Professional Manufacturer for XJM7-W Measuring Box (Outdoor Energy Measuring Box) for UK Importers


Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

Related video

"Sincerity, Innovation, Rigorousness, and Efficiency" is the persistent conception of our company for the long-term to develop together with customers for mutual reciprocity and mutual benefit for Professional Manufacturer for XJM7-W Measuring Box (Outdoor Energy Measuring Box) for UK Importers, If you are interested in any of our items, please don't hesitate to contact us and take the first step to build up a successful business relationship.


XJM7-K measuring cabinet (outdoor street lamp measurement control box) is suitable in power supply line with AC 50HZ, rated insulation voltage 660V, rated voltage 380/220v, as energy measurement equipment of residential quarters, villas energy measurement etc.

In line with GB7251.1-1997 and GB7251.3-1997 standards.

3C certificate:


CAUTION: SHOCK HAZARD!!! This unit does not put out enough current to kill you (unless you have a bad heart), but the shock WILL HURT (Minimum 10V will put out 50 milliwatts, Maximum 1090V will put out 5.45 Watts).

NOTE 1: Every time you relocate the Megger to another work location or whenever you change the Voltage setting, verify that the needle returns to Infinity and re-do the Calibration Procedure (aka Set Infinities) as necessary.

NOTE 2: If either Set Infinity or Set Infinity Highest Range cannot be attained, even after resetting the needle with the mechanical adjustment, reject the Megger. Internal calibration is required and your readings will not be accurate.


1863 and 1864 Megohmmeters Instruction Manual

Operation – Section 3


3.1.1 Ground-Link Connection.
The grounding link connected to the uninsulated, grounded, binding post can be connected from this ground terminal to the GUARD or the + UNKNOWN terminal. The ground link should be connected to the GUARD terminal if the sample to be measured is a small, separate component, or if it is a component mounted in an enclosure that should be guarded. However, if one terminal of the unknown must be grounded, then the link should tie the + UNKNOWN terminal to the instrument case.

3.1.2 Test Voltage Selection.
The TEST VOLTAGE switch(es) should be set to the desired measurement voltage. The 1863 Megohmmeter has five individual test voltages, 50, 100, 200, 250, and 500 V. The 1864 Megohmmeter has a selection of 10 to 109 V in 1-V steps or 100 to 1090 V in 10-V steps. On the 1864 the right-hand TEST VOLTAGE switch must be set to the V position for the first set of voltages and to the 0V position for the latter set of voltages.

3.1.3 Set INFINITY Adjustments.
To adjust the SET INFINITY controls, proceed as follows:
a. Turn the instrument on.
b. Set the function switch to DISCHARGE.
c. Set the multiplier dial to any range.
d. Make certain that there isn’t anything connected to the UNKNOWN terminals.
e. Adjust the SET INFINITY control for an INFINITY reading on the meter. The adjustment on the 1863 is made with a screwdriver; on the 1864 with the knob provided.
f. Set the multiplier switch to the highest range (Type 1863, 1T-100G; Type 1864, 10-1T).
g. Set the function switch to MEASURE.
h. Adjust the SET INFINITY HIGHEST RANGE on the 1863 (screwdriver adjustment) or 1864 (knob adjustment) for an INFINITY meter reading. If these adjustments cannot be set to give an on-scale reading, turn the instrument off and adjust the mechanical meter adjustment (the center screw on the meter) to give a meter reading of less than a line width beyond INFINITY. Repeat steps a through g.

3.1.4 Connection of Unknown.
Small components should be connected directly to the UNKNOWN terminals. Insulated leads (GR 274-LSR Single-Plug Patch Cord) can be connected to a nearby unknown, however, if the unknown resistance is high, leakage between the leads will cause a measurement error and changing capacitance to the high lead will cause a transient meter deflection. For such high resistance measurements, a shielded system is preferable.


3.2.1 General.
Either of two measurement procedures is used, depending on whether or not the correct resistance-multiplier range is known. If the range is not known, the search procedure (paragraph 3.2.2) should be followed. If repetitive measurements are to be made on a given range (i.e., if similar components are to be sorted) the sort procedure (paragraph 3.2.3) should be used.

3.2.2 Search Procedure.
When the approximate resistance of the sample to be measured is not nown, proceed as follows:
a. Set the multiplier switch to the lowest range.
b. Set the function switch to DISCHARGE.
c. Connect the unkown between the UNKNOWN + AND – terminals.
d. Set the function switch to MEASURE.
e. Rotate the multiplier switch cw until the meter gives a reading of less than 5.
f. The resistance of the unknown is the meter reading multiplied by the multiplier-switch indication.

3.2.3 Sort Procedure.
When the approximate resistance fo the unknown is known, proceed as follows:
a. Set the function switch to DISCHARGE.
b. Set the multiplier switch to the desired range.
c. Connect the unknown between the UNKNOWN + and – terminals.
d. Set the function switch to MEASURE.
e. The resistance of the unknown is the meter reading multiplied by the multiplier-switch indication. For go-no-go checks, it is often useful to make a limit line of the outside of the meter case with a strip of masking tape.

How to videos and tutorials on cookers and ovens.
To buy elements
How to test an element

How to replace fan oven elements

This tutorial will show you how to check your Samsung element and how to replace your Samsung cooker element.
Here are the 3 main faults to look for in your oven or cooker that is not heating
If you’re Oven is not getting hot or heating up it could be a faulty element, if the fan in the oven is running and the thermostat light is on, this will lead us to believe that the element has gone faulty. With grills the thermostat light should come on there should be heat, if not then this could be the grill element or the thermostat.
When you turn the oven on, the household electrical supply trips on the Rcd (this is the earth trip in the fuse board sometimes called the breaker tripping) your fan oven element has gone to earth and needs replacing.
Note: Your oven will not work until the clock/timer has been re-set after replacing an oven element or tripping the electrical supply. Consult your Samsungmanual.

Related Products

WhatsApp Online Chat !