
OM0255 Page 4 of 103
July/2019
LabGard® ES HD Energy Saver Class II, Laminar Flow Biosafety Cabinet
Models NU-581-400E/500E/600E Operation & Maintenance Manual
TABLE OF CONTENTS
Section No. 1.............................................................................. General Information
Section No. 2.............................................................................. Models & Features
Section No. 3.............................................................................. Warranty Disclaimer
Section No. 4.............................................................................. Shipments
Section No. 5.............................................................................. Installation Instructions
5.1..................................................................................... Location
5.2..................................................................................... Set-up Instructions
5.3..................................................................................... Testing Methods and Equipment
Section No. 6.............................................................................. Operating the NU-581E
6.1..................................................................................... Biosafety Cabinet Control
6.2..................................................................................... Operating Guidelines
6.3..................................................................................... Operating Sequence
6.4..................................................................................... Ergonomics
6.5..................................................................................... Cleaning Procedures
Section No. 7.............................................................................. General Maintenance
7.1..................................................................................... Decontamination
7.2..................................................................................... Fluorescent Lamp Bulb Replacement
7.3..................................................................................... Primary HEPA Prefilter Replacement
7.4..................................................................................... Secondary HEPA Filter/Motor Replacement
7.5..................................................................................... Sliding Window Replacement & Manual Adjustment
7.6..................................................................................... Airflow Control System Setup & Calibration
7.7..................................................................................... HEPA Filter Leak Tests
7.8..................................................................................... Airflow Smoke Pattern Test
7.9..................................................................................... Cleanliness Classification Test for Pharmacy Application
7.10................................................................................... Main Control Board Description & Replacement
7.11................................................................................... Digital Airflow Sensor Description & Replacement
Section No. 8..................................................................................... Error Messages, Troubleshooting, Option-Diagnostics &
Airflow Sensor Performance Verification
Section No. 9.............................................................................. Remote Contacts
Section No. 10............................................................................ Optional Equipment
10.1................................................................................... Ultraviolet Light
Section No. 11............................................................................ Electrical/Environmental Requirements
Section No. 12............................................................................ Disposal and Recycle
Insert.......................................................................................... Replacement Parts
MANUAL DRAWINGS
ACD-19205................................................................................. NU-581E Airflow Schematic
BCD-19206 ................................................................................. NU-581-400E Specification Drawing
BCD-19207 ................................................................................. NU-581-500E Specification Drawing
BCD-19208 ................................................................................. NU-581-600E Specification Drawing
BCD-19209 ................................................................................. NU-581E Security Drain Valve Installation
BCD-16509 ................................................................................. Auto Decontamination Setup
ASSEMBLY DRAWINGS
BCD-11817 ................................................................................. Control Center & Front Decorative Panel Assembly
BCD-11686 ................................................................................. Sliding Window Assembly & Adjustment
BCD-13923 ................................................................................. NU-581 Manual Base Adjustment
BCD-19210 ................................................................................. NU-581 Window Assembly Hinge Operation
BCD-12281 ................................................................................. Auto Window Switch/Cable Adjustment and Maintenance
BCD-12282 ................................................................................. Auto Window Cable and Window Assembly
ELECTRICAL SCHEMATICS
BCD-19211 ................................................................................. NU-581-400E/500E/600E Electrical Schematic