PolyScience SD07R-20, SD7LR-20, SD15R-30, SD20R-30, SD28R-30 Operating Manual

Circulating Baths with Standard Digital Temperature Controller

Operator’s Manual

Models:

SD07R-20

SD7LR-20

SD15R-30

SD20R-30

SD28R-30

SD07H170

SD15H170

SD20H170

SD28H170

SD29VB3S

SD29VB5R

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Table of Contents
Introduction .................................................................................................................................................	3
PolyScience Circulating Baths with the Standard Digital Temperature Controller...................................	3
General Safety Information.......................................................................................................................	4
Safety Recommendations.........................................................................................................................	5
Regulatory Compliance and Testing ........................................................................................................	6
Unpacking Your Circulator........................................................................................................................	6
Contents ...................................................................................................................................................	7
Controls and Components........................................................................................................................	8
Quick-Start.................................................................................................................................................	12
Installation and Startup ............................................................................................................................	14
General Site Requirements ....................................................................................................................	14
Adding Liquid to the Bath Reservoir .......................................................................................................	14
Pump Inlet and Outlet Connections........................................................................................................	15
External Closed Loop Circulation ...........................................................................................................	15
Refrigeration Control Connections (Refrigerating/Heating Circulators only)..........................................	16
Electrical Power ......................................................................................................................................	16
RS232 Serial Communication ................................................................................................................	17
Controller Setup......................................................................................................................................	18
Normal Operation......................................................................................................................................	20
Keys and Controls ..................................................................................................................................	20
Turning Your Circulator ON ....................................................................................................................	20
Main Operational Display (Home) ..........................................................................................................	21
Set-Up Sub-Menus .................................................................................................................................	21
Adjusting the Temperature Set Point......................................................................................................	22
Selecting the Temperature Unit..............................................................................................................	23
Selecting the Pump Speed .....................................................................................................................	24
Calibrating Your Circulator......................................................................................................................	25
Setting the Low Limit Temperature.........................................................................................................	26
Setting the High Limit Temperature........................................................................................................	27
Selecting the Serial Communication Baud Rate ....................................................................................	28
Setting the Auto Cool Temperature ........................................................................................................	29
Resetting the Factory Default Values .....................................................................................................	29
Changing Your Circulator's Viewing Angle.............................................................................................	30
Loss of Power Restart ............................................................................................................................	30
Inert Gas Purge ......................................................................................................................................	31
Tap Water Cooling..................................................................................................................................	31
Reservoir Cover Storage ........................................................................................................................	31
Display Messages and Alarms ................................................................................................................	32
Routine Maintenance and Troubleshooting...........................................................................................	33
Maintaining Clear Bath Water.................................................................................................................	33
Draining the Bath Reservoir ...................................................................................................................	33
Checking the Over-Temperature Safety System....................................................................................	34
Cleaning Your Circulator.........................................................................................................................	35
Temperature Controller ......................................................................................................................	35
Bath Reservoir....................................................................................................................................	35
Pump Impeller ....................................................................................................................................	35
Condenser, Air Vents, and Reusable Filter (Refrigerating / Heating Circulators only) ......................	35
Temperature Controller Removal and Re-Installation ............................................................................	36
Removal .............................................................................................................................................	36
Re-Installation.....................................................................................................................................	37
Troubleshooting Chart ............................................................................................................................	38

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Technical Information...............................................................................................................................	40
Performance Specifications....................................................................................................................	40
Reservoir Fluids......................................................................................................................................	41
Application Notes....................................................................................................................................	42
Tubing and Fitting Temperature Ranges................................................................................................	43
Fluid Compatibility ..................................................................................................................................	43
RS232 Communications.........................................................................................................................	44
Equipment Disposal (WEEE Directive) ...................................................................................................	46
Replacement Parts and Accessories ......................................................................................................	47
PolyScience Circulating Bath Fluids ......................................................................................................	49
Service and Technical Support ...............................................................................................................	49
Warranty.....................................................................................................................................................	50

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Introduction

Thank you for choosing a PolyScience Circulating Bath with Standard Digital Temperature Controller. Extremely easy to use and maintain, it combines design innovation with highly intuitive operation to deliver convenient and reliable 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:

•Simple, intuitive operation

•Extra-large digital readout that displays actual and set point temperature simultaneously

•Powerful two-speed pressure pump with external circulation capability for closed-loop applications

•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 I non-flammable 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.

PolyScience Circulating Baths with the Standard Digital Temperature Controller

	Model Type	Reservoir	Temperature Range
		Capacity	°C	°F
	SD07R-20 Refrigerating / Heating Bath	7 liters	-20° to 170°C	-7° to 338°F
	SD7LR-20 Refrigerating / Heating Bath	7 liters	-20° to 170°C	-7° to 338°F
	SD15R-30 Refrigerating / Heating Bath	15 liters	-30° to 170°C	-22° to 338°F
	SD20R-30 Refrigerating / Heating Bath	20 liters	-30° to 170°C	-22° to 338°F
	SD28R-30 Refrigerating / Heating Bath	28 liters	-30° to 170°C	-22° to 338°F
	SD07H170 Heating Only Bath	7 liters	Ambient +10° to 170°C	Ambient +20° to 338°F
	SD15H170 Heating Only Bath	15 liters	Ambient +10° to 170°C	Ambient +20° to 338°F
	SD20H170 Heating Only Bath	20 liters	Ambient +10° to 170°C	Ambient +20° to 338°F
	SD28H170 Heating Only Bath	28 liters	Ambient +10° to 170°C	Ambient +20° to 338°F
	SD29VB3S Polycarbonate Viscosity Bath	29 liters	Ambient +10° to 85°C (1)	Ambient +20° to 185°F (1)
	SD29VB5R Polycarbonate Viscosity Bath	29 liters	Ambient +10° to 85°C (1)	Ambient +20° to 185°F (1)

1. Maximum operating temperature for polycarbonate tank; Standard Digital Temperature Controller capable of higher temperatures.

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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.

This symbol indicates a protective conductor terminal.

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 only for use with Class I non-flammable fluids (per DIN 12876-1).

•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.

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

•Use only non-acid bath fluids.

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 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.

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 open bath 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.

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Regulatory Compliance and 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

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.

In the unlikely event that the unit was damaged or does not operate properly, contact the transportation company, file a damage claim, and contact the company where your Circulator was purchased.

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Contents

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

	Refrigerating / Heating			Heating Only		Viscosity
	Bath			Bath		Bath
Resource Disk with	●			●		●
Operator’s Manual
Reservoir Lid	●			●
3-ft / 0.91 m IEC to IEC	●			N/A		N/A
Power Cord
6-ft / 1.82 m IEC to Mains	●			●		●
Power Cord
Refrigeration Control	●			N/A		N/A
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		Integral
Certificate of Compliance	●			●		●
Quick-Start Guide	●			●		●

1.120V and 240V models

2.240V models only

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Controls and Components

Standard Digital Controller

3.75” Color

LCD 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

Safety Set Reset

Access

Touch Scroll Bar

Set Key

Swivel 180

Latch Release

Refrigeration Control

Connection (functional on

Refrigerating/Heating

Circulators only)

RS232 Serial Port

Inert Gas Injection Port

Fluid Outlet Connection

Bypass Tubing

Fluid Inlet Connection

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Refrigerating/Heating Baths

Reservoir Drain Valve and Port (behind access panel)

Side access on SD7LR-20)

Washable Air Filter (behind access panel)

IEC Power Connection to

Refrigeration Power Module

Refrigeration Power Module

Power Switch / Circuit Breaker

Standard Digital

Temperature Controller

Reservoir Cover

Drain Valve and Port (right side on SD7LR-20)

Refrigeration Control

Connection

Power

Cooling

Cooling Fault

Fan

Cooling System Status Display

Refrigeration Control Connection

IEC Power Connection to Controller

IEC Power Connection to Mains

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Heating Only Baths

Reservoir Drain Valve and Port

(behind access panel)

Power Switch / Circuit Breaker

IEC Power Connection to Mains

Tap Water Cooling Connection

(inlet)

Standard Digital

Temperature Controller

Reservoir Cover

Tap Water Cooling Connection (outlet)

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Viscosity Baths

Standard Digital

Controller

Lidded Viscometer Ports

Tap Water

Cooling Coil

Reservoir

Drain Port

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: 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 and Startup for additional information.

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

deck

1 Fill reservoir with fluid

Minimum: 4.5 in. / 11.5 cm below top deck

Heating only models

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

Heating only models

3	Place Power Switch / Circuit
	Breaker in ON position			Refrigerating / heating
				models

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4 Turn Controller “ON”

				5B.
				Touch and hold or
	Enter temperature			slide finger up/down
5				scroll bar
	set point
			5A.
			Press SET

6

Set safety thermostat



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Installation and Startup

Your Circulating Bath with Standard Digital Temperature Controller is designed to be simple to set-up and install. The only tools required are a flat-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.

Adding Liquid to the Bath Reservoir

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 4.5 inches / 11.5 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.

Minimum Fluid Level = 4.5 inches / 11.5 cm below underside of top deck

Maximum Fluid Level =

1 inch / 2.54 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 (13 mm) ID tubing may also be slid over these connections and held in place with hose clamps (minimum 7/8 inch / 22 mm) ID.

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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