The Megger DLRO10HD low-resistance ohmmeter is a ductor that augments Megger's DLRO10 and 10X range of low resistance ohmmeters, combines ultimate simplicity of operation with a rugged IP65 case designed for stable ground and bench operation. The DLRO is powered from either its rechargeable battery or line power making it suitable for continuous testing in production line/repetitive use environments. Rotary switch controls are simple and easy to operate in all weather conditions and with gloved hands. A large, clear, backlit LCD display is easy to read from a distance.
The Megger DLRO10HD ductors provide significantly enhanced compliance and is capable of delivering 10 A into measurements up to 250 mΩ and 1 A into measurements up to 2.5 Ω. The duration of each test may be up to 60 seconds. This ductor is rated CAT III 300 V. A range of test leads is available to suit the application. The Megger DLRO10HD ductor provides five test modes each of which is selected through a simple rotary control.
Features
- High or low output power selection for condition diagnosis
- Rechargeable battery or line power supply, continuous operation, even with dead battery
- 10 A for 60 seconds, less time waiting to cool, great for charging inductance
- High input protection to 600 V, inadvertent connection to line or UPS voltage will not blow a fuse
- Heavy duty case: IP 65 lid closed, IP54 operational (battery operation only)
- Rotary switch selects one of five test modes, including auto start on connection, giving ease of use
Specifications
| Temperature Coefficient |
< 0.01% per º C, from 5º C to 40º C |
| Maximum Altitude |
2000m (6562 ft) to full safety specifications |
| Display size/type |
Main 5 digit + 2 x 5 digit secondary displays |
| Battery type |
6 V, 7Ah sealed lead acid |
| Voltage input range |
90 - 264 V, 50-60 Hz |
| Charge time |
8 hours |
| Backlight |
LED backlight |
| Battery life |
1000 Auto (3 sec) tests |
| Auto power down |
300s |
| Mode Selection |
Rotary switch |
| Range selection |
Rotary switch |
| Weight |
6.7 kg |
| Case dimensions |
L315mm x W285mm x H181mm |
| Pouch for test leads |
Yes (lid mounted) |
| Test leads |
DH4 lead set included |
| IP rating |
IP65 case closed, IP54 battery operation |
| Safety rating |
In accordance with IEC61010-1, CATIII 300 V when used with DH7 leads |
| Operating temperature and humidity |
-10° C to +50° C (14° F to 122° F) <90% RH |
| Reference conditions |
20° C ±3° C |
| Storage temperature and humidity |
-25° C to +60° C, <90% RH |
Applications
- Switch and contact breaker resistance
- Busbar and cable joints
- Aircraft frame bonds and static control circuits
- Integrity of welded joints
- Inter-cell connections on battery systems up to 600 V peak
- Quality control of resistive components
- Transformer and motor winding resistance
- Rail and pipe bonds
- Metal alloys, wields and fuse resistance
- Graphite electrodes and other composites
- Wire and cable resistance
- Transmitter aerial and lightning conductor bonding
Standards
- Safety
- 2000 m (6562 ft) to full safety specifications
- EMC
- In accordance with IEC61010-1 600 V Category III - only when DH6 leads are used
- In accordance with IEC61326-1