Itsensor Lm3485 Pyrano Meter Pyra-485 User Manual (+ PDF)

itsensor LM3485 Pyrano Meter PYRA-485 User Manual

Contents hide

1 GENERAL DESCRIPTION

10 Documents / Resources

10.1 References

11 Related Posts

GENERAL DESCRIPTION

PYR1-485 and PYR2-485 are ISO 9060:2018 CLASS B (First Class) and CLASS C (Second Class) pyranometers respectively, with RS485 bus interface with the well known industry standard protocol Modbus RTU.

FEATURES

	PYR1-485	PYR2-485
Measurements: spectral range input irradiance range	300 ÷ 2900nm 0 ÷ 1600 W/m2
Response time	< 20 sec	< 25 sec
Temperature response	< ± 2 % (-10 to +40°C)	< ± 5 % (-10 to +40°C)
Zero offse Thermal radiation (at 200 W/m2 ) Temperature change (5 k/h)	<14Wm2	<20Wm2
Resolution Smallest detectable change
Outputs serial	RS485, standard Modbus RTU protocol 1W/m
Output resolution:	± 4 W/m²	± 8 W/m²
Output precision Tilt response (0 ÷ 90°) Temp. Response ( ∆t = 50K)	< ± 2% < 4%	< ± 4% < 8%
Working temperature:	-40 ÷ +80 °
Supply	C 9 ÷ 30 Vdc protected against short circuit
Encapsulation:	Quartz [k5]
Special glass transparent to	Double glass dome 0,3 ÷ 3,0 μm	Single glass dom 0,3 ÷ 3,0 μm
Case	Anodized aluminum
Connectors	standard M8 4 pin female
Dimensions	Φ 162 x h 104 mm

PIECE’S LIST

Pyranometer with sun screen
M8 4pin male connector
Instruction sheet
Calibration Report

CALIBRATION

Date:.……………………………………….
Operator: ……………………………….
S/N:………………………………………….
Modbus Node: ………………………

DIMENSIONS

DIMENSIONS diagram

CONNECTIONS

See the table below. Once connected the irradiance values comes out instantly (Fig.1 has correspondence with the rear side where you have to connect wires)

# pin	SolSol Cable Color	Description
1	Green	RS485+/B, communication bus non inverting bus signal
2	Red	Power supply 12 ÷ 30Vdc
3	Green/White	RS485-/A, communication bus inverting bus signal
4	Black	Power supply / 0 Vdc

CONNECTIONS diagram
Fig.1 Front and back view of male connector

Data is accessible through Modbus’s functions by 16 bits units called “registers”. In the current implementation of PYRA-485 these registers are available:

Register hex	Register dec	Description			Access	NV save
0x0101	257	Current irradiance level [W/m²]			R
0x8802	34818	Current body temperature [°C], 2-complent value, fixed point 14.2 format (14 bits integer, 2 bits fractional)			R
0x0103	259	Status, bit coded			R
			Bit	Description
			0	Factory calibration/configuration 1 = OK; 0 = need recalibration
			1	Not volatile parameters 1 = OK; 0 = default loaded, need to be changed/saved
			2	Not used
			3	Not used
			4	Not used
			5	Watchdog 1 = reset by watchdog timeout occurred; 0 = normal operation
				all undefined bits read as 0
0x8001	32769	Serial number, least significant word			R
0x8002	32770	Serial number, most significant word			R
0x8003	32771	Firmware main version, hexadecimal			R
0x8004	32772	Firmware minor version, hexadecimal			R
0x8005	37773	Node address, range 1 ¸ 247, decimal, default 1			R/W	Y
0x8006	32774	Bitrate, coded, range 0 ¸ 4, decimal, default 1 0 – 9600 bps 1 – 19200 bps 2 – 38400 bps 3 – 57600 bps 4 – 115200 bps			R/W	Y
0x8007	32775	Serial configuration, coded, range 0 ¸ 3, decimal, default 0 0 – 8N1 (8 bit / no parity / 1 stop bit) 1 – 8E1 (8 bit / even parity / 1 stop bit) 2 – 8O1 (8 bit / odd parity / 1 stop bit) 3 – 8N2 (8 bit / no parity / 2 stop bit)			R/W	Y
0x8008	32776	Serial reply delay [ms], range 0 ¸ 100, decimal, default 1			R/W	Y
0x8101	33025	Not volatile params save command, write 1 to execute (then wait 1 s before to send next message)			W
0x8102	33026	Software reset command, write 1 to execute (then wait 6 s before to send next message)			W

CALIBRATION

It is recommended to send to factory for verifying calibration after 2 years of outdoor work

MAINTENANCE

Reading is reduced if the dome is not clean.

Keep the dome clean using water or alcohol.
Keep instrument levelled.
Recalibrate every 2 years.

INSTALLATION

It is recommended to install the product at a minimum height of 180cm above the ground.
INSTALLATION diagram

There are the following fixing types:

With M5 screw on flat bases;
Bracket on pole;
Inclinable bracket in degrees

fixing diagrqam
M5 screw on flat bases *screw’s thread must be 0,4cm + distance between the pyranometer and the base. (approx. 1,5 – 1,8 cm long.)

USER INFORMATION

Read this document carefully before installation.
Warranty is 2 years from date of invoice, subject to correct installation and use. Soluzione Solare accepts no liability for any loss or damage arising from incorrect use of the product. This device conforms to the EU ‘CE’ guideline 89/336/EEC73/23/EEC. Unauthorised modifications may void the warranty and CE validity. Visit our website for the latest product support information.