Uhlolojikelele

Umgoqo wokuphepha wokuhlukanisa okokufaka we-RTD ungaguqula amasiginali wezintambo ezimbili noma ezintathu ze-thermistor (RTD) ezindaweni eziyingozi zibe amasignali amanje angu-4-20mA futhi uwakhiphele endaweni yokuphepha. Ingacushwa ngobuhlakani, futhi ububanzi bangempela bokumelana nokushisa bungasethwa ngesofthiwe yekhompyutha. Inemisebenzi ye-alamu yokuphuka kocingo kanye ne-alamu ephuma ebangeni.

I-"*" imele uhlobo lokufakwayo lwe-thermistor, futhi imodeli ethile imelwe ikhodi (bona "Uhlobo Lwesiginali Yokokufaka kanye Nethebula Lobubanzi" ukuze uthole imininingwane).

Izinhlobo zesignali yokokufaka nobubanzi bokulinganisa

Isibonelo: uma okokufaka kuwukokufaka okungu-2 nge-K-couple, izinga lokushisa lingu-0~1200℃, ukuphuma okungu-2 okungu-4~20mA, ukunikezwa kwamandla okungu-20~35VDC, imodeli kufanele ibe yi-PHD-22TT-1111 (0~1200℃).

Ibanga lokulinganisa lingasethwa kububanzi obushiwo 0~1200℃ ngekhompyutha.

* Ugesi wetheminali yebhasi, sicela ubheke isithasiselo ukuze uthole imininingwane.

Ukucaciswa

Okokufaka endaweni eyingozi
Isignali yokokufaka	Amasignali ethermistor enezintambo ezimbili noma ezintathu (bona "Uhlobo Lwesiginali Yokokufaka kanye Nethebula Lobubanzi" ukuze uthole imininingwane)
Ukunqamula okokufaka	Okuzenzakalelayo "i-alamu ephansi" ingashintshwa ibe "i-alamu ephezulu" ngesofthiwe yokumisa
Ububanzi besiginali	Ibanga lokulinganisa elihambisanayo lokumelana nokushisa
Ibanga lokulinganisa	Abasebenzisi bazenzela okwabo ukucupha lapho be-oda, futhi bakubonise ngenombolo yomsila noma ngenye indlela.
Okukhiphayo ohlangothini lokuphepha:
Isignali yokuphumayo	4 ~ 20mA
Umthamo wokulayisha wokukhiphayo	0~500Ω(kuyenzeka ngokwezifiso) Uhlobo lokukhipha amandla kagesi ozikhethela, ukumelana nomthwalo RL ≥ 330kΩ
Isikhombi se-LED	Okuluhlaza: Inkomba yamandla I-alamu yebanga eliphansi ikhanya ukukhanya okuphuzi, ukukhanya okubomvu kwebanga eliphezulu kuvuliwe
Ukunemba komphumela	Sicela ubheke "Uhlobo Lwesiginali Yokufaka kanye Nethebula Lebanga" ukuze uthole imininingwane
Isikhathi sokuphendula	Ifinyelela ku-90% yenani lokugcina phakathi kuka-300ms
Ukwehla kwezinga lokushisa	0.005%FS/℃
Izinga lokushisa	Izinga lokushisa lokusebenza: -20 ℃~+60 ℃, izinga lokushisa lokugcina: -40 ℃~+80 ℃
Umswakama ohlobene	10% ~ 95% RH akukho ukufingqa
Amandla e-Dielectric	Phakathi kohlangothi oluphephile lwangaphakathi kanye nohlangothi olungaphephile ngaphakathi (≥ 3000VAC/min); phakathi kokunikezwa kwamandla kanye netheminali engaphephile ngaphakathi (≥ 1500VAC/min)
Ukumelana ne-insulation	≥100MΩ (phakathi kokufaka/okuphumayo/ukunikezwa kwamandla)
Ukuhambisana kwe-electromagnetic	Ngokusho kwe-IEC 61326-1(GB/T 18268), IEC 61326-3-1
MTBF	100000h
Izidingo zocingo	Indawo yokusika evundlile ≥ 0.5mm2; Amandla okushisa ≥ 500V
Imishini yasensimini esebenzayo	Izintambo ezimbili noma ama-thermistors amathathu G53, Cu50, Pt100, Pt1000, Ni1000
Indawo yokufaka	Ifakwe endaweni ephephile, ingaxhunywa kumathuluzi okuphepha angaphakathi ezindaweni eziyingozi kuze kufike ku-Zone 0, IIC, Zone 20, kanye ne-IIIC
Isitifiketi esiphephile ngaphakathi
Isitifiketi sokuphepha esisebenzayo	I-SIL3 ngokwamazinga e-IEC 61508
Uphawu lobufakazi bokuqhuma	[Ex ia Ga]lIC [Ex ia Da]lllC
Izinga lokuvikela ukuqhuma	I-GB/T3836.1-2021 GB/T3836.4-2021
Amatheminali 3-2,4-2	Um:250V AC/DC Uo=8.4V DC lo=31mA Po=65.1mW Co=4.8µF Lo=20mH
Umzimba wesitifiketi	CQST(China National Quality Supervision and Test Center for Explosion Protected Electrical Products)

Umdwebo wohlelo

Izabelo zetheminali nobukhulu

Isikhumulo	Isikhumulo izabelo
9	Ukunikezwa kwamandla +	20~35VDC
10	Ukunikezwa kwamandla kagesi -
	2-intambo	3-intambo
2	nge 4 okufushane okuxhunyiwe	Okokufaka-
3	Okokufaka+	Okokufaka+
4	Okokufaka-	Okokufaka-
5	Okukhiphayo+	4~20mA
6	Okukhiphayo-