M a i n t e n a n c e
Periodic Service
WARNING!
Repair and service of this instrument is to be performed by qualified
personnel only. Improper repair or service could result in physical
degradation of the meter. This could alter the protection from electrical
shock and personal injury this meter provides to the operator. Perform
only those maintenance tasks that you are qualified to do.
Cleaning
Pe r i o d i cal ly clean your meter’s case using a damp cloth. DO NOT u s e
a b ras ive, flammable liquids, cleaning solvents, or strong detergents as
they may damage the finish, impair safety, or affect the reliability of the
s t r u c t u ral components.
Battery Replacement
Remove screws from battery compartment cover on back of meter and
remove cover. Replace batteries with fresh batteries paying attention to
p o l a r i ty position. Replace cover and screw s .
Specifications
AC Amps Measurement - Jaw input (45Hz to 400Hz)
*DL269 400A range only
*DL289 45Hz to 400Hz True RMS (Crest factor <3:1)
DC Low Amps Measurement (test lead input)
AC Low Amps Measurement (test lead input, 45Hz to 400Hz)
*DL289 45Hz to 400Hz True RMS (Crest factor <3:1)
DC Volts Measurement
AC Volts Measurement (45Hz to 400Hz)
*DL289 45Hz to 1KHz True RMS (Crest factor <3:1)
Ohms Measurement
Diode Test
Capacitance Measurement
Temperature Measurement (DL279 & DL289 only)
Frequency Measurement
Minimum frequency: 0.5Hz, DC V offset should be zero
Sensitivity: > 1.0V rms
Duty (%) Cycle Measurement
0.5Hz to 100kHz (pulsewidth > 2µ sec)
Continuity Measurement
Physical Specifications
DL269/DL279/DL289-MAN P. 4
Range Resolution Accuracy Overload Protection
40A 0.01A ±2.9% +15 dgts 600V
400A 0.1A ±1.9% +8 dgts
Range Resolution Accuracy Overload Protection
400µA 0.01µA ±1.2% +3 dgts 2000µA / 600V
2000µA 0.1µA
Range Resolution Accuracy Overload Protection
400µA 0.01µA ±2.0% +5 dgts 2000µA / 600V
2000µA 0.1µA ±1.5% +5 dgts
Range Resolution Accuracy Overload Protection
400mV 0.1mV ±0.5% +4 dgts 600V
4V 1mV
40V 10mV
400V 100mV
1000V 1V ±0.8% +10 dgts
Range Resolution Accuracy Overload Protection
4V 1mV ±2.0% +5 dgts 600V
40V 10mV
400V 100mV
750V 1V
Range Resolution Accuracy Overload Protection
400Ω 100mΩ ±1.0% +4 dgts 600V
4kΩ 1Ω
40kΩ 10Ω
400kΩ 100Ω
4MΩ 1kΩ
40MΩ 10kΩ ±2.0% +4 dgts
Range Open Circuit Vo l t a g e Test Current (typical) Overload Protection
2.0V < 3.0V DC 0.25mA 600V
Range Resolution Accuracy Overload Protection
40nF 0.01nF ±3.5% +6 dgts 600V
400nF 0.1nF
4µF 0.001µF
40µF 0.01µF
400µF 0.1µF
4000µF 1µF
Range Resolution Accuracy Overload Protection
-22˚ to 14˚F 0.1˚F ±5.4˚F 30V
(-30˚ to -10˚C) (0.1˚C) (±3.0˚C)
15˚ to 752˚F 0.1˚F ±1.0% +3.6˚F
(-9˚ to 400˚C) (0.1˚C) (±1.0% +2.0˚C)
Range Resolution Accuracy Overload Protection
9.999Hz 0.001Hz ±0.1% +4 dgts 600V
99.99Hz 0.01Hz
999.9Hz 0.1Hz
9.999kHz 1Hz
99.99kHz 10Hz
Range Accuracy Overload Protection
01. to 99.9% ±(0.2% per kHz +0.1%) +5 count 600V
Open Circuit voltage <2.7V Overload Protection
Threshold Approximately <20Ω 600V
Operation temperature 32˚ to 104˚F (0˚ to 40˚C)
Storage temperature -4˚ to 140˚F (-20˚ to 60˚C)
Relative humidity 0% to 80% at 32˚ to 95˚F (0˚ to 35˚C),
0% to 70% at 32˚ to 131˚F (0˚ to 55˚C)
Temperature coefficient Nominal 0.1 x (Specified accuracy) / ˚C
(<18˚ or >28˚C ; <64˚ or >82˚F)
Altitude Operating - up to 2000m
Storage - 10000m
Pollution degree 2
Installatin category CAT III 600V, CAT II 1000V
Certifications UL & cUL standard UL 3111-1 Listed
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