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            ABOUT SHANFANG

            Zhongshan Shangfang Instrument Meter Co., Ltd

            Established in 1998, started from customizing digital temperature controllers for freezer manfacturers, according to the idea of "Credit standing roots quality, quality creats brand", and after years endeavor, Zhongshan Shangfang Instrument Meter Co., Ltd developed and produced a whole series of digital temperature&humidity controllers which widely used in refrigeration、air conditioning heating、food and packaging machinery etc.

            • 1998

              Year

              Establish

            • 10000

              Plant area

            • 200

              People

              Existing employees

            • 20

              Product patent

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            OUR PRODUCTS

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            Qualification honor

             CE 證書
            CE 證書
             CQC 證書
            CQC 證書
             SGS 資質證書
            SGS 資質證書
             SGS證書
            SGS證書
             TUV
            TUV
             UL證書
            UL證書
             高新企業證書
            高新企業證書

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            2022-02-15

            2022

            02-15

            Address:?No.66,?Yuelai?Avenue,?Yubei?District,?Chongqing,?China?@?Chongqing?International?Expo?Center Fair?No.:?N7G22 Date:?August 1-3,?2022
            2022-02-10

            2022

            02-10

            Address:?No.66,?Yuelai?Avenue,?Yubei?District,?Chongqing,?China?@?Chongqing?International?Expo?Center Fair?No.:?N7G22 Date:?August 1-3,?2022
            2019-11-12

            2019

            11-12

            2019 China Refrigeration Exhibition (refrigeration, air conditioning, heating, ventilation) is held in Shanghai New International Expo Center. Welcome new and old customers to visit and guide Venue: Shanghai New International Exhibition Center (2345 Longyang Road, Pudong) Booth No.: e2g22 Time: April 9 ~ April 11, 2019
            2019-10-09

            2019

            10-09

            Refrigerator thermostat price 1. Boeing b-196b thermostat Price: 13.8 yuan The b-196b of Boeing thermostat is a new type of refrigerator intelligent timer produced by Boeing electronics. This timer has stable performance, simpler use process and more convenient and quick use for users. The time regulation range of this refrigerator temperature controller is defined as 15-140 minutes for shutdown and 5-140 minutes for startup. Its delay protection mode adopts the delay power on mode to protect the refrigerator compressor, effectively reducing the impact and damage of the refrigerator power supply to the compressor. 2. Boeing b-198a thermostat Price: 16 yuan Compared with b-196b, the price of this refrigerator thermostat is higher. The power saving function of b-198a thermostat can control the shutdown and startup time of refrigerator according to the time of power failure and power supply. In the cold winter, shorten the start-up time of the refrigerator as much as possible, extend the shutdown time of the refrigerator, so as to achieve the purpose of energy saving and power saving of the refrigerator. 3. Zhiyin refrigerator thermostat Price: 15 yuan The price of Zhiyin refrigerator thermostat is cheaper than that of Boeing b-198a. The 3C certified power cord, plus the thickened copper jack, and finally the ABS flame-retardant shell that can effectively resist impact, effectively protect the use of refrigerator compressor. In the temperature controller of Zhiyin refrigerator, its high-precision and high-power potentiometer has more accurate time, high-power relay, higher load power and more reliable and durable use. 4. Zhiyin 196b refrigerator thermostat Price: 13.5 yuan The price of Zhiyin 196b refrigerator temperature controller is 13.5 yuan. Zhiyin 196b refrigerator temperature controller is a small refrigerator internal time temperature time control device, which can prevent the refrigerator from damaging the compressor due to the refrigerant leakage or the power supply interruption caused by the power grid, which needs random high-voltage startup. In the delay protection setting of Zhiyin 196b refrigerator temperature controller, the power on mode is adopted to protect the compressor, which reduces the impact damage of the power supply to the compressor.
            2019-10-09

            2019

            10-09

            The temperature controller is the main part of the electric water heater. With it, it can realize automatic on-off and heating in the preset temperature range. Do you know the working principle and wiring method of the electric water heater? Working principle of temperature controller of electric water heater The temperature controller of electric water heater uses copper metal sheet to make degree contact. Because copper is sensitive to heat expansion and cold contraction, when the temperature does not reach the set value, the copper metal sheet is in a curved shape, and its contact is closed. When the water is heated to the set temperature, the heat of the water will be transmitted to the copper strip on the copper strip in the temperature controller. Because the heat is extended, the contact will be opened to a power-off state. When the temperature drops, the copper strip returns to its original state, making the contact turn on to be electrified and heated. How to connect the temperature controller of electric water heater The temperature controller of electric water heater is divided into different manufacturers, different series and different models. When wiring, it cannot be mechanically copied. Similarly, the temperature controller is connected with different probes. You can refer to the manual of the temperature controller corresponding to the temperature controller, or there will be a mark in the instrument description of the temperature controller to indicate which probe the temperature controller uses. The probe is not normally open or normally closed, in fact, it is resistance property, different materials, different temperature control. There are three types of wiring of temperature controller: thermocouple wiring, output wiring or control wiring, temperature compensation resistance wiring; the output is divided into voltage output, current output, switching value output, etc. the control wiring can be divided into one group or two groups or three groups. Probes are also called thermocouples or temperature sensors. 123 connected to thermal resistance (3-wire system) 23 connected to neutral in thermocouple, high phase to fire (220V), total, low is the control contact, if it is to be externally connected to 220V relay for current expansion, total connected to phase, low connected to one end of the relay. The other end of the relay is connected to the middle. Don't forget to disconnect the low and the interrupt

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