Difference between revisions of "TekPower TP4000ZC"
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* [http://www.youtube.com/watch?v=7pbRLom7bNc Video review of TP4000ZC (Part 2/2)] | * [http://www.youtube.com/watch?v=7pbRLom7bNc Video review of TP4000ZC (Part 2/2)] | ||
* [http://www.multimeterwarehouse.com/TP4000ZC/TP4000ZC_serial_protocol.pdf TP4000ZC serial protocol] | * [http://www.multimeterwarehouse.com/TP4000ZC/TP4000ZC_serial_protocol.pdf TP4000ZC serial protocol] | ||
* [http://www.multimeterwarehouse.com/TP4000ZC.htm multimeterwarehouse.com: TP4000ZC] | |||
* [http://www.multimeterreviews.com/tekpower-tp4000zc-pc-based-rs232-interaced-auto-ranging-digital/ multimeterreviews.com: TekPower TP4000ZC (PC RS232 Interface)] | |||
* [http://mjlorton.com/forum/index.php?topic=103.0 mjlorton.com: T4D 22 TekPower TP4000ZC] | |||
[[Category:Device]] | [[Category:Device]] | ||
[[Category:Multimeter]] | [[Category:Multimeter]] | ||
Revision as of 14:13, 2 November 2012
The TekPower TP4000ZC is a 4000 counts, CAT II (600V) handheld digital multimeter with RS232 connectivity.
This multimeter is a rebadged Digitek DT4000ZC.
Hardware
Multimeter:
- Multimeter IC: The microcontroller is an unidentifiable plastic blob (based on the communication protocol, probably a Fortune Semiconductor FS9721_LP3)
- LM358 opamp
- HEF4013BT flip-flop
The RS-232 connector is a standard 3.5m stereo jack, with the ring left unconnected. The transmitter is optically insulated from the rest of the device. The DB-9 connector has a loopback resistor between the RX and TX pins.
Cable:
See Device_cables#Digitek_DT4000ZC_cable.
Photos
Multimeter:
Device, angle
Mugshot
Device, back
Package contents
Holster removed, front
Holster removed, back
Battery compartment
Rear cover
Front cover
Rear cover, PCB removed
PCB, front
PCB, back
Chip
HEF4013BT flip-flop
LM358 opamp
RS-232 optoisolation
RS-232 module
RS-232 PCB, bottom
RS-232 PCB, top
Cable:
See Device_cables#Digitek_DT4000ZC_cable.
Protocol
See Multimeter_ICs#Fortune_Semiconductor_FS9721_LP3.
User bit 2 is used to indicate temperature measurement in degrees Celsius.