Electrical Specifications
Accuracies at 23°C ± 5°C, <75% RH,
guaranteed for one year.
DC Volts
Ranges: 1, 10, 100, 1000V
Resolution, 0.1mV in 1V range:
Accuracy, 1V range: ±(0.25%rdg +6dgt)
Accuracy, 10V to 1000V ranges: ±(0.25%
rdg +3dgt) up to 400V; ±(0.40% rdg
+3dgt) from 400 to 1000V
Input Impedance: 10M
Ω
CMRR: >120dB up to 1000Vdc
NMRR: >60dB at 50 or 60Hz
OL Protection: 1000VDC or Peak AC.
Transient protection: 6kV.
AC Volts.
Ranges: 10, 100, 750V
Resolution: 1mV in 10V range
Accuracy, 10V range
1)
: ±(1.5% rdg +8dgt)
Accuracy, 100V, 750V ranges
2)
:
±(1.5% rdg +8dgt)
1)
45 Hz to 10kHz;
2)
45 Hz to 10kHz up to 30V;
45 Hz to 1kHz above 30V.
Accuracy, 2 to 30V at 10 to 30kHz:
±(2.5% rdg +8dgt)
Input Impedance: 10M
Ω
shunted by <100pF
Conversion type: True RMS, AC coupled
Crest factor: 1:1 through 5:1
OL Protection, <10Hz: 400VAC or 533V
peak; >10Hz: 750Vrms or 1000V peak.
6kV transient protection.
DC Current
Ranges: 10, 40mA, 10A
Resolution: 1µA in 10mA range
Accuracy, 10, 40mA, 10A: ±(0.75% +8dgt)
Voltage burden, mA ranges: 20mV/mA;
A ranges: 30mV/A
OL Protection: 40mA input: 0.25A/500V
fuse; 10kA interrupt rating
10A input: 15A/600V fuse;100kA
interrupt rating.
AC Current
(45Hz-1kHz)
Ranges: 10, 40mA, 10A
Resolution: 1µA in 10mA range
Accuracy, 10, 40mA, 10A: ±(1.75% +8dgt)
Voltage burden, mA ranges: 20mV/mA; A
ranges: 30mV/A
Conversion type: True RMS AC coupled
Crest factor 1:1 through 5:1
OL Protection: see DC current.
Resistance
Ranges: 1, 10, 100k
Ω
, 1, 10, 40M
Ω
Resolution, 0.1
Ω
in 1k
Ω
range
Accuracy, 1k
Ω
to 1M
Ω
ranges:
±(0.5%rdg +1dgt);
10M
Ω
range: ±(1.0%rdg +2dgt)
40M
Ω
range: ±(1.5%rdg +2dgt)
Max test current: 1.0mA in 1k
Ω
rg; 150µA
in 10k
Ω
rg; 15µA in 100k
Ω
rg; 1.5µA
in 1M
Ω
rg; 0.2µA in 10 and 40M
Ω
rgs.
Max open circuit voltage: 3.0V in 1k
Ω
range; 1.3V in other ranges.
Response time: 1s in 1k
Ω
range; 3s in
other ranges
Overload protection, all ranges: 500VDC
or AC RMS
Diode/Continuity Test
Range: 1.0V, 2.25V
Resolution: 0.1mV in 1.0V range
Accuracy: ±(1.0%rdg +1dgt)
Short circuit current: 1.5mA
Max open circuit voltage: 3.0Vdc
Display response: <1s
Continuity threshold: 50
Ω
±25
Overload prot.: 500VDC or RMS AC
Optional Accessories
DL243C Standard Test Lead Set
DL248C Deluxe Test Lead Set
TL245
Standard Replacement Test Leads
TL35A
Test Leads with Alligator Clips
CT231A
150A AC Current Clamp
CT232A 1000A AC Current Clamp
CT234A 400A AC Current Clamp
CT235
1000A AC/DC Clamp
CT236A 500A AC Clamp (mV output)
CT237
200A AC/DC Current Clamp
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RMS225A.Man.07.00 11/30/00 8:30 PM Page 30
