LCD Digital Panel Meter PM-138

Specifications of Digital Panel Meter PM-138 

• Wave ranges: none

• Voltage / current type: Dry cell battery / 1 × 9 Volt

• Speaker: No low-frequency output

• Material: Printed circuit boards

• Model: Digital Panel Meter PM-138 – Conrad Electronic Voltcraft

• Form: Chassis (for integration into furniture/panel)

• Dimensions (W × H × D): 66 × 42 × 15 mm / 2.6 × 1.7 × 0.6 inch

Notes

Conrad Electronic, 3.5-digit Digital Panel Meter PM-138,

• With LCD display, automatic zero adjustment, and polarity indication

• Basic measuring range: 200 mV

• Display range: ±1999

• Measurement speed: 2–3 measurements per second

• Uses the dual-slope measurement method

• Equipped with an A/D converter circuit type ICL 7106, manufacturer INTERSIL (others possible)

• Operating voltage: 9 to 12 V DC

• Current consumption: approx. 1 mA

✅ In short: The PM-138 is a compact LCD digital panel meter with a 3.5-digit display, designed for integration into equipment, operating on a 9V battery or DC supply, and using a dual-slope A/D converter for accurate voltage measurement.