TTI 1604 - Specifications; Accuracy; DC Volts; AC Volts (True RMS)

Specifications
ACCURACY
Accuracies apply for 1 year 19°C to 25°C. Temperature coefficient outside these limits is
<0·1 x quoted range accuracy per °C.
DC Volts
Range Accuracy Resolution Notes
400mV 0·08% ± 4 dig. 10µV
265V DC/AC rms max
Input impedance 10MΩ nominal
4V 0·08% ± 4 dig. 100µV
Max in
p
ut 1000V
NMR:>60dB @ 50/60Hz
†
40V 0.08% ± 4 dig. 1mV DC/AC pk.
CMR:>90dB @ DC/50Hz/60Hz
†
400V 0·08% ± 4 dig. 10mV
1000V 0·09% ± 4 dig. 100mV
AC Volts (True RMS)
Range Accuracy Resolution
45Hz - 400Hz 400Hz - 4kHz 4kHz - 20kHz
400mV 1% ± 4 dig. 2% ± 4 dig. 100µV
4V 1mV
40V 0·5% ± 4 dig 2% ± 4 dig 5% ± 4 dig. 10mV
400V - - 100mV
750V 1%#± 4 dig. - - 1V
Accuracies apply for readings between 400 and 4,000 counts. Additional error at crest
factor = 3 is typically 1%. Input impedance = 10MΩ nominal.
1kΩ unbalanced CMR = >60dB at DC/50Hz/60Hz
†
.
Max. input = 750V rms, 1kV pk. (265Vrms on 400mV range).
Resistance
Range Accuracy Resolution Notes
400Ω 0·15% ± 6 dig.∗ 10mΩ
4kΩ
0·1%#± 4 dig.
100mΩ
40kΩ
0·1%#± 4 dig.
1Ω
Max. input 265V DC or ACrms any range.
400kΩ
0·15% ± 4 dig.
10Ω
Max. open circuit voltage 4V.
4MΩ
0·3%#± 6 dig.
100Ω
40MΩ (up to 20MΩ)
1·0%#± 10 dig.
1kΩ
40MΩ (up to 40MΩ)
2·0%#± 10 dig
1kΩ
∗ after Null
†
60Hz rejection is a factory option.
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