Thermo Scientific NESLAB EX Series Installation, Operation And Maintanance Manual
Thermo Scientific
NESLAB EX Series
Bath/Circulator
Thermo Scientific Manual P/N U00696 Rev. 03/06/07
Installation
Operation
Basic Maintenance
Visit our Web site at:
http://www.thermo.com/tc
Product Service Information, Applications
Notes, MSDS Forms, e-mail.
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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)
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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.
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
- 1 -
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.
- 2 -
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.
- 3 -
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.
- 4 -
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.
- 5 -
Circuit
Breaker(s).
Power connection.
See page 11.
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.
- 6 -
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
- 7 -
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
- 8 -
Time to Temperature
115V/60 Hz Models
230V/50 Hz Models
General Information
230V/50Hz Models
- 9 -
Blank Page.
- 10 -
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%.
- 11 -
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.
- 12 -
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.
- 13 -
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).
- 14 -
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.
- 15 -
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