CHINO Works America Inc. - Controllers - LT350, 370 Series Digital Indicating Controllers

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Discontinued

LT350, 370 Series Digital Indicating Controllers - Discontinued
General type with simple operationNew overshoot suppression function. Models LT350 and LT370 digital indicating controllers feature all functions, which are necessary for various control applications, including newly developed PID algorithms and an overshoot suppression function.

TabView Example - Basic From Existing Markup

Features
Models
Measuring Ranges
Specifications
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Easy view and simple operation by large LED displays and large switches.

Universal input of thermocouples, resistance thermometers and DC voltage/current.

MODBUS communications protocol.

Front panel with 7mm thickness.

Conformance to CE, UL and CSA (ul, CSA: approval pending).<

Front panel conforming to NEMA4X(IP66) water and dust protection (option)

LT350

Model	Output signals
LT35010000-00A	Standard universal input/On-off pulse type
LT35030000-00A	Standard universal input/Current output type
LT35050000-00A	Standard universal input/SSR drive pulse type
LT35060000-00A	Standard universal input/Voltage output type
LT35310000-00A	High temperature universal input/On-off pulse type
LT35330000-00A	High temperature universal input/Current output type
LT35350000-00A	High temperature universal input/SSR drive pulse type
LT35360000-00A	High temperature universal input/Voltage output type

LT370

Model	Output signals
LT37010000-00A	Standard universal input/On-off pulse type
LT37030000-00A	Standard universal input/Current output type
LT37050000-00A	Standard universal input/SSR drive pulse type
LT37060000-00A	Standard universal input/Voltage output type
LT37310000-00A	High temperature universal input/On-off pulse type
LT37330000-00A	High temperature universal input/Current output type
LT37350000-00A	High temperature universal input/SSR drive pulse type
LT37360000-00A	High temperature universal input/Voltage output type

Inputs		Input ranges		Standard universal	High temperature universal
Thermocouple	B	0 to 1820°C	32 to 3300°F	○	○
	R	0 to 1760°C	32 to 3200°F	○	○
	S	0 to 1760°C	32 to 3200°F	○	○
	N	0 to 1300°C	32 to 3250°F	○	○
	K	-200 to 1370°C	-300 to 2450°F	○	○
	E	-199.9 to 700.0°C	-300 to 1250°F	○	-
	J	-199.9 to 900.0°C	-300 to 1650°F	○	-
	T	-199.9 to 400.0°C	-300 to 700°F	○	-
	U	-199.9 to 400.0°C	-300 to 700°F	○	-
	L	-199.9 to 900.0°C	-300 to 1650°F	○	-
	WRe5-WRe26	0 to 2310°C	32 to 4190°F	-	○
	W-WRe26	0 to 2310°C	32 to 4190°F	-	○
	PtRh40-PtRh20	0 to 1880°C	32 to 3400°F	-	○
	Platinel II	0 to 1390°C	32 to 2500°F	-	○
Resistance thermometers	Pt100	-199.9 to 850.0°C	-300 to 1500°F	○	○
Resistance thermometers	JPt100	-199.9 to 649.0°C	-300 to 1200°F	○	○
DC voltage	5V	0 to 5V (0.000 to 5.000)	Scale setting range -1999 to 9999 Decimal point position adjustable	○	○
DC current	20mA*	4 to 20mADC (Converted into 1 to 5V)		○	○

Input Specifications
	Thermocouple Standard universal: B, R, S, N, K, E, J, T, U, L High temperature universal: B, R, S, N, K, WRe5-WRe26, W-WRe26, PtRh40-PtRh20, Platinel II
	Resistance thermometer: Pt100, JPt100
	DC voltage: 0 to 5V
	DC Current: 4 to 20mADC
	A 250Ω shunt resistor (sold separately) and the 5V (1 to 5V) are used.
Accuracy rating	±0.25% ± 1 digit (at reference operation conditions)
Reference junction compensation accuracy	±1.0°C (23°C±10°C), ±2.0°C (-10°C to 50°C)
Measuring unit	°C or °F
Sampling cycle	About 0.5 second
Burnout	Up scale (thermocouple input, resistance thermometer input)
Measuring current	Resistance thermometer : 110µA
Scaling	Ranges/scales of DC voltage/current input are optional settings. (-1999 to 9999)
Scale decimal point	0 to 3
Control Specifications
Control cycle time	Approx. 0.5 second
Control system	On-off pulse type PID system Current output type PID system SSR drive pulse type PID system Voltage output type PID system * 2-position control is selectable.
Control setpoint	2 sets switching, 4-digit setting
Setpoint ramp function:	Setpoint ramp unit : °C/minute (common to rising/falling) Setpoint rising ramp: 0 to 9999 (0 = no operation) Setpoint falling ramp: 0 to 9999 (0 = no operation) PV start function : At SV change, power-on, Run/Ready
Auto-tuning	Standard (Manual setting of PID constants enabled)
PID constants	P: 0.1 (0.0) to 999.9% (0 = 2-position) I: 0 to 9999 seconds D: 0 to 9999 seconds
PID deadband (gap)	0.0 to 9.9%
Anti-reset windup	High limit : 0.0 to 100.0%, Low limit : -100.0 to 0.0%
Overshoot suppression function	On/off selectable
Control operation	With direct/reverse action switching
Output specifications	On-off pulse type Output signal: On-off pulse conductive signal Contact ratings: Resistive load-100VAC 3A, 240VAC 3A, 30VDC 3A, Inductive load-100VAC 1.5A, 240VAC 1.5A, 30VDC 1.5A Pulse cycle: Approx. 1 second to 180 seconds adjustable
	Current output type Output signal: 4 to 20mADC Load resistance: 600Ω or less
	SSR drive pulse type Output signal: On-off pulse voltage signal, At ON 12VDC ± 20% (load current … 20mA or less), At OFF 0.8VDC or less Pulse cycle: Approx. 1 second to 180 seconds adjustable
	Voltage output type Output signal: 0 to 10VDC Output resistance: Approx. 10Ω Load resistance: 50kΩ or more
General Specifications
Rated power voltage	100V to 240VAC 50/60Hz universal power supply
Allowable power voltage	90 to 264VAC
Working temperature range	-10 to 50°C (maximum 40°C at closed installation)
Working humidity range	20 to 90%RH (no dew condensation)
Power consumption	Maximum about 10VA
Installation	Panel installation
Weight	About 350g (LT350) About 450g (LT370)
International Standards
CE	EN61326 + A1 Class A, EN61000-3-2 + A14 EN61000-3-3,EN61010-1 + A2
UL	UL3111-1
CSA (C-UL)	C22.2 No. 1010
IP	NEMA4X (IP66) (front protection)

PS Sheet	LT350 Series	PSE-306A
PS Sheet	LT370 Series	PSE-305A