Frothingham Electronics Corp Customer Support

• Support Home
• FEC200
• SC924
• CV300B
• VF40D
• PLS1000CM
• Scan500
• FreeDOS
• Thermal Testing

Schematics Introduction:

Tests and Programs:

Accuracy/Calibration: Specifications Calibration Overview Calibration Step-by-Step Step-by-Step .pdf file

Troubleshooting: Introduction Schematics

FEC Home > Customer Support > PLS > Specifications

PLS1000CM Specifications

TESTS PERFORMED

4066-1 and 4066-2	IO to 50A, SURGE to 1000A, VR to 1300V Note: IO 100A for 3 cycles maximum Duty Cycle and repetitions programmable VF measured during final SURGE pulse.
SURGE (single pulse)	Peak current to 1200A
VF	Peak current to 1200A with 4mS pulse. Current is de-rated for longer pulses.
THERMAL RESPONSE	IH to 100A at 20mS. 50A at any width. IM 10mA-256mA IH, TH, TMD, 1/K, fully programmable Readout in DVF or ºC/W
THERMAL RESISTANCE	IH to 50A, readout in ºC/W Stops at time programmable in seconds or when operator presses a key. DVF and VF displayed at 500mS intervals during the test.

RANGES (forcing)

SURGE	0-1200A	±1% and ±0.1A
IO	0-3.0A	±1% and ±20mA 0-50A ±1% and ±0.1A
VF	0-300.0mA 0-3.000A 0-6.00A 0-1200.0A	±1% and ±0.1mA ±1% and ±1mA ±1% and ±10mA ±1% and ±0.1A
IH for thermal tests	0-300.0mA 0-3.000A 0-6.00A 0-1200.0A	0-300.0mA ±1% and ±0.1mA 0-3.000A ±1% and ±1mA 0-6.00A ±1% and ±10mA 0-1200.0A ±1% and ±0.1A
IM	10Ma-256mA	±2%

COMPLIANCE VOLTAGE

The tester will produce at least 5V at its terminals at any legal current. Out of compliance conditions are detected and readings marked "Invalid".

TIMING

Pulses both rectangular and half sine are correct within ±1% except as noted below. TMD is correct ±1% and ±2µS except as noted below.

Notes:

For all tests except Thermal and VF types, there is a large SCR in series with the Forward Current Supplies. The time for the supply to turn on and the SCR to fire is about 300µS. For half sine pulses, this clips off a small part of the rising edge. Since this is a low current part of the wave, the effect on the total energy is very small.

The SCR is not used for Thermal or VF tests.

The TMD is measured from the time the IH is switched off. The time required for the switch from IH to IM is variable, a complex function of the DUT, the IH and IM programmed and variations in the power supplies. The "Cooling plot" function available in the software program "VFS2" is very useful in evaluating this effect.

RANGES (readout)

Voltage (except Thermal)	0-20.000V	±0.25% and ±2mV
Voltage for VF at IM	0-1.6383V	±0.25% and ±0.5mV
THETA (THERMAL RESPONSE)	The scales used for this output are just digital calculations using measurements taken on the ranges above and depend on these, for their accuracy.