Enviro Test Construct Milliohm Meter With Auto Shutdown (Internal, Manual Trigger)

Enviro Test Construct Milliohm Meter With Auto Shutdown (Internal, Manual Trigger)

This Handheld Milliohm Meter with Auto shutdown adopts high-performance 32-bit ARM processor which works with high accuracy for a wide measurement range from 10 uΏ to 20 MΏ.

SKU: ETC00YM00ZY Category:

Overview

Enviro Test Construct 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

ParametersDC Resistance
AdjustmentShort circuit zero adjust for each range
ComparatorBuilt-in sorting record, GD/NG sorting result display
Measurement CurrentI – Max : < 1A

Current mode : high current, low current

Measurement Range10 uΏ – 20 MΏ
Accuracy0.05 %
TriggerInternal, manual and remote
Test Lead
Temperature CompensationAccuracy : 0.02 C

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

Interface
Max Reading2000 digits
Result DisplayABS, PER, SEQ compare way
Speed30 times per second, 15 times per second, 3 times per second
Weight1.10 lbs (500 g)
Dimensions8.29 in x 5.12 in x 1.49 in (210.76 mm (Length)*130.23 mm (Width)*37.88 mm (Height))
Humidity ≤ 65 % RH
CorrectionShort-circuit clear zone
Warming Time > 60 min
Adjustment Time 12 months
Working EnvironmentNormal 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
SpeedFast 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
InternalInternal Trigger
ManualPress [Enter] once, the instrument runs a test cycle
RemoteReceived a RS-232 trigger command, the instrument runs a test cycle

 [RANGE]

Instrument has three range modes:

RangeProsCons
AutoAutomatically select the best according to impedance range is automatically setVery convenientTest speed is slower than manual ranging
ManualThe instrument will always use the user specified rangeHighest speedSet the range previously
NominalAutomatically select the best range according to nominal valueBest mode in sortingOnly availabe in sorting mode

Measurement Range

Range Measurement Range
920 MΏ2 MΏ to 20 MΏ
82 MΏ200 KΏ to 2 MΏ
7200 KΏ200 KΏ to 2 KΏ
620 KΏ20 KΏ to 200KΏ
52 KΏ2 KΏ to 20 KΏ
4200 Ώ200Ώ to 20 KΏ
320 Ώ20 Ώ to 200 Ώ
22 Ώ2 Ώ to 20 Ώ
1200 MΏ20 MΏ to 200 MΏ
020 MΏ0  to 20 MΏ

Current (Mode)

Instrument includes two current modes:

High current and low current modes

RangeHigh Current modeLow current mode
0100 mA100 mA
1100 mA100 mA
2100 mA10 mA
310 mA1 mA
41 mA100 uA
51 mA100 uA
6100 uA10 uA
710 uA10 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 1Press  <Meas Display> page
Step 2Select (Comp setup) to enter <Comp setup> page
Step 3Use cursor key to select [ Mode]
Step 4ABS  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 1Press [MEAS] to enter <MEAS DISPLAY> page
Step 2Select [COMP SETUP] to enter <COMP SETUP> page.
Step 3Use cursor key to select [NOM]
Step 4Input 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 1Press [Meas] key to enter measurement range
Step 2Use the cursor key to select [SPEED] field
Step 3OFFTurn beep off
GDBeep while pass
NGBeep while fail

Icons on <MEAS Display>

IconDescription
 Powered by Li battery
 Powered by external power supply
 USB-Disk is available
HHold 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 1Press [SYSTEM] bottom soft key to enter <SYSTEM CONFIG> page
Step 2Use the cursor key to select [BAUD] field
Step 31200For the communication, converter opt with coupler isolation
9600
38400
57600
115200Best for communication with PC

<SYSTEM INFORMATION>

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

AC Resistance Range:

RangeMax. ReadingResolutionFASTMEDSLOWTest Current
020 mΩ22.00 mΩ0.01 mΩ0.8% ± 50.6% ± 30.5% ± 210 mA
1200 mΩ220.0 mΩ0.1 mΩ0.8% ± 40.6% ± 30.5% ± 21 mA
22 Ω2.200 Ω1 mΩ0.8% ± 40.6% ± 30.5% ± 20.1 mA
320 Ω22.00 Ω10 mΩ0.8% ± 40.6% ± 30.5% ± 210 µA
4200 Ω220.0 Ω100 mΩ0.8% ± 40.6% ± 30.5% ± 25 µA
52 kΩ2.200 kΩ1 Ω0.8% ± 40.6% ± 30.5% ± 22 µA

Open-circuit Voltage: < 30 mVrms

DC Voltage Range:

RangeMax. ReadingResolutionFASTMEDSLOW
15.0000 V5.0000 V0.0002 V0.5% ± 40.5% ± 20.1% ± 5
250.000 V50.000 V0.002 V0.5% ± 40.5% ± 30.1% ± 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 1Press [Setup] to enter <SETUP DISPLAY>page
Step 2Select [TEMP CALIBRATE]
Step 3Select [OK]
Step 4Input 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 1Press [Setup] to enter <SETUP DISPLAY>page
Step 2Select [TEMP RESET]
Step 3Press [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 1Press [MEAS] or [Setup] to enter main page
Step 2Press bottom soft key [SYSTEM] to enter <SYSTEM CONFIG>
Step 3Use cursor keys to select[Language ]

[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 1Press [MEAS] or [Setup] to enter main page
Step 2Press bottom soft key [SYSTEM] to enter <SYSTEM CONFIG>
Step 3Use cursor key to select[ACCOUNT]
Step 4Except <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 1Press [MEAS] or [Setup] to enter main page
Step 2Press bottom soft key [SYSTEM] to enter <SYSTEM CONFIG>
Step 3Use cursor key to select [PASSWORD]
Step 4No 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 1Press [MEAS] or [SETUP] to enter main page
Step 2Press bottom soft key [SYSTEM] to enter<SYSTEM CONFIG>
Step 3Use cursor keys to select [DATE]
Step 4YEAR INCR+

YEAR DECR-

MONTH INCR+

Procedure to set time:

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

Procedure to set background brightness:

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

[SHUTDOWN]

Procedure to set auto power off:

Step 1Press [MEAS] or [SETUP] to enter main page
Step 2Press bottom soft key [SYSTEM] to enter<SYSTEM CONFIG>
Step 3Use cursor keys to select [SHUTDOWN]
Step 45 MIN default set

15 MIN

30 MIN

60 MIN

OFF

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