Operator`s manual

22
* * Typically 3 to 5 digits of drift will be observed at full scale at 20Hz.
Crest Factor Range: Waveforms with a Peak / RMS ratio of 1 :1 to 3:1 at full scale.
RESISTANCE
RANGE RESOLUTION ACCURACY for 1 Year
FULL SCALE VOLTAGE ACROSS
UNKNOWN RESISTANCE
200Ω 0.01Ω
± (0.1% reading + 4 digits) 0.2V
2kΩ
20k
Ω
200k
Ω
0.1
Ω
1Ω
Ω
10
Ω
± (0.1% reading + 4 digits)
2V
2V
0.2V
2000kΩ
20M
Ω
100
Ω
1k
Ω
± (0.25% reading + 4 digits)
2V
2V
Overload Protection: 250V DC/AC rms on all ranges.
Response Time (To Rated Accuracy) : 5 seconds maximum on 20MΩ range; 2 seconds maximum on all
other ranges.
Diode Test:
The 200, 2k, and 20kΩ ranges have enough voltage to turn on silicon junctions to check for proper
forward to back resistance. The 2kΩ range is preferred and is marked with a large diode symbol on the
front panel of the instrument.
MAXIMUM INPUT SIGNAL LIMITS
FUNCTION
SELECTED
RANGE
SELECTED
INPUT
TERMINALS
MAXIMUM INPUT
OVERLOAD
DC ALL RANGES 1200VDC or Peak AC
20V, 200V, 1000V 1000VDC or Peak AC
V
AC
200mV, 2V
V / Ω and
COMMON
1000Vrms for no longer than 15 sec.
2A Fuse protected: F 2A / 250V
20A
DC or
AC
ALL RANGES
mA / 20A and
COMMON
Not fused
kΩ ALL RANGES
V / Ω and
COMMON
250VDC or VAC rms
OPTIONAL ACCESSORIES
DL243C Basic Test Lead Set
DL248C Deluxe Test Lead Set
TL245 Standard Replacement Test Leads
TL36 Test leads with alligator clips
CT231A 150A AC Current Clamp
TC 253A Temperature Converter