Watlow MICRODIN - Manual (Page 22)

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Watlow MicroDIN Quick Start Guide
Primary Control Output (heating or cooling)
• Output update rate: 10 per second, 10Hz (maximum)
Internal Load Switching (nominal):
Switched dc (isolated) signal, 22 to 28VÎ (Vdc), current limited @ 30mA
Overload current and short circuit protection
External Load Switching (maximum):
• Open Collector 42VÎ (Vdc) @ 1A
Alarm Output
• Output update rate 2 per second (2Hz)
• Electromechanical relay, Form A, 2A @ 30VÎ (Vdc) or 240VÅ(Vac),
• Alarm output can be latching or non-latching, and process or deviation with sepa-
rate high and low values. Alarm silencing (inhibit) on power-up.
Accuracy
• Calibration accuracy and sensor conformity: ±0.1% of span ±1°C @ 25°C ±3°C (77°F
±5°F ) ambient, and rated line voltage ±10% with the following exceptions:
Type T; 0.12% of span for -200°C to -50°C
Types R and S; 0.15% of span for 0°C to 100°C
Type B; 0.24% of span for 870°C to 1700°C
• Accuracy span: Less than or equal to operating ranges, 1000°F/540°C minimum.
• Temperature stability: ±0.2 °C/°C (±0.2 °F/°F) rise in ambient maximum for thermo-
couples, ±0.05 °C/°C (±0.05 °F/°F) rise in ambient maximum for RTD sensors
• Voltage stability: ±0.01% of span per percent of rated line voltage
Safety Agency Approvals
• UL/C-UL 508, File # E102269
Industrial Control Equipment
• CE to EN 61010
Electromagnetic Compatibility and Immunity
• Complies with EN 50081, EN 50082
Terminals
• Touch-safe set screw type, accepts 26 to 14 gauge wire
Power
• 24-28V‡(Vac/Vdc), -15%, +10% [20.4 to 30.8V‡(Vac/Vdc)]; 50/60Hz ±5% for VÅ(Vac)
• 5VA typical power consumption
• Data retention upon power failure via nonvolatile memory
• Sensor input isolation to switched dc output and communication circuitry
500VÅ(Vac) dielectric
Operating Environment
• 32 to 149°F (0 to 65°C)
• 0 to 90% RH, non-condensing
• Storage temperature: -40 to 158°F (-40 to 70°C)
Dimensions
• Width x Height x Depth
1.64" x 4.65" x 5.19" DIN rail mount
(42mm x 118mm x 132mm)
1.64" x 4.65" x 5.06" Chassis mount
(42mm x 118mm 129mm)
• Mounts on DIN rail per DIN EN 50022 (35mm x 7.5mm)
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These specifications are subject to change without prior notice.