Description

Multispan PI-21 Digital Process Indicator – Accurate Process Value Monitoring

The Multispan PI-21 is a compact 4-digit digital process indicator designed for displaying and monitoring process parameters received from analog transmitters and sensors. It supports configurable 0–10 V DC, 0–20 mA DC and 4–20 mA DC inputs, making it suitable for a wide range of industrial automation and process-monitoring applications. (Multispan)

🔹 Product Overview

The PI-21 converts an analog process signal into an easy-to-read digital value. It can be used for monitoring parameters such as pressure, level, flow, temperature, pH and other transmitter-based process values. Multispan also documents applications involving RPM measurement from VFD analog signals. (Multispan)

Key Features

• Brand: Multispan
• Model: PI-21
• Product Type: Digital Process Indicator
• Display: 4-digit, 7-segment, 0.56-inch red LED
• Input: 0–10 V DC / 0–20 mA DC / 4–20 mA DC
• Input filtering: 0.1–10 seconds
• Selectable decimal resolution
• Display range: -999 to 9999
• Accuracy: ±1% FSD ±1 digit
• Supply: 100–270 V AC, 50–60 Hz
• Power consumption: approximately 2 VA at 230 V AC
• Panel mounting
• Front-side IP-65 protection available as specified
• Operating temperature: 0°C to 55°C
• Relative humidity: up to 95%, non-condensing (Multispan)

⚙️ How Multispan PI-21 Works

The PI-21 receives an analog signal from a transmitter or sensor and displays the corresponding process value.

Sensor / Transmitter → 0–10 V or 4–20 mA Signal → PI-21 → Digital Display

The input can be configured for voltage or current signals, while the decimal point and displayed range can be configured according to the application. (Multispan)

📋 Technical Specifications

Specification	Multispan PI-21
Product	Digital Process Indicator
Model	PI-21
Display	4-Digit, 7-Segment, 0.56″ Red LED
Input	0–10 V DC / 0–20 mA DC / 4–20 mA DC
Range	-999 to 9999
Resolution	Decimal point selectable
Input Filter	0.1–10 seconds
Accuracy	±1% FSD ±1 digit
Supply	100–270 V AC, 50–60 Hz
Consumption	Approx. 2 VA @ 230 V AC
Size	Approx. 72 × 72 × 36 mm
Panel Cutout	Approx. 68 × 68 mm
Mounting	Panel Mount
Operating Temperature	0–55°C
Humidity	Up to 95% RH, non-condensing
Protection	IP-65 front side, as specified

Specifications are based on Multispan’s official PI-21 product information and datasheet. (Multispan)

🏭 Applications

The Multispan PI-21 can be used for monitoring:

• Temperature
• Pressure
• Flow
• Level
• pH and analytical measurements
• Oxygen and other transmitter outputs
• RPM from VFD analog signals
• Industrial process parameters
• Automation and control panels
• Manufacturing equipment
• OEM machinery
• Process industries (Multispan)

⭐ Benefits of PI-21

Easy-to-Read Digital Display

The 4-digit red LED display provides a clear indication of the measured process value.

Universal Analog Inputs

Support for 0–10 V, 0–20 mA and 4–20 mA signals allows the indicator to work with different industrial transmitters. (Multispan)

Flexible Display Configuration

Selectable decimal-point resolution and display range make it possible to configure the indication according to the process requirement.

Compact Panel Design

The 72 × 72 mm panel format provides a practical solution for industrial control panels.

Industrial Process Monitoring

The PI-21 can be integrated into systems where operators need a dedicated display for important process parameters.

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ELITE INDUSTRIAL ENGINEERS

Automation | Innovation | Reliability

Elite Industrial Engineers provides industrial automation, instrumentation and control solutions for OEMs, panel builders, manufacturing industries and system integrators.

📞 Contact Us

Company: ELITE INDUSTRIAL ENGINEERS
Product: Multispan PI-21 Digital Process Indicator
Contact No.: +91 9315333867
Website: eliteindustriesengrees.com