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NESLAB EX Series

Thermo Scientific NESLAB EX Series Installation, Operation And Maintanance Manual

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Page 1
Thermo Scientific NESLAB EX Series
Bath/Circulator
Installation
Operation
Basic Maintenance
Visit our Web site at:
http://www.thermo.com/tc
Product Service Information, Applications Notes, MSDS Forms, e-mail.
Voice Info: (800) 258-0830
Page 2
Thermo Fisher Scientific
Sales, Service, and Customer Support
25 Nimble Hill Road Newington, NH 03801 Tel : (800) 258-0830 or (603) 436-9444 Fax : (603) 436-8411 www.thermo.com/tc
25 Nimble Hill Road Newington, NH 03801 Tel: (800) 258-0830 Sales: 8:00 am to 5:00 pm Service and Support: 8:00 am to 6:00 pm Monday through Friday (Eastern Time) Fax: (603) 4 36-8411 service.tc.us@thermofisher.com
Dieselstrasse 4 D-76227 Karlsruhe, Germany Tel : +49 (0) 721 4094 444 Fax : +49 (0) 721 4094 300
Building 6, No. 27 Xin Jinqiao Rd., Shanghai 201206 Tel : +86(21) 68654588 Fax : +86(21) 64457830 info. china@thermofisher.com
Statement of Copyright
Copyright © 2007 Thermo Fisher Scientific. All rights reserved.
This manual is copyrighted by Thermo Fisher Scientific.
Users are forbidden to reproduce, republish, redistribute, or resell any materials from this manual in either machine-readable form or any other form.
Page 3
Table of Contents
Preface
Compliance ..............................................................................................................2
WEEE/RoHS.............................................................................................................2
Unpacking ................................................................................................................2
After-sale Support ....................................................................................................3
Warranty................................................................................................................... 3
Feedback................................................................................................................. 3
Section I Safety
Warnings.................................................................................................................. 4
Section II General Information
Quick Reference Operating Procedures.................................................................6
Description............................................................................................................... 7
Specifications...........................................................................................................7
Section III Installation and Operation
Site .........................................................................................................................11
Electrical Requirements......................................................................................... 11
Plumbing Requirements ........................................................................................13
Tap Water Cooling Connections............................................................................14
Fluids .....................................................................................................................16
Filling Requirements..............................................................................................16
Controller (Digital One/Digital Plus) ...................................................................... 17
Start Up/Shut Down................................................................................................19
Setup/Tuning Loop ................................................................................................21
Controller (Digital Plus) .........................................................................................22
Computer Setup Loop ...........................................................................................24
Timer Setup Loop ..................................................................................................25
Offset Setup Loop ..................................................................................................26
Analog A I/O Port - Optional................................................................................... 27
High Temperature Cutout ......................................................................................28
Accessories............................................................................................................ 29
Section IV Basic Maintenance
Reservoir Fluid ......................................................................................................35
Reservoir Cleaning ................................................................................................35
Algae ...................................................................................................................... 35
Internal Temperature Sensor (rtd1) Calibration .................................................... 36
External Temperature Sensor (rtd2) Calibration ................................................... 37
Optional Analog Port/Calibration - Optional..........................................................38
Section V T roubleshooting
Error Codes ........................................................................................................... 39
External Sensor Connector ...................................................................................40
Checklist.................................................................................................................41
Service Assistance.................................................................................................42
Controller PID Values.............................................................................................42
BOM Decoder ........................................................................................................42
Displaying Software Version Number ....................................................................43
Appendix A Fluids Appendix B NC Serial Communications Protocol Appendix C International Quick Reference Guide W ARRANTY
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Compliance
WEEE/RoHS
Preface
Listed to:
UL 61010-1 2nd Edition CSA C22.2 #61010.1 2nd Edition
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 Mark on the rear of the unit. The testing has demonstrated compliance with the following directives:
LVD, 73/23/EEC Complies with IEC/EN61010-1 EMC, 89/336/EEC IEC/EN61326-1 For any additional information, refer to the Declaration of Conformity that
shipped with the unit.
This product is required to comply with the European Union’s Waste Electrical & Electronic Equipment (WEEE) Directive 2002/96/EC. It is marked with the following symbol:
Unpacking
Thermo Fisher Scientific has contracted with one or more recycling/disposal companies in each EU Member St ate, and this product should be disposed of or recycled through them. Further information on Thermo Fisher Scientific’s compliance with these Directives, the recyclers in your country , and information on Thermo Scientific products which may assist the detection of substances subject to the RoHS Directive are available at: www.thermo.com/WEEERoHS
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 contact the transportation company and file a damage claim. Under ICC regulations, this is your responsibility.
Out of Box Failure
An Out of Box Failure is defined as any product that fails to operate in con­formance with sellers published specifications at initial power up. The unit must be installed in accordance with manufacturer's recommended operating conditions within 30 days of shipment from the seller.
Any product meeting the definition of an Out of Box Failure must be packed and shipped back in the original packaging to Thermo Fisher Scientific for replace­ment with a new unit; Seller to pay the cost of shipping. Customer must receive a Return Material Authorization (RMA) from Thermo Fisher prior to shipping the unit.
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Page 5
After-sale Support
Thermo Fisher Scientific Corporation is committed to customer service both during and after the sale. If you have questions concerning the unit operation, contact our Sales Department. If your unit fails to operate properly, or if you have questions concerning spare parts or Service Contracts, contact our Service Department. See the back side of the cover for contact information.
Before calling, please obtain the following information:
- unit BOM number_________________________________
- unit serial number ________________________________
- unit software version ______________________________
- voltage of power source ____________________________
The unit’s BOM number and serial number are printed on the name plate label located on the rear of the unit. See page 42 for instructions on how to decode your unit's BOM number. See page 43 for instructions on how to display the software version.
Warranty
Feedback
BOM#: XXXXXXXXXXXX
S/N: XXXXXXXXX
XXX VOLT XX HZ X PH X.X AMP
Thermo Scientific NESLAB EX units have a warranty against defective parts and workmanship for 24 months from date of shipment. See back page for more details.
We appreciate any feedback you can give us on this manual. Please e-mail us at neslabmanuals@thermofisher.com. Be sure to include the manual part number and the revision date listed on the front cover.
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Page 6
Warnings
Section I Safety
Warnings are posted throughout the manual. These warnings are designated by an exclamation mark inside an equilateral triangle and text highlighted in bold. 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.
The lightning flash with arrow symbol, within an equilateral triangle, is intended to alert the user to the presence of non-insulated "dangerous voltage" within the unit's enclosure. The voltage may be of significant magnitude to constitute a risk of electrical shock.
This label, engraved into the front of the tank lip, indicates the presence of hot surfaces.
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.
Transport the unit with care. The units weigh approximately: EX-7, 27 pounds (12 kilograms); EX-10, 32 pounds (15 kilograms); EX-17, 36 pounds (16 kilograms); EX-35, 53 pounds (24 kilograms). Units should be transported with equipment designed to lift these weights.
Observe all warning labels. Never remove warning labels. Never operate damaged or leaking equipment. Never operate the unit without bath fluid in the bath. The user is responsible for the fluid used. Never use pure ethylene
glycol as a bath fluid, the flash point of 100% ethylene glycol is 111°C. 100% ethylene glycol may produce flammable vapors that can be ignited by an open flame or an ignition source. When mixed with water, ethylene glycol is not flammable. Also, at high temperatures pure ethylene glycol may produce hazardous vapors.
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.
Always empty the bath before moving the unit. Never operate equipment with damaged line cords. Refer service and repairs to a qualified technician.
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Indicates heater status. See page 17.
General Information
Section II General Information
Press to start/stop the unit. See page 17.
Indicates the controller is displaying the setpoint. Press the arrow buttons to change the value. See page 17.
Press to mute the alarm. See page 22. Digital Plus controller only.
Press to select external sensor. See page 22. Digital Plus controller only.
Indicates the controller is displaying the unit's low temperature alarm setpoint. Press the arrow buttons to change the value. See page 17.
Press to select the serial communication mode. See page 22. Digital Plus controller only.
Controller. See page 17.
Press to select the timer function. See page 23. Digital Plus controller only.
High Temperature Cutout. See page 28.
Press to change the displayed value. See page 17.
Press to sequence through the three indicators and accept the displayed value. See page 17. NOTE: None of the three setpoint indicators are visible unless this key is pressed.
Press to select the
temperature offset mode. See page 23.
Digital Plus controller only.
Indicates the controller is displaying the high temperature alarm setpoint. Press the arrow buttons to change the value. See page 17.
Optional External Probe Connector. Digital Plus controller only. See page 40 .
Analog Output Connector. Digital Plus controller only. See page 27.
Reservoir. See page 16.
Autorefill connection.
RS-232/RS-485 connections. See Appendix B. Digital Plus controller only.
1/8" OD Autorefill fluid connection. See page 29.
1/4" MPT Pumping
Supply Connection. See page 13.
1/4" MPT Pumping Return Connection. See
page 13.
Drain. See page 13.
Tap water cooling. See page 14.
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Circuit Breaker(s).
Power connection. See page 11.
Page 8
Quick Reference Operating Procedures
Installation
Locate the unit on a sturdy work area. Ambient temperatures should be inside the range of +50°F to +104°F (+10°C to +40°C). The maximum operating relative humidity is 80%.
Never place the unit in a location where excessive
General Information
heat, moisture, or corrosive materials are present. Make sure the voltage of the power source meets
the specified voltage, ±10%. The pump connections are located at the rear of the pump box and are labelled and . These
connections are angled upward so the recirculating fluid will drain back into the reservoir when the hoses are disconnected. Both connections are capped with stainless steel serrated plugs.
The pump lines have ¼" MPT for mating with standard plumbing fittings. For your convenience stainless steel adapters, ¼" FPT to 3/8" O.D. serrated fitting, are provided.
The bath work area has a high and low level marker to guide filling. The markers are 1 inch horizontal slits located in the center of the stainless steel baffle separating the work area and the pump assembly. The correct fluid level falls between these two markers. The unit will not start if the fluid level is below the lower slit.
Temperature Adjustment
To display the temperature setpoint, press on the controller. The indicator will illuminate and
the display will flash the current setpoint value. To adjust the temperature setpoint, press the arrow buttons until the desired temperature setpoint is
indicated. Press again to confirm the change. The display will rapidly flash the new value for a
short time and then return to the recirculating fluid temperature.
Periodic Maintenance
Periodically inspect the reservoir fluid. If cleaning is necessary, flush the reservoir with a cleaning fluid compatible with your application.
Before changing the reservoir fluid ensure it is at a safe handling temperature.
Operation
Before starting the unit, double-check all electrical and plumbing connections. Make sure the bath is properly filled with fluid.
To start the unit, press . To turn the unit off
press again.
The LED indicates the status of the heater. It illuminates to indicate the heater is on.
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Page 9
Description
Specifications
Process Fluid
Temperature Range
The Thermo Scientific NESLAB EX Bath/Circulators are designed to provide temperature control for applications requiring a fluid work area or pumping to an external system.
Units consist of a circulation pump, seamless stainless steel bath, work area cover, and a microprocessor temperature controller.
EX 7 EX 10 EX 17 EX 35
2
Ambient +12°C to +200°C
General Information
Temperature Stability
Pump Capacity
Heater (Watts)
115V/60 Hz Models 230V/50 Hz Models
100V/50-60Hz Models
Bath Work Area
(W x L x D)
Inches
Centimeters
3
4
5
6 5/8 x 7 x 6
16.8 x 17.8 x 15.2
±0.01°C
Meters Feet
4.9 16
e
3.7 12
r
u
s
s
e
r P
2.4 8
1.2 4
0.8 1.6 2.4 3.2 4.0 Gpm
Flow
3691215Lpm
800 1600
2000 2000
800 1200
8 ¾ x 8 1/8 x 6
22.4 x 20.6 x 15.2
8¾ x 8 1/8 x 9
22.4 x 20.6 x 22.9
8 ¾ x 15 ½ x 12
22.4 x 39.4 x 30.5
Bath Volume
Gallons
Liters
Weight
6
Pounds
Kilograms
1.9
7.2
27
12.2
1. Specifications subject to change.
2. Above 80°C, baths are tested with silicone oil. This fluid is known to release a formalde­hyde vapor (which is carcinogenic) above 150°C.
3. 37°C, 45°C, 60°C bath temperature. 20°C ambient. Measured at the center of the work area, stable ambient. Sea level. For 37°C the work area cover was off, for 45°C and 60°C the work area cover was on. No external flow. For some applications, agitation and stability above ambient may be improved by connecting a small length of hose between the pump connections on the rear of the unit.
4. 20°C ambient. 20°C bath temperature using water. Pump fully loaded. Sea level.
5. See next page for additional dimensions.
6. Add approximately 3 pounds (1.4 kilograms) for shipping weight.
3.0
11.3
32
14.5
4.8
18.1
36
16.3
9.6
36.3
53
24.0
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Page 10
Unit Dimensions (inches)
C
General Information
30°
15/8
F
7
/8
3¼
15/8
D
23/8
B
Rear View Side View
Unit Dimensions
Dimension A Dimension B Dimension C Dimension D
Crate Dimensions (D x W x H)
105°
EX 7 EX 10 EX 17 EX 35
14 5/8 14 5/8 17 5/8 20 5/8
9 1/4 11 3/8 11 3/8 11 3/8
8 3/8 8 3/8 11 3/8 14 3/8
½
17/8
1½
19 19 3/4 19 3/4 26 7/8
26½ x 18 x 33½ 31¼ x 15½ x 26½
A
Time to Temperature
115V/60 Hz Models
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Page 11
Time to Temperature
115V/60 Hz Models
230V/50 Hz Models
General Information
230V/50Hz Models
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Page 12
Blank Page.
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Page 13
Site
Electrical
Requirements
Section III Installation and Operation
Ambient Temperature Range +50°F to +104°F (+10°C to +40°C)
Maximum Operating Relative Humidity 80%.
Overvoltage Category II
Installation and Operation
Pollution Degree 2
Never place the unit in a location where excessive heat, moisture, or corrosive materials are present.
The unit construction provides protection against the risk of electrical shock by grounding appropriate metal parts. The protection may not function unless the power cord is connected to a properly grounded outlet. It is the user's responsibility to assure a proper ground connec­tion is provided.
The user is responsible to ensure that the power cord provided meets local electrical codes. If not, contact qualified installation personnel.
The unit is intended for use on a dedicated outlet. The EX has an internal circuit protection that is equivalent (approx.) to the branch circuit rating. This is to protect the EX, and is not intended as a substitute for branch circuit protection.
Power Cord Set
230 Volt, 50 Hertz units do not come with a power cord set, To select the proper power cord, follow these guidelines:
The cord set must consist of a plug, cable and receptacle.If the unit is rated greater than 12 Amps, use a cord set rated for 20A.If the unit is rated less than 12 Amps, use a cord set rated for 15A.The cord set must be approved by local electrical authority or other
acceptable agency.
Ensure the plug is compatible with your local outlets and receptacles.
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%.
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Page 14
The following power options are available:
Installation and Operation
Unit Amps
1
Breaker Power Inlet
EX 7/10 115/60/1 9 15A IEC 320-C-13
100/50-60/1 10 15A IEC 320-C-13
230/50/1 10 15A IEC 320-C-19
EX 17/35 115/60/1 16 20A IEC 320-C-19
100/50-60/1 16 20A IEC 320-C-19
230/50/1 10 15A IEC 320-C-19
1. Average Amp draw.
Unit Type
1
Amperage Plug Type
115/60/1 15 NEMA 5-15 115/60/1 20 NEMA 5-20 100/50-60/1 15 NEMA 5-15
100/50-60/1 20 NEMA 5-20 230/50/1 All Country Specific
1. Power cord length, if supplied, is 2 meters.
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Page 15
Plumbing Requirements
Ensure the unit is off before connecting tubing to the unit.
To prevent damage to the plumbing lines, always support the 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 outlet) and (pump inlet). These connections are bent upward
so the recirculating fluid will drain back into the reservoir when the hoses are disconnected. Both connections are capped with stainless steel serrated plugs.
The pump lines have ¼" MPT for mating with standard plumbing fittings. For your convenience stainless steel adapters, ¼" FPT to 3/8" O.D. serrated fitting, are provided. (To assure proper fit, they should be installed using 1½ turns of Teflon® tape around the threads.)
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 to prevent loss of cooling capacity. Tubing and insulation are available from Thermo Fisher. Contact our Sales Department for more information (see Preface, After-sale Support).
It is important to keep the distance between the unit and the external system as short as possible, and to use the largest diameter tubing practical. Tubing should be straight and without bends. If diameter reductions must be made, make them at the inlet and outlet of the external system, not at the unit.
If substantial lengths of lines are required, they should be pre-filled with bath fluid before connecting them to the unit. This will ensure that an adequate amount of fluid will be in the bath once it is in operation.
Installation and Operation
Drain Ensure the bath fluid is at a safe handling temperature before draining
the unit.
The unit is equipped with a drain located at the back of the unit labelled . To drain the reservoir attach a hose to the barb and loosen the fitting. The
fitting has a stop to prevent it from coming off.
Pumping
The pump is designed to deliver a flow of 15 liters per minute (4 gallons per minute) at 0 feet head. To prevent external circulation, the pump inlet and outlet lines on the rear of the unit are capped. The caps must be removed when external circulation is required.
To properly secure external hose connections to the unit, wrap Teflon® tape around the pipe line threads before installation. Once the hose connections are made, the hoses must be properly plumbed to an external system. It is
important the bath is not in operation until all plumbing is complete.
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Page 16
Tap Water
Cooling Coils
Installation and Operation
The unit is equipped with a cooling coil located behind the stainless steel baffle in the bath, see page 5. The coil is useful for maintaining near-ambient tem­peratures, or when cooling from elevated temperatures. Temperature stability can also improve by circulating cold fluid through the coil. For best results, the fluid should be at least 5°C below the temperature setpoint. The required fluid flow rate depends on the type of fluid, the setpoint, and the desired stability.
The plumbing connections for the cooling coil are 3/8 inch OD stainless steel tubes located on the lower rear of the unit. These connections will accept
3
/8 inch or 5/16 inch ID tubing. Tubing is available from Thermo Fisher.
Connect the cold fluid source to either fitting. Connect the other fitting to the cold fluid return (or drain if tap water is being used).
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Page 17
Circulating to an open container
Outlet
Levelling Device
Inlet
Installation and Operation
Bath (Rear View)
Open Container
A stainless steel leveling device is available to aid circulation to an open vessel. Contact our Sales Department for more information (see Preface).
Support the leveling device over the open container with a ringstand. Stagger the tubes in the leveling device so one tube is submerged in the vessel fluid, and the other tube is level with the fluid surface. Connect the deeper tube to the pump outlet and the shorter tube to the pump inlet.
Adjust the flow rate using the accessory flow control valve connected to the pump outlet, or by partially restricting the outlet tubing. When properly adjusted, the pump inlet will draw an occasional air bubble to prevent over flow, and the pump outlet will force fluid through the submerged tube to prevent aeration of the vessel.
To avoid siphoning the bath work area when the unit is shut off, lift the leveling device out of the vessel and above the level of the unit.
Circulating through two closed-loops
Pump Box
System #1
Bath
Work Area
System #2
Bath (Top View)
The pump can be used to circulate through two closed-loop systems. Connect the shortest practical length of flexible tubing from the pump outlet to the inlet of external system #1. Connect the outlet of system #1 directly into the bath work area. Connect tubing from the bath work area to the inlet of system #2. Connect the outlet of system #2 to the pump inlet.
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Page 18
Fluids
Installation and Operation
The user is always responsible for the fluid used. Never use flammable or corrosive fluids with this unit. The use of chlorine or sodium hypochlorite in the baths will cause pitting that could damage the heater coils.
Handling and disposal of liquids other than water should be done in accordance with the fluid manufacturers specification and/or the MSDS for the fluid us
For fluid selection consider application requirements, operating temperature range, material compatibility, safety concerns, and environmental issues.
®
Wetted materials of bath include; 316 and 304 Stainless steels, Ryton
(PPS),
Teflon®(PTFE) and Ethlyene-Propylene rubber (EPDM).
Deionized (up to 18 MOhmcm) and distilled water are recommended to control corrosion and algae bloom. See Water Quality Standards and Recommenda­tion in Appendix A.
Filling
Requirements
Ethylene glycol and water, propylene glycol and water, silicone oil, and filtered water are acceptable fluids. See Appendix A for additional information.
Please call Thermo Fisher customer service to discuss high temperature fluid selections. However, we will often refer you to chemical companies specializ­ing in heat transfer fluids.
Ensure the drain on the back of the unit is closed before filling the unit.
The bath work area has a high and low level marker to guide filling. The markers are 1 inch horizontal slits located in the center of the stainless steel baffle separating the work area and the pump assembly. The correct fluid level falls between these two markers.
NOTE: The unit is equipped with a reservoir level float switch. The switch prevents the unit from starting if the fluid is below the lower slit.
When pumping to an external system, keep extra fluid on hand to maintain the proper level in both the circulating lines and the external system.
Avoid overfilling, fluids expand when heated.
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Page 19
Controller
(Digital One/Digital Plus)
The controller controls temperature using a Proportional-Integral-Derivative (PID) algorithm. It is designed with self-diagnostic features and easy to use operator interface. Two controller options are available: Digital One and Digital Plus. The information on the following two pages applies to both controllers. The information on the following two pages applies to both controllers.
Installation and Operation
Yes
No
Digital One Controller
ON/OFF. Use this key to toggle the unit on or off and to clear error mes­sages.
SCROLL . Use this key
to scroll through the controller's LEDs. It is also
used to save new changes.
YES/ARROW. Use this key to increment numerical values when setting values and to accept new settings.
NO/ARROW. Use this key to decrement numerical values when setting values and to abort new settings.
Indicates heater status. It illuminates to indicate the heater is adding heat from the bath fluid. The indicator is off when heat is not being added.
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Page 20
Installation and Operation
NOTE: The following indications are not visible until is depressed.
Setpoint. Indicates the controller is displaying the current setpoint.
Low Temperature Alarm. Indicates the controller is displaying the current
low temperature alarm.
High Temperature Alarm. Indicates the controller is displaying the current high temperature alarm.
To adjust the displayed value use the arrow buttons. Pressing an arrow button will cause the display to stop flashing and to indicate the new setpoint value. Save the change by pressing SCROLL. The new setpoint value will rapidly flash for two cycles and then the controller will return to the reservoir fluid tempera­ture display.
If SCROLL is not pressed within 60 seconds the change will time out and revert to the original setpoint. The controller will automatically return to the reservoir fluid temperature display.
NOTE: You can not adjust the setpoint closer than 0.1°C of either temperature limit, and you can not adjust either temperature limit within 0.1°C of the setpoint. Trying to do so will cause the indicator to flash and, on Digital Plus controllers, the alarm to beep.
On units with the Digital Plus controller, pressing the Mute button prior to pressing SCROLL will abort any changes and return to the reservoir fluid temperature display.
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Page 21
Start Up/Shut Down
(Digital One/Digital Plus)
Installation and Operation
Controller
Pre-Start
Starting
Setpoint
Before starting the unit, double check all electrical and plumbing connections.
Ensure the bath reservoir is properly filled. The unit will not start if the reservoir fluid level is below the lower horizontal slit.
The unit can be configured for automatic restart. If the unit shuts down as a result of a losing power, once power is restored the unit will restart. See Setup/Tuning Loop on page 21 to enable this feature.
Press . The controller does a self-test (sequences through the LEDs, and Digital Plus units momentarily sound the alarm), then quickly displays the
setpoint before displaying the reservoir fluid temperature. The pump will start.
NOTE: If the unit's recirculating fluid is outside either temperature limit, the unit will start but the appropriate indicator will flash until the fluid is within the limit.
To display/change the setpoint press until illuminates. The display will flash the current setpoint value. Use the arrow buttons to change the value.
The controller will not allow you to enter a setpoint closer than 0.1°C of either temperature alarm setting, see next page. Attempting to causes the indicator to flash and, on Digital Plus controllers, sounds the alarm.
Once an arrow button is depressed starts to flash. If an arrow button is not pressed within 10 seconds the display will return to the reservoir temperature.
On units with the Digital Plus controller, pressing Mute prior to pressing SCROLL will abort any change and return you to the fluid temperature display.
Once the desired setpoint is displayed, press again to confirm the change. The display will rapidly flash the new value twice and then return to the
recirculating fluid temperature. If the new value is not confirmed within 60 seconds the display will return to the fluid temperature and ignore any change.
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Page 22
Low Temp Alarm
To display/change the low temperature alarm setting press until illuminates. The display will flash the current limit value. Use the arrow buttons
to change the value. You can not set the alarm closer than 0.1°C below the setpoint. Attempting to causes the indicator to flash and, on Digital Plus controllers, sounds the alarm.
On units with the Digital Plus controller, pressing Mute prior to pressing SCROLL will abort any change and return you to the fluid temperature display.
Once an arrow button is depressed starts to flash. If an arrow button is not pressed within 10 seconds the display will return to the current reservoir
temperature.
Installation and Operation
High Temp Alarm
Once the desired setting is displayed, press again to confirm the change. The display will rapidly flash the new value twice and then return to the recircu-
lating fluid temperature. If the new value is not confirmed within 60 seconds the display will return to the fluid temperature and ignore any change.
To display/change the high temperature alarm setting press until illuminates. The display will flash the current setting value. Use an the arrow
buttons to change the value. You can not set the alarm closer than 0.1°C above the setpoint. Attempting to causes the indicator to flash and, on Digital Plus controllers, sounds the alarm.
On units with the Digital Plus controller, pressing Mute prior to pressing SCROLL will abort any change and return you to the fluid temperature display.
Once an arrow button is depressed starts to flash. If an arrow button is not pressed within 10 seconds the display will return to the current reservoir
temperature.
Once the desired limit is displayed, press again to confirm the change. The display will rapidly flash the new value twice and then return to the recircu-
lating fluid temperature. If the new value is not confirmed within 60 seconds the display will return to the fluid temperature and ignore any change.
Stopping
To turn the unit off, press . The pump will stop.
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Page 23
Setup/Tuning Loop
(Digital One/Digital Plus)
The Setup/Tuning Loop is used to tune the controller's PID parameters (HEAt); enable/disable auto restart (AStrt); determine how the unit will react when a fault occurs (FAUlt) — either shut down (on) or continue to run (oFF); and to configure the temperature display to indicate to a tenth or a hundredth of a degree (rES).
Installation and Operation
To enter the loop you must be displaying the reservoir fluid temperature, press and hold and then press . The display will indicate tunE. Use the arrow keys to sequence through the loop and to change a display. Use to confirm any changes.
Thermo Fisher recommends that only a qualified technician change PID parameters. Incorrect PID values will hamper unit performance. See page 42 for factory preset PID values.
Factory preset = off
Factory preset = off
Factory preset = 0.1
Changes made in the Tuning/Setup Loop take affect when
is pressed at
Yes
the StorE prompt. Pressing No at the prompt aborts all changes.
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Page 24
Controller
(Digital Plus)
Mute
Installation and Operation
Sensor
Alarm. If the alarm sounds, use this button to toggle the alarm off and on. If the cause of the alarm is cleared but then reoccurs, the alarm will sound again.
The button is also used to abort changes to the setpoint and temperature alarms. It is also used to abort changes when configuring the unit for external probe, serial communication, timer operation, or offset mode.
NOTE: Pressing and holding any of the following buttons for five seconds takes you to their calibration or setup loop.
External Probe. Pressing the Sensor button displays the external probe temperature and lights the LED indicating that the bath is monitoring and controlling to this temperature. The unit will continue to monitor the internal bath temperature to ensure the bath is running in a safe operating mode.
NOTE: If there is no sensor attached (or the circuit is open), or serial communi­cations is enabled, the button will flash, and the alarm will beep three times. The display will momentarily show an error message and then return to the reservoir fluid temperature.
Computer
NOTE: The temperature display may drift for up to 10-15 seconds when transitioning between temperature sensors. This is normal operation.
Serial Communication. Pressing Computer enables/disables the serial communications mode of operation. In this mode all changes to the setpoint, alarm limits, etc. must now be sent by a remote device using RS-232 or RS-485 protocols. You can still view all settings locally but cannot alter them.
Once enabled, the Computer LED will flash when sending and receiving signals. See Appendix B for additional information.
You can also turn the unit off by pressing but the unit will remain in the serial communication mode. To restart, send another start command.
NOTE: If the unit is shut down in the serial communication mode and you need to start the unit using the local controller, simultaneously depress and hold both arrow keys for approximately 10 seconds. The display will then show the
internal probe temperature, and the alarm will sound. Press the
Computer
LED
and turn off the LED and disable serial communications. Turn the controller off using . You can now start and operate the unit with the keypad.
To setup for serial communication see Computer Setup Loop on page 24.
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Page 25
Timer
Offset
Timer. Pressing the Timer button enables/disables the Timer function of the bath. You can define the current time, a turn-on time, and a turn-off time.
To setup the bath for timer operation see Timer Setup Loop on page 25.
If the bath is turned off using with the timer mode enabled, the Timer LED will go out and the timer mode will be disabled. With the bath off, you have to
press the Timer button to enable the timer mode and light the LED.
NOTE: Enabling serial communications; time-on not defined; time-off not defined; or clock not set, causes an error condition and disables the TIMER mode. In this case the button will flash, the unit will beep three times, and the display will momentarily show an error message.
If a power disruption occurs, the timer mode is disabled. The Timer Setup Loop will have to be used to restore the settings.
Temperature Offset Mode. Pressing the Offset button, with the bath on, enable/disables the temperature offset mode. This mode changes the tempera­ture displayed on the bath a user defined amount. The LED will be lit when this mode is enabled indicating that the temperature displayed is an offset value. NOTE: The temperature offset only affects the displayed value when the offset mode is enabled, the other setpoint values still dictate unit performance.
Installation and Operation
To setup the bath for offset mode operation see Offset Setup Loop on page 26. If you press the Offset button when an offset has not been previously defined, or if serial communications is enabled, the button will flash, the unit will beep three times, and the display will momentarily show an error message. In either case the function can not be enabled.
NOTE: Use this feature only when the bath is at a stable temperature.
In either local or Computer mode with offset disabled, the unit controls to and displays the calibrated value for the internal or external probe, whichever is selected.
In local mode with offset enabled, the unit still controls to the calibrated value, not the offset value, for the internal or external probe. The display shows the calibrated value with the offset value added.
In Computer mode with offset enabled, the unit still controls to the calibrated values, not the offset value , for the internal or external probe. The display shows the calibrated value with the offset value added. If you send a signal to the bath to display internal or external probe temperatures, the calibrated value is returned. If you send a signal to change the display value the offset value is returned.
- 23 -
Page 26
Computer Setup Loop
(Digital Plus Only)
NOTE: The Computer Setup Loop is not available if the serial communications
mode is enabled. Review/change the settings before entering the mode.
Computer
Installation and Operation
XX.X
The Computer Setup Loop is used to set the serial communications protocol parameters. With the bath on, press and hold the Computer button for five seconds. The controller will display SErL. Press the arrow buttons to toggle between 232 and 485. Press the Computer button to hold the protocol and advance you through the loop to adjust the remaining parameters. Press the arrow buttons to adjust any parameter. When StorE is displayed press YES to accept any new values, NO to abort them.
If the Computer button is not pressed for 60 seconds the function will time-out and the changes will not be saved. Pressing the Mute button will also exit the Computer Setup Loop and return you to the reservoir fluid temperature display.
Once enabled, the Computer LED will flash when sending and receiving signals. See Appendix B for additional serial communication information.
Hold for 5 seconds
SErL
Computer
232
485
A In
Yes
No
Factory preset = RS232
A In = Analog In, Optional See page 27.
Computer
19200
9600
bAud
Computer
Addr
Computer
No
StorE
Accept All Changes
Yes
4800 2400 1200
600 300
1 to 100
Factory preset = 19200
Yes
No
Factory preset = 1
Yes
(RS-485 only)
No
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Page 27
Timer Setup Loop
(Digital Plus Only)
Timer
To set the timer, with the bath on, press and hold the Timer button for five seconds to access the controller's Timer Setup Loop. The display will indicate diSP. Use the arrow buttons to select the desired clock display. Press the Timer button and the controller will display cloc. Use the arrow buttons to display the correct time.
Press the Timer button and the controller will display t-On. Press the arrow buttons to set the desired turn-on time. Press the Timer button and the controller will display t-OFF. Press the arrow buttons to set the desired turn-off time. Pressing the Timer button after entering the clock time will display StorE. Press YES to accept the values, NO to abort them.
If the Timer button is not pressed for 60 seconds the function will time-out and the changes will not be saved. Pressing the Mute will also exit the Timer Setup Loop and return you to the temperature display.
If the bath is turned off using with the timer mode enabled, the Timer LED will go out and the timer mode will be disabled. With the bath off, you have to
press the Timer button to enable the timer mode and light the LED.
NOTE: Enabling serial communications disables the
TIMER mode. If an error condition exists: serial communications enabled; time-on not defined; time-off not defined; or clock not set, the unit will beep and
will not enable the function. The display will then indicate the reservoir fluid temperature.
If a power disruption occurs, the timer mode is disabled. The Timer Setup Loop will have to be used to restore the settings.
Installation and Operation
- 25 -
Page 28
Offset Setup Loop
(Digital Plus Only)
NOTE: Use this feature only when the bath is at a stable temperature.
Press the Offset button to display the current offset temperature value and illuminate the LED.
Offset
Installation and Operation
To change the value press and hold the Offset button for five seconds to enter the controller's Offset Setup Loop. The bath will alternately flash oFSEt with the current temperature.
Use the arrow buttons to change the value. For example, if the bath is at +40°C and the desired offset is +5°C, change the display to +45°C. Press the Offset button once the desired offset is displayed. (If the Offset button is not pressed the function will time-out and the change will not be saved.) The display will show StorE. Press YES to accept the value, NO to abort it.
If, after pressing YES, the display returns to +40°C, not +45°C, the Offset button was not depressed when you entered the Offset Setup Loop. Press the Offset button to display the offset temperature and illuminate the LED.
XX.X
Offset
OFSEt
Offset
Hold for 5 seconds
xxx.x
Yes
No
No
StorE
Accept All Changes
Yes
NOTE: Offset only changes the display of the enabled probe. Setpoint and alarm values will display the non-offset value.
If you press the Offset button when an offset is 0 or not defined, or if serial communications is enabled, the button will flash, the unit will beep three times, and the display will momentarily show an error message (Er53 for offset undefined, Er54 for serial comm on). In either case the function can not be enabled.
With offset disabled, the unit controls to and displays the calibrated value for the internal or external probe, whichever is selected.
With offset enabled, the unit still controls to the calibrated value, not the offset value, for the internal or external probe. The display shows the calibrated value with the offset value added.
In Computer mode if you send a signal to the bath to display internal or external probe temperatures, the calibrated value is returned. If you send a signal to change the display value the offset value is returned.
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Page 29
Analog Port - Optional (Digital Plus Only)
A I/O Analog Port
The 15-pin female receptacle located on the rear of the controller is used for optional analog interface.
The analog signal is setup using the unit's Computer Setup Loop. With the bath on, press and hold the Computer button for five seconds. The controller will display SErL. If needed, press the arrow buttons to toggle between 232,
485, and A In. With A In displayed, press the Computer button again until StorE is displayed, press YES. Use the Computer button to enable/disable the analog signal. The button will flash when A in is enabled.
Contact Ratings, Pins 1, 2, and 3
Maximum Voltage = 30 V AC/DC Maximum Current = 1 Amps @ 30 V Minimum permissible load 10uA, 10mVDC
Pin # Function
1 Status relay NO. Status relay pins 1 and 3 close on start up, and open
on stop and all errors.
Installation and Operation
2 Status relay NC. Status relay pins 2 and 3 open on start up, and close
on stop and all errors.
8 7 6 5 4 3 2 1
15 14 13 12 11 10 9
3 Status relay common 4- 5 Not used 6 Analog Ground. The analog ground is physically separated from the
power ground throughout the unit. To prevent offsets that result from ground currents, the analog and power grounds are only connected at the unit's power supply. Analog ground should only be used as a
reference pin.
7 Temp out. The fluid temperature, as measured by the enabled sensor,
can be read at this pin. The temperature scale is 10mV/°C, referenced
to analog ground, pin 6 (example: +150mV = +15.0°C). 8 Not used 9 Digital output ground, reference for pin 14. Digital output ground should
only be used as a reference pin. 10-13 Not used 1 4 Digital output +5VDC at 15mA max. 70mA max inrush current. This
power supply energizes on start up and de-energizes on stop and all
errors.
1 5 Setpoint in. The temperature setpoint can be controlled by applying a
known voltage to this pin. The temperature scale is 10mV/°C, refer-
enced to analog ground, pin 6 (example: +230mV = +23.0°C).
The analog output requires calibration, see page 38.
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Page 30
High Temperature Cutout (Digital One/Digital Plus)
Installation and Operation
Adjustable High Temperature Cutout
To protect your application, the adjustable High Temperature Cutout ensures the heater will not exceed temperatures that can cause serious damage to your unit. A single temperature sensor is located in the bath fluid. A High Temperature fault occurs when the temperature of the sensor exceeds the set temperature limit. The safety has a range of 0°C to 230±20°C.
In the event of a fault the unit will shut down and the controller will display HtC. The cause of the fault must be identified and corrected before the unit can be manually restarted.
The cutout is not preset and must be adjusted during initial installation. To set the cutout, locate the small black adjustment dial on the rear of the controller. Turn the dial fully clockwise and turn the power switch off then back on.
Start the unit. Adjust the setpoint for a few degrees higher than the highest desired fluid 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.
Before you can restart the bath it has to cool down a few degrees. Then, without moving the adjustment dial, turn the power switch off then back on.
NOTE: We recommend rechecking operation if the unit is moved.
High Temperature Cutout
Non-Adjustable High Temperature Cutout
For added safety, the unit also has a non-adjustable High Temperature Cutout. With fluid in the bath, it is set to trip at 225°C ±8°C.
If the bath is empty, the cutout has a typical trip point of 300°C. The heater temperature can continue to rise after the cutout trips up to approximately 314°C.
There will be no indication the High Temperature Cutout activated other than an audible click. The unit will continue to run but the heater will no longer operate. Service will be required.
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Page 31
Accessories (Digital One/Digital Plus)
Autorefill Accessory
The autorefill accessory attaches to the rear of the bath. The autorefill provides makeup water to replace bath fluid lost to evaporation, etc. It will require a tap water source. A reservoir level float switch and logic/signal are already installed in the bath.
•Attach the autorefill module to the rear of the bath with the two 8-32 screws.
•Attach the capillary tubing from the compression fitting on the top of the autorefill module to the autorefill inlet on the rear of the bath. Tighten all compression fittings.
•Attach a tap water supply line to the tap water inlet on the autorefill module. A compression fitting for 3/8” tubing is provided.
•Connect the control cable from the back of the control box to the side of the autorefill module as shown in the illustration.
•Connect the power supply from the power supply inlet on the side of the autorefill module to an appropriate power outlet.
When tap water is available, the bath is turned on, and the fluid reaches the lower 1 inch horizontal level indicator located in the reservoir the autorefill begins filling the bath. The autorefill shuts off when the fluid reaches the upper indicator, or if the bath is turned off.
NOTE: Power the Autorefill Accessory with an AC Adapter that is UL Listed with the following ratings:
- Class 2
Installation and Operation
- Input rated 100-240 VAC, 47-63 Hz, 0.4A
- Output rated 12VDC, 1.25A Max.
Autorefill Control Cable Attachment
Cap Tube
Tap Water Inlet
Autorefill Module
Description Part Number
100-115V/50/60Hz 611012000001 200-240V/50/60Hz, No line cord 611028000001
Power Supply Inlet
- 29 -
Page 32
Installation and Operation
Reservoir Overflow Device
The overflow device is designed to act as an automatic drain for the unit's reservoir. The assembly is stainless steel with the exception of the drain fitting which is Ryton®. The unit can still be drained as normal, but if the level reaches the middle of the tee it will begin to overflow out the bent tube.
•Drain the unit's reservoir.
•Remove and discard the stop screw from the bottom of the unit's drain housing.
•Remove the unit's drain fitting.
Vertical Tube
•Thread the overflow assembly into the drain housing. (You can remove the vertical tube assembly from the Swagelok® fitting if there is a clearance issue.)
Swagelok® Fitting
Drain Housing
•After threading the overflow assembly in as far as it goes, loosen it back out until the Swagelok® fitting is at the
Drain Fitting (Install finger tight)
top.
•Install one of the two supplied 4-40 x ¼” phillips head screws into
Overflow Assembly
the bottom of the drain housing where the stop screw use to be. (Make sure this screw is tight so that the assembly doesn’t turn and drain the tank.)
•Reinstall the vertical tube assembly into the Swagelok® if it was removed.
•Install the drain fitting into the end of the new assembly - finger tight.
•Install the other supplied 4-40 x ¼"phillips head screw into the bottom of the overflow assembly. (This prevents the drain fitting from falling off the unit.)
Description Part Number
EX 7 and EX 10 overflow device 126000000044
EX 17 overflow device 126000000045
EX 35 overflow device 126000000046
- 30 -
Page 33
Stainless Steel Test Tube Racks
The following Stainless Steel test tube rack assemblies are available:
Uni t Test Tubes (maximum) Size (mm) Part Number
EX 7 49 13 126000000040
EX 7 25 18 126000000041
EX 10/17/35 72 13 126000000042
EX 10/17/35 42 18 126000000043
Installation and Operation
EX 35 Stainless Steel Shelf Set
Thermo Fisher offers two accessory shelves for use in the EX-35 bath.
The EX 35's reservoir is 12" deep. The 6" shelf makes the bath effectively 6" deep. The 3" shelf makes the bath effectively 9" deep. The shelves can also be stacked making the reservoir effectively 3" deep.
The shelves are Stainless Steel and are simply positioned into the work area. The shelves are fully perforated to allow circulation throughout the bath area.
The smaller shelf is designed to nest inside the larger one for storage.
3" and 6" Shelves Thermo Fisher Scientific Part Number 126000000048
- 31 -
Page 34
Installation and Operation
The following accessories are also available from Thermo Fisher:
External Sensors (Digital Plus only)
Description Part Number
6"L X .187"DIA, 6' Lead, Stainless Steel probe 058520 18"L X .187"DIA, 6' Lead, Stainless Steel probe 058521
1.5"L X .187"DIA, 6' Lead, Stainless Steel probe 058522
1.5"L X .062"DIA, 6' Lead, Stainless Steel probe 058523 6"L X .187"DIA, 6' Lead, Teflon® probe 058524 6"L X .187"DIA, 15' Lead, Stainless Steel probe 126000000025 6"L X .187"DIA, 20' Lead, Stainless Steel probe 126000000029 6"L X .187"DIA, 30' Lead, Stainless Steel probe 126000000024
1.5"L X .187"DIA, 30' Lead, Stainless Steel probe 126000000033
GFCI* Breaker Line Cords (115V 60Hz units only)
Unit Description Part Number
15 Amp Units 125V/15A 4-6MA 126000000050 20 Amp Units 125V/20A 4-6MA 126000000051
RS-232/485 Communication Cables (Digital Plus only)
Description Part Number
10' Cable Assembly 083258
*Ground Fault Current Interrupter. An electrical safety device which opens a circuit upon observation of electricity leaking to ground through an undefined path, most likely a human being. GFCI receptacles are required by the NEC in many locations.
- 32 -
Page 35
Accessories
(Digital Plus Only)
RPC Remote Box
An RPC can control the bath from a remote location. It mirrors the controller displays; and has the ability to store and run up to 16 programs. It operates by sending and receiving information by RS-485 serial communication. It attaches to the unit by an RS-485 cable with 9-pin D subminature connectors.
The remote can be mounted to the wall with an included wall bracket, or it can be used on a desk top with the wall bracket removed.
HEAT
COOL
BATH ON
120.0°C
Typical RPC Display
MENU
SETPOINT
Description Part Number
RPC 100-115V/50/60Hz/1Ø 604012000401 (with NEMA 5-15P type plug)
Installation and Operation
RPC 100-240V/50/60Hz/1Ø 604028000401 (requires country specific line cord, not included)
10' Cable Assembly (included) 083258 25' Cable Assembly 426000000029 50' Cable Assembly 426000000030 75' Cable Assembly 426000000031 100' Cable Assembly 426000000032 200' Cable Assembly 426000000033
NOTE: Power the RPC with an AC Adapter that is UL Listed with the following ratings:
- Class 2
- Input rated 100-240 VAC, 47-63 Hz, 0.4A
- Output rated 12VDC, 1.25A Max.
- 33 -
Page 36
Blank Page.
- 34 -
Page 37
Service Contracts
Reservoir Fluid
Section IV Basic Maintenance
To avoid electrical shock, disconnect the mains cord prior to removing any access panels or covers.
Thermo Fisher Scientific offers on-site Service Contracts designed to provide extended life and minimal down-time for your unit. For more information, contact our Service Department (see Preface, After-sale Support).
Periodically inspect the reservoir fluid. If cleaning is necessary, flush the reservoir with a cleaning fluid compatible with your application.
The reservoir fluid should be replaced periodically. Frequency depends on the operating environment and time of usage.
Before changing the reservoir fluid ensure it is at a safe handling temperature.
Reservoir Cleaning
Algae
Maintenance
Routine cleaning can be achieved by simply sponging down the seamless stainless steel tank with tap water. (Dish washing detergent may be used but the tank must be thoroughly rinsed.)
To restrict the growth of algae in the bath, we recommend that all circulation lines be opaque. This will eliminate the entrance of light required for the growth of most common algae.
We recommend the use of Chloramine-T, 1 gram per 3½ liters.
- 35 -
Page 38
Internal Temperature
X
Sensor (rdt1)
Calibration
Press and Hold
X.X
No
Yes
Should the bath fluid temperature display disagree with your calibrated refer­ence thermometer, the internal temperature sensor (rtd1) may need calibration.
Do not pick calibration points that are outside the safe operating limits of the fluid in your application. For example with water, 90°C and 5°C would be typical calibration points.
No
Maintenance
CAL
rtd1
rdt3
A in
No
Yes
No
No
No
Release
NOTE: If it is more convenient, the low-end calibration can be performed before doing the high-end.
Yes
rtd3 is used to calibrate the refrigeration system, contact Thermo Fisher.
Optional Display
r1 H
No
r1 L
No
Yes
Yes
r1 H
r1 L
Run the bath to a suitable high­end calibration point. Place a
No
calibrated reference thermometer
Yes
200.0
in the bath. Ensure the fluid temperature is stabilized. Press
Yes
and hold the NO button and then press the YES button three
No
times. Release the NO button.
Yes
-40.0
The controller will display CAL.
Yes
Press YES and the controller will display rdt1. Press YES again and the controller will display r1 H. Press YES again and the
controller will alternately flash r1 H and the current probe temperature. Use the arrow buttons to adjust the temperature to match the reference thermometer.
Press the SCROLL and NO buttons as shown until
AoUt
No
Optional Display
StorE is displayed, press YES to accept the new value, press No to abort it.
Repeat for the low-end temperature. Run the bath to a
No
StorE
suitable low-end calibration point. At the r1 L display use the arrow buttons to adjust the temperature to match a
Accept All Changes
Yes
calibrated reference thermometer.
Press the SCROLL and NO buttons as shown until StorE is displayed, press YES to accept the new value, press NO to abort it.
NOTE: Both the high and low temperatures must be entered for a valid calibra­tion. If power is lost before the procedure is complete, critical data needed for the calculation of calibration parameters will be lost. After pressing the YES button at the StorE prompt wait several seconds before proceeding to ensure that a bad calibration message does not appear. Premature use of the keypad after pressing the YES button may cancel the bad calibration error message.
- 36 -
Page 39
External Temperature
Sensor (rtd2)
Calibration
(Digital Plus Only)
XX.X
Sensor
rtd2
No
No
StorE
Hold for 5 seconds
r2 H
Yes Yes
No
r2 L
No
Accept All Changes
Yes
When using any external sensor (rtd2) for the first time, Thermo Fisher recom­mends a calibration. This calibration will only affect the temperature read by the external sensor.
Do not pick calibration points that are outside the safe operating limits of the fluid in your application. For example with water, 90°C and 5°C would be typical calibration points.
NOTE: If it is more convenient, the low­end calibration can be performed before doing the high-end.
No
r2 H
Yes
200.0
Run the bath to a suitable high-end calibration point. Place the sensor and
Yes
a calibrated reference thermometer in the bath. Ensure the fluid temperature
No
is stabilized. Press and hold the
Yes
r2 L
Yes
-40.0
Yes
Sensor button for five seconds. The controller will display rtd2. Press YES and the controller will display r2 H. Press YES and the display will alternately flash r2 H and the current probe temperature. Use the arrow buttons to adjust the temperature to match the reference thermometer.
Maintenance
Press the SCROLL and NO buttons until StorE is displayed, pressing YES accepts the new value.
Repeat for the low-end temperature. Run the bath to a suitable low-end calibra­tion point. At the r2 L display use the arrow buttons to adjust the temperature to match a calibrated reference thermometer.
Pressing the SCROLL button after the low calibration will display StorE, pressing YES accepts the new value.
If the SCROLL button is not pressed for 60 seconds the function will time-out and the changes will not be saved. Pressing Mute will also exit the calibration and return you to the reservoir fluid temperature display.
NOTE: Both the high and low temperatures must be entered for a valid calibra­tion. If power is lost before the procedure is complete, critical data needed for the calculation of calibration parameters will be lost. After pressing the YES button at the StorE prompt wait several seconds before proceeding to ensure that a bad calibration message does not appear. Premature use of the keypad after pressing the YES button may cancel the bad calibration error message.
- 37 -
Page 40
Optional Analog Port/ Calibration (Digital Plus Only)
Press and Hold
XX.X
No
Yes
No
Re le a se
The analog signal is setup using the unit's Computer Setup Loop. With the bath on, press and hold the Computer button for five seconds. The controller will display SErL. If needed, press the arrow buttons to toggle between 232,
485, and A In. With A In displayed, press the Computer button again until StorE is displayed, press YES. The Computer button will flash when A in is
enabled. Use the Computer button to enable/disable the analog signal.
No
CAL
Yes
rtd 1
No
rdt3
No
A in
No
Maintenance
AoUt
No
No
St o rE
The analog input and output are calibrated at the factory. If you need to recalibrate follow the diagram until the display indicates A in.
Pressing YES at the A in display and the display will indicate A iH. Press YES and the display will alternate between A iH and some value. Apply 2.5V to the analog input pin 15, see page 27 (analog ground is pin 6). Measure the precise value with a voltmeter.
Change the value on the bath display to match the voltmeter reading.
Yes
Yes
Yes
A iH
No
No
A iL
A oH
No
No
Yes
Yes
Yes
Yes
Accept All C hanges
A iH
A iL
A oH
A oL
Company preset values: A iH = 2.5000 A iL = 0.0000 A oH = 2.5000 A oL = -.5000
x.xxxx
x.xxxx
x.xxxx
x.xxxx
Press SCROLL to check your value and
Yes
No
then press SCROLL again to display A iL.
If desired, repeat the procedure for A iL.
Yes
Apply 0V to pin 15. Measure the voltage
No
and change the displayed value to match it
Pressing YES at the AoUt display and the
Yes
display will indicate A oH. Press YES and
No
the display will alternate between A oH and 2.5000, the bath will set the Temp Out pin 7 output voltage to approximately 2.5V.
Yes
Measure the voltage and change the
No
displayed value to match it. Press SCROLL to check your value and then press SCROLL again to display A oL.
If desired, repeat the procedure for A oL. The display will alternate between A oH and -.5000, the bath will set the Temp Out pin 7 output voltage to approximately
-0.5V. Measure the voltage and change the value to match the meter.
At the StorE display press YES to save the calibration, press No to abort it.
NOTE: If error code Er16 appears you will need to recalibrate.
- 38 -
Page 41
Error Codes
Section V Troubleshooting
On Start Up:
ROM checksum. Check with Thermo Fisher Test failure. Locks up the program Display board failure. Clears when display board is fixed Critical checksum failure. Check with Thermo Fisher
Operational Errors:
Asynchronous communication error, check serial interface parameters
Bad calibration data entered using Calibration Loop. Redo calibration
Unusual Hardware Conditions
These errors will flash on the display and cannot be cleared. These are internal controller problems.
through - Interrupt errors during runtime
Synchronous communication error - check connections
BOM invalid. Contact Thermo Fisher
Functional/ Machine Errors
Warnings self-clear after the cause of the error is identified and corrected. Faults require pressing I/0 to clear the error message and then pressing I/0 again to start the unit after the cause of the error is identified and corrected.
Error Display Indication Low temp setpoint warning/fault, see page 21
Low level warning, fluid below safe operating level High temp setpoint warning/fault, see page 21
Shorted external temperature sensor (rtd2) Open external temperature sensor (rtd2) Shorted internal temperature sensor (rtd1) Open internal temperature sensor (rtd1) Fluid low level fault - unit shuts down
Troubleshooting
High Temp fault - unit shuts down, see page 28
Continued on next page.
- 39 -
Page 42
External Sensor
1 2 3 4 5
6 7 8 9
Connector
Configuration error
Invalid timer setting, see page 25
Offset setting = ---, or not defined, see page 26
Feature not available because communication mode is enabled
Unit reaction to warning/fault errors depend on how the unit is configured, see Setup/Tuning Loop on page 21. The unit is shipped configured to continue running. If any other code appears contact Thermo Fisher customer service.
The unit is equipped with a male 9-pin D-connector located on the rear of the control box. The connector is used with an optional external sensor.
Pin # Function
1 3-wire RTD connection A 2 No connection 3 No connection 4 3-wire RTD connection A 5 No connection 6 No connection. 7 3-wire RTD connection B 8 No connection 9 No connection
Troubleshooting
Hardware Internal Connector Mating Connector
AMP Part# 745492-2 AMP Part# 745491-2
- 40 -
Page 43
Checklist
Unit will not start
On Digital Plus controllers, check Serial Communication Mode on or off. Check reservoir. Unit will not start if the reservoir fluid is below the lower slit. Check the line cord; ensure it is plugged in. Check the position of the circuit breaker on the rear of the unit. Check the controller for error codes, see previous page.
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 the specific electrical requirements of your unit.
No external circulation
Check for obstructions, kinks, or leaks in the circulation tubing.
Circulation will cease when the pump head has been exceeded.
No/poor temperature control
Check Serial Communications Mode on or off.
Check controller PID values. See next page for factory preset values. NOTE: Using high viscosity fluids at low temperatures may require PID adjust­ment, contact Thermo Fisher.
Perform internal temperature sensor calibration.
Check optional external sensor connection. Perform calibration.
High Temperature Cutout activated, see page 28.
Condensation
A gasket is available for EX 7 units to install under the controller in order to prevent any condensation from leaking into the unit.
Part Numbers: Gasket, Baffle 084900 Clamp 036198 Instructions U00922
No serial communications
All units are tested for serial communications before they leave the factory. Ensure the Computer indicator on the controller is on.
Troubleshooting
Check all communications settings and commands, they must be exact. See Appendix B.
Check all wiring for proper connections or possible shorts. Software to verify serial communication is available from Thermo Fisher.
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Page 44
m
Service Assistance
Controller PID Values
BOM Decoder
If, after following these troubleshooting steps, your unit fails to operate properly, contact our Service Department for assistance (see Preface, After­sale Support). Before calling, please obtain the following information:
- unit BOM number
- unit serial number
- software version
- voltage of power source
The factory set PID values are:
PI D
Heat 0.6 0.6 0.0
Thermo Fisher does not recommend changing the PID values. Incorrect PID values will hamper unit performance.
The Bill of Material (BOM) number helps identify the configuration of your unit. The number is printed on the label located on the rear of the unit.
Troubleshooting
Digit#
Unit Identifier 275 = EX-7 276 = EX-10 277 = EX-17 279 = EX-35
Condenser Cooling Mode 0 = None
Pump 20 = Z-Pump 99 = Custom
Voltage 03 = 11 5/60/1 11 = 100/50/1, 100/60/1 25 = 230/50/1 99 = Custo
Reserved 00
Controller 00 = Digital One 01 = Digital Plus 02 = Digital Plus w/Analog I/O 10 mV/ °C 99 = Custom
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Displaying Software
Version Number
(Digital One/Digital Plus)
These values will be needed when calling Thermo Fisher Scientific for sales/ service information. The controller can display the installed software version number. For example, for a unit with software version 082645.1A:
1. Unit is running normally and displaying reservoir fluid temperature.
2. Press and hold No for at least 10 seconds. The display will show the first two digits, for example: 08 .
3. Press The display will show the remaining digits to the left of the decimal, for
example: 2645.
4. Press The display will show the decimal point and the digit to the right of the
decimal point, for example, 1 .
5. Press The display will show the revision letter, as its equivalent number, for
example, 1 = A.
6. Press The display will flash between Csu and the software checksum value.
7. Press The display returns to the reservoir fluid temperature.
Troubleshooting
- 43 -
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Blank Page.
- 42 -
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Appendix A Fluids
Water Quality Standard and Recommendations
Microbiologicals
(algae, bacteria, fungi) 0 0
Inorganic Chemicals
Calcium <25 <0.6 Chloride <25 <10 Magnesium <12 <0.1 Sulfate <25 <1 Total Hardness <17 <0.05
Unfavorably high total ionized solids (TIS) can accelerate the rate of galvanic corrosion. These contaminants can function as electrolytes which increase the potential for galvanic cell corrosion and lead to localized corrosion such as pitting.
High water hardness (Calcium and Maganese) can also produce scaling. For example, tap water in the U.S. averages 171 ppm (of NaCl). The recommended level for use in a water system is between 0.5 to 5.0 ppm (of NaCl).
Recommendation: Initially fill the tank with distilled/deionized water. Do not use untreated tap water as the total ionized solids level may be too high.
Permissible (PPM) Desirable (PPM)
Maintain this water quality at a resistivity of between 1 to 10 MOhmcm (com­pensated to 25°C) by using a purification system. Although the initial fill may be as high as 18 MOhmcm (compensated to 25°C), the desired level for long time usage is 1 to 3 MOhmcm (compensated to 25°C).
The above two recommendations will reduce the electrolytic potential of the water and prevent or reduce the galvanic corrosion observed.
Appendix A
A - 1
Page 48
EX Compatibility with
Recommended Fluids
Filtered/Singled Distilled water
This fluid is recommended primarily because it has all microorganisms that cause biological fouling removed through vaporizing and condensing the water. However, distilled water does not remain pure for very long when exposed to the atmosphere. Air-born spores can contaminate the water and activate algae growth. Chloramine-T is a compatible algaecide that can be used to combat growth but a more effective maintenance plan would include switching out the fluid with newly distilled water every six months. The particulates that have been filtered out in the process are also preventative in keeping the system “clean” of contaminants. Distilling water that contains an additive could increase the concentration of that additive in the water.
50/50 Uninhibited Ethylene Glycol/Water
Ethylene glycol is used to depress the freezing point of water as a coolant. We recommend not using the uninhibited (no corrosion additives) above 60°C because it breaks down into acidic by­products faster at high temperatures. These acidic by-products, especially carbonic acid, are corrosive to copper. The inhibitors are used to control the corrosion rates by passivating the metal surfaces with an inert film. Uninhibited ethylene is more corrosive to copper that plain water so therefore it is not recommended unless it is required for the application.
50/50 Inhibited Ethylene Glycol/ Water
Inhibited glycol can be used to increase the operating temperature range of the fluid but should not be used as a “pre-mixed anticorrosive” solution. Again, this fluid does break down over time at high temperatures. Industry standards use a pH standard of 8 to determine when the fluid has become corrosive. Dowtherm® is an ethylene based product that contains dipotassium phosphates in a 4% concentration. The recommended use of Dowtherm® is mixing with distilled or deionized water or water that contains less than 25 ppm chloride and sulfate and less than 100 ppm total hardness of CACO3. The general term, inhibited glycol/water, is too close to meaning inhibited water. Inhibited water can have many types of additives including chromate that will foul the cooling system very quickly.
50/50 Uninhibited Propylene Glycol/ Water
Although the use of this propylene glycol is similar to ethylene glycol, propylene glycol is consid­ered “safe” to use in the food industry. Propylene is less dense than ethylene and therefore will have a tendency to weep more through mechanical seals.
Appendix A
50/50 Inhibited Propylene Glycol/ Water
Same issues as with uninhibited propylene and uninhibited ethylene glycol.
Deionized Water (1-3 MOhmcm, compensated) This water has had the conductive ions that cause galvanic corrosion between dissimilar metals removed. However, since this is not the normal state of water, when it is too pure deionized water is aggressive to metal. The leaching of metallic ions from the metal surface is seen in pitting.
NEVER use flammable or corrosive fluids with this unit. Do not use automotive anti­freeze. Commercial antifreeze contains silicates that can damage the unit. Use of automotive antifreeze may void the manufacturer’s warranty.
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Page 49
Appendix B NC Serial Communications Protocol
(Digital Plus Only)
9-pin female
NOTE: This appendix assumes you have a basic understanding of serial communications protocols.
All data is sent and received in binary form, do not use ASCII. In the following pages the binary data is represented in hexadecimal (hex) format.
The NC Serial Communications Protocol is based on a master-slave model. The master is a host computer, while the slave is the bath's controller. Only the master can initiate a communications transaction (half-duplex). The bath ends the transaction by responding to the master’s query. The protocol uses either an RS-232 or RS-485 serial interface with the default parameters: 19200 baud, 1 start bit, 8 data bits, 1 stop bit, no parity, and for RS-485 a selectable address from 1 to 100.
NOTE: Before the unit will communicate, serial communication must be turned on using the controller's Computer button.
The unit can be controlled through your computer’s serial port by using the unit's standard female 9-pin connection.
RS-232 RS-485
1 No Connection 1 - 7 No connection 2TX 8T+ 3RX 9T­4 No Connection 5 Signal Ground 6 - 9 No Connection
To connect the bath to your computer, a M/F 9 pin D-Subminiature extension cable will be required. See page 32 for cables available from Thermo Fisher.
All commands must be entered in the exact format shown in the tables on the following pages. The tables on the last page of this Appendix show all com­mands available, their format and responses. Controller responses are either the requested data or an error message. The controller response must be received before the host sends the next command.
The host sends a command embedded in a single communications packet, then waits for the controller’s response. If the command is not understood or the checksums do not agree, the controller responds with an error command. Otherwise, the controller responds with the requested data. If the controller fails to respond within 1 second, the host should re-send the command.
During RS-485 operation the bath will wait at least 5 milliseconds after receiv­ing the checksum byte before asserting its transmitter for the purpose of replying to the host. Therefore, when the host is done sending a command, it must disable its transmitter in less than 5 milliseconds. When the bath is done sending its reply, it will disable its transmitter in less than 5 milliseconds.
B - 1
Appendix B
Page 50
NC Serial Communications Protocol
NOTE: All byte values are shown in hex, hex represents the binary values that must be sent to the bath. Do not use ASCII.
The framing of the communications packet in both directions is:
Checksum region
Lead char Addr-MSB Addr-LSB Command n d-bytes d-byte 1 ... d-byte n Checksum CA or CC 00
Lead char RS-232 = CA (hex) RS-485 = CC (hex).
Device address is 1 - 64 hex (1 - 100 decimal)
Addr-msb Most significant byte of device address is 00 hex. Addr-lsb Least significant byte of device address is 01 - 64 hex (1 - 100 decimal) for
RS-485, 01 for RS-232.
Command Command byte (see Table 1). n d-bytes Number of data bytes to follow (00 to 08 hex).
st
d-byte 1 1
... ...
d-byte n n Checksum Bitwise inversion of the 1 byte sum of bytes beginning with the most signifi-
data byte (the qualifier byte is considered a data byte).
th
data byte.
cant address byte and ending with the byte preceding the checksum. (To perform a bitwise inversion, "exclusive OR" the one byte sum with FF hex.)
The master requests information by sending one of the Read Functions as shown in Table 1 on page B-4. Since no data is sent to the bath during a read request, the master uses 00 for the number of data bytes following the command byte.
The bath will respond to a Read Function by echoing the lead character, address, and command byte, followed by the requested data and checksum. When the bath sends data, a qualifier byte is sent first, followed by a two byte signed integer (16 bit, MSB sent first). The qualifier byte indicates the precision and units of measure for the requested data as detailed in Table 2.
As an RS-232 example, the master requests to read internal temperature by sending:
command byte
CA 00 01 20 00 DE
0 bytes of data
If the temperature is 62.5°C, the bath would reply:
Appendix B
command byte
The checksum is the bitwise inversion of 21 (00+01+20+00) = 21
byte values are in hex
The qualifier byte of 11 indicates a precision of 1 decimal point and units of °C. The temperature of
62.5°C is 625 decimal = 271 hex.
CA 00 01 20 03 11 02 71 57
3 bytes to follow
The checksum is the bitwise inversion of A8 (00+01+20+03+11+02+71) = A8 A8 ^ FF = 57 ^ = Bitwise XOR function
B - 2
Page 51
The master sets parameters in the bath by sending one of the Set Functions as shown in Table 1. The master does not send a qualifier byte in the data field. The master should be pre-programmed to send the correct precision and units (it could also read the parameter of interest first to decode the correct precision and units needed).
As an RS-485 example, if the master wants to set the setpoint to 30°C, it would send :
command byte
The checksum is the bitwise inversion of 22 (00+03+F0+02+01+2C) = 122 Take the LSB = 22
CC 00 03 F0 02 01 2C DD
The bath responds:
2 bytes to follow
command byte
The temperature of 30.0°C is 300 decimal = 012C hex.
The qualifier byte of 11 indicates a precision of 1 decimal point and units of °C. The temperature of
30.0°C is 300 decimal = 012C hex.
CC 00 03 F0 03 11 01 2C CB
3 bytes to follow
The checksum is the bitwise inversion of 34 (00+03+F0+03+11+01+2C) = 134 Take the LSB = 34
Appendix B
B - 3
Page 52
Table 1 (All bytes are in hex)
RS-232. For RS-485 substitute CC for CA as the lead character.
FUNCTION MASTER SENDS BATH RESPONDS
READ Read Acknowledge CA 00 01 00 00 FE CA 00 01 00 02(v1)(v2)(cs) Read Status* CA 00 01 09 00 F5 CA 00 01 09 05(d1)(d2)(d3)(d4)(d5)(cs) Read Internal Temperature CA 00 01 20 00 DE CA 00 01 20 03(qb)(d1)(d2)(cs) Read External Sensor CA 00 01 21 00 DD CA 00 01 21 03(qb)(d1)(d2)(cs) Read Setpoint (control point) CA 00 01 70 00 8E CA 00 01 70 03(qb)(d1)(d2)(cs) Read Low Temperature Limit CA 00 01 40 00 BE CA 00 01 40 03(qb)(d1)(d2)(cs) Read High Temperature Limit CA 00 01 60 00 9E CA 00 01 60 03(qb)(d1)(d2)(cs) Read Heat Proportional Band (P) CA 00 01 71 00 8D CA 00 01 71 03(qb)(d1)(d2)(cs) Read Heat Integral (I) CA 00 01 72 00 8C CA 00 01 72 03(qb)(d1)(d2)(cs) Read Heat Derivative (D) CA 00 01 73 00 8B CA 00 01 73 03(qb)(d1)(d2)(cs)
SET Set Setpoint (control point)** CA 00 01 F0 02(d1)(d2)(cs) CA 00 01 F0 03(qb)(d1)(d2)(cs) Set Low Temperature Limit** CA 00 01 C0 02(d1)(d2)(cs) CA 00 01 C0 03(qb)(d1)(d2)(cs) Set High Temperature Limit** CA 00 01 E0 02(d1)(d2)(cs) CA 00 01 E0 03(qb)(d1)(d2)(cs) Set Heat Proportional Band CA 00 01 F1 02(d1)(d2)(cs) CA 00 01 F1 03(qb)(d1)(d2)(cs) (P = 0.1-99.9) Set Heat Integral (I = 0-9.99) CA 00 01 F2 02(d1)(d2)(cs) CA 00 01 F2 03(qb)(d1)(d2)(cs) Set Heat Derivative (D = 0-5.0) CA 00 01 F3 02(d1)(d2)(cs) CA 00 01 F3 03(qb)(d1)(d2)(cs)
Set On/Off Array CA 00 01 81 08(d1)... (d8)(cs) CA 00 01 81 08(d1)...(d8)(cs)
d1 = unit on/off, d2 = sensor enable, d3 = faults enabled, d4 = mute, d5 = auto restart, d6 = 0.01°C enable, d7 = full range cool enable, d8 = serial comm enable (di: 0 = off, 1 = on, 2 = no change)
For example, to turn the unit on send CA 00 01 81 08 01 02 02 02 02 02 02 02(cs) BATH ERROR RESPONSES
Bad Command N/A CA 00 01 0F 02 01(ed)(cs) Bad Checksum N/A CA 00 01 0F 02 03(ed)(cs)
command bytes shown in bold qb = qualifier byte, see Table 3 d1,d2 = 16 bit signed integer of the value being sent or received cs = the checksum of the string (see text) ed = echo back of the command byte as received v1.v2 = protocol version * See Read Status, Table 2 ** limited to the range of the bath
Appendix B
B - 4
Page 53
Table 2 Read Status
BIT d1 d2 d3 b.7 = 1 RTD1 Open Fault RTD2 Open Fault High Fixed Temp Fault b.6 = 1 RTD1 Shorted Fault RTD2 Shorted Fault Low Fixed Temp Fault b.5 = 1 RTD1 Open RTD2 Open Warn High Temp Fault b.4 = 1 RTD1 Shorted RTD2 Shorted Warn Low Temp Fault b.3 = 1 0 RTD2 Open Low Level Fault b.2 = 1 0 RTD2 Shorted High Temp Warn b.1 = 1 0 RTD2 Controlling Low Temp Warn b.0 = 1 0 HTC Fault Low Level Warn
BIT d4 d5 b.7 = 1 Buzzer On RTD2 Controlling b.6 = 1 Alarm Muted Heat LED Flashing** b.5 = 1 Unit Faulted Heat LED On b.4 = 1 Unit Stopping 0 b.3 = 1 Unit On 0 b.2 = 1 Pump On 0 b.1 = 1 0 0 b.0 = 1 Heater On 0
**LED bits in REQ STATUS1 byte d5 LED State LED Flashing LED On OFF 0 0 ON 0 1 FLASHING 1 1 Invalid 1 0
b.7 = most significan bit b.0 = least signifcant bit
Table 3 Qualifier Byte
10 hex 0.1 precision, no units of measure 20 hex 0.01 precision, no units of measure 11 hex 0.1 precision, °C units 21 hex 0.01 precision, °C units
Example: The temperature of 45.6°C would be represented by the qualifier 11 hex, followed by the 2 bytes 01 C8 hex (456 decimal).
Appendix B
B - 5
Page 54
Appendix C International Quick Reference Operating Procedures
Verkorte handleiding
Plaats het apparaat niet in stoffige, corrosieve en/of vochtige ruimtes. Maak het apparaat regelmatig schoon.
Het voltage moet voldoen aan het opgegeven voltage, ±10%.
De aansluitingen voor de waterslangen zijn gelabeld en bevinden zich aan de achterzijde. De aansluitingen zijn naar boven gericht, zodat de recirculatievloeistof terug in het reservoir stroomt als de slangen afgekoppeld zijn. Beide connectoren zijn van roestvrijstaal. De aansluitingen zijn ¼ inch FPT zodat er standaard aansluitmateriaal gebruikt kan worden. Voor uw gemak zijn er slangpilaren bijgesloten.
De slangaansluitingen zijn bevestigd aan de achterkant van het apparaat en zijn voorzien van het
label en . Deze roestvrijstalen aansluitingen kunnen aangesloten worden op een
3
/8 inch ID flexibele slang. Verwijder de
roestvrijstalen schroefdoppen, indien externe circulatie gewenst is. Bevestig de aan de
ingang van uw applicatie. Bevestig de aan de uitgang van uw applicatie.
Vul nu het reservoir tot het volgende niveau: tussen de horizontale markeringen op de roestvrijstalen scheidingsplaat, die de werkruimte van het pompgedeelte scheidt.
Operationeel gebruik
Alvorens het apparaat in gebruik te nemen, dient u eerst alle elektrischeen slangaansluitingen te controleren. Tevens dient u te controleren of het systeem gevuld is met koelvloeistof.
Om het apparaat te starten druk op . Om het
apparaat uit te schakelen druk nogmaals op .
Temperatuur Instelling
Druk op om de ingestelde temperatuur te zien. De indicator licht op en de ingestelde waarde knippert. Druk
op de knop met het pijltje totdat de gewenste temperatuur is ingesteld. Druk nogmaals op om de
wijziging te bevestigen. De display knippert enkele malen snel en zal dan weer de actuele temperatuur laten zien.
Periodiek onderhoud
Controleer regelmatig de vloeistof. Als de vloeistof ververst moet worden handel dan als volgt: Laat de vloeistof uit het apparaat lopen. Aan de achterzijde van het apparaat bevindt zich een afvoerkraantje. Spoel het reservoir door met een spoelvloeistof die geschikt is voor het apparaat en de koelvloeistof.
Gebruik nooit brandbare of andere vloeistoffen die het toestel kunnen beschadigen. De vloeistof die u gaat gebruiken moet een viscositeit hebben van 50 centistokes of minder bij lage temperatuur werking. Kraanwater wordt in het algemeen aanbevolen wanneer u bij temperaturen werkt van +8°C tot +80°C.
Wanneer u wilt circuleren naar een extern systeem, dient u altijd extra vloeistof achter de hand te houden om het juiste vloeistofniveau, zowel in het interne als het externe gedeelte van het systeem, te handhaven.
Gebruik het apparaat nooit wanneer het reservoir leeg is.
Aan de achterkant van de unit (onderaan) zitten twee aansluitingen waarop bijvoorbeeld leidingwater of een doorstroomkoeler gekoppeld kan worden ten
behoeve van extra koeling. Het apparaat is voorzien van een afvoer, welke
bevestigd is aan de achterkant van het apparaat.
C - 1
Page 55
WARRANTY
Thermo Fisher Scientific warrants for 24 months from date of shipment the Thermo Scientific NESLAB EX unit according to the following terms.
Any part of the unit manufactured or supplied by Thermo Fisher Scientific and found in the reasonable judgment of Thermo Fisher to be defective in material or workmanship will be repaired at an authorized Thermo Fisher Repair Depot without charge for parts or labor. The unit, including any defective part must be returned to an authorized Thermo Fisher Repair Depot within the warranty period. The expense of returning the unit to the authorized Thermo Fisher Repair Depot for warranty service will be paid for by the buyer. Our 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 unit. With respect to units that qualify for field service repairs, Thermo Fisher Scientific’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 Scientific 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 this 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 Fisher Scientific 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.
OUR OBLIGATION UNDER THIS WARRANTY IS STRICTLY AND EXCLUSIVELY LIMITED TO THE REPAIR OR REPLACEMENT OF DEFECTIVE COMPONENT PARTS AND Thermo Fisher Scientific DOES NOT ASSUME OR AUTHORIZE ANYONE TO ASSUME FOR IT ANY OTHER OBLIGATION.
Thermo Fisher Scientific ASSUMES NO RESPONSIBILITY FOR INCIDENTAL, CONSEQUENTIAL, OR OTHER DAMAGES 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 Fisher Scientific. 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 Fisher Scientific.
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