Delta OHM PMsense Manual de usuario

Operating manual

PM / CO2Transmitter

PM[B]sense

www.deltaohm.com

English

Keep for future reference.

PM[B]sense

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V1.3

TABLE OF CONTENTS

1 INTRODUCTION ........................................................................................ 3

2 TECHNICAL SPECIFICATIONS ................................................................... 3

3 INSTALLATION .........................................................................................

3.1 E

LECTRICAL CONNECTIONS

.......................................................................... 5

4 CONFIGURATION AND MEASUREMENT ..................................................... 8

PROPRIETARY PROTOCOL ........................................................................ 9

6 MODBUS-RTU PROTOCOL ........................................................................ 1

7 SAFETY INSTRUCTIONS .......................................................................... 19

8 ACCESSORIES ORDERING CODES ........................................................... 21

PM[B]sense

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V1.3

1 INTRODUCTION

PMsense is a PM1.0, PM2. and PM10 Par icula e Ma er ransmi er sui able for

ou door air quali y moni oring.

The dus par icles concen ra ion is measured using he laser sca ering principle.

An op ional CO

sensor can be in egra ed in he ransmi er (PMBsense).

The ransmi er has a digi al RS485 ou pu wi h MODBUS-RTU or ASCII proprie ary

pro ocol. A version wi h wo addi ional 0/4…20 mA (0…10 V on request when order-

ing) analog ou pu s is available. The wo analog ou pu s can be independen ly associ-

a ed wi h any of he measured parame ers.

The measuring circui of he ransmi er can be opera ed in con inuous mode or, in

order o ex end he PM sensor life ime, a cyclic in ervals (defaul opera ing mode).

The measuring cycle in erval is user configurable.

The ransmi er is main enance-free and has fas response, high sensi ivi y, excellen

s abili y and long opera ing life.

Models

Measurement Output

Model PM CO

RS48 Analog

(*)

PMsense-M √ √

PMsense-A √ √ √

PMBsense-M √ √ √

PMBsense-A √ √ √ √

(*)

Two analog ou pu s, s andard 0/4…20 mA, on reques 0…10 V.

PM[B]sense

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V1.3

2TECHNICAL SPECIFICATIONS

Particulate Matter

Measuring principle Laser sca ering

Measured pollu an s PM1.0, PM2.5 and PM10

Measuring range 0…1000 µg/m

(for each pollu an )

Par icle size de ec ion range ∅ 0.3…10 µm

Lineari y error < 5%

Repea abili y < 3%

Sensor warm up ime 15 s

Sensor life ime 5 years approx. in 5 minu es cyclic opera ing mode (defaul )

> 10,000 hours in con inuous opera ing mode (1 meas./s)

Tempera ure drif < 0.01 µg/m

/°C

(only PMBsense…)

Measuring principle Double waveleng h NDIR

Measuring range 0…5000 ppm

Accuracy ±(50 ppm+3% of measuremen ) @ 25 °C and 1013 hPa

Response ime < 120 s (air speed= 2 m/s)

Long- erm s abili y 5% of measuremen / 5 years

Tempera ure drif 1 ppm/°C

General specifications

Ou pu RS485 wi h Modbus-RTU or ASCII proprie ary pro ocol

Only PMsense-A: 2 x analog 4…20 mA (R

Lmax

= 500 Ω); on

reques 2 x 0…10 V (R

Lmin

= 10 kΩ)

Power supply 7…30 Vdc

(15…30 Vdc for 0…10 V analog ou pu s)

Power consump ion 25 mA @ 24 Vdc during measuremen

4 mA in s and-by (only for cyclic opera ing mode)

The indica ed consump ion does no include he consump ion

due o he analog ou pu s

Connec ion M12 8-pole circular connec or

Opera ing condi ions -20…+70 °C / 0…95 %RH / 500…1500 hPa

Housing ma erial Polycarbona e

Pro ec ion degree Housing equipped wi h a rain-proof and UV resis an inle air

fil er – IP 53

Dimensions 120 x 94 x 71 (excluding M12 connec or)

Weigh 330 g

PM[B]sense

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V1.3

3INSTALLATION

The ransmi er is equipped wi h a bracke wi h U-bol for he fixing o a Ø40…50 mm

mas . I can be fixed o a wall using he bracke only, by removing he U-bol .

Fig. 3.1: transmitter description

3.1 E

LECTRICAL CONNECTIONS

The ransmi er has a M12 8-pole circular connec or and uses he CPM12-8PM... op-

tional cables, wi h M12 8-pole connec or on one side and open wires on he o her side.

456

81 2

Fig. 3.2: connectors pinout

Transmi er male

connec or

(ex ernal view)

Connec or

Fixing b

racke wi h

bol

Air ou le

Air inle

Cable female connec or

(ex ernal view)

Connec or reference

PM[B]sense

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V1.3

Connector

pin N° Function CPM12-8PM…

wire color

1 Power supply nega ive (GND) Blue

2 Power supply posi ive (+Vdc) Red

3 No used ---

4 RS485 A/- Brown

5 RS485 B/+ Whi e

6 Digi al and analog ou pu s ground (SGND)* Grey

7 Analog ou pu 1 posi ve (AOUT1, only PM[B]sense-A) Yellow

8 Analog ou pu 2 posi ve (AOUT2, only PM[B]sense-A) Green

Cable shield ** Black ( hick wire)

* The ou pu ground (SGND) and he nega ive of he power supply (GND) are shor -circui ed

inside he ransmi er.

* The cable shield is no connec ed o he M12 connec or.

To ensure a good noise immuni y, i is recommended o connec he cable shield o

ground (GND).

RS48 connection:

By defaul , he ins rumen has MODBUS address 1 and communica ion parame ers

19200, 8E1. Differen parame ers can be se using he proprie ary pro ocol or he

MODBUS-RTU pro ocol.

220Ω

220Ω ShieldShield

Lmax = 1200m

B/+

A/-

B/+

A/-

SGND

GND

+Vdc

B/+

A/-

SGND

Fig. 3.3: RS48 connection

Power supply

7…30 Vdc

CPM12-8PM… cable

PLC, da a logger or

RS485/USB or RS485/RS232

conver er for PC

O her sensors wi h

RS485 ou pu

Termina ion Termina ion

PM[B]sense

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V1.3

Current analog output (only PM[B]sense-A):

By defaul , he curren analog ou pu s are 4…20 mA, wi h:

4 mA = 0 µg/m

20 mA = 1000 µg/m

The analog ou pu 1 is associa ed by defaul o PM2.5. The analog ou pu 2 is associ-

a ed by defaul o PM10.

Wi h he commands of he proprie ary pro ocol i is possible o associa e he analog

ou pu s o differen parame ers, se he range 0…20 mA for he ou pu and reverse he

direc ion of he ou pu , so ha he ou pu decreases as he measuremen increases.

In case of measuremen error, he ou pu goes o 22 mA.

0/4...20 mA

OUT1

0/4...20 mA

OUT2

SGND

AOUT1

GND

+Vdc +

AOUT2

Fig. 3.4: current analog outputs connection

Voltage analog output (optional, only PM[B]sense-A):

By defaul , he vol age analog ou pu s are 0…10 V, wi h:

0 V = 0 µg/m

10 V = 1000 µg/m

The analog ou pu 1 is associa ed by defaul o PM2.5. The analog ou pu 2 is associ-

a ed by defaul o PM10.

Wi h he commands of he proprie ary pro ocol i is possible o associa e he analog

ou pu s o differen parame ers, se he range 2…10 V for he ou pu and reverse he

direc ion of he ou pu , so ha he ou pu decreases as he measuremen increases.

In case of measuremen error, he ou pu goes o 11 V.

SGND

AOUT1

0...10 V

OUT1

0...10 V

OUT2

GND

+Vdc

AOUT2

Fig. 3. : voltage analog outputs connection

Power supply 12…30 Vdc

Lmax

= 500 Ω

CPM12-8PM… cable

Power supply 15…30 Vdc

CPM12-8PM… cable

Lmin

= 10 kΩ

PM[B]sense

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V1.3

4CONFIGURATION AND MEASUREMENT

The configura ion of he ins rumen and he reading of he measuremen s can be done

via he RS485 serial ou pu , bo h wi h he proprie ary pro ocol and wi h he MODBUS-

RTU pro ocol.

In he firs 10 seconds af er he ins rumen power on, i is always ac ive he proprie-

ary pro ocol. Af er 10 seconds from power on, he opera ing pro ocol is ac iva ed,

which by defaul is he MODBUS-RTU pro ocol.

I is possible o keep he proprie ary pro ocol ac ive even af er 10 seconds from power on

by sending, before he 10 seconds expire, he command @ of he proprie ary pro ocol.

The proprie ary pro ocol can be se as opera ing pro ocol by means of he DP0 command.

The commands of he proprie ary pro ocol and he regis ers of he MODBUS-RTU pro-

ocol are described in de ail in he following chap ers.

Particulate Matter measurement modes:

The ransmi er can perform he PM measuremen in con inuous mode or, in order o

ex end he sensor life ime, a cyclic in ervals (defaul ).

In he measuremen mode a cyclic in ervals, he PM sensor is ac iva ed periodically

for he ON ime. The measuremen is made available af er 70 seconds from sensor ac-

iva ion (warm-up ime). A he end of he ON ime, he measuremen is "frozen" and

he sensor is deac iva ed un il he se cyclic measuremen in erval expires.

Fig. 4.1: Measurement mode at cyclic intervals

The measuremen mode, he cycle in erval and he sensor ON ime can be configured

respec ively by using he CPLS, CPLP and CPLO commands of he proprie ary pro ocol

or he holding regis ers wi h address 15, 16 and 18 of he MODBUS-RTU pro ocol.

The ransmi er provides hree ypes of measuremen s:

•average over a 10 seconds in erval, upda ed every second;

•average over a 60 seconds in erval, upda ed every 10 seconds;

•average over a 15 min in erval, upda ed every minu e.

For he measuremen mode a cyclic in ervals, he cycle in erval and he ON ime

mus be se consis en ly wi h he desired averaging in erval.

Status of the transmitter:

There are wo LEDs on he in ernal elec ronic board of he ransmi er: he green LED

indica es he presence of he ex ernal power supply (blinks once per second), he red

LED indica es he presence of any measuremen errors (normally off, i blinks wice

per second if a leas one of he measured parame ers is in error).

ON ime

Cycle in erval

Sensor ON

Sensor OFF

PM[B]sense

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V1.3

PROPRIETARY PROTOCOL

To use he proprie ary pro ocol, i is necessary o connec he ins rumen o he PC via

a RS485/USB (e.g. RS51K) or RS485/RS232 conver er and use a s andard serial

communica ion program. In he serial communica ion program, se he COM por

number o which he ins rumen is connec ed and he communica ion parame ers as

follows:

•If he MODBUS-RTU pro ocol is se as he opera ing pro ocol in he ins rumen

(defaul ), se he Baud Ra e 57600 and he parame ers 8N2 in he serial commu-

nica ion program, hen power cycle he ins rumen and send he command @

wi hin 10 seconds from he ins rumen power on.

•If he proprie ary pro ocol is already se as he opera ing pro ocol in he ins ru-

men , i is possible o opera e wi h Baud Ra e 57600 and parame ers 8N2 by

sending he command @ wi hin 10 seconds from he ins rumen power on, or

you can le he 10 seconds pass wi hou sending he command @ and opera e

wi h he communica ion parame ers se in he ins rumen (defaul 19200, 8E1).

To change he ins rumen configura ion, he serial command CAL USER ON mus be

sen firs ( he ins rumen replies wi h USER CAL MODE ON). The command CAL USER ON

is au oma ically disabled af er a few minu es of inac ivi y. If he se ings should be only

read, he command CAL USER ON is no required.

Below is he lis of he serial commands.

Instrument information:

Command Reply Description

G0 Model Ins rumen model

G1 &Revision| Ins rumen hardware revision

G2 SN=nnnnnnnn Ins rumen serial number

G3 Firm.Ver.=x.y Ins rumen firmware revision

G4 Firm.Da e=yyyy/mm/dd Da e of firmware revision

GC Fac .Calib.Da e= yyyy/mm/dd

User.Calib.Da e= yyyy/mm/dd

Cal.Mode=Factory or User

Da e of fac ory calibra ion

Da e of user calibra ion (CO

only)

Type of calibra ion ac ive (CO

only)

Protocol:

Command Reply Description

@ &| Keeps he proprie ary pro ocol opera ional even af er 10

seconds from ins rumen power on. I mus be sen wi hin

10 seconds from ins rumen power on.

DPn &| Se s he opera ing pro ocol:

Proprie ary if n=0

MODBUS-RTU if n=1

Default : MODBUS-RTU (n=1)

GP & n| Reads he opera ing pro ocol se in he ins rumen .

SM &| Ac iva es he MODBUS-RTU pro ocol immedia ely.

CMAn &| Se s he ins rumen address for he MODBUS-RTU pro-

ocol o n.

The address should range wi hin 1 and 247.

Default : 1

RMA & n| Reads he ins rumen address for he MODBUS-RTU pro-

ocol.

PM[B]sense

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V1.3

Note: af er sending he DP1 command, he ins rumen remains wi h he proprie ary pro ocol.

Send he command SM o ac iva e he MODBUS-RTU pro ocol immedia ely, or power cycle he

ins rumen .

RS48 communication parameters:

Command Reply Description

CMBn &| Se s he Baud Ra e:

1200 if n=0

▪

19200 if n=4

2400 if n=1

▪

38400 if n=5

4800 if n=2

▪

57600 if n=6

9600 if n=3

▪

115200 if n=7

Default : 19200 (n=4)

RMB & n| Reads Baud Ra e se ing

CMPn &| Se s pari y and s op bi s:

8N1 if n=0 [No pari y, 1 s op bi ]

8N2 if n=1 [No pari y, 2 s op bi s]

8E1 if n=2 [Even pari y, 1 s op bi ]

8E2 if n=3 [Even pari y, 2 s op bi s]

8O1 if n=4 [Odd pari y, 1 s op bi ]

8O2 if n=5 [Odd pari y, 2 s op bi s]

The number of da a bi s is fixed o 8.

Default : 8E1 (n=2)

RMP & n| Reads he se ing of pari y and s op bi s.

CMWn &| Se s wai ing ime af er ransmission wi h MODBUS-RTU

pro ocol:

Immedia e recep ion if n=0 (viola es pro ocol)

Wai ing 3.5 charac ers if n=1 (respec s pro ocol)

Default : Immedia e recep ion (n=0)

RMW & n| Reads he se ing of wai ing ime af er ransmission wi h

MODBUS-RTU pro ocol.

PM measurement settings:

Command Reply Description

CPLSn &| Se s he PM measuremen mode:

Con inuous if n=0

A cyclic in ervals if n=1

Default : A cyclic in ervals (n=1)

RPLS & n| Reads he se ing of he PM measuremen mode.

CPLPn &| Se s he cycle in erval for he measuremen mode a cy-

clic in ervals.

Default : 300 (=5 min)

RPLP & n| Reads he se ing of he cycle in erval for he measure-

men mode a cyclic in ervals.

CPLOn &| Se s he sensor ON ime for he measuremen mode a

cyclic in ervals o n seconds.

I mus be grea er han 70 s (warm-up ime).

Default : 71

RPLO & n| Reads he se ing of he sensor ON ime for he measure-

men mode a cyclic in ervals.

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