I. Technical Specifications (Chinese Version)

1. Power Supply

Power: 24 V DC (18–36 V, DC)

Power Consumption: ≤ 8 W (24 V DC)

2. Measurement Input (Single Channel)

Sensor: 1 channel (compatible with PFCL/PFTL/PFRL series Pressductor® tension sensors)

Excitation: 330 Hz AC, 0.5 A RMS

Measurement Range: 0–20 N (corresponding to model "-20")

Accuracy: ±0.1% of Full Scale

Resolution: 16 bit ADC

Response Time: < 20 ms

3. Input/Output (I/O)

Analog Output AO: 1 channel (0/4–20 mA, 0–10 V, configurable)

Digital Output DO: 1 channel relay (250 V AC / 30 V DC, 1 A)

Communication: RS-485 (Modbus RTU)

4. Environment and Mechanics

Operating Temperature: +5 °C ~ +55 °C

Storage Temperature: –40 °C ~ +70 °C

Protection Grade: IP20 (installed in cabinet)

Dimensions (Width × Height × Depth): 120 × 180 × 100 mm

Weight: Approximately 1.9 kg

Certifications: CE, UL, RoHS

II. Core Functions

Single-channel Tension Measurement: Basic type, suitable for single roll / simple sheet tension monitoring

Panel Operation: 2×16 LCD (including Chinese), buttons for calibration / parameter setting

Self-Diagnosis: Sensor break, short circuit, overload, communication failure alarm

Unit Switching: N, kN, kg, lbs

Digital Filtering: Adjustable, suitable for high-speed / low-speed sheets

III. Typical Applications

Lightweight Sheets: Paper, film, textiles, wires and cables

Spooling / Reeling Tension Monitoring (Simple Control)

Replace traditional analog tension amplifiers to improve accuracy and stability

IV. Installation and Wiring (Simplified)

1. Installation

Standard DIN rail installation (IP20 cabinet)

Away from vibration, heat sources, and oil stains

2. Wiring (Terminal)

Power: +24 V / 0 V / PE

Sensor: +Ex / −Ex / +Sig / −Sig

AO: + / − (0/4–20 mA or 0–10 V)

DO: Normally Open / Common Terminal (Relay)

Communication: RS-485 (A/B lines)

V. Quick Debugging Steps

Power on self-check, display model and version

Set parameters: Tension unit, sensor rated load, sensitivity (mV/V)

Calibration:

Zero Point: No load → Press "Zero"

Range: Hang standard weight → Input weight

Configure AO: Map tension value (4–20 mA corresponds to 0–100% range)

Set alarms: Upper and lower limits, fault threshold