250 Series Specifications 250 Series Dimensions OPERATOR INTERFACE Display: 0.01-999,999; LCD 6-digit; 7-segment; 0.8” (20 mm) height; with LED backlight Display Resolution: 30,000d display divisions (dd); min of 0.25uV/division A/D Type and Conversion: 24-bit; Sigma-Delta A/D converter (8,000,000+ internal divisions) 20Hz with FIR filtering Keypad: 6-key; Silicon rubber Zero Range: Selectable from ±2% to ±20% of F.S. Units of Measure: kg, lb, g, t, oz, custom Remote Input: 1; momentary contact closure; For remote operation of any keypad key FUNCTION Power Requirements: 12-20 VDC or 4 AA batteries; On/Off Key Signal Connection: 4 or 6 lead (remote sense) plus shield Bridge Excitation: 5 VDC; Powers 4-350 ohm load cells Signal Input Range: 0.1-3.0 mV/V SERIAL PORT Serial Ports: Port 1: RS232 bi-directional serial port ENVIRONMENTAL Baud Rate: 2400, 4800 or 9600 bps with selectable protocol Operating Temperature: -10 to +50°C (14 to 122°F) Enclosure Material: ABS plastic housing; Silicon rubber keypad (Refer to 250SS Stainless and 250X Washdown data sheets for detailed information on these enclosure types. Sealing Rating: NEMA 12; IP51 Weight: 1 lbs OPTIONS & ACCESSORIES Mounting: Desktop; Panel (Remove Desk stand); Indicator stand (requires optional stand & bracket) Column Mount Swivel Bracket: Swivel brackets allow the indicator to be mounted to standard indicator columns & stands Desk Stand/Battery Holder: Required to column mount indicator; One included with indicator Link Communication Cable: IR (InfraRed) communication cable; For direct connection to standard computer RS232 port AC Power Supply Adapter: 100-240 VAC switching power supply; One included with indicator Documentation: Operator manual; One included with indicator Quick Start Manual; One included with indicator Technical Reference Manual Warranty: 2 Year Limited 84