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UM33A-020-11

The Yokogawa UM33A-020-11 is a single-channel Digital Panel Indicator from the UM33A series, specifically designed for temperature measurement applications. Its primary function is to accept a direct input signal from a thermocouple (TC) or RTD (Resistance Temperature Detector) temperature sensor and accurately display the measured temperature value on a high-visibility, 5-digit LED display.

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Key Specifications
Category Specification Details
Model UM33A-020-11
Input Type: Analog DC Current
Nominal Range: 0 to 20 mA DC
Effective Range: Can be configured for sub-ranges like 4-20 mA, 0-10 mA, etc.
Input Impedance: 50 Ω (internal shunt resistor)
Display Type: 5-digit, red LED
Digit Height: 0.56 inch (14.2 mm)
Update Rate: Approximately 4 times per second
Decimal Point: Position is user-selectable
Scaling: Full-scale value and decimal point are user-configurable to display engineering units.
General Performance Accuracy: ±0.1% of reading ±1 digit
Temperature Effect: ±0.01% of reading per °C
Common Mode Rejection Ratio (CMRR): 120 dB min.
Normal Mode Rejection Ratio (NMRR): 60 dB min. (at 50/60 Hz)
Power Supply Rated Voltage: 24 V DC ±10%
Power Consumption: Approx. 2.5 W (for DC model)
Note: The -11 suffix typically denotes a DC-powered model. Always verify power requirements.
Environmental Conditions Operating Temperature: 0 to +50 °C (32 to 122 °F)
Storage Temperature: -20 to +60 °C (-4 to +140 °F)
Ambient Humidity: 5 to 95% RH (non-condensing)
Construction & Design Panel Cutout: 92mm (H) x 45mm (W) / 3.62" (H) x 1.77" (W)
Mounting: Front-panel mounting with securing clips
Case Material: Plastic (ABS resin)
Weight: Approx. 200 g (0.44 lbs)
Safety & Compliance Standards: Complies with EN 61010-1 (Safety), EN 61326-1 (EMC).