FOR SALE – 1 pc. High Precision Resistance Decade Box — Р4830/1 (P4830/1)

High-quality precision resistance decade box designed for laboratory calibration, metrology, and precision DC resistance measurements.

The resistance decade box Р4830/1 is widely used in calibration laboratories, research institutes, and industrial testing for accurate DC resistance setting, substitution measurements, and verification of electrical measuring instruments.

⚙️ PRODUCT SPECIFICATIONS

Model: Р4830/1
Type: Precision resistance decade box / resistance standard
Application: Laboratory calibration, electronics testing, metrology

Total Resistance Range:
0.01 Ω … 1,111 Ω

Nominal Value of Resistance of One Decade, Ω:
10⁻², 10⁻¹, 1, 10, 10², 10³

Accuracy Class:
0.05 (±0.05 %)

Permissible Error:
±0.05 % of set value

Rated Voltage:
Up to 300 V DC

Operating Current:
According to selected resistance value

Insulation Resistance:
≥ 10⁹ Ω between terminals and case

Warm-Up Time:
Not required

Long-Term Stability:
High, suitable for precision laboratory measurements

🧮 DECADE STRUCTURE (DETAILED)

The Р4830/1 consists of six calibrated resistance decades, each selected by a mechanical switch:

1st Decade (×0.01 Ω)
Range: 0.01 – 0.1 Ω
Step: 0.01 Ω

2nd Decade (×0.1 Ω)
Range: 0.1 – 1 Ω
Step: 0.1 Ω

3rd Decade (×1 Ω)
Range: 1 – 10 Ω
Step: 1 Ω

4th Decade (×10 Ω)
Range: 10 – 100 Ω
Step: 10 Ω

5th Decade (×100 Ω)
Range: 100 – 1000 Ω
Step: 100 Ω

6th Decade (×1000 Ω)
Range: 1000 - 1000 Ω
Step: 1000 Ω

Maximum settable resistance: 10,111 Ω

🧪 MEASUREMENT & USAGE

Connection Terminals:
Precision screw terminals

Switching:
Mechanical decade switches with fixed calibrated steps

Measurement Type:
DC resistance measurements using substitution and bridge methods

Suitable for calibration of:
• Ohmmeters
• Wheatstone bridges
• Milliohmmeters
• Laboratory measuring instruments

📐 DIMENSIONS & WEIGHT

Dimensions: approx. 300 × 180 × 160 mm
Weight: approx. 3–4 kg

🌡️ OPERATING CONDITIONS

Temperature: +10 °C … +35 °C
Relative Humidity: ≤ 80 % at +25 °C

Designed for stable operation in laboratory conditions.

🚚 SHIPPING & HANDLING

Ships within 1–2 business days
Carefully packed to prevent damage
Worldwide shipping with tracking

Typical delivery time: 12–21 days (depends on destination)

🔁 RETURNS

Returns accepted only if the item is not as described.
Please contact the seller before returning.