Quadtech 1868A Megohmmeter
The Quadtech 1868A Megohmmeter is a resistance and current measurement instrument with an insulation resistance testing capacity of 10kΩ to 1PΩ at DC test voltages ranging from 10 to 1000V or 50 to 5000V. This device also provides a powerful charge current of up to 80mA to charge high capacitive devices, possesses a basic accuracy of ± 2% to 1TΩ and features five programmable limit sets. Program your Quadtech 1868A to your desired charge, delay and discharge settings and choose from one of four testing ranges or activate automatic ranging. Technicians can store four test sets in this device, which displays data via remote I/O, RES232 and IEEE-488.2 interfaces for remote control operation and communication with other devices. Rent the Quadtech 1868A to test insulation, capacitive components and connection resistance.
| Resistance Range | 10kΩ - 1PΩ (dependent on test voltage), 4 Ranges or Auto Range Range 1: 1pA to 10nA Range 2: 2nA to 100nA Range 3: 20nA to 10uA Range 4: 2uA to 1mA |
| Resistance Accuracy | For Rx <20G (Vx): ±(2% of reading +5cnt) For Rx >20G (Vx): ±(Vx/1pA) in ohms. Max reading: Vx/0.1pA Rx = Measured resistance in ohms Vx = Programmed voltage in volts |
| Voltage Range | 10 to 1000V DC in 1V steps, 1868A 50 to 5000V DC in 1V steps, 1868D |
| Voltage Accuracy | 2% of setting ±1V in uncalibrated mode |
| Source Resistance | 100Ω, 1kV (1868A); 3.3kΩ, 5kV (1868D) |
| Charge Current | 2/25/80mA (1868A); 2/10/18mA (1868D) |
| Discharge Resistance | 100kΩ |
| Current Measure | 1pA to 1mA |
| Measure Limits | 5 Programmable Limit Sets |
| Measurement Result | Resistance or Current |
| Test Speed | Trigger Mode: 40msec Continuous Mode: 90-4000msec (Depending on # to Average) |
- Measurement Range: 10kΩ to 1PΩ
- Programmable Test Voltage: 10V to 1kV (1868A), 50V to 5kV (1868D)
- Selectable Charge Current: to 80mA (1868A), to 18mA (1868D)
- Basic Accuracy: ± 2% to 1TΩ
- 5 programmable limit sets
- Leakage Current Measurement: Down to 1pA (± 2% basic accuracy)
- Programmable charge, delay and discharge times
- 4 ranges plus automatic ranging
- Automatic zeroing
- Contact check function
- Floating power supply (1868A) for measurements on grounded devices
- Internal storage of 4 tests (20 Steps each) plus additional storage with optional PCMCIA memory card
- Standard RS232, IEEE and remote I/O interfaces
- Graphic LCD with text, bar graph and X-Y graph displays
- Current or resistance display mode
- Production Testing of Insulation on Switches, Cables, Transformers, Motors and Other Devices
- Testing of Capacitive Components
- Insulation Properties of Natural and Synthetic Materials such as: Oils, Plastics, Rubber or Porcelains
- High Resistance Testing of Electrical Connections
SKU: QUAD-1868A