Smart 2088 4-20mA Diezoresistive Silicon Pressure Transmitter PCB Module with LCD Display

• Customization: Available
• Type: Differential Pressure Transmitter
• Structure Type: Capacitive Pressure Transmitter
• Model NO.: JT2088L
• Measuring Medium: Gas, Steam, Liquid
• Accuracy Grade: 0.2G
• Pressure range: -100kpa~60MPa
• IP Rating: IP65
• Certification: ISO
• Customized: Customized
• Power Supply: DC12-32V
• Mounting Hole Pitch: 55.14mm
• Dimension: Diameter=61mm
• Measuring Pressure: Gp, Dp, Micro Dp
• Operating Temperature: -30°c ~ +70°c
• Transmitters Matching: Diffused Silicon, Strain Gauge, Level Pressure Tra
• Sampling Rate: >20 Times/Second
• Warranty: 1 Year
• Transport Package: Paper Carton and as Customer′s Requirement
• Specification: LCD display
• Trademark: WNK
• Origin: Hefei, Anhui Province, China
• HS Code: 902690000

Product Description

JT2088L, Diezoresistive Silicon Intelligent Circuit Board

Introduction:
JT2088L Diezoresistive Silicon Intelligent Circuit Board replaced the original 4~20mA analog board. With the main body of Microcontrollers CPU, JT2088L is capable to do logical operation and programming. It combines analog and digital circuit in one machine, so is able to output analog signal as well as digital signal. Parameters configuration and compensation of transmitters can be done by buttons on LCD module and internal debugging program. JT2088L supports standard diffused silicon, strain gauge,piezoresistive ceramic pressure sensors. It is suited for JT2088L housing.

Features:

1.Two wires working mode provides sensors with two exciting ways - constant current and constant voltage.

2. Calibrating as per full scale realizes bulk production

3.Easy to do temperature compensation, under -20~70ºC the complete machine accuracy better than 0.5% (including accuracy of sensors)

4.Three points calibrating, complete machine accuracy better than 0.2%. Multi-point calibrating is available as required.

5.AD accuracy > 20 bits, DA accuracy > 16 bits;

6.span can be changed on-site by LCD module buttons without standard pressure source

7.Small signal wiping off and reset function

8.LCD head is available to use once connected with sensor, free from calibration. And the head is dismountable, customers could equip LCD indicator or not.


Technical parameters:

Supply power	DC9-32V (DC 24V is suggested)
Constant current excitation	0.4mA(suitable for diffused silicon, strain gauge sensors)
Constant voltage excitation	2.5VDC(suitable for piezoresistive ceramic pressure sensors)
Sampling rate	20~30times/s
Displaying and bits	LCD with backlight, displaying 5 bits, and 4 decimal places
Displaying units	Ten displaying units as KPa, Pa, MPa, mmH2O, mH2O, mbar, bar, PSI, M,%
Output resolution	1uA
Temp. compensation accuracy	-20~70ºC complete machine accuracy is better than 0.5% (including accuracy of sensor)
Linearity accuracy	Complete machine linearity is better than 0.2% (Multi-point calibrating is available as required)
Stability	0.2%/Year
Range ratio	0.417361111
Circuit protection Measurement	surge current protection, reverse power protection
Circuit design	Intrinsic safety
Isolation range	>200MΩ
Communication Protocol	Private protocol
Adjusting method	by buttons on LCD head or program on pc
Dimensions	OD=52.4mm, Mounting hole pitch=44mm (suited for pressure and level transmitter in JT2088L housing)
Motherboard buttons operation	reset, lower range calibration(zero drift under pressure source), upper range calibration (full scale calibration)
LCD head buttons operation	changing span units, decimal place, output features, changing damping time, currant fixing, write-protection,factory reset and zero clearing

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