PolyScience MX07R-20 - User Manual

Questions and Answers

L
leblancvictoriaAug 16, 2025
Why is my PolyScience MX07R-20 unit not cooling?
- D
  Derek McgeeAug 16, 2025
  Your PolyScience Laboratory Equipment might not be cooling because of dust on the air filter or condenser, blocked air ventilation screens, a temperature set point that is too high, excessive heat load, high ambient air temperature (over 35°C / 95°F), or incorrect line voltage. Clean the air filter or condenser, remove any blockages, lower the temperature set point, ensure the heat load is within the bath's capacity, and decrease the ambient air temperature. Also, check and correct the voltage as required.
N
ndoughertyAug 19, 2025
Why is my PolyScience MX07R-20 not running (digital display is blank)?
- T
  Terri AriasAug 19, 2025
  Your PolyScience Laboratory Equipment might not be running because there is no power to the unit, the electrical cord between the control head and refrigeration power module is loose or unplugged (refrigerated units only), or the power switch/circuit breaker is in the OFF position. Ensure the electrical cord is secure and connected to a working outlet. Also, make sure the power switch/circuit breaker is in the ON position.
Q
quinnsoniaAug 22, 2025
Why is my PolyScience MX07R-20 not heating up?
- C
  Catherine WoodsAug 22, 2025
  Your PolyScience Laboratory Equipment may not be heating because there is not enough fluid in the reservoir, the temperature set point is too low, or the safety set temperature is too low. Add fluid to the reservoir, increase the temperature set point, and increase the safety set temperature.
S
Sean WhiteAug 25, 2025
What to do if my PolyScience MX07R-20 has insufficient cooling?
- M
  Mary ByrdAug 26, 2025
  If your PolyScience Laboratory Equipment has insufficient cooling, it could be due to dust buildup on the air filter or condenser, blocked air ventilation screens, a temperature set point that's too high, excessive heat load, an ambient air temperature that's too high (above 35°C / 95°F), or low or high line voltage. Clean the air filter and/or condenser, remove any blockages, decrease the temperature set point, ensure the heat load doesn't exceed the bath's capacity, and lower the ambient air temperature. Check and correct line voltage as needed.
T
Tricia ClarkAug 28, 2025
What to do if my PolyScience MX07R-20 has insufficient heating?
- J
  Julia TaylorAug 28, 2025
  If your PolyScience Laboratory Equipment has insufficient heating, refer to the insufficient circulation solutions. Also, check and correct the line voltage as required. Increase the ambient temperature or relocate the unit. Check for heat loss from external tanks and hoses, and also check for vapor/heat loss from the internal reservoir.
H
hunterfeliciaAug 31, 2025
How to fix unstable temperature in PolyScience MX07R-20?
- L
  Laurie JensenAug 31, 2025
  To fix an unstable temperature in your PolyScience Laboratory Equipment, check the pump flow and operation, and clean any debris or mineral buildup on the pump, heater, or temperature sensor as required. The instability might be caused by insufficient circulation or debris/mineral buildup.
K
Kelly EdwardsSep 3, 2025
Why can't my PolyScience Laboratory Equipment achieve low-end extreme temperatures?
- W
  welchmatthewSep 3, 2025
  Your PolyScience Laboratory Equipment might not be reaching low-end extreme temperatures because the pump speed is too high, the bath fluid is incorrect, there's insufficient insulation on external fluid lines, the ambient air temperature is too high (above 35°C / 95°F), line voltage is incorrect, dust has built up on the air filter or condenser, air ventilation screens are blocked, or there's excessive heat load. Reduce the pump speed, verify the fluid is suitable for the required temperature, ensure external fluid lines are properly insulated, lower the ambient air temperature, check and correct the voltage, clean the air filter or condenser, remove blockages, and ensure the heat load is within the bath's capacity.
C
Christina HuntSep 6, 2025
What to do if my PolyScience MX07R-20 is not circulating fluid?
- P
  Patrick MurilloSep 6, 2025
  If your PolyScience Laboratory Equipment is not circulating fluid, it may be due to insufficient fluid in the reservoir or a jammed pump impeller. Add fluid to the reservoir. Inspect the pump and remove any debris as needed.
K
Karen LaneSep 9, 2025
Why is STANDBY appearing on the digital display of my PolyScience MX07R-20?
- J
  Jasmine GreenSep 9, 2025
  If 'STANDBY' is appearing on the digital display of your PolyScience Laboratory Equipment, it means the unit is in Standby mode. Press the Power Key on the front panel to exit Standby mode.
A
Amy StephensSep 12, 2025
What causes insufficient circulation in PolyScience Laboratory Equipment?
- W
  William RodriguezSep 12, 2025
  Insufficient circulation in your PolyScience Laboratory Equipment can be caused by fluid viscosity being too high, external tubing diameter being too small, or low line voltage. Replace the fluid with a lower viscosity bath fluid, use larger diameter tubing, and check and correct the line voltage as required.

Summary

Introduction

PolyScience Circulating Baths with the MX Temperature Controller

Overview of PolyScience Circulating Baths with MX Temperature Controller.

General Safety Information

Safety Recommendations

Specific recommendations to ensure safe handling and operation of the circulator.

Regulatory Compliance and Testing

ETL Intertek (60 Hz units)

Compliance details for ETL Intertek standards for 60 Hz models.

CE (all units)

Compliance details for CE standards applicable to all units.

Unpacking Your Circulator

Package Contents

Controls and Components

MX Controller

Details on the MX Temperature Controller interface, display, and buttons.

Refrigerating;Heating Baths

Visual guide to the physical layout and key components of Refrigerating/Heating baths.

Heating Only Baths

Open Bath Systems (stainless steel)

Open Bath Systems (polycarbonate)

Viscosity Baths (glass)

Coliform Bath

Quick-Start

Installation and Startup

General Site Requirements

Recommendations for selecting an appropriate and safe installation location.

Adding Liquid to the Bath Reservoir

Instructions and precautions for filling the circulator's reservoir with fluid.

External Closed Loop Circulation

Refrigeration Control Connections (Refrigerating;Heating Circulators only)

Electrical Power

Refrigerating; Heating Circulators

Specific electrical power connection instructions for Refrigerating/Heating models.

All Other Circulators

General electrical power connection instructions for non-refrigerating/heating models.

Controller Setup

Power

How to turn the circulator's temperature controller on and initiate operation.

Safety Set Temperature

Configuring the safety thermostat to prevent over-temperature conditions and ensure safe operation.

Normal Operation

Keys and Controls

Explanation of the function of each button and control on the temperature controller.

Turning Your Circulator ON

Detailed steps to power on the circulator and begin its operation.

Main Operational Display

Description of the primary display screen, showing actual and set temperatures.

Set-Up Sub-Menus

Temperature unit

Setting the display unit for temperature between Celsius and Fahrenheit.

Offset Calibration

Adjusting the temperature display for improved accuracy against a reference.

Low Limit

Establishing a minimum temperature threshold to trigger alarms or shutdowns.

High Limit

Establishing a maximum temperature threshold to trigger alarms or shutdowns.

Auto Cool

Configuring the automatic refrigeration activation temperature for cooling baths.

Adjusting the Temperature Set Point

Selecting the Temperature Unit

Setting the Offset Calibration

Setting the Low Limit Temperature

Setting the High Limit Temperature

Adjusting the Auto Cool Temperature

Resetting the Factory Default Values

Loss of Power Restart

Tap Water Cooling

Reservoir Cover Storage

Display Messages and Alarms

Routine Maintenance and Troubleshooting

Maintaining Clear Bath Water

Methods and recommendations for keeping the bath water clean and free of contaminants.

Draining the Bath Reservoir

Step-by-step instructions for safely draining the fluid from the bath reservoir.

Polycarbonate Open Tank Circulators

Checking the Over-Temperature Safety System

Cleaning Your Circulator

Temperature Controller

Specific cleaning instructions for the MX Temperature Controller unit.

Bath Reservoir

Guidance on cleaning the bath reservoir and its wetted components.

Condenser, Air Vents, and Reusable Filter (Refrigerated Models only)

Maintenance of cooling system components for refrigerated models.

Temperature Controller Removal and Re-Installation

Removal

Step-by-step guide for safely detaching the temperature controller from the unit.

Re-Installation

Troubleshooting Chart

Technical Information

Performance Specifications

Detailed performance metrics including temperature range, stability, and flow rates.

Reservoir Fluids

Application Notes

Equipment Disposal (WEEE Directive)

Replacement Parts and Accessories

PolyScience Circulating Bath Fluids

Service and Technical Support

Warranty

PolyScience MX07R-20 Specifications

General

Brand	PolyScience
Model	MX07R-20
Category	Laboratory Equipment
Language	English

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