Manuale d’uso / di manutenzione del prodotto Digital Wattmeter DWM-4 del fabbricante Macsense Connectivity
Vai alla pagina of 12
- 1 - Welcome : Thank you for your purchase of the DWM-4 Digital Wattmeter. The DWM-4 represents an advancement in technology that has never before been available in RF power measurement.
- 2 - in the assembly instructions to assist the builder. These can be used for parts identification and PC board placement. Assembly: You will first install (locate, place, and solder in place) the parts on the DWM-4 Main PC board. Use the silk screen layout in the back of this manual to assist in locating where parts are to be installed.
- 3 - ___ Install the socket for U1. Note the orientation of the socket. The flattened corner goes in the upper left, toward the 14-pin DIP socket for U3. Do not install U1 (the 68HC11) until later. ___ Install the 8 MHz crystal. ___ Install the electrolytic capacitor, C2, 10uf radial.
- 4 - ___ Install the LCD Module in the chassis. Use the 4 black flat head screws, the two #4 nylon washers and four nuts. Use the washers on the Status/SWR side of the chassis. Do not over tighten the mounting screws. ___ Install the SPST toggle switch (SW1) in the chassis in the Power On position.
- 5 - You are now ready to mount the DWM PC board in the chassis. ___ Install the DWM-4 PC board in the chassis using four screws, nylon spacers, washers and nuts. Do not drill out the holes in the PC board ___ Install U1 (the 68HC11) by carefully pressing it into place in its socket.
- 6 - ___ Install the .01uf monolithic capacitors, C1 and C2. ___ Install 1/8" ste reo jack. ___ Unwrap the enclosure. Install the SO-239 connectors. Put one #4 screw in hole and place two nuts on the screw. Repeat with the other three screws. Do not tighten them at this time.
- 7 - HF/QRP Remote Sensor Assembly Instructions ___ Wind T1 with 10 turns using the red and gr een #28 gauge wire. T1 is the small, black toroid just under one half inch in diameter. See picture below and wind this in bifiliar fashion by using two lengths of wire and winding them at the same time.
- 8 - ___ Install C4, 3.5-13 pf trimmer capacitor. Note that C4 has two pins that are common (connected). They should line up with the two holes in the PC board that are connected together with a trace on the bottom. ___ Install T1. It lies flat against the PC board and the #18 wire will pass through the center (you will install this later).
- 9 - Installation: The DWM-4 operates from an 11 to 15 volt DC power source. The current requirement is about 75 mA. Be sure to use a power supply or power adapter that meets these requirements. The coaxial DC jack on the back of the display unit will accept a plug with an OD of 5.
- 10 - menu offers information about each of the four sensor inputs. Some items are common across different menus. There are two basic wattmeter modes: setup and operate.
- 11 - At a minimum, a 100 W HF radio and good 50ohm dummy load can be used to calibrate the HF sensor and display unit. Even if you know how much power your radio emits, consider using an additional wattmeter of known accuracy to assist you during the calibration process.
- 12 - was installed correctly. Make sure U3 is installed correctly. Check D1 for polarity. Check the SIP resistor (RP1) for proper orientation. No Display: Make sure the 14-pin ribbon cable is installed and oriented properly. Be sure the nylon washers are in place on the two nuts closest to the outside.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Macsense Connectivity Digital Wattmeter DWM-4 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Macsense Connectivity Digital Wattmeter DWM-4 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Macsense Connectivity Digital Wattmeter DWM-4 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Macsense Connectivity Digital Wattmeter DWM-4 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Macsense Connectivity Digital Wattmeter DWM-4, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Macsense Connectivity Digital Wattmeter DWM-4.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Macsense Connectivity Digital Wattmeter DWM-4. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Macsense Connectivity Digital Wattmeter DWM-4 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
