HPM420L
Level Transmitter
SemiConductor Type
Diffused Silicon Pressure Transmitter
Analog Type
Integration
Stainless Steel
G
Two-Wire
Liquid
IP68
ISO9001
Customized
Pressure Sensor
0..0.5..10mH2O
1.5 times the full scale
±0.5%FS
0.2%FS/year
3.6V lithium-ion battery
RS485
0~80ºC
-30~100ºC
IP68
LCD display
HangJia Sensor
Carton
China
90262010
Product Description
Product Overview:
Parameters:
Structure Drawings:



Electrical Connection:
Ordering Guide:
Related Products:




Certification:

FAQ:
1. Q: Are you manufacturer or trading company?
A: We are manufacturer which focuses on sensor for 10 years.
2. Q: What's your quality control system?
A: MC, ISO9001, CE Certificated.
3. Q: What is the warranty of your products?
A: Our warranty time is 18 months after shipment.
HPM420L low power consumption level transmitter uses high quality stable pressure sensor as the measurement element, it measures the static level pressure accurately which has direct ratio with liquid depth. Then converting the measurement value into standard RS485 signal through the signal conditioning circuit to achieve the measurement of liquid depth. This product has extremely low power consumption and long service life with lithium-ion battery. The product has display, and with RS485 signal output, it can be networked or embedded with wireless module implement wireless transmission. With long-term aging and stability testing, the product is suitable for harsh outdoor environment and can be widely used for groundwater, rivers, lakes, surface water tanks, and inventory water tanks.
Features:- Low Power Consumption
- lithium battery inside product as supply
- On-site LCD Digital Display
- With RS485 signal output,easy adapted with wireless module
- Special Anti-condensation design
Parameters:
Range | |
Measurement range | 0~0.5…10mH2O |
Overload | 1.5 times for Full scale |
Notes:Can also use mH2O,inH2O,m,mm, etc. as unit Need to highlight the density of liquid to be measured when use length unit such as m,mm etc. |
Medium | |
Type | Liquid which applicable with the contact material |
Output Signal/Power Supply | |
Output Signal/ | RS485 |
Power Supply | Vs=3.1~8 VDC(lithium-ion battery inside ER14250,3.6V 1200mAh) Vs=5VDC (External power supply) Vs=24VDC (External power supply) |
Power Consumption | |
Standby current | <20uA |
Date collection cycle | 0~65535s |
Power Consumption | About 200uA with data collection cycle as 1s About 70uA with a data collection cycle of 3s About 50uA with a data collection cycle of 5s ... Note: Longer data collection cycle, lower consumption, |
Performance | |
Accuracy | ±0.5%FS |
Long-term stab. | ±0.25%FS/year |
Environmental | |
Temperature Ambient | Medium temperature:-40~100ºC LCD display:-30~70ºC Storage temperature:-30~70ºC |
Protection | IP68(Displacer part) IP65(Gauge part) |
Thermal Offset | |
Compensated Temp. | -10~70ºC |
Zero point | ±1.5%FS(reference 30ºC,within compensated temperature range) |
Full scale point | ±1.5%FS(reference 30ºC,within compensated temperature range) |
Electronic protection | |
Reverse polarity protection | No damage. The product will not work. |
EMC | Compliance EN 61326 |
Mechanical Stability | |
Vibration | 20g(20~5000Hz) |
Shock | 20g(11ms) |
Insulation | |
Insulation resistance | >100MΩ,500VDC |
Insulation voltage | 500VAC 50Hz voltage, no breakdown or arc within 1min |
Structure Drawings:



Electrical Connection:
Output signal | Four wires Modbus-RTU/RS485 | |||
Definition | Supply(+V) | Supply(-V) | RS485A | RS485B |
Battery compartment/ Terminal | Battery+ | Battery- | 485A | 485B |
Ordering Guide:
Code | Type | |||||||
HPM420L | Low power comsumption Level Transmitter | |||||||
Range | Note | |||||||
(0~X)mH2O (Ln) | X is the measurement range for level Ln is the length of the cable | |||||||
Code | Output signal | |||||||
B7 | RS485 | |||||||
Code | Material of Cable | |||||||
C2N | NBR/nitrile -butadiene rubber | |||||||
C2U | PU/polyurethane | |||||||
C2F | Fluoroplastic cable | |||||||
Code | Top cable fixing | |||||||
M30 | M30×1.5 | |||||||
G12 | G1/2 | |||||||
F20 | DN20 Flange | |||||||
Code | Pressure sensor | |||||||
M1 | Silicon Piezoresistive,316L | |||||||
Code | Measuring probe | |||||||
S4 | 304 | |||||||
S6 | 316L | |||||||
Code | Others | |||||||
VL36 | 3.6V lithium-ion battery(Default) | |||||||
V5 | 5V DC | |||||||
V24 | 24V DC | |||||||
QF | With factory test report | |||||||
Other customized requests | ||||||||
e.g. HPM420L | (0~1)mH2O (L2) | B7 | C2N | M30 | M1 | S4 | VL36 |
Related Products:




Certification:

FAQ:
1. Q: Are you manufacturer or trading company?
A: We are manufacturer which focuses on sensor for 10 years.
2. Q: What's your quality control system?
A: MC, ISO9001, CE Certificated.
3. Q: What is the warranty of your products?
A: Our warranty time is 18 months after shipment.
4. Q: What is lead time of your product?
A: Normally, our factory lead time is within 10~15 working days for products without customization. You can also check lead time detail with our sales depending on different items.5. Q: Do you provide customized products?
A: Yes, we can laser mark your logo on products; OEM and ODM customization are welcomed.6. Q: What is your MOQ?
A: We have no MOQ limit, small quantity order is acceptable.7. Q: What's the transport?
A: Express such as DHL, FedEx, TNT, UPS for freight prepaid; and we can also use your own courier account to do the freight collect. For more goods we can arrange by air or by Sea.8. Q: What is your terms of payment ?
A: We could accept T/T, Paypal, WU.
A: We could accept T/T, Paypal, WU.