CEM DT-6650 Multifunction Installation Tester Instruction Manual

May 15, 2024
CEM

CEM DT-6650 Multifunction Installation Tester

CEM-DT-6650-Multifunction-Installation-Tester-PRO

Product Information

General Specification:

  • Power Source: Battery
  • Battery Life: CAT Rating
  • Protection Classification: Protection Rating
  • LCD Display: Yes
  • Operating Temp: As per specifications
  • Relative Humidity: As per specifications
  • Storing Temp: As per specifications
  • Operating Altitude: As per specifications
  • Protective device: Yes
  • Dimensions: As per specifications
  • Weight: As per specifications

Safety Information:
Meets BS EN61557 standards for electrical safety in low voltage distribution systems.

Technical Specifications:

  • LOOP Resistance:
    • L- PE (Hi-Amp): Various ranges available
    • L- PE (No Trip): Various ranges available
  • LINE Resistance:
    • L- N: Various ranges available
  • RCD (BSEN 61557-6):
    • Rcd Rating (I_n): Various test currents available
    • Test current: x1/2, x1, x2, x5

Product Usage Instructions

Insulation Resistance Testing:
Ensure the tester is properly connected and set to the desired terminal voltage. Follow the specified ranges and resolutions for accurate readings.

Earth Resistance Testing:
Select the appropriate range based on the resistance to be measured. Connect the tester correctly and follow the resolution guidelines for accurate results.

RCD Testing:
Choose the desired test current and RCD form. Ensure correct polarity and timing accuracy for reliable RCD testing results.

FAQ (Frequently Asked Questions)

  • Q: What is the battery life of the DT-6650 Multifunction Installation Tester?
    A: The battery life is as per the CAT Rating specifications.

  • Q: Can the DT-6650 tester measure insulation resistance at different terminal voltages?
    A: Yes, the tester can measure insulation resistance at various terminal voltages ranging from 125V to 1000V.

  • Q: How accurate is the earth resistance measurement with the DT-6650 tester?
    A: The accuracy of earth resistance measurement is within the specified range of +(2%+30d) to ensure reliable results.

FEATURES

The DT-6650 is a rugged multifunction installation tester with 3.5” TFT colour LCD display; provides insulation resistance, earth resistance, loop impedance, voltage, RCD, PFG and PSC testing. It is designed with an in-built software system and ensures that the safety of electrical installations in domestic, commercial and industrial applications. DT-6650 can ensure that fixed wiring is safe and correctly installed. It’s fast sampling and dual display, clear symbols and exceptionally wide viewing angle provides easy and safe readings.

  • 3.5” TFT Colour display
  • Fast high current loop test
  • Variable RCD current mode for customized settings
  • PASS/FAIL indication for RCD tests
  • Select voltage measurement between L-N, L-PE and N-PE
  • Support SD memory and USB and Blue tooth interface
  • Internal Memory
  • Safe Earth Volt Touchpad detects raised earth voltages >50V indicating potentially dangerous situations

General Specification

  • Power Source 12V DC (8 x 1.5V AA Size Alkaline batteries)
  • Battery Life Average of 15hours
  • CAT Rating CAT III 600V
  • Protection Classification Double Insulation
  • Protection Rating IP65
  • LCD Display 320×240 dot matrix
  • Operating Temp 0°C~ 45°C
  • Relative Humidity
    • 95% (10°C~ 30°C) Non-condensing
    • 75% (30°C~ 40°C) Non-condensing
  • Storing Temp -10°C~ 60°C
  • Operating Altitude 2000m
  • Protective device 500mA Fast response BS 88 Fuse
  • Dimensions 10.5cm(L) x 22.5cm(W) x 13cm(H)
  • Weight 1.56kg

Safety Information

This instrument has been tested according to the below regulations:

  • EN 61326: Electrical equipment for measurement, control and laboratory use.
  • EN 61010-1: Safety requirements for electrical equipment for measurement, control and laboratory use – Part 1: General requirements.
  • BS EN61557: Electrical safety in low voltage distribution systems up to 1000V AC and 1500V DC

Technical Specifications

LOOP Resistance

  • L- PE (Hi-Amp)****
    Range (Ω)| Resolution(Ω)| Accuracy
    ---|---|---
    0.23 – 9.99| 0.01| ±(4% of reading + 4 digits)
    10.0 – 99.9| 0.1
    100 – 999| 1
    • Measuring Current: 4.0 A
    • Range of the Voltage Used: 195V AC – 260V AC (50,60Hz)
  • L- PE (No Trip)****
    Range (Ω)| Resolution(Ω)| Accuracy
    ---|---|---
    0.23 – 9.99| 0.01| ±(5% of reading + 6 digits)
    10.0 – 99.9| 0.1
    100 – 999| 1
    • Measuring Current: < 15mA
    • Range of the Voltage Used: 195V AC – 260V AC (50,60Hz)

LINE Resistance

  • L- N****
    Range (Ω)| Resolution(Ω)| Accuracy
    ---|---|---
    0.23 – 9.99| 0.01| ±(4% of reading + 4 digits)
    10.0 – 99.9| 0.1
    100 – 999| 1
    • Measuring Current: 4.0 A
    • Range of the Voltage Used: 195V AC – 260V AC (50,60Hz)
  • RCD (BSEN 61557-6)
    • Rcd Rating (I_n): 10mA, 30mA, 100mA, 300mA, 500mA and 1A.
    • Test current: x1/2, x1, x2 and x5

Accuracy at applied test current

Test current Accuracy
x1/2 ±(1% of reading+ 1 digits)
x1 ±(1% of reading+ 1 digits)
x2 ±(1% of reading+ 1 digits)
X5 ±(1% of reading+ 1 digits)
  • Form of the Test Current: Sine wave form (AC), Pulse wave form (DC)
  • RCD Form:
    • General (G – non-delayed),
    • Selective (S – time-delayed
  • Initial Polarity of the  Test Current: 0°, 180°
  • Voltage Range: 195V AC – 260V AC (50Hz,60Hz)
  • Accuracy of the Timing of the RCD: ± (10% of reading + 1 digits)
  • Resolution of the RCD Timing: 0.1ms

Voltage and Frequency

Measurement Range (V) / AC-DC Resolution (V) Accuracy
80 – 500 1 ±(2% of reading + 2digits)
Measurement Range (Hz) Resolution (Hz) Accuracy
--- --- ---
45 – 65 1 ±2Hz

Insulation Resistance

Terminal Voltage| Range| Resolution| Accuracy| Test Current| Short circuit current
---|---|---|---|---|---

125V(0%~+10%)

| 0.125~4.000 MΩ| 0.001MΩ| ±(2%+10)| 1mA @load125kΩ| ≤1mA
4.001~40.00 MΩ| 0.01MΩ| ±(2%+10)
40.01~400.0 MΩ| 0.1MΩ| ±(4%+5)
400.1~1000 MΩ| 1MΩ| ±(5%+5)

250V (0%~+10%)

| 0.250~4.000 MΩ| 0.001MΩ| ±(2%+10)| 1mA @load250kΩ| £1mA
4.001~40.00 MΩ| 0.01MΩ| ±(2%+10)
40.01~400.0 MΩ| 0.1MΩ| ±(3%+2)
400.1~1000 MΩ| 1MΩ| ±(3%+2)

500V(0%~+10%)

| 0.500~4.000 MΩ| 0.001MΩ| ±(2%+10)| 1mA @load500kΩ| ≤1mA
4.001~40.00 MΩ| 0.01MΩ| ±(2%+10)
40.01~400.0 MΩ| 0.1MΩ| ±(3%+2)
400.1~1000 MΩ| 1MΩ| ±(4%+5)

1000V (0%~+10%)

| 1.000~4.000 MΩ| 0.001MΩ| ±(3%+10)| 1mA @load1MΩ| ≤1mA
4.001~40.00 MΩ| 0.01MΩ| ±(2%+10)
40.01~400.0 MΩ| 0.1MΩ| ±(3%+2)
400.1~1000 MΩ| 1MΩ| ±(4%+5)

Low Ohm

Range Resolution Accuracy
0.00~99.99Ω 0.01Ω +(2%+30d)
100.0~999.9Ω 0.1Ω +(2%+6d)
1000~2000Ω

Earth resistance

Range Resolution Accuracy Max. open Circuit Voltage Overload Protection
0.000~2.000Ω 0.001Ω +(1.5%+30) 5.0V 250Vrms
2.00~20.00Ω 0.01Ω +(1.5%+3)
20.0 ~200.0Ω 0.1Ω
200 ~2000Ω +(1.5%+5)

Accessories

Carrying Case, Test Leads, Test Cut, Instruction Manual, Battery, Test Certificate.

Contact:
CEM INSTRUMENTS (INDIA) PVT. LTD.
32A, Ganesh Chandra Avenue, 4th Floor, Kolkata-700013
Tel: 033-22151376, 22159759
Email: info@cem-instruments.in
Web: www.cem-instruments.in

References

Read User Manual Online (PDF format)

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Download This Manual (PDF format)

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