Kelvinion mini Cryogenic Temperature Controller

Brand：MultiFields

Model : Kelvinion mini

Q'ty :

Resistance-type (PTC & NTC), diode-type, and thermocouple thermometers (PTC or NTC) have become the preferred solutions for temperature measurement in cryogenic and high-magnetic-field environments. MultiFields' Kelvinion mini is a compact cryogenic temperature controller featuring:

2 independent high-precision temperature measurement channels,
1 high-power PID output channel (up to 100 W),
1 relay output, and 1 analog output channel.

With practical functions such as PID closed-loop control, Zone mode, temperature ramp rate programming, and active overheat detection, the Kelvinion mini cryogenic temperature controller serves as an essential tool for cryogenic research.

01. Input	Input Channels	2
	Isolation	Galvanic isolation between sensor inputs and control circuit
	ADC Resolution	24-bit
	Update Rate	10 Hz
	User Curves	>1000 curves (max 400 points/curve)
	Filter	Kalman Filter
02. Input Parameters	Sensor Types	Diode / Resistance / Thermocouple
	Measurement Method	4-wire
	Excitation	Constant amplitude, alternating direction current (for resistance sensors)
	Supported Sensors	- Diode: Si, GaAlAs - Resistance: 100Ω & 1000Ω Pt, Ge, Carbon-Glass, Cernox®, RO, Rox™ - Thermocouple: J, K, E, T, S
	NTC Input Range	0~10Ω, 0~30Ω, 0~100Ω, 0~300Ω, 0~1kΩ, 0~3kΩ, 0~10kΩ, 0~30kΩ, 0~100kΩ
	NTC Excitation Current	1mA, 0.3mA, 0.1mA, 30μA, 10μA, 3μA, 1μA, 0.3μA, 0.1μA
	NTC Measurement Resolution	0.15mΩ, 0.45mΩ, 1.5mΩ, 4.5mΩ, 15mΩ + 0.02‰ of reading, 45mΩ + 0.02‰ of reading, 150mΩ + 0.02‰ of reading, 450mΩ + 0.02‰ of reading, 1.5Ω + 0.05‰ of reading
	NTC Accuracy	8mΩ, 20mΩ, 50mΩ, 120mΩ, 0.5Ω + 0.02‰ of reading, 1.2Ω + 0.02‰ of reading, 5Ω + 0.02‰ of reading, 15Ω + 0.02‰ of reading, 15Ω + 0.02‰ of reading
03. Temperature Control	Control Channels	2
	PID Tuning	Auto-tuning
	PID Parameters	- P (Proportional): -10000~10000 (resolution 0.01) - I (Integral): -10000~10000 (resolution 0.01) - D (Derivative): -10000~10000% (resolution 0.01%) - Manual Power: 0~10000% (10.000% step)
	Zone Mode	5 temperature zones with independent PID and power settings
	Ramp Rate	0.1~20 K/min
04. Output Channels	Type (25Ω Heater)	Adjustable DC Current
	DAC Resolution (25Ω)	16-bit
	Max Power (25Ω)	100W
	Max Current (25Ω)	2A
	Voltage Limit (25Ω)	50V
	Heater Load (25Ω)	Default: 10~100Ω (user configurable)
	Power Zones (25Ω)	3
	Type (50Ω Heater)	Adjustable DC Current
	DAC Resolution (50Ω)	16-bit
	Max Power (50Ω)	50W
	Max Current (50Ω)	1A
	Voltage Limit (50Ω)	50V
	Heater Load (50Ω)	Default: 10~100Ω (user configurable)
	Power Zones (50Ω)	3
05. General	Relay Outputs	1
	Analog Output	1 channel, 0~10V, 16-bit
	Communication	- USB: Type-B, 115200bps - GPIB: IEEE488.2, addressable - LAN: TCP/IP, 10/100M auto-negotiation
	Display	5.0" Touchscreen, 1280×720
	Safety Features	Heater short/open detection, over-temperature protection, ground detection
	Dimensions	215(W)×88.9(H)×358(L) mm
	Power Supply	100~240V AC, max 150W

Temperature measurement and control down to 300 mK.
2 independent temperature measurement channels with 0.1 mK resolution (24-bit ADC).
Supports resistance, diode, and thermocouple sensors.
Automatically adjusts thermometer excitation current for optimal measurement accuracy and minimal self-heating.
Stores 1000+ user-defined calibration curves.
1 PID output channel with max. 100 W power output.
1 relay output and 1 analog signal output.
Configurable temperature ramp rate (heating/cooling speed).
Zone mode allows PID parameters to switch automatically across different temperature ranges.
Communication interfaces: USB (serial port), Ethernet, GPIB.
Comprehensive safety features: heater short/ open circuit detection, setpoint/temperature limits, and power supply ground monitoring.