BHO DZF-6050 User Manual

1
Vacuum Drying Purging Oven
(Controlled by Microchips with Timing Function)
Operation Manual
Our Lawyers Say: This is a general-purpose vacuum oven for professional, industrial or educational use.
It is suitable for a working environment where no flammable, volatile or combustible materials are being heated.
This oven is not intended for hazardous use.
Your satisfaction and safety require a complete understanding of this unit.
Read the instructions thoroughly and be sure all operators are given adequate training before attempting to put the unit in
service.
This equipment must be used only for its intended application.
Our Design Engineers Say: Your oven is intended for use indoors, at temperatures between 25°C and 40°C,< 80% Relative Humidity.
Extreme external temperatures or humidity levels can affect the oven’s ability to control temperature.
* If sample releases vapor under heating, place a dryer between the vacuum pump and the oven to
avoid vapor damage to the pump.
* Always wear thermal gloves and protective goggles during operation.
* Always use the power cord that comes with the unit. Never modify the cable.
* Keep oven away from any electromagnetic interference. Do not unplug the oven during normal operation.
*Do not try to heat flammable/explosive materials or materials that may release corrosive substances.
*When vacuuming is done, the vacuum valve should be closed first before turning off the power to
the vacuum pump; otherwise vacuum pump oil may backflow into the oven.
*Keep the oven clean at all time; clean the glass and chamber with soft cotton cloth after each use.
*If oven is to be kept idle for a long time, protect its circuit board with neutral grease or Vaseline to
avoid corrosion, and cover the oven entirely to keep it away from dust and moisture.

BHO DZF-6050 Specifications

General

Brand	BHO
Model	DZF-6050
Category	Oven
Language	English

Summary

Vacuum Oven Operation Guidelines

Starting the Purging Process

Steps for initiating the vacuum oven purging process, including valve operation.

Setting Target Temperature

Procedure for setting and confirming the target temperature for oven operation.

Minimizing Temperature Spikes

Method to minimize temperature spikes by using staged target temperature settings.

Drying Time and Vacuum Maintenance

Guidance on selecting drying time and maintaining vacuum levels.

Post-Purging Oven Procedures

Steps after purging, including door opening precautions.

Preset Temperature and Timer Settings

Setting Target Temperature and Dwelling Time

Detailed steps for configuring target temperature and dwelling time parameters.

AutoTune Calibration Process

Normal Working AutoTune Setup

Steps to ensure normal operation and set up AutoTune for the first time.

Autotune Process Functionality

Explanation of the Autotune process and its benefits for temperature control.

Vacuum Oven Calibration Methods

Auto-Tune (AT) Calibration

Using the Auto-Tune feature for accurate temperature control and faster heating rates.

Calibration Using Formula

Calculating and applying an offset value using a specific formulation.

Manual PID Adjustment for Stability

Adjusting PID parameters (P, I, D) manually for optimal temperature stability.

Vacuum Oven Troubleshooting Guide

Troubleshooting: Power Issues

Solutions for problems related to the oven not receiving power.

Troubleshooting: PV Window Display Errors

Diagnosing and resolving issues with the PV window display readings.

Troubleshooting: Heating Failures

Steps to diagnose and fix problems when the oven fails to heat.

Troubleshooting: Temperature Control Errors

Addressing issues related to temperature control failures and parameter errors.

Troubleshooting: Alarm Conditions

Resolving abnormal alarms related to oven temperature variations.

Troubleshooting: Temperature Difference

Identifying and resolving large differences between PV and actual values.

Product Support and Warranty