Phcbi MLR-352 Series - User Manual

Questions and Answers

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Melissa SmithAug 3, 2025
What to do if the alarm is activated on Phcbi MLR-352?
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  Aaron BarrAug 4, 2025
  If the alarm is activated on your Phcbi Laboratory Equipment, it could be due to several reasons. First, the chamber temperature might be exceeding the set high or low limit. Check the chamber temperature settings and the high/low limit temperature alarm settings. Also, putting a lot of heat load into the chamber at once can trigger the alarm; the alarm should stop when the chamber temperature decreases. Ensure there isn't an excessive heat source inside. Electromagnetic waves from nearby appliances may also cause this issue, so keep the unit away from such appliances.
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Michelle BrownAug 14, 2025
Why is my Phcbi MLR-352 not working even when switched on?
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  Christopher SmithAug 14, 2025
  If your Phcbi Laboratory Equipment isn't operating when switched on, the issue could stem from the unit not being properly connected to the power supply, or the power source may not have sufficient capacity. Ensure the unit is correctly connected and that the power supply is adequate. Alternatively, there might be a power failure, a blown fuse, or an activated circuit breaker. Check the power status, the fuse, and the circuit breaker to resolve this.
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Theresa RivasAug 23, 2025
How to fix a temperature program that isn't working on Phcbi MLR-352 Laboratory Equipment?
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  Timothy MoyerAug 23, 2025
  If the temperature isn't changing according to the program you've set on your Phcbi Laboratory Equipment, it might be because the programmed temperature variation exceeds the unit's pull-up/pull-down performance capabilities. Try setting a program that takes the unit's performance into consideration. Also, incorrect high/low limit temperature alarm settings can cause this issue; double-check and correct these settings. Finally, electromagnetic waves from nearby appliances may interfere with the unit's operation, so keep it away from such appliances.

Summary

Introduction to PHCbi Environmental Test Chamber

Precautions for Safe Operation

Environmental Conditions for Unit Operation

Chamber Components Overview

Switch Box Functionality

Control Panel Operations

Remote Record Terminal

Remote Alarm Terminal

Installation Site Requirements

Caution for Installation Environment

Provides specific guidance on suitable temperature ranges and potential issues like frost formation.

Unit Installation Procedure

Before Commencing Operation

Installing Inner Attachments

Details on how to correctly set up shelves and the air exhaust vent cover for optimal chamber performance.

Preventing Chamber Contamination

Top Screen Display Overview

Functions Through Control Panel

Standby Operation Settings

Setting of Key Lock (MENU;Std-by)

Setting of Key Lock (Key Lock)

Procedure to enable the key lock function on the control panel to prevent unintended changes.

Setting of Key Unlock (Key Unlock)

High Limit;Low Limit Alarm Settings

Programming and Editing Functions

Edit Saved Program

Start Program Execution

Join Function for Continuous Programs

Skip Step Functionality

Stop Program Execution

Automatic Defrost Settings

Manual Defrost Procedure

Various Setting Options

Display of Log Data

How to view recorded operational data for temperature, light, and humidity.

Setting of Date, Time, and Log Interval

Alarm Setting Configuration

Key Lock Password Setting

Default Setting Options

Delete Program Data

Light Step and Illuminance Setting

Humidity Control for MLR-352 H

Routine Maintenance Procedures

Cleaning of Unit

Guidelines for regular cleaning of the unit's interior and exterior to maintain its condition.

Replacement of Fluorescent Lamp

Procedure for safely replacing fluorescent lamps and glow starters within the chamber.

Cleaning of Evaporating Tray

Cleaning of Filter

Alarms and Safety Functions

Automatic Set Temperature Alarm

Details on how the unit alerts users when chamber temperature deviates from the set limits.

Automatic Set Humidity Alarm (MLR-352 H only)

Information on humidity deviation alerts for the MLR-352H model.

Safety Functions

Overview of built-in safety features designed to maintain chamber conditions and protect the unit.

Operation After Power Failure

Explanation of how the unit resumes operation after a power interruption, preserving settings.

Troubleshooting Common Issues

Unit Disposal Guidelines

Performance Data (MLR-352 H)

Technical Specifications

Performance Characteristics

Safety Check Sheet for Servicing

Phcbi MLR-352 Series Specifications

General

Weight	120 kg
Type	Refrigerator
Capacity	352 liters
Frequency	60Hz
External Dimensions (W x D x H)	700 x 700 x 1900 mm
Internal Dimensions (W x D x H)	550 x 550 x 1200 mm
Internal Volume	352 liters
Shelves	4
Dimensions (H x W x D)	1900 x 700 x 700 mm