• Provides 3½ Digit Display Calibrated in Engineering Units (°F, °C, %, PSI, etc.)
  Proportional to DC Input
• 24 VDC Power Supply for Two-Wire Transmitters
• Fits Standard 1/8 DIN Cutout (Oversize Bezel)
• Mount, Wire and Calibrate from Front
• Rated NEMA-4, Splashproof when Properly Installed
• 5 Year Warranty

The DIS471-24 provides a display proportional to a DC input signal. All Wilkerson products are designed with RFI filters and lightning protection to reduce susceptibility to electrical noise and damage by lightning. The digital display utilizes an auto-zero dual-slope integrating A/D converter for accuracy and stability. The instrument contains a 24 VDC transmitter power supply specifically designed for use with two-wire process transmitters.

All DIS instruments are gasketed and, when properly installed, are NEMA-4 splashproof.  ZERO and SPAN controls are accessible by removing a gasketed front access panel. The display’s controls are wide-ranging so that it can be calibrated to display engineering units. Decimal point selection is made with a switch accessible from the rear.

A complete set of engineering unit labels is sent with each DIS. Terminations are made to a screw terminal connector on the rear of the case.

TYPICAL APPLICATIONS
DC process indication, monitoring, two-wire excitation.

INPUT RANGE 4/20 mA INPUT IMPEDANCE 61.9 ohms ISOLATION Input-to-Line Breakdown Voltage 1500 VAC rms ACCURACY ±0.05% of span plus 1 digit LINEARITY ±1 digit COMMON MODE REJECTION 120 dB, DC to 60 Hz DIS471-24 24 V output ±5%, 30 mA max

DISPLAY Digit Size .56" LED, 3½ digits, ±1999 Decimal Point ±1.9.9.9 Control Range Zero ±1999, Span min span 10; max span 1999 Update Rate 3/sec Reverse Display Rear-panel jumper selectable. Reads downscale with increasing input. OPERATING TEMPERATURE 14°F to 140°F/-10°C to 60°C TEMPERATURE STABILITY ±0.02% of span/°C max POWER 115 VAC ±10%, 50 or 60 Hz (4 W max) 230 VAC ±10%, 50 or 60 Hz (4 W max)

Terminal 1 Terminal 2 Terminal 3 Terminal 4 Terminal 5 Terminal 6

Power AC L1 Power AC L2 Input - Input + Transmitter Power - Transmitter Power +