Keyence SJ-E300L Ionizer | 2960mm Bar Type

Keyence SJ-E300L Bar Ionizer for Wide-Area Static Control

Product Introduction

The Keyence SJ-E300L belongs to the SJ-E series of energy-saving high-speed sensing ionizers. Specifically, this model serves as a low-flow bar-type unit designed for wide production lines. Its 2960 mm total length and 49 tungsten electrodes make it suitable for continuous operation over large surfaces. Furthermore, the Hi-Power I.C.C. method maintains ion balance within ±30 V, ensuring precise static control without overcompensation.

Technical Specifications

Ion Generation and Control
The SJ-E300L employs a corona discharge method with a shockless resistive coupling structure. Additionally, it applies a pulse AC voltage of ±8000 V to generate ions. Ion balance control relies on the Hi-Power I.C.C. method. Meanwhile, the measured ion balance reaches ±30 V under standard conditions (300 mm distance, 0.2 MPa air pressure).

Electrical and Connectivity
Power requirements range from 24 to 36 VDC ±10%. Current draw is 700 mA at 24 V or 500 mA at 36 V. For integration, the unit provides NPN open collector outputs for ion level warning, condition warning, and alarm. A static elimination stop input is also available. Besides, remote control communication is supported for configuration and status monitoring.

Air and Electrode System
An Rc 1/8 air connection port accepts supply pressures from 0.1 to 0.5 MPa, with 0.2 MPa recommended for optimal performance. The 49 electrode probes use tungsten material for durability. Furthermore, the effective static elimination range measures 3080 mm when installed at a 50 mm distance.

Mechanical and Environmental Parameters

The Keyence SJ-E300L operates within an ambient temperature range of 0 to +40°C. Relative humidity tolerance spans 35 to 85% RH without condensation. The main body construction combines ABS, PBT, PP, LCP, PPS, SPS, and SUS materials. At 2.90 kg, the unit requires appropriate mounting support for its 2960 mm span. Finally, the overvoltage category is I and pollution degree is 2.

Installation Guide

Mounting the SJ-E300L requires attention to distance and airflow. First, position the bar at a working distance between 50 and 2000 mm from the target surface. Next, connect the air supply to the Rc 1/8 port and regulate pressure to 0.2 MPa. Then, wire the 24–36 VDC power and control signals according to the NPN open collector configuration. Subsequently, verify ion balance using a charged plate monitor. Finally, enable remote communication if centralized monitoring is required.

Packaging List

• 1 × Keyence SJ-E300L Bar-Type Ionizer Unit

• 1 × Mounting Bracket Set

• 1 × Air Connection Fitting (Rc 1/8)

• 1 × Instruction Manual

FAQ

Q1: What is the effective static elimination length of the SJ-E300L?
A: The effective length is 3080 mm when measured at an installation distance of 50 mm. This makes it suitable for wide web or roll-to-roll processes.

Q2: Can the SJ-E300L operate without an air supply?
A: No. The low-flow design relies on air supply for ion transport. Connect clean, dry air at 0.1 to 0.5 MPa (0.2 MPa recommended) to the Rc 1/8 port.

Q3: How many electrodes does this bar ionizer have?
A: The unit contains 49 tungsten electrode probes distributed along its 2960 mm body. This density supports uniform ion generation across the span.

Q4: What communication capability does the SJ-E300L offer?
A: It supports remote control communication for parameter adjustment and status reading. However, no built-in Ethernet or fieldbus port is provided.

Q5: What is the power consumption of the SJ-E300L?
A: Current consumption is 700 mA at 24 VDC or 500 mA at 36 VDC. The supply voltage tolerance is ±10% within the 24–36 VDC range.