Campbell ENC 10/12 User manual

Revision: 02/2020
Copyright © 2006 – 2020
Campbell Scientific, Inc.

Limited warranty
“Products manufactured by CSI are warranted by CSI to be free from defects in materials and
workmanship under normal use and service for twelve months from the date of shipment unless
otherwise specified in the corresponding product manual. (Product manuals are available for
review online at www.campbellsci.com.) Products not manufactured by CSI, but that are resold by
CSI, are warranted only to the limits extended by the original manufacturer. Batteries, fine-wire
thermocouples, desiccant, and other consumables have no warranty. CSI’s obligation under this
warranty is limited to repairing or replacing (at CSI’s option) defective Products, which shall be
the sole and exclusive remedy under this warranty. The Customer assumes all costs of removing,
reinstalling, and shipping defective Products to CSI. CSI will return such Products by surface
carrier prepaid within the continental United States of America. To all other locations, CSI will
return such Products best way CIP (port of entry) per Incoterms ® 2010. This warranty shall not
apply to any Products which have been subjected to modification, misuse, neglect, improper
service, accidents of nature, or shipping damage. This warranty is in lieu of all other warranties,
expressed or implied. The warranty for installation services performed by CSI such as
programming to customer specifications, electrical connections to Products manufactured by CSI,
and Product specific training, is part of CSI's product warranty. CSI EXPRESSLY DISCLAIMS AND
EXCLUDES ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE. CSI hereby disclaims, to the fullest extent allowed by applicable law, any and all
warranties and conditions with respect to the Products, whether express, implied or statutory,
other than those expressly provided herein.”

Assistance
Products may not be returned without prior authorization. The following contact information is
for US and international customers residing in countries served by Campbell Scientific, Inc.
directly. Affiliate companies handle repairs for customers within their territories. Please visit
www.campbellsci.com to determine which Campbell Scientific company serves your country.
To obtain a Returned Materials Authorization (RMA) number, contact CAMPBELL SCIENTIFIC,
INC., phone (435) 227-9000. Please write the issued RMA number clearly on the outside of the
shipping container. Campbell Scientific’s shipping address is:
CAMPBELL SCIENTIFIC, INC.
RMA#_____
815 West 1800 North
Logan, Utah 84321-1784
For all returns, the customer must fill out a “Statement of Product Cleanliness and
Decontamination” form and comply with the requirements specified in it. The form is available
from our website at www.campbellsci.com/repair. A completed form must be either emailed to
repair@campbellsci.com or faxed to (435) 227-9106. Campbell Scientific is unable to process any
returns until we receive this form. If the form is not received within three days of product receipt
or is incomplete, the product will be returned to the customer at the customer’s expense.
Campbell Scientific reserves the right to refuse service on products that were exposed to
contaminants that may cause health or safety concerns for our employees.

Safety
DANGER — MANY HAZARDS ARE ASSOCIATED WITH INSTALLING, USING, MAINTAINING, AND WORKING ON OR AROUND TRIPODS,
TOWERS, AND ANY ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC. FAILURE
TO PROPERLY AND COMPLETELY ASSEMBLE, INSTALL, OPERATE, USE, AND MAINTAIN TRIPODS, TOWERS, AND ATTACHMENTS, AND
FAILURE TO HEED WARNINGS, INCREASES THE RISK OF DEATH, ACCIDENT, SERIOUS INJURY, PROPERTY DAMAGE, AND PRODUCT FAILURE.
TAKE ALL REASONABLE PRECAUTIONS TO AVOID THESE HAZARDS. CHECK WITH YOUR ORGANIZATION'S SAFETY COORDINATOR (OR
POLICY) FOR PROCEDURES AND REQUIRED PROTECTIVE EQUIPMENT PRIOR TO PERFORMING ANY WORK.
Use tripods, towers, and attachments to tripods and towers only for purposes for which they are designed. Do not exceed design limits. Be
familiar and comply with all instructions provided in product manuals. Manuals are available at www.campbellsci.com or by telephoning
(435) 227-9000 (USA). You are responsible for conformance with governing codes and regulations, including safety regulations, and the
integrity and location of structures or land to which towers, tripods, and any attachments are attached. Installation sites should be evaluated
and approved by a qualified engineer. If questions or concerns arise regarding installation, use, or maintenance of tripods, towers,
attachments, or electrical connections, consult with a licensed and qualified engineer or electrician.
General
lPrior to performing site or installation work, obtain required approvals and permits. Comply with all governing structure-height
regulations, such as those of the FAA in the USA.
lUse only qualified personnel for installation, use, and maintenance of tripods and towers, and any attachments to tripods and
towers. The use of licensed and qualified contractors is highly recommended.
lRead all applicable instructions carefully and understand procedures thoroughly before beginning work.
lWear a hardhat and eye protection, and take other appropriate safety precautions while working on or around tripods and towers.
lDo not climb tripods or towers at any time, and prohibit climbing by other persons. Take reasonable precautions to secure tripod
and tower sites from trespassers.
lUse only manufacturer recommended parts, materials, and tools.
Utility and Electrical
lYou can be killed or sustain serious bodily injury if the tripod, tower, or attachments you are installing, constructing, using, or
maintaining, or a tool, stake, or anchor, come in contact with overhead or underground utility lines.
lMaintain a distance of at least one-and-one-half times structure height, 20 feet, or the distance required by applicable law,
whichever is greater, between overhead utility lines and the structure (tripod, tower, attachments, or tools).
lPrior to performing site or installation work, inform all utility companies and have all underground utilities marked.
lComply with all electrical codes. Electrical equipment and related grounding devices should be installed by a licensed and qualified
electrician.
Elevated Work and Weather
lExercise extreme caution when performing elevated work.
lUse appropriate equipment and safety practices.
lDuring installation and maintenance, keep tower and tripod sites clear of un-trained or non-essential personnel. Take precautions to
prevent elevated tools and objects from dropping.
lDo not perform any work in inclement weather, including wind, rain, snow, lightning, etc.
Maintenance
lPeriodically (at least yearly) check for wear and damage, including corrosion, stress cracks, frayed cables, loose cable clamps, cable
tightness, etc. and take necessary corrective actions.
lPeriodically (at least yearly) check electrical ground connections.
WHILE EVERY ATTEMPT IS MADE TO EMBODY THE HIGHEST DEGREE OF SAFETY IN ALL CAMPBELL SCIENTIFIC PRODUCTS, THE CUSTOMER
ASSUMES ALL RISK FROM ANY INJURY RESULTING FROM IMPROPER INSTALLATION, USE, OR MAINTENANCE OF TRIPODS, TOWERS, OR
ATTACHMENTS TO TRIPODS AND TOWERS SUCH AS SENSORS, CROSSARMS, ENCLOSURES, ANTENNAS, ETC.

Table of contents
1. Introduction 1
2. Precautions 2
3. Initial inspection 2
3.1 Inspect packaging 2
3.2 Enclosure supply kit 2
3.3 Tools list (for tripod, mast, enclosures, and crossarms) 3
4. QuickStart 4
4.1 Install system components 4
4.2 Install the enclosure 4
4.3 Complete the installation 4
5. Specifications 5
6. Installation 6
6.1 Mounting equipment inside the enclosure 7
6.1.1 Enclosures with one or two 1.5-inch conduits 7
6.1.2 Enclosures with individual compression fittings 10
6.2 Attaching an enclosure to a tripod mast 12
6.3 UT6, UT10, UT20, and UT30 tower installation 15
6.4 Mounting an enclosure on a tripod leg base 17
6.5 Mounting more than one enclosure on a tripod leg 21
6.6 Pole mount 21
7. Maintenance 24
7.1 When to replace desiccant 24
7.1.1 Humidity indicator card 24
7.1.2 Optional CS210 humidity sensor 24
7.2 Resistance to weathering 24
7.2.1 Clear acrylic paint 25
7.2.2 Primer and white paint 25
Appendix A. Door switch 26
A.1 Installation procedure 26
Table of Contents - iv

A.2 Example program 29
Appendix B. DIN-rail mounting kits 31
B.1 Introduction 31
B.2 Installation procedure 31
Appendix C. Mounting kits 37
C.1 Hinged enclosure stack mounting kit overview 37
C.2 Hinged enclosure stack mounting kit installation 39
C.3 Enclosure leg stack mounting kit overview 40
C.4 Enclosure leg stack mounting kit installation 43
Appendix D. Keeping insects out of the enclosure 44
Campbell Scientific regional offices 45
Table of Contents - v

1. Introduction
Environmental enclosures protect data loggers and peripherals from water and most pollutants.
Campbell Scientific standard enclosures include the ENC10/12, ENC10/12R, ENC12/14, ENC14/16,
and ENC16/18. For cable entry, Campbell Scientific offers a choice of one 1.5-inch diameter
conduit, two horizontally-arranged 1.5-inch diameter conduits, two vertically-arranged 1.5-inch
conduits (ENC16/18 only), or individual compression fittings. Multiple cables can use the
conduit(s) whereas each compression fitting only allows a single cable to enter the enclosure.
The individual compression fittings provide a more water-tight seal.
Besides standard enclosures, Campbell Scientific offers prewired enclosures that combine
flexibility with ease of use. Prewired enclosures include the PWENC12/14, PWENC14/16, and
PWENC16/18. Customers have the flexibility to choose their system components, but installation
is easy because sensors are simply attached to prewired connectors on the outside of the
enclosure.
Prewired enclosures are shipped with the same enclosure supply kit (Enclosure supply kit (p. 2))
and use the same brackets for mounting to a tripod or a tower (Attaching an enclosure to a
tripod mast (p. 12)). The maintenance information (When to replace desiccant (p. 24) and
Resistance to weathering (p. 24)) is also applicable to prewired enclosures.
Campbell Scientific also offers a variety of factory installed bulkhead antenna cables. These
cables provide a connector for an antenna on the outside of the enclosure used by a modem,
radio, or a satellite transmitter.
Campbell Scientific enclosures are manufactured with non-corrosive polyester and reinforced
with fiberglass. These white UV-stabilized enclosures reflect solar radiation, reducing
temperature gradients inside the enclosure without requiring a separate radiation shield. A door
gasket, external ground lug, stainless steel hinge, and lockable hasp are included. Campbell
Scientific enclosures were rated NEMA 6P before being modified to include conduit(s) or
compression fittings.
Data loggers, peripherals, and brackets are mounted to an internal plate punched with a grid of
half-inch-on-center holes.
An internal backplate is included with each ENC10/12, ENC10/12R, ENC12/14, and ENC14/16
enclosure. Two internal mounting plate options are offered for the ENC16/18. The –SB option
provides a backplate similar to the one included with the other enclosures. The –EL and –ER
options provide both a backplate and a sideplate.
Enclosures 1

2. Precautions
lREAD AND UNDERSTAND the Safety section at the front of this manual.
lEnsure structural integrity of the tripod, mast, or pole during setup and weather extremes
to minimize the chance of damaging the enclosure or instruments. Read all instructions
carefully.
lAlways use the putty from the enclosure supply kit to seal the conduit opening to prevent
moisture and insects from entering the enclosure.
lUse the desiccant pack from the enclosure supply kit to lower the humidity inside the
enclosure.
lEnsure the enclosure is connected to Earth ground.
3. Initial inspection
3.1 Inspect packaging
Upon receiving the enclosure, inspect the packaging and contents for damage. Claims for
shipping damage must be filed with the shipping company.
Locate the packing slip for the order and compare the items listed on the packing slip to the
items that were actually shipped. Report any discrepancies to Campbell Scientific.
3.2 Enclosure supply kit
Each enclosure is shipped with a sealed plastic bag containing an Enclosure Supply Kit. This kit
provides the materials used to seal and desiccate the enclosures. Please note that some of the
items should be saved for future use. The contents of the enclosure supply kit include:
Qty. PN Description
8 505 #6-32 x .375 in. screws
8 6044 grommets
4 2376 3 cm cable tie tabs
6 2207 4 in. cable ties
Enclosures 2

Qty. PN Description
6 4005 8 in. cable ties
1 28878 humidity indicator card
2 6596 4 oz container of sealing putty
4 4905 4-unit desiccant packs
1 6290 Phillips screwdriver
1 25745 PVC coupling
FIGURE 3-1. Components of the Enclosure Supply Kit
3.3 Tools list (for tripod, mast, enclosures,
and crossarms)
l1/2-in and 7/16-in open end wrenches
ladjustable wrench
lPhillips head screw drivers (medium, small)
lStraight bit screwdrivers (large, medium)
l30 cm (12 in) torpedo level
Enclosures 3

lside-cut pliers
lpencil
ltape measure
lcompass and site declination angle
lshovel
lsledge hammer (for driving ground rod and stakes)
lstep ladder
4. QuickStart
4.1 Install system components
When possible, install the data logger and other devices inside the enclosure prior to installing
the enclosure in the field. Doing so:
lEnsures all system components fit inside the enclosure
lAllows the components to be wired together in a lab environment resulting in cleaner
wiring and providing easier access to wire diagrams and component documentation
lAllows for the assembled system to be fully tested prior to deploying the system to the field
lShortens installation time in the field
4.2 Install the enclosure
Mount the enclosure to a solid support. Installation (p. 6) covers mounting the enclosure using
several different approved methods.
4.3 Complete the installation
lFinish connecting sensors
lAttach the enclosure to Earth ground
lConnect external power
Enclosures 4

5. Specifications
U-bolt spacing: ENC10/12 (all versions)- 37.6 cm (14.8 in)
ENC12/14 (all versions)- 42.4 cm (16.7 in)
ENC14/16 (all versions)- 47.8 cm (18.8 in)
ENC16/18 (all versions)- 53.2 cm (20.9 in)
Conduit size
(options “–SC”, “–DC”,
“–VC”): 1.5 in diameter
ENC10/12
Internal dimensions: 25.4 x 30.5 x 11.4 cm (10 x 12 x 4.5 in)
Weight: 4.1 kg (9 lb)
Entry seals (option “–ES”): 1 medium: 5.8 to 10 mm (0.231 to 0.394 in)
2 small: 3 to 7 mm (0.118 to 0.275 in)
ENC10/12R
Internal dimensions: 25.4 x 30.5 x 14 cm (10 x 12 x 5.5 in)
Weight: 4.1 kg (9 lb)
Entry seals (option “–ES”): 1 medium: 5.8 to 10 mm (0.231 to 0.394 in)
2 small: 3 to 7 mm (0.118 to 0.275 in)
ENC12/14
Internal dimensions: 30.5 x 35.6 x 14 cm (12 x 14 x 5.5 in)
Weight: 5 kg (11.2 lb)
Entry seals (option “–ES”): 2 medium: 5.8 to 10 mm (0.231 to 0.394 in)
4 small: 3 to 7 mm (0.118 to 0.275 in)
ENC14/16
Internal dimensions: 35.6 x 40.6 x 14 cm (14 x 16 x 5.5 in)
Weight: 6.2 kg (13.6 lb)
Entry seals (option “–ES”): 2 large: 6 to 13 mm (0.236 to 0.512 in)
2 medium: 5.8 to 10 mm (0.231 to 0.394 in)
2 small: 4.75 to 8 mm (0.187 to 0.312 in)
Enclosures 5

ENC16/18
Internal dimensions: 40.6 x 45.7 x 22.9 cm (16 x 18 x 9 in)
Weight: 7.7 kg (17 lb)
Entry seals (option “–ES”): 2 large: 6 to 13 mm (0.236 to 0.512 in)
2 medium: 5.8 to 10 mm (0.231 to 0.394 in)
2 small: 4.75 to 8 mm (0.187 to 0.312 in)
PWENC12/14
Internal dimensions: 30.5 x 35.6 x 14 cm (12 x 14 x 5.5 in)
Weight: 5 kg (11.2 lb)
PWENC14/16
Internal dimensions: 35.6 x 40.6 x 14 cm (14 x 16 x 5.5 in)
Weight: 6.2 kg (13.6 lb)
PWENC16/18
Internal dimensions: 40.6 x 45.7 x 22.9 cm (16 x 18 x 9 in)
Weight: 7.7 kg (17 lb)
EU conformity link: https://s.campbellsci.com/documents/us/compliance/eudoc_
weather-resistant-enclosures.pdf
6. Installation
6.1 Mounting equipment inside the enclosure 7
6.2 Attaching an enclosure to a tripod mast 12
6.3 UT6, UT10, UT20, and UT30 tower installation 15
6.4 Mounting an enclosure on a tripod leg base 17
6.5 Mounting more than one enclosure on a tripod leg 21
6.6 Pole mount 21
Enclosures 6

6.1 Mounting equipment inside the
enclosure
When mounting a data logger and other components inside an enclosure, care must be taken to
seal the enclosure openings to prevent moisture and insects from getting into the inside of the
enclosure. There are two main methods of passing system cabling into and out of the enclosure:
1.5-inch conduits and individual compression fittings for each cable.
6.1.1 Enclosures with one or two 1.5-inch conduits
1. If installing the optional Door-Open Indicator Kit, follow the procedure described in Door
switch (p. 26).
2. If installing the 5-inch or 9-inch DIN-Rail Mounting Kit, follow the procedure described in
DIN-rail mounting kits (p. 31). These kits facilitate wiring when many wires need to be
connected to one terminal.
3. If installing an enclosure stack mounting kit, follow the procedure described in Mounting
kits (p. 37). A stack mounting kit allows components to be raised 3 inches above the
backplate, allowing one component to be stacked above another to save space. Raising a
component from the backplate is also done to improve access to a component that may be
partially blocked by other, taller equipment mounted in the enclosure.
Enclosures 7

FIGURE 6-1. Securing components to the enclosure backplate
4. Use the #6 screws and plastic grommets to mount additional peripherals to the enclosure
backplate (see FIGURE 6-1 (p. 8)). Data loggers, power supplies, and most peripherals are
usually attached to the backplate prior to shipment from the factory or are supplied with
additional screws and grommets.
To insert the grommet, push the points of the flanges into the center of any square hole.
To remove a grommet without damage, remove the enclosure backplate and use pliers to
pinch the grommet flanges together.
NOTE:
Remember to allow space for cables and cable connectors.
5. If desired, use the PVC coupling included with the enclosure supply kit to reduce the 1.5-
inch conduit opening to 0.5 inches. Route the sensor cables through the enclosure conduit
to the data logger and peripheral terminal strips.
6. Connect sensors and peripherals to the data logger as described in the sensor and
peripheral manuals.
7. Strain relief the sensor wires to the data logger strain relief flanges with the 4-inch cable
ties.
8. Secure sensor and peripheral cables to the side of the enclosure using 8-inch cable ties and
cable tie tabs (see FIGURE 6-2 (p. 9)).
Enclosures 8

FIGURE 6-2. Securing cables to the cable tie tabs
NOTE:
The adhesive of the cable tie tab may not stick during extremely cold temperatures or
extremely high humidity. In these situations, fasten the cable tie tab to the backplate
using a #6 screw and grommet or run the cable tie through two of the enclosure
backplate holes.
NOTE:
Refer to FIGURE 6-3 (p. 10) for steps 9–12.
Enclosures 9

9. Place two of the desiccant packs from the Enclosure Supply Kit inside of the enclosure.
Reseal the other two inside the plastic bag to use later (see When to replace desiccant (p.
24)).
10. Remove the backing from the humidity indicator card and attach the card to the right side
of the enclosure.
11. Place a roll of putty around the sensor cables where they enter the enclosure.
12. Press the putty around the cables and into the conduit to form a tight seal.
FIGURE 6-3. An ENC12/14 with one 1.5-inch conduit houses a data logger and BP24
power supply. Door not shown.
6.1.2 Enclosures with individual compression fittings
1. If installing the optional Door-Open Indicator Kit, follow the procedure described in Door
switch (p. 26).
Enclosures 10

2. Use the #6 screws and plastic grommets to mount additional peripherals to the enclosure
backplate (see FIGURE 6-1 (p. 8)). Data loggers, power supplies, and most peripherals are
usually attached to the backplate prior to shipment from the factory or are supplied with
additional screws and grommets.
To insert the grommet, push the points of the flanges into the center of any square hole
(see A in FIGURE 6-1 (p. 8). To remove a grommet without damage, remove the enclosure
backplate and use pliers to pinch the grommet flanges together.
NOTE:
Remember to allow space for cables and cable connectors.
3. Route each sensor and peripheral cable through a unique compression fitting (FIGURE 6-4
(p. 11)).
FIGURE 6-4. Cable inserted into compression fitting
4. Connect sensors and peripherals to the data logger as described in the sensor and
peripheral manuals.
5. Strain relief the sensor wires to the data logger strain relief flanges with the 4-inch cable
ties.
6. Secure sensor and peripheral cables to the side of the enclosure using 8-inch cable ties and
cable tie tabs (see FIGURE 6-2 (p. 9)).
NOTE:
The adhesive of the cable tie tab may not stick during extremely cold temperatures or
extremely high humidity. In these situations, fasten the cable tie tab to the backplate
using a #6 screw and grommet or run the cable tie through two of the enclosure
backplate holes.
Enclosures 11

NOTE:
Refer to FIGURE 6-5 (p. 12) for steps 7–9.
7. Place two of the desiccant packs from the Enclosure Supply Kit inside of the enclosure.
Reseal the other two inside the plastic bag to use later (see When to replace desiccant (p.
24)).
8. Remove the backing from the humidity indicator card and attach the card to the right side
of the enclosure.
9. Rotate each compression fitting so that the fitting clamps tightly against the sensor cable
to provide a water-tight seal (see FIGURE 6-4 (p. 11)).
FIGURE 6-5. This ENC16/18 enclosure with the “–ES” option houses the equipment
commonly used in a GOES satellite system
6.2 Attaching an enclosure to a tripod mast
The “–MM” mount option is intended for mounting an enclosure to the mast of a tripod. An
enclosure ordered with this option will be shipped with a three-piece bracket mounted to the top
Enclosures 12

of the enclosure and an identical three-piece bracket mounted to the bottom of the enclosure
(see FIGURE 6-6 (p. 13), FIGURE 6-7 (p. 14), and FIGURE 6-8 (p. 14)).
Attach the enclosure to the mast as follows:
1. Position the enclosure on a side of the mast facing away from the equator.
2. Place the enclosure at the desired height, typically 1m (3ft) from the ground.
3. Use the furnished 2-inch U-bolts to secure the enclosure to the tripod mast.
4. Route the 14 AWG wire from the brass tripod ground clamp to the enclosure ground lug.
Strip 2.5 cm (1 in) of insulation from each end of the wire and insert the end of the wire
into the ground lugs and tighten.
FIGURE 6-6. An enclosure with the “–MM” mounting option attaches to a tripod mast via
U-bolts
Enclosures 13

FIGURE 6-7. This exploded view shows the components of a “–MM” bracket
FIGURE 6-8. An enclosure attached to a tripod mast
Enclosures 14
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