Manual
NH Re search, Incorporated
16601 Hale Avenue, Irvine, California 92606
Tel: 949-474-3900
Fax: 949-474-7062
www.nhresearch.com
www.electronicloads.com
©Copyright 2009, NH Research Incorporated.
All rights reserved.
Specifications subject to change without notice.
SPECIFICATIONS
1
4600
Ratings
4600-3 4600-6 4600-12 4600-18 4600-24 4600-36²
Power 3 kW 6 kW 12 kW 18 kW 24 kW 36 kW
Maximum Current³ 30 A 60 A 120 A 180 A 240 A 360 A
Voltage Range³ 50 - 350 V 50 - 350 V 50 - 350 V 50 - 350 V 50 - 350 V 50 - 350 V
Programmable
Modes
Constant Current
Range (RMS) 0 - 30 A 0 - 60 A 0 - 120 A 0 - 180 A 0 - 240 A 0 - 360 A
Accuracy 0.2% 0.2% 0.2% 0.2% 0.2% 0.2%
Resolution 0.05% 0.05% 0.05% 0.05% 0.05% 0.05%
Constant Voltage
Range 50 - 350 V 50 - 350 V 50 - 350 V 50 - 350 V 50 - 350 V 50 - 350 V
Accuracy 0.2% 0.2% 0.2% 0.2% 0.2% 0.2%
Resolution 0.05% 0.05% 0.05% 0.05% 0.05% 0.05%
Constant Power
Range 300 W - 3 kW 600 W - 6 kW 1.2 - 12 kW 1.8 - 18 kW 2.4 - 24 kW 3.6 - 36 kW
Accuracy 0.5% 0.5% 0.5% 0.5% 0.5% 0.5%
Resolution 0.05% 0.05% 0.05% 0.05% 0.05% 0.05%
Constant Resistance
R
anges 2.5-100, 100-1000Ω 1.25-50, 50-500Ω 0.63-25, 25-250Ω 0.42 -17, 17-167Ω 0.31-12.5, 12.5-125Ω 0.2-8.3, 8.3-83Ω
Accuracy 1, 5% 1, 5% 1, 5% 1, 5% 1, 5% 1, 5%
Resolution 0.05% 0.05% 0.05% 0.05% 0.05% 0.05%
Short Circuit
Max Surge Current 300 A 600 A 1200 A 1800 A 2400 A 3600 A
Power Factor
Range 0 -1, lead/lag 0 -1, lead/lag 0 -1, lead/lag 0 -1, lead/lag 0 -1, lead/lag 0 -1, lead/lag
Accuracy 1% 1% 1% 1% 1% 1%
Resolution 0.05% 0.05% 0.05% 0.05% 0.05% 0.05%
Crest Factor
Range 1.414 - 4 1.414 - 4 1.414 - 4 1.414 - 4 1.414 - 4 1.414 - 4
90 A limit 180 A limit 360 A limit 540 A limit 720 A limit 1080 A limit
Accuracy 1% 1% 1% 1% 1% 1%
Resolution 0.05% 0.05% 0.05% 0.05% 0.05% 0.05%
Macros Queues of up to 100 commands can be run manually or from a triggered event
such as phase angle, input voltage level, or system trigger
Custom Waveforms User-defined waveforms can be created through a full-screen graphical editor that provides control
of current, voltage, resistance, power, crest factor and power factor
Measurements
Current
Ranges (RMS) 0 - 30 A 0 - 60 A 0 - 120 A 0 - 180 A 0 - 240 A 0 -360 A
Accuracy 0.2% 0.2% 0.2% 0.2% 0.2% 0.2%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Peak Current
Ranges 0 - 90 A 0 - 180 A 0 - 360 A 0 - 540 A 0 - 720 A 0 - 1080 A
Accuracy 0.5% 0.5% 0.5% 0.5% 0.5% 0.5%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Voltage
Ranges 50 - 350 V 50 - 350 V 50 - 350 V 50 - 350 V 50 - 350 V 50 - 350 V
Accuracy 0.1% 0.1% 0.1% 0.1% 0.1% 0.1%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Peak Voltage
Ranges 50 - 500 V 50 - 500 V 50 - 500 V 50 - 500 V 50 - 500 V 50 - 500 V
Accuracy 0.5% 0.5% 0.5% 0.5% 0.5% 0.5%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Frequency
Range 45 - 440 Hz 45 - 440 Hz 45 - 440 Hz 45 - 440 Hz 45 - 440 Hz 45 - 440 Hz
Accuracy 0.1% 0.1% 0.1% 0.1% 0.1% 0.1%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
True Power
Ranges 0 - 10.5 kVA 0 - 21 kVA 0 - 42 kVA 0 - 63 kVA 0 - 84 kVA 0 - 126 kVA
Accuracy 0.2% 0.5% 0.5% 0.5% 0.5% 0.5%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Apparent Power
Range 0 - 10.5 kVA 0 - 21 kVA 0 - 42 kVA 0 - 63 kVA 0 - 84 kVA 0 - 126 kVA
Accuracy 0.3% 0.3% 0.3% 0.3% 0.3% 0.3%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Reactive Power
Range 0 - 10.5 kVA 0 - 21 kVA 0 - 42 kVA 0 - 63 kVA 0 - 84 kVA 0 - 126 kVA
Accuracy 0.3% 0.3% 0.3% 0.3% 0.3% 0.3%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Peak Power
Range 0 - 45 kW 0- 90 kW 0 - 180 kW 0 - 270 kW 0 - 360 kW 0 - 540 kW
Accuracy 1.0% 1.0% 1.0% 1.0% 1.0% 1.0%
Resolution 0.1% 0.1% 0.1% 0.1% 0.1% 0.1%
Resistance
Range 2.5-100, 100-1000Ω 1.25-50, 50-500Ω 0.63-25, 25-250Ω 0.42-17, 17-167Ω 0.31-12.5, 12.5-125Ω 0.2-8.3, 8.3-83Ω
Accuracy 1%, 5% 1%, 5% 1%, 5% 1%, 5% 1%, 5% 1%, 5%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Crest Factor
Range 1.414 - 4 1.414 - 4 1.414 - 4 1.414 - 4 1.414 - 4 1.414 - 4
Accuracy 0.5% 0.5% 0.5% 0.5% 0.5% 0.5%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Power Factor
Range 0 -1, lead/lag 0 -1, lead/lag 0 -1, lead/lag 0 -1, lead/lag 0 -1, lead/lag 0 -1, lead/lag
Accuracy 0.5% 0.5% 0.5% 0.5% 0.5% 0.5%
Resolution 0.01% 0.01% 0.01% 0.01% 0.01% 0.01%
Waveform Display Continuously updated, graphical display of a full cycle of current, voltage and/or power waveforms
Physical
Enclosure Chassis Chassis (2) Cabinet Cabinet Cabinet, 2-Bay Cabinet, 2-Bay
Dimensions (HxWxD) 8¾ x 19 x 23 in 17½ x 19 x 25 in 57 x 23 x 30 in 72 x 23 x 30 in 57 x 46 x 30 in 72 x 46 x 30 in
23 x 49 x 59 cm 45 x 49 x 64 cm 145 x 59 x 77 cm 183 x 59 x 77 cm 117 x 59 x 77 cm 183 x 117 x 77 cm
Weight 77 lbs / 35 kg 154 lbs/70 kg 440 lbs/200 kg 650 lbs/295 kg 860 lbs/391 kg 1250 lbs/568 kg
Control
User Interface PC soft panel
PC 3 GHz µP with 512 MB
RAM, SVGA display, 80 GB HD
OS Window XP
Test Executive Optional emPower™ LE
Communications RS-232, USB option
Drivers NI LabVIEW, IVI, Active X
Additional
Features
3-Phase Provides for control of 3
Operation individual units (for example,
3kVA units for a total of 9kVA,
6kVA units for a total of
18 kVA) to simulate a 3-phase
load
Remote Voltage 1 MegaOhm impedance, 2 VDC
Sense max drop between sense and
load input
Self Test Power-up self test of all major
functions including status of
input, output, control and
protection circuits
Performance Continuous checking of
Monitoring performance parameters and
appropriate error messages
and/or LED fault indicators
Calibration Closed cover, all adjustments
made in software and stored in
FLASH
Protection OP, OC, OV, OT, and
Undervoltage
Lockout
Trigger Output To initiate an external
measurement device and
synchronized to programmed
load current step
Fan Noise Automatic fan speed control
Reduction
Load Connectors ITT Cannon DCM-
21WA4P/DM 53745-1 plug
& socket
Operating 0 - 50° C, maximum continuous
Temperatue and peak power derated 20%
above 38° C
Input Power 115/230 ± 10% VAC, 47 - 63 Hz
¹Specifications apply at 23* +/- 5* C after a 10 minute
warm up and are subject to change without notice.
All Accuries and Resolutions are % of full scale
²Higher power and custom configurations available
³Accuracies apply when Settings and/or Measurements
>10% of Range
1_NHR 4600 D.S.:NHR 4600 D.S. 8/20/09 11:02 AM Page 4