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Temperature monitor

Temperature monitor

MultiFields introduces the "Kelvinion Monitor", which comes standard with 12 independent, high-precision temperature measurement channels (RTD and Diode type thermometers are supported), each with a sampling rate of 10 SPS, and synchronised sampling between the channels with a sync time of better than 100 us. the master-slave design allows for easy expansion to up to 32 channels and support for mounting in standard cabinets. The master-slave design makes it easy to expand to a maximum of 32 channels and supports installation in standard cabinets.

Temperature monitor Overview

In large cryogenic installations it is often necessary to check temperatures at several locations simultaneously, and for this need of multi-channel temperature measurement MultiFields has launched the "Kelvinion Monitor" cryogenic monitor. It comes standard with 12 proprietary, high-precision temperature measurement channels (RTD and Diode type thermometers), each with a sampling rate of 10 SPS and synchronised sampling between the channels with a sync time of better than 100 us. the master-slave design allows for easy expansion up to 32 channels and supports mounting in standard enclosures.


Features:
- Temperature measurement can be as low as 300 mK, the measurement resolution is as high as 0.1 mK (24-bit ADC).
- Standard configuration of 12 channels, and support for optional 2 ~ 32 channels;
- Each temperature measurement channel is independent of each other, the sampling rate are 10 SPS;
- Each channel is independent of each other, with a sampling rate of 10 SPS; the channels support synchronous sampling function, with a synchronisation time of better than 100us.
- Automatically adjust the excitation current of the thermometer to obtain the measurement accuracy and heat generation;
- Support 1000+ user-defined indexing table;
- Support USB (serial port), network port, RS485 communication mode.


Temperature monitor Technical Parameter


Product parameters of Temperature Monitor Kelvinion Monitor:

Input
Input channel12 channels; Optional 2 to 32 channels are available
IsolationThe sensor input channel is electrically isolated from the control circuit
Analog-to-digital conversion
      24 位
Update rate
Ten times per second
User curve
More than 1,000 curves (with a maximum of 400 points per curve)
Filtering
Kalman filter
Synchronization timeThe inter-channel synchronous sampling time is less than 100 µs
Input parameters
Sensor type
Diode type/resistance type
Measurement type
Four-line method
MotivationConstant amplitude alternating direction current excitation (resistive type)
Support sensors
Diode: Si, GaAlAs;
Resistive type: 100 Ω & 1000 Ω Pt, Ge, Carbon-Glass, Cernox®, and Rox™
NTC- Input Range

0~10

Ω

0~30

Ω

0~100

Ω

0~300

Ω

0~1

0~3

0~10

0~30

0~100

NTC- Excitation Current1 mA
0.3mA
0.1mA
30µA 
10µA 
3µA
1 µA 
0.3µA
0.1 µA
NTC- Measurement Resolution
0.15 mΩ
0.45 mΩ
1.5 mΩ
4.5 mΩ
15 mΩ
+0.02‰
of rdg
45 mΩ
+0.02‰
of rdg
150 mΩ
+0.02‰
of rdg
450 mΩ
+0.02‰
of rdg
1.5 Ω
+0.05‰
of rdg
NTC- Accuracy
8 mΩ
20 mΩ
50 mΩ
120 mΩ
0.5 Ω
+0.02‰
of rdg
1.2 Ω
+0.02‰
of rdg
5 Ω
+0.02‰
of rdg
15 Ω
+0.02‰
of rdg
15 Ω
+0.05‰
of rdg
General
Communication
Serial port (USB) : USB-TypeB port, baud rate 115200
LAN: TCP/IP protocol, 10M/100M adaptive rate, supports setting IP addresses and port numbers
RS-485: Equipped with isolation protection function, isolation voltage 2500VDC, 9600 baud rate
Display2.4-inch display screen; Resolution: 320 x 240
SizeHost: 79(W) * 88.9(H) * 135(L) (unit: mm)
Slave: 22.5(W) * 88.9(H) * 135(L) (unit: mm)


Temperature monitor Basic Configuration

Semiconductor
IC
Wafer

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