PolyScience AP07R-20, AP07R-40, AP7LR-20, AP15R-30, AP15R-40 Operating Manual

Circulating Baths with Advanced Programmable Temperature

Controller

Operator’s Manual

Models:

AP07R-20

AP07R-40

AP7LR-20

AP15R-30

AP15R-40

AP20R-30

AP28R-30

AP45R-20

AP07H200

AP15H200

AP20H200

AP28H200

AP06S150

AP10S150

AP20S150

AP28S150

AP08P100

AP11P100

AP14P100

AP17P100

AP23P100

AP28P100

AP29VB3S

AP29VB5R

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Table of Contents
Introduction .................................................................................................................................................	4
Circulating Baths with Advanced Programmable Temperature Controller...............................................	4
General Safety Information.......................................................................................................................	5
Safety Recommendations.........................................................................................................................	6
Regulatory Compliance & Testing ............................................................................................................	7
Unpacking Your Circulator........................................................................................................................	8
Contents ...................................................................................................................................................	8
Controls & Components............................................................................................................................	9
Advanced Programmable Controller ....................................................................................................	9
Refrigerating/Heating Baths ...............................................................................................................	10
Heating Only Baths.............................................................................................................................	11
Open Bath Systems (Stainless Steel) ................................................................................................	12
Open Bath Systems (Polycarbonate).................................................................................................	12
Viscosity Bath (Polycarbonate) ..........................................................................................................	13
Quick-Start.................................................................................................................................................	14
Installation & Startup................................................................................................................................	15
General Site Requirements ....................................................................................................................	15
Adding Liquid to the Bath Reservoir .......................................................................................................	16
Pump Inlet and Outlet Connections........................................................................................................	17
External Closed Loop Circulation ...........................................................................................................	17
Open Loop Circulation............................................................................................................................	18
Refrigeration Control Connections (Refrigerating/Heating Circulators only)..........................................	19
Electrical Power ......................................................................................................................................	19
Refrigerating / Heating Circulators .....................................................................................................	19
Heat Only Circulators and Open Bath Systems .................................................................................	20
Communication.......................................................................................................................................	21
USB Communication ..........................................................................................................................	22
Ethernet ..............................................................................................................................................	22
RS232 / RS485 Serial Communication ..............................................................................................	22
External (P2) Temperature Probe ..........................................................................................................	22
Controller Setup ........................................................................................................................................	23
Power......................................................................................................................................................	23
Safety Set Temperature..........................................................................................................................	23
Basic Operation.........................................................................................................................................	25
Turning Your Circulator On.....................................................................................................................	25
Controller & Touch Screen Navigation ...................................................................................................	25
Controller Navigation..........................................................................................................................	25
Touch Screen Navigation ...................................................................................................................	25
Menu Structure .......................................................................................................................................	27
Main Operational Displays (Home Screens) ..........................................................................................	28
Status Bar...........................................................................................................................................	28
Home Screens....................................................................................................................................	29
Adjusting the Temperature Set Point......................................................................................................	30
General Operational Settings .................................................................................................................	32
Pump Speed.......................................................................................................................................	33
Unit .....................................................................................................................................................	33
Sound .................................................................................................................................................	33
Language............................................................................................................................................	33
Display................................................................................................................................................	33
Lock Out .............................................................................................................................................	33
Auto Restart........................................................................................................................................	33
Personalize.........................................................................................................................................	33
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Display Filter.......................................................................................................................................	34
SHC (Specific Heat Capacity) ............................................................................................................	34
Time and Date Settings ..........................................................................................................................	34
Time....................................................................................................................................................	34
Date ....................................................................................................................................................	34
Safety Settings........................................................................................................................................	35
High Limit / Low Limit Temperatures..................................................................................................	35
High Alarm / Low Alarm Temperatures ..............................................................................................	35
Control ....................................................................................................................................................	36
Probe Control .....................................................................................................................................	36
Auto Cool............................................................................................................................................	36
Fluid Type...........................................................................................................................................	37
P2 - P1................................................................................................................................................	37
PID......................................................................................................................................................	37
External Cooling Control ....................................................................................................................	38
Send Internal Data USB/WEB............................................................................................................	38
Reset Memory and Reboot ................................................................................................................	38
Communications and Data Logging .......................................................................................................	38
Ethernet ..............................................................................................................................................	38
RS232.................................................................................................................................................	39
USB ....................................................................................................................................................	39
RS485.................................................................................................................................................	39
Timer.......................................................................................................................................................	40
Enabling / Disabling the Local Lock Out.................................................................................................	41
Advanced Operation .................................................................................................................................	42
Time/Temperature Programming ...........................................................................................................	42
Creating a Temperature Program ......................................................................................................	42
Previewing a Program ........................................................................................................................	45
Running a Program ............................................................................................................................	46
Editing a Program...............................................................................................................................	47
Saving and Uploading Programs........................................................................................................	48
Event Scheduling....................................................................................................................................	51
Creating and Installing a Personalized Home Screen............................................................................	53
Circulator Monitoring and Control Using an Internet Browser................................................................	54
Calibration..................................................................................................................................................	55
Restoring All Factory Default Values......................................................................................................	57
System Restoration ..................................................................................................................................	57
Changing Your Circulator's Viewing Angle............................................................................................	58
Inert Gas Purge .........................................................................................................................................	58
Tap Water Cooling ....................................................................................................................................	58
Reservoir Cover Storage..........................................................................................................................	59
Routine Maintenance & Troubleshooting...............................................................................................	60
Service Sub-Menu ..................................................................................................................................	60
Diagnostic Data Logging.........................................................................................................................	61
Maintaining Clear Bath Water.................................................................................................................	61
Draining the Bath Reservoir ...................................................................................................................	62
Checking the Over-Temperature / Low Liquid Level Safety Systems....................................................	63
Cleaning Your Circulator.........................................................................................................................	64
Temperature Controller Removal and Re-Installation ............................................................................	65
Removal .............................................................................................................................................	65
Re-Installation.....................................................................................................................................	66
Calibrating the Touch Screen .................................................................................................................	67
Display Module Firmware Updates.........................................................................................................	67
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Warning and Fault Messages.................................................................................................................	68
Warnings ............................................................................................................................................	68
Faults..................................................................................................................................................	69
Troubleshooting Chart ............................................................................................................................	70
Technical Information...............................................................................................................................	72
Performance Specifications....................................................................................................................	72
Reservoir Fluids......................................................................................................................................	74
Application Notes....................................................................................................................................	76
Tubing and Fitting Temperature Ranges................................................................................................	76
Fluid Compatibility ..................................................................................................................................	76
RS232/RS485 Communications.............................................................................................................	77
USB Data Logging..................................................................................................................................	79
USB B Setup, Monitoring, and Control...................................................................................................	79
Ethernet Configuration............................................................................................................................	80
Direct Computer to Controller Configuration ......................................................................................	80
Wired or Wireless Network Configuration ..........................................................................................	80
TCP Control Configuration .................................................................................................................	82
External Cooling Control.........................................................................................................................	83
Equipment Disposal (WEEE Directive) ...................................................................................................	85
Replacement Parts & Accessories..........................................................................................................	86
PolyScience Circulating Bath Fluids ......................................................................................................	88
Service & Technical Support ...................................................................................................................	89
Warranty.....................................................................................................................................................	89

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3

Introduction

Thank you for choosing this Circulating Bath with Advanced Programmable Temperature Controller. It is intended for the precise temperature control of suitable liquids in a reservoir. Extremely easy to use and maintain, it combines design innovation with highly intuitive operation to deliver convenient and versatile liquid temperature control for a wide range of applications.

WARNING: PolyScience Circulating Baths are not intended for directly controlling the temperature of foods, pharmaceuticals, medicines, or other objects which may be ingested by or injected in humans or animals. Any such objects must be isolated from contact with the bath fluid and bath surfaces.

Here are some of the features that make your Circulating Bath so user-friendly:

Intuitive touch screen operation Time/temperature programming

Selection of seven different temperature displays, including time-temperature graphing Powerful variable-speed pressure/suction pump with external circulation capability 180° viewing radius (Swivel 180™ rotating control head)

DuraTop™ heat and chemical resistant top plate

LidDock™ self-storing reservoir cover (integrated baths only) Built-in temperature protection

Suitable for use with Class III flammable bath fluids per DIN 12876-1

It will take you very little time to get your new Circulating Bath installed and running. This Operator’s Manual is designed to guide you quickly through the process. We recommend that you read it thoroughly before you begin.

Circulating Baths with Advanced Programmable Temperature Controller

	Model Type	Reservoir	Temperature Range
		Capacity	°C	°F
	AP07R-20 Refrigerating/Heating	7 liter	-20° to 200°C	-4° to 392°F
	AP07R-40 Refrigerating/Heating	7 liter	-40° to 200°C	-40° to 392°F
	AP7LR-20 Refrigerating/Heating	7 liter	-20° to 200°C	-4° to 392°F
	AP15R-30 Refrigerating/Heating	15 liter	-30° to 200°C	-22° to 392°F
	AP15R-40 Refrigerating/Heating	15 liter	-40° to 200°C	-40° to 392°F
	AP20R-30 Refrigerating/Heating	20 liter	-30° to 200°C	-22° to 392°F
	AP28R-30 Refrigerating/Heating	28 liter	-30° to 200°C	-22° to 392°F
	AP45R-20 Refrigerating/Heating	45 liter	-25° to 135°C (1)	-13° to 275°F (1)
	AP07H200 Heating Only	7 liter	Ambient +10° to 200°C	Ambient +20° to 392°F
	AP15H200 Heating Only	15 liter	Ambient +10° to 200°C	Ambient +20° to 392°F
	AP20H200 Heating Only	20 liter	Ambient +10° to 200°C	Ambient +20° to 392°F
	AP28H200 Heating Only	28 liter	Ambient +10° to 200°C	Ambient +20° to 392°F
	AP06S150 Stainless Steel Open Tank	6 liter	Ambient +10° to 150°C (2)	Ambient +20° to 302°F (2)
	AP10S150 Stainless Steel Open Tank	10 liter	Ambient +10° to 150°C (2)	Ambient +20° to 302°F (2)
	AP20S150 Stainless Steel Open Tank	20 liter	Ambient +10° to 150°C (2)	Ambient +20° to 302°F (2)
	AP28S150 Stainless Steel Open Tank	28 liter	Ambient +10° to 150°C (2)	Ambient +20° to 302°F (2)
	AP08P100 Polycarbonate Open Tank	8 liter	Ambient +10° to 85°C (3)	Ambient +20 to 185°F (3)
	AP11P100 Polycarbonate Open Tank	11 liter	Ambient +10° to 85°C (3)	Ambient +20 to 185°F (3)
	AP14P100 Polycarbonate Open Tank	14 liter	Ambient +10° to 85°C (3)	Ambient +20 to 185°F (3)
	AP17P100 Polycarbonate Open Tank	17 liter	Ambient +10° to 85°C (3)	Ambient +20 to 185°F (3)
	AP23P100 Polycarbonate Open Tank	23 liter	Ambient +10° to 85°C (3)	Ambient +20 to 185°F (3)

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AP28P100 Polycarbonate Open Tank	28 liter	Ambient +10° to 85°C (3)	Ambient +20 to 185°F (3)
AP29VB3S Polycarbonate Viscosity	29 liter	Ambient +10° to 85°C (3)	Ambient +20 to 185°F (3)
AP29VB5R Polycarbonate Viscosity	29 liter	Ambient +10° to 85°C (3)	Ambient +20 to 185°F (3)

1.Maximum operating temperature at which ±0.01°C temperature stability can be maintained; Advanced Programmable Controller is capable of higher temperatures.

2.Maximum operating temperature for stainless steel tank. Advanced Programmable Controller is capable of higher temperatures.

3.Maximum operating temperature for polycarbonate tank. Advanced Programmable Controller is capable of higher temperatures.

General Safety Information

When installed, operated, and maintained according to the directions in this manual and common safety procedures, your Circulating Bath should provide safe and reliable temperature control. Please ensure that all individuals involved in the installation, operation, or maintenance of this Circulating Bath read this manual thoroughly prior to working with the unit.

This symbol alerts you to a wide range of potential dangers.

This symbol advises you of danger from electricity or electric shock.

This symbol indicates that a hot surface may be present.

This symbol marks information that is particularly important.

This symbol indicates alternating current.

/These symbols on the Power Switch / Circuit Breaker indicate that they place the main power supply ON / OFF.

This symbol on the Power Key indicates that it places the unit in a standby mode. It DOES NOT fully disconnect the unit from the power supply.

Read all instructions pertaining to safety, set-up, and operation.

Proper operation and maintenance is the user’s responsibility.

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Safety Recommendations

To prevent injury to personnel and/or damage to property, always follow your workplace’s safety procedures when operating this equipment. You should also comply with the following safety recommendations:

WARNING:

This Circulating Bath is suitable for use with Class III flammable fluids per DIN 12876-1. A fire hazard may be present.

Be aware of the chemical hazards that may be associated with the bath fluid used. Observe all safety warnings for the fluids used as well as those contained in the material safety data sheet.

Explosive gas mixtures may accumulate if used with insufficient ventilation. Use this Circulating Bath in a well ventilated area or beneath a suitable fume hood only.

Use only recommended bath fluids; see Technical Information in the rear of this manual for recommended fluids.

Use only non-acid bath fluids.

WARNING: When using Class III flammable fluids per DIN 12876-1, the user must attach the following warning labels to the front of the unit so that they are well visible:

Warning Label		Danger Area.
W09		Attention! Observe instructions
Colors: Yellow/black		(operating manual, safety data sheet)
Mandatory Label		Carefully read the user information prior to
M018		beginning operation.
Colors: Blue/white		Scope: EU
or
Semi S1-0701		Carefully read the user information prior to
Table A1-2 #9		beginning operation.
Colors: Blue/white		Scope: NAFTA

WARNING:

Always connect the power cord on this Circulator to a grounded (3-prong) power outlet. Make certain that the outlet is the same voltage and frequency as your unit.

Never operate the Circulator with a damaged power cord.

Always turn the Circulator OFF and disconnect mains power before performing any maintenance or service.

WARNING:

Never operate the Circulator without bath fluid in the reservoir. Periodically check the reservoir to ensure that the liquid depth is within acceptable levels. Always refill the reservoir using the same bath fluid type that is already in the reservoir. Bath oil must not contain any water contaminants and should be preheated to the actual bath temperature before adding as there is an explosion hazard at high temperatures.

Always drain all fluid from the reservoir before moving or lifting your Circulator. Be sure to follow your organization’s procedures and practices regarding the safe lifting and relocation of heavy objects.

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WARNING:

Always allow the bath fluid to cool to ambient temperature before draining.

The reservoir cover, top deck, and/or external pump connections may become hot with continuous use. Exercise caution when touching these parts.

Always keep within the 85°C maximum operating temperature limit if using a polycarbonate tank.

WARNING: It is the user’s responsibility to properly decontaminate the unit in the event hazardous materials are spilled on exterior or interior surfaces. Consult manufacturer if there is any doubt regarding the compatibility of decontamination or cleaning agents.

Regulatory Compliance & Testing

This equipment is compliant with the European Directive 2002/95/EC and its latest amendments on Restrictions on Hazardous Substances (RoHS) and below the given limits of hazardous substances.

ETL Intertek (60 Hz units)

UL 61010-1 / CSA C22.2 No. 61010-1 — Safety Requirements for Measurement, Control, and Laboratory Use; Part 1: General Requirements

UL 61010A-2-010 / CSA C22.2 No. 61010-2-010:04 — Safety Requirements for Measurement, Control, and Laboratory Use; Part 2-010: Particular Requirements for Laboratory Equipment for the Heating of Materials

UL 61010A-2-051 / CSA C22.2 No. 61010-2-051:04 — Safety Requirements for Measurement, Control, and Laboratory Use; Part 2-051: Particular Requirements for Laboratory Equipment for the Mixing and Stirring

CE (all units)

EC Low Voltage Directive 2006/95/EC

EC Electromagnetic Compatibility Directive 2004/108/EC IEC 61010-1-2001

IEC 61010-2-2001

IEC 61326:2005 / EN 61326 : 2006

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Unpacking Your Circulator

Your Circulator was packed in a special carton or cartons. You should keep the packaging, along with all packing materials, until the unit has been installed and you are certain it is working properly.

CAUTION: Remove any loose packing material that may have fallen into the heater/pump housing during shipping. Before powering up, check that nothing remains around the heater or Circulator pump.

We recommend that you begin using your Circulator immediately to confirm proper operation, since beyond one week you may be eligible for warranty repair only (rather than replacement). You’ll find complete warranty information in the back of this manual.

WARNING: Keep unit upright when moving. Be sure to follow your company’s procedures and practices regarding the safe lifting and relocation of heavy objects.

Contents

The items included with your Circulator will vary depending on which model Circulating Bath you purchased.

		Refrigerating /	Heating Only	Open Bath
		Heating Bath	Bath	System
	Resource Disk with	●	●	●
	Operator’s Manual
	Reservoir Cover	●	●	●
	3-ft / 0.91 m IEC to	●
	IEC Power Cord
	6-ft / 1.82 m IEC to	●	●	●
	Mains Power Cord
	Refrigeration Control	●
	Cable
			1/4 in. NPT to 3/16 in. barbed adapter (1)
	Fittings		1/4 in. NPT to 1/4 in. barbed adapter (1)
			1/4 in. NPT to 3/8 in. barbed adapter (1)
			¼ in. NPT to M16 barbed adapter (2)
	Cooling Coil	N/A	Integral	Optional
	Certificate of	●	●	●
	Compliance
	Quick-Start Guide	●	●	●

1.60Hz and 50Hz models

2.50Hz models only

Viscosity

Bath

●

●

●

Integral

●

●

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Controls & Components

Advanced Programmable Controller

SmartTouch™ Touch

Screen Display

Power Key

Home Key

Menu Key

Power Switch /

Circuit Breaker (located on Refrigeration Power Module on Refrigerating/Heating Circulators)

Safety Set

Thermostat

IEC Electrical

Connection

IEC Power Cord

Fluid Inlet

Connection

Inert Gas Injection Port

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Set Key

Swivel 180™

Latch Release

USB A Connection

USB B Connection

Ethernet Connection

RS232/RS485

Serial Port

External (P2)

Temperature Probe

Connection

Refrigeration Control

Connection (functional on

Refrigerating/Heating

Circulators only)

Fluid Outlet Connection

Bypass Tubing

9

Refrigerating/Heating Baths

Reservoir Drain Valve and Port (behind access panel)

Side access on AP7LR-20)

Washable Air Filter (behind access panel)

IEC Power Connection to

Refrigeration Module

Refrigeration Power

Module

Power Switch / Circuit Breaker

Power

Cooling

Cooling Fault

Fan

Cooling System Status Display

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Advanced Programmable

Temperature Controller

Reservoir Cover

Drain Valve and Port

(right side on AP7LR-20 only)

Refrigeration

Control Connection

Refrigeration Control

Connection

IEC Power Connection to Controller

IEC Electrical Connection to Mains

10

Heating Only Baths

Reservoir Cover

Reservoir Drain and Port

(behind access panel)

Power Switch / Circuit Breaker

IEC Power Connection to Mains

Tap Water Cooling

Connection (inlet)

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Advanced Programmable

Controller

Tap Water Cooling

Connection (outlet)

11

Open Bath Systems (Stainless Steel)

Reservoir Cover

Open Bath Systems (Polycarbonate)

Reservoir Cover

Drain Port (17, 23 and 28 liter baths only

Advanced Programmable

Controller

Cooling Coil Deck Opening (10, 20 and 28 liter models)

Advanced Programmable Controller

Cooling Coil Deck Opening (17, 23 and 28 liter models)

WARNING: The top deck on Open Bath Systems is not attached. Do not remove deck while Circulator is operating. Do not lift bath by grasping the Temperature Controller or top deck. Always disconnect electrical power and drain fluid from bath before moving.

WARNING: The PolyScience Advanced Programmable Temperature Controller is designed for use with Class III flammable liquids per DIN 12876-1; however, we strongly recommend that Open Bath Systems be used only with non-flammable fluids.

WARNING: To avoid the potential for burns, allow the Circulator to cool completely before cleaning or performing any maintenance.

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Viscosity Bath (Polycarbonate)

Advanced

Programmable

Lidded Viscometer Controller

Openings

Tap Water

Cooling Coil

Drain

WARNING: The top deck on Viscosity Baths is not attached. Do not remove deck while Circulator is operating. Do not lift bath by grasping the Temperature Controller or top deck. Always disconnect electrical power and drain fluid from bath before moving.

WARNING: The PolyScience Advanced Programmable Temperature Controller is designed for use with Class III flammable liquids per DIN 12876-1; however, we strongly recommend that Viscosity Baths be used only with non-flammable fluids.

WARNING: To avoid the potential for burns, allow the Circulator to cool completely before cleaning or performing any maintenance.

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Quick-Start

Unless otherwise specified, quick-start instructions apply to all models.

See Installation & Startup for additional information.

Maximum: 1 in. / 2.54 cm below underside of top deck

1 Fill reservoir with fluid

Minimum: 3.0 in. / 7.6 cm below underside of top deck

Heating only models

2A

Connect all electrical power cords	IEC power cord	Refrigerating / Heating
	from Controller		models
and control cables	to Refrigeration
	Power Module
2B			Refrigeration control
			cable

Heating only models

3A

Place Power Switch / Circuit Breaker in ON position

Refrigerating / Heating models

3B

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14

4 Turn Controller “ON”

5	Set safety thermostat		

6 Set Temperature Set Point

Installation & Startup

Your Circulating Bath with Advanced Programmable Temperature Controller is designed to be simple to set-up and install. The only tools required are a Philips-head screwdriver and a container for adding water or other suitable fluid to the bath reservoir.

General Site Requirements

Locate your Circulator on a level surface free from drafts and direct sunlight. Do not place it where there are corrosive fumes, excessive moisture, high room temperatures, or in excessively dusty areas.

Refrigerating / Heating Circulators must be 10.2 cm / 4 inches or more away from walls or vertical surfaces so that airflow is not restricted.

Avoid voltage drops by using properly grounded power outlets wired with 14 gauge or larger diameter wire and if possible, be close to the power distribution panel. The use of extension cords is not recommended; this will reduce the potential for problems caused by low line voltage.

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Adding Liquid to the Bath Reservoir

WARNING: When using Class III flammable fluids per DIN 12876-1, the user must attach the following warning labels to the front of the unit so that they are well visible:

Warning Label		Danger Area.
W09		Attention! Observe instructions
Colors: Yellow/black		(operating manual, safety data sheet)
Mandatory Label		Carefully read the user information prior to
M018		beginning operation.
Colors: Blue/white		Scope: EU
or
Semi S1-0701		Carefully read the user information prior to
Table A1-2 #9		beginning operation.
Colors: Blue/white		Scope: NAFTA

WARNING: Read the safety data sheet for the bath fluid being used carefully before filling reservoir. WARNING: See Technical Information in the rear of this manual for a list of compatible liquids.

WARNING: If the proper fluid level is not maintained, the heater coil may become exposed and possibly damaged (fluid level too low) or the bath may overflow (fluid level too high).

The liquid in the reservoir should be maintained at a depth between 1 inch / 2.54 cm and 3.0 inches / 7.6 cm below the underside of the bath’s top deck. Upon start up, it may be necessary to add fluid to the bath to compensate for the fluid required for external circulation. Likewise, be sure to compensate for fluid displacement when placing samples or other materials in the Circulator’s reservoir.

Maximum Fluid Level = 1 inch / 2.54 cm below underside of top deck

Minimum Fluid Level = 3.0 inches / 7.6 cm below underside of top deck

WARNING: Always drain all fluid from the reservoir before moving or lifting your Circulator. Be sure to follow your organization’s procedures and practices regarding the safe lifting and relocation of heavy objects.

WARNING: To avoid the potential for burns, allow the Circulator to cool completely before cleaning or performing any maintenance.

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Pump Inlet and Outlet Connections

WARNING: When connecting tubing to an external application, it is the user’s responsibility to make sure that the tubing and fittings connected to the Circulator are suitable for the fluid being used and the temperature range of operation.

CAUTION: The Circulator’s bypass tubing is secured to the fluid inlet and outlet connections by high temperature nylon hose clamps, which can be removed by carefully cutting them with diagonal cutters.

CAUTION: Secure the tubing to the inlet and outlet fittings using hose clamps with a minimum ID of 7/8 inch (22 mm). Do not operate the unit without hose clamps.

WARNING: If the Circulating Bath will not be used for external circulation, the inlet and outlet ports should remain connected using the Buna N bypass tubing provided with the unit.

The pump inlet and outlet ports are female ¼ inch NPT connections that permit use of barbed tubing adapters or hard plumbing fittings. ½ inch (13mm) ID tubing may also be slid over these connections and held in place with a hose clamp.

If the pump inlet and outlet are not used for external circulation, the Bypass Tubing provided with the unit should be left in place in order to optimize fluid mixing within the reservoir.

The nylon barbed tubing adapter fittings supplied with the unit are intended for applications from

-40° to 93°C. For applications above 93°C, brass, stainless steel, or Teflon® fittings are recommended. ¼ inch NPT to M16 stainless steel male adapter fittings are provided with all 50Hz models.

NOTE: The use of quick-connect fittings is not recommended as they typically restrict flow rate.

External Closed Loop Circulation

Connect the pump inlet and outlet to the external apparatus. To maintain adequate flow, avoid restrictions in the tubing. When connecting the Circulator to more than two closed loops, the use of a manifold made of “Y” adapters to divide the fluid into multiple banks is recommended. After setting up multiple closed loops, check for adequate flow at the return manifold of each loop and check that the bath fluid is at an adequate level. A booster pump may be added to closed loops without damaging the Circulator’s pump.

The temperature control stability of a closed loop system is better at the external apparatus than in the Circulator reservoir (provided the control point of the apparatus represents a constant load and is well insulated). For example, if you circulate fluid through a viscometer at 50°C, the temperature variation observed in the Circulator reservoir may be ±0.1°C while the temperature variation in the viscometer may be only ±0.05°C.

Although temperature stability is generally better at the external apparatus control point, depending on the length of tubing used and the efficiency of the insulation, the actual temperature reading at the external apparatus may be slightly different than the temperature reading at the Circulator reservoir.

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Open Loop Circulation

The duplex (pressure/suction) pump permits circulation to and from an external open bath. To prevent siphoning when the Circulating Bath is turned off, position both baths so that the two fluid levels are at the same elevation.

Connect the pump inlet and outlet to the external bath using tubing of the same diameter and length. The same size fittings should also be used on both the inlet (suction) and outlet (pressure). This helps ensure a balanced flow. A restricting valve or pinch clip should be installed in the pressure (outlet) tubing and adjusted to match the return suction (inlet) flow rate. Cut the external end of the suction tube into a “V” shape so that the tube will not seal itself against the wall of the external tank. Both the pressure and suction tubing should be securely fastened to the external tank to prevent movement during use.

When using flexible tubing, the suction tubing must have a wall thickness that will not collapse under vacuum, particularly when going around bends.

Circulating Bath Height Regulation — Position the ends of the pressure and suction tubes at the desired maximum fluid level in the external bath and fill the bath to that level. Fill the Circulating Bath to a height one inch (25mm) below the top of the reservoir. Start the pump and adjust the restricting valve/pinch clip on the outlet tubing until the liquid height in both baths remains constant. Add fluid to the baths as needed to compensate for the fluid in the inlet and outlet lines.

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Refrigeration Control Connections (Refrigerating/Heating Circulators only)

Refrigeration Control

Connection

Refrigeration Control

Cable

Refrigeration Control

Connection

Electrical Power

WARNING: The Circulator’s power cord must be connected to a properly grounded electrical receptacle. Make certain that this electrical outlet is the same voltage and frequency as your Circulator. The correct voltage and frequency for your Circulator are indicated on the identification label on the back of the Controller.

CAUTION: The use of an extension cord is not recommended. If one is necessary, it must be properly grounded and capable of handling the total wattage of the unit. The extension cord must not cause more than a 10% drop in voltage to the unit.

Refrigerating / Heating Circulators

Attach the 3-ft / 0.91 m power cord to the IEC electrical connectors on the Temperature Controller (male) and the Refrigeration Power Module (female).

Attach the 6-ft / 1.8 m power cord to the IEC electrical connection on the Refrigeration Power Module and then plug the male connector into the Mains electrical outlet.

Place the Power Switch / Circuit Breaker on the Refrigeration Power Module in the ON position. An hour glass will appear on the Temperature Controller’s display while the Circulator completes an initialization sequence. Once completed, “Standby” will appear on the display; the Power Key will also light.

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IEC Power Connection to

Refrigeration Power Module

IEC to IEC Power Cord

Refrigeration

Power Module

Power Switch /

Circuit Breaker IEC Power

Connection to

Controller

IEC Power Connection to Mains

IEC to Mains Power Cord

Heat Only Circulators and Open Bath Systems

Attach the 6-ft / 1.8 m power cord to the IEC electrical connection on the Temperature Controller and then plug the male connector into the Mains electrical outlet.

Place the Power Switch / Circuit Breaker on the Temperature Controller in the ON position. The display on the Controller will light and “Standby” will appear on the display; the Power Key will also light.

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Communication

The Advanced Programmable Controller features a variety of connectivity options. Following are some typical ways you can use them to monitor and control the operation of your Circulator.

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USB Communication

Two USB ports (A and B) are provided on the rear of the Temperature Controller for use with USB flash drives to log temperature data and store and/or transfer time/temperature programs. See Basic Operation, Communications and Data Logging for more information.

Ethernet

An Ethernet port is provided on the back of the Temperature Controller to enable you to connect your Circulator to a computer network.

RS232 / RS485 Serial Communication

CAUTION: Always turn electrical power to the Circulator OFF before making a connection to the serial (DB9) port.

Your Circulator features RS232 / RS485 serial communication for remote data logging and control capability. A DB9 connector is provided on the rear of the Temperature Controller for this purpose. See

Basic Operation, Communications and Data Logging for set up information.

The serial interface should be connected to a serial communication port on a remote PC using an appropriate cable. Information on the RS232 / RS485 commands and communication protocol can be found in the Technical Information section of this manual.

External (P2) Temperature Probe

Your Circulator is capable of controlling temperature based on either the temperature of the internal bath or that of an external vessel or device. The connection for the optional external temperature probe is on the rear of the Temperature Controller. The Temperature Controller automatically detects the external temperature probe when it is connected. See Replacement Parts & Accessories for available lengths and part numbers.

Pin Out Diagrams — External (P2) Temperature Probe Connection

RTD SENSOR: 4 WIRE CIRCUIT, 100 OHMS @ 0 DEGREES C,

MAXIMUM OPERATING TEMPERATURE @ 200 C, CLASS A 0.003850 OHMS/DEGREES C.

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Controller Setup

Power

Press . “Initializing” will appear briefly on the display, the Circulator will begin running, and the default Main Run screen will appear.

Safety Set Temperature

NOTE: The Safety Set Temperature is displayed and set in whichever temperature unit is currently selected. The default is °C. To set the temperature using °F, see General Operational Settings, Unit.

This is a “Do Not Exceed” temperature setting for your Circulator and is the temperature at which the heater will be turned OFF should the liquid level in the bath drop too low or the heater malfunctions. It is normally set about 5° higher than the desired operating temperature. Setting the Safety Set Temperature is a simple 4-step procedure.

WARNING: The Safety Thermostat is user-adjustable from approximately 40° to 240°C / 104° to 464°F. Do not force the indicator dial beyond the stops at either end of the dial’s range.

1. Press to access the Main menu.

2. Touch the Safety icon to access the Safety sub-menu.

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3.Using a small, Philips head screwdriver, rotate the Safety Set Thermostat on the rear of the Temperature Controller until the desired Safety Set Temperature is displayed (clockwise to increase; counter-clockwise to decrease).

4.Press the  icon or the key to return to the Main Menu.

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Safety Set

Temperature

Current Safety Probe reading

Safety Set

Thermostat



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Basic Operation

Turning Your Circulator On

Press the key.

The Circulator will begin running and the Main Operational Display (Home) will appear.

Controller & Touch Screen Navigation

Controller Navigation

POWER –

Turns the Circulator’s

Temperature Controller ON

and OFF.

HOME --

Returns the to the Main Operational Display (Home) from any screen

Toggles through available

Home screens.

SET --

Used in conjunction with various screen icons and buttons to change the set point temperature

MENU --

Accesses the Temperature Controller’s Main Menu (from any screen)

Touch Screen Navigation

Main Menu

Press to access.

Status Bar – Appears on all screens

Accesses associated sub-menu

Return to Main Run screen (Home screen)

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Sub-Menus

NOTE: The following examples are intended to illustrate how commonly used touch screen icons function when displayed. A specific icon may or may not be displayed on a sub-menu page. The function/operation of icons not shown here are described in the sections associated with the screens on which they appear.

Sub-Menu Item -- Toggles between available choices

Previous Menu

Information –

Help regarding sub-menu items

Cancel -- Cancels change to a setting

Accept --

Accepts change to a setting

Current Setting (white letters on blue field)

Alternate Setting

(blue letters on white field)

Next Page

Previous Page

Decreases Value

Increases Value

Current Setting (more than two settings available) – Touch to access other available selections

CAUTION: The menu and sub-menu screens time-out and revert to the Main Operational Display (Home Screen) after approximately 30 seconds without any touch screen interaction. Any changes made will take effect automatically.

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