Summary of dc1000
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98-100 issue 8 2 www.Voltech.Com dc1000 precision dc bias current source user manual voltech instruments, inc. Voltech instruments, ltd. 12851 banyan creek drive 66 innovation drive, milton park fort myers, fl 33908-3083 didcot, ox14 4rq u.S.A. U.K. Tel: +1 (239) 437-0494 tel: +44 (0) 1235 861173 fa...
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98-100 issue 8 3 c ontents warranty........................................................................................................................................5 health & safety ..................................................................................................................
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98-100 issue 8 4 c onnecting the e quipment ..................................................................................................................36 u sing the s oftware .........................................................................................................................
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98-100 issue 8 5 w arranty this product is warranted against defect in materials and workmanship for a period of one year from the date of shipment. During the warranty period, voltech will, at its option, either repair or replace products that prove to be defective. For repair services under warran...
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98-100 issue 8 6 h ealth & s afety electrical devices can constitute a safety hazard. It is the responsibility of the user to ensure the compliance of the installation with any local acts or bylaws in force. Only qualified personnel should install this equipment, after reading and understanding this...
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98-100 issue 8 7 check your line input voltage setting before connecting to supply! Fig.1 use a flat-headed screwdriver to pull the fuse drawer out. Rotate the gray voltage selector to select the correct voltage for your location..
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98-100 issue 8 8 s afety p recautions there are no user serviceable parts inside the dc1000. Please return the unit to a voltech approved service center for any repairs that may be required. use fuses only of the type and rating – 4.00a 5x20 t-lag hi-break (vpn 66-052) the dc1000 has been c...
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98-100 issue 8 9 w hat is the dc1000? The dc1000 is a dc bias current source that can generate between 0 and 25a. Up to ten dc1000’s can simply be joined together in parallel to produce up to 250a. The dc1000 can be used with almost any lcr meter – making it unique amongst all dc bias current source...
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98-100 issue 8 10 p acking l ist when you receive your dc1000, the following accessories will also be in the packing box with your new instrument. Also given are the voltech part numbers (vpn), in case you’d like to order spares. 1 x dc1000 cd – which contains the demo dc1000 pc software and an e...
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98-100 issue 8 11 g etting s tarted the dc1000 is designed with ease of use and speed of testing in mind. Following is a description of the functions on both the front and rear panels of the dc1000, to help you familiarize yourself with the basic operation of the instrument. F ront p anel d escripti...
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98-100 issue 8 12 r ear p anel d escription fig.3 1) rs232 in – connects either to a pc or to the rs232 out port of the dc1000 closest to the controlling dc1000 or a voltech at instrument. 2) rs232 out – connects to the rs232 in port of another dc1000, in order to control its functionality, or conne...
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98-100 issue 8 13 s afety i nterlock for the dc1000 to produce any current, a safety system is required. The dc1000 can be used with and produces high currents; therefore, voltech recommends that your always use a safety system when using your dc1000. Consult with your company’s safety officer prior...
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98-100 issue 8 14 u sing the dc1000 and a v oltech at3600/at5600 with a safety system when using your dc1000(s) with a voltech at a bespoke “y” lead should be used for the interlock system fig. 25 shows this connection. Fig. 25 interlock a) use the safety device “y” lead (250-031). The end labeled “...
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98-100 issue 8 15 for optimum safety, ease of use and test speed, voltech recommends the use of a safety light curtain. This provides a ‘light curtain’ of infrared beams positioned in front of the test environment. Once the operator has removed his hand, the light curtain can signal that the situati...
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98-100 issue 8 16 u sing the dc1000 with an lcr meter the powerful design of the dc1000 allows it to be used with almost any manufacturer’s lcr meter. Using the test leads that were supplied with your dc1000 and with your lcr meter, it is fast and easy to setup your environment for testing an induct...
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98-100 issue 8 17 u sing m ultiple dc1000 s in p arallel you can generate up to 250a as a maximum by connecting up to ten dc1000s together in parallel. Either the first dc1000, or a pc or a voltech at3600 or ati can be used to control all the other dc1000s in the chain – automatically adjusting thei...
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98-100 issue 8 18 u sing a pc to c ontrol your dc1000 ( s ) to use a pc to just control your dc1000s, but not controlling an lcr meter at the same time, follow the setup in fig.6. Fig. 6 connect your computer’s rs232 port to the rs232 in port of the first dc1000 in your chain (‘dc1000 # 1’), using a...
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98-100 issue 8 19 u sing a pc to c ontrol your dc1000( s ) with an rs232 lcr m eter (n ot a v oltech at s eries p roduct ) to use your pc to control your dc1000s, and an lcr meter with rs232 communications capability, follow the setup in fig.7. Fig.7 connect your computer’s rs232 port to the rs232 i...
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98-100 issue 8 20 u sing a pc to c ontrol your dc1000( s ) with an ieee-488 lcr m eter (n ot a v oltech at s eries p roduct ) to use your pc to control your dc1000s, and an lcr meter with ieee-488 communications capability, follow the setup in fig.8. Fig.8 connect your computer’s rs232 port to the r...
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98-100 issue 8 21 u sing the dc1000 with a v oltech at3600 or at i ( and o ptional pc) fig. 9 connect the auxiliary port on your voltech ati or at3600 to the rs232 in port on your dc1000 using the 9-way male to 9-way female straight-through rs232 cable that was provided with your dc1000. Note: see t...
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98-100 issue 8 22 when using the dc1000 pc software, which was provided with your dc1000, the hi side of the dc1000 output, and of the inductor under test, should be connected to node 15 of the at fixture being used, and the lo side should be connected to node 13. There are standard fixtures availab...
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98-100 issue 8 23 u sing ir, ilk, hpdc, hpac t ests - (h igh v oltage t ests ) voltech at3600 or ati programs that include any of these tests should be connected such that the lo winding is the one that is connected to the dc1000 output. Fig.10 below illustrates this setup. Incorrect connections to ...
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98-100 issue 8 24 on selecting ‘lsbx inductance with external bias (series circuit)’ or ‘lpbx inductance with external bias (parallel circuit) from the ‘available tests’ window, a dialogue box will be displayed. Fig.11 to program the test: 1. Enter the signal, frequency and bias current required for...
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98-100 issue 8 25 ‘medium’ is the default setting. ‘long’ will give you more stable readings (for tighter limits) at the expense of test time, and ‘short’ will test at the maximum speed, but may give slightly noisier readings. 3. Enter the terminal names between which the inductance will be measured...
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98-100 issue 8 26 fig.12 to program the test: 6. Enter the signal, frequency and bias current required for the test. Note that the signal is normally entered as a voltage by selecting the ‘mv’ or ‘v’ button; but you may optionally enter it as a current by selecting the ‘ma’ button. (if in doubt refe...
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98-100 issue 8 27 8. Enter the terminal names between which the inductance will be measured. By pulling down the menu along side the fill-in box, you may select the high and low terminals for each test. 9. Select (mouse click the button) the type of limits you require, and enter the values. % enter ...
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98-100 issue 8 28 fig. 13 to program the test: 1. Enter the value of a voltage (or current) for the signal and the required frequency of the test. Also enter the bias current you would like to apply. Please note that the measure button may be used here. For information, refer to the ‘test program ed...
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98-100 issue 8 29 > enter minimum and maximum values. > enter just a minimum value. Enter just a maximum value. 5. Select ok. The test specification will then be displayed in the program window..
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98-100 issue 8 30 rs232 communication rs 232 connection many pcs today do not come with an rs232 as standard. To add an rs232 port to your pc, voltech recommend the use of one of the following usb to rs232 converters: 1. Usb gear (www.Usbgrear.Com) part number usbg-rs232-f12. 2. Cables to go (www.Ca...
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98-100 issue 8 31 rs232 in (female) rs232 out (male) commands for your convenience, listed below are the rs232 commands you can use to control the dc1000 remotely. The baud rate that you should use to communicate with the dc1000 is 9600, with 8 data bits, parity is none, 1 stop bit, and there is har...
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98-100 issue 8 32 “d_count,xx ” where xx is the number of units in the chain. Within 2 seconds, the unit will respond with: “d_stat,0,result ”” where result is a single integer indicating the status of the unit and any other unit attached. If everything is ok, 0 or 1 will be returned. If not, then a...
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98-100 issue 8 33 messages returned the following messages will be returned: the unit will respond with: “d_stat,0,status ” where status is a single integer indicating the status of the unit and any other unit attached. If everything is ok, 0 or 1 will be returned. If not, then a status number will ...
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98-100 issue 8 34 s tatus n umbers the dc1000 will return status numbers, either on the front panel display if there is an error, or via rs232 if it is requested. If the status is an error that is indicated in fig. 14 as needing to turn off the output, then in order to clear the error, and try again...
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98-100 issue 8 35 c alibration voltech recommends that the dc1000 should be calibrated and verified once per year. You may return the instrument to any voltech authorized service center for fast and accurate calibration. Contact your nearest sales office for information on returning a product for se...
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98-100 issue 8 36 pc s oftware to support the measurement of inductors under different dc load currents, voltech has developed a simple pc software application that will enable you to use your dc1000 and an lcr meter to make inductance measurements with different dc bias current levels. The results ...
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98-100 issue 8 37 using the software to run the software, click start -> all programs -> dc1000 and then select dc1000. Step 1: select the lcr meter figure 15 under test set-up, you can select an lcr meter that will be used to make the inductance measurement. Select the lcr meter than you want to us...
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98-100 issue 8 38 identifier string will be displayed. If comms are not working, then an error message will be displayed with information on what may be wrong. Figure 17 clicking on the saturation curve tab while in comms set-up with the “test comms” button pressed, will return you straight back to ...
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98-100 issue 8 39 figure 18 for example, if figure 18, the step size would be 0.1a. Step 4: set up the inductance measurement next, set up the inductance test voltage and frequency. Also, if the lcr meter is an at3600 or an ati, you will need to specify the high and low node of the top matrix betwee...
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98-100 issue 8 40 if you click the “begin” button with no or inappropriate communications set up, you will receive an error message and the application will stop. The application can be re- started by clicking on the right-facing run arrow at the top left. Step 6: view the results as the test runs, ...
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98-100 issue 8 41 figure 21 the appearance and the position of the cursor can be controlled by using the buttons to the right of the inductance value. To enable or disable cursor movement, press . To change the appearance of the cursor, press . The cursor can be either allowed to move freely, or loc...
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98-100 issue 8 42 dc1000 software can be saved to an html file by selecting the name and destination of the file and clicking on “save html”..
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98-100 issue 8 43 s pecifications output capability: 0 to 25a; in 10ma steps. Accuracy on supplied current: ±0.5% of reading ±25ma. Compliance voltage: 5v pk. Affect of the dc1000 on inductance readings the affect the dc1000 has on an inductance reading is dependant on the test voltage and frequency...
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98-100 issue 8 44 supply voltage input voltage: 100-125v / 200-250v ac 48-65hz input power: 400va max. Fuse: 4at environment temperature: +5 ° to 40°c operating humidity: 10% to 80% rh non-condensing. Dimensions height: 88mm width: 475mm length: 255mm weight: 10kg interfaces rs232 connection to at i...
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98-100 issue 8 45 emc c ompliance the dc1000 complies with the limits of bs en 55022 class a. Voltech instruments, inc. Has an intensive program of design and development that may alter product specification. Voltech instruments, inc. Reserves the right to change the product specification at any tim...