User guide
Table Of Contents
- 1 Safety Summary
- 2 Introduction
- 3 Quick Reference
- 4 Operating Instructions
- 4.1 Instrument Hook-Up
- 4.2 Typical Constant Voltage Operation
- 4.3 Setting Current Limit
- 4.4 Typical Constant Current Operation
- 4.5 Constant Voltage/Constant Current Characteristic
- 4.6 Saving the Power Supply’s Current State
- 4.7 Connecting Two Power Supplies in Series
- 4.8 Connecting Two Power Supplies in Parallel
- 5 RS232 Interface
- 6 Maintenance
- 7 Error Messages
- 8 Specifications
- 9 Service Information
- 10 Limited Three-Year Warranty

29
7.3 Command Errors
”Communication Error<CR>” : RS232 framing, parity, or overrun error
“Syntax Error<CR>” : invalid syntax was found in the command string
“Out of range<CR>” : a numeric parameter value is outside the valid range
for the command
8 Specifications
1739
Output Ratings ( 0 °C~40 °C)
Voltage
0-30 V
Current
0-999.9 mA
Load Regulation
±
(% of output+offset)
Voltage
0.04% + 1 mV
Current
0.4% + 0.1 mA
Line Regulation
±
(% of output+offset)
Voltage
0. 1% + 3 mV
Current
0.4% + 0.3 mA
Ripple & Noise (20 Hz ~ 20 MHz)
Voltage
<1 mVrms
Current
≤ 0.4 mArms
Recovery Time
≤ 75 μs
Metering Range
Voltage
0-99.99 V
Current
0-999.9 mA
Metering Accuracy
Voltage
0.5% + 2 digits
Current
0.5% + 5 digits
General
Power Requirements 110/220 VAC ±10%, 50/60 Hz
Power Consumption ≤ 70 W
Protection Reverse polarity, current limiting
Operating Environment