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2026-04-23T10:03:41Z
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https://sigrok.org/w/index.php?title=MASTECH_M9803R&diff=14764
MASTECH M9803R
2020-01-05T13:25:02Z
<p>Hansake: /* Protocol */</p>
<hr />
<div>{{Infobox multimeter<br />
| image = [[File:800px-Mastech_m9803r_device_front.png|180px]]<br />
| name = MASTECH M9803R<br />
| status = planned<br />
| source_code_dir = <br />
| counts = 4000<br />
| categories = CAT II (1000V)<br />
| connectivity = RS232<br />
| measurements = voltage, resistance, diode, capacitance, frequency, current, hFE<br />
| features = autorange, true-rms, data hold, delay hold, min/max, relative, bargraph, backlight<br />
| website = [http://web.archive.org/web/20100201191512/http://www.p-mastech.com/products/04_dm/m9803r.html p-mastech.com]<br />
}}<br />
<br />
The '''MASTECH M9803R''' is a 4000 counts, CAT II (1000V) digital bench multimeter with RS232 connectivity. <br />
<br />
== Hardware ==<br />
<br />
TODO.<br />
<br />
== Photos ==<br />
<br />
'''Multimeter''':<br />
<br />
<gallery><br />
</gallery><br />
TODO.<br />
<br />
'''RS232 cable:'''<br />
<br />
TODO.<br />
<br />
== Protocol ==<br />
<br />
The protocol is documented in: [http://www.mtoussaint.de/cdmm/doc/html/classM9803R.html cdmm&#58; M9803R Class Reference]<br />
<br />
<pre><br />
Detailed Description<br />
M9803R 11 byte binary protocoll.<br />
<br />
Reverse engeneered by Matthias Toussaint<br />
<br />
Port settings seem to be 9600 7E1 or 9600 7O1 (looks like a bug)<br />
Protocoll is 11 bytes binary fixed length<br />
END OF PACKET is 0x0d 0x0a<br />
Multimeter continuously sends data<br />
<br />
Byte 0: Sign ored together<br />
0x00 -> positive<br />
0x08 -> negative<br />
0x01 -> overflow<br />
<br />
Byte 1: Digit 4 binary<br />
Byte 2: Digit 3 binary<br />
Byte 3: Digit 2 binary<br />
Byte 4: Digit 1 binary<br />
<br />
Byte 5: Mode<br />
0x00 DCV<br />
0x01 ACV<br />
0x02 DCA<br />
0x03 ACA<br />
0x04 Ohms<br />
0x05 Ohms + Beep<br />
0x06 Diode V<br />
0x07 ADP<br />
0x08 DCA (10A)<br />
0x09 ACA (10A)<br />
0x0A Freq<br />
0x0C Capacity<br />
<br />
Byte 6:Decimal point position<br />
Display Unit Value<br />
Frequency<br />
0.000 kHz 0x00<br />
00.00 kHz 0x01<br />
00.00 Hz 0x05<br />
000.0 Hz 0x06<br />
Voltage<br />
000.0 mV 0x00<br />
0.000 V 0x01<br />
00.00 V 0x02<br />
000.0 V 0x03<br />
0000. V 0x04<br />
Current<br />
0.000 mA 0x00<br />
00.00 mA 0x01<br />
000.0 mA 0x02<br />
Capacity<br />
0.000 nF 0x00<br />
00.00 nF 0x01<br />
000.0 nF 0x02<br />
0.000 uF 0x03<br />
00.00 uF 0x04<br />
Resistance<br />
000.0 Ohm 0x00<br />
0.000 kOhm 0x01<br />
00.00 kOhm 0x02<br />
000.0 kOhm 0x03<br />
0000. kOhm 0x04<br />
00.00 MOhm 0x05<br />
<br />
Byte 7: Hold/min/Max/Rel ored together<br />
0x01 Hold<br />
0x02 Rel<br />
0x04 Min<br />
0x08 Max<br />
<br />
Byte 8: Auto/Manu<br />
0x01 APOF (AutoPowerOff)<br />
0x02 Manu<br />
0x04 Auto<br />
0x08 MEM<br />
</pre><br />
<br />
== Resources ==<br />
<br />
* [http://www.pollin.de/shop/downloads/D830256B.PDF Manual]<br />
* [http://www.pollin.de/shop/downloads/D830256S.ZIP Vendor software]<br />
<br />
[[Category:Device]]<br />
[[Category:Multimeter]]<br />
[[Category:Planned]]</div>
Hansake
https://sigrok.org/w/index.php?title=MASTECH_M9803R&diff=14763
MASTECH M9803R
2020-01-05T13:24:08Z
<p>Hansake: /* Protocol */</p>
<hr />
<div>{{Infobox multimeter<br />
| image = [[File:800px-Mastech_m9803r_device_front.png|180px]]<br />
| name = MASTECH M9803R<br />
| status = planned<br />
| source_code_dir = <br />
| counts = 4000<br />
| categories = CAT II (1000V)<br />
| connectivity = RS232<br />
| measurements = voltage, resistance, diode, capacitance, frequency, current, hFE<br />
| features = autorange, true-rms, data hold, delay hold, min/max, relative, bargraph, backlight<br />
| website = [http://web.archive.org/web/20100201191512/http://www.p-mastech.com/products/04_dm/m9803r.html p-mastech.com]<br />
}}<br />
<br />
The '''MASTECH M9803R''' is a 4000 counts, CAT II (1000V) digital bench multimeter with RS232 connectivity. <br />
<br />
== Hardware ==<br />
<br />
TODO.<br />
<br />
== Photos ==<br />
<br />
'''Multimeter''':<br />
<br />
<gallery><br />
</gallery><br />
TODO.<br />
<br />
'''RS232 cable:'''<br />
<br />
TODO.<br />
<br />
== Protocol ==<br />
<br />
The protocol is documented in [http://www.mtoussaint.de/cdmm/doc/html/classM9803R.html cdmm&#58; M9803R Class Reference]<br />
<br />
<pre><br />
Detailed Description<br />
M9803R 11 byte binary protocoll.<br />
<br />
Reverse engeneered by Matthias Toussaint<br />
<br />
Port settings seem to be 9600 7E1 or 9600 7O1 (looks like a bug)<br />
Protocoll is 11 bytes binary fixed length<br />
END OF PACKET is 0x0d 0x0a<br />
Multimeter continuously sends data<br />
<br />
Byte 0: Sign ored together<br />
0x00 -> positive<br />
0x08 -> negative<br />
0x01 -> overflow<br />
<br />
Byte 1: Digit 4 binary<br />
Byte 2: Digit 3 binary<br />
Byte 3: Digit 2 binary<br />
Byte 4: Digit 1 binary<br />
<br />
Byte 5: Mode<br />
0x00 DCV<br />
0x01 ACV<br />
0x02 DCA<br />
0x03 ACA<br />
0x04 Ohms<br />
0x05 Ohms + Beep<br />
0x06 Diode V<br />
0x07 ADP<br />
0x08 DCA (10A)<br />
0x09 ACA (10A)<br />
0x0A Freq<br />
0x0C Capacity<br />
<br />
Byte 6:Decimal point position<br />
Display Unit Value<br />
Frequency<br />
0.000 kHz 0x00<br />
00.00 kHz 0x01<br />
00.00 Hz 0x05<br />
000.0 Hz 0x06<br />
Voltage<br />
000.0 mV 0x00<br />
0.000 V 0x01<br />
00.00 V 0x02<br />
000.0 V 0x03<br />
0000. V 0x04<br />
Current<br />
0.000 mA 0x00<br />
00.00 mA 0x01<br />
000.0 mA 0x02<br />
Capacity<br />
0.000 nF 0x00<br />
00.00 nF 0x01<br />
000.0 nF 0x02<br />
0.000 uF 0x03<br />
00.00 uF 0x04<br />
Resistance<br />
000.0 Ohm 0x00<br />
0.000 kOhm 0x01<br />
00.00 kOhm 0x02<br />
000.0 kOhm 0x03<br />
0000. kOhm 0x04<br />
00.00 MOhm 0x05<br />
<br />
Byte 7: Hold/min/Max/Rel ored together<br />
0x01 Hold<br />
0x02 Rel<br />
0x04 Min<br />
0x08 Max<br />
<br />
Byte 8: Auto/Manu<br />
0x01 APOF (AutoPowerOff)<br />
0x02 Manu<br />
0x04 Auto<br />
0x08 MEM<br />
</pre><br />
<br />
== Resources ==<br />
<br />
* [http://www.pollin.de/shop/downloads/D830256B.PDF Manual]<br />
* [http://www.pollin.de/shop/downloads/D830256S.ZIP Vendor software]<br />
<br />
[[Category:Device]]<br />
[[Category:Multimeter]]<br />
[[Category:Planned]]</div>
Hansake