Description LCD dual-loop pressure temperature controller liquid
level monitor
Dual-loop series display controller is suitable for various
temperature, pressure, liquid level, length and other measurement
and control. The use of microprocessors for digital operation
enables highly accurate linear correction of various nonlinear
signals.
Dual-loop series light display controller integrates digital
measurement display and analog measurement display. Digital LED
display can accurately display and control real-time measurement
values. At the same time, it adopts high-precision 40-line light
column display to display real-time measurement values clearly and
intuitively. Compare with other measurement parameters for
convenience and intuition.
The dual-loop serial display controller opens the setting interface
of the internal parameters of the instrument (including input type,
calculation method, output parameters, communication parameters,
etc.) to the user.
Double loop series display controller can switch input a variety of
indexing numbers. With advanced non- jumper technology, you do not
need to change jumpers or switches when changing the input division
number. The entire instrument modification process does not need to
be powered off. Only the instrument's index number and related
parameters need to be set, and the input of the index number can be
changed online.
Dual loop series display controller supports multi-machine
communication, with a variety of standard serial two-way
communication functions, you can choose a variety of communication
methods (such as RS-232C, RS-485, RS-422, etc.), communication baud
rate 300 ~9600bps meter internal parameters freely set. It can
communicate with various devices with serial input and output (such
as computers, programmable controllers, PLCs, etc.) to form an
intelligent management system.
Equipped with a series of data collectors and all Chinese
industrial control configuration software based on WINDOWS’9X
platform, it is convenient to realize the networking management of
multiple meters and upper computers.
Detailed Images LCD dual-loop pressure temperature controller liquid level monitor
Specification LCD dual-loop pressure temperature controller liquid level monitor
Input signal analog :
Resistance - - standard thermal resistance - -Pt100 Cu50 and other
remote pressure resistance Resistors - - standard thermocouple -
-B, S, K, E, J, T, WRe and other Current - -0 ~ 10mA, 4 to
20mA, 0 to 20mA, etc. - - Input resistance
Resistance ≤ 250Ω
Voltage - -0 ~ 5V, 1 ~ 5V, etc. - - Input impedance ≥ 250Ω
Measuring range:-1999~9999 words
Measurement accuracy:0.2%FS±1 word or 0.5% FS±1 word Resolution
temperature :1, 0.1, 0.01, or 0.001 words Compensation :0~50
Display·
-1999~9999 measured value display · -1999~9999 set value display
·0~100% measured light bar display · LED working status display
Light column accuracy : 1%
Control mode :Bit ON/OFF With return difference Output signal
Analog output
DC0 ~ 10mA (load capacity ≤ 750Ω) DC4 ~ 20mA (load capacity ≤ 500Ω)
DC0 ~ 5V (load capacity ≤ 250Ω) DC1 ~ 5V (load capacity ≤ 250Ω)
Digital Output
Relay Control Output - - Relay ON/OFF With return difference
Contact capacity: AC220V/3A; DC24V/6A (resistive load)
Thyristor control output - - SCR (thyristor zero-crossing trigger
pulse) Output, thyristor can be triggered: 400V/100A
Solid State Relay Output - - SSR (Solid State Relay Control Signal)
Output, 6 to 24/30mA (voltage not adjustable)
Communication Output
Interface Mode - - Standard Serial Bidirectional Communication
Interface: RS-485,RS-232C, RS- 422, etc.
Po Rate - -300 to 9600bps Internal free setting Feed output:DC24V,
load capacity ≤30mA
control method:Select 1 to 4 limit control, LED indication. The
control mode is relay ON/OFF with hysteresis (user can set freely)
Control precision:±1 word
Alarm mode Select 1~4 limit alarm, LED indication. The control mode
is relay ON/OFF with hysteresis (user can set freely)
Alarm accuracy: ±1 word
Temperature compensation: 0~50°C Digital temperature automatic
compensation Parameter setting
·Panel touch button digital setting · Parameter setting value is
kept permanently ·Parameter setting password lock
Protection method:
·Input circuit break alarm (when thermocouple or resistance input),
relay output, LED indication
·Input over/under range alarm · Power undervoltage reset
automatically
·Work Abnormal Automatic Reset (Watch dog)
Online communication The communication protocol is two-wire,
three-wire or four-wire (such as RS-485, RS-232C
| Item | Details |
| Indicator light | AH1 Indicator light( Red) | Lights up when the first upper limit alarm is ON |
| AL1 Indicator light( Green) | Lights up when the first upper limit alarm is ON |
| AH2 Indicator light( Red) | Lights up when the second lower limit alarm is ON |
| AL1 Indicator light( Green) |
Lights up when the second lower limit alarm is ON |
Features LCD dual-loop pressure temperature controller liquid level monitor
The new concept of computer digital automatic adjustment
·Measurement value zero point migration function ·Gain value
amplification function
·Cold junction compensation value zero migration function · Cold
junction compensation value gain amplification function
·Transmitting output value zero shift function · Transmitting
output value gain amplification function Clear and clear
measurement display
·High-definition LED quantity display measurement value
·High-brightness light column measurement value display
Support multi-machine network communication, communication protocol
can be freely set Unique full open user self setting interface
·Input signal type setting · Zero point and range setting of
measured value
·Alarm mode setting · Output mode setting
Set parameters for permanent power off and parameter password lock
Full digital cold junction compensation
·Optional internal cold junction compensation
. Optional external cold junction compensation (suitable for
high-precision measurement occasions)
·Multi-size outline structure size · AC and DC switching power
supply
Selection Guide LCD dual-loop pressure temperature controller liquid level monitor
