Sensing method: Through-beam type (with slot).
Sensing distance: 3.6 mm (slot width).
Output type: NPN output.
Output configuration: Dark-ON.
Photomicrosensor with light,
modulation for reduced external,
light interference and a,
connector for easy maintenance.
Built-in connectors.
Select from four easy-to-use shapes for efficient space,
utilization.
Connectors with locks for safety against vibration D4A-A20
Convenient mounting method using M3 screws.
Wide operating voltage range: 5 to 24 VDC. Case color: Black.
Control output: Voltage output (for driving SSR).
Control mode *1: Standard or heating/cooling.
No. of auxiliary outputs: 1.
Detection of heater burnout, SSR failure, and heater overcurrent: --.
No. of event inputs: --.
Transfer output *2: --.
Communi cations: RS-232C.
Previous model: Thermocouple input, --;
Resistance thermometer input, --.
New 48 x 24-mm Basic Temperature,
Controller with Enhanced Functions and,
Performance. Improved Indication Accuracy,
and Preventive Maintenance Function.
Indication Accuracy.
Thermocouple input: ±0.3% of PV (previous models: ±0.5%),
Pt input: ±0.2% of PV (previous models: ±0.5%),
Analog input: ±0.2% FS (previous models: ±0.5%),
Models are available with screw terminal blocks or screwless,
clamp terminal blocks.
A PV/SV-status display function can be set to automatically alternate,
between displaying the status of the Temperature Controller (auto/
manual, RUN/STOP, and alarms) and the PV or SV.
Preventive maintenance for relays in the Temperature,
Controller using a Control Output ON/OFF Counter.
Switch the PV display between three colors.
Compatible with Support Software (CX-Thermo version 4.2 or higher).
Eleven-segment displays.
Models are available with one or two alarm outputs. Long-distance Photoelectric Sensor.
That Supports AC/DC Power Supplies.
Long sensing distance that is approximately 8,
times that of our conventional model (for the,
Through-beam and Diffuse-reflective models).
(Through-beam: 40 m, Retro-reflective: 7 m, and,
Diffuse-reflective: 2.5 m.) .
Improved visibility:
A red LED that makes the spot visible.
Large indicators that can be seen even from a,
distance.
Improved operability.
(Enlarged sensitivity adjuster and operation selector)
Freely selectable power supply input (24 to 240 VDC, 24 to 240 VAC).
(Additional types added to the DC type lineup.)
Models with infrared LEDs are also available.
D4A-A20 Operation manual/Instructions/Model selection sample download link: /searchDownload.html?Search=D4A-A20&select=5