AL lead set is 3m long,
recommended for use with a 230V Supply. A 1.5m lead set is
also available, and is recommended when operating from a 115V
supply. The leads consist of double insulated 95mm2 welding
cable terminated in Dinse high current connectors at the
750ADM end and high current welding clamps at the load end.
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Low current timer
leads are also included with the lead set: |
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The standard 3m lead set
weighs 9.8kg including high current
leads, timer leads and case.
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Protection and
Safety
The unit is protected by electronic over current and thermal
trips on the outputs, and circuit breakers on the input and
power circuit. An earth terminal is provided for connection to
a local earth. The unit is designed to comply with BSEN61010,
and is CE marked. |
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