Best-in-class Megohmmeter designed for unparalleled accuracy in measuring high resistance and IR across a diverse range of components, materials, harnesses, connectors and resistance standards for production and calibration applications
Wide Measurement Range: Accurately measure resistance from 1 kΩ to 100 TΩ, with auto-ranging capabilities to ensure precise readings across the spectrum.
High Accuracy: Achieve a basic measurement accuracy of 0.3%, providing confidence in your test results.
Programmable Test Voltage: Customize test voltages from 1 to 1000 V DC to meet specific testing requirements.
Intuitive User Interface: :Leading to low training costs. The large color touchscreen, combined with an intuitive graphical interface, simplifies operation, allowing users to program and view test parameters and results effortlessly.
The 1888 is the Megohmmeter/High Resistance Meter for today's most challenging applications
The 1888 is the Megohmmeter/High Resistance Meter for today's most challenging applications
- Outstanding replacement for the 1865 Plus with updated and improved features 1888 vs 1865 Plus
- Easy to use menu with breadcrumb design allows for quick adoption and minimal training More on Menus
- Color graphical touchscreen shows all measurement parameters on one screen and allows for display of tables and charts.
- The Chart display allows the user to visualize the data in a graphical representation over the measurement time. More on Graphical Display
- Fully programmable measurement sequence; set voltage, charge time, measurement time and press start. It is that easy.
- Direct reading of volume and surface resistivity, when used with the 1888-11 or other resistivity cells, simplifies use. More on Resistivity
- Highly competitive specifications for applications covering 10 MΩ to greater than 100 TΩ
- Ideal for calibration of IET's SRC or VRS resistance standards at voltage up to 1 kVdc
- Proven design and remote interfaces make integration into production testing seamless.
The 1888 can be used in manual applications or used in automated system applications with the standard; GPIB, Ethernet or USB interfaces.
Precision Measurements: The IET Labs 1888 Megohmmeter/High Resistance Meter provides resistance measurement capability from 1 kΩ to greater than 100 TΩ (test voltage dependent) with a basic accuracy of 0.3%*. To meet test requirements for a wide range of devices, the test voltage is fully programmable up to 1000 Vdc. Sensing the proper current measurement range is done automatically to eliminate setup errors. The operator can easily initiate an automatic zeroing routine of test leads to eliminate lead or fixture errors,.
Easy to use: The 1888's graphical user-interface is significantly improved, simple controls and indicators combine for efficiency of testing and productivity. The 1888's multi-function keypad provides the operator with an easy way to program and make measurements or all functions are available directly on the touch-screen.
1888 Display Types The 1888 Megohmmeter takes full advantage of the graphical color touch-screen display with normal, chart and graph displays. The normal display shows the measured test voltage, current and resistance along with setup parameters. The final resistance or resistivity value shown can be an average of the final measurements. There is also a zero indication shown on the display if the zero has been performed since the 1888 was turned on.
The user can cycle through the chart, graph and numeric displays at anytime before, during or after the measurement making the 1888 extremely flexible for calibration and R&D applications.
1888 Graphical Display The Graph Display allows the user to see a graphical representation of the resistance measurement over time. This allows for better understanding of when the measurement has stabilized or characteristics of the device being tested. This allows for reduced test time and better understanding of the material or device under test.
1888 Tabular DisplayThe Chart Display allows the user to see a tabular representation of the resistance measurement over time. This the user to look at specific values taken during the measurement time and each row shows: time, resistance, voltage and current. The user can move up and down through the data. This data is shown for each second of the measurement time. This allows user to look for any anonymities during testing and for review of the applied voltage.
1888 Resistivity The 1888 normally shows the measured resistance, current and voltage. The user can also select either volume or surface resistivity to be displayed rather than resistance.
The user can enter the specific volume and surface resistivity coefficients for the the 1888-11 Volume/Surface Resistivity Cell or another cell.
The correct units are displayed for resistivity in either Ω cm for volume resistivity or Ω/sq for surface resistivity. The top left hand corner of the display also shows if Resistance or which Resistivity is being displayed.The volume and surface resistivity calculations are based upon cell constants and material thickness which can all be entered from the I/O Settings Menu.Being able to display volume and surface resistivity measurements when combined with being able to save setups results in reduced measurement time and eliminating costly mistakes. As an example just configure the 1888 for volume resistivity with your required voltage, measurement time and cell constants and save this to memory as "Volume". The operator just has to recall "Volume" and start performing measurements.
1888 MenusThe 1888 simplifies setup using straight forward menus with breadcrumbs so the user always knows where they are in the menu system. Pressing the Menu button from the Measurement Display shows 4 selections: Measurement Settings, I/O Settings, Utilities and About. The Measurement Settings menu contains all parameters such as; voltage, charge time, and measurement time all on one simple menu. There are no hidden menus or confusing user interface to navigate.
The IO Settings menu contains display type, cell constants, GPIB and ethernet settings.
The Utilities menu contains save and recall of setups, time and date, along with zero.
Program Storage: Test setup conditions can be stored in internal memory for quick recall. A default setup can also be saved so the 1888 powers-up in exactly the same condition each time.
The user can save setups for common tests performed in the laboratory or production. The setups are easy to recall and use text names to make it easier to identify which one to recall for the user.
Automated Testing: For automated system applications, the 1888 Megohmmeter/High Resistance Meter includes; GPIB, USB and ethernet interfaces. This allows the automation for both configuration of the instrument as well as data collection.
Safety Features: The 1888 Megohmmeter/High Resistance Meter 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 1888 Megohmmeter/High Resistance Meter which accommodates a variety of component types, including radial, axial and chip components. Its shielded case reduces electrical noise and interference and includes a cover interlock switch and remote start for maximum operator safety.
Why Buy?
- Volume and Surface Resistivity Measurements in conjunction with 1888-11
- For precision high resistance measurements over a wide voltage range
- For automated testing in a system
Product Package
The following accessories come standard with the megohmmeter:- 1888 Instruction Manual
- 4200-0300 AC Power Cable
- 1888-01 Triaxial to alligator clip leads
- 1888-02 BNC-m to alligator clip lead
- 1888-03 Interlock Connector
- Calibration Certificate Traceable to SI
1888+ Megohmmeter High Resistance Meter Basic Specifications
(Full specifications can be found on datasheet)
Resistance range:
1x106 to 1x1014 Ω at 1000 Vdc
1x105 to 1x1013 Ω at 100 Vdc
1x104 to 1x1012 Ω at 10 Vdc
1x103 to 1x1011 Ω at 1 Vdc
No of ranges: 7 manually settable plus auto-ranging
Voltage range: 1 to 1,000 volts, programmable in two ranges
Voltage accuracy at front panel connectors:
1 - 100 V: 1% of setting + 1% Resolution: 25 mV
100 - 1,000 V: 1% of setting + 2 % Resolution: 250 mV
Resistance accuracy: ±[0.25% +{(RX/VX)(0.0005FS + 0.2pA) + 30Ω/RX}100%]:
RX = Measured resistance in ohms
VX = Programmed voltage in volts
FS = Full scale current range in amperes
Measuring current: 0.1 pA (10-13 A) to 1 mA (10-3 A)
Current accuracy at front panel connectors:
1 nA to 1 mA ±[0.25% + (0.0005 FS + 0.2 pA)]
100 pA to 1 nA ±[0.5% + (0.0005 FS + 0.2 pA)]
1 pA to 100 pA ±[5% + (0.0005 FS + 0.2 pA)]
Short-circuit current:<2 mA
Input impedance: 5 kΩ, ±5%
Output voltage impedance: 1 kΩ, ±5%
Measurement limits: Pass/Fail (1 limit)
Interfaces:Remote Control: USB: USB B female connector rear panel IEEE: GPIB standard 24 pin connector, conforms to IEEE- 488.2; SCPI 1994.0 command set; Hardware or software programmable addressing range of 1 to 30. Ethernet: IEEE 802.3 compliant, Speeds 10 BaseT (10 Mb/s) and 100 BaseT (100 Mb/s), IP Address Static or DHCP, Factory setting 192.168.0.254 static Dimensions: Bench model: 43 cm W x 8.9 cm H x 33 cm D (17" x 3.5" x 13") in front of panel: 3.8 cm (1.5"). Weight: Bench model: 4.0 kg (9 lb); Rack model: 4.5 kg (10 lb); weight specifications are nominal.Input terminals: Industry standard triaxial detector Input and BNC voltage output.
