eLoad PLW 系列

传统的直流电子负载十分笨重，并且体积庞大。大多数仅提供标准的电压、电流与功率。在自动化测试设备（ATE）系统中，机架空间一般十分有限，而且随着技术日新月异，应用需求日益多样化。

AMREL 的 PLW 系列水冷型直流电子负载可按照客户的需要进行定制，以满足特定应用的要求。此外，PLW 系列还配备的冷凝防护，并且拥有较高的功率密度与额定电流，并且有多种高压型号供用户选择。

PLW 系列的特点和优势

免开盖自动校准
选用 PLW eLoad 系列负载的用户不必将设备返厂校准或为了调整电位计而拆卸多个螺钉。只要遵照前面板提示的 AMREL 校准程序进行操作，就可以很快地将设备恢复运行(需要某些电子测试设备)。这样就能几乎避免停产，又省去了每年的返厂校准运费。

FET 隔离保护
为确保 PLW 系列的可靠性，AMREL 的设计还增加了 FET 隔离保护功能。一台可编程电子负载可能包含许多并联的 FET。因此，其中一个 FET 短路就会造成级联失效。AMREL 的 eLoad 程控负载能隔离失效的部分，保护其余部件不受影响，从而提高系统对严重失效的保护水平。FET 隔离保护功能可以缩短平均恢复时间 (MTTR)，使电子负载迅速恢复全面运行。

超低电压操作
PLW 的设计让其能在接近 0.1 V 的电压水平下运行。它可以在不足额定电压1%的电压下消耗满额电流。例如 60V，1500A 型号可以在 0.6 V 电压条件下工作，但仍消耗满额电流。

• AMREL eLoad PLW 系列规格

  General
  Models	Power Input (MAX)	Voltage (V) (MAX)	Current (A) (MAX)
  PLW6K-60-1000	6000	60	1000
  PLW6K-120-600	6000	120	600
  PLW6K-400-300	6000	400	300
  PLW6K-600-200	6000	600	200
  PLW6K-800-25	6000	800	25
  PLW6K-1000-25	6000	1000	25
  PLW9K-60-1500	9000	60	1500
  PLW9K-120-1000	9000	120	1000
  PLW9K-400-400	9000	400	400
  PLW9K-600-300	9000	600	300
  PLW9K-800-40	9000	800	40
  PLW9K-1000-40	9000	1000	40
  PLW12K-60-1500	12000	60	1500
  PLW12K-120-1200	12000	120	1200
  PLW12K-400-600	12000	400	600
  PLW12K-600-400	12000	600	400
  PLW12K-800-50	12000	800	50
  PLW12K-1000-50	12000	1000	50
  PLW18K-60-1500	18000	60	1500
  PLW18K-120-1500	18000	120	1500
  PLW18K-400-800	18000	400	800
  PLW18K-600-600	18000	600	600
  PLW18K-800-75	18000	800	75
  PLW18K-1000-75	18000	1000	75
  PLW24K-60-1500	24000	60	1500
  PLW24K-120-1500	24000	120	1500
  PLW24K-400-1200	24000	400	1200
  PLW24K-600-800	24000	600	800
  PLW24K-800-100	24000	800	100
  PLW24K-1000-100	24000	1000	100
  PLW36K-60-1500	36000	60	1500
  PLW36K-120-1500	36000	120	1500
  PLW36K-400-1500	36000	400	1500
  PLW36K-600-1000	36000	600	1000
  PLW36K-800-150	36000	800	150
  PLW36K-1000-150	36000	1000	150
  Note: Higher power available. Please contact the factory.

  General
  Models	CR Low (min) Ω	CR High (max) Ω	Vmin at Imax	LxWxH & Weight
  PLW6K-60-1000	0.0150	60	0.9	2U, 27.5"D
  PLW6K-120-600	0.0125	200	1.5	2U, 27.5"D
  PLW6K-400-300	0.0090	1333.3	3.6	2U, 27.5"D
  PLW6K-600-200	0.0200	3000	12	2U, 27.5"D
  PLW6K-800-25	0.0075	32000	6	2U, 27.5"D
  PLW6K-1000-25	0.0060	40000	6	2U, 27.5"D
  PLW9K-60-1500	0.0150	40	0.9	2U, 27.5"D
  PLW9K-120-1000	0.0125	120	1.5	2U, 27.5"D
  PLW9K-400-400	0.0090	1000	3.6	2U, 27.5"D
  PLW9K-600-300	0.0200	2000	12	2U, 27.5"D
  PLW9K-800-40	0.0075	20000	6	2U, 27.5"D
  PLW9K-1000-40	0.0060	25000	6	2U, 27.5"D
  PLW12K-60-1500	0.0125	40	0.75	2U, 27.5"D
  PLW12K-120-1200	0.0130	100	1.56	2U, 27.5"D
  PLW12K-400-600	0.0090	666.6	3.6	2U, 27.5"D
  PLW12K-600-400	0.0200	1500	12	2U, 27.5"D
  PLW12K-800-50	0.0075	16000	6	2U, 27.5"D
  PLW12K-1000-50	0.0060	20000	6	2U, 27.5"D
  PLW18K-60-1500	0.0100	40	0.6	2U, 27.5"D
  PLW18K-120-1500	0.0125	80	1.5	2U, 27.5"D
  PLW18K-400-800	0.0090	500	3.6	2U, 27.5"D
  PLW18K-600-600	0.0200	1000	12	2U, 27.5"D
  PLW18K-800-75	0.0075	10666.6	6	2U, 27.5"D
  PLW18K-1000-75	0.0060	13333.3	6	2U, 27.5"D
  PLW24K-60-1500	0.0075	40	0.45	4U, 27.5"D
  PLW24K-120-1500	0.0100	80	1.2	4U, 27.5"D
  PLW24K-400-1200	0.0090	333.3	3.6	4U, 27.5"D
  PLW24K-600-800	0.0200	750	12	4U, 27.5"D
  PLW24K-800-100	0.0075	8000	6	4U, 27.5"D
  PLW24K-1000-100	0.0060	10000	6	4U, 27.5"D
  PLW36K-60-1500	0.0075	40	0.45	4U, 27.5"D
  PLW36K-120-1500	0.0075	80	0.9	4U, 27.5"D
  PLW36K-400-1500	0.0083	266.6	3.3	4U, 27.5"D
  PLW36K-600-1000	0.0167	600	10	4U, 27.5"D
  PLW36K-800-150	0.0075	5333.3	6	4U, 27.5"D
  PLW36K-1000-150	0.0060	6666.6	6	4U, 27.5"D
  Note: Higher powers available.  Option I = Isolated Analog Programming E = Ethernet (10/100 Lan) & USB 2.0 Interface -XX = Ultra Low Range (xx = UL current rating)

  General
  Models	CRH Range Ω		CRM Range Ω		CRL Range Ω
  	Rmin	Rmax	Rmin	Rmax	Rmin	Rmax
  PLW6K-60-1000	0.6	60	0.06	15	0.0009	0.06
  PLW6K-120-600	2.0	200	0.20	50	0.0025	0.20
  PLW6K-400-300	13.3	1333.3	1.33	333.3	0.0120	1.33
  PLW6K-600-200	30.0	3000	3.00	750	0.0600	3.00
  PLW6K-800-25	320.0	32000	32.00	8000	0.2400	32.00
  PLW6K-1000-25	400.0	40000	40.00	10000	0.2400	40.00
  PLW9K-60-1500	0.4	40	0.04	10	0.0006	0.04
  PLW9K-120-1000	1.2	120	0.12	30	0.0015	0.12
  PLW9K-400-400	10.0	1000	1.00	250	0.0090	1.00
  PLW9K-600-300	20.0	2000	2.00	500	0.0400	2.00
  PLW9K-800-40	200.0	20000	20.00	5000	0.1500	20.00
  PLW9K-1000-40	250.0	25000	25.00	6250	0.1500	25.00
  PLW12K-60-1500	0.4	40	0.04	10	0.0005	0.04
  PLW12K-120-1200	1.0	100	0.10	25	0.0013	0.10
  PLW12K-400-600	6.7	666.6	0.67	166.6	0.0060	0.67
  PLW12K-600-400	15.0	1500	1.50	375	0.0300	1.50
  PLW12K-800-50	160.0	16000	16.00	4000	0.1200	16.00
  PLW12K-1000-50	200.0	20000	20.00	5000	0.1200	20.00
  PLW18K-60-1500	0.4	40	0.04	10	0.0004	0.04
  PLW18K-120-1500	0.8	80	0.08	20	0.0010	0.08
  PLW18K-400-800	5.0	500	0.50	125	0.0045	0.50
  PLW18K-600-600	10.0	1000	1.00	250	0.0200	1.00
  PLW18K-800-75	106.7	10666.6	10.67	2666.6	0.0800	10.67
  PLW18K-1000-75	133.3	13333.3	13.33	3333.3	0.0800	13.33
  PLW24K-60-1500	0.4	40	0.04	10	0.0003	0.04
  PLW24K-120-1500	0.8	80	0.08	20	0.0008	0.08
  PLW24K-400-1200	3.3	333.3	0.33	83.3	0.0030	0.33
  PLW24K-600-800	7.5	750	0.75	187.5	0.0150	0.75
  PLW24K-800-100	80.0	8000	8.00	2000	0.0600	8.00
  PLW24K-1000-100	100.0	10000	10.00	2500	0.0600	10.00
  PLW36K-60-1500	0.4	40	0.04	10	0.0003	0.04
  PLW36K-120-1500	0.8	80	0.08	20	0.0006	0.08
  PLW36K-400-1500	2.7	266.6	0.27	66.6	0.0022	0.27
  PLW36K-600-1000	6.0	600	0.60	150	0.0100	0.60
  PLW36K-800-150	53.3	5333.3	5.33	1333.3	0.0400	5.33
  PLW36K-1000-150	66.7	6666.6	6.67	1666.6	0.0400	6.67

  Constant Resistance Mode
  Transient Time Range : CRM / CRH	Same As CC Mode
  Transient Time Range : CRL	Same As CV Mode
  Temperature Coefficient :  CRM / H	300 ppm / °C of Minimum Resistance
  Temperature Coefficient : CRL	300 ppm / °C of Maximum Resistance

  Constant Resistance Mode - Program : CR Resolution*2 - 1/16000 Of Rated Value

  *1 All Mode Specification measure by 25˚C room temperature unless otherwise specified *2 Transient Mode Specification must be x2

  Common
  Constant Voltage Mode	(0-V) V
  CVMedium Range	0 - ( V / 2) V
  CVLow Range	0 - ( / 10) V
  Temp Coefficient	100 ppm / °C of Rated Voltage
  Transient Time Range
  Fast Band(default, Osc1)	0.500 ~ 51.19 ms
  Slow Band(Osc2, Osc3)	0.500 ~ 511.9 ms
  CV Resolutions*2	1/16000 of rated voltage
  CV Accuracy*2 (CVH, CVM, CVL)	0.05% +/- (0.1% x Vmax) V
  Display Specifications
  CV Resolution	1/16000 of Rated Voltage
  CV Accuracy (CVH, CVM, CCL)	0.05% +/- (0.1% x V) V

  Constant Power Mode
  CPHigh Range	(0-P) W
  CPMedium Range	0 - (P/2) W @ DC input current ≤ (I/2) A
  CPLow Range	0 - (P/10) W @ DC input current ≤ (I/10) A
  Transient Time Range	Same as CC Mode
  Temperature Coefficient	300 ppm / °C of Rated Power

  Constant Power Mode : Program
  CPHigh Accuracy*2	1.00% +/- (Px0.5%) W @ input current > (I/20) A, input voltage > (V/10) V
  CPMedium Range	1.00% +/- (Px0.5%) W @ input current > (I/100) A, input voltage > (V/10) V
  CPLow Range	1.00% +/- (Px0.5%) W @ input current > (I/1000) A, input voltage > (V/5) V
  Program	CP Resolution*2 1/16000 of Rated Power

  Constant Current Mode
  CCHigh Range	0 - I A
  CCMedium Range	0 - (I/2) A
  CCLow Range	0 - (I/10) A
  Transient Time Range
  Fast Bａnd (default, Osc1)	0.050 ~ 51.19 ms
  Slow Bａnd (Osc2, Osc3)	0.500 ~ 511.9 ms
  Temperature Coefficient	100 ppm / °C of Rated Current

  Constant Current Mode : Program
  CC Resolution*2	1/16000 of rated current
  CCHigh Accuracy*2 LHM	0.05% +/- (Ix0.1%) A

  Constant Resistance Mode
  Transient Time Range : CRM / CRH	Same As CC Mode
  Transient Time Range : CRL	Same As CV Mode
  Temperature Coefficient : CRM / H	300 ppm / °C of Minimum Resistance
  Temperature Coefficient : CRL	300 ppm / °C of Maximum Resistance

  Constant Resistance Mode - Program
  CR Resolution*2	1/16000 of rated value

  External Programming Mode
  Monitor Output Signal	0-10 Volts output for 0 to full scale value
  VMON Accuracy	0.10% +/- (Vx0.1%) V
  IMON Accuracy	0.10% +/- (Ix0.1%) A
  Analog Program	0~10 Volts Input yields 0 -- selected full scale loading in all modes
  Accuracy	Same As Internal ± 0.1% Rating
  Input Impedance	200 k Ω ± 1 %
  BandWidth(-3dB)	Limited By Internal Transient Time
  Remote Interface	GPIB / RS-232 / ETHERNET / USB

  Programmable Protection
  Power (OPP)
  Range	(Px1.05/800) ~ (Px1.05) W
  Resolution	(Px1.05/8000) W
  Accuracy	0.50% +/- (P x 21 / 8000) W
  Voltage (OVP)
  Range	(Vx1.05/1600) ~ (Vx1.05) V
  Resolution	(Vx1.05/16000) V
  Accuracy	0.20% +/- (Vx1.05/800) V
  Current (OCP)
  Range	Ix1.05/1600) ~ (Ix1.05) A
  Resolution	(Ix1.05/16000) A
  Accuracy	0.20% +/- (Ix1.05/800) A
  Under Voltage Lockout (UVL)
  Mode	Input On / Continuous
  Range	((V/4000*3) ~ Vmax) V
  Resolution	(V/4000) V
  Accuracy	2.50% +/- (V/800) V
  Anti-Oscillation	Default/ Osc1/ Osc2/ Osc3/ Disable

  Protection
  Over Power (OP)	(Px1.05) +/- (Px0.02) W
  Over Voltage (OV)	(Vx1.05) +/- (Vx0.02) V
  Over Current (OC)	(Ix1.1) +/- (Ix1.1x0.01/1.05) A
  Over Temp (OTP)	50.00 +/- 5.000 °C
  Reverse Max Current (RCP)	(Ix1.1) A
  Short Max Current	(Ix1.02) A
  Remote Inhibit (RI)	Short
  Fault Indicator	SPDT Relay (30Vdc/0.5A or 125Vac/0.25A

  General
  AC Input	95~240 Vac 48~62 Hz
  Derating for higher temperatures	(-)1.67% Rated Power / °C
  Operating Temperature	5 °C ~ 40 °C
  Fluid
  Valve	Normal closed
  Flow Rate (Pmax)	>= 1.5~9.0 GPM @ 15 °C Fluid In
  Derating for higher temperatures	-3% Rated Power / °C
  Pressure	< 80 PSI
  Pipe Size	1/2&rdquo; NPT Female (<=24kW models, 3/4&rdquo; for higher power)
  Decondensation	Valve thermal control
  Transient Mode
  Frequency Range	0.100 - 10,000 Hz
  Duty Range	1.000 - 100.0%
  Transient Time Accuracy	10.0% +/- 50% of Min Time

  Dielectric Strength
  Primary Circuit To Chassis	1500 Vac for 1 min
  Primary Circuit To Load Terminal	1500 Vac for 1 min
  Load Terminal To Chassis	1500 Vdc for 1 min

• DCS：型号描述