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HOME ⊙ WATLOW ⊙ Watlow Series 93 Controller
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Watlow Series 93 Controller

来源: | 作者:FAN | 发布时间 :2025-11-10 | 32 次浏览: | Share:

[Er5] Non volatile memory verification error: 1. Power off and restart after 30 seconds to eliminate transient interference; 2. Enter the calibration menu and execute [rSt] (restore factory calibration); 3. If it is ineffective, it needs to be returned to the factory for repair (memory damage)

[Er6]/[Er7] Analog to digital conversion undercurrent/overflow (sensor open circuit, polarity reversed) 1. Check sensor wiring: thermocouple confirms polarity, RTD confirms lead resistance, process signal confirms signal source; After replacing the sensor, press the forward button to clear the error; 3. If the wiring is normal, check if the DIP switch matches the In parameter

（2） Daily maintenance

regular maintenance

Check monthly whether the wiring terminals are loose (especially in vibration environments), whether the sealing gasket is aging (IP65 model), and whether the sensor probe is scaled (affecting temperature measurement accuracy).

Calibrate once every quarter: Use a precision temperature source (such as a dry furnace) to simulate the standard temperature. If the measurement deviation exceeds ± 1 ° C, enter the calibration menu to adjust the [CAL] parameter (if the actual temperature is 200 ° C, it displays 198 ° C and is set to+2 ° C).

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