0.1 High Resolution, High Performance, High Precision 0.1 Level PID RegulatorDetailed product description：

SR253 is the successor product of the high-precision SR25 PID controller from Shimadzu Electric in Japan. It has a five digit display, high resolution of 0.1 (with decimal point for temperatures above 1000 degrees) and 0.001 (platinum resistance range of 0.000 to 50.000), and an adjustable resolution of 1/8000. Equipped with a large LCD display screen, displaying four rows of data simultaneously. The new features include: adopting the Island Electric patent's no overshoot expert PID new algorithm, improving the instrument's ability to resist overshoot and overshoot, and suppressing disturbances; The PID parameters can automatically follow the PID algorithm of the set area; Self setting point limit to prevent processing materials from overheating; External control is involved in regulating output operations to achieve feedback control of the load; Dual output room temperature point adjustment conversion function, etc. As a high-precision instrument, it can be widely used in semiconductor manufacturing, instrument measurement, sensor calibration, environmental testing equipment, petrochemical, metallurgical and other self-control fields.

Ten independent pre-set settings. Twenty sets of independent PID parameters corresponding to dual outputs, as well as twenty sets of adjustable output limits. The set value can be selected internally or externally.

The external remote control setting function can also participate in adjustment (cascade control, non isolated standard configuration/isolated type optional), and multiple SR253s can be combined with programmable FP21 set value transmission to form a multi zone temperature control system. The control method of external remote control involves the calculation of output to meet the requirements of load feedback control.

Isolated digital communication interface (optional), can be configured with RS232C, RS422A, RS485 interfaces, port addresses 0-99, multiple communication protocols. We can also provide a Himanton optical isolation intelligent 232-422-485 communication converter, which can be combined with XF-2000 Chinese window configuration software to form a small distributed system with the upper computer (note: 6-year usage history)

Second output function (optional), two sets of outputs with opposite or the same polarity, used for heating/cooling regulation, or main and auxiliary control with the same polarity. It has independent PID parameters and output limiting, thus overcoming the difficulties at room temperature conversion points (involving action polarity and output quantity). (Mainly used for environmental testing equipment with a wide temperature range)

Three sets of independent event relays (optional), capable of setting 19 types of events, including: upper and lower limit deviation values, deviation values outside/inside, absolute values of upper and lower limits, upper and lower limit alarms for set values, self-tuning, manual adjustment, external remote control, slope operation, offline control, measured values, external remote control exceeding range, output polarity transition, and heater disconnection.

External digital input/output (optional): Eight sets of voltage free contact DI input/five sets of DO OC gate output. Four sets of DI can be connected to BCD code to select SV value, and the other four sets can define eight functions, including self-tuning, manual, external remote control, slope operation/stop, offline control, and polarity conversion adjustment. Convenient for PLC program control.

0-10mV, 0-10V, 4-20mA isolated analog transmission output (optional). Type: measured value, set value, deviation value, adjustable output transmission.

Single phase heater disconnection and heating circuit alarm (optional): current monitoring range: 0.0~55.0A, with 1 current transformer attached with the table.

project	Number	Measurement value five digit digital display, 17 status lights, accuracy ± 0.1% FS, large LCD screen (21 characters and 4 lines) sampling 5 times/second
1. Appearance	SR253-	DIN standard: height 96 x width 96 x depth 125mm, panel opening size 92 x 92mm, power supply: 100~240Vac 15W
2. Input type and measurement range		one	Thermocouple: 19 types to choose from, -200.0~2300.0 ℃, see the division selection table for details, input impedance:>500K Ω
		two	Platinum resistance: 16 measurement ranges are available, ranging from -200.0 to 600.0 ℃. Please refer to the division selection table on the flowchart for details. Three wire system
		three	DC millivolts 0-10, 10-50, -10 to 10, 0-20, 0-50, 0-100, -100 to 100 Input impedance:>500K
		four	DC current: 4-20mA, 0-20mA, input impedance: 250 Ω DC input programmable range: -19999-26000
		six	DC voltage: 0-1,1-5, -1-1,1,0-2,5,0-10, -10-10V Input impedance:>500K Ω, decimal point arbitrary
3. Adjust output type 1 Positive and negative effects can be set (two working modes) Resolution 1/8000			Y-	Relay contact, time proportional cycle 1~200 seconds, contact: 240V AC 2.5A resistive/1A inductive
			I-	Current 4-20mA, load impedance<600 Ω
			P-	Solid state relay drive, with a time proportional cycle of 1-200 seconds, 12 ± 2V DC<30mA
			V-	Voltage 0-10V DC, load current<2mA
4. Adjust the output to two types Positive and negative effects can be set (Four working modes) (Optional)				N-	nothing
				Y-	Relay contact, proportional cycle 1~200 seconds, contact: 240V AC 2.5A resistive/1A inductive
				I-	Current 4-20mA, load impedance<600 Ω
				P-	Solid state relay drive, proportional cycle 1~200 seconds, 12V ± 2 DC<30mA
				V-	Voltage 0-10V DC, load current<2mA
Event output (19 types of alarms and statuses) Heater disconnection/loop alarm (single-phase only) (optional)					0	nothing
					one	3 sets of event outputs, contact: 240V AC 1.5A resistive
					two	3 sets of event outputs and 30A heater disconnection alarm (only Y and P output types are optional)
					three	3 sets of event outputs and 50A heater disconnection alarm (only Y and P output types are optional)
6. Simulate external remote control setting types (Isolation as an option) Purpose: Cascade control, external feedback for load regulation (with external sensors to achieve constant voltage, constant current, and constant power control)						06		0-10V DC input, input impedance>500K Ω
						04		4-20mA DC input, input impedance: 250 Ω
						05		1-5V DC input, input impedance>500K Ω
						fourteen		4-20mA DC input, input impedance: 250 Ω
						fifteen		1-5V DC input, input impedance>500K Ω
						sixteen		0-10V DC input, input impedance>500K Ω
7. Isolation analog transmission output type (Optional) Transmission type: measured value, set value, deviation value, adjustable output quantity							00	nothing
							thirteen	0～10mV DC， Output impedance: 10 Ω			Single transmission output
							fourteen	4～20mA DC， Load impedance<300 Ω
							sixteen	0～10V DC， Load current<1mA
							twenty-three	0～10mV DC， Output impedance: 10 Ω			Dual transmission output
							twenty-four	4～20mA DC， Load impedance<300 Ω
							twenty-six	0～10V DC， Load current<1mA
8. 8 external digital inputs/5 digital outputs (DI/DO) (optional)								0	nothing
								one	4 BCD codes SV number selection, 4 sets of DI, 5 sets of DO, 24 pin plug
9. Isolation of digital communication interface types with multiple protocols (optional) Supporting product: XF2000 configuration software Himanton optical isolation RS232-422/485 converter									0	nothing
									five	RS-485
									six	RS-422A
									seven	RS-232C

SR253 High Resolution, High Performance, High Precision, Class 0.1 PID Regulator