Hardy HI 2151/30WC Single-Scale Controller - Manual (Page 25)

Chapter 2 - Specifications
2-5
5 pounds (2.27 Kilograms)
• Enclosure Rating
Fiberglass - NEMA 4
Approvals • UL Certification
• CSA Certification
• Factory Mutual (FM) Class I, II, III Div. 2 Groups A-G
• CE Approval
• NTEP Approval
• MC (Measurement Canada) Approval
Serial
Communications • Baud Rates:600, 1200, 2400, 4800, 9600, 19200
• RS 232 (-A1):Full Duplex
• RS 422 (-A2): Full Duplex, 4 wire
• RS 485 (-A3): Half Duplex, 2 wire
Bi-Directional
Communications 1. RS-232C SPECIFICATIONS
SPECIFICATION DESCRIPTION
High Level Output +11V at 5 mA
Low Level Output -11V at -5 mA
SPECIFICATION DESCRIPTION
High Level Input +4V to +15V
Low Level Input +1.6V to -15V (Schmit trigger input
disallows logic changes with voltages
between these ranges.)
Slew Rate 15V per microsecond maximum
Input Impedance 20K ohms
GND SIGNAL GND
Update Time 10 updates/sec.
Serial port connections are made to J3, located on the rear panel,
through the mating plug P3.
2. RS-422/485 Specifications
Interface specifications per EIA (Electronic Industries Association)
Standards RS-422 and RS-485.
Optional Equipment
Analog Output (-B1) • Resolution
16,000 counts
• Linearity
0.01% (with 1 average selected)