Shanghai Zhaohui Pressure Apparatus Co., Ltd.
Shanghai Zhaohui Pressure Apparatus Co., Ltd.
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Low-power consumption wireless transmission digital pressure transmitter
The model PT124B-289 is a low-power consumption wireless transmission digital pressure transmitter , it is battery power supply , and has 4 types of wireless transmission mode, including GPRS, LoRa ,ZigBee , NB-IoT . it adopt explosion-proof cast aluminum shall and SS304 joint, built-in high precision diffused silicon sensor chip & LCD screen, it can measure the gas, liquid, oil and other medium non-corrosion, with strong medium compatibility characteristics.
This series of products has many auxiliary functions such as zero clear, backlighting, on/off, unit switching, low voltage alarm, sample rate settable, frequency settable, high and low voltage alarm value settable, instant pressure alarm, etc.
The GPRS wireless pressure transmitter rely on China Mobile's mature GPRS network, upload the field pipeline pressure to the cloud. Users can match IP address and other conventional parameters on-site or remotely.
The LoRa wireless pressure transmitter, which is used with LoRa gateway, has the advantages of low power consumption, short transmission distance, strong signal penetration and self organizing network.
The ZigBee wireless pressure transmitter , which is short transmitter distance, low complexity, low power consumption, low speed, low cost two-way wireless communication technology
The NB-IoT wireless pressure transmitter adopts the latest NB-IoT technology, long transmission distance , with the advantages of low power consumption, high transmission efficiency and low cost.
Application
Firefighting pipe network
HVAC
Intelligent water affairs
Medical equipment
Other situations required wireless pressure monitoring
Features
Low power consumption , battery powered, super long endurance.
Optional battery power supply and power supply mode
GPRS / LoRa / ZigBee / NB-IoT multiple wireless transmission optional
Strong medium compatibility
Widely pressure range 0.1~0... 0.01, 0.1... 1.6... 10... 200MPa
Function
Multiple pressure units switching
Wireless transmission function
On/off function
Remote configuration or key setting IP address, alarm point, upload frequency and so on (GPRS/NB).
Equipped with gateway, high efficiency pressure monitoring in LAN (LORa).
Specification
| Transmission mode | GPRS | LoRa | ZigBee | NB-IoT |
| Range |
Standard range: 0-0.16, 0.25, 0.4,0.6,1.0,1.6,2.5,5.10,25,40,60MPa Micro range: 0-1,2.5,4,6,10,25,40,60,100kpa High pressure: 0-100,160,200,250MPa Negative and compound range: -100…-60…-10… -5-0…5…10…60…100…1000kpa |
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| Over load | ≤10MPa 200%; ＞10MPa 150% | |||
| Accuracy | 0.5%FS | |||
| Power supply | 3.6V Li battery or 24V/12V DC optional | |||
| Long term stability | 0.25%FS/yr (typical) | |||
| Display and back light | LCD display, back light white | |||
| Work temperature | -20-60 | |||
| Compensation temperature | 0-60℃ | |||
| Electric protection | EMI | |||
| Sample rate | 1-600s | |||
| Upload rate | 1-1440minute settable | |||
| Alarm setting | High / Low alarm full span setting | |||
| Data configuration | Button setting or remote setting | |||
| Install thread | M20*1.5, G1/2, NPT1/4 (Customer design) | |||
| Safety certificate | CE | |||
| Explosion proof | ExibIICT4 | |||
| Remarks |
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