Difference between revisions of "TekPower TP4000ZC"

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the TekPower TP4000ZC is a 4000 counts handheld digital multimeter with RS232 connectivity.
{{Infobox multimeter
| image          = [[File:Tp4000zc_front.png|180px]]
| name            = TekPower TP4000ZC
| status          = supported
| source_code_dir = serial-dmm
| counts          = 4000
| categories      = CAT II (600V)
| connectivity    = [[Device_cables#Digitek_DT4000ZC_cable|RS232]]
| measurements    = voltage, resistance, continuity, diode, capacitance, frequency, temperature, current, duty cycle
| features        = autorange, data hold, relative
| website        = [http://www.tekpower.us tekpower.us]
}}
 
The '''TekPower TP4000ZC''' is a 4000 counts, CAT II (600V) handheld digital multimeter with RS232 connectivity.
 
This multimeter is a rebadged [[Digitek DT4000ZC]].


== Hardware ==
== Hardware ==
TODO
 
'''Multimeter:'''
 
* '''Multimeter IC''': The microcontroller is an unidentifiable plastic blob (based on the communication protocol, probably a [[Multimeter_ICs#Fortune_Semiconductor_FS9721_LP3|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.
 
'''Cable:'''
 
* See [[Device_cables#Digitek_DT4000ZC_cable]].
* The DB-9 connector has a loopback resistor between the RX and TX pins.
 
== Photos ==
== Photos ==


TODO
'''Multimeter:'''


== Protocol ==
<gallery>
File:Tp4000zc_angle.png|<small>Device, angle</small>
File:Tp4000zc_front.png|<small>Mugshot</small>
File:Tp4000zc_back.jpg|<small>Device, back</small>
File:Tp4000zc_contents.jpg|<small>Package contents</small>
File:Tp4000zc_front_nocover.png|<small>Holster removed, front</small>
File:Tp4000zc_back_nocover.jpg|<small>Holster removed, back</small>
File:Tp4000zc_batt.jpg|<small>Battery compartment</small>
File:Tp4000zc_open_back.jpg|<small>Rear cover</small>
File:Tp4000zc_open_front.jpg|<small>Front cover</small>
File:Tp4000zc_open_front noboard.jpg|<small>Rear cover, PCB removed</small>
File:Tp4000zc_pcb_front.jpg|<small>PCB, front</small>
File:Tp4000zc_pcb_back.jpg|<small>PCB, back</small>
File:Tp4000zc_chip.jpg|<small>Chip</small>
File:Tp4000zc_chip_HEF4013BT.jpg|<small>HEF4013BT flip-flop</small>
File:Tp4000zc_chip_LM358.jpg|<small>LM358 opamp</small>
File:Tp4000zc_232_optoisolation.jpg|<small>RS-232 optoisolation</small>
File:Tp4000zc_232_module.jpg|<small>RS-232 module</small>
File:Tp4000zc_232_pcb_back.jpg|<small>RS-232 PCB, bottom</small>
File:Tp4000zc_232_pcb_front.jpg|<small>RS-232 PCB, top</small>
</gallery>


The device periodically sends 14-byte packets at 2400 baud, 8n1.
'''Cable:'''
The packet includes a mode indicator, payload and checksum. the payload is a 1-1 mapping of the LCD segments.


=== Packet structure ===
See [[Device_cables#Digitek_DT4000ZC_cable]].
TODO


=== Segment lettering ===
== Protocol ==


    |--A--|
See [[Multimeter_ICs#Fortune_Semiconductor_FS9721_LP3]].
    |    |
    F    B
    |    |
    |--G--|
    |    |
    E    C
    |    |
    |--D--|


User bit 2 is used to indicate temperature measurement in degrees Celsius.


== Resources ==
== Resources ==


* [http://TODO] (TODO)
* [http://www.youtube.com/watch?v=kXzAD74C5As Video review of TP4000ZC (Part 1/2)]
 
* [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.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]]
[[Category:Supported]]

Latest revision as of 23:12, 21 January 2013

TekPower TP4000ZC
Tp4000zc front.png
Status supported
Source code serial-dmm
Counts 4000
IEC 61010-1 CAT II (600V)
Connectivity RS232
Measurements voltage, resistance, continuity, diode, capacitance, frequency, temperature, current, duty cycle
Features autorange, data hold, relative
Website tekpower.us

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.

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.

Resources

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