Description
Sanwa PDR4000 Portable Digital Earth Tester
The Sanwa PDR4000 is a rugged, handheld digital earth tester designed to accurately measure soil resistance and interference voltage in electrical grounding systems. Housed in a compact, impact‑resistant case, it features manual selection of three resistance ranges (40 Ω, 400 Ω, 4000 Ω) and an AC voltage measurement function up to 400 V, enabling comprehensive site diagnostics.
Measurements employ both the 3‑pole potential drop method using two auxiliary electrodes inserted 5–10 m apart and the 2‑pole method for systems with known low‑resistance earth paths. The instrument’s LCD display (max. 4000 counts) provides clear readouts, while onboard features such as data‑hold, relative‑value zero adjustment (to null test‑lead resistance), and a backlight enhance usability in varied environments. Auto power‑off conserves battery life, and a low‑battery indicator alerts users when to replace the six R6P cells.
Built to IEC 61010 safety standards (CAT II 400 V/CAT III 300 V) and rated IP30, the PDR4000 withstands indoor field conditions up to 40 °C and 85 % RH. Its lightweight design (163 × 102 × 50 mm; 440 g incl. batteries) and supplied carrying case make it ideal for electricians, maintenance teams, and field technicians requiring dependable earth resistance measurements.
Features:
- Safety design compliant to IEC 61010.
- 3‑pole and 2‑pole earth resistance measurement methods.
- High‑portability carrying case.
- Backlight function for low‑light conditions.
Specifications:
| Specification | Details |
|---|---|
| AC detection method: | Average value (AC coupling) |
| Display: | Maximum 4000 counts |
| Sampling rate: | 2 times/sec. |
| Overload indication: | “OL” on ACV; “OL” or “– – – –” on Ω |
| Range selection: | Manual |
| Low battery indication: | Symbol at 7.8 V; “ ” at 6.0 V |
| Operating conditions: | Indoor up to 2000 m, pollution degree II |
| Operating temperature/humidity: | 0 – 40 °C, ≤85 % RH (no condensation) |
| Storage temperature/humidity: | –20 – 60 °C, ≤90 % RH (batteries removed) |
| Power supply: | R6P (1.5 V) × 6 pcs |
| Auto power‑off: | Off 10 min after last operation |
| Power consumption: | 18 VA (measurement at 5000 V/≈1.8 MΩ) |
| Measurement capacity: | Up to 4000 readings (3‑pole: 10 Ω, 5 s continuous, 25 s interval) |
| Dimensions & mass: | 163 (H) × 102 (W) × 50 (D) mm; 440 g (incl. batteries) |
| IP rate: | IP30 |
| Safety standards: | IEC 61010‑1 CAT II 400 V / CAT III 300 V; IEC 61557‑1, ‑5; EMC, RoHS compliant |
| Standard accessories included: | TL‑67 test lead set; 2× CL‑ER4000 electrodes; C‑PDR4000 carrying case; manual; 6 batteries |
Applications:
- Earth Resistance Measurement.
- Measurement in CAT II 400 V / CAT III 300 V Environments.
- On-Site Grounding System Testing.
- 2-Pole and 3-Pole Method Applications.
- Inspection and Maintenance of Electrical Installations.
Package Contents:
- 1x Test lead set (TL‑67): Black (5 m), Blue (10 m), Red (15 m)
- 2x Auxiliary earth electrode (CL‑ER4000)
- 1x Carrying case (C‑PDR4000)
- 1x Instruction manual
- 6x Batteries (R6P 1.5 V)
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