Electronic Measurements Inc. HCR Power supply
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Model:
HCR
Date:
1990
Category:
Group:
Description:
Information
The following specifications describe the published
operational characteristics of this series of power supplies.
250 Watts nominal output.
AC Input: 250 watt model, 10 5™130V, 4 7-6 3Hz optional.
Units are shipped with terminal block, line cord available
on request.
REGULATION:
Voltage Mode: For line voltage variations and load current
variations within the rating of the supply, the output
voltage will not vary more than 0.1% of the maximum voltage
rating.
Current Mode: For line voltage variations and load voltage
variations within the rating of the supply, the output
current will not vary more than .25% of the maximum current
rating.
On those uni t s in which the percentage of voltage or
current ripple exceeds the specified regulation, the
regulation will appear to be degraded due to the effect of
this ripple on the measurement.
RIPPLE:
Measured with either positive or negative grounded and 100%
output voltage and cur rent into a resistive load. (See
rating chart)
(At 50Hz AC input is 30% above 60Hz rating)
The output voltage or current will remain within 0.05% for 8
hours after warm-up, with constant external effects.
TRANSIENT RESPONSE:
Upon instant application of of the maximum rating of output
voltage will recover its final value within 50ms line
variations are corrected to 1% within 50ms of their' occurrence.
TEMPERATURE COEFFICIENT:
Output voltage T.C. is 0.02% per degree C of maximum rating,
Output current T.C. is 0.03% per’ degree of maximum rating.
OPERATING TEMPERATURE:
0-50 Degree C (0-40 Degree C for 50Hz input with no derating
required. Derate current linearly to 50% of rating table
{pg. ) at 71 Degree C ambient.
STORAGE TEMPERATURE:
-10 Degrees to +85 Degrees C
GENERAL
RESOLUTION:
The voltage control is a ten turn potentiometer. The current
control is a one turn cermet type potentiometer.
Manual type:
Service and User Manual
Pages:
48
Size:
2.36 Mbytes (2472878 Bytes)
Language:
english
Revision:
Manual ID:
Date:
1990 01 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2016 10 03
MD5:
270dbd9ad5b09b0878babbd23fee5741
Downloads:
580
Information
1.1 Description
1 . 2 Specifications
1. 3 Features
1.4 Cooling
1 . 5 Mechanical
1 . 6 Installation
1 . 7 Power Requirements
OPERATING INSTRUCTIONS
2.1 Controls and Indicat
2.2 General Operation
2.3 Preparation for1 Use
2.4 Modes of Operation
2.4, Normal Operation
2.4. Remote Sensing
2.4, Remote Programming
2.4. Parallel Operation
2.4. Series Operation