Datasheet
DC POWER SUPPLIES
A Greater Measure of Condence
www.keithley.com
1.888.KEITHLEY (U.S. only)
A Tektronix Company
Series 2280S
Precision Measurement, Low Noise,
Programmable DC Power Supplies
PROTECTION
Overvoltage Protection (OVP) 2280S-32-6 2280S-60-3
Setting Accuracy
±(0.25% + 0.25 V) ±(0.25% + 0.5 V)
Resolution
125 mV 250 mV
Response Time
6 ms (typical)
9
6 ms (typical)
9
Overcurrent Protection (OCP) 2280S-32-6 2280S-60-3
Setting Accuracy
±(0.25% + 0.10 A) ±(0.25% + 0.10 A)
Resolution
25 mA 12.5 mA
Response Time
6 ms (typical)
9
6 ms (typical)
9
Overtemperature Protection (OTP) 2280S-32-6 2280S-60-3
Output turn-off Temperature
>93°C (typical) >93°C (typical)
Response Time
6 ms (typical)
9
6 ms (typical)
9
OTHER TIMING DATA
CV TO CC TRANSITION TIME (V-Set = 5V, I-limit = 0.5A, Resistive Load change 25Ω to 2.5Ω): 2.4ms.
CC TO CV TRANSITION TIME (V-Set = 5V, I-limit = 0.5A, Resistive Load change 2.5Ω to 25Ω: 1.1ms.
FUNCTION CHANGE (from detection of bus command to function change completed): 10ms (typical).
OUTPUT OFF/ON (from detection of bus command to voltage beginning to decrease): 5ms (typical).
REVERSE LEADS ACTUATION: 6ms (typical)
9
.
GENERAL
COMMON MODE CURRENT: < 6µA peak-peak.
CHASSIS ISOLATION: ±240V, any terminal to chassis. >1GΩ in parallel
with <6.8nF.
TEMPERATURE COEFFICIENT: Add the following to all accuracy specifications when
outside the range, 23°C ±5°C: (0.15 × specification)/°C for 0° to 18°C and 28° to 40°C.
MEASUREMENT DISPLAY MODES: Voltage and current, voltage only, current only.
MEASUREMENT ACQUISITION CONTROL: Continuous, Manual, External digital input,
PC bus.
LIST MODE: Maximum number of stored lists: 9.
Number of points in a list: 2 – 99.
List Storage Location: Internal memory or USB memory stick.
MATH AND FILTER FUNCTIONS:
REL: Removes offset from current reading display, Range: –1×10
6
to +1×10
6
.
Mx+b: Reading = x, M = –1×10
6
to +1×10
6
, b = –1×10
6
to +1×10
6
.
Filter: Moving average, Count: 2–100, Window: 0.01% to 100%.
MEMORY BUFFER:
2500 locations; each location contains: Voltage measurement, current measurement,
CV/CC Mode, and time stamp, NVRAM.
DISPLAY: 4.3 in. front panel color display, resolution: 480 pixels × 272 pixels.
Display Modes:
Real time voltage and current readings and settings.
Plots of stored data: voltage vs data point, current vs data point, voltage and
current vs. data point, 100 point resolution.
Plots can also display statistics: mean, maximum, minimum, peak-peak,
standard deviation.
Table of stored data: time/date, voltage, current.
Soft button and navigation wheel control.
COMMUNICATIONS:
GPIB: IEEE-488.2 compliant and status model topology.
LAN: RJ-45 connector, 10/100BT, Auto MDIX.
IP Configuration: Static or DHCP.
LXI Core 2011, version 1.4,
USB: USB2.0 device (rear panel, type B), USBTMC compliant.
USB2.0 host (front panel, type A), full speed, support USB Flash Drives.
INPUT CONNECTIONS:
Front: (2-wire). Adjustable supporting, safety shrouded banana, spade lug, or wire.
Rear: (4-wire sense). 6-pin removal screw terminal, safety shrouded cover, removable
local sense jumpers.
REAL-TIME CLOCK: Capacitive charged, 20 days between next power on cycle at 23°C
and ≤50%RH.
DIGITAL I/O: 9-pin female D-sub. 6 Input/Output pins.
Input Signal Levels:
0.7V (maximum logic low).
3.7V (minimum logic high).
Input Voltage Limits:
–0.25V (Absolute minimum).
+5.25V (Absolute maximum).
Maximum Source Current: +2.0mA@ >2.7V (per pin).
Maximum Sink Current: –50mA @ 0.7V (per pin, solid-state fuse protected).
5V power supply, limited to 0.5A @>4V (solid-state fuse protected).
Trig In minimum pulse ≥4µs, Logic Low pulse.
Meter Ready Pulse, 15–30µs, Logic Low Pulse.
EMC: Conforms to European Union EMC directive.
SAFETY:
U.S. NRTL Listing: UL61010-1 3rd ed 2012 and UL61010-2-030:2012.
Canadian Certification: CAN/CSA C22.2 No. 61010-1 3rd ed 2012.
European Union Compliance: Low Voltage Directive .
COOLING: Forced air, side intake and rear exhaust.
POWER SUPPLY: 100V/120V/220V/240V ±10%.
POWER LINE FREQUENCY: 50/60Hz ±3Hz, automatically sensed at power-on.
POWER CONSUMPTION: 630VA peak.
OPERATING ENVIRONMENT: 0° to 40°C, ≤80% RH up to 35°C, non-condensing.
Altitude: up to 2000 meters.
STORAGE ENVIRONMENT: –25° to 70°C.
LXI WEB BROWSER COMPATIBLE OPERATING SYSTEM AND SOFTWARE: Windows 2000,
Win 7 and XP compatible, supports Web browsers with Java plug-in (requires Java plug-in
1.7 or higher). Web page served by Model 2280S.
RACK DIMENSIONS: (W×H×D), without boot: 213.8 × 88.4 × 383.3mm (8.42 × 3.48 × 15.1 in.).
BENCH DIMENSIONS: (W×H×D) with boot: 255.3 × 107.2 × 415.0mm (10.1 × 4.22 × 16.34 in.)
SHIPPING WEIGHT: 13.29kg (29.3 lbs.).
NET WEIGHT: 10.85kg (23.9 lbs.).
WARR ANT Y: 3 years.
NOTES
1. Specifications based on using remote sense connections. For 2-wire
connections, add an offset of 0.5mV/A (Front terminals).
2. 6½ digit resolution, 1 PLC reading rate, filter on, autozero on.
3. 100V/s to 1000V/s rise and fall slew rates:
2280S-32-6: limited to 5V changes at a maximum of 3A; between 0V to
5V, the load current can be up to full load, 6A
2280S-60-3: limited to 10V changes at a maximum of 2A; between 0V
and 10V, the load current can be up to full load, 3.2A.
4. 6 ½ digit resolution, 1PLC integration time, Autozero: on, Filter: on
10mA and 100mA ranges: Source Delay: 2ms
1A and 10A ranges: Source Delay: 1ms.
5. Settings: Autozero: off, 0.002 PLC, Arm Source: External, Trigger
Source: Immediate, Filter: off
10mA and 100mA ranges: Source Delay: 2ms
1A and 10A ranges: Source Delay: 0ms or off
6. Time includes trigger detection, jitter, and 0.002PLC integration time.
7. Settings: Autozero: off, Output Delay: off, Source Delay: off, voltage
output is constant.
8. Settings: Autozero: off, Output Delay: off, Source Delay: off, voltage
output is constant, Measure Count: 1000.
9. Time defined as from detection of condition to start of output turn-off.
10. Filter on, 10mA and 100mA ranges: Source Delay: 2ms
1A and10A ranges: Source Delay: 1ms
Note: Specifications are subject to change without notice.
Series 2280S specifications