LD300 AIM-TTI INSTRUMENTS, LD300 Datasheet - Page 4

• Manufacturer Part Number: LD300
• Description: DC ELECTRONIC LOAD
• Manufacturer: AIM-TTI INSTRUMENTS

Specifications of LD300

• Voltage Measuring Range Ac: 0V To 80V
• Meter Display Type: LED
• Operating Temperature Range: +5°C To +40°C
• Lead Free Status / RoHS Status: na

Voltage and Current: 80 volts maximum, 80 amps maximum.
Power Dissipation:
Min. Operating Volts: Increases with current, <0.5V at 10A, <1V at 40A,
Constant Current Mode
Setting Range:
Meter Resolution:
Setting Accuracy:
Regulation:
Slew Rate Range:
Constant Resistance Mode
Setting Range:
Meter Resolution:
Setting Accuracy:
Regulation:
Slew Rate Range:
Constant Conductance Mode
Setting Range:
Meter Resolution:
Setting Accuracy:
Regulation:
Slew Rate Range:
Constant Voltage Mode
Setting Range:
Meter Resolution:
Setting Accuracy:
Regulation:
Slew Rate Range:
Constant Power Mode
Setting Range:
Meter Resolution:
Setting Accuracy:
Regulation:
Slew Rate Range:
Control Modes:
Level A, Level B, Transient Internal (switching between A and B using the
built-in generator), Transient External (switching between A and B using an
external switching signal), and Remote (level proportional to an external
voltage).
Level A, Level B:
Each set by 10-turn potentiometer. Range, resolution and setting accuracy
as shown above.
Slew Rate Control
All changes of level are subjected to slew rate control which is adjustable
over a 30,000:1 range by a 3 position switch and vernier.
Input Enable
Latching switch which turns the load condition on.
Slow Start
Engages slew rate control to limit the speed of the ON transition when the
input is enabled.
Dropout Voltage
Defines a minimum voltage below which the load current will reduce to zero
(as may be required for testing batteries or power sources that can not be
short circuited). Adjustable from 0V to 80V.
Technical Specifications
RATINGS
OPERATING MODES
LEVEL CONTROL
Designed and built in Europe by:
Glebe Road, Huntingdon. Cambs. PE29 7DR United Kingdom (UK)
Tel: [phone] Fax: [phone]
Email: [e-mail] Web: www.tti-test.com
Thurlby Thandar Instruments Ltd.
320 watts maximum continuous at 28
Derating to 300 watts continuous at 40
0 to 80A in 2 ranges, set by 10 turn control.
1mA on 8A range, 10mA on 80A range.
± (0.2% + 20mA).
<30mA for a 20W to 280W power change.
<8mA/ms to >2500A/ms
0.04 to 100 in 2 ranges, set by 10 turn control.
10m on 10 range, 100m on 400 range.
± (0.5% + 2 digits).
<2% for a 20W to 280W power change.
<3.3 /s to >4000 /ms
0.01A/V to 40A/V in 2 ranges, set by 10 turn control.
0.001A/V or 0.01A/V depending on range.
± (0.5% + 2 digits).
<2% for a 20W to 280W power change.
<33mA/V/s to >400A/V/ms
Vmin to 80V in 2 ranges, set by 10 turn control.
Vmin varies with current - see Ratings.
1mV on 8V range, 10mV on 80V range.
± (0.2% + 2 digits).
<30mV for a 20W to 280W power change.
<2.5V/s to >800V/ms
0 to 320W, set by 10 turn control.
1W.
± (0.5% + 2 W).
<2% for a 20W to 280W power change.
<0.1W/ms to >3,200W/ms
<2V at 80A.
o
C.
o
C.
Pulse Repetition Rate: 0.1Hz to 10kHz in 3 overlapping ranges.
Setting Resolution:
Setting Accuracy:
Pulse Duty Cycle:
Sync Output:
Dual 4 digit LED displays showing a variety of settings or measurements as
set by a five position switch.
Setting Displays:
Measurements:
Meter Accuracy:
Remote or Local voltage sensing can be selected via a rear panel switch.
Sense connections are on the rear panel terminal block.
Input Impedance:
Max. Voltage Drop:
Analogue - the level for any mode can be set by an external analogue volt-
age (4V full scale).
TTL - the change between the Level A and Level B settings for any mode
can be done in response to an external logic signal.
The inputs for analogue or TTL have an impedance of 400k
negative terminal and a common mode range of ±100V.
Remote Disable - when the front panel input enable switch is in the on po-
sition, this input can be used to turn the load on or off in response to an ex-
ternal logic signal. Fully opto isolated input.
An analogue signal representing the current waveform is available for con-
nection to an oscilloscope or external meter. Scaling is 50mV/Amp and
compliance is ±3V with respect to the load negative terminal.
The load incorporates both a power limiter circuit and a fault trip which re-
sponds to excess voltage, current, power or temperature. The trip puts the
load into a high impedance state. Surge suppessors are incorporated to
limit transient voltage spikes.
Rear Terminals:
Front Terminals:
Power Requirement: 220V - 240V or 110V - 120V ±10%, 50/60Hz.
Operating Range:
Storage Range:
Environmental:
Safety and EMC:
Size:
Weight:
Option:
Accuracy specifications apply for 18
Thurlby Thandar Instruments Ltd. operates a policy of continuous development and
reserves the right to alter specifications without prior notice.
TRANSIENT GENERATOR
DISPLAYS and METERING
REMOTE VOLTAGE SENSE
REMOTE CONTROL
CURRENT MONITOR
PROTECTION
GENERAL
0.1Hz, 1Hz, 10Hz depending on range.
± 2% of range.
1% to 99% continuously variable.
Pulse synchronous with transient level change.
Level A and Level B, Frequency and Duty Cycle,
Slew Rate and Drop Out.
Amps and Volts, Watts and Ohms (calculated from V
and I measurements).
Voltage ±(0.1% + 1 digit), Current ±(0.2% + 20mA).
680k (each input) to load negative.
6 volts.
Input via 6mm terminal/binding posts. Remote sense,
current monitor, remote control via terminal block.
Input via 4mm terminal/binding posts (30A max.).
Current monitor via 4mm sockets.
Installation Category II. Consumption 30VA max.
+5
-40
Indoor use at altitudes up to 2000m.
Pollution degree 2.
Complies with EN61010-1 and EN61326.
130 x 212 x 435mm [HxWxD], (3U x half rack).
6kg.
19-inch rack mount kit.
o
o
C to +40
C to +70
o
C to 28
o
o
C, 20% to 80% RH.
C.
o
C and 50W power.
to the power
82100-0094