Specifications - Time Electronics 1018 Technical Manual

2. Specifications

Voltage Ranges/Accuracy 0 - 9.99999mV in 10nV steps,
Current Range/Accuracy
Resistance Range/
Accuracy
Deviation Control
Temperature Coefficient
Long Term Stability
Short Term Stability/Noise 10mV range: <0.2uV/sec, <0.3uV/10sec, <0.4uV/min
Warmup and Settling time <10 minutes to full accuracy. Settling: < 0.5sec, 100V range, 3sec max
Output Connections
Null Measure
Power Supply
Operating Temperature:
Operating Humility:
Dimensions
0 - 99.9999mV in 100nV steps, ± 0.01% of setting ± 0.004% of range
0 - 999.999mV in 1µV steps,
0 - 9.99999V in 10µV steps,
0 - 99.9999V in 100µV steps,
The above accuracies are independent of thermal emfs which can be
up to 3uV depending on the type of leads and connections used. This should
be allowed for in the expected accuracy.
Output resistance: 10mV & 100mV: 10R. 1V & 10V: <300mR. 100V: <2R
Drive current max: 10&100mV: as 10R o/p res. 1V&10V: 0.15A. 100V: 10mA.
Short circuit current: 350mA limited
0 - 99.9999mA in 0.1uA steps, ± 0.02% of setting + ± 0.004% of range
Drive voltage max: 10V
0 - 9.99999kR in 0.01R steps, ± 0.05% of full scale
Power rating : 0.25W per resistor
End resistance : less than 250 milliohms
0% to 0.999% in 0.001% steps; Deviation accuracy: V&I output, 0.5%
<5 ppm per degC
<5ppm/day <15ppm/90day, <25ppm/year
100mV range: <0.2uV/sec, <0.4uV/10sec, <0.6uV/min
1V range: <0.2uV/sec, <0.5uV/10sec, <1uV/min
10V range: <1uV/sec,
100V range: <40uV/sec, <100uV/10sec, <500uV/min
100mA range: <0.2uA/sec, <0.3uA/10sec, <0.5uA/min
The output is via 4mm low thermal emf shrouded sockets (0.2uV/degC).
A mains earth socket is provided for screening purposes. A three position
output switch allows the output to be reversed or disconnected as required.
A rear panel connector is provided for the null amplifier output, 0 to +/-200mV
representing the indicator full scale.
Sensitivity: Max 1uV. Min 200mV fsd. Input R:>1Mohm. Rem o/p +/-200mV
The 1018 can be powered continuously from a 230V 50/60 Hz (110V to order)
mains supply, or from the internal rechargeable battery pack. A front panel
LED indicates when the batteries are low.
0 to 50degC (32 to 120degF). 15 to 25degC for optimum performance.
10 to 90% non-condensing 25degC (77degF)
290 x 250 x 110mm (11.5 x 10 x 4.3ins) Weight 2.4kg (5.4lb)
± 0.02% of setting ± 0.005% of range
± 0.005% of setting ± 0.002% of range
± 0.005% of setting ± 0.002% of range
± 0.01% of setting ± 0.004% of range
<2.0uV/10sec, < 5uV/min
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