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> Medical global switching power supply industrial
Medical global switching power supply industrial
Single- and multiple-output units
Commercial Approved to UL1950, IEC950
Medical Approved to UL2601-1, EN60601,
Complies with EN61000-3-2 Class A
Ac Input: 90-264 Vac, 47-63 Hz single phase.
Input Current: Maximum input current at 90 Vac, 60 Hz with full rated
output load not to exceed 2.9 A.
Hold-up Time: 20 ms minimum from loss of ac input at full load, nominal
Output Power: Normal continuous output power is 75 W for unrestricted
natural convection, or 110 W with 26 cfm air flow.
Output Regulation: Load regulation on dual output models is measured by
40% load change from 60% rated load and input
voltage change from minimum to maximum ratings.
Output #1 requires 1A minimum load for proper regulation
of other outputs. Initial set tolerance is measured with
all outputs at 60% of full rated load. Load regulation for
single-output models measured by changing load from
5% to 50% load or 50% to full load in either direction.
Voltage Adjustment: Output #1 adjustment is 5%. Note: output #1 must not be
more than 1% below nominal to achieve full output
regulation on output #2. High voltage settings may
degrade the reliability of the unit due to excessive power
Overload Protection: Fully protected against short circuit and output overload.
Short circuit protection is cycling type power limit. Factory
set to begin power limiting at 120 W.
0.5% rms, 1% pk-pk, 20 MHz bandwidth, differential
mode. Measured with noise probe directly across output
terminals of the power supply.
POWER FAIL: Power fail signal is TTL or CMOS compatible (output goes
low <0.5 V) 5 ms before output voltage drops more than
4% below nominal voltage upon loss of AC power. The
signal is factory set to trip on 84 to 94 Vac brown-out
depending upon incoming line impedance and distortion.
Other settings are available to the user through adjustment
of built in potentiometer (consult factory for assistance).
Output will stay low for 20 ms minimum.
Main Output: 500 s typical response time for return to
within 0.5% of final value for a 50% load step change, i/
t<0.2 A/ s. Maximum voltage deviation is 3.5%. Startup/
shutdown overshoot less than 3%.
Turn-On Time: Less than 1 second at 120 Vac, 25
Overvoltage Protection: Built in on main output.
Efficiency: 72-85% depending on model.
Input Protection: Internal ac fuse provided on all units. Designed to blow
only if a catastrophic failure occurs in the unit.
Inrush Current: Inrush limited by internal thermistors. Inrush at 240 Vac,
averaged over the first ac half-cycle under cold start
conditions will not exceed 37 A.
Temperature Coefficient: 0.03%/ C typical on all outputs.
Commercial Safety: All GLC models are approved to UL1950, CSA22.2 No.
234 Level 3, IEC950 and EN60950. Consult factory for
Medical Safety: All GLM models are approved to UL2601-1, CSA-C22.2 No.
601.1, IEC601-1/60601-1. Consult factory for approval status.
