Manufacturer: HAKARU PLUS CORPORATION
Model: DMXT

96 × 48, 5-Digit, Character Height 15mm, Input–BCD Output–Power Supply Isolation

Model

DMXT-(1)-(2)-(3)-(4)

(1) Power Supply

(2) Data Output 1

(3) Data Output 2

Note: Data Output 2 can be added only when Data Output 1 is 09 or 29.

(4) Comparison Output

How to Order Example

Model: DMXT-A-09
Special Specification:

Device Specifications

Display Section

Numeric range: 0 to 99999
Main display: Red LED or green LED, character height 15.2mm. Display color can be freely selected.
Sub display: 0 to 9999, red LED, character height 7.6mm
Input overrange for thermocouple input: The minimum or maximum value of the display range blinks when the display range is exceeded.
Input overrange for RTD input: The maximum value of the display range blinks.
Resolution: 0.1°C, 0.01°C for Pt100Ω [2]
°C/°F: Display can be switched between °C and °F.
°F display = °C display × 9 / 5 + 32.0
External resistance: Thermocouple input 500Ω or less, RTD input 5Ω or less per lead wire.

Hold

No isolation from input.
The display value, data output, current value, peak memory value, bottom memory value, fluctuation width, and comparison output are held. Active “L”.

Alarm Reset

No isolation from input.
The comparison output is restored. Active “L”.

Comparison output is used. Active “L”.
Sampling period: 200ms
Display period: 200ms, 400ms, 1s, 2s, 4s, or 5s selectable.

Average Calculation

The display value is interval averaged or moving averaged within the display period.

For moving average, the number of moving-average measurement data can be selected from 2, 4, 8, 16, or 32.
Response: The longer one between within 2 sampling cycles or within the display period.
Input type: Single-ended floating input
A/D conversion section: Sigma-delta conversion method
Unit seal: Included

Measurement Input

Thermocouple Input

RTD Input

Temperature coefficient: ±50ppm, ±100ppm for Pt100Ω [2].
Overload: DC10V

Analog Output Specifications

Allowable error: ±0.15%
Temperature coefficient: 200ppm/°C
Resolution: 1/10000
Output period: 200ms
Output response: Within 500ms for input.
0 to 90% response, when display period is 500ms and average calculation is not used.

BCD Output Specifications

TTL Level Output

Data output: Parallel BCD code, 1-2-4-8, latch output
TTL level: CMOS compatible, Fo = 2
Control output:

• Overrange (OVER): Logic “1” during overrange
• Polarity: Logic “1” during positive polarity
• Synchronization signal (SYNC): 10ms “L” pulse

Control input:

• Latch: Active “L”
• Memory function: Active “L”
• Data inhibit: Active “H”

Transistor Output

Output capacity: DC30V, 30mA max.
Data output: Parallel BCD code, 1-2-4-8, latch output
“1” output: Transistor ON
Control output:

• Overrange (OVER): Transistor ON during overrange
• Polarity: Transistor ON during positive polarity
• Synchronization signal (SYNC): 10ms ON

Control input:

• Latch: Active ON
• Memory function: Active ON
• Data inhibit: Active OFF

Serial Communication

RS-232C, RS-485
Transmission method: Asynchronous half-duplex method
Communication speed: 4800, 9600, 19200, 38400bps
Transmission code: Conforms to JIS 8-unit code
Data format:

• Data bit length: 7 bits or 8 bits
• Stop bit length: 2 bits or 1 bit
• Parity check: Even, odd, or none

Error detection: Vertical parity and BCC

Comparison Judgment Function

Comparison digits: 5 numeric digits, 1 polarity digit
Comparison target switching: Comparison judgment can be performed using one of the current value, peak memory value, bottom memory value, or fluctuation width data.
Comparison method: 4-point independent setting, CPU comparison judgment method
Setting method: Upper/lower limit setting method or zone setting method can be selected.
Upper/lower limit setting: 4-point independent setting, upper/lower limit optional setting, Hi, Lo, or OFF, equal judgment or unequal judgment switching included.
Zone setting: Judgment is performed for each section of the 4 independently set values.
Setting condition: AL4(HH) > AL3(H) > AL2(L) > AL1(LL)

Hysteresis function: Hysteresis width 1 to 999, 4-point independent setting. Disabled during zone judgment.
Comparison display: AL1 to AL4 red LED display

Comparison Output

Relay contact output:
AL1 to AL4, one contact each. Common is shared by AL1 and AL2, and shared by AL3 and AL4.
Go: 1c contact
Contact capacity: AC250V, 1A
Resistive load: DC30V, 1A
Open collector output, NPN:
AL1 to AL4, Go
Output rating: DC30V, 30mA max.
Output saturation voltage: DC1.6V or less
Output delay: ON delay 0 to 99 seconds, freely set in 1-second steps. Common setting for 4 points.
Alarm reset function: Restores the comparison output. No isolation from input.
Power-on delay: Comparison judgment output OFF for approx. 4 seconds after power is turned on and within the specified time.
Setting range: 4 to 99 seconds, freely set in 1-second steps.

Installation Specifications

Power supply: AC100 to 240V, 50/60Hz, DC12 to 24V, DC110V
Allowable power supply voltage range: AC90 to 250V, DC9 to 32V, DC100 to 170V
Power consumption:

Operating temperature range: 0 to 50°C
Storage temperature: -20 to 70°C
Mass: Approx. 300g
Protective structure: Front panel section equivalent to IP65

Performance

Noise rejection ratio: Normal mode 50dB or more, common mode 110dB or more, power line mixed noise 1000V.
Insulation resistance: DC500V, 100MΩ or more
Dielectric strength:

• Between input and external case: AC2000V for 1 minute
• Between power supply and external case: AC2000V for 1 minute
• Between input and output: AC1500V for 1 minute
• Between input and power supply: AC500V for 1 minute

Reference Accuracy: Thermocouple Input

Reference Accuracy: RTD Input

Connection Diagram

Option, Middle Section

Analog Output

Screwless terminal

BCD Output

RS-232C or RS-485

Screwless terminal

Analog Output + RS-232C or RS-485

Screwless terminal

Outline Drawing (Unit: mm)

Terminal Arrangement Diagram

Mounting Dimensions Drawing (Unit: mm)