Measurement of the resistance of grounding elements, metal connections, continuity of protective conductors using a two-, three- or four-wire method.
Measurement of soil resistivity.
Measuring the resistance of a single grounding conductor in a multi-element grounding system without disconnecting it using measuring clamps (KTI-20/1 or KTI-20/2).
Measurement of the resistance of grounding elements without the use of auxiliary electrodes (GOST R 50571.16) using two clamps (KP-20/1 and KTI-20/1 or KP-20/1 and KTI-20/2).
AC current measurement without breaking the circuit.
Measurement of AC voltage (noise).
Specifications:
| 1. Earth resistance measurement | |||
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Resistance measurement ranges |
Permissible value of resistance in connection circuits, no more |
Limits of permissible basic error of resistance measurements for the four-wire measurement method |
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current Т1 - Т2 |
potential P1 - P2 |
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1 to 999 mΩ |
30 ohm |
40 kOhm |
± (0.03×R + 3 units) |
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0.01 to 9.99 ohms |
1 kOhm |
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0.1 to 99.9 ohms |
10 kOhm |
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from 1 to 999 ohm |
40 kOhm |
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| 1 to 9.99 kOhm | |||
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Maximum interference voltage amplitude for resistances |
up to 999 mΩ |
no more than 12 V |
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1.00 ohm to 9.99 k ohm |
no more than 24 V |
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Measuring voltage and current |
no more than 42 V and 250 mA, frequency 128 Hz |
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2. Earth resistance measurement with one clamp |
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Resistance measurement ranges |
Permissible value of resistance in connection circuits, no more |
Limits of permissible basic absolute error of resistance measurements with one clamp for a four-wire measurement method |
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current T1 - T2
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potential P1 - P2
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1 to 999 mΩ |
30 ohm |
40 kOhm |
±( 0.05×R+ R2 ∕ (300×Rtot)+3 mu) |
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0.01 to 9.99 ohms |
1 kOhm |
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0.1 to 99.9 ohms |
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from 1 to 999 ohm |
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0.01 to 9.99 kΩ |
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Measuring tongs grip diameter: KTI-20/1 KTI-20/2
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50 mm 80 mm
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3. Earth resistance measurement with two clamps |
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Resistance measurement ranges |
Limits of permissible basic absolute error of resistance measurements |
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0.03 to 9.99 ohm |
± (0.1×R + 3 units) |
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10.0 to 99.9 ohms |
± (0.15×R + 3 units) |
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4. Measurement of the amplitude value of AC voltage 50 Hz |
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Measurement range |
from 1 to 300 V |
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Limits of permissible basic absolute measurement error |
± (0.05×U + 3 units) |
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5. Measurement of AC current with a frequency of 50 Hz using measuring clamps |
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Measurement range |
from 1 to 250mA 0.25 to 2.50 A
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Limits of permissible basic absolute measurement error |
± (0.05×I + 3 units) |
Additionally:
Power supply - Ni-MH battery 6 V, 2000 mAh or 5 AA batteries;
Operating temperature range - from -15 ºС to +50 ºС;
Degree of protection of the body - IP54;
Overvoltage category - CAT IV 300 V.
The company "Radio-Service" offers a wide range of electrical measuring instruments for route-finding equipment of various prices, used in various fields of activity. The good quality and affordable price of our products have allowed us to take a strong position in the Russian market.
The instruments we produce include:
- megaohmmeters;
- ground resistance meters;
- loop resistance meters;
- RCD parameters meters;
- voltammeters;
- route finders;
- marker detectors.
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