caron 7340-25 User manual

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 2 of 92
Dear Valued Customer:
Thank you for purchasing CARON Products & Services equipment. We appreciate
your business and look forward to being your preferred supplier of controlled
environment equipment products in the future.
At CARON, we are committed to continuous quality improvement. Our goal is to
supply our customers with highly reliable equipment at a fair price. In order to openly
monitor our performance, we would appreciate your feedback on our products and
services.
If you have questions, or any suggestions for improvement based on the installation or
operation of the equipment you have purchased, please contact our service
department at www.caronproducts.com or 740-373-6809.
Thanks again for your business!

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 3 of 92
Revision Log
Version
Date
Description
Rev
A
1
-
9
-
1
8
Initial Release
Rev B 02-12-18 Added HUMD311-1,-4 option
Rev C
04
-
04
-
18
Edited troubleshooting section, port stoppers
Rev D
07
-
17
-
18
Updated PM Kit info
Rev E 05-14-19 Added analog output adjustable temperature
range feature.
Rev F
1
-
15
-
20
Updated for flammable refrigerant
Rev G
01
-
21
-
21
Added adjustable alarm delay
Rev H 03-26-21 Changed warranty to 2 years
Rev J
03
-
31
-
21
Updated Declaration of
Conformity document

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 4 of 92
TABLE OF CONTENTS
Warranty ........................................................................................................ 6
Equipment Overview .................................................................................. 10
Installation ................................................................................................... 13
Unpacking
Choosing a Location
Preliminary Cleaning
Installing the Port Stopper
Installing the Shelves
Leveling the Unit
Connecting the Drain Line
Connecting the Water Supply (HUMD311-1,-4 option)
Connecting Electrical Power
Optional Accessory Installation ................................................................ 20
Connecting Alarm Contacts (ALRM302)
Connecting Analog Outputs (OUTP301, OUTP302)
Installing Drain Water Pump (PUMP301)
Operation ..................................................................................................... 23
Using the Keypad
Learning the Touch Screen
Changing the Temperature Setpoint
Changing the Humidity Setpoint
Trend Graph
Adjusting Fresh Air Ports (PORT305)
Optional Accessory Operation .................................................................. 31
Operation of the Humidity System. (HUMD311-1,-4)
Operation of the LED Lighting (LGHT324, LGHT340, LGHT341, LGHT342)
Operation of the Front 6” Mounted Recorders (RCDR316, RCDR317)
Operation of the Front 10” Mounted Recorders (RCDR318, RCDR319)
H2O2 sterilization cycle (STER305)
Calibration ................................................................................................... 47
Calibrating the Temperature
Calibrating the Humidity
Calibrating Optional Chart Recorders
Alarms ......................................................................................................... 51
Alarm System Overview
Snoozing the Speaker
Muting the Speaker

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 5 of 92
Changing Alarm Setpoints and Delay
Alerts .................................................................................................................... 57
Alert System Overview
Maintenance
Info ............................................................................................................... 60
Info System Overview
Advanced Features ..................................................................................... 61
Setting the time & day
Door Heat
Humidity Control
Locking the controls
Changing the passcode
Factory menu & troubleshooting
Preventative Maintenance .......................................................................... 77
Specifications ............................................................................................. 79
Electrical Schematics ................................................................................. 80
Troubleshooting ......................................................................................... 89
Spare Replacement Parts ........................................................................... 90
Appendix A – Declaration of Conformity .................................................. 92

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 6 of 92
WARRANTY INFORMATION
EQUIPMENT LIMITED WARRANTY
Please review this section before requesting warranty service. At CARON, one of our primary goals is to provide
customers with high levels of personal service and top quality products, delivered on time, backed by technical
service and supported for the life of the product.
Before contacting us for warranty service, please be aware that there are repairs that are not covered
under warranty.
WARRANTY DEFINED
Caron Products & Services, Inc. (herein after CARON) hereby warrants that equipment manufactured by CARON
is free from defects in materials and workmanship when the equipment is used under normal operating conditions
in accordance with the instructions provided by CARON.
COVERED:
 Parts and labor for a period of two (2) year from date of shipment.
 Any part found defective will be either repaired or replaced at CARON’s discretion, free of charge, by CARON
in Marietta, OH. Parts that are replaced will become the property of CARON.
 If CARON factory service personnel determine that the customer’s unit requires further service CARON may,
at its sole discretion, provide a service technician to correct the problem, or require the return of the
equipment to the factory or authorized service depot.
 CARON will have the right to inspect the equipment and determine the repairs or replacement parts
necessary. The customer will be notified, within a reasonable time after inspection, of any costs incurred
that are not covered by this warranty prior to initiation of any such repairs.
NOT COVERED:
 Calibration of control parameters.
 Improper installation; including electrical service, gas and water supply tubing, gas supplies, room ventilation,
unit leveling, facility structural inadequacies or ambient conditions that are out of specification.
 Cost of express shipment of equipment or parts.
 Any customer modifications of this equipment, or any repairs undertaken without the prior written consent of
CARON, will render this limited warranty void.
 CARON is not responsible for consequential, incidental or special damages; whether shipping damage or
damages that may occur during transfer to the customer’s point of use. When the equipment is signed for at
the customer’s site, ownership is transferred to the customer. Any damage claims against the shipping
company become the responsibility of the customer.
 Repairs necessary because of the equipment being used under other than normal operating conditions or
for other than its intended use.
 Repair due to the customer’s failure to follow normal maintenance instructions.
 Parts considered consumable; including: light bulbs, filters, gases, etc.
 Damage from use of improper water quality.
 Damage from chemicals or cleaning agents detrimental to equipment materials.
 Force Majeure or Acts of God.
This writing is a final and complete integration of the agreement between CARON and the customer. CARON
makes no other warranties, express or implied, of merchantability, fitness for a particular purpose or otherwise,
with respect to the goods sold under this agreement. This warranty cannot be altered unless CARON agrees to
an alteration in writing and expressly stated herein shall be recognized to vary or modify this contract.
Ohio Law governs this warranty.

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 7 of 92
EQUIPMENT INTERNATIONAL LIMITED WARRANTY
Please review this section before requesting warranty service. At CARON, one of our primary goals is to provide
customers with high levels of personal service and top quality products, delivered on time, backed by technical service
and supported for the life of the product.
Before contacting your distributor for warranty service, please be aware that there are repairs that are not
covered under warranty.
WARRANTY DEFINED
Caron Products & Services, Inc. (herein after CARON) hereby warrants that equipment manufactured by CARON is
free from defects in materials and workmanship when the equipment is used under normal operating conditions in
accordance with the instructions provided by CARON.
COVERED:
 Parts for a period of two (2) years from date of shipment.
 Any part found defective will be either repaired or replaced at CARON’s or their authorized representative’s
discretion. Parts that are replaced will become the property of CARON.
 If CARON or their authorized representatives determine that the customer’s unit requires further service, CARON
or the representative may, at its sole discretion, provide a service technician to correct the problem, or require the
return of the equipment to the an authorized service depot.
 CARON or their authorized representative will have the right to inspect the equipment and determine the repairs
or replacement parts necessary. The customer will be notified, within a reasonable time after inspection, of any
costs incurred that are not covered by this warranty prior to initiation of any such repairs.
NOT COVERED:
 Calibration of control parameters.
 Improper installation; including electrical service, gas and water supply tubing, gas supplies, room ventilation, unit
leveling, facility structural inadequacies or ambient conditions that are out of specification.
 Cost of express shipment of equipment or parts.
 Any customer modifications of this equipment, or any repairs undertaken without the prior written consent of
CARON, will render this limited warranty void.
 CARON and their representative are not responsible for consequential, incidental or special damages; whether
shipping damage or damages that may occur during transfer to the customer’s point of use. When the equipment
is signed for at the customer’s site, ownership is transferred to the customer. Any damage claims against the
shipping company become the responsibility of the customer.
 Repairs necessary because of the equipment being used under other than normal operating conditions or for other
than its intended use.
 Repair due to the customer’s failure to follow normal maintenance instructions.
 Parts considered consumable; including: light bulbs, filters, gases, etc.
 Damage from use of improper water quality.
 Damage from chemicals or cleaning agents detrimental to equipment materials.
 Force Majeure or Acts of God.
This writing is a final and complete integration of the agreement between CARON and the customer. CARON makes
no other warranties, express or implied, of merchantability, fitness for a particular purpose or otherwise, with respect
to the goods sold under this agreement. This warranty cannot be altered unless CARON agrees to an alteration in
writing and expressly stated herein shall be recognized to vary or modify this contract.
Ohio Law governs this warranty.
Caron Products & Services, Inc.
PO Box 715 · Marietta, OH 45750
740-373-6809

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 8 of 92
INTERNATIONAL SYMBOLS AND DEFINITIONS
WARNINGS
Warning of hazardous area
Warning of dangerous electric voltage
Earth (ground) protective
conductor
Local government may require proper disposal
Help
Information
i
?
Warning of hot surface
Warning of risk of fire

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 9 of 92
Do not damage the refrigeration circuit. Do not store explosive
substances in the unit. Component parts shall be replaced with
like components and servicing shall be done by authorized
personnel to reduce the risk of possible ignition.
DANGER – Flammable Refrigerant Used. Risk of fire or
explosion.
 Do not puncture refrigerant tubing
 Do not use mechanical devices to defrost refrigeration
equipment
 Unit to be repaired only by trained service personnel
CAUTION – Flammable Refrigerant Used. Risk of fire or
explosion.
 Consult repair manual, owners guide before attempting to
service this product. All safety instructions must be
followed.
 Dispose of properly in accordance with federal or local
regulations.
CAUTION – Do not use any electrical appliance within the
Environmental Chamber, other than those recommended by the
manufacturer.
TO LOCATE REFRIGERANT TYPE AND PRESSURES, SEE SERIAL
LABEL LOCATED ON THE OUTSIDE OF THE UNIT
FOR HYDROCARBON (R290 PROPANE) REFRIGERANT UNITS
R290 is highly flammable and must be treated with proper care.

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 10 of 92
EQUIPMENT OVERVIEW
Congratulations! You have just purchased the latest technology in Insect/Animal
Rearing chambers. Before using the equipment, familiarize yourself with key
components of the product and thoroughly read this manual.
This user’s manual covers both 7340 Insect Rearing and 7350 Animal Rearing Series
Chambers
Model 7340
Left Side
Access Port
Replaceable air
intake filter behind
bezel
Right Side
Access Port
Adjustable
Sliding Shelf
Temperature
(& Optional Humidity)
Sensors behind panel
Illuminated
CARON Logo
Cabinet Leveling
Pads, Swivel Casters
Power Switch
(side)
Coated refrigeration
Coils (optional 7350)
3 Pane Glass
Door
7” Full
Color HMI

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 11 of 92
Model 7350
Left Side
Access Port
Replaceable air
intake filter behind
bezel
Right Side
Access Port
Adjustable
Sliding Shelves
Temperature
(& Optional Humidity)
Sensors behind panel
Illuminated
CARON Logo
Cabinet Leveling
Pads, Swivel Casters
Power Switch
(side)
Light Tight
Door
7” Full
Color HMI
Fresh Air Port
Inlet
Fresh Air Port
Outlet

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 12 of 92
EQUIPMENT OVERVIEW – CONTINUED
Actual Humidity
(HUMD307 option)
Actual
Temperature
Setpoint
Menu
Settings
Menu
(Home Screen)
Status Bar
(Settings Screen)
Navigation
Pane
(indicates
menu depth)
Current
screen
indicator
Submenu categories
Day / Time
Speaker
Lockout
icon
Parameter
Display
Zones
Day night lights
(some models)

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 13 of 92
INSTALLATION
Unpacking
Your new unit has been thoroughly packaged to avoid shipping damage. However, the
unit should be fully inspected upon arrival before signing for receipt. If the package has
visual damage, notes should be made on the freight bill and signed by the delivery
company. In the event of concealed damage after the unit is uncrated, keep the carton
and packaging material. Call the shipping company within 7 days of receipt, request
inspection and retain a copy of the inspection report.
For prolonged periods of inactivity leave the unit unplugged and securely stored.
Caron provides full on-site installation services for all models. Our installation services
guarantees the proper set-up and startup of all equipment. Please contact the Service
Department at 740-373-6809 or www.caronproducts.com for details.
For detailed instructions on how to safely remove the chamber off the shipping pallet,
see document located on the chamber.
Choosing a Location
To ensure proper operation, the unit must be located on a firm level surface, capable of
supporting approximately 900 pounds. The unit should be located in an 18°C to 25°C
ambient area and where there is no direct airflow from heating and cooling ducts as well
as out of direct sunlight. Allow four inches of clearance on all sides of the product to
allow for connections and airflow. The unit is designed to be used under the following
conditions:
 Indoor use only
 Altitude up to 2000m.
 Maximum relative humidity: non-condensing
 Mains supply voltage fluctuations up to +/- 10% of the nominal voltage;
damage may occur if voltage varies more than 10%
 Transient overvoltages up to the levels of overvoltage category II
 Temporary overvoltages occurring on the mains power supply
 Pollution degree: 2
 Ingress protection: IPXO
This product weighs in excess of 500 pounds.
Ensure that sufficient resources are available to
safely move the product.

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 14 of 92
* Depending on user setpoints, these units may not need a drain. Drains are
recommended at temperatures below 15°C.
The unit requires a dedicated electrical connection. Power requirements vary depending
upon the chamber model, see Connecting Electrical Power section.
Choose a location where these facilities are, or can be made available. If a water source
or a drain is not available, contact CARON customer service and ask about our
CRYS102 product line or click this web link for information on the product:
www.caronproducts.com

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 15 of 92
R290 REFRIGERANT UNITS
DANGER – Flammable Refrigerant Used. Risk of fire or
explosion.
 No equipment that uses an open flame should be placed
inside the unit.
 Do not use instrumentation or equipment that
incorporates potential ignition sources, e.g. open contact
switching, brushed DC and AC motors, etc.
 Do not use electrical appliances within the unit, other than
those recommended by the manufacturer.
Preliminary Cleaning
Your new environmental chamber was thoroughly cleaned prior to leaving the factory.
It is recommended, however, to clean all interior surfaces with a general purpose
laboratory cleaning agent to remove any shipping dust or dirt prior to using the product.
Contact Caron if there is any doubt to the compatibility of the cleaning agent being
used with the chamber. After cleaning, dry all interior components with a sterile cloth
as necessary.
Installing the Port Stoppers
The unit has an access port built into each side of the cabinet. The ports are designed
to allow customer access for equipment validation and for installation of other equipment
inside the chamber. These ports should be sealed with the provided rubber stoppers to
allow the chamber to function properly. Install the stoppers provided in the port on each
side of the unit.
Installing the Shelves
Each new 7340-25/7350-25 Series chamber includes 4 perforated stainless steel
shelves. Each new 7340-33/ 7350-33 Series environmental chamber includes five
perforated stainless steel shelves. Each shelf requires two shelf channels for
installation. The left and right shelf tracks are the same. Prior to installation, take time
to consider what the size of the product being placed in the chamber will be and set the
shelf spacing accordingly. Additional shelving can be purchased through CARON
customer service if necessary. The chamber should be empty when being moved.
To install the shelf channels insert the rear tab on the shelf channel into the rear wall on
the side wall of the chamber. Then insert the front tab into the front pilaster. Push the
entire shelf channel towards the rear of the unit and snap it down into place.

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 16 of 92
Leveling the Unit
Place a level on the middle shelf of the incubator. Adjust the leveling feet until the unit
sits level left to right and front to back. Even if the unit is level without adjustment, the
leveling feet should still be lowered to avoid the cabinet moving while opening and
closing the outer door & prevent a flat spot from forming on the casters.
Each shelf is capable of supporting a uniformly
distributed load of 50 pounds. The maximum
chamber capacity (stationary) is: 500 pounds.
Do not have multiple loaded shelves out
simultaneously or the
chamber may tip.

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 17 of 92
Connecting the Drain Line
The chamber drain connection is located in the bottom middle of the back of the
chamber. A 3/8” tube fitting, tubing and wire ties are supplied in the unit parts kit. Insert
the tube fitting into the tubing, secure tubing to fitting with provided wire tie. Insert fitting
into drain connection. Pull on the tubing after installation to make sure it is secure. Route
the drain tubing to a local floor drain. Duplicate fitting installation on other end of tubing
if necessary
If a local floor drain is not available, a variety of accessories are available through
CARON customer service. These accessories can also be viewed at
www.caronproducts.com.
For non-humidified chambers operated above 15°C, a drain is not needed. Install the
3/8” plug into the drain connection.
When using a pressurized water source, failure to connect
the unit to a drain could result in
facility
flooding.
The drain line relies on gravity to remove water from the
chamber. The drain line must remain below the chamber
to drain properly. Kinks or elevations in the drain line
above the cabinet drain will not allow the chamber to drain.

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 18 of 92
Use only distilled or deionized water with a resistivity
between 50K-CM and 1M-CM and a pH of greater than
6.5. Using water outside this range will void your warranty.
Do not use water that contains chloramines. Chloramines
can damage internal rubber gaskets resulting in leaks.
Connecting the Water Supply (HUMD311-1, -4 option)
This applies to units that have the HUMD311-1,-4 humidity option.
To ensure proper operation, distilled or deionized water is required as a supply on units
that have humidity control. If these water sources are not available contact CARON
customer service.
A water inlet fitting on the back of the unit and ¼” black tubing are provided to connect
the water supply to the chamber. Connect an appropriate water supply to the fitting.
Incoming line pressure should be regulated to not exceed 80 psi.
If a Condensate Recirculator water recycling system was purchased as a water supply,
refer to its user’s manual for proper installation.

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 19 of 92
Connect each chamber to a grounded circuit.
Failure to do so could result in electrical shock.
Connecting Electrical Power
The unit requires a dedicated electrical outlet. See table below for model specific power
required and connection.
Model # Power Requirements Plug Connection
-
1
115V, 60Hz, 16A FLA
NEMA 5
-
20
-
2
230V, 60Hz, 10
A FLA
NEMA 6
-
15
-3 230V, 50Hz, 8A FLA CEE 7/7
When the required electrical connection is available, plug the provided power cord into
the unit and the electrical outlet.
The mains power supply cord must meet the
requirements listed above. The use of an inadequate
mains power supply cord could result in equipment
failure or personal harm to the user.
In the event of a power outage the unit will
automatically restart when the power is restored.

7340_7350-25-33 Series Operations Manual Rev J 3-31-21 Page 20 of 92
OPTIONAL ACCESSORY INSTALLATION
Connecting Alarm Contacts (ALRM302)
With the purchase of ALRM302, a set of terminals on the rear of the unit is provided to
monitor temperature and humidity alarms.
With the alarm contacts, the terminals provided allow for a NO (normally open) output, a
NC (normally closed) and COM (common) connection. In the event of an alarm condition
or power failure, the NO contact will close, and the NC contact will open. Once the alarm
is cleared, the contacts return to their normal conditions. Insert the appropriate wire into
the terminal and tighten down the screw terminal on top of the connector.
Terminal Connection
Unit off
Normal
Alarm
N/O to C Closed Open Closed
N/C to C
Open
Close
Open
Alarm Contact
Connections