BRONKHORST EL-FLOW Base Series User Manual

Instruction manual
EL-FLOW Base series
Mass Flow Controllers
Doc. no.: 9.17.061N Date: 08-04-2019
ATTENTION
Please read this instruction manual carefully before installing and operating the instrument.
Not following the guidelines could result in personal injury and/or damage to the equipment.

BRONKHORST EL-FLOW Base Series Specifications

General

Accuracy	± 0.5% Rd plus ± 0.1% FS
Ingress Protection	IP40
Pressure Rating	100 bar
Leak Integrity (external)	<1x10^-9 mbar l/s He
Power Supply	15...24 VDC
Analog I/O	0...5 V, 0...10 V, 4...20 mA
Digital Communication	RS-232
Material (wetted parts)	Hastelloy C-22
Seals	Viton, Kalrez

Summary

Installation Instructions

Fluidic connections

Piping requirements

Electrical connections

Instructions for connecting the instrument's analog and digital interfaces.

Zeroing

Procedure for adjusting the instrument's zero point to compensate for environmental factors.

Basic Operation

Digital communication protocol detection

Explains the auto-detection of communication protocols (RS232/Modbus).

Modbus RS485 operation

Instructions for integrating the instrument into a Modbus RS485 system.

Micro-switch control mode

LED indications

Basic Parameters and Properties

Advanced Operation

Initreset Parameter

Auto Zeroing

Controller Response Adjustment

How to tune PID controller parameters like Kp and Kspeed for desired response time.

Changing Default Control Mode

Troubleshooting

General

Troubleshooting summary general

A table listing common symptoms, their possible causes, and recommended actions.

Removal and Return Instructions

Removal and Return Procedures