Single Crystal Silicon Wafer Pressures Liquid Level Sensors, Diffusion of a Ceramic Diaphragm Industrial Pressure-liquid Level Transmitter with LCD
$256.54
SKU: EB-M1407148
Copy to clipboard
80 Sales
0 reviews
In Stock Availability
Bulk Purchase, Auto Savings:
$243.71
10-19 PCS
$219.34
20-99 PCS
$175.47
100+ PCS
Deliver to United States
Flat Shipping Rate $10.00
Mobile
- Description
Specification
| Working temperature of transmitter circuit: | - 40 °C~+60C, 0% RH~80% RH |
| Working temperature of probe: | - 40 °C~+120 °C, default: - 40 °C~+80 °C |
| Working humidity of probe: | 0% RH-100% RH |
| Humidity display resolution: | 0.1% RH |
| Temperature display resolution: | 0.1 °C |
| Long term stability Humidity: | ≤ 1% RH/y |
| Long term stability temperature: | ≤ 0.1 ° C/y |
| Humidity response time: | ≤ 8s (1m/s wind speed) |
| Temperature response time: | ≤ 15 (1m/s wind speed) |
| Output signal: | Current output: 4~20mA |
| Voltage output:0~5V/0~10V | |
| Load capacity: | Voltage output: ≤ 250 Ω |
| Current output : ≤ 600 Ω | |
| Refresh time: | 1s |
Feature
Pressure / level transmitter
description
I、Product Overview
The industrial pressure-liquid level transmitter adopts advanced Silicon piezoelectric pressure sensors and imported Silicon piezorescent sensors and imported ceramic capacitors as signal measurement elements.
Combined with German digital AD acquisition technology, it has intelligent circuits and ordinary digital circuits. It has high precision and high stability.
The interior has perfect anti-interference devices and multi-stage protection circuits, high integration, anti-interference design, and hardware and software watchdog.
Standard 24VDC power supply 4 to 20MA output function and RS485 communication function(Porter rate optional), optional LED and LCD field instructions,
fully functional three-button on-site debugging range migration, zero calibration and unique reversal function, Among them, LCD can achieve a variety of unit choices,
with white backlight, industrial pressures/liquid level transmitters are suitable for many industrial sites and dangerous high explosion sites,
and traditional industrial pressures/liquid level transmitters can not be on-site instructions. Limited use of the site, An ideal upgrade product with poor stability.
This series of products can be widely used in process control, liquid level measurement, boiler control, environmental control, metallurgical industry, petrochemical, hydraulic power, pharmaceutical and food industries.
II、operating principle
The pressures/liquid level sensor is a Whistler bridge or closed bridge on a single crystal silicon wafer or on the diffusion of a ceramic diaphragm.
The voltage resistance effect changes the resistance values of the four bridge walls and produces a differential voltage signal.
This signal is amplified by a dedicated transport amplifier, and then sent by voltage/current transformation to correspond to the range.
III、Maintechnical performance
Range of measurement: -0.1 ... 0 ~ 0.01 ... 100 MPa
Overload: 2 times full
Pressure / level type: gauge pressure or adiabatic pressure or sealing table pressure type
Precision: ± 0.25 % FS(typical)
Stability: ± 0.1 % FS / year(typical), ± 0.2 % FS / year(maximum)
Zero drift: ± 0.03 % FS / °C(≤ 100kPa), ± 0.02 % FS / °C(> 100kPa)
Full drift: ± 0.03 % FS / °C(≤ 100kPa), ± 0.02 % FS / °C(> 100kPa)
Medium temperature: -40 °C ~ 85 °C(diffused Silicon), -40 ~ 135 °C(ceramic resistance, ceramic capacitance)
Storage temperature: -40 °C ~ 120 °C
Power supply: 10 ~ 36 VDC(recommended 24VDC Benan type through the security grid)
Output signal: 4 to 20 mADC, 0/1 to 5/10 VDC(non-standard customization)
Communication Protocol: Standard MODBUS RTU
Communication Datagram format: 4 types of N, 8, 1/E, 8, 1/O, 8, 1/N, 8, 2
Power consumption: Less than 0.4 W(including LED display)
Load resistance: ≤(U-15) / 0.02 Ω, ≤(U-15) / 0.02 Ω, > 5K
Process connection: M20 × 1.5 external threads; M27 × 2 external threads; Clamp connection(other customizable)
Shell Protection: Both cable and plug-in connections are IP65
Stability: ≤ 0.2 % FS / year
IV、On-site key operation guide
Summary
1、
Save and Exit: On the END menu, press M to exit setting mode and save data. Under the other menu,
- Long press M will exit setting mode, but data will not be saved.
- digital modification: After entering the menu, in the menu with data settings, press the S key to add 0-9 cycle.
3.ting-1-9 cumulative setting
4.LED on-site operation instructions
1.1.1 Function key "M"
Press the M key in measurement mode to enter the password setting.
In the
1.1.2 Zero key "Z"
Press the Z key to return to the previous menu in the
1.1.3 Full key "S"
Press the S key to return to the next menu in the
| Menu isplay | function | content | M ey | Z key | S key |
| LOCY | password | password：0001 | Exit(Save) | Enter(shift value) | increase |
| 1U—L | Lower Range | Enter or Exit(Save) | Shift value |
Increase in value |
|
| 1U—H | Lower Range |
Enter or Exit(Save) | Shift value |
Increase in value |
|
| SPRN | Show magnification factor | Enter or Exit(Save) | reduce | increase |
|
| —DP— | decimal point | Enter or Exit(Save) | reduce | increase |
|
| F1LT | Filter coefficient | Enter or Exit(Save) | reduce | increase |
|
| CLER | Zero Migration |
Enter or Exit(Save) | reduce | increase |
|
| END | End(Save) |
Enter or Exit(Save) |
Function Key 'M'
Press the M key in measurement mode to enter the password setting.
In the measurement mode, the length is zero for the entry of the main variable in 5 seconds(click YES to select YES, and click M to save PV zero).
In the
After modifying the parameter, press the M key again to confirm the parameter modification and exit into the setting mode.
1.1.4 Zero key “K”
In measurement mode, the short press modifies the function for display mode.
In the measurement mode, long press Z key 5 seconds to enter the zeroing function(ie, calibrate the transmitter zero point).
Press the Z key to return to the next menu in the set mode. After entering the modified menu, press the Z key to shift and reduce, and move continuously on a long time basis.
1.1.5 Full key “S”
In measurement mode, the short press modifies the function for display mode.
In the measurement mode, press the S key for 5 seconds to enter the full adjustment function(ie, calibrate the full point of the transmitter).
Press the S key to return to the previous menu in the
| Menu Display |
function | content |
M key |
Z key | S key |
| 00000 | passwor | passwor： 00001 |
enter | Shift value | Increase in value |
| Unt | Primary variable unit |
MPa KPa Pa, Bar Mbar PSI mH2O mmH2 InH2O ftH2O mHg mmHg InHg Kg/cm2 Atm Torr M Cm mm |
Enter or Exit(Save) | reduce |
increase |
| dot | Set the number of decimal points to display variable 1 |
0 1 2 3 4 |
Enter or Exit(Save) | reduce | increase |
| SHO | install Show variables |
-PV-(master variable) -mA-(current) -%-(percentage) PV-mA(main variable and current alternating display) PV-%(principal variable alternating with 100 %) MA -- %(current alternating with 100 %) |
Enter or Exit(Save) | reduce | increase |
| End | End | Enter or Exit(Save) | |||
| 00000 | passwor | passwor：00016 | Enter | Shift |
Increase in value |
| F1L | Filter coefficient |
0(LOW filter low) 1(MId filter) 2(Higlvbo) |
Enter or Exit(Save) | reduce | increase |
| bSL | Lower Range |
Enter or Exit(Save) | Shift |
Increase in value |
|
| bSH | Range upper limit | Enter or Exit(Save) | Shift |
Increase in value |
|
| SoL | Zero current |
L-OUT(zero factory setting value) L-D/A(fine zero) alternately displayed |
Enter or Exit(Save) | Shift |
Increase in value |
| SoH | Full charge | H-OUT(full factory settings) H-D/A(full point fine-tuning value) |
Enter or Exit(Save) | Shift |
Increase in value |
| ZrO | Small signal removal |
% of zero and full |
Enter or Exit(Save) | Shift |
Increase in value |
| dAL | Alarm Tips | 0(off) 1(open) Note: 25 % below and 25 % above the limit of the range |
Enter or Exit(Save) | reduce | increase |
| OFS | Offset Settings | Shows offset settings for the output. Note: Default 0 |
Enter or Exit(Save) | Shift |
Increase in value |
| COE | Sensor offset correction | The zero error of the transmitter should first be corrected by the primary variable zero(PV zero) function to ensure that the sensitivity correction and subsequent transmission is linear and normal. The default value of this menu is "1.0000". For example, the range of transmitter calibration is from 0.00000 to 20.000 MPa. After a period of time, the zero point becomes "0.0100 MPa" and the full point becomes "20.110 MPa". At this time, the zero point and sensitivity of the transmitter have changed. When correcting it, the zero error of the main variable should be cleared by using the zero function of the main variable. After the zero variable is cleared, the zero point of the transmitter is "0.0000 MPa" and the full point is "20.100 MPa". Then calculate the theoretical full point divided by the actual full point value to correct its sensitivity, IE 20.000 MPa/20 .100 MPa = 0.9950, and modify the sensor sensitivity correction coefficient to "0.9945" to correct the sensitivity change. |
|||
| rSt | Recovery of ex-factory data |
0(off) 1(open) | Enter or Exit(Save) | reduce | increase |
Instructions for the use of explosion-proof transmitters and precautions for installation and use
1. Type and mark of explosion
The two types of separate explosion type and essential safety type of the converter are inspected by the state-designated explosion proof quality inspection authority and obtained an explosion proof certificate.
A, explosion proof type: Exd IICT6 certificate number CNEx03.1088; B, essential safety type: Exia IICT6 certificate number CNEx03.821; CNEx03.822
2. Explosion-proof electrical equipment for explosive environment: type, level and temperature level
Category A: Electrical equipment for underground use in coal mines; Category II: Electrical equipment for plants other than coal mines.
The transmitter belongs to Category II electrical equipment.
Level B and Temperature Group
Ratio of MESG for maximum test safety gap for explosive gas mixture to MIC for minimum ignition current(for essential safety type)
Divided into three levels A, B, and C(see table 1-1) and divided into T1 to T6 groups according to their maximum surface temperature(see table 1-2).
Table 1-1MICR Classification
| 级别 | MESG（mm） | MIC |
| ⅡA | MESG＞0.9 | MIC＞0.8 |
| ⅡB | 0.9≥MESG≥0.5 | 0.8≥MIC≥0.45 |
| ⅡC | 0.5＞MESG | 0.45＞MIC |
Table 1-2 Allow electrical surface temperature grouping table
| Temperature group | T1 | T2 | T3 | T4 | T5 | T6 |
| Maximum surface temperature allowed （℃） |
450 | 300 | 200 | 135 | 100 | 85 |
When an explosive type transmitter is used in a dangerous place, the lid of the transmitter must be tightened.
To ensure the safety of use, safety procedures should be strictly followed. Never open the lid of the transmitter when energized.
When installing the explosion proof transmitter, the lead exit of the cable should be well sealed. The transmitter housing must be well grounded.
An essential safety transmitter must be equipped with a security grate to be used at a hazardous site with an explosive mixture.
The safety grille shall conform to the provisions of GB3836.4 -2000, Part 4 of the Essential Safety Type I of Electrical Equipment for Explosive Gas Environment,
and shall be tested and certified by the relevant explosion protection department.
Installation shall be in accordance with the requirements of its instruction manual. The system wiring is shown in Figure 6-1.
Exia ⅡCT6
Ui，Ii，Pi，Ci，Li
Uo，Io，Po，Co，Lo
Ui=28VDC，Ii=30mADC，Pi=0.84w，Ci=0.04uF，Li=0.1mH，Um=250VDC
Uo≤Ui，Io≤Ii，Po≤Pi，Co=Ci+Cp，Lo＝Lp+Li
Symbol meaning GB3836.4-2000
VI、Electrical connections
1、 4 ~ 20mA two-line output:：
③：24V＋
②：4-20mA signal
2、4 ~ 20mA four-wire output：
①：24V＋
②：24V－
③：4-20mA signal＋
④：4-20mA signal－
3、RS485 output：
①：RS485 A
②：24V－
③：24V﹢
④：RS485 B
VII、
③：24V＋
②：4-20mA signal
2、4 ~ 20mA four-wire output：
①：24V＋
②：24V－
③：4-20mA signal＋
④：4-20mA signal－
3、RS485 output：
①：RS485 A
②：24V－
③：24V﹢
④：RS485 B
VII、
Installation Method
VIII、Installation usage and installation precautions
(1) Care should be taken when handling and installing the transmitter to avoid damage to the components and affect the performance of the circuit.
(2) Select places that are easy to operate and maintain for installation;
(3) Should be as far away from vibration source installation as possible;
(4) Places where heat sources should be kept as far away as possible;
(5) It is best to connect with the measurement pipeline through the valve;
(6) Please strictly follow the wiring method. The wiring error will cause damage to the amplifier circuit.
(7) If you encounter problems in the installation and use of the product, please contact our company. When the product is abnormal, please do not open it for repair without authorization.
Applications
- Reviews (0)
-
comment
- Q & A
-
: Where is the origin of Elecbee products? Are they certificated?2023-03-03
-
Answer:
Elecbee has long-term cooperation agreements with the OEM factories in China. So that we are able to reduce the intermediate channel cost, and help you save money. Our products are all made strictly according to the relative global standard, to ensure the products have good compatibility and excellent quality.
2023-03-03
-
: What forms of payment do you accept?2023-03-03
-
Answer:
Our main payment methods include Paypal, Credit Cards, Debit Cards, Bank Transfer, and more to discover. Please choose the payment methods in your favor.
2023-03-03
-
: When will you arrange shipment?2023-03-03
-
Answer:
After confirming receipt of your payment. We will arrange the delivery as soon as possible and upload the courier number to the website for you to track.
2023-03-03
-
: How to exchange or return?2023-03-03
-
Answer:
1. You can apply to return within 30 days after receipt of the goods. Please make sure the outside package is intact, and the product is in its original condition. We will arrange your refund according to the relevant provisions once the package is received.
2. Return process: You Apply for a Return - Approve the Return - Arrange a Return - Receive the Products and make Inspection - We arrange a Refund;
3. We will bear the freight charges for returns caused by us, for instance, the quality problem. As to returns caused by the buyer, the buyer should be responsible for the shipping fee.
2023-03-03