JT2088 Diezoresistive Intelligent Pressure Circuit
BoardJT2088 Diezoresistive Intelligent Circuit Board
replaced the original 4~20mA analog board. With the main body of
Microcontrollers CPU, JT2088 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. JT2088 supports standard diffused silicon,
strain gauge,piezoresistive ceramic pressure sensors. It is suited
for 2088 housing.Features - Intelligent Pressure Circuit
Board 1.Two wires working mode provides sensors with two
exciting ways - constant current and constant voltage.2.
Calibrating as per full scale realizes bulk production3.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 source7.Small signal
wiping off and reset function8.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- Intelligent Pressure Circuit
Board Supply powerDC12-32V (DC 24V is suggested)Constant
current excitation0.4mA(suitable for diffused silicon, strain gauge
sensors)Constant voltage excitation2.5VDC(suitable for
piezoresistive ceramic pressure sensors)Sampling
rate20~30times/sDisplaying and bitsLCD with backlight, displaying 5
bits, and 4 decimal placesDisplaying units Ten displaying units as
KPa, Pa, MPa, mmH2O, mH2O, mbar, bar, PSI, M,%Output
resolution1uATemp. compensation accuracy-30~70ºC complete machine
accuracy is better than 0.5% (including accuracy of
sensor)Linearity accuracyComplete machine linearity is better than
0.2% (Multi-point calibrating is available as
required)Stability0.2%/YearRange ratio10:01Circuit protection
Measurement surge current protection, reverse power
protectionCircuit design Intrinsic safetyIsolation
range>200MCommunication ProtocolPrivate protocolAdjusting
methodby buttons on LCD head or program on pcDimensions OD=52mm,
Mounting hole pitch=44mm (suited for pressure and level transmitter
in 2088 housing)Motherboard buttons operationreset, lower range
calibration(zero drift under pressure source), upper range
calibration (full scale calibration)LCD head buttons
operationchanging span units, decimal place, output features,
changing damping time, currant fixing, write-protection,factory
reset and zero clearing FAQ Q: Are you trading
company or manufacturer ?A: We are a manufacturer since the year
2004, committed to producing high accuracy, long-term stability,
cost-efficient pressure/level/temperature measuring instruments.Q:
What's your quality control system?A: Our factory is cerrified
under ISO 9001-2015. All products are completed with temperature
compensation and 48 hours aging test before shipment.Q: What is the
warranty of your products?A: 12 month from shipment date, for
non-man-made damages.Q: Shipping and DeliveryA: Small orders are
delivered with DHL, Fedex, TNT, UPS , with delivery time in 4 - 5
business days.Large orders are recommended to ship by seaIf you
have another question, pls feel free to contact us as below
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