Showing results: 376 - 390 of 2660 items found.
-
National Technical Systems
Surface Insulation Resistance (SIR), as defined by IPC, is the electrical resistance of an insulating material between a pair of contacts, conductors, or grounding devices that is determined under specified environmental and electrical conditions.In respect to the world of printed circuit boards (PCBs) and printed circuit assemblies (PCAs), SIR testing—also commonly referred to as Temperature Humidity Bias (THB) testing—is used to evaluate a product’s or a process’ ability to resist “failure” by means of current leakage or an electrical short (i.e., dendritic growth). SIR testing is typically performed under elevated temperature and humidity conditions—such as 85°C/85% RH and 40°C/90%—with periodic insulation resistance (IR) measurements obtained.
-
TWR-H Series -
IBEKO Power AB
Handheld TWR-H device is DV Power single-phase instrument designed for measuring transformer winding resistance and turns ratio.The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output up to 2 A DC and is used for injecting current to the transformer’s high voltage winding. The second DC source can output up to 10 A DC and is used for testing the transformer’s low voltage winding. This is especially useful when measuring winding resistance of distribution transformers. These transformers have large turns ratio and therefore a big difference between resistances of high voltage and low voltage windings. Upon the winding resistance test, it is also possible to demagnetize the transformer core. The demagnetization process is completely automatic and safe.Together with the turns ratio, the instrument also measures excitation current and phase shift. This enables detecting transformer core or winding turns failures which cannot be spotted by measuring turns ratio only. The instrument can output test voltage up to 40 V AC for this test, but it can also output a very low test voltage of 1 V AC which is necessary for turns ratio verification of the majority of current transformers.TWR-H is powered by an internal Li-Ion battery. Up to 100 tests can be performed with a fully charged battery.
-
1620 ER -
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Measures earth resistance in three ranges : 40Ω, 400Ω, 4kΩ.● Capable of measuring earth voltage.● 3 ¾ digit (4000 counts).● LCD backlight display.● 2mA measuring current permits the testing of earth resistance without tripping earth leakage current breakers in the circuit under test.● Data hold function.● Relative function.● Auto power-off function.● Low battery indication.● Calibration performed with supplied test leads.
-
MR -
RARA Electronics Corporation
*Low Resistance / TCR / Inductance*Excellent long term stability*RoHS compliant and halogen free*Lead free*High precision current sensing and voltage division
-
MFF -
RARA Electronics Corporation
*Low Resistance / TCR / EMF / Inductance*Excellent long term stabilityRoHS compliant and halogen free.*Lead free.*High precision current sensing and voltage division.
-
MFR (Metal foil) -
RARA Electronics Corporation
*Low Resistance / TCR / EMF 9only FOR MnCu) / Inductance*Excellent long term stability*RoHS compliant and halogen free.*Lead free.* High precision current sensing and voltage division.
-
RTX -
RARA Electronics Corporation
This specification is applicable to lead and halogen free RTX series low resistance metal film chip resistors. Lead free products mean lead free termination meets RoHS requirement.
-
ST-1520 -
Standard Electric Works Co., Ltd
● Capable of measuring earth resistance and earth voltage.● 2mA measuring current permits the testing of earth resistance without tripping earth leakage current breakers in the circuit under test.● Auto power off function.● The timer operates automatically for about three to five minutes when the "PUSH BUTTON SWITCH" and "TIMER ON BUTTON" are pressed together. This will keep test "ON" for the duration of the timer.● Timer for test function (count 3-5 minutes).● Battery operated.● Data hold function.● Small and light weight.● Calibration performed with supplied test leads.
-
Neutronics Manufacturing Co.
Sonel (Poland) Digital Insulation Resistance Tester, Range : 0-5kV/5TeraOhms, Battery-cum-Mains Operated, Voltage increment in Steps of 50v & 100V upto 5kV, Memory storage upto 11880 records, Data Transfer to PC/Laptop by USB Port, Free Software, PI & DAR Measurements.
-
ST-1505 -
Standard Electric Works Co., Ltd
● High quality Taut Band movement.● Capable of measuring earth resistance and earth voltage.● The timer operates automatically for about three to five minutes when the “PUSH BUTTON SWITCH” and “TIMER ON BUTTON” are pressed together. ● This will keep test “ON” for the duration of the timer.● Battery check function.● Calibration performed with supplied test leads.
-
B2980A Series -
Keysight Technologies
Both the picoammeters and electrometers provide a world-best performance of 0.01 fA (0.01 x 10-15 A) current measurement resolution. In addition, the electrometers can measure resistance up to 10 P (10 x 1015 ), which is also a best-in-class specification. Finally, since AC power line noise can be difficult to eliminate when making low-level measurements, both the picoammeters and electrometers are available in battery powered versions.
-
MLIT-1 -
MULTI MEASURING INSTRUMENTS Co., Ltd.
*Easy and convenient live line insulation measurements for servo motor,inverter motor and power line.・More than 0.1MΩ for power line.・More than 10MΩ for servo motor and equipment.
-
EC-80 -
NAPSON Corp.
*Easy operation and compact design*Auto-measurement start by inserting a wafer under the probe*Easy set up to measurement condition by JOG dial*5 types of model for each measuring range
-
GLP1-g -
Schleich Gmbh
GLP1-g testers are ideally suited for use in production, laboratory, test field, quality management, automation and many more applications. Thanks to the individual combination of functions you are able to reach your aims quickly, reliably and cost-effectively.
-
4236 ER -
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Earth resistivity (ρ) test.● Earth testing at 20Ω, 200Ω, 2kΩ.● Earth voltage measuring : 0-300V AC.● Automatic C spike check.● Automatic P spike check.● 2-Wire test, 3-Wire test, 4-Wire test.● LCM display.● Auto ranging.● Auto power OFF.● Data hold.● 200 measurement results can be saved in the memory and recalled on the display.● Interval between auxiliary earth spikes is 1.0~50.0m.● Optical USB to RS-232 data transmission.● The stored data can be transferred to a PC.● 2 optical LEDs are built-in for data transfer.