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GAOTek Milliohm Meter with Auto Shutdown (Internal, Manual Trigger)
GAOTek Milliohm Meter with Auto Shutdown (Internal, Manual Trigger)

GAOTek Milliohm Meter With Auto Shutdown (Internal, Manual Trigger)

ID: GT00YM00ZY
Category:

USD

Overview

GAOTek Milliohm Meter with Auto shutdown feature adopts high- performance 32-bit ARM processor. It is a meter with high accuracy and wide measurement range. Its unique feature of current testing mode can adapt different testing requirements. A long time accurate and convenient measurements of passive components can be achieved in all occasions with a wide measurement range from 10 uΏ to 20 MΏ and maximum reading 20000 digits. It can guarantee 0.05 % accuracy even under the condition that the testing speed is under 15/s. This device is also equipped with mini-USB interface to apply to remote control, data acquisition and analysis.

Features

  • Measurement range of 10 μΩ to 20 MΩ with 0.05 % accuracy
  • Low current mode available on both testers, high current available
  • Seven manual/auto ranges
  • Dual-colour protective cast shell casing
  • Battery and external power supply
  • Automatic power off function
  • ABS/PER/SEQ comparison criteria
  • 5″ full colour screen
  • Auto zero adjust for each range
  • Four terminal resistance measurement
  • Mini-USB interface
  • SCPI-compatible command sets
  • Keypad lock function
  • Background lightness adjustment function
  • Automatic shutdown when left idle

Technical Specifications

Parameters DC Resistance
Adjustment Short circuit zero adjust for each range
Comparator Built-in sorting record, GD/NG sorting result display
Measurement Current I – Max : < 1A

Current mode : high current, low current

Measurement Range 10 uΏ – 20 MΏ
Accuracy 0.05 %
Trigger Internal, manual and remote
Test Lead
Temperature Compensation Accuracy : 0.02 C

Measurement Range: 32 ◦F to 176 ◦F (0 ◦C  to 80 ◦C)

Interface
Max Reading 2000 digits
Result Display ABS, PER, SEQ compare way
Speed 30 times per second, 15 times per second, 3 times per second
Weight 1.10 lbs (500 g)
Dimensions 8.29 in x 5.12 in x 1.49 in (210.76 mm (Length)*130.23 mm (Width)*37.88 mm (Height))
Humidity  ≤ 65 % RH
Correction Short-circuit clear zone
Warming Time  > 60 min
Adjustment Time  12 months
Working Environment Normal Temperature 59 ◦F to 95 ◦F ( 15 ◦C to 35 ◦C) Humidity < 80 % RH
Working Temperature: 50  ◦F to 104 ◦F (10 ◦C to 40 ◦C) Humidity 10 to 90 % RH
Storage Temperature: 32  ◦F to 122 ◦F (0 ◦C to 50 ◦C) Humidity 10 to 90 % RH
High Current Mode
Speed Fast 30 times/sec
Med 15 times/sec
Slow 3 times/sec

Additional Information

Main Functions

Correction

Short-circuit correction for all ranges

Comparator (Sorting Function)

Set up sorting function to do GD/NG sorting

  • Comparator Methods:

Absolute value of tolerance ±TOL sorting

Percentage tolerance %TOL sorting

Sequence comparison sorting

  • Beep Feature:

Beep: OFF/GD/NG

Interface:

  1. USB Host Port
  2. Mini-USB Slave Port
  3. Reserved Interfaces
  4. Power Adaptor

Power Supply

The instrument can be powered by Li battery. When the battery is low, only power adaptor can charge the battery.

Charge the Battery

Use the power adaptor to charge the battery. The power key is orange when charging the battery even the instrument turned off. When the battery is full, the indicator is out.

Turn On/Off

Press power key softly to start or turn off the instrument

<MEAS DISPLAY>Page

Press [MEAS] to enter <MEAS DISPLAY>Page.

The [MEAS] page includes following setup:

  • Trigger
  • Range
  • Mode– Current Mode
  • Speed – Test Speed
  • Comparator– Sorting Settings
  • Beep – Beep Settings

[TRIGGER]

Internal trigger, manual trigger and remote trigger

Trigger
Internal Internal Trigger
Manual Press [Enter] once, the instrument runs a test cycle
Remote Received a RS-232 trigger command, the instrument runs a test cycle

 [RANGE]

Instrument has three range modes:

Range Pros Cons
Auto Automatically select the best according to impedance range is automatically set Very convenient Test speed is slower than manual ranging
Manual The instrument will always use the user specified range Highest speed Set the range previously
Nominal Automatically select the best range according to nominal value Best mode in sorting Only availabe in sorting mode

Measurement Range

Range   Measurement Range
9 20 MΏ 2 MΏ to 20 MΏ
8 2 MΏ 200 KΏ to 2 MΏ
7 200 KΏ 200 KΏ to 2 KΏ
6 20 KΏ 20 KΏ to 200KΏ
5 2 KΏ 2 KΏ to 20 KΏ
4 200 Ώ 200Ώ to 20 KΏ
3 20 Ώ 20 Ώ to 200 Ώ
2 2 Ώ 2 Ώ to 20 Ώ
1 200 MΏ 20 MΏ to 200 MΏ
0 20 MΏ 0  to 20 MΏ

Current (Mode)

Instrument includes two current modes:

High current and low current modes

Range High Current mode Low current mode
0 100 mA 100 mA
1 100 mA 100 mA
2 100 mA 10 mA
3 10 mA 1 mA
4 1 mA 100 uA
5 1 mA 100 uA
6 100 uA 10 uA
7 10 uA 10 uA

SPEED

Slow, Med and Fast can be selected

Slow mode will result in more stable and accurate measurement result

Comparator (COMP)

Set the comparator parameter in <COMP SETUP> page

<COMP SETUP>Page

Press [MEAS] to enter <MESA DISPLAY> page, select [COMP SETUP] to enter<COMP SETUP>page.

COMP – On/Off

BEEP –OFF/GD.NG

MODE – Sorting methods

NOM – Input Nominal Value

LOW– Input low limited value

HIGH – Input high limited value.

Comparator [MODE]

Procedure to set comparator mode:

Step 1 Press  <Meas Display> page
Step 2 Select (Comp setup) to enter <Comp setup> page
Step 3 Use cursor key to select [ Mode]
Step 4 ABS  Result – nominal
PER % (Result – nominal ) / nominal x 100 %
DIRECT SEQ Compare result with low high limited values

Comparator [NOM]

Nominal value must be positive

Procedure to input nominal value:

Step 1 Press [MEAS] to enter <MEAS DISPLAY> page
Step 2 Select [COMP SETUP] to enter <COMP SETUP> page.
Step 3 Use cursor key to select [NOM]
Step 4 Input the nominal value

Comparator [LOW] and [High]

  • ABSΔ — Input the absolute value of parameter.
  • PERΔ%— Input the relative value of parameter in %.
  • Direct SEQ — Input the direct value of parameter.
  • Procedure to input high/low limited values: /9*-

[BEEP] Feature:

Procedure to set the beep

Step 1 Press [Meas] key to enter measurement range
Step 2 Use the cursor key to select [SPEED] field
Step 3 OFF Turn beep off
GD Beep while pass
NG Beep while fail

Icons on <MEAS Display>

Icon Description
  Powered by Li battery
  Powered by external power supply
  USB-Disk is available
H Hold current data

< SETUP> page

Press [Setup] key to enter <SETUP>page.

In <SETUP> page, if the testing is not progress the Instrument does not display the measurement result and comparator result.

The <SETUP> page includes following setup:

  • Trigger Mode [TRIGGER]
  • Measurement Range [RANGE]
  • Test Speed [SPEED]
  • Comparator [COMP] ON/OFF
  • BEEP Feature
  • Soft key CLEAR ZERO – Clear Zero Correction
  • RESMODE – AC Resistance Sorting Methods
  • VOLTCOMP– DC Voltage Sorting Methods
  • ResNom – Input Resistance Nominal Value
  • ResLow – Input Resistance Low Limit
  • ResHigh – Input Resistance High Limit
  • VoltNom – Input Voltage Nominal Value
  • VoltLow – Input Voltage Low Limit
  • VoltHigh – Input Voltage High Limit

Some settings can be also set up in <MEAS DISPLAY> page.

Short-circuit Clear Zero [CLEAR ZERO]

Press [Setup] key to enter < SETUP> page, and then press [CLEAR ZERO] soft key to do short-circle clear zero. Once it’s done with short-circuit clear zero the value will be saved into internal flash disk.

Note:

It is necessary to do short-circle clear zero. When replace the test fixture or test cables, it is must to do short –circle clear zero.

Connect the test clip as shown in the below figure.

RS232 [BAUD] rate

Connect the instrument to computer via Mini-USB to RS-232 port and the instrument will communicate with PC, meanwhile the keypad will be locked. Use the SCPI language in Mini-USB programming.

Mini-USB to RS232 format:

  • Data bits: 8
  • Stop bits: 1
  • Parity: none
Step 1 Press [SYSTEM] bottom soft key to enter <SYSTEM CONFIG> page
Step 2 Use the cursor key to select [BAUD] field
Step 3 1200 For the communication, converter opt with coupler isolation
9600
38400
57600
115200 Best for communication with PC

<SYSTEM INFORMATION>

Step 1 Press [Meas] or <Setup>key to enter main page
Step 2 Press bottom soft key [SYSTEM] to enter <SYSTEM CONFIG>
Step 3 Press soft key [SYSTEM INFORMATION] to enter <SYSTEM INFORMATION> page

AC Resistance Range:

Range Max. Reading Resolution FAST MED SLOW Test Current
0 20 mΩ 22.00 mΩ 0.01 mΩ 0.8% ± 5 0.6% ± 3 0.5% ± 2 10 mA
1 200 mΩ 220.0 mΩ 0.1 mΩ 0.8% ± 4 0.6% ± 3 0.5% ± 2 1 mA
2 2 Ω 2.200 Ω 1 mΩ 0.8% ± 4 0.6% ± 3 0.5% ± 2 0.1 mA
3 20 Ω 22.00 Ω 10 mΩ 0.8% ± 4 0.6% ± 3 0.5% ± 2 10 µA
4 200 Ω 220.0 Ω 100 mΩ 0.8% ± 4 0.6% ± 3 0.5% ± 2 5 µA
5 2 kΩ 2.200 kΩ 1 Ω 0.8% ± 4 0.6% ± 3 0.5% ± 2 2 µA

Open-circuit Voltage: < 30 mVrms

DC Voltage Range:

Range Max. Reading Resolution FAST MED SLOW
1 5.0000 V 5.0000 V 0.0002 V 0.5% ± 4 0.5% ± 2 0.1% ± 5
2 50.000 V 50.000 V 0.002 V 0.5% ± 4 0.5% ± 3 0.1% ± 5

Room Temperature Calibration

As the temperature probe was installed inside the instrument. It will cause deviation in measuring, especially in highest brightness. You need to calibrate the room temperature. Brightness to be adjusted to 50 % or less and warming time must be more than 15 minutes.

Procedure to calibrate temperature:

Step 1 Press [Setup] to enter <SETUP DISPLAY>page
Step 2 Select [TEMP CALIBRATE]
Step 3 Select [OK]
Step 4 Input the temperature value and press [Enter] to finish

Reset Room Temperature Calibration Factor

To reset the temperature calibration Factor that set at [TEMP CALIBRATE].

Step 1 Press [Setup] to enter <SETUP DISPLAY>page
Step 2 Select [TEMP RESET]
Step 3 Press [OK] to finish temperature reset

<SYSTEM CONFIG>page

LANGUAGE

DATE/TIME

ACCOUNT

Backlight-LED [BkLed]

SHUTDOWN

All settings in <SYSTEM CONFIG> will be saved automatically

 

[LANGUAGE]

Procedure to change language:

Step 1 Press [MEAS] or [Setup] to enter main page
Step 2 Press bottom soft key [SYSTEM] to enter <SYSTEM CONFIG>
Step 3 Use cursor keys to select[Language ]
Step 4 CHINESE/ENGLISH

[ACCOUNT], [PASSWORD]

ADMIN – Except [SYSTEM SERVICE], all settings are available and can be saved in ADMIN section.

USER – Except [SYSTEM SERVICE], all settings are available but cannot be saved in USER section.

Procedure to set account:

Step 1 Press [MEAS] or [Setup] to enter main page
Step 2 Press bottom soft key [SYSTEM] to enter <SYSTEM CONFIG>
Step 3 Use cursor key to select[ACCOUNT]
Step 4 Except <SYSTEM SERVICE>, all settings are available and can be saved in ADMIN section

Except<SYSTEM SERVICE>, all settings are available but cannot be saved in USER section

Procedure to Set Password

Step 1 Press [MEAS] or [Setup] to enter main page
Step 2 Press bottom soft key [SYSTEM] to enter <SYSTEM CONFIG>
Step 3 Use cursor key to select [PASSWORD]
Step 4 No more than 9 digits and only digits and letters can be input. Contact us if you forget your password to CHANGE PASSWORD/ DELETE PASSWORD

[DATE], [TIME]

The instrument uses a 24-hour time

Step 1 Press [MEAS] or [SETUP] to enter main page
Step 2 Press bottom soft key [SYSTEM] to enter<SYSTEM CONFIG>
Step 3 Use cursor keys to select [DATE]
Step 4 YEAR INCR+

YEAR DECR-

MONTH INCR+

Procedure to set time:

Step 1 Press [MEAS] or [SETUP] to enter main page
Step 2 Press bottom soft key [SYSTEM] to enter<SYSTEM CONFIG>
Step 3 Use cursor keys to select [TIME]
Step 4 HOUR INCR+
HOUR DECR-
MINUTE INCR+
MINUTE DECR-
SECOND INCR+
SECOND DECR-

Procedure to set background brightness:

Step 1 Press [MEAS] or [SETUP] to enter main page
Step 2 Press bottom soft key [SYSTEM] to enter<SYSTEM CONFIG>
Step 3 Use cursor keys to select [BKLed]
Step 4 Bright 10 % Low power
Bright 25 %  Default set
Bright 50 %
Bright 75 %
Bright 100 % High power

[SHUTDOWN]

Procedure to set auto power off:

Step 1 Press [MEAS] or [SETUP] to enter main page
Step 2 Press bottom soft key [SYSTEM] to enter<SYSTEM CONFIG>
Step 3 Use cursor keys to select [SHUTDOWN]
Step 4 5 MIN default set

15 MIN

30 MIN

60 MIN

OFF

Questions from our customers

  1. A

    Hi, thanks for asking. This device is perfectly suitable for you as it is SCPI compatible, very light weight (1.10 lbs or 500 g), and portable.

  2. A

    Warming time of this meter is >60 min.

  3. A

    A high-performance 32-bit ARM processor is being used in this device.

Only registered users are eligible to enter questions