Smart Junction Box – Intelligent. It can quickly and batch connect thermocouples, thermal resistors, humidity sensors through internal self-locking connectors to form a set of temperature and humidity measurement units. The junction box integrates a temperature sensor for reference end compensation and a memory for storing sensor parameters. It can be quickly connected to the acquisitor host in a plug-and-play manner, thereby realizing automatic recognition of sensors and automatic loading of related parameters.
Smart Junction Box – Usability. The channels of the PR201 series acquisitor have excellent electrical measurement consistency. When the sensor correction value can be automatically loaded, the users do not need to pay attention to the correspondence between each sensor and the physical channel of the acquisitor. They only need to focus on the correspondence between the sensor number and the actual layout diagram, making the sensor location logic simpler.
Smart Junction Box – Reliability. Special wire ducts are designed on both sides of the junction box, and necessary positions are reserved for the sequential arrangement of each sensor lead. The wire duct adopts an S-shaped structure, which can effectively disperse the stress of the sensor lead and avoid lead breakage caused by pulling force.
Smart Junction Box – Compatibility. The junction box is compatible with sensors of various specifications, including 11 types of thermocouples, four-wire Pt100 and 0~1V output humidity or other types of transmitter measurement. At the same time, multiple sets of 3.3V power supplies with overcurrent protection function are provided internally to power the transmitter.
The channel switching uses a mechanical relay array, which does not cause additional electrical measurement errors due to leakage current, thereby achieving excellent channel consistency. Another advantage of the relay structure is that the signal loop can withstand 250V AC voltage accidentally entering and can effectively suppress surge voltage impacts under harsh working conditions.
The sampling data is highly reliable, and the built-in industrial-grade FLASH memory is used to save the original data of each inspection operation, The data can be viewed and copied, but cannot be changed. During the inspection operation, the data can also be saved in an external U disk at the same time, and the security and reliability of the data are improved through double backup.
The closed structure design adopts aluminum alloy shell, and the safety protection level reaches IP64, which can be used for a long time in harsh environments such as dust and vibration.
It uses a detachable intelligent lithium battery pack, which can run continuously for more than 12 hours when fully charged. The built-in battery management system can accurately estimate the remaining usage time based on the real-time power consumption, and can provide diagnostic information including battery cycle number, charge and discharge status, etc.
The Internet of Things Function. It has the built-in Bluetooth and WiFi modules, and can be used in conjunction with the PANRAN Smart
Metrology Mobile APP to realize remote real-time monitoring, recording, data output, alarm and other functions of networked devices; historical data is stored in the cloud for easy query and data processing; the software has rich permission configuration modules, and the user units can independently manage the account of the unit, support the simultaneous online access of multiple users and the configuration of different user permission levels.
General Technical Parameters
|
Model
|
PR201AS
|
PR201AC
|
PR201BS
|
PR201BC
|
|
RS232
|
●
|
●
|
●
|
●
|
|
Bluetooth
|
-
|
●
|
-
|
●
|
|
WIFI
|
-
|
●
|
-
|
●
|
|
Number of TC channels
|
30
|
20
|
|
Number of RTD channels
|
30
|
20
|
|
Number of humidity channels
|
90
|
60
|
|
Weight
|
1.7kg（without charger）
|
1.5kg（without charger）
|
|
Dimension
|
310mm×165mm×50mm
|
290mm×165mm×50mm
|
|
Working temperature
|
-5℃～45℃
|
|
Working humidity
|
（0～80）%RH, Non-condensing
|
|
Battery type
|
PR2038 7.4V 3000mAh Smart lithium battery pack
|
|
Battery duration
|
≥14h
|
≥12h
|
≥14h
|
≥12h
|
|
Warming-up time
|
Effective after 10 minutes warm-up
|
|
Calibration period
|
1 year
|
Electrical Technical Parameters
|
Range
|
Measuring range
|
Resolution
|
Accuracy
|
Max difference between channels
|
Acquisition
speed
|
|
70mV
|
-5mV～70mV
|
0.1µV
|
0.01%RD+7µV
|
4µV
|
High speed：0.2 s/channel
Medium speed：0.5 s/channel
Low speed：1.0 s/channel
|
|
400Ω
|
0Ω～400Ω
|
1mΩ
|
0.01%RD+20mΩ
|
5mΩ
|
High speed：0.5 s/channel
Medium speed：1.0 s/channel
Low speed：2.0 s/channel
|
|
1V
|
0V～1V
|
0.1mV
|
0.5mV
|
0.2mV
|
High speed：0.2 s/channel
Medium speed：0.5 s/channel
Low speed：1.0 s/channel
|
|
Note 1: The above parameters are tested in an environment of 23±5℃, and the maximum difference between channels is measured in the inspection state.
Note 2: The input impedance of the voltage-related range is ≥50MΩ, and the output excitation current of the resistance measurement is ≤1mA.
|
Temperature Technical Parameters
|
Range
|
Measuring range
|
Accuracy
|
Resolution
|
Remarks
|
|
S
|
0℃～1760.0℃
|
@ 600℃，0.9℃
@ 1000℃，0.9℃
|
0.01℃
|
Conforms to ITS-90 temperature scale
Including reference end compensation error
|
|
R
|
|
B
|
300.0℃～1800.0℃
|
@ 1300℃，1.0℃
|
|
K
|
-100.0℃～1300.0℃
|
≤600℃，0.6℃
＞600℃，0.1%RD
|
|
N
|
-200.0℃～1300.0℃
|
|
J
|
-100.0℃～900.0℃
|
|
E
|
-90.0℃～700.0℃
|
|
T
|
-150.0℃～400.0℃
|
|
Pt100
|
-200.00℃～800.00℃
|
@ 0℃，0.08℃
@ 300℃，0.11℃
@ 600℃，0.16℃
|
0.001℃
|
Output 1mA excitation current
|
|
Humidity
|
1.00%RH～99.00%RH
|
0.1%RH
|
0.01%RH
|
Transmitter
error is not included
|
