CEM DT-5500 Instruction Manual
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DIGITAL INSULATION TESTER
INSTRUCTION MANUAL
SAFETY INFORMATION
Read the following safety information carefully before
attempting to operate or service the meter.
To avoid damages to the instrument do not apply the
signals which exceed the maximum limits shown in the
technical specifications tables.
Do not use the meter or test leads if they look damaged.
Use extreme caution when working around bare
conductors or bus bars.
Accidental contact with the conductor could result in
electric shock.
Use the meter only as specified in this manual;
otherwise, the protection provided by the meter may be
impaired.
Read the operating instructions before use and follow
all safety Information.
Caution when working with voltages above 60V DC or
30V AC RMS. Such voltages pose a shock hazard.
Before taking resistance measurements or testing
acoustic continuity, disconnect circuit from main power
supply and all loads from the circuit.
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Safety symbols:
Caution refer to this manual before using the meter.
Dangerous voltages.
Meter is protected throughout by double insulation or
reinforced insulation.
When servicing, use only specified replacement parts.
CE Comply with EN-61010-1
1. SPECIFICATIONS
1-1 General Information
Environment conditions:
① Installation Categories II
② Pollution Degree 2
③ Altitude up to 2000 meters
④ Indoor use only
⑤ Relatively humidity 80% max.
⑥ Operation Ambient 0~40ºC
Maintenance & Clearing:
① Repairs or servicing not covered in this manual should
only be performed by qualified personnel.
② Periodically wipe the case with a dry cloth. Do not use
abrasives or solvents on this instruments.
Display: Large LCD with dual display
Measurement Range: 200Ω, 200kΩ, 200MΩ/250V,
200MΩ/500V, 2000MΩ/1000V,
750V/ACV, 1000V/DCV.
Sampling Rate: 2.5 times per second.
Zero Adjustment: Automatic adjustment.
Over Range Indicator: Number 1 of highest digit is
displayed.
Low Battery Indication: The is displayed when the
battery Voltage drop below the
operating voltage.
Operating Temperature: 0ºC to 40ºC (32ºF to 104ºF) and
Humidity below 80% RH
Storage Temperature: -10ºC to 60ºC (14ºF to 140ºF) and
Humidity below 70% RH
Power source: DC9V (6x1.5V Size “AA” battery or Equivalent)
Dimensions: 200(L) x 92(W) x 50(H) mm
Weight: Approx 700g include battery
Accessories: Test leads, 6pcs battery, Carrying case, manual.
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1-2 Electrical Specifications
Accuracies are specified in the way:
±(…% of reading +…digits) at 23ºC±5ºC,below 80% RH.
OHMS
Range
Resolution
Accuracy
Max. open
Circuit
Voltage
Overload
Protection
200Ω
0.1Ω
+(1%+2)
4.5V
250Vrms
200kΩ
0.1kΩ
3.0V
Continuity Beeper
Range
Resolution
Operation
Resistance
Max.open
Circuit
Voltage
Overload
Protection
•)))
0.1Ω
Resistance≤40Ω
4.5V
250Vrms
Short circuit current
≤200mA
DC Voltage
Range
Resolution
Accuracy
Input
Impedance
Overload
Protection
1000V
1V
+(0.8%+3)
10MΩ
1000Vrms
AC Voltage (40Hz~400Hz)
Range
Resolution
Accuracy
Input
Impedance
Overload
Protection
750V
1V
+(1.2%+10)
10MΩ
750Vrms
Meg OHMS
Range
Resolution
Accuracy
Terminal Voltage
200MΩ/250V
0.1MΩ
+(3%+5)
250V+10%~-0%
200MΩ/500V
0.1MΩ
500V+10%~-0%
0~1000MΩ/1000V
1MΩ
1000V+10%~-0%
1000~2000MΩ
/1000V
+(5%+5)
Range
Test Current
Short circuit current
200MΩ/250V
1mA
250KΩ(load)
≤1mA
200MΩ/500V
500KΩ(load)
0~1000MΩ
/1000V
1MΩ
1000~2000MΩ
/1000V
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