4~20mA DC Accurate Analog Water Tank Liquids Stable Differential Pressure Transmitter (MDM490)

• Measuring Medium: Liquid
• Output Signal Type: Analog Output
• Production Process: SemiConductor Integrated
• Material: Stainless Steel
• Accuracy Grade: 0.25%Fs(Typ.)
• IP Rating: IP65
• Model NO.: MDM490
• Certification: ISO
• Customized: Customized
• Diaphragm: Ss316L
• Output Option: Ma or V
• Output: Analog
• Accuracy: 0.25%Fs
• Theory: Pizoresistive
• Static Pressure Impact: 0.05%Fs/100kpa
• Keywords: 4~20madc Pressure Transmitter
• Pressure Type: Differential Pressure
• Compensation Temperature: 0~50c
• Usage: Pressure Sensitive Sensor
• Transport Package: Standard Package for Exporting
• Specification: ISO: 9001: 2008; RoHS
• Trademark: Micro Sensor
• Origin: Baoji, China
• Production Capacity: 40, 000/Year

Product Description

  4~20mA DC Accurate Analog Water Tank Liquids Stable Differential Pressure Transmitter (MDM490)

Features:

    (1)    Full stainless steel construction, compact size, easy installation;
    (2)    Laser welding, full-sealed construction; Protection IP65;
    (3)    Using piezoresistive differential pressure sensor, 316L isolated diaphragm;
    (4)    Temperature compensation and aging, stable performance;
    (5)    Zero and span adjustable outside;
    (6)   Ex-proof version MDM490 conforms to GB3836.4 standard; Ex-proof certificate is approved;
    (7)   CCS, CE and ROHS certificates

Description:
MDM490 differential pressure transmitter uses piezoresistive differential pressure sensor as sensing element. Silicon oil is filled in between die and two diaphragms, when measured differential pressure is added on two diaphragm, the pressure could be transferred onto die through silicon oil.

Sensor die connects with amplifier circuit through wires, using semi-conductor's piezoresistive effect, transforming differential pressure signal into electric signal. The whole differential pressure tranmitter is used for differential pressure measurement of petroleum, chemi-industry, power station and hydrology, etc.

Specifications:

Range code	0A	02	03	07	08	09	10	12	13
Unit	kPa						MPa
Measure range	0~35	0~70	0~100	0~200	0~350	0~700	0~1	0~2	0~3.5
+orvepressure	70	150	200	400	700	1400	2.0	4.0	7.0
-overpressure	35	70	100	200	350	700	1.0	1.0	1.0
Max.static pressure	≤20MPa

 

		Min.	Typ.	Max.	Unit
Accuracy	0~100kPa		0.25	0.5	%FS
	200~3500kPa		0.25	0.5
Zero Thermal error	0~100kPa		0.75	1.25	±%FS, @25ºC
	200~3500kPa		0.5	0.75
FS Thermal error	0~100kPa		0.75	1.25
	200~3500kPa		0.5	0.75
Stability	≤200kPa	0.5			%FS/year
	≤3500kPa	0.2
Static pressure effect		0.05			±%FS, each 100kPa
Compensation temp.		0~50			ºC
Operation temp.		-10~80
Storage temp.		-40~120

 
Electric performance:
      1. Power supply: 2-wire  15~28VDC      3-wire 15~28VDC 
      2. Output signal: 2-wire  4~20m ADC    3-wire  0/1~5VDC 0·10.20m ADC
      3. Pressure connection: G1/4 female thread
      4. Electric connection: plug, 7.2mm cable
      5. Respond time (10%~90%):  ≤1ms
      6. Insulation resistor:  100MΩ,50VDC

Outline Construction:

 
Order Guide:

MDM490

Piezoresistive Differential Pressure Transmitter

Code

Pressure range: kPa or MPa

X[0~X] kPa or MPa

Code

Pressure range kPa

overpressurekPa

Code

Pressure Range   MPa

Overpressure MPa

+

-

+

-

0A

0~35

70

35

09

0~0.7

1.4

0.7

02

0~70

150

70

10

0~1.0

2.0

1.0

03

0~100

200

100

12

0~2.0

4.0

1.0

07

0~200

400

200

13

0~3.5

7.0

1.0

08

0~350

700

350

Code

Output signal

E

4~20mADC

F

1~5VDC

J

0~5VDC

Q

0~10mADC

U

0~20mADC

V

0~10VDC

Code

Construction material

Diaphragm

Pressure port

Housing

22

SS 316L

SS

SS

24

SS 316L

SS 316L

SS 316L

Code

Others

C4

G1/4 female

B1

Plug connection

B2

Cable connection    Default length: 1.5m

M3

31/2LCD digital indicator(only 4~20mADC)

M4

31/2LED digital indicator (only 4~20mADC)

i

Intrinsic safe version ExiaIICT6(>35kPa) /ExiaIIBT6Ga(<=35kPa)

T

Ship-use

MDM490  [0~100]kPa    E         22       C4B2     the whole spec

Certificates We Have




Company Overview



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FAQ:
1. Q: Are you manufacturer or trading company?
    A: We are 48-year professional manufacturer of Pressure/ Level/ Temperature/Flow transmitters with 4~20mA, Hart, Rs485 & Modbus protocols, pressure sensors with SDI, I2C, 4~20mA, 0.5~4.5V and etc, and wireless IOT measurement transmitters. We provide high quality products with high competitive factory price.
 
2. Q: What's your quality control system?
    A: As an ISO9001:2008 certificated manufacturer, we have strict quality control system, and each product is done fatigue testing, calibration, temperature compensation before shipment. High quality is guaranteed.
 
3. Q: Is there MOQ with your product?
    A: We have no MOQ limits, 1pc for testing is acceptable.
 
4. Q: Do you provide customized products?
    A: Yes, we can print your logo on our products; OEM, ODM & customization are welcomed.
 
5. Q: What is the warranty of your products? And after-sales service?
    A: Our warranty time is 12 months after shipment, and our after-sales will respond with your questions in 24hrs, remote instruction by PC network is always available.
 
6. Q: What is lead time of your product?
    A: We are factory, our lead time is always within 10~15 working days for products without customization, but lead time will vary based on different products. You can check detail lead time with our sales.

7. Q: What international certificates do you have for your products?
    A: we have CE, RoHS, UL, ATEX as well as ship-use DNV etc.