SR70 series economical 0.5 grade PID regulatorDetailed product description：

The SR70 series is the latest 0.5 level economical instrument launched by Shimadzu Electric Company in Japan, which features no overshoot expert PID algorithm. It incorporates electronic technology developed in recent years in its design, and has the characteristics of easy operation, excellent adjustment quality, and powerful application functions. In the product design of this series, Island Power Company also adopted important technical suggestions from Chinese agents. It is currently the most cost-effective economic instrument introduced domestically, and will gradually replace the original SR46, SR47, SR48, and SR49 instruments.

Display: Dual four digit seven segment digital display, control output, self-tuning (AT), alarm and disconnection alarm (AH, AL/HB) status indicator lights, measurement accuracy of 0.5% of full range+1 word; Display range of -10 to 110% of full scale; Display resolution of 0.1 or 1 word; Display refresh cycle of 0.5 seconds.

Settings: Use four panel keys: cycle key, up key, down key, and confirm key.

Intelligent input: Users can freely select eleven types of thermocouples B, R through panel keys, S, K. E, J, T, N, U, TL and eight types of platinum resistors Pt100/JPt100 and three types of millivolt 0-10mV, 10-50mV, 0-100mV DC input types; Voltage input 0-1,1-5,0-10V current input 4-20mA can be set; The input filtering time can be set from 0 to 100 seconds; Measurement value offset+20.0 or+200 numerical units; Sampling period is 0.5 seconds.

Adjustment algorithm: Anti overshoot expert PID, automatic tuning or positional adjustment; Proportional band 0.1-999.9%, integration time 1-6000 seconds, differentiation time 0-3600 seconds, positional action sensitivity 1-999 numerical units; Control output reaction and positive effects can be set; The contact output of the time proportional periodic relay is fixed at 20 seconds, and the SSR output is 2 seconds; The anti overshoot suppression coefficient SF (0.01-1.00) can be set.

Adjust output: Contact output SR71 240VAC 2A/1.2A (inductive), SR72, SR73, SR74 2.5A/1.5A (inductive); Linear output current 4-20mA, maximum output impedance 600 Ω; The linear output voltage is 0-10V, with a maximum load current of 2mA; the solid-state relay outputs 15+3V DC (when the load is 1.5K Ω), with a maximum of 20mA.

Alarm output: Two independent alarm relays (normally open contact 240VAC 1.5A; Users can freely set eight alarm types, including upper and lower limit absolute values/deviation values; The sensitivity of the alarm action is fixed at 0.2% of the full range.

Single phase heater disconnection alarm: suitable for regulating output types of relay contacts or solid-state relays; The maximum current monitoring range is 0.1-50.0A; the CT accuracy of the current transformer is+5 (5%+1 word); Can be set to lock or real-time alarm mode.

Set value offset (dual set value): can be controlled through the external SB terminal of the instrument; The offset range can be set from 1999 to 2000 numerical units.

Key Lock: After completing parameter and system debugging, a software lock can be set to protect the working parameters on site.

Himanton high-power solid-state relay: Industrial grade high-power AC solid-state relays with 100A, 180A, 240A, and 300A have been developed (patent number)
94248502.5) is used in conjunction with island power P-type output instruments for zero crossing power regulation of three-phase and single-phase pure resistance loads.

Linear current output type can be equipped with single-phase voltage/power regulating boards PAC15P/C, PAC35P/C (half controlled bridge) and Shimanto impedance capacitance absorption circuit MTX or MFX 55A~150A power modules for island power supply

Other: Parameter storage: non-volatile EEPROM; Working environment temperature and humidity range: -10~50 ℃<90% RH (no condensation); Working voltage: 100-240VAC+10% 50/60Hz; Power consumption: 10W; Protection standards: front panel dustproof and waterproof IEC standard (IP52), back terminal block IEC standard

project	number	Double four digit digital display, measurement accuracy of ± 0.5% of full range+1 word, sampling twice per second, self-tuning
1. External dimensions	SR71-	DIN standard size height: 48 x width: 48 x depth: 110mm hole: 45 x 45mm ★ no overshoot
	SR72-	DIN standard size 96 × 48 × 110mm 68 × 68mm expert PID
	SR73-	DIN standard size 96 × 96 × 110mm 92 × 92 mm
	SR74-	DIN standard size 96 × 48 × 110mm 92 × 45 mm
2. Input type and measurement range (anti-interference filtering constant can be set from 0 to 100 seconds for industrial field measurement values)		eight free input	Thermocouples: 11 types, 22 measurement ranges (Hua Shi omitted): B: 0～1800 R: 0～1700S: 0～1700 K1: -100～400 K2: 0～1200 E: 0～700 J: 0～600T: -199.9～200.0 N: 0～1300 U: -199.9～200.0 L: 0～600 ℃. Platinum resistance: Pt100 or JPt100 standard, with 16 measurement ranges (Hua Shi omitted): -200~600, -100.0~100.0, -50.0~50.0, 0.0~200.0 ℃. Millivolt voltage: 0-10, 10-50, 0-100; Display range -1999 to 9999 can be set
		four	Current: 4-20mA accepts impedance of 250 Ω; Display range -1999 to 9999 can be set
		six	Voltage (V): 0-1,1-5,0-10; Display range -1999 to 9999 can be set
3. Adjust the output type (adjustment methods: PID, PD, PI, P, and positional)			P	Solid state relay SSR driving voltage output: proportional cycle fixed at 2 seconds; Level: 15V ± 3VDC/20mA (at 1.5K)
			Y	Relay contact: Fixed proportional cycle of 20 seconds; 240V AC: 2.5A/(pure resistance) 1A/(inductive)
			I	Linear current output: 4-20mA DC, output impedance below 600 Ω
			V	Linear voltage output: 0-10V DC, load current below 2mA
4. Option type ● Upper and lower limit alarm relay output (optional) Note: Four alarm modes can be set ● Single phase heater disconnection alarm (optional) Note: Single phase disconnection alarm is only applicable to Y1 or P1 output type instruments SB set value offset (optional)				one	Independently set upper and lower limit alarm relays output relay contact capacity: 240VAC 1.5A (pure resistance)
				two	Upper and lower limit alarm+wire breakage alarm (0.0~30.0A detection)
				three	Upper and lower limit alarm+wire breakage alarm (detection from 0.0 to 50.0A)
				five	Upper and lower limit alarm+SB set value offset (dual set value)

SR70 series economical 0.5-level PID regulator