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The HW-XMTA series intermittent or continuous PID regulator is a fully functional display control instrument that can freely define input signals, range, display modes, and other content. The regulator can output up to 5 switch values, one of which can be dedicated to controlling the breaking resistance, breaking coupling, and open circuit information of the input part, and the other is used for switch values, control values, or programmable dual timers, counters, or programmable intelligent sound and light alarms. The PID continuous control quantity, process quantity, setpoint, valve position feedback quantity, etc. inside the instrument are output in the form of 0-10mA or 4-20mA analog quantity. The same quantity can be given to any one or two output ports, up to a maximum of three. Once an unforeseeable fault occurs in the input section, the relay and analog output section used for positional control can maintain their pre fault state, and the instrument display section will flash. In the event of a fault, the output part of the instrument's intermittent and continuous PID control maintains the output before the fault in automatic mode, and the regulator pauses the calculation. The operator can still control it in manual mode.

●HW-XMTA-1000 model has functions

★ 21 input signal selections (indicated at the time of ordering) with triple display of process quantity, setpoint, and control quantity.
★ PID regulation positive and negative action selection.
★ Manual/automatic bidirectional undisturbed switching and manual/automatic status indication.
★ Process quantity (transmitter with adjustable measurement interval and reverse action) analog output.
Both intermittent and continuous PID regulators can control analog output.
★ Set the analog output to 0-10mA or 4-20mA at will.
The action pattern of each positional control point can be set in 8 different ways (such as upper limit alarm, lower limit alarm, absolute value alarm, etc.).
★ Output faults such as broken resistance, broken couple, and broken wire.

●HW-XMTA-2000, 3000, 4000 functions

★ Various analog inputs or frequency inputs (specify when ordering).
★ The input signal can be measured with square root and small signal cutoff (specified when ordering).
★ Adjustment method I for automatically changing the proportional degree P, adjusting the re adjustment time I, and adjusting the pre adjustment time d.
★ PID parameter self-tuning or independent self-tuning of P parameter
★ Control upper and lower limits can be set separately for output control range.
★ Power on automatic or manual (manual output value can be preset) manual automatic status indication and output.
★ Simulate output with internal given value (indicated when ordering).
★ Two or three analog outputs (indicate when ordering).
★ The first analog output port can be set as frequency output mode (full scale is 3~10000Hz).
★ One switch can be set to selectively monitor the other two switch values, achieving intelligent sound and light alarm function with silencing time. (Please specify when placing an order).
The third and fourth set values can be combined to achieve organic control of a relay, simplifying the external wiring or components of the instrument and reducing the occupation of internal hardware resources. If there are different controls for water pumps or sewage pumps (please specify the associated method when ordering).
★ Remote switch quantity control set value displacement (SP=SP1 ± P 1h or ± SP4).
The 50Hz synchronous bidirectional thyristor zero crossing interpolation control algorithm is used to achieve optimized control of each sine wave, avoiding high-order harmonic pollution of the power grid caused by high-power loads.
The intermittent PID regulator instrument can directly control single-phase resistive loads with AC power below 2KW or output 3 sets of synchronous signals triggering bidirectional thyristors below 500A for users with built-in 40A bidirectional thyristors.

●HW-XMTA-3000 and 4000 models with functions

8 sets of given values SP1 and P, I, D parameter storage and calling.
The control output of the remote switch quantity control regulator is PID regulation mode or hold state, with bidirectional disturbance free switching.

●HW-XMTA-4000 Function

★ Set the given values and PID parameters online without disturbance.
The control input and output of the remote switch quantity control regulator are PID regulation mode or tracking state, with bidirectional disturbance free switching.