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SD1050A04-2SN

The Yokogawa SD1050A04-2SN is a highly versatile, single-loop Smart Digital Indicator designed for panel mounting. Its primary function is to receive a standard process signal (like 4-20 mA), display the measured value on a large, easy-to-read LED screen, and provide additional alarm and transmission functions.

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Key Technical Specifications
Case Size: 96 x 96 mm (standard DIN square cutout)

Input Signal: 4 to 20 mA DC

Display:

Type: Large, high-brightness LED (Light Emitting Diode)

Color: Red (as specified by code '04')

Digits: Typically 4 or 5 digits

Outputs:

Alarm Relays: Two (2) independent relay contacts.

Contact Rating: Typically 250 V AC, 3 A (resistive load)

Type: Single Pole, Single Throw (SPST) – Form A (Normally Open) or Form B (Normally Closed), configurable.

Power Supply: 100 to 240 V AC, 50/60 Hz

Accuracy: Typically ±0.2% of reading ±1 digit

Sampling Period: 500 ms

Front Panel Protection: IP40 (for front bezel)

Summary
In summary, the Yokogawa SD1050A04-2SN is a:

96x96mm panel-mounted digital indicator.

Accepts a 4-20mA input signal.

Features a large red LED display.

Equipped with two configurable alarm relays.

Powered by 100-240V AC.