MIT320-EN Megger, MIT320-EN Datasheet - Page 2

• Manufacturer Part Number: MIT320-EN
• Description: Insulation Testers / Megohmmeters A/D Hand-Held Tester 250 500 & 1000V
• Manufacturer: Megger

Specifications of MIT320-EN

• Resistance: 1 MOhms
• Current Rating: 1.5 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

In addition the range meets the requirements of IEC
61010-1 for safe connection to a 440 V Installation
Category III supply (600 V Phase to Earth).
The MIT330 additionally offers the facility to save test
results to internal memory. Over 1000 result can be saved
on site, and downloaded to a computer when convenient.
Data is stored in non-volatile memory, being retained
when the instrument is switched off or batteries are
exhausted.
A Job reference number can be selected for a range of
results, allowing separate locations to be tested with the
same tester and easily separated when downloaded.
A memory bar graph acts as a ‘Fuel Gauge’ showing how
much memory has been used.
Test results are downloaded to CSV (Coma Separated
Variable) spreadsheets, and can be imported into
Microsoft Excel. If certificates or reports are required, the
results can be downloaded directly into Megger
Powersuite Professional with a range of features for
creating professionally finished documentation.
APPLICATIONS
The MIT300 series has applications in all aspects of
domestic, commercial and industrial electrical contracting,
building maintenance, testing, inspection and servicing.
Combining both Insulation testing and continuity testing,
each instrument caters for all aspects of fixed wiring
installations.
Further applications can be found in panel building,
testing of motors, generators, switchgear and power tools,
street lighting and low volume manufacturing
environments etc.
The MIT300 range is supplied with a full 3 year warranty.
SPECIFICATIONS
Insulation ranges
Nominal Test Voltage
MIT310, 310A, 320, 330
MIT300
Measuring Range
All instruments
Short Circuit Current
Test Current on Load
Accuracy (at 20° C)
MIT300, 310, 320, 330
MIT310A
Continuity ranges
Measuring Range:
Open Circuit Voltage:
Short Circuit Current:
MIT300, 310, 320, 330
MIT310A
1000 V, 500 V, 250 V (d.c.)
500 V, 250 V (d.c.)
1.5 mA nominal
1 mA at min. pass values of
insulation (as specified in BS7671,
HD 384 and IEC 364)
±3%, ±2 digits up to 10 MΩ,
±5% up to 100 MΩ, ±30% up to
full scale
<2.5% of scale length (or 30% of
reading 200 kΩ to 10 MΩ)
0.01 Ω - 99.9 Ω (0 -50 Ω on
analog scale)
205 mA +10 mA –5 mA
200 - 250 mA
10 kΩ - 999 MΩ on all ranges
5 V ±1 V
Terminal Characteristics
Accuracy (at 20° C)
MIT300, 310, 320,330
MIT310A
Zero Offset Adjust:
MIT300, 310,320, 330
MIT310A
Continuity Buzzer
MIT300, 310
MIT320, 330
MIT310A
MIT300, 310, 320, 330
MIT310A
Resistance range MIT320/330
(can be used for diode testing)
Measuring Range:
Open Circuit Voltage:
Short Circuit Current:
Accuracy (at 20° C):
Measuring Range (MIT310A) 0 - 2kΩ (refer to continuity)
Voltage range
Measuring Range:
Accuracy (at 20° C)
MIT300, 310, 320, 330
MIT310A
Temperature coefficient:
Default voltmeter
All modes except off
MIT310, 320, 330
MIT300
MIT310A
Test inhibit:
If more than 50 volts is detected, testing will be inhibited.
AutoPower Down (MIT310, 320, 330)
Auto power down operates after 10 minutes if left in standby
mode.
Temperature and humidity
Operating Range:
Operating Humidity:
Storage Range:
Test Result Storage (1000 results)
Job Number
Distribution Board no.
Circuits
Phases
Last recorded result may be recalled to the display.
All data can be downloaded to a PC using Download Manager
(supplied) or Megger Powersuite Professional of Windows
software
Insulation and Continuity Testers
±3% ±2 digits
±2.5% of scale length (or 30% of
reading 0.2 Ω to 2 kΩ)
0 - 9 Ω
0 - 0.5 Ω
Operates at < 5 Ω
Adjustable 1 Ω to 20 Ω
Operates at < 5 Ω
Response time <20 ms
Response time <100 mS
10 Ω - 1 MΩ
5 V
1.5 mA
±5% ±2 digits up to 100 kΩ
0 - 600 V a.c. (50/60 Hz) or d.c.
d.c. or a.c. (50/60 Hz):
±1%, ±2 digits
±2.5% of scale length for 50/60Hz
<0.1% per °C on all ranges.
>25 V a.c. or d.c. is applied display
will operate as a voltmeter.
Beeps and flash ‘V’ on the display
All modes including OFF
14°F to 140°F (-10°C to +60°C)
93% R.H. at +40°C max.
-13°F to +158°F (-25°C to +70°C)
255 locations
99 locations
99 locations
P1, P2, P3
MIT300 Series