Ammeter M42300, voltmeter M42300, milliampermetr M42300, kiloammeter M42300, kilovoltmeter M42300 are designed to measure current and voltage in DC electrical circuits.

Devices can measure currents in range from 10mA to 20A and voltages from 25mV to 750V at direct turn on.

For current and voltage measurements, that excess limits, external shunt and additional resistor are applied (ordered separately).

Mean time between failure of device M42300 (m), microammeter M42300 - 55000 hours, devices M42300 - 92250 hours;
Devices average life service is 12 years;

Design concept of device ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 cases provides protection degree in front panel IP50, or IP54, for current-carrying parts - IP00.

Devices ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 can withstand long current or voltage overload, equal to 120% of the higher measurement limit range for 2 hours;

Device is filled with high-quality plastic case that can be used in hard conditions.

Calibrated wire, connecting device with shunts, are supplied (at customer's request). It is possible to manufacture devices with increased protection on request.

Devices ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 DC can be produced with zero mark at the beginning or at middle of scale;

Devices scale can be implemented in any physical measurement units, with special markings, inscriptions and so on according to the customer’s request.

Normal position of  ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 - vertical or horizontal. Manufacture of device with other measurement ranges is possible on request.

Technical characteristics of devices ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300:
Dimensions – 80x80mm, cutout in panel d – 77.5 mm;
Weight - 0.2 kg;
Other dimensions of  devices ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 shown in figure 1;
where A - 80mm, B - 45mm, C - 12mm, D – 73.7 mm, D1 – 77.5 mm, d – 3.4 mm, E - 68mm;

Accuracy class - 1.5; 2.5;
    Measuring ranges:

      - 5mA; 10mA; 15mA; 20mA; 30mA; 50mA; 100mA; 150mA; 300mA; 500mA; 600mA; 3/30mA; 3/50mA; 5/50mA; 1A; 2A; 3A; 5A; 10A; 15A (devices ammeter M42300, milliammeter M42300, kiloammeter M42300 way of turn on - directly);

      - 15A; 20A; 30A; 50A; 75A; 100A; 150A; 200A; 300A; 500A; 750A; 1000A;1500A;2000A; 4000A; 6000A (way of turn on with external shunt of 75 mV);

      - 0.025 V; 0.050 V; 0.075 V; 2V; 3V; 7.5 V; 10V; 15V; 20V; 30V; 50V; 75V; 100V; 150V; 250V; 300V; 500V; 600V (way of turn on of voltmeter M42300, kilovoltmeter M42300 - directly);

      - 150/1500V; 15/150/1500V, 1000V, 1500V, 3000V (way of turn on - with a separate calibrated additional resistance P4201 with nominal current of 5 mA).

    Measurement range, voltage or current full deflection and way of turn on devices ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 are shown in table 1;
 
     Table 1: Measurements range, voltage or current full deflection and way to turn on devices ammeter M42300, voltmeter M42300, milliampermetr M42300, kiloampermetr M42300, kilovoltmeter M42300

Acceptable basic error limits of devices ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 is:
      - ± 1.5% - for devices of accuracy class 1.5;
      - ± 2.5% - for devices of accuracy class 2.5;
without taking into account errors of individual external shunts and additional resistances;
     Normalizing values in determining of errors are equal to:
      - The highest measured range - for devices ammeter M42300, voltmeter M42300, milliammeter M42300,  kiloammeter M42300,  kilovoltmeter M42300 with zero mark on edge of the measuring range;
      - sum of the highest measurement  range modules limits - for units with zero mark within the edge of the measuring range;
    Acceptable variations limit in devices: ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 measurements are equal to a half of acceptable basic error limit;   

Indicator deviation from zero scale mark after 30 seconds filing on device measured value, corresponds to the highest measurement range limit, does not exceed values:
- for accuracy class 1.5 - 0.9mm;
- for accuracy class 2.5 - 1.5 mm;
Devices ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 measurement changes, caused by its position change from its normal to any direction for 45 ° (except microammeter), does not exceed acceptable basic error limit. Measurement changes must be expressed in the form of reduced error;
Measurement changes, caused by influence of an external homogeneous constant magnetic field with induction of 0.5mT under the most unfavorable direction of magnetic field, does not exceed ± 1.5%;

Index deviation from the rest position after a sudden excitation. Caused by changes in the final measurements of 2/3 from scales length, does not exceed ± 1.5% at the end of the scale length in 4c;
    Change of ammeter M42300, M42300 voltmeter, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 pointer does not exceed 20% of the scales length;
    The insulation between the case and insulated from the case electric circuits stands for 1 minute action of the test voltage of alternating current frequency of 50 Hz ± 1 Hz. rms value of which corresponds to:
     - Under normal using conditions - 2.0kV;
     - At higher humidity in the working conditions - 1.2kV;
    Devices M42300 ammeter, M42300 voltmeter, M42300 milliammeter, M42300 kiloammeter, M42300 kilovoltmeter  designed for turn on into a network with a voltage of over 650V, must be isolated in the field and  should be specially marked;
    coresponds to those shown in Table 2.
 
    Table 2: Insulators test voltage
 

Resistance  insulation between the case and isolated dc electric circuit of devices ammeter M42300, M42300 voltmeter, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 is not less than:
     a) 20 MOhm - at an ambient temperature of +20 º C ± 5 ° C and relative humidity from 30% to 80%  at operating voltage up to 1kV. plus 20 MOhm for each further complete and incomplete 1000V of working voltage;
     b) 5 MOhm - at an ambient temperature of +60 ° C and relative humidity of 80% at an operating voltage up to 1kV. plus 0.5 MOhm for each further complete or incomplete 1000V of working voltage;
     a) 2 MOhm - at ambient temperature +20 º C ± 5 ° C and relative humidity of 95% at an operating voltage up to 1kV. plus 0.5 MOhm for each further complete or incomplete 1000V ofworking voltage;
     Devices can withstand without damage short-term reload in accordance with Table 3.

     Table 3

Ammeter  M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300. kilovoltmeter M42300, measurement deviation caused by the ambient temperature change from the normal 20 º C ± 5 ° C to any temperature between -50 º C to +60 ° C for every 10 ° C temperature change, does not exceed 0.5 of acceptable basic error limit;
     Measurement changes, caused by deviation of the relative humidity from the normal 30% -80% at 20 º C ± 5 ° C to 95% at +35 ° C, does not exceed acceptable basic error limit;
     Devices M42300 (m) manufactured for use in temperate climates have the resistance to cyclical effects of ambient temperature:
     Cyclic temperature effects:
      - Higher temperature +65 º C;
      - Low temperature - 50 º C;
      - Cycle time - 2:00;
      - The number of cycles - 2;   

Humidity impact on the ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300:
      - Relative humidity - 98%;
      - Temperature - +40 º C;
      - Moisture resistance duration - 2 days;
      - Humidity resistance duration - 8 days;
     Devices retain their characteristics after vibration influence with acceleration and frequency, shown in Table 4.
 
     Table 4: Impact of vibration acceleration and frequency on ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300
 

Devices  produced for nuclear power stations (NPPs) withstand seismic effects equivalent to the effects of vibration parameters shown in table 5;

Table 5
 

Devices ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300. kilovoltmeter M42300 in the transport container can withstand without damage shaking acceleration up to 30m/s2 during transportation with frequency from 80 to 120 beats per minute for 2 hours;
Devices manufactured for use in tropical climates is fungi resistant;
Full range of adjustment proofreader is at least 2% of the entire scale length;
Temperate climate conditions for ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300:
- Temperature - from -5 ° C to +40 ° C;
- Relative humidity - 80% at +25 ° C;
Tropical climate conditions for ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300:

- Temperature - from -5o ° C to +60 ° C;
- Relative humidity – not more than 100% at +35 ° C;

    Vibration resistance devices ammeters M42300, voltmeters M42300, milliammeter M42300,  kiloammeters M42300, kilovoltmeters M42300:
- Acceleration - 5m/ s²...30m/ s²;
- Frequency - 10Hz ... 70Hz;
Shock resistance: acceleration 100m/ s², frequency 10 ... 50 beats per minute;
Devices ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 are nonrecoverable, single channel and single-function products;

Set includes:
- device - 1pc;
- Nuts and washers for device fastening to the panel and connecting of the electrical circuit;
- Calibrated wire, if the devices will be uses with interchangeable shunt (on agreement with the customer) - 1 psc.;
- Additional resistance to voltmeters (10kV and 15kV) (on agreement with the customer) – 1psc;

      - Interchangeable external shunt (on agreement with the customer) – 1psc;
      - Documentation – 1psc.;
      - Manuals for a lot of devices (on agreement with the customer) – 1psc;
     Note - External shunts and additional resistance to ammeters M42300, voltmeter s M42300, milliammetersM42300, kiloammeters M42300, kilovoltmeters M42300 are supplied for additional fee;
 
     Devices operation:
      - Devices are panel meters of magnetoelectric system with a magnet inside;
      - Measuring mechanism of ammeters M42300, voltmeter s M42300, milliammetersM42300, kiloammeters M42300, kilovoltmeters M42300 consists of a magnetic system (magnetic core). Counting device (scale pointer) and the movable part in the cores;

Devices are manufactured with a uniform scale, with the zero mark on the edge of within the measuring range. Scale length 60 mm;
     Scale highlighting is held by an external source of light through the side windows in device’s cover;
     Case parts of ammeters M42300, voltmeter s M42300, milliammetersM42300, kiloammeters M42300, kilovoltmeters M42300 are made of plastic and protect  the measuring mechanism  from contamination.
     The principle of devices operation is based on the interaction of the magnetic field with permanent magnetic electric shock passing along the devices winding;
      Pointer setting of ammeters M42300, voltmeter s M42300, milliammetersM42300, kiloammeters M42300, kilovoltmeters M42300 to zero are performed by the corrector, located on the cover of devices; 

Set up and installation:
      - The devices are designed for built in on vertical or horizontal panels (billboards), made from both magnetic and non-magnetic materials;
      - Devices installation must be made carefully without distortions. Devices setting up on the panel must be rigid and not creating additional vibration;
      - Devices: ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300, kilovoltmeter M42300 should be located away from strong fields of magnetic sources with intensity higher than 0.4 kA/m during installation;
      - Devices voltage supply is over 650V

      - Device should be verified before the installation on the shield;
      - Connection ammeter M42300, voltmeter M42300, milliammeter M42300, kiloammeter M42300,  kilovoltmeter M42300 must be carried out in compliance with the polarity marked in accordance with the current-carrying rods;
     The manufacturer guarantees all technical requirements, if all the conditions are held:  storage, transportation and installation;

       Photos

If necessary we can take photos of a device from various angles.

      Technical Documentation

In case you didn't find in technical specifications for the device all necessary information you are interested in, feel free to contact me.  I will look through the technical documentation for the device and I will be happy to consult you.

Also I may speak directly with the manufacturer and find out more specific information about this product.

If some technical parameters for the device (error, accuracy, measuring range, operating voltage and frequency) do not meet your requirements, please, e-mail me and I will negotiate with the manufacturer whether it is possible to deliver you a device on the desired specifications without a cost increase and in the shortest time.

On delivering the device, electric circuit diagrams and all technical documentation for operation, calibration and maintenance will be supplied. Also there will be documents that testify the accuracy and compliance with specifications.

In addition, translation of technical documentation into the customer’s language may be discussed.

            Delivery set

On delivering the device will be completely ready for use.

There are all necessary cables, adapters, sensors and spare parts as envisaged in technical documentation. Hence, there is no point in purchasing any additional repair & measurement equipment.

           Warranty

Warranty of this item - 12  month.

Before sending a device, all devices are checked whether they comply with all technical specifications.

Highly qualified metrology engineers carry out the check-up of every instrument at a specialized laboratory and with the help of master gages.

If necessary, we can send you photos or video with the check-up process. 

I ship only fully working devices complying with all parameters.

The warranty for this device is 1 year from the date of shipment from my warehouse.

Within 1 year term I will provide the repair of the device for free in case of manufacturing defect or when the technical parameters do not comply with technical documentation. You will have to pay only for delivery. 

When a device is out of order due to your fault (its fall, it is flooded with water, the power supply does not meet the specified technical requirements, input signals exceed the norm, etc.) or there are conspicuous marks of casing opening (broken warranty labels), it is considered a non-warranty repair.

Within 1 year term we can advise you for free on the device operation.

          After-warranty service

After warranty termination I can arrange a paid repair and technical maintenance of a device as well as I can sell you all necessary spare parts for repair at minimum prices. I always have them in stock.

           Packaging

Immediately after checking, the device will be wrapped in several layers of strong air-bubble film and placed into a strong cardboard box. Extra cardboard plates will be used for fixation.

If necessary, wooden box or pallet may be used. For a more reliable fixation foam can be applied. The whole box will be placed in a waterproof polyethylene bag which will be wound with several layers of packing tape.

A special handle will be made for ease of transportation.

Thus, I guarantee qualitative and conscientious packing of the device that reduces to minimum the possibility of damage during transportation.

         Discount (from-10% to -90%)

I suggest you a device which is unique in its class and price category with the following specifications: (accuracy, measurement range, error, temperature operating conditions), endurance and durability (military performance, aluminum, stainless steel, titanium or carbolite casing, shock and vibration resistance, high maintainability and reliability), free measuring kit (cables, adapters, load, fuses, etc.), 1year warranty.

Unused cheap devices with the same specifications, accuracy and durability do not exist.

If you consider the price for this device unreasonably high, and you know the similar equipment at a lower price, please, let me know.

I will help you to compare these two models. In case your model (which is cheaper) is the same as the device I suggest or even it is better, then
I guarantee to sell you a unit at that cheaper price with additional 10% discount.

       Shipping details:

Please, mind that I ship from Ukraine (Europe, +2), so that the shipping time may differ from your local time.

I send goods via AirMailpost.

App. delivery time :

Europe – 7-15 days;

USA, Japan&others – 10-2days (depends on a country).

I will ship in 2-3 business days after payment clearance.

The goods may also be delivered by the express mail services such as DHL, UPS, FedEx, TNT or EMS.

With express delivery you will mostly receive your goods within 3-7 working days.

           Payment details:

I expect payment in 4 days after the auction ends.

I accept a PayPal payment as the safest way of payment (preferably).

If you do not have a PayPal account you can pay by wire transfer to my credit card.

Other variants of payment are acceptable, for example in case of pickup way of shipping, i can accept cash payment. 

(This will be an official purchase on eBay).

 Please, tell me if you cannot pay in time, we can always negotiate it. 

When purchasing a few items, you’ll save on shipping. 

        Return policy:

I accept refunds and returns. If there is something wrong with the device, please, inform me within 5 days after receiving it.

I will refund your costs or send you the other item, as you wish (after I receive the previous item).

Please only serious bidders!