| 
																		
																			| 最大PID比率 | 50 
																			or 
																			60 
																			Hz, 
																			depending 
																			on 
																			AC 
																			line 
																			frequency |  
																			| 数据记录率 | 10 
																			samples/second/channel 
																			– 1 
																			sample/hour/channel 
																			(can 
																			be 
																			setindependently 
																			for 
																			each 
																			channel 
																			or 
																			globally 
																			for 
																			all 
																			channels) |  
																			| 显示分辨率 | 0.001 
																			°C, 
																			°F, 
																			K, 
																			V, 
																			A, 
																			W, 
																			etc. 
																			if 
																			–1000 
																			< 
																			displayed 
																			value 
																			< 
																			1000;6 
																			significant 
																			figures 
																			otherwise |  
																			| PID 
																			控制回路 | Single 
																			step 
																			response 
																			or 
																			relay 
																			tuning 
																			with 
																			conservative, 
																			moderate, 
																			andaggressive 
																			response 
																			targets |  
																			| 显示 | 320 
																			× 
																			240 
																			pixel 
																			touchscreen; 
																			numeric 
																			and 
																			graphical 
																			data 
																			displays. |  
																			| 报警 | Upper 
																			and 
																			lower 
																			temperaturelimits 
																			or 
																			rate-of-change 
																			limits 
																			can 
																			be 
																			set 
																			on 
																			each |  
																			|  | channel. 
																			If 
																			exceeded, 
																			an 
																			audio 
																			alarm 
																			and 
																			a 
																			relay 
																			closure 
																			occur. |  
																			| 接口 | USB, 
																			Ethernet, 
																			and 
																			RS-232; 
																			optional 
																			GPIB 
																			(IEEE488.2) |  | 
																
																	| 
 
																		
																		
																		PTC320 
																		thermistor, 
																		diode, 
																		and RTD 
																		reader  | 
																
																	| 
																		
																			| 输入 | One 
																			input 
																			for 
																			2-wire 
																			or 
																			4-wire 
																			thermistor, 
																			diode, 
																			or 
																			RTD |  
																			| 连接器 | 6-pin 
																			240° 
																			push-pull 
																			DIN 
																			socket |  
																			| 范围 | 30, 
																			100, 
																			300, 
																			1k, 
																			3k, 
																			10k, 
																			30k, 
																			100kΩ, 
																			±2.5V, 
																			or 
																			auto |  
																			| 激发源 
																			(RTDs) | 0, 
																			10, 
																			20, 
																			50, 
																			100, 
																			200, 
																			500 
																			nA; 
																			1, 
																			2, 
																			5, 
																			10, 
																			20, 
																			50, 
																			100, 
																			200, 
																			500 
																			μA; 
																			1, 
																			2,5 
																			mA; 
																			or 
																			auto |  
																			| 激发源 
																			(diodes) | 0 or 
																			10 
																			μA |  
																			| 准确度 | TBD |  
																			| 噪声 | TBD |  
																			| 温度系数 | TBD |  | 
																
																	| 
 
																		
																		
																		PTC321 
																		Pt RTD 
																		reader | 
																
																	| 
																		
																			| 输入 | Four 
																			100Ω 
																			Pt 
																			RTD 
																			4-wire 
																			inputs |  
																			| 连接头 | 5-pin, 
																			3.5mm 
																			header |  
																			| 范围 | 0 – 
																			400 
																			Ω |  
																			| ITS-90 
																			Pt100 
																			RTDs | –215 
																			°C 
																			to 
																			850 
																			°C |  
																			| 激发源 | 1 mA |  
																			| 初始精度 | ±30 
																			mK |  
																			| 温度漂移 | 1.4 
																			mK/°C |  
																			| 时间漂移 | ±15 
																			mK/year 
																			(at 
																			25°C 
																			ambient 
																			temperature) |  
																			| 噪声 | 2 
																			mKrms 
																			(at 
																			25°C 
																			sensor 
																			temperature 
																			and 
																			10 
																			samples/s) |  
																			| 信号检测 | Card 
																			detects 
																			open 
																			and 
																			short 
																			circuit 
																			conditions |  | 
																
																	| 
 
																		
																		
																		PTC330 
																		thermocouple 
																		reader  | 
																
																	| 
																		
																			| 输出 | Four 
																			optoisolated 
																			thermocouple 
																			inputs |  
																			| 连接口 | Mini 
																			thermocouple 
																			jacks |  
																			| 热电偶类型 | E, 
																			J, 
																			K, 
																			N, 
																			or T |  
 
																		
																			| 范围 | ±500 
																			mV |  
																			| Type 
																			E | –245 
																			°C 
																			to 
																			1025 
																			°C 
																			(cal 
																			table 
																			range 
																			with 
																			cold 
																			junction 
																			at 
																			25°C) |  
																			| Type 
																			J | –185 
																			°C 
																			to 
																			1225 
																			°C |  
																			| Type 
																			K | –245 
																			°C 
																			to 
																			1395 
																			°C |  
																			| Type 
																			N | –245 
																			°C 
																			to 
																			1325 
																			°C |  
																			| Type 
																			T | –245 
																			°C 
																			to 
																			425 
																			°C |  
																			| 输入电容 | <1 
																			pF |  
																			| 精度 | ±500 
																			mK 
																			(over 
																			12 
																			months) |  
																			| 噪声 | 20 
																			mKrms 
																			(at 
																			10 
																			samples/s) |  
																			| 温度漂移 | 20 
																			mK/°C 
																			(type 
																			K 
																			thermocouple 
																			at 
																			164.0 
																			K) |  
																			| 共模抑制比CMRR | 100 
																			dB |  | 
																
																	| 
 
																		
																		
																		PTC420 
																		AC 
																		output 
																		card  | 
																
																	| 
																		
																			| 输出 | One 
																			line 
																			voltage 
																			output 
																			switched 
																			by 
																			solid-state 
																			relay |  
																			| 连接口 | NEMA 
																			5-15 
																			(3-prong 
																			North 
																			American 
																			wall 
																			socket); 
																			a 
																			heater 
																			cable 
																			with 
																			a 
																			mating 
																			plug 
																			on 
																			one 
																			side 
																			and 
																			stripped 
																			ends 
																			on 
																			the 
																			other 
																			is 
																			included |  
																			| 输出电压 | 120/240 
																			VAC |  
																			| 最大输出电流 | 5 A |  
																			| On/off 
																			cycle 
																			time | Adjustable 
																			between 
																			1 
																			and 
																			240 
																			s |  
																			| 最大线性电压 | 250 
																			VAC |  
																			| 冲击电流 | 100 
																			A 
																			max. 
																			(non-repetitive) |  
																			| 输出分辨率 | 0.1% 
																			at 
																			10 s 
																			cycle 
																			time |  
																			| 最小加热器电阻 | 24 Ω 
																			(110 
																			VAC), 
																			46 Ω 
																			(230 
																			VAC) |  | 
																
																	| 
 
																		
																		
																		PTC430 
																		DC 
																		output 
																		card | 
																
																	| 
																		
																			| 输出 | One 
																			linear, 
																			unipolar 
																			DC 
																			current 
																			source |  
																			| 连接 | Two 
																			banana 
																			jacks, 
																			1 
																			inch 
																			center-to-center 
																			spacing |  
																			| 范围 | 50 V 
																			1A, 
																			20 V 
																			2 A, 
																			50 V 
																			0.5A, 
																			20 V 
																			0.5 
																			A,50 
																			V 
																			0.1A, 
																			or 
																			20 V 
																			0.1 
																			A |  
																			| 输出分辨率 | 16-bit 
																			(24-bit 
																			with 
																			dithering) |  
																			| 精度 | ±1 
																			mA 
																			(1 A 
																			range) 
																			±0.1 
																			mA 
																			(0.5 
																			A 
																			range) 
																			±0.01 
																			mA 
																			(0.1 
																			A 
																			range) |  
																			| 噪声 
																			25 
																			Ω负载 | 200 
																			μV 
																			(1 A 
																			range) 
																			15 
																			μV 
																			(0.5 
																			A 
																			range) 
																			5 μV 
																			(0.1 
																			A 
																			range) |  |