Isishwankathelo

I-RTD ye-RTD yokukhusela i-barrier yokukhusela inokuguqula i-wire wire okanye ezintathu iimpawu ze-thermistor (RTD) kwiindawo ezinobungozi kwiimpawu ze-4-20mA zangoku kwaye zikhuphe kwindawo yokhuseleko. Inokuthi iqwalaselwe ngobukrelekrele, kwaye uluhlu lwangempela lokumelana ne-thermal lunokusetwa ngesoftware yekhompyuter. Inemisebenzi ye-alamu yokuqhawula ucingo kunye ne-alamu ephuma kuluhlu.

"*" imele uhlobo lwegalelo lwethermistor, kwaye imodeli ethile imelwe yikhowudi (jonga "Udidi loMqondiso woNgeniso kunye neTheyibhile yoRange" ngeenkcukacha).

Iindidi zesiginali yegalelo kunye noluhlu lomlinganiselo

Umzekelo: xa igalelo liyi-2 yamagalelo kunye ne-K-couple, ububanzi beqondo lokushisa ngu-0 ~ 1200 ℃, iziphumo ze-2 4 ~ 20mA, umbane we-20 ~ 35VDC, ngoko imodeli kufuneka ibe yi-PHD-22TT-1111 (0~1200℃).

Uluhlu lokulinganisa lunokusetwa kuluhlu oluchaziweyo lwe-0 ~ 1200℃ ngekhompyutha.

* Umbane wesikhululo sebhasi, nceda ubone isihlomelo ngeenkcukacha.

Inkcazo

Igalelo kwindawo eyingozi
Uphawu longeniso	Iingcingo ezimbini okanye ezintathu iimpawu zethermistor zocingo (bona "Udidi loMqondiso woNgeniso kunye neTheyibhile yoHlelo" ngeenkcukacha)
Igalelo loqhawulo	Ukungagqibeki "i-alamu ephantsi" inokuguqulwa ibe "kwi-alamu ephezulu" ngesoftware yoqwalaselo
Uluhlu lwemiqondiso	Uluhlu lokulinganisa oluhambelanayo lokumelana nokushisa
Uluhlu lomlinganiselo	Abasebenzisi benza uqwalaselo lwabo xa beodola, kwaye bayibonise kwinombolo yomsila okanye ngenye indlela.
Imveliso yecala lokhuseleko:
Umqondiso wemveliso	4 ~ 20mA
Umthamo womthwalo wemveliso	0~500Ω(inokwenziwa ngokwezifiso) Uhlobo olukhethiweyo lwemveliso yombane, ukumelana nomthwalo RL ≥ 330kΩ
Isalathisi se-LED	Luhlaza: Isalathisi samandla I-alam yoluhlu oluphantsi isibane esityheli silayitiwe, isibane esibomvu soluhlu oluphezulu sivuliwe
Ukuchaneka kwemveliso	Nceda ubhekisele "kuhlobo loMqondiso woNgeniso kunye neTheyibhile yoHlelo" ngeenkcukacha
Ixesha lokuphendula	Ukufikelela kwi-90% yexabiso lokugqibela ngaphakathi kwe-300ms
Ukukhukuliseka kobushushu	0.005%FS/℃
Iiparamitha zobushushu	Ubushushu bokusebenza: -20℃~+60℃, ubushushu bokugcina:-40 ℃~+80℃
Ubuntu bezizalwane	10% ~ 95% RH akukho condensation
Amandla e-Dielectric	Phakathi kwecala elikhuselekileyo langaphakathi kunye necala elingakhuselekanga (≥ 3000VAC / min); phakathi konikezelo lwamandla kunye netheminali engeyoyangaphakathi ekhuselekileyo (≥ 1500VAC/min)
Ukumelana ne-insulation	≥100MΩ (phakathi kwegalelo/imveliso/ubonelelo lwamandla)
Ukuhambelana kwe-electromagnetic	Ngokutsho kwe-IEC 61326-1(GB/T 18268), IEC 61326-3-1
MTBF	100000h
Iimfuno zocingo	Umphezulu wokusika othe tye ≥ 0.5mm2; Amandla e-Insulation ≥ 500V
Izixhobo zentsimi ezisebenzayo	Iingcingo ezimbini okanye ezintathu iithermistors zocingo G53, Cu50, Pt100, Pt1000, Ni1000
Indawo yofakelo	Ifakwe kwindawo ekhuselekileyo, inokuxhunywa kwizixhobo zokhuseleko lwangaphakathi kwiindawo ezinobungozi ukuya kwi-Zone 0, IIC, Zone 20, kunye ne-IIIC.
Izatifikethi ezikhuselekileyo ngokwangaphakathi
Isiqinisekiso sokhuseleko esisebenzayo	I-SIL3 ngokwemigangatho ye-IEC 61508
Uphawu lobungqina bokudubula	[Eks ia Ga]lIC [Ex ia Da]lllC
Umgangatho wobungqina bokudubula	GB/T3836.1-2021 GB/T3836.4-2021
Izikhululo ze-3-2, 4-2	Um:250V AC/DC Uo=8.4V DC lo=31mA Po=65.1mW Co=4.8µF Lo=20mH
Iqumrhu lezatifiketi	I-CQST(iZiko leSizwe lokuJonga uMgangatho kunye neZiko loVavanyo lokuPhuma kweeMveliso zoMbane eziKhuselweyo)

Umzobo weSchematic

Izabelo zetheminali kunye nemilinganiselo

Indawo yokukhwelela	Indawo yokukhwelela izabelo
9	Ubonelelo lwamandla +	20~35VDC
10	Ukunikezwa Amandla -
	2-ingcingo	3-ingcingo
2	kunye 4 imfutshane edibeneyo	Igalelo-
3	Igalelo+	Igalelo+
4	Igalelo-	Igalelo-
5	Imveliso+	4~20mA
6	Isiphumo-