NESLAB RTE-101浴室暖水循环器温度控制器用户操作手册说明书

2024年10月18日发(作者：朋紫雪)

RTE-101 Bath Circulator

Thermo NESLAB Manual P/N U00461

Rev. 11/08/00

Installation, Operation and Service Manual

RTE-101 Constant Temperature Bath and Circulator

PREFACE

SECTION I

Safety

General Information

SECTION II

SECTION III

Installation

Temperature Control

SECTION IV

SECTION V

Troubleshooting

Maintenance/

SECTION VI

Wiring Diagram

SECTION VI

Warranty

Table of Contents

. 2

Digital 7

High 8

.15

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Preface

Compliance

Products tested and found to be in compliance with the requirements defined in

the EMC standards defined by 89/336/EEC as well as Low Voltage Directive

(LVD) 73/23/EEC can be identified by the CE label on the rear of the unit. The

testing has demonstrated compliance with the following directives:

LVD, 73/23/EEC

EMC, 89/336/EEC

Complies with UL 3101-1:93

EN 55011, Class A Verification

EN 50082-1:1992

IEC 1000-4-2:1995

IEC 1000-4-3:1994

IEC 1000-4-4:1995

For any additional information refer to the Letter of Compliance that shipped

with the unit (Declaration of Conformity).

Unpacking

Retain all cartons and packing material until the unit is operated and found to

be in good condition. If the unit shows external or internal damage, or does not

operate properly, contact the transportation company and file a damage claim.

Under ICC regulations, this is your responsibility.

Warranty

Units have a warranty against defective parts and workmanship for one full

year from date of shipment. See back page for more details.

NES-care Extended

Warranty Contract

•

Extend parts and labor coverage for an additional year.

•

Worry-free operation.

•

Control service costs.

•

Eliminate the need to generate repair orders.

•

No unexpected repair costs.

Other contract options are available. Please contact Thermo NESLAB for more

information.

After-sale Support

Thermo NESLAB is committed to customer service both during and after the

sale. If you have questions concerning the operation of your unit, contact our

Sales Department. If your unit fails to operate properly, or if you have questions

concerning spare parts, contact our Customer Service Department. Before

calling, please obtain the following information:

BOM number___________________________

Serial number__________________________

Software version_________________________

The BOM and serial number on a label on the rear of the unit. To display the

software version see page 10.

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Section I Safety

Warnings

Make sure you read and understand all instructions and safety precautions

listed in this manual before installing or operating your unit. If you have any

questions concerning the operation of your unit or the information in this

manual, contact our Sales Department.

Performance of installation, operation, or maintenance procedures

other than those described in this manual may result in a hazardous

situation and may void the manufacturer's warranty.

Observe all warning labels.

Never remove warning labels.

Never operate damaged or leaking equipment.

Never operate the unit without bath fluid in the bath.

Always turn off the unit and disconnect the line cord from the power

source before performing any service or maintenance procedures, or

before moving the unit.

For 220 - 240 volt units supplied without a line cord, use a harmonized

(HAR) grounded 3-conductor cord, type H05VV-F, with conductors

listed below. A suitable cord end is required for connecting to the

equipment (see unit socket) and must terminate with an IEC approved

plug for proper connection to power supply.

Nominal 1.0 mm

cross section rated 10 Amps Unit Socket: IEC - 320 C13

Always empty the bath before moving the unit.

Never operate equipment with damaged line cords.

Refer service and repairs to a qualified technician.

In addition to the warnings listed above, warnings are posted throughout the

manual. These warnings are designated by an exclamation mark inside an

equilateral triangle with text highlighted in bold print. Read and follow these

important instructions. Failure to observe these instructions can result in

permanent damage to the unit, significant property damage, or personal injury,

or death.

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Description

Specifications

Temperature Range

Temperature Stability

Cooling Capacity

Pump Capacity

Heater

Bath Work Area

(L x W x D)

Inches

Centimeters

Bath Volume

Gallons

Liters

Unit Dimensions

(H x W x D)

Inches

Centimeters

Section II General Information

The RTE Constant Temperature Baths are designed to provide temperature

control for applications requiring a fluid work area or pumping to an external

system.

The units consist of an air-cooled refrigeration system, heater, circulation

pump, stainless steel bath, and a temperature controller.

-12°C to +130°C

±0.03°C

350 watts at 20°C

11.5 liters per minute @ 0' Head, 14.5' Max (60Hz)

10 liters per minute @ 0' Head, 10.5' Max (50Hz)

800 watts

5 x 5 x 5

12.7 x 12.7 x 12.7

1.2

4.5

22¾ x 10

x 14½

57.8 x 25.7 x 36.8

Specifications subject to change.

1. See page 6, Fluid Recommendations.

ications listed for units operating at +20°C bath temperature, +20°C ambient, using

water.

3.115V units. 220V units have a 1200 watt heater.

4. 115V units. 220V units measure 4 3/4 x 6 x 4 3/4 inches (12.1 x 15.2 x 12.1 centimeters).

Work area for both units measured between the reservoir baffle's fill lines.

5. 115V units. 220V units are 1.3 gallons (4.9 liters). Volume for both units measured between

the reservoir baffle's fill lines.

6.115V units. 220V units measure 22 7/8 x 10 3/8 x 15 1/8 inches (58.1 x 26.4 x 38.4

centimeters).

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Section III Installation

Site

Electrical

The unit should be located on a sturdy table or bench top. Ambient tempera-

tures should be inside the range of +10°C to +35°C.

Never place the unit in a location where excessive heat, moisture, or

corrosive materials are present.

A minimum clearance of 30 centimeters (12 inches) between the rear of the

unit and the nearest wall is required for adequate ventilation through the pump

box. This space will also accommodate the pump connections and the tap

water cooling coil connections.

Excessively dusty areas should be avoided and a periodic cleaning schedule

should be instituted (see Section VI, Cleaning).

The unit construction provides extra protection against the risk of

electric shock by grounding appropriate metal parts. The extra protec-

tion may not function unless the power cord is connected to a properly

grounded outlet. It is your responsibility to assure that a proper ground

connection is provided.

Refer to the serial number label on the rear of the unit to identify the specific

electrical requirements of your unit.

Ensure the voltage of the power source meets the specified voltage, ±10%.

The unit is equipped with main circuit protection and thermal protectors for

each branch.

For 220 - 240 volt units supplied without a line cord, use a harmonized

(HAR) grounded 3-conductor cord, type H05VV-F, with conductors

listed below. A suitable cord end is required for connecting to the

equipment (see unit socket) and must terminate with an IEC approved

plug for proper connection to power supply.

Nominal 1.0 mm

cross section rated 10 Amps Unit Socket: IEC - 320 C13.

- 5 -

Requirements

Plumbing

Fluids

Requirements

Filling

To prevent damage to the plumbing lines, always support the ¾" fittings

while installing/removing the pumping caps and lines.

Hose Connections

The pump connections are located at the rear of the pump box and are labelled

PUMP INLET and PUMP OUTLET. These connections are ¼" MPT fittings.

The unit is supplied with hose barbs which accept

" ID tubing.

Flexible tubing, if used, should be of heavy wall or reinforced construction.

Make sure all tubing connections are securely clamped. Avoid running

tubing near radiators, hot water pipes, etc. If substantial lengths of tubing

are necessary, insulation may be required for improved temperature control.

It is important to keep the distance between the unit and your application as

short as possible and to use the largest diameter tubing practical. Tubing

should be straight and without bends. If diameter reductions are required, they

should be made at your application, not at the unit.

Drain

A drain is located on the rear of the unit. The drain on 60 Hz units has a ¼"

MPT fitting. The drain is supplied with a cap plug.

50 Hz units have a knurled valve fitting for a drain. To drain the bath, turn the

fitting one turn counterclockwise.

Never use flammable or corrosive fluids with this unit.

The selected fluid must have a viscosity of 50 centistokes or less at the lowest

operating temperature. Filtered tap water is the recommended fluid for opera-

tion from +7°C to +80°C.

Below +7°C, a 50/50 mixture, by volume, of filtered tap water and laboratory

grade ethylene glycol is suggested.

Above +80°C, the user is responsible for fluids used.

The bath work area has a high and low level marker to guide filling. The

markers are 2.5 centimeter horizontal slits located in the center of the stain-

less steel baffle that separates the work area and the pump assembly. The

correct fluid level falls between these two markers.

If the correct fluid level is not maintained, the heater will be exposed

and may become damaged.

When pumping to an external system, keep extra fluid on hand to maintainthe

proper level as the circulating lines and external system are filled.

Never run the unit when the work area is empty. Avoid overfilling.

Overfilling the bath may damage the insulation, and affects stability as

well as low-end performance.

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Section IV Temperature Controllers

Digital Temperature

Controller

Start Up

Before starting the unit, double check all electrical and plumbing connections

and make sure the work area has been properly filled with bath fluid.

To start the unit, place the circuit breaker on the rear of the controller to the I

position. The pump will start and the digital display will indicate the tempera-

ture of the bath fluid.

Place the Refrigeration Switch to the ON position. The unit will control to the

entered setpoint.

NOTE: Only 115V units are designed for full range cooling. On 220V units the

refrigeration system is designed to operate up to a temperature of +35°C.

On 220V units above +35°C, ensure the refrigeration switch is OFF.

The HEAT LED indicates the controller is adding heat to the reservoir fluid,

operating in the heat band. The indicator is on continuously when the control-

ler is operating in the heat band and flashes, with a 50% duty cycle over 2

seconds, when operating in the heat band proportional band.

The digital controller controls temperature using a PID (Proportional-Integral-

Derivative) algorithm. It is designed with self-diagnostic features and easy to

use operator interface.

NEXT ENTER

Use this key to accept and save changes.

YES,

This dual purpose key is used to answer Yes to Y/N questions or to increment

numerical values upward for setting numeric values.

NO,

This dual purpose key is used to answer No to Y/N questions or to decrement

numerical values downward for setting numeric values.

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High Temperature

Safety

When the controller is powered it displays the reservoir fluid temperature.

Press the NEXT ENTER key to view the setpoint. The display flashes be-

tween SP and the actual setpoint number. If desired, use the YES and NO

keys to change the setpoint. The display flashes as soon as either key is

depressed. Once the desired setpoint is displayed, press the NEXT ENTER

key.

NOTE: The controller will not use the new value until the NEXT ENTER key is

depressed and the display stops flashing. The controller will not allow you to

enter a value above the maximum or below the minimum value, or any illegal

value. If you try to enter an illegal value the display will revert to its original

value when the last digit was entered.

If the NEXT ENTER key is not depressed within one minute, the controller will

time out and the new value will not be accepted. The controller will revert to

the previous value.

NOTE: Error codes are addressed in Section V, Maintenance and Trouble-

shooting.

The unit is equipped with an adjustable high temperature safety located on

the rear of the control box. The safety prevents the heater from reaching

excessively high temperatures that can cause serious damage to the unit. A

single temperature sensor, located on the heater coils in the bath, is used as

a monitor.

A high temperature fault occurs when the temperature of the sensor exceeds

the set temperature limit. In the event of a fault, the FAULT lamp will illumi-

nate and the unit will shut down. The cause of the fault must be identified and

corrected before the unit can be restarted.

The safety is not preset and must be adjusted during initial installation. The

safety can be set for a temperature range of +50°C to +180°C.

To set the safety, locate the adjustment dial and turn it fully clockwise. Turn

the ON/OFF switch OFF then ON.

Start the unit. Adjust the temperature setpoint for a few degrees higher than

the highest desired operating temperature and allow the bath to stabilize at

the temperature setpoint. Turn the dial counterclockwise until you hear a click

and the unit shuts down. The FAULT lamp on the front of the pump box will

light to indicate a fault has occurred.

The safety is now set.

Allow the fluid temperature to cool below the cutout temperature then, without

moving the adjustment dial, turn the main circuit protector OFF then ON.

If a fault ever occurs, once the cause is identified and corrected, turn the main

circuit protector OFF then ON to reset the safety.

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Section V Maintenance & Troubleshooting

Cleaning

Algae

Periodically clean the case and stainless steel bath using a mild soapy

solution. Do not use steel wool; it is too abrasive and will lead to

rusting. Dry the bath using a soft cloth.

For proper operation, the unit needs to pull substantial amounts of air through

the condenser. A build up of dust or debris on the fins of the condenser will

lead to a loss of cooling capacity. Periodic cleaning of the condenser is

necessary.

The frequency of the cleaning depends on the operating environment. After

initial installation, we recommend a monthly visual inspection. After several

months, the frequency of cleaning will be established.

To restrict the growth of algae in the bath, it is recommended that the bath

cover be kept in place and that all circulation lines be opaque. This will

minimize the entrance of light required for the growth of most common algae.

Thermo NESLAB recommends the use of Chloramine-T, 1 gram per 3.5 liters.

The controller also has the capability to display error codes. The codes are:

DisplayIndication

Er 16Bad calibration data, see Controller Displays

Er 25Shorted RTD1

Er 26Open RTD1

Er 19Hit High temperature limit exceeded, see Controller

Displays

Er 21Lot Low temperature limit exceeded, see Controller

Displays

The unit will continue to run with any of the above codes. If any other code

appears contact Thermo NESLAB customer service, see Preface.

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Error Codes

Controller Displays

An alphanumeric display presents numeric readings of various operating

conditions within the bath. Display function is selected by pressing the appro-

priate keys shown below and the next two pages.

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Tune Loop

This loop is used to adjust the controller's PID parameters and set the high/

low temperature limits.

Enter the loop from the reservoir temperature display by pressing and holding

the NO key, then press the NEXT ENTER key. Use the YES/NO keys to

adjust the values. Press the NEXT ENTER key twice to accept the new value.

While in the loop, if any key is not pressed during a one minute time span, the

controller will automatically return to the reservoir temperature display.

NOTE: If the unit exceeds either temperature limit, the appropriate error

message will flash, see page 9. The unit will not shut down (unless the

temperature exceeds the high temperature cutout setting, see page 8).

tUnE? = Tune

HEAt = Heat PID Parameters

Pro = Proportional Band (factory value 1.5%)

Int = Integral (factory value 3.0 repeats per minute)

dEr = Derivative (factory value 0.05 minutes)

Hit = High Temperature Limit (135°C)

Lot = Low Temperature Limit (-15°C)

Stor = Store

NOTE: Should you desire to return to the

temperature display and abort all changes, keep

pressing the NEXT ENTER until the display

reads Stor, then press NO.

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Calibration Loop

This loop is used to calibrate the controller's internal temperature sensor.

To calibrate the sensor install a calibrated reference thermometer in the bath.

Adjust the setpoint to an appropriate high-end temperature.

Once the bath reaches the setpoint and stabilizes, go to the Calibration Loop

by pressing and holding the NO key while pressing the YES key three times.

Enter the actual reference thermometer reading at the r1H prompt. Store the

change.

Return to the reservoir temperature display. Adjust the setpoint to an appro-

priate low-end temperature. Once the bath reaches the setpoint and stabi-

lizes, return to the Calibration Loop and enter the reference thermometer

reading at the r1L prompt. Store the change.

Do not pick points that are outside the safe operating limits of the fluid

in your application. For example with a water bath, 90°C and 5°C would

be typical calibration points.

CAL? = Calibrate

rtd1 = Internal sensor

r1H = High temperature

r1L = Low temperature

Stor = Store

- 12 -

Checklist

Service Assistance

Unit will not start

Make sure the voltage of the power source meets the specified voltage, ±10%.

Refer to the serial number label on the rear of the unit to identify thespe-

cific electrical requirements of your unit.

Check the high temp safety. If the FAULT light is on, ensure the fluid level in

the bath is between baffle marks and the high temp setting is greater than the

bath temperature. Turn the main circuit protector OFF then ON. Attempt to

restart.

No external circulation

Check for obstructions, kinks, or leaks in the circulation tubing.

Circulation will cease when the pump head pressure has been exceeded.

Check the high temp safety. If the FAULT light is on, ensure the fluid level in

the bath is between baffle marks and the high temp setting is greater than the

bath temperature. Turn the ON/OFF switch OFF then ON. Attempt to restart.

Loss of Cooling Capacity

Be sure the refrigeration switch is on and the green refrigeration indicator is

illuminated.

Be sure the cooling capacity of the unit has not been exceeded if circulating to

an external system.

When the unit is shut off, wait approximately five minutes before restarting.

This allows time for the refrigeration pressures to equalize. If the pressures are

not allowed to equalize, the compressor will short-cycle (clicking sound) and

no cooling will occur.

Proper ventilation is required for heat removal. Make sure ventilation through

the unit is not impeded and free of dust and debris.

Ice build up on the cooling coil can act as insulation and lower the cooling

capacity. Raise the temperature of the bath to deice the cooling coil and

increase the concentration of non-freezing fluid.

If, after following these troubleshooting steps, your unit fails to operate

properly, contact our Service Department for assistance. Our Service Depart-

ment can also provide you with list of spare parts for your unit (see Preface,

After-sale Support). Before calling, please obtain the following information:

BOM number

Serial Number

Voltage of power source

- 13 -

Flow Diagram

Section VI Diagrams

- 14 -

Wiring Diagram 60Hz Units

- 15 -

Wiring Diagram 50Hz Units

- 16 -

WARRANTY

Thermo NESLAB Instruments, Inc. warrants for 12 months from date of shipment any Thermo NESLAB unit

according to the following terms.

Any part of the unit manufactured or supplied by Thermo NESLAB and found in the reasonable judgment of

Thermo NESLAB to be defective in material or workmanship will be repaired at an authorized Thermo NESLAB

Repair Depot without charge for parts or labor. The unit, including any defective part must be returned to an

authorized Thermo NESLAB Repair Depot within the warranty period. The expense of returning the unit to the

authorized Thermo NESLAB Repair Depot for warranty service will be paid for by the buyer. Thermo NESLAB’s

responsibility in respect to warranty claims is limited to performing the required repairs or replacements, and no

claim of breach of warranty shall be cause for cancellation or recision of the contract of sales of any

respect to units that qualify for field service repairs, Thermo NESLAB’s responsibility is limited to the component

parts necessary for the repair and the labor that is required on site to perform the repair. Any travel labor or

mileage charges are the financial responsibility of the buyer.

The buyer shall be responsible for any evaluation or warranty service call (including labor charges) if no defects

are found with the Thermo NESLAB product.

This warranty does not cover any unit that has been subject to misuse, neglect, or accident. This warranty does

not apply to any damage to the unit that is the result of improper installation or maintenance, or to any unit that

has been operated or maintained in any way contrary to the operating or maintenance instructions specified in

Thermo NESLAB’s Instruction and Operation Manual. This warranty does not cover any unit that has been altered

or modified so as to change its intended use.

In addition, this warranty does not extend to repairs made by the use of parts, accessories, or fluids which are

either incompatible with the unit or adversely affect its operation, performance, or durability.

Thermo NESLAB reserves the right to change or improve the design of any unit without assuming any obligation

to modify any unit previously manufactured.

THE FOREGOING EXPRESS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR

IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OR MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE.

Thermo NESLAB’S OBLIGATION UNDER THIS WARRANTY IS STRICTLY AND EXCLUSIVELY LIMITED TO

THE REPAIR OR REPLACEMENT OF DEFECTIVE COMPONENT PARTS AND Thermo NESLAB DOES NOT

ASSUME OR AUTHORIZE ANYONE TO ASSUME FOR IT ANY OTHER OBLIGATION.

Thermo NESLAB ASSUMES NO RESPONSIBILITY FOR INCIDENTAL, CONSEQUENTIAL, OR OTHER DAM-

AGES INCLUDING, BUT NOT LIMITED TO LOSS OR DAMAGE TO PROPERTY, LOSS OF PROFITS OR

REVENUE, LOSS OF THE UNIT, LOSS OF TIME, OR INCONVENIENCE.

This warranty applies to units sold in the United States. Any units sold elsewhere are warranted by the affiliated

marketing company of Thermo NESLAB Instruments, Inc. This warranty and all matters arising pursuant to it

shall be governed by the law of the State of New Hampshire, United States. All legal actions brought in relation

hereto shall be filed in the appropriate state or federal courts in New Hampshire, unless waived by Thermo

NESLAB.

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