CEM DT-6650 Multifunction Installation Tester
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 | 1Ω |
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 | 1Ω | +(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
Documents / Resources
 | CEM DT-6650 Multifunction Installation Tester [pdf] Instruction Manual DT-6650 Multifunction Installation Tester, DT-6650, Multifunction Installation Tester, Installation Tester, Tester |