This device is designed to derive the resistance value when plastic manhole is buried underground and exposed to the pressure of underground water.
JJRBT-1 series buckling resistance tester is used to simulate the conditions when manhole is buried underground and check its resistance to the force of underground water.
Seal and vaccumize the sample between 200C~250C, keep the internal negative pressure stable for more than 1000h, measure the deformation of the slow channel side and bottom, then extrapolate the deformation occurred after 50 years by the least square method.
Features: Widely applied in ground resistance measurement, loop resistance measurement With optional function of RS232 interface data upload No need to disconnect the ground wire from the ground net Without auxiliary electrode High accuracy and resolution With data memory Automatic power off Specifications: Clamp size: 65 x 32mm Resistance range: 0.01 to 1,200ohm; With automatic shifting Resistance resolution: 0.001ohm; Data memory: 99 sets Alarm setting: 1 to 199ohm; and buzzer alarm Quick boot: in 0.5 second With lower consumption.
Clamp on ground resistance tester ETCR 2000C *Accurate ground resistance measurement from 0.01to 1000Ohms *current measurement including leakage current *Accurate readings regardless of power quality in 1 seconds *Simple and easy to use, no test leads or auxiliary electrodes necessary *Data logging capability - 50 records *Individual data point recording *User selectable audible alarms *Auto power off *Low battery indicator *Large LCD display Ground Resistance: 0.010 - 0.099 Ohms (¿¬+ 1% ¿¬+ 0.01 Ohms, resolution 0.001 Ohms) Ground Resistance: 0.10 - 0.99 Ohms (¿¬+ 1% ¿¬+ 0.01 Ohms, resolution 0.01 Ohms) Ground Resistance: 1.0~49.9 Ohms (¿¬+ 1.5% ¿¬+ 0.1 Ohms, resolution 0.1 Ohms) Ground Resistance: 50.0~99.5 Ohms (¿¬+ 2% ¿¬+ 0.5 Ohms, resolution 0.5 Ohms) Ground Resistance: 100~199 Ohms (¿¬+ 3% ¿¬+ 1 Ohms, resolution 1 Ohms) Ground Resistance: 200~395 Ohms (¿¬+ 6% ¿¬+ 5 Ohms, resolution 5 Ohms) Ground Resistance: 400~590 Ohms (¿¬+ 10% ¿¬+ 10 Ohms, resolution 10 Ohms) Ground Resistance: 600~1000 Ohms (¿¬+ 20% ¿¬+ 20 Ohms, resolution 20 Ohms) Ground Leakage Current: 0.00~299 mA (¿¬+ 5% ¿¬+2 mA) resolution 1 MA Ground Leakage Current: 100~299 mA (¿¬+ 5% ¿¬+5 mA) resolution 1 mA Ground Leakage Current: 0.30~2.99 A (¿¬+ 5% ¿¬+0.03 mA) resolution 10 mA Ground Leakage Current: 0.30~2.99 A (¿¬+ 5% ¿¬+0.03 mA) resolution 10 mA Ground Leakage Current: 10.00~20.00 A (¿¬+ 5% ¿¬+0.5 mA) resolution 10 mA.
Earth Resistance Tester: Model: ETCR2100+(basal) Category: Ground Resistance tester Earth Resistance Tester (ETCR2100+)-Illustration: ETCR 2100+ of Pincers Earth Tester, in the measurement of a grounding system with loop current, does not require breaking down the grounding wire, and need no auxiliary electrode. It is safe, fast and simple in use. 1.Wider range: 0.01Ñ+-1200Ñ+ 2.Stored data: 99 groups. 3.Resistance Resolution: 0.01Ñ+ 4.Size of Jaw: ¬¬32ú¿mmú¬ 5. Sound and light alarm, "beep - beep - beep -" alarm sound. 6. Breakthrough in self-test the boot a long time to wait, start immediately into the test. 7. Breakthrough relay self-test mode, using the most advanced processing algorithms and digital integration technology, a fully intelligent. 8. Break the old product to heavy issues, more in line with characteristics of handheld devices. 9. The new design, panel 6 button operation, the performance through. 10. Lower power consumption: Maximum operating current not exceeding 50mA. 260*90*66(MM)
MEWOI3100B+ Clamp Earth Resistance Tester is widely applied in ground resistance measurement, loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil field, architecture and industrial electrical equipment, etc. When measuring ground system with loop, there is no need to disconnect the ground wire without auxiliary electrode, which means safer and faster. MEWOI3100B+ Clamp Earth Resistance Tester can measure the ground fault which can not be measured by traditional method, can apply in the occasion where traditional methods are unworkable; MEWOI3100B+ Clamp Earth Resistance Tester measures the integrated value of ground resistance and resistance lead. Main Features 1Measuring Range0.01-200Ω2Stored Data99 sets3Clamp Size32mm4Power Consumption:Maximum 50mA Model No.: MEWOI3100B+ Name: MEWOI3100B+-0.01Ω-200Ω Earth Resistance Clamp meter/tester
Main features:1. 2/3/4-wires measurement of earth resistance, soil resistivity, earth voltage, , ac voltage;, 2.Measurement range: earth resistance: 0.00î©-30.00kî©; 0~600v, soil, resistivity: 0.00î©m-9000kî©m; 3. Data upload: rs232 interface, 4.Date storage:300 sets, model no:mewoi4000c, name:mewoi4000c-earth ground resistance/soil resistivity tester, electrode distance range:can be set 1m-100m, low power consumption:standby:1. About 20ma (backlight shut off), 2.Boot and with backlight: about 45ma, (25ma without backlight), 3.Measurement: about 100ma, (backlight shut off)
Main Features: 1,Equipotential bonding resistance Test,2,low value resistance test, 3,DC resistance test Model No:MEWOI4700 Name: MEWOI4700 Equipotential&DC low resistance testerMain Function:Test of equipotential bonding resistance between functional metal components, low value resistance test, DC resistance test, resistance test of connecting conductor in ground network ground pole, contact resistance, riveting resistance test, wire length test, etc. Test Wires:2 red and 2 black wires, each 5m
Product description Earth ground resistance tester is a high-precision testing instrument used in various fields such as substations to test grounding resistance and related parameters.The instrument is of an integrated structure, with a built-in frequency conversion power supply module, and the output power supply is continuously variable in frequency. The frequency can be changed to 45Hz or 55Hz, the high-speed processor core is built in, and the high-end digital filtering technology is adopted, thus effectively avoiding the interference of power frequency electric field to the test and fundamentally solving the difficult problem of accurate measurement under strong electric field interference. Technical index 1 Conditions of use 1 540 RH 80% 2 Anti-interference principle Frequency conversion method 3 Electric source AC 220V 10% allowed generator 4 Measure output current 1A 5A Adjustable 5 Measure output voltage 0V 100V 6 Test power frequency 45, 50, 55, 60, 65HZ single frequency 45 55, 55 65 47.5 52.5HZ Automatic Dual Frequency 7 Output rating 500W 8 Distinguishing rate Grounding impedance 0.0001 Impedance angle 0.0001 9 Precision Grounding impedance 1% reading 0.002 Impedance angle 1% reading 0.02 10 Resistance measurement range 0.001 5 11 Exterior dimensions 370 295 W 225 H 12 Memory size 100 groups support U disk data storage 13 Weight Main engine 13 Kg, ground pile 7 Kg
Sxzr-10a is single phase dc winding resistance tester which designed specifically to measure dc resistance values of transformer windings and any dc resistance of an inductive device. , controlled by high speed scm, easy to use. , selectable current positions, large measurement range, suitable for the dc resistance values measuring of large-medium transformers. , full protection functions to ensure safety and availability. , auto discharging and discharging indicator. , intelligent power management technology, small consumption, less heating. , 320x240 true color lcd screen. , built-in thermal printer. , perpetual calendar, 1000 groups data storage no lost even power failure. , rs232 and usb interface, easy communicate with pc and u disk.
Car front seat organizer. It is specifically used to store documents, portfolios, books, laptops, marker pens, signature pens and other work materials that you need to work at any time. Allows you to easily find the documents you need while keeping the environment in the car neat and tidy. Large capacity front seat car organizer width 33.5x43 cm height, which can accommodate notebooks, 14 inch laptop, 1 marker, four signature pens, hand sanitizer, 2 umbrellas or water glasses and other commonly used items. Both sides are equipped with buckles to expand the capacity, allowing you to flexibly adjust the capacity of the storage bag to the number of items stored. Separate laptop compartment. The front seat organizer of the car has a separate laptop compartment filled with EPE material of sufficient thickness. To prevent scratching of the computer, the inner compartment is made of soft suede material. High-quality workmanship. The storage bag for the front seat is made of high-quality 600D polyester, which is dustproof, wear-resistant and shiny. An X-shaped reinforcement sewing method is used on the handle connection, which has a strong support force and avoids tearing due to continuous winding. We use high quality thick metal zipper, smooth and not easy to damage. Double fastening straps always remain stable. To prevent the storage bag from shaking or dropping items while driving, the storage bag is equipped with two adjustable fastening straps. Installation method: Step 1: Simply install the short belt on the headrest, Step 2: Wrap the long belt around the back of the car seat to attach it.
