Campbell 110PV User manual

Revision: 07/2020
Copyright © 2010 – 2020
Campbell Scientific
CSL I.D - 897

Guarantee
This equipment is guaranteed against defects in materials and workmanship.
We will repair or replace products which prove to be defective during the
guarantee period as detailed on your invoice, provided they are returned to us
prepaid. The guarantee will not apply to:

Equipment which has been modified or altered in any way without the
written permission of Campbell Scientific

Batteries

Any product which has been subjected to misuse, neglect, acts of God or
damage in transit.
Campbell Scientific will return guaranteed equipment by surface carrier
prepaid. Campbell Scientific will not reimburse the claimant for costs incurred
in removing and/or reinstalling equipment. This guarantee and the Company’s
obligation thereunder is in lieu of all other guarantees, expressed or implied,
including those of suitability and fitness for a particular purpose. Campbell
Scientific is not liable for consequential damage.
Please inform us before returning equipment and obtain a Repair Reference
Number whether the repair is under guarantee or not. Please state the faults as
clearly as possible, and if the product is out of the guarantee period it should
be accompanied by a purchase order. Quotations for repairs can be given on
request. It is the policy of Campbell Scientific to protect the health of its
employees and provide a safe working environment, in support of this policy a
“Declaration of Hazardous Material and Decontamination” form will be
issued for completion.
When returning equipment, the Repair Reference Number must be clearly
marked on the outside of the package. Complete the “Declaration of
Hazardous Material and Decontamination” form and ensure a completed copy
is returned with your goods. Please note your Repair may not be processed if
you do not include a copy of this form and Campbell Scientific Ltd reserves
the right to return goods at the customers’ expense.
Note that goods sent air freight are subject to Customs clearance fees which
Campbell Scientific will charge to customers. In many cases, these charges are
greater than the cost of the repair.
Campbell Scientific Ltd,
80 Hathern Road,
Shepshed, Loughborough, LE12 9GX, UK
Tel: [phone]
Fax: [phone]
Email: [e-mail]
www.campbellsci.co.uk

PLEASE READ FIRST
About this manual
Please note that this manual was originally produced by Campbell Scientific Inc. primarily for the North
American market. Some spellings, weights and measures may reflect this origin.
Some useful conversion factors:
Area: 1 in2(square inch) = 645 mm2
Length: 1 in. (inch) = 25.4 mm
1 ft (foot) = 304.8 mm
1 yard = 0.914 m
1 mile = 1.609 km
Mass: 1 oz. (ounce) = 28.35 g
1 lb (pound weight) = 0.454 kg
Pressure: 1 psi (lb/in2) = 68.95 mb
Volume: 1 UK pint = 568.3 ml
1 UK gallon = 4.546 litres
1 US gallon = 3.785 litres
In addition, while most of the information in the manual is correct for all countries, certain information
is specific to the North American market and so may not be applicable to European users.
Differences include the U.S standard external power supply details where some information (for
example the AC transformer input voltage) will not be applicable for British/European use. Please note,
however, that when a power supply adapter is ordered it will be suitable for use in your country.
Reference to some radio transmitters, digital cell phones and aerials may also not be applicable
according to your locality.
Some brackets, shields and enclosure options, including wiring, are not sold as standard items in the
European market; in some cases alternatives are offered. Details of the alternatives will be covered in
separate manuals.
Part numbers prefixed with a “#” symbol are special order parts for use with non-EU variants or for
special installations. Please quote the full part number with the # when ordering.
Recycling information
At the end of this product’s life it should not be put in commercial or domestic refuse but
sent for recycling. Any batteries contained within the product or used during the
products life should be removed from the product and also be sent to an appropriate
recycling facility.
Campbell Scientific Ltd can advise on the recycling of the equipment and in some cases
arrange collection and the correct disposal of it, although charges may apply for some
items or territories.
For further advice or support, please contact Campbell Scientific Ltd, or your local agent.
Campbell Scientific Ltd, 80 Hathern Road, Shepshed, Loughborough, LE12 9GX,
UK Tel: [phone] Fax: [phone]
Email: [e-mail]
www.campbellsci.co.uk

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.eu or by telephoning [phone] (UK). 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
•Prior 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.
•Use 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.
•Read all applicable instructions carefully and understand procedures thoroughly before beginning work.
•Wear a hardhat and eye protection, and take other appropriate safety precautions while working on or
around tripods and towers.
•Do 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.
•Use only manufacturer recommended parts, materials, and tools.
Utility and Electrical
•You 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.
•Maintain a distance of at least one-and-one-half times structure height, or 20 feet, or the distance
required by applicable law, whichever is greater, between overhead utility lines and the structure (tripod,
tower, attachments, or tools).
•Prior to performing site or installation work, inform all utility companies and have all underground utilities
marked.
•Comply with all electrical codes. Electrical equipment and related grounding devices should be installed
by a licensed and qualified electrician.
Elevated Work and Weather
•Exercise extreme caution when performing elevated work.
•Use appropriate equipment and safety practices.
•During 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.
•Do not perform any work in inclement weather, including wind, rain, snow, lightning, etc.
Maintenance
•Periodically (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.
•Periodically (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 1
3. Initial inspection 2
4. QuickStart 2
5. Overview 5
6. Specifications 6
7. Installation 7
7.1 Placement on a photovoltaic (PV) module 7
7.2 Mounting/cable strain relief 8
7.2.1 Adhesive mounting strip 8
7.2.2 Cable strain relief 8
7.2.3 Extreme sealing tape 9
7.3 Wiring 10
7.4 Data logger programming 12
7.4.1 Resistance measurement 12
7.4.2 Converting resistance measurement to temperature 12
8. Operation 13
8.1 Measurement details 13
8.2 Electrical noisy environments 14
8.3 Long cable lengths 14
9. Maintenance and troubleshooting 14
9.1 Troubleshooting 14
9.2 Maintenance 15
Appendix A. Importing Short Cut code into CRBasic Editor 16
Appendix B. Example programs 17
Appendix C. Sensor material properties 20
C.1 3M F9473PC adhesive 20
Table of Contents - i

1. Introduction
The 110PV temperature probe uses a thermistor to measure temperature from –40 to 135°C. It is
designed for measuring the back-of-photovoltaic (PV) module temperature but also can be used
to measure other surface temperatures. The 110PV is compatible with all Campbell Scientific data
loggers.
NOTE:
This manual provides information only for CRBasic data loggers. For retired Edlog data logger
support, see an older manual at www.campbellsci.com/old-manuals.
2. Precautions
lREAD AND UNDERSTAND the Safety section at the front of this manual.
lDo not use epoxy to secure the sensor head to a PV module.
lPrying the sensor head off will likely damage both the sensor and PV module; see Caution
at the end of Troubleshooting (p. 14).
lThe 110PV cable must be properly strain relieved after mounting the probe to the
measurement surface (Cable strain relief (p. 8)).
lPlacement of the cable inside a rugged conduit is advisable for long cable runs, especially
in locations subject to digging, mowing, traffic, use of power tools, animals, or lightning
strikes.
lSantoprene® rubber, which composes the black outer jacket of the 110PV cable, will
support combustion in air. It is used because of its resistance to temperature extremes,
moisture, and UV degradation. It is rated as slow burning when tested according to U.L. 94
H.B. and passes FMVSS302. However, local fire codes may preclude its use inside buildings.
110PV Surface Temperature Probe 1

3. Initial inspection
lUpon receipt of the 110PV, inspect the packaging and contents for damage. File damage
claims with the shipping company.
lThe model number, cable length, and cable resistance are printed on a label at the
connection end of the cable. Check this information against the shipping documents to
ensure the expected product and cable length are received.
4. QuickStart
A video that describes data logger programming using Short Cut is available at:
www.campbellsci.eu/videos/cr1000x-data logger-getting-started-program-part-3. Short Cut is
an easy way to program your data logger to measure the sensor and assign data logger wiring
terminals. Short Cut is available as a download on www.campbellsci.eu. It is included in
installations of LoggerNet, RTDAQ, PC400, or PC200W.
The following procedure also shows using Short Cut to program the 110PV.
1. Open Short Cut and click Create New Program.
2. Double-click the data logger model.
110PV Surface Temperature Probe 2

3. In the Available Sensors and Devices box, type 110PV. You can also locate the sensor in the
Sensors >Temperature folder. Double-click 110PV. The surface temperature defaults to
degree C. This can be changed by clicking the Temperature box and selecting one of the
other options. Enter the Cable Resistance. This value is unique for each 110PV, and is
printed on the heat shrink label attached to the sensor cable.
4. Click on the Wiring tab to see how the sensor is to be wired to the data logger. Short Cut
uses a 3-wire half bridge measurement, and therefore doesn’t use the blue, green, and
white wires. The wiring diagram can be printed now or after more sensors are added. Click
OK after wiring the sensor.
5. Repeat steps three and four for other sensors you want to measure. Click Next.
110PV Surface Temperature Probe 3

6. In Output Setup, type the scan rate, a meaningful table name, and the Data Output
Storage Interval.
7. Select the measurement and its associated output option.
8. Click Finish and save the program. Send the program just created to the data logger if the
data logger is connected to the computer.
9. If the sensor is connected to the data logger, check the output of the sensor in the data
logger support software data display in LoggerNet, RTDAQ, PC400, or PC200W to make
sure it is making reasonable measurements.
110PV Surface Temperature Probe 4

5. Overview
The 110PV can provide the photovoltaic (PV) module temperature for solar energy applications.
This measurement is useful since the output of a PV module is affected by its temperature. As the
temperature of the PV module increases, its output decreases.
The 110PV consists of a thermistor encased in an aluminium disk (FIGURE 5-1 (p. 6)). The
aluminium disk protects the thermistor and promotes heat transfer from surfaces. An adhesive
tab on the aluminium disk fastens the 110PV to the measurement surface. If the temperature may
exceed 70 °C, also use extreme sealing tape to secure the probe to the measurement surface.
Features:
lEasy to install—adhesive strips on the 110PV smooth face adhere to the back of a solar
panel or other device
lAluminium disk protects thermistor and promotes heat transfer from surfaces
lMakes accurate measurements in environments with heavy electromagnetic interference
lCompatible with Campbell Scientific CRBasic data loggers: CR6, CR3000, CR1000X, CR800
series, CR300 series, and CR1000
110PV Surface Temperature Probe 5

FIGURE 5-1. 110PV temperature probe
6. Specifications
Temperature range: –40 to 135 °C
Survival range: –50 to 140 °C
Accuracy1
Worst case: ±0.2 °C (–40 to 70 °C)
±0.5 °C (71 to 105 °C)
±1 °C (106 to 135 °C)
MaximumSteinhart-Hartlinearizationerror: 0.0024 °C at –40 °C
Maximum cable length: 304.8 m (1000 ft)
Disk diameter: 2.54 cm (1.0 in)
Overall probe length: 6.35 cm (2.5 in)
110PV Surface Temperature Probe 6

Overmoulded joint dimensions
Width: 1.12 cm (0.44 in)
Height: 1.47 cm (0.58 in)
Length: 5.72 cm (2.25 in)
Cable diameter: 0.622 cm (0.245 in)
Material
Disk:
Cable jacket:
Cable/probe connection:
Weight:
Anodized aluminium
Santoprene®
Santoprene®
90.7 g (0.2 lb) with 3.2 m (10.5 ft) cable
1The overall probe accuracy is a combination of the thermistor’s interchangeability specification, the accuracy of the
bridge resistor, and error of the Steinhart-Hart equation. The major error component is the interchangeability
specification (tolerance) of the thermistor. The bridge resistor has a 0.1% tolerance with a 10 ppm temperature
coefficient. Effects of cable resistance is discussed in Long cable lengths (p. 14).
7. Installation
If you are programming your data logger with Short Cut, skip Wiring (p. 10) and Data logger
programming (p. 12). Short Cut does this work for you. See QuickStart (p. 2) for a Short Cut
tutorial. This section discusses the following:
7.1 Placement on a photovoltaic (PV) module 7
7.2 Mounting/cable strain relief 8
7.3 Wiring 10
7.4 Data logger programming 12
7.1 Placement on a photovoltaic (PV)
module
The PV module may or may not have distinctive photocells. If the PV module does not have
distinctive photocells, center the sensor on the back of the PV module. If the module has several
distinctive photocells, center the sensor on the back of the photocell that is the middle of the PV
module.
110PV Surface Temperature Probe 7

7.2 Mounting/cable strain relief
CAUTION:
Before mounting, the installers need to wash their hands and then clean the back of the PV
module or other device with ethyl alcohol.
7.2.1 Adhesive mounting strip
An adhesive mounting strip is adhered to the flat surface of the aluminium disk. To mount the
sensor, remove the paper from the mounting strip and adhere it to the back of the PV module or
other device. The mounting strip must be adhered to a clean surface for its adhesive to function
properly.
CAUTION:
Do not use epoxy to secure the sensor head to a PV module.
7.2.2 Cable strain relief
The cable must be properly strain relieved after mounting the 110PV to the measurement surface.
To accomplish this, the 110PV comes with cable ties and a cable tie mount. A yellow label on the
cable indicates where the cable should be tied down (FIGURE 7-1 (p. 9)).
NOTE:
Placement of the cable inside a rugged conduit is advisable for cable runs over 4.5 m (15 ft),
especially in locations subject to digging, mowing, traffic, power tools, animals, or lightning
strikes.
110PV Surface Temperature Probe 8

FIGURE 7-1. 110PV strain relief label
7.2.3 Extreme sealing tape
If the temperature might exceed 70°C, extreme sealing tape is required to better secure the
sensor to the measurement surface.
To ensure that the sensor disk is adequately fastened to the measurement surface, use three
strips of extreme sealing tape in two places each:
1. Place a strip of tape across the sensor head, perpendicular to the cable and rub the tape
surface to remove bubbles. Rub as close as possible to the sensor disk.
CAUTION:
Do not place tape over the sensor moulding; only place tape on the metal disk
portion of the sensor.
110PV Surface Temperature Probe 9

2. Place the two other strips of tape on the ends of the sensor disk, perpendicular to the first
piece of tape and parallel to the cable then rub the tape surface into the module surface.
See the following figure.
FIGURE 7-2. Proper tape usage
7.3 Wiring
FIGURE 7-3 (p. 11) provides the schematic and Table 7-1 (p. 11) provides the connections to
Campbell Scientific data loggers. Either a 4-wire half bridge or 3-wire half bridge configuration
can be used to measure the 110PV. The 4-wire half bridge configuration is preferred because it
reduces cable errors. The 3-wire half bridge configuration uses fewer terminals.
110PV Surface Temperature Probe 10