Overview
The Red Lion Controls APLID400 is a rugged DC current panel meter from the Apollo series, engineered for precise measurement and display of current values in industrial control and monitoring applications. This 3-1/2-digit digital meter provides clear, easy-to-read data for process monitoring, troubleshooting, and system diagnostics in demanding electrical environments.
Key Features
- 3-1/2-digit bipolar display with 0.56-inch LED digits for visibility from a distance
- Measures DC current with full-scale input of 199.9 mVDC
- Removable terminal blocks on rear for quick installation and wiring
- Decimal point positioning selectable via DIP switch
- High isolation rating (2300 Vrms for 1 min. between input and supply)
- Compact flush-mount panel design for industrial control cabinets
Technical Specifications
- Part Number: APLID400
- Manufacturer: Red Lion Controls
- Series: Apollo DC Current Meter
- Display Type: 3-1/2-digit LED digital display
- LED Height: 0.56 inches
- Input Range: 0–199.9 mVDC (full scale)
- Display Reading: 1999 (maximum)
- Input Isolation: 2300 Vrms for 1 minute (input to supply)
- Decimal Point: Selectable via DIP switch before 1st, 2nd, or 3rd least significant digit
- Bipolar Display: Yes — minus sign displayed for negative current
- Terminal Blocks: Removable, rear-mounted for easy wiring
- Panel Clearance Required: Minimum 2.1" H × 5.5" W behind panel for mounting clip installation
- Supply Voltage: 115 VAC (APLID400) or 230 VAC (APLID410)
Typical Applications
- Industrial current monitoring in machinery and process control systems
- DC power distribution monitoring and diagnostics
- Motor current measurement and load analysis
- Battery charging system monitoring
- Renewable energy system monitoring (solar, wind)
- Factory automation and panel-mount instrumentation
Compatibility & Replacements
Compatible With
- Industrial control cabinets requiring panel-mount instrumentation
- DC current measurement applications (0–199.9 mVDC)
- Systems with removable terminal block wiring
- High-isolation, galvanically separated measurement requirements
Replaces / Drop-In Replacement For
- Older Red Lion Apollo APLID meter models (verify supply voltage: 115 VAC or 230 VAC)
- Discontinued analog or mechanical current meters in panel applications
Works With
- Standard industrial DC current measurement circuits
- Shunt resistor networks for higher current ranges (accessory shunts available)
- DIP switch configuration for decimal point positioning
- Any control system requiring galvanically isolated current monitoring feedback
