PT31 LCD Voltmeter
Voltage, Current & Frequency — Measured with Digital Precision
Accurate measurement of voltage, current, and frequency is essential for maintaining reliability, performance, and safety in modern control systems.
The PT30 Series from ENM, distributed by Amironic, delivers clear, real-time measurement and visualization in a compact, industrial-grade design.
Whether for generator panels, automation systems, or defense electronics, these meters transform data into actionable insight.
⚡ PT30 – Volt, Amp & Frequency Meter
The PT30 is a multifunction digital panel meter designed to display voltage, amperage, or frequency through a crisp 4-digit digital readout combined with a 40-segment bar graph for dynamic visualization
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Its starburst display area allows custom text or mode indication, while the front-sealed IP65 design ensures durability under harsh industrial or outdoor conditions.
Key Specifications:
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Input Range (DC): 0–600 V, 0–5 A (peak/RMS)
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Input Range (AC): 0–528 V, 0–5 A (peak/RMS), 0–400 Hz
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Power Supply: 12–24 VAC/VDC
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Analog Output: 4–20 mA (optional)
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Display: 4 large digits (0.47″), 40-bar graph, green backlight
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Operating Temperature: −10 °C to +60 °C
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Front Protection: IP65
Optional customization includes dual alarm setpoints, custom scales, and user-defined backlight color (red/green/white).
⚙️ TR11 & PT31 – LCD Voltmeter and Hour Meter Modules
For compact digital integration, the TR11 Series combines hour meter, counter, tachometer, and voltmeter functions in one miniature LCD module
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The PT31 model, in particular, serves as a precise low-power LCD voltmeter, ideal for embedded control systems, battery-powered devices, and portable measurement setups.
Highlights:
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Operating Voltage: 5–30 VAC/DC (hour/counter), 75–150 VAC/DC (voltmeter)
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Display: 0.205” (5.2 mm) LCD
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Accuracy: ±0.01%
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Timing Resolution: 0.1 hour
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Memory: CMOS EEPROM (retains data > 25 years without power)
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Operating Current: 250–300 µA
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Vibration Resistance: 10–75 Hz
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Temperature Range: −10 °C to +60 °C
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Maintenance alert versions available
These modules require no internal battery — data is retained using non-volatile EEPROM memory, ensuring long-term reliability even in the event of power loss.
🧭 Integration and Applications
Both PT30 and TR11/PT31 are built for industrial, automotive, and defense-grade systems, offering:
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Wide voltage and frequency compatibility
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Compact, panel-mount form factors
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Low power consumption
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Rugged, vibration-resistant construction
Common applications include:
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Generator and alternator control panels
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Power supply monitoring and diagnostics
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Laboratory and OEM instrumentation
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Electric vehicle and mobile system measurement
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Preventive maintenance and runtime logging
💡 Amironic Advantage
As a trusted representative of ENM and other global measurement manufacturers, Amironic provides full technical and commercial support for volt, amp, frequency, and multifunction LCD meters.
Our engineering team assists in model selection, cross-referencing, and customization — ensuring every project achieves optimal precision, reliability, and integration.
For datasheets, quotes, or design assistance, contact Amironic’s technical team — your partner for professional electronic measurement solutions.