Tektronix Keithley 2268 Series, Справочное руководство

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2268S-901-01 Rev. A / January 2015 247
In this section:
This section provides the output performance, environmental, and mechanical
specifications as well as regulatory approvals.
SPECIFICATIONS
Output Performance Specifications
Aux output
1
+5V: +0.4V, – 0.5V at 0.4A +15V: +1.2V, – 1.4V at 0.4A
Temperature Coefficient 100 PPM/° C from rated output voltage, after a 30-minute warm-up
Drift (8 hours) 0.05% of rated output (over an 8 hour interval with constant line, load and temperature, after a
30-minute warm-up)
Hold-up Time Typical 20 ms at any rated input line.
Transient Response Time
2,3
Less than 1 ms for 20 V to 60 V models. Less than 2 ms for 80 V to 150 V models
OVP trip point accuracy 1% of set point
Meter Accuracy
5
0.5% of actual output voltage or current ± 1 count
Data readback transfer time
4
3 ms
Programming and read back
time
Less than 300ms for the whole time loop from sending the command to getting the readback
voltage and current data
Isolation
AC Input to Output 1500 Vac
AC Input to Chassis 1500 Vac
Output to Chassis
3
500 Vac
1. Current: 0.51A minimum guaranteed, 0.72A typically available. Overcurrent protection (each output) is automatic, non-latching.
When OCP is tripped the aux voltage folds back and will recover to nominal condition when the over current condition is removed
(typ. < 0.2A).
To protect external circuits attached to the aux outputs it is recommended that customers use an appropriately rated fuse in series
with the aux outputs being used.
2. Time for the output voltage to recover within 0.5% at its rated output for a load change 10–90% of rated output current. Output set
point 10–100%.
3. ≤3 ms time for the output voltage to recover within 1% at its rated output for a load change 50% –100% or 100% - 50% of rated
output current.
4. Time to provide data back to the controller using LAN interface (does not include A/D conversion time)
5. 0.5% of actual output voltage or current ± 1 count, floating display dot (for ex. 150-5.6 model accuracy will be 0.75V, for voltage
and 0.025 for current, in the appropriate measure range). Contact factory for details regarding this mode of operation.
Section 10
Specifications