® ® ct u d o Pr e for sale t e l o ObsNot available INNOVATION and EXCELLENCE PANEL METER RANGE CHANGE KIT Range Change Kit For DM-3000 and DM-4000 Series Panel Meters Part No. RN-3100/4100 PURPOSE This kit contains all the components necessary to modify DATEL panel meters such that they accept signal inputs other than the standard ±2.0V range. This kit will modify the following panel meter models: DM-3100N-1 DM-3100Ul-1 DM-3100U2-1 DM-3100U3-1 DM-31003-1 DM-3101-1 DM-3100B-1 DM-3100L-1 DM-3100X -1 DM-3104 -1 DM-4100D-1 DM-4101D-1 DM-4101N-1 DM-4105-1 DM-4200-1 DM-410lL-1 Using the components in this kit, these panel meter models can be modified to accept any one of the following signal ranges: ±200mVdc ±20Vdc ±200Vdc ±200mA ±20mA ±2mA ±200µA There is one exception: 4½ DIGIT PANEL METERS (ANY OF THE MODELS WHOSE SUFFIX BEGINS WITH A “4”) CANNOT BE MODIFIED FOR THE ±200mV RANGE. MAKING THE MODIFICATION Making a range change modification is a relatively simply procedure, however, familiarity with proper soldering techniques is required. When handling the panel meter printed circuit boards, care should be taken to avoid a discharge of static electricity which could damage the meter’s sensitive CMOS circuits. A grounding wrist strap should be worn when handling the PC boards. To make a range change modification, follow these steps: 1. Locate your panel meter model and the desired range in the tables below. Note that the 200mV range is the only range which requires different components depending on the meter model. DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • Email: [email protected] • Internet: www.datel.com RN-3100/-4100 PA N E L M E T E R R A N G E C H A N G E K I T TABLE 1: RANGE CHANGE MODIFICATIONS APPLICABLE TO ALL MODELS RANGE MODIFICATION 20V 200V 200mA 20mA 2mA 200µA R1=4.22M R1=4.22M R2=10 R2=100 R2=1K R2=10K R2=464K R2=42.2K SGl=OPEN* SGl=OPEN* *For DM-4105/4106, Open SG4 (Leave SGl Closed). TABLE 2: 200mV RANGE CHANGE MODIFICATIONS MODEL 200mV RANGE MODIFICATION DM-3100N DM-3100Ul DM-3100U2 DM-3100U3 DM-3101 DM-3100B DM-3104 DM-3100L DM-3103 DM-3100X C3=0.47µF C3=0.47µF C3=0.47µF C3=0.47µF C3=0.47µF C3=0.47µF C3=0.47µF C3=0.47µF C3=0.47µF C3=0.47µF C4=l.0µF C4=l.0µF C4=l.0µF C4=l.0µF C4=l.0µF C4=l.0µF C4=l.0µF C4=l.0µF C4=l.0µF C4=l.0µF R5=46.4K R5=46.4K R5=46.4K R5=46.4K R5=46.4K R7=46.4K R7=46.4K R5=46.4K R5=46.4K R5=46.4K R7=6.65K R7=6.65K R7=6.65K R7=6.65K R7=6.65K R9=6.65K R9=6.65K R7=6.65K R7=6.65K R7=6.65K R8=50 pot. R8=50 pot. R8=50 pot. R8=50 pot. R8=50 pot. R10=50 pot. R10=50 pot. R8=50 pot. R8=50 pot. R8=50 pot. R9=75 R9=75 R9=75 R9=75 R9=75 Rll=75 Rll=75 R9=75 R9=75 R9=75 2) Locate the loose components in this kit which will be required to change your particular meter to the desired range. In the tables above, components prefaced with "C" are capacitors, resistors are listed with an "R" followed by the resistance value in Ohms, and potentiometers are indicated by the abbreviation "pot". Solder gaps are denoted by "SG". 3) Open the meter’s case to gain access to the printed circuit board. Low profile models are opened by snapping off the rear panel, using a screwdriver to carefully depress the retaining tabs located on the sides of the meter. Access to short-depth models is achieved by removing the cotter pin at the rear of the meter, snapping off the front bezel, and sliding the PC board forward. 4) Compare the PC board to the assembly drawing for that model as given in this document. Locate the component and solder gap locations which pertain to the desired modification. Note that some component locations will have no component installed. For example, Rl and R2 locations for all models do not have components installed. 5) Remove and replace components as necessary to achieve the desired modification. NOTE: WHEN MODIFYING UNITS TO THE 200V RANGE, IT IS RECOMMENDED THAT THE OPEN SOLDER GAP SG1 BE COVERED WITH CONFORMAL COATING. 6) After reassembling the unit, you may need to recalibrate the meter. This procedure is described in each meter’s data sheet. A generalized calibration procedure is as follows: a) Power-on the meter and allow it to warm up for ten minutes. b) Using a precision voltage source, provide a near full-scale positive signal to the meter’s inputs. c) Adjust the meter’s gain potentiometer (located at the rear) until the display is correct. d) Reverse the polarity of the signal input and check the meter’s reading. REPAIR RETURNS When returning a modified meter to DATEL for repair, the unit must be restored to its orignal ±2V input configuration prior to return. Damage to the meter caused by improper modification will void the unit’s warranty. 2 RN-3100/-4100 PA N E L M E T E R R A N G E C H A N G E K I T DATEL P/N: DM-3100B/3104 SG1 located on component side of PC board 4 PA N E L M E T E R R A N G E C H A N G E K I T DATEL P/N: DM-3100L/3103 SG1 located on component side of PC board 5 RN-3100/-4100 RN-3100/-4100 PA N E L M E T E R R A N G E C H A N G E K I T DATEL P/N: DM-3100N/3101 SG1 located on component side of PC board 6 PA N E L M E T E R R A N G E C H A N G E K I T RN-3100/-4100 DATEL P/N: DM-3100U2/U3 SG1 located on non-component side of PC board 7 RN-3100/-4100 PA N E L M E T E R R A N G E C H A N G E K I T DATEL P/N: DM-3100U1 SG1 located on component side of PC board 8 PA N E L M E T E R R A N G E C H A N G E K I T DATEL P/N: DM-3100X SG1 located on non-component side of PC board 9 RN-3100/-4100 RN-3100/-4100 PA N E L M E T E R R A N G E C H A N G E K I T SG1 located on non-component side of PC board DATEL P/N: DM-4100D 10 PA N E L M E T E R R A N G E C H A N G E K I T RN-3100/-4100 DATEL P/N: DM-4101N SG1 located on non-component side of PC board 11 RN-3100/-4100 PA N E L M E T E R R A N G E C H A N G E K I T DATEL P/N: DM-4101D SG1 located on reverse side of board underneath R1 12 PA N E L M E T E R R A N G E C H A N G E K I T DATEL P/N: DM-4101L SG1 located on non-component side of PC board 13 RN-3100/-4100 RN-3100/-4100 PA N E L M E T E R R A N G E C H A N G E K I T DATEL P/N: DM-4105/4106 SG4 located on non-component side of PC board 14 PA N E L M E T E R R A N G E C H A N G E K I T RN-3100/-4100 DATEL P/N: DM-4200 SG1 located on non-component side of PC board DWG NO. 17619 Rev. A DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 Internet: www.datel.com Email: [email protected] Data sheet fax back: (508) 261-2857 DATEL (UK) LTD. Tadley, England Tel: (01256)-880444 DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 01-34-60-01-01 DATEL GmbH München, Germany Tel: 89-544334-0 DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-354-2025 DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.