How to create or delete a meter?

  {

        "meterKey": "001",

        "description": "Contador de água",

        "unitCost": {

            "amount": 250.000000,

            "baseAmount": 250.000000,

            "reportingAmount": 250.000000,

            "fractionDigits": 2,

            "symbol": "€"

        },

        "slidingWindowSize": 30,

        "startValue": 123.750000,

        "startValueDecimalPlaces": 2,

        "maxValue": 999999,

        "remarks": null,

        "serial": null,

        "meterType": 1,

        "unit": "LT",

        "locationFunction": null,

        "family": null,

        "brand": null,

        "brandModel": null,

        "assetType": 1,

        "location": "ED01",

        "equipment": null,

        "tool": null,

        "parentMeter": null,

        "currency": "EUR",

        "averageCalculationMethod": 1,

        "company": "DEMO"

    }

• MetertKey: The meter's key. If this parameter is not filled in, it assumes the defined sequential number. 
• Description: Short description of the meter. This field is mandatory.
• UnitCost: Unitary cost value.
• SlidingWindowSize: Moving window size.
• StartValue: Start value.
• StartValueDecimalPlaces: Decimal places value.
• MaxValue: Maximum value.
• Remarks: Remarks.
• Serial: Meter serial number.
• MeterType: Type of meter. (1- Reading meter type. 2- Increment meter type.) Mandatory field.
• Unit: Meter unit. Mandatory field.
• LocationFunction: The key of the location function. 
• Family: The family's key.
• Brand: The brand's key.
• BrandModel: The model's key.
• AssetType: Asset type. (1-location; 2- equipment; 3- tool).
• Location: The location's key.
• Equipment: The equipment key.
• Tool: The tool's key.
• ParentMeter: The parent meter key.
• Currency: The currency's key.
• AverageCalculationMethod: Average calculation method. (0 - none; 1- moving average days; 2- moving average
  reading; 3- global).
• Company: The company's key.

When this method is executed successfully, it returns HttpStatusCode.OK.