1604

1604 - 40,000 Count LED Bench Multimeter

  • 40,000 counts, auto/manual ranging
  • Accuracy and resolution, 0.08%, 10µV, 10mW
  • Large and bright LED display (14mm/0.56")
  • True RMS ac functions, wide ac bandwidth
  • Frequency measurement
  • Relative, T-Hold and Min-Max functions included
  • Isolated RS232 interface standard
     

DISPLAY and RANGE CONTROL
0.56” (14mm) LED display. Annunciators for all ranges, functions and 'smart' modes. Scale Length 4¾ digits 
(± 40,000 counts) except ac ranges ( 4,000 counts). Reading rate 2.5 per second. Each measurement function can use automatic or up/down manual ranging.
RS-232 INTERFACE
Opto-isolated bi-directional RS-232 interface. 9600 baud.
GENERAL
Power: 230V or 115V AC nominal 50/60Hz, adjustable internally; operating range ±14% of nominal; 3VA max.; Installation category II
Size: 260(W) x 88(H) x 235(D)mm, excl. handle/feet.
Weight: 2.0kg (4.4lb)
Operating Range: + 5°C to 40°C, 20-80% RH.
Storage Range: - 40°C to 70°C
Safety: Complies with EN61010-1.
EMC: Complies with EN55081-1 and EN50082-1.

All accuracies apply for 1 year, 19oC to 25oC.  Temperature coefficient outside these limits is <0.1 x quoted range accuracy per oC.
DC VOLTAGE
Range
Accuracy
Resolution
Notes
400mV
0.08% ± 4 dig.
10µV
 Max. Input 265V DC/AC rms
4V
0.08% ± 4 dig.
100µV
Input impedance 10MW nominal Max. input 1kV DC or AC pkNMR: >60dB @ 50/60HzCMR: >90dB @ DC/50Hz/60Hz
 
40V
0.08% ± 4 dig.
1mV
400V
0.08% ± 4 dig.
10mV
1000V
0.09%  4 dig.
100mV
AC VOLTAGE (True RMS, 4000 count scale length)
Range
Accuracy
Resolution
  
45Hz - 400Hz
400Hz - 5kHz
5kHz - 20kHz
  
400mV
0.5% ± 4 dig.
 
1% ± 4 dig.
3% ± 4 dig.
100µV
4V
2% ± 4 dig. 
5% ± 4 dig.
1mV
40V
10mV
400V
3% ± 4 dig.
100mV
750V
1% ± 4 dig.
  
1V
Accuracies apply for readings between 10% and 100% of full scale. Additional error at crest factor = 3 is typically 1%. Input impedance = 10MOhms nominal.  Max. input = 750V rms, 1kV pk. (265V rms on 400mV range). 1kOhm unbalanced CMR = >60dB at DC or 50Hz (60Hz rejection available as factory option).
RESISTANCE
Range
Accuracy
Resolution
Notes
400W
0.15% ± 6 dig.*
10mW
* 400Ohm specification applies after null Max. input 265V DC or AC rms on any range
.Max. open circuit voltage 4V 
40MOhm  accuracy applies up to 20M thereafter add 1%
4kW
0.1% ± 4 dig.
100mW
40kW
0.1% ± 4 dig.
1W
400kW
0.15% ± 4 dig.
10W
4MW
0.3% ± 6 dig.
100W
40MW
1.0% ± 10 dig.
1kW
DC CURRENT
Range
Accuracy
Resolution
Notes
4mA
0.1% ± 4 dig.
0.1µA
Max. input 1A (Fused)
Voltage burden <500mV
 
400mA
0.1% ± 4 dig.
10µA
10A (up to 1A)
0.3% ± 4 dig.
1mA
Max. input 10A (Fused)
Voltage burden <500mV
 
10A (up to 5A)
1.0% ± 4 dig.
1mA
10A (up to 10A)
3.0% ± 10 dig.
1mA
AC CURRENT (True RMS, 4000 count scale length)
Range
Accuracy
Resolution
Notes
1mA
0.5% ± 4 dig.
1µA
Max. input 1A (Fused)
Voltage burden <500mV
100mA
0.5% ± 4 dig.
100µA
10A (up to 1A)
0.8% ± 4 dig.
10mA
Max. input 10A (Fused)
Voltage burden <500mV
10A (up to 5A)
1.5% ± 4 dig.
10mA
10A (up to 10A)
3.0% ± 4 dig.
10mA
Accuracies apply over 45Hz to 10kHz for readings between 10% and 100% of range. Additional error at crest factor = 3 is typically 1%.
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