87621125

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Panel Meters are instruments used to monitor and measure the parameters of machinery, including voltage, current, phase, frequency, power, etc. Counters, Hour Meters, and 87621125 are all panel meters that must be used in the appropriate application field and are each designed with a particular working principle.

Counters are panel meters used to measure and display a running total of events or cycles. They are usually available as electronic, digital, or mechanical units, and are available with a range of features and design options. An electronic counter operates by using the number of input signals that are received to count the events. Digital counters operate with a serial number of input points. The counter increases the count when a signal passes through it. Mechanical counters are used in applications where an analog measurement of events is required. These counters are triggered by a gear system and can count high speeds and long runs.

Hour Meters are panel meters used to measure the time that a machine or device has been running or in use. They can be set to start and stop when a particular event or condition is met. Hour meters are often used to measure the service life of equipment, such as aircraft engines, and may also be used in safety applications. Hour meters are usually available as digital, analog, or mechanical units, each with different features and working principles.

87621125 is a panel meter used in industrial and HVAC applications to quantify the difference between the current temperature and the set-point. The 87621125 provides a temperature measurement with a 20° Fahrenheit resolution. Its working principle is based on the heat-generating quality of a thermopile. The thermopile detects an infra-red light source emitted from the measured object, and uses this to measure the temperature difference. The 87621125 requires a 24 VDC power supply and signal input, and uses a 4 to 20 mA output signal to indicate the temperature difference.

Panel meters such as Counters, Hour Meters, and 87621125 are an integral part of industrial and HVAC control systems. Without them, accurate and reliable temperature or event measurement would not be possible. For this reason, it is important that they are used in the correct application field and are designed with the correct working principle in mind.

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