4
1021 Technical Manual
4
1.2. Specifications
Output:
0-100mA in 3 ranges:
(1)
0-99.99mA in 10uA steps
(2)
0-9.999mA in 1uA steps
(3)
0-999.9uA in 0.1uA steps
Accuracy:
+/- 0.02% of setting +/- 0.02% of range
+/- 0.02uA
Drive Voltage:
Adjustable between 14 and 40 volts.
Maximum output power 2.4 watts.
Out of Limit Warning:
A front panel indicator provides indication of insufficient drive
voltage.
Output Polarity:
Normal or Reverse, switch selected. A centre OFF position
provides an open circuit.
Output Stability:
Better than 60 ppm per ºC (-10 ºC to +50 ºC). Better than 25
ppm per hr (at constant temperature).
Null Sensitivity:
Adjustable from ±25mA to ±25uA.
Load Regulation:
Better than 20 ppm per volt change in output.
Power Supply:
8 NiMH rechargeable batteries with external mains re-charger.
Standard mains voltage is 220-250V 50/60Hz.
100-125V 50/60Hz is available but must be specified on order.
Dimensions:
200 x 75 x 110mm
215 x 100 x 120mm including protective boot
Weight:
1kg
1.4kg including protective boot
Optional Extras:
Leather Carry Case (9027)
Factory Calibration Certificate (9153)
UKAS Calibration Certificate (9105)
Additional Rechargeable Battery Packs:
230V mains charger and 8 NiMH cells (9529)
110V mains charger and 8 NiMH cells (9528)
