SR1/3/4 series self-tuning PID regulatorDetailed product description：

SR1/3/4 self-tuning PID regulator

SR1/SR3/SR4 are the latest technological products of Shimada Electric Company in 2003. They summarize the application experience of SR60 to SR70 series regulators and highlight the design concept of economic practicality, simple operation, and complete basic functions. The display accuracy is 0.3 level, with functions such as free input, manual adjustment, and adjustable output limit.

The important thing is that the expert PID algorithm of Island Power is adopted, which has unique advantages in preventing system overshoot/undershoot.
Before using the system, the self-tuning function can be activated to find the optimal PID parameters for the system, thereby simplifying on-site debugging and improving regulation quality.
The algorithm of expert PID includes SF overshoot suppression coefficient. Reasonable selection can effectively avoid system overshoot or overshoot.
Output limiting can be used to limit the size and opening of valves, avoiding excessive heating power design and power limitations on certain heating stages of special heating elements.
To prevent deviation from the set range required by the process, the set value limit function can be used to avoid misoperation.
Two sets of independent event relays can be set with 7 types of events, including: upper/lower limit absolute value, upper/lower limit deviation value, deviation value inside/outside, and over range alarm.
DC signal input method, programmable digital range, directly displays on-site industrial values.
The linear error of the calibrated sensor or the measurement error caused by the placement position can be compensated by setting positive and negative offsets as the display of the measured value PV.
To avoid measurement interference on site, an anti-interference digital filtering time constant can be set.

SR1/3/4 Selection Table

Number	SR1/SR3, SR4 PID regulators with dual four digit display, self-tuning expert PID parameters, adjustable output limits, manual/automatic switching, 2 independent upper and lower limit alarms, key locking and other functions, front panel protection level IP66. The working voltage range is 100-240 VAC 50/60 Hz, with complete basic functions that can meet the needs of conventional PID regulation.
SR1-	DIN standard: height 48 x width 48 x depth 110mm, panel opening size: 45 x 45mm
SR3-	DIN standard: height 96 x width 96 x depth 110mm, panel opening size 92 x 92mm, oversized LED display
SR4-	DIN standard: height 96 x width 48 x depth 110mm, panel opening size 92 x 45mm
Input type and measurement range The display range for DC input can be programmed as -1999-9999. The decimal point position can be set, and the difference range between the upper and lower limits is 10-5000	eight free input	12 types of thermocouples, 14 measurement ranges: B: 0～1800,R: 0～1700,S: 0～1700,K: -199.9～400.0 K: 0.0～800.0 K: 0～1200,E: 0～700, J: 0～600, T: -199.9～200.0, N: 0～1300, PLII: 0～1300 ,Wre5-26:0～2300,U: -199.9～200.0, L: 0～600 Pt100 platinum resistance: -200~600, -100.0~100.0, -50.0~50.0, 0.0~200.0 ℃ (Jpt100 omitted) DC millivolts: -10~10, 0~10, 0~20, 0~50, 10~50, 0~100mV
	six	DC voltage: -1~1, 0~1, 0~2, 0~5, 1~5, 0~10V DC load impedance:<600K Ω *DC current input: requires an external 250 Ω resistor 0-20mA (internal selection of 0-5V range); 4-20mA (internal selection of 1-5V range)
Adjust output type		Y-	Normally open relay contact, time proportional period: 1-120 seconds, capacity: 240V AC 2A (resistive)
		I-	Current 4-20mA DC, load impedance<600 Ω
		P-	Solid state relay drive, 12 ± 1.5V DC/maximum 30mA, proportional period 1-120 seconds
		V-	Voltage 0-10V DC, load current<2mA
7 types of alarm event outputs			one	2 sets of normally open relay contacts: EV1, EV2 Capacity: 240VAC 1A (resistive)

SR1/3/4 Terminal Wiring Diagram Outline Dimensional Drawing

SR1/3/4 series self-tuning PID regulator