1865 Megohmmeter/IR Tester
USES:
• Production Testing of Insulation on
Switches, Connectors, Cables,
Printed Circuit Boards,
Transformers, Motors and other
Devices
• Insulation Properties of Natural and
Synthetic Materials such as Oils,
Plastics, Rubber or Porcelains
• Screening and Sorting of High
Resistance Components
• Incoming Inspection and Quality
Assurance Testing
• Product Design and Evaluation of
Insulation Properties
FEATURES:
• Measurement Range to 100T
ΩΩ
• Programmable Test Voltage from 1
to 1000 V DC
• 0.5% Measurement Accuracy
• Automatic Ranging
• Programmable Test Times
• High Resolution LCD Display
• Storage of Test Setup and Results
• Automatic Zeroing of Test Leads
• Limit Entry for Pass/Fail Testing
• Direct Reading of Measured
Current
• Keypad Lockout with Password
Protection
• RS-232 and I/O Interfaces
• Optional IEEE-488 Interface
Introduction
The 1865 Megohmmeter/IR tester, with digital display, is used for high accuracy measurements of insulation resistance on a wide variety of components, materials and electronic
devices. Resistance values greater than 100 teraohms can be measured with a basic accuracy of 0.5% at DC voltages up to 1000V. A programmable limit makes the unit ideal for
pass/fail testing in a production environment and is also adaptable for use in automated system applications with its optional IEEE-488 interface.
Description
Precision Measurements: The 1865 provides resistance measurement capability over a
range of 1kΩ to 100TΩ (test voltage dependent), with a basic accuracy of 0.5%. To meet
the test requirements for a wide range of devices, the test voltage is fully programmable up
to 1000V DC. Sensing the proper resistance measurement range is done automatically, thus
eliminating setup errors: and in order to eliminate lead or fixture errors, the operator can easily initiate an automatic zeroing routine of test leads.
Easy To Use: The 1865’s menu programming system, simple controls and indicators combine for efficiency of test and productivity. It’s multi-function keypad provides the operator with an easy way to program and make measurements.
Pass/Fail: Measured results are automatically compared to an operator programmed limit
for pass/fail testing. Psss/Fail indicator lights or a pass/fail output from the instruments I/O
interface give a clear indication of the measurement results.
Program Data Storage:Test setup conditions and measured results can be stored in instrument memory or on 3 1/2” disk when using the extended program storage option.
Automated Testing: For automated system applications, the 1865 includes an I/O interface
connection with remote start and pass/fail outputs. An optional IEEE-488 interface is also
available (or added later) which enables the 1865 to be used under computer control.
Current Display Mode: Besides a readout of insulation resistance in ohms, the operator can
select a display mode for reading the measured current directly.
Safety Features:The 1865 provides safety features such as current limiting, a warning indicator when high voltage is active, and safety interlock, all for protection of the operator.
Component Test Fixture: An accessory fixture is available for use with the 1865 which
accomodates a variety of component types, including radial, axial, and chip components. Its
shielded case reduces electrical noise and interfernce and includes a cover interlock switch
and remote start for maximum operator safety.
1-800-253-1230
Fax 1-978-461-4295
Intl. 1-978-461-2100
For more information about special
purchase, rent & lease options, call
For more detailed specifications, visit
www.quadtech.com
HIPOT TESTERS • LCR METERS • MEGOHMMETERS • MILLIOHMMETERS • CABLE TESTERS
High Resistance Meter
MEG
1865 Megohmmeter
Resistance Range: 7 ranges (automatic or manual)
1 x 103Ω to >1 x 1014Ω (voltage dependent)
1 x 106Ω to >1 x 1014Ω at 1000V DC
1 x 105Ω to 1 x 1013Ω at 100V DC
1 x104Ω to 1 x 1012Ω at 10V DC
1x 103Ω to 1x 1011Ω at 1V DC
Resistance
Accuracy: ± [0.45% + {(Rx/Vx)(0.0005 FS + 2pA) +
30 Ω /Rx}100%]
Rx: Measured resistance in ohms
Vx: Programmed voltage in volts
FS: Full scale current range in amperes
Voltage Range: 1 to 1000 volts programmable in two ranges
Voltage Accuracy: 1 - 100V: 1% of setting + 1V, 25mV resolution
100 - l000V: 1% of setting + 2V, 250mV
resolution
Output Voltage
Impedance: 1kΩ,± 5%
Current Limited: < 2mA
Current Measure: 1 x10
-13
- 1 x 10-3A
Current* Accuracy: 1nA- 1mA± [0.5% + (0.0005FS + 2 pA)]
100pA- 1nA±[1% + (0.0005FS + 2pA)]
1pA- 100pA± [10% + (0.0005FS + 2 pA)]
*Specified at front panel connectors
Input Impedance: 5kΩ,± 5%
Measure Limits: Pass/Fail (1 limit)
Display: • LCD graphics display
• Voltage warning indicator
• Pass/Fail indicator
Test Cycle: Manual: Charge, Measure, Discharge
Automatic: Charge: (0 - 300 sec),
Measure: (0 - 300 sec), Dwell: (0 - 300 sec),
Discharge: (0 - 300 sec)
Interfaces: Standard: RS-232,I/O Port (w/safety interlock)
Optional: IEEE-488 & Data/ Program Storage
31/2:” disk
Input Terminals: Four sheathed banana jacks, front or rear
(optional) mount
• + unknown (red) • guard (blue)
• - unknown (black) • ground (green)
Other Features: • Menu Programming • Stop on Pass
• Automatic Zeroing • Safety Interlock
• Stored Test Conditions • Keypad Lockout
• Measurement units (engineering or scientific)
• Measurement averaging (1 - 400)
Dimensions: Benchtop unit with tilt back bail
(w x h x d) :(17.5 x 5.25 x 16in)
(444.5 x 133.4 x 406.4mm)
Weight: 18 lbs (8.2kg) - Net
26 lbs (11.8kg) - Shipping
Power: 90 to 250V,
47 or 63 Hz
60W max
Environmental: In accordance with MIL-T-28800D,
Type 3, Class 5, Syle E & F
Operating: 0°C to +50°C,
Storage: -40°C to +70°C
1865-52 Component Test Fixture
Components Leaded Module: Body Size < 1inch
Accomodated: Lead Size < 1.4mm dia
SMD Module: Width: 0.5 to 10mm
Height: 0.5 to 10mm
(Diameter 0.5 to 3.0mm)
Length: 0.1 to 8mm
Alligator Clips: < 5mm diameter
Dimensions: (w x h x d): (8 x 5.5 x 9in), (203 x 140 x 230mm)
Weight: 5 lbs (2.3kg) - Net, 9 lbs (4kg) - Shipping
1865-00 Megohmmeter/IR Tester
Includes:
150073 Instruction Manual
XX Calibration Certificate Traceable to NIST
700070 AC Power Cable
800014 100kΩ Capacitor Adaptor
800015 1MΩ Capacitor Adaptor
520049 Spare T2.5A, 250V Power Line Fuse
Optional Accessories:
1865-01 IEEE Interface Option (factory installed)
1865-02 Data/Extended Program Storage Option (factory installed)
1865-03 Rear Panel Input Option (factory installed)
1865-50 Rack Mount Kit
1865-51 Shielded Lead Set
1865-52 Component Test Fixture
1865-70 IEEE Interface Option (field retrofit)
Calibration Data
Ordering Information
Product Specifications
For more detailed specifications, visit www.quadtech.com
For more information about special purchase, rent & lease options, call
1-800-253-1230 • Fax 1-978-461-4295 • Intl. 1-978-461-2100
5 Clock Tower Place, 210 East, Maynard MA 01754
P/N 030047/A5
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