SIAP+MICROS t018 TTP Guide

t018 TTP
Rain and snow Presence Transducer
User Manual and maintenance

User manual and maintenance
t018-di TPP.docx
05/06/2023 2Vers.: 1.0
Summary
1Introduction ................................................................................................................................................ 3
2Technical specificaion ................................................................................................................................ 4
2.1 Operation scheme ............................................................................................................................. 5
3Installation and maintenance..................................................................................................................... 6
3.1 Installation.......................................................................................................................................... 6
3.2 Maintenance ...................................................................................................................................... 6
4Electrical connection.................................................................................................................................. 7
4.1 Connector pinout ............................................................................................................................... 7
4.2 Connection cable ............................................................................................................................... 7
5Generic information ................................................................................................................................... 8
5.1 Safety................................................................................................................................................. 8
5.2 Appropriate use of the equipment ..................................................................................................... 9
5.3 Storage .............................................................................................................................................. 9
5.4 Moving ............................................................................................................................................... 9
5.5 Disposal information .......................................................................................................................... 9
6Revision history ....................................................................................................................................... 10

User manual and maintenance
t018-di TPP.docx
05/06/2023 3Vers.: 1.0
1Introduction
TPP is an excellent easy-to-use device, which allows to detect rainfall, establishing the start and end of the
precipitation in a very precise way, not being activated by dew or water condensation. The sensor indeed has
been thoroughly designed in order to manufacture a very accurate device, capable of measuring also very
short and small precipitation. TPP sensing element is composed of two rolled electrodes, one of whose is
pierced and slightly sloped, and they are placed at short distance one from the other. In presence of water the
system bursts in electrical conductivity, and a heater located behind the lower rolled surface provides
evaporation of the rain residual, dew or ice. The sensor can detect not only the presence of rain, but even the
presence of snow if properly configured (upon specific request). TPP is supplied with power and signal cable
(4 m).
Ordering codes:
Sensor Natural Output:............................................t018-TTP-N

User manual and maintenance
t018-di TPP.docx
05/06/2023 4Vers.: 1.0
2Technical specificaion
Measurement performance
Transducer
Laminated electrodes and heater
Measurement range
ON / OFF rain/snow presence time
Sensibility
1 s
Accuracy
1 s
Heating system power
10 W max
Operating conditions
Temperature
-10 ÷ +70 °C
Humidity
0 ÷ 100 %
Outputs
Natural
Contatto Relé
Maximum current reed contact output
1000 mA
Maximum tension reed contact output
30 W
Power supply and Consumption
Voltage supply (versioni uscita non naturale)
6 ÷ 22 Vdc
Power consumption
Min
Typical
Max
Relay contact
15
Heater
250
Mechanical specifications
Protective body
Plastic material and stainless steel

User manual and maintenance
t018-di TPP.docx
05/06/2023 5Vers.: 1.0
Dimension:
H1 – maximum height: 285 mm
L1 – maximum lenght: 80 mm
P1 - depth: 80 mm
D1 – fixing diameter: 40 mm
Element:
A – sensitive element
B – fixing shank
C – connector
Weight: 410 g
2.1 Operation scheme

User manual and maintenance
t018-di TPP.docx
05/06/2023 6Vers.: 1.0
3Installation and maintenance
3.1 Installation
For correct installation, the monitoring station should be placed at a distance from the closest obstacle (pylons,
trees, buildings) equal to 10 times the height of the obstacle itself.
Normally, according to WMO standards, the installation height of the sensor must be between 1.25 and 2
meters.
As illustrated in the image below, the sensor must be fixed to the plastic stem with jumpers, or similar elements,
of 40mm diameter indiscriminately in any position of the standard Siap+Micros support bracket.
Note: when installing, pay attention not to position the TPP below elements which could drip during the drying
phase, distorting the detection of rain by the TPP itself.
3.2 Maintenance
This type of transducer does not require particular maintenance operations: periodic cleaning of the rain
detection plates is recommended, at least every 6 months or when necessary, to eliminate deposits of dirt
present between the plates themselves.

User manual and maintenance
t018-di TPP.docx
05/06/2023 7Vers.: 1.0
4Electrical connection
4.1 Connector pinout
Pin
Output
1
Vcc
2
Contact
3
Contact
4
GND
4.2 Connection cable
The connection cable supplied with the sensor is made with circular connectors with housing, 4x24 AWG
shielded cable and ferrules for connection to the data logger terminals. The sock is connected to the black
cable.
Pin
1
2
3
4
Cable
Red
White
Green
Black+Shield
Signal
Vcc
Contact
Contact
GND
Calza / Shield

User manual and maintenance
t018-di TPP.docx
05/06/2023 8Vers.: 1.0
5Generic information
The qualitative level of our instruments is the result of a continuous evolution of the product. This may cause
differences between what is reported in the manual and the instrument you have purchased.
Siap+Micros S.p.A. reserves the right to modify without notice technical specifications and dimensions to adapt
them to the needs of the product.
5.1 Safety
Please read these safety instructions carefully before using this product:
•The warranty will be void if the product is used differently from the instructions described in this manual.
•Any sign of tampering will void the warranty
•Use the devices only according to the instructions (environmental management, operation, wiring,
installation, etc.) provided in this manual
•The correct and safe operation of the device can only be guaranteed if the transport, storage, operation
and management of the device are compliant. This also applies to product maintenance.
•The device shall not be exposed to aggressive chemicals or solvents that could damage the plastic
casing and/or corrode the metal parts.
•Maintenance should only be performed by qualified and well trained personnel.
It is appropriate to carry out a careful risk assessment in relation to the context of installation and use of the
device by the installer considering the possible meteorological station in its complexity without being limited to
the sensor.
The instruments must be installed according to the rules of the trade, with equipment that complies with
applicable regulations and using supports correctly sized by qualified technicians and designed for the specific
purpose.
During installation operations, check the suitability of the surrounding environment and compliance with local
safety regulations.
The manufacturer declines all responsibility in case of failure due to negligence of the instructions, tampering,
uses not described in this manual, improper use, use by operators not trained.
Read the instructions and intended use carefully and be sure you understand before installing the device
Before starting the activities, check the integrity of the instrument to be installed, prepare the equipment
necessary for the work and wear the necessary PPE.
Take adequate measures to prevent the access of foreign personnel (untrained and uninformed) during the
installation, maintenance or replacement of the instrument.
Take precautions to avoid falling objects, both during the installation phases and during the operation of the
instrument.
Do not perform any activity in bad weather conditions.

User manual and maintenance
t018-di TPP.docx
05/06/2023 9Vers.: 1.0
During maintenance, particularly if the station is not frequented, visually check for the absence of dangerous
insects and, if not, use suitable insecticides.
Consider the presence of any animals near the station, if so, pay attention to them.
Use only SIAP+MICROS original spare parts.
The instrument is not classified suitable (according to Directive 2014/34/EU) for use in atmospheres with
potential explosion risk pursuant to Directive 99/92/EC..
SIAP+MICROS strives to minimize health and safety risks in all phases of the instrument's life, including
installation, use, maintenance, decommissioning and disposal.
5.2 Appropriate use of the equipment
Use the instrument for its intended purpose, do not use it for any other purpose or cause malfunctions and/or
damage.
5.3 Storage
If you do not plan to use the equipment for an extended period of time (at least one year) disconnect all cables
from the equipment, place it in a clear plastic bag along with a bag of desiccant salts and seal the bag with
tape. Put appropriate indication on the bag of the contents and weight of the equipment by inserting the wording
"HANDLE WITH CARE".
Store the instrument in an environment with a temperature between 0°C and 60°C with a humidity not
exceeding 80%. Make sure that the instrument is stored in a stable position and that it cannot be damaged or
moved by inexperience or carelessness. Do not stack other tools or weights. Do not place the instrument on
top of other instruments and in any case ensure the solidity and stability of the underlying support.
Non esporre, stoccare lo strumento in ambienti con presenza di vapori e/o gas corrosivi.
5.4 Moving
In order to avoid any damage to the device during transportation, please keep it in upright position without
shaking.
5.5 Disposal information
Electrical and electronic equipment marked with specific symbol in compliance with 2012/19/EU
Directive must be disposed of separately from household waste. European users can hand them
over to the dealer or to the manufacturer when purchasing a new electrical and electronic
equipment, or to a WEEE collection point designated by local authorities. Illegal disposal is
punished by law.
Disposing of electrical and electronic equipment separately from normal waste helps to preserve natural
resources and allows materials to be recycled in an environmentally friendly way without risks to human health.

User manual and maintenance
t018-di TPP.docx
05/06/2023 10 Vers.: 1.0
6Revision history
The following table shows the description of the changes made to this document.
Version
Date
Updates
1.0
05/06/2023
Current version of the document.
All the information content in this document are the current available at the printing phase. Siap+Micros S.p.A. reserve the rights to change
the specifications without any advance notice