IET Labs off ers a choice of GenRad Megohmmeters to fit most high-resistance measurement needs.
Although these two instruments are similar in appearance and accuracy, their operating ranges differ to match diff ering needs in the laboratory and production area.
The IET Labs 1863 and 1864 Megohmmeters are manufactured using the same design and construction as the original GenRad megohmmeters.
Features:
• Easy to use
• Rugged portable carrying case
• Charge current up to 5 mA
• High-accuracy: 0.01% (100 ppm)
• 200 test voltages: 10 Vdc to 1090 Vdc
• 50 kΩ to 200 TΩ (2 x 1014)
• Analog output
• 3 % basic accuracy
• Simple opera
Uses:
• Insulation resistance measurements for wire and cable
• Insulation resistance for capacitors
• A wide variety of insulation resistance measurements for components and devices
• Indicated for use in various service bulletins for aircraft fuel pump inspection
The 1864 Megohmmeter is the choice for more demanding applications. It is the more fl exible of the two megohmmeters. The test voltage can be set to any value from 10 Vdc to 109 Vdc in 1 V steps and 10 Vdc steps from 100 Vdc to 1090 Vdc. The 1864 can be set to common test voltages for various capacitors. The 1864 can measure resistances from 50 kΩ to 200 TΩ (2 x 1014 Ω).
The instruments are easy to use with directreading meter indication and lighted range switch that shows the multiplier for each range and voltage. The maximum current possible at the terminals is limited to 5 mA. A danger light near the terminals warns when voltage is present.
Stable power supplies and feedback voltmeter circuit minimizes drift and time wasting adjustments. Guard and ground terminals permit measurements of grounded or ungrounded two or three terminal devices.
The instruments are supplied in a convenient, portable, flip-tilt case that is a stand for the meter when in use and protects the megohmmeter during transit and storage.
Resistance Accuracy:
1864: (minimum reading is 0.5):
Range 1-5: ±2(meter reading+1)% (For example, if meter reading is 0.5, accuracy is ±2(0.5+1)% = ±3%
Range 6: ±(2(meter reading+1)%+2%)
Range 7: ±(2(meter reading+1)%+3%)
Range 8: ±(2(meter reading+1)%+5%)
Meter Display:
Analog Meter
Caution High Voltage Indicator
Voltage Accuracy (across unknown): ± 2%
Short-Circuit Current: Approximately 5 mA
Input Terminals:
Front Panel Mounted:
(+) Unknown (Red)
(-) Unknown (Red)
Guard (Red)
Ground (Gold)
Power: 100 - 125 or 200 - 250 V, Switch Selectable 50 - 400Hz 13W
Fuse:
For 90 to 240 V operation: T 250mA, 250 Vac, 5 x 20 mm fuse
Dimensions
16.8 x 25.4 x 17.1 cm (6.63 x 10 x 6.75 in.)
Weight
4.4 kg (9.5 lbs) - Net 7.0 kg (14 lbs) - Shipping
Environmental: Operating: 0 °C to + 40 °C, Stated Accuracy, < 70% RH
Storage: -20 °C to + 60 °C, < 80% RH
Voltage Setting | Rmin(Full Scale left end) | Rmax(right end) | Useful Ranges | |
10 Vdc to 50 Vdc | 50 kΩ 5 | 500 GΩ | 2 TΩ 7* | 7* |
50 Vdc to 100 Vdc | 200 kΩ | 5 TΩ | 20 TΩ | 8 |
100 Vdc to 500 Vdc | 500 kΩ | 5 TΩ | 20 TΩ | 7* |
500 Vdc to 1090 Vdc | 5 MΩ | 50 TΩ | 200 TΩ | 8 |
*Recommended Limit
ORDERING INFORMATION
1864-9700 1864 Megohmmeter
Includes: Instruction Manual
Calibration Certifi cate Traceable to SI
Available Accessories:
630018 Lead Set
630018/S Shielded Lead Set
1863-11 Resistivity Test Fixture
