Guangzhou Keyi Instrument Technology Co., Ltd.

The working principle of the patrol instrument is to sequentially measure each input channel, and the measurement results are placed in the data buffer for display and communication. The advantage is that the size of the measurement device can be minimized and the integration cost can be reduced. ■ The measurement speed of the inspection instrument is . second per channel (series thermocouple input channels are . seconds, other signal input channels are . seconds, which are faster than other series). For example, for a channel, the cycle time is 3 seconds, that is, for each channel, it is measured every 3 seconds. ■ When working in fixed-point mode, the cycle interval measurement method is adopted to take into account the rapid measurement of fixed-point channels and the normal detection of other channels. At this time, the fixed-point channel measures times per second, and the measurement speed of other channels is times slower than the non-fixed-point method. ■ The interval time of the tour display is set independently, from seconds to seconds. The displayed data comes from the measurement value buffer and is asynchronous with the measurement. ■ The measurement value read from the communication interface comes from the measurement value buffer and is asynchronous with the measurement. ■ Alarm processing is performed once per measured channel and is synchronized with the measurement. ■ The series is a standard type that meets most application requirements and comes with standard communication interfaces. Cooperate with industrial computers to achieve high-precision and low-cost analog quantity collection. ■ Series is economical, suitable for temperature display and alarm within points. ■ It is a high-precision series. Thermal resistance input adopts wire system. The thermocouple cold end compensation is externally connected to ensure the measurement accuracy of the system. It is widely used in the measurement of heat flow and temperature difference. ■ It is designed for the need for independent alarm or independent transmission of each channel within the channel. It can replace a general single-channel instrument. Minimize the size of the measurement and control device. Series ■ .level accuracy, measurement and control speed .seconds per channel. ■ Channel thermocouple, thermal resistance input. You can set the total number of channels used, and you can also close channels you don't care about temporarily so that they do not participate in tour display and alarm comparison. ■ Bit channel number display, bit measurement value display, display range -~. ■ The display resolution of the thermal resistor is .℃, and the display resolution of the thermocouple can be set to ℃ or .℃ through parameters. (Each channel is set independently) ■ Each channel independently sets the digital filter time constant to improve display stability. ■Each channel independently sets zero point and full-scale correction to improve system measurement accuracy. ■Aluminum alloy shell. Plug-in terminal blocks. ■ Can be connected with thermal resistors,,,B,B,3 and thermocouples,,R,B,,,,. ■ Equipped with fixed-point display function for easy adjustment. ■ Equipped with parameter copy function, parameter setting can be performed quickly, greatly reducing the workload of parameter setting. ■ Alarm function ① Independent alarm setting values and independent upper or lower limit alarm methods for each channel. In this way, the upper and lower limits of each channel can be alarmed. ② Alarm sensitivity setting. ③ Independent alarm indicator lights for each channel. ④ Point alarm output, a settable alarm output mode. Mode: How the flash alarm works. Point alarm output: When any channel enters the alarm state from the non-alarm state, it closes automatically and delays recovery (confirmation) or panel button recovery (confirmation). Point 1 alarm output: closed as long as there is a channel in alarm state. The alarm indicator light of each channel has 3 states: ① Off: Indicates that the channel is in a non-alarm state. ② Flashing: Indicates that the channel enters the alarm state from non-alarm state, and there is no automatic delay confirmation or panel button confirmation. ③ Lights up to indicate that the channel is in alarm status and has been confirmed. Mode: The two alarm set points of each channel share the mode. Point alarm output: The point alarm set point of any channel is closed when it is in alarm state. Point alarm output: The point alarm set point of any channel is closed when it is in alarm state. Content code description price - point temperature measurement. Level measurement accuracy measurement and control speed (. second × number of channels) Basic price: Overall size × × Opening size: × ×× Opening size: Measurement value display) Channel number Channel input Input signal temperature detection, select the input signal through parameter setting: thermocouple (R/B) thermal resistance (/B/B/3) alarm point public alarm relay output, 3, resistive load power supply Specification- / - /