Model 2231A-30-3 Triple-channel DC Power Supply Performance Verification S ection 2: Specifications
077102700/ July 2014
2-3
Table 3: Model 2231A-30-3 combined channel characteristics
Characteristic
Description
Combined Channel Characteristics,
nominal
The instrument can be configured to provide functionality on Channels 1 and 2
together.
Series Combinations, nominal
Delivers up to 60 V when Channel1 and Channel 2 are wired in series. Voltage
Readback is the combined voltage. Settings changes are to the combined
voltage. Current Readback is for Channel 1 only. If the currents in the two
channels are significantly different, there is no indication of CC/CV status for
Channel 2.
Available Series Configurations
Channels 1 and 2 are connected in series. Either channel 1 or channel 2 may
be the most positive source.
Series Combination Voltage
Accuracy, typical
±(0.5% of the s 30mV) at 25 °C ±5 °C.
Series Combination Current
Accuracy, typical
±(0.2% + 15mA) at 25 °C ±5 °C for Channel 1 current. The current is only
measured for Channel 1. The error is the same as for the Current
Measurement Accuracy.
Parallel Combination, nominal
Delivers up to 6A when CH1 and CH2 are wired in parallel. The meter reads
back the combined current.
Available Parallel Configurations,
nominal
CH1 and CH2 are connected in parallel (+ to + and – to –).
Parallel Combination Voltage
Accuracy, typical
±(0.2% of s 30mV) at 25 °C ±5 °C
Parallel Combination Current
Accuracy, typical
±(0.2% +25mA) at 25 °C ±5 °C
Table 4: Series 2231A Triple-Channel instrument characteristics
Characteristic
Description
Instrument Characteristics, nominal
Characteristics and specifications of features unique to this product, but
unrelated to a particular channel.
Instrument-Specific Mains
Requirements
2231A-30-3
Line
Selection
Voltage
Frequency
Fuse Rating
Max VA
Switch
110V
110-120
50/60Hz
6.3A TH 250V
750
220V
220-230
50/60Hz
3.15A TH 250V
750
Table 5: Common characteristics
Item
Description
Setup Memory, nominal
30 setup memory locations.
Output Timer, nominal
The product includes a timer that can be used to disable the output after
predetermined period of time.
Timer Set Time, nominal
The Timer may be set to any value between 1 and 999,999 seconds.
Timer Accuracy
±100 ppm.
Software Voltage Limit, nominal
The product offers the opportunity to change the maximum settable voltage on
a temporary basis. The MAX VOLT menu entry, when set below hardware
maximum limit, disallows adjusting the product to voltages in excess of the
MAX VOLT limit.
Cleaning Requirements,
nominal
Inspect the power supply as often as operating conditions require. To clean
the exterior surface, perform the following steps:
1. Remove loose dust on the outside of the power supply with a lint free cloth.
Use care to avoid scratching the display.
2. Use a soft cloth dampened with water to clear the power supply.
Use an aqueous solution of 75% isopropyl alcohol for more efficient cleaning.
Caution: To avoid damage to the surface of the power supply, do not use any