• Provides 3½ Digit Display Calibrated in Engineering Units (°F, °C, %, PSI, etc.)
  Proportional to DC Input
• Unlimited Choice of Input Ranges via Interchangeable Range Cards
• 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 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.

All DIS instruments are NEMA-4 splashproof. ZERO and SPAN controls are accessible by removing a gasketed front access panel. The display 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 voltage, current and process indication.

INPUT RANGE Voltage Current Shunt Value 0/.2 V 0/.5 V 0/1 V 0/2 V 1/5 V 0/5 V 0/10 V 0/20 V 0/50 V 0/100 V 0/200 V 0/1 mA 0/2 mA 0/5 mA 0/10 mA 4/20 mA 0/20 mA 0/50 mA 0/100 mA 1000 Ohms 500 Ohms 200 Ohms 100 Ohms 61.9 Ohms 50 Ohms 20 Ohms 10 Ohms INPUT IMPEDANCE Voltage 200 kilohms for spans 1 V and above 125 kilohms for 500 mV span 50 kilohms for 200 mV span Current R=1 V/span. See input shunt values above. 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 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

Power AC L1 Power AC L2 Input - Input +