RN 5306

picto fleche Onsite pyrotechnical safety ohmmeter

RN 5306 portable rugged safety ohmmeter is dedicated to the control of electro-pyrotechnical devices. It provides all necessary safety conditions for such measurements where user safety is at stake.

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RN 5306 portable rugged safety ohmmeter is dedicated to the control of electro-pyrotechnical devices. It provides all necessary safety conditions for such measurements where user safety is at stake.

Several ranges are available, from 10 mΩ (resolution) to 2 MΩ using 4-wire or 2-wire configuration with automatic range adjustment.

Key-features that guarantee safe use in pyrotechnical environment:

  • Less than 1 V at terminals in open circuit
  • In case of internal fault, current is always limited to less than 5 mA when a single fault occurs, and less than 10 mA when two fault occur simultaneously.
  • Before measurement, the maximum current is kept below 0.5 mA

IP 65, robust, light and with a high level of autonomy (400 hours), RN 5306 is perfect for field measurements.

Yearly calibration is highly recommended in order to control the safety functions of your equipment.

Ohmmeter function

Measurement principleRangeResolutionAccuracy (1)Acceptable line resistanceMax. measuring currentMax. voltage
4 wires20 Ω10 mΩ0.3% + 10 mΩ50 Ω per wire0.5 mA≤ 1 V
200 Ω100 mΩ0.3% + 100 mΩ0.5 mA
2 kΩ1 Ω0.3% + 1 Ω0.5 mA
2 wires20 Ω10 mΩ0.3% + 10 mΩTaring: 10 Ω for both wires0.5 mA≤  1 V
200 Ω100 mΩ0.3% + 100 mΩ0.5 mA
2 kΩ1 Ω0.3% + 1 Ω0.5 mA
20 kΩ10 Ω0.3% + 10 Ω50 µA
200 kΩ100 Ω0.3% + 100 Ω5 µA
2 MΩ1 kΩ0.3% + 1 kΩ0.5 µA

(1) ± (% reading + number of digits) at 23°C ±1°C for one year

Further features

Sampling time2.5 measurements / s
Balance settling time≤ 2 s
Measurement safetyIn case of overranging: 3 last digits switched off
In case of breakdown of a wire or mistaken connection: Display of negative polarity
Temperature coefficient≤ (0.01% RDG + 0.1 d)/°C

General specifications

Size196 x 87 x 41 mm
Weight380 g
DisplayLCD display, 2,000 points, 3 ½ digits, 13 mm high
BatteryType: 9 V standard (6 LF 22)
Battery life: ≥ 400 h

Environmental specifications

Reference range23°C ±1°C (45 to 75% w/o condensing)
Operating reference range5 to 55°C (RH ≤ 95% at 40°C)
Limit operating range-10°C to +55°C (RH ≤ 95% at 40°C)
Storage temperature limits-30°C to +60°C
IP protectionIP65

Safety specifications

Electrical safety- For position 0 (stop) and T (test), measurement pins are short-circuited
- Positions T (test) check the maximum current measurement (≤ 0.5 mA)
- In case of internal failure, current is limited to less than 5mA (for only one failure) or less than 10mA (for two simultaneous failures)

Instrument:

RN5306                 Pyrotechnical ohmmeter

Delivered in standard:

  • Protection rubber case
  • Pair of measuring cables

 

ProductDescriptionReleaseType
RN 5306

Instruction manual

pdf