YOKOGAWA UM33A

YOKOGAWA UM33A

Overview

The YOKOGAWA UM33A series stands as a high-precision 1/8 DIN digital alarm indicator for industrial process monitoring, and the UM33A-000-10/DC is a widely deployed DC-powered base variant favored by chemical, energy, food processing and machinery manufacturers world wide YOKOGAWA Electric Corporation. Unlike AC-powered UM33A-000-10 units, UM33A-000-10/DC adopts 24 VDC universal industrial power input, perfectly matching PLC, sensor and distributed control system (DCS) low-voltage cabinets without extra transformers. Every UM33A unit integrates universal sensor input, multi-point alarm outputs, built-in signal correction and clear color LCD display, delivering stable real-time PV value readout for temperature, pressure, flow and voltage/current signals.

UM33A-000-10/DC Full Model Code Explanation

Split the complete part number UM33A-000-10/DC segment by segment for ordering reference:

1. UM33A: Core series name, digital indicator with standard retransmission output, 2 digital inputs (DI), 3 relay digital outputs (DO)
2. -0: Basic type code = Standard base hardware without extra extended relays
3. 0: Function option code = No additional DO relay, no RS485 Modbus communication module
4. -1: Network code = No open industrial bus interfaces (CC-Link, Profibus excluded)
5. 0: Language & housing code = English default display, light gray ABS housing
6. /DC: Critical suffix option = 24 VAC/DC universal power supply (standard UM33A-000-10 uses 100–240 VAC mains power only)

Core Technical Parameters of UM33A-000-10/DC

1. Power Specification: Rated 24 V DC ±10%, power consumption ≤2.5W; operating voltage range 21.6–26.4 V DC, low heat emission for compact cabinet installation
2. Universal Input Channels: Single isolated universal input supporting thermocouple (K, J, T, E, R, S, B), RTD, DC voltage (-10–100mV, 0–10V) and DC current (0–20mA); measurement accuracy ±0.1% FS ±1 digit above 0°C for thermocouple signalsweb-material3.yokogawa.com
3. Sampling Cycle: Three selectable speeds 50ms / 100ms / 200ms for fast-response pressure monitoring or stable temperature measurement
4. Alarm Capacity: 8 configurable alarm logics with up to 9 physical output points; supports high/low PV limit, rate-of-change, self-diagnosis alarms, latch reset and hysteresis delay functions
5. Display Module: 5-digit 14-segment color LCD, scrolling parameter text, multi-language navigation prompts (English, German, French, Spanish)
6. Mechanical Dimension: Panel cutout 92mm(H) × 45mm(W), depth 65mm; front clip mounting, total weight ~200g, ABS flame-retardant casing
7. Environmental Rating: Operating temp 0–50°C, storage -20–60°C, humidity 5–95% RH non-condensing; NMRR ≥60dB at 50/60Hz, complies EN 61010-1 safety & EN 61326-1 EMC standards
8. Signal Correction Tools: Built-in PV bias, polygonal line approximation and polygonal bias to offset sensor drift for long-term precise readingsYokogawa Electric Corporation

Industrial Applications for UM33A-000-10/DC

UM33A-000-10/DC fits low-voltage control cabinets in oil & gas pipelines, pharmaceutical fermentation tanks, HVAC equipment, water treatment skids and test bench monitoring. The DC power design eliminates AC power noise interference, making UM33A-000-10/DC ideal for mobile process units and remote field control boxes. Users upgrading old analog meters frequently choose UM33A series for plug-and-play sensor compatibility and straightforward parameter setup via physical navigation keys.

Product Advantages

All UM33A models feature 3-year factory warranty, RoHS compliance and user-customizable default parameter presets. The UM33A-000-10/DC base configuration covers most basic monitoring demands, while clients requiring data transmission can upgrade to UM33A-010-10/DC with RS485 Modbus RTU for PC-Link and DCS data exchange.