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Yokogawa UT35-A13501-A
Product Type: Compact Digital Indicator / Single-Loop Controller
Product Introduction:
The UT35-A13501-A is a compact, economical single-loop digital indicating controller from Yokogawa’s UT35 product line. It is designed for basic process variable monitoring and ON/OFF control in cost-sensitive applications. The model code specifies relay output, 4–20 mA input, and 100–240 VAC power.
Detailed content
Model Code Breakdown:
- UT35 — UT35 Series Digital Indicator, 1/8 DIN size
- A — Output type: Relay output (ON/OFF control)
- 13 — Input type: 4–20 mA DC (2-wire)
- 501 — Input range code: 4–20 mA (0–100% of F.S.)
- A — Power supply: 100–240 VAC, 50/60 Hz
Technical Specifications:
| Parameter | Value |
|---|---|
| Display | 5-digit 7-segment LED (14.2 mm), red |
| Input Signal | 4–20 mA DC (2-wire) |
| Input Impedance | 250 Ω |
| Control Output | Relay (SPDT, 250VAC/3A or 30VDC/3A) |
| Control Mode | ON/OFF (with hysteresis) |
| Setpoints | SP1 (main), SP2 (sub-selectable via front panel) |
| Accuracy | ±0.3% of F.S. ± 1 digit |
| Response Time | ≤ 0.5 seconds (display update) |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Power Consumption | ≤ 3 VA |
| Operating Temperature | 0°C to +50°C |
| Enclosure Rating | IP65 (front panel), NEMA 4X |
| Dimensions (W x H x D) | 48 x 96 x 110 mm (1/8 DIN) |
| Weight | Approximately 0.25 kg |
| Certifications | UL, CSA, CE, EAC |
Functional Features:
- Dual setpoint selection (SP1/SP2) via front-panel switch
- Adjustable hysteresis (0.1–100% of F.S.)
- Peak/Valley hold function
- Retransmission output: Optional 4–20 mA retransmission (model-dependent)
- Burnout detection: Configurable for upscale/downscale/hold
- Scale programming via front-panel keys
Structural Features:
- Ultra-compact 1/8 DIN design
- Snap-in panel mounting
- Screw-terminal connections (no tools required)
- Single row of 8 terminals for power, input, and output
Applicable Industries:
- Food and beverage
- HVAC
- Water treatment
- Light industrial process control
- OEM equipment
Installation Requirements:
- Panel cutout: 45 x 92 mm
- Use shielded cable for input in electrically noisy environments
- Relay output rated for resistive load only (3A max)
- Ensure ambient temperature does not exceed +50°C
Usage Precautions:
- Do not connect inductive loads directly to the relay output (use snubber circuit)
- Verify input signal polarity before power-on (4–20 mA: + to input+, – to input–)
- Do not exceed 3A relay contact rating
- Reset the unit after any power interruption to restore control
