Lakeshore Learning Materials 647 - Manual (Page 13)

Lake Shore Model 647 Magnet Power Supply User’s Manual
Introduction 1-3
Agency Approvals: The Model 647 complies with the following requirements:
UL 1244 - Electrical and Electronic Measuring and Testing Equipment
VDE 0411 - Electronic Measuring Instruments and Automatic Controls
FCC 15J - Level A RFI Suppression
VDE 0871 - Level A RFI Suppression
Operating Ambient Temperature: 15 to 35 °C (59 to 95 °F)
Dimensions: 483 mm wide x 178 mm high x 508 mm deep (19 x 7 x 20 inches)
Weight: 36.4 kilograms (80 pounds). Rack mounting is standard.
Table 1-1 Model 647 DC Output Specifications
SPECIFICATION CURRENT VOLTAGE
Digital Programming Resolution:
Standard/High
10 mA / 1 mA 10 mV / 1 mV
Digital Programming Accuracy 0.1% I MAX 1% V MAX
Digital Programming Repeatability 0.01% I MAX 0.1% V MAX
Electronic Resolution:
Standard/High
4 mA / 1 mA 1 mV / 1 mV
Electronic Accuracy 0.1% I MAX 0.1% V MAX
Display Resolution: Standard/High 10 mA / 1 mA 10 mV / 1 mV
Stability (Drift) at 25 ±1 °C: Percent of full scale
output change over 8-hours under constant line and load after
a 30 minute warm-up.
±0.005% I MAX ±0.01% V MAX
Ripple and Noise: 10 Hz to 10 MHz at 1000 VA 40 µA rms 20 mV rms
Temperature Coefficient: Change in output per °C
after 30 minute warm-up.
0.1% I MAX 0.1% V MAX
Source Effect: Line regulation for any line change within
the rated line voltage.
0.005% I MAX 0.05% V MAX
Load Effect: Load regulation for a load change equal to
maximum voltage in Constant Current Mode or maximum
current in Constant Voltage Mode.
0.1% I MAX 0.1% V MAX
Analog Resistance Programming Accuracy:
0 to 10 K Ω produces negative full scale to positive full scale
current or voltage output. 5 K Ω is 0 current.
10% I MAX 10% V MAX
Analog Voltage Programming Accuracy:
Voltage input is ±0.01 V/A, ±0.01 V/V.
1% + 100 mA 2% + 100 mV
Monitoring Output Accuracy: Voltage output is
±0.01 V/A, ±0.01 V/V.
1% + 100 mA 2% + 100 mV