Hakaru
Hakaru DPXT Digital Panel Meter Thermometer

Manufacturer: HAKARU PLUS CORPORATION
Model: DPXT
96 × 48, 5-Digit, Character Height 15mm
Model
DPXT-(1)-(2)-(3)
(1) Power Supply
| Code | Description |
|---|---|
| A | AC100 to 240V |
| B | DC12 to 24V |
| C | DC110V |
(2) Data Output 1
| Code | Description |
|---|---|
| No code | None |
| 09 | DC1 to 5V |
| 29 | DC4 to 20mA |
| BP | BCD output, TTL level, positive logic |
| BN | BCD output, TTL level, negative logic |
| DP | BCD output, transistor output, source type |
| DN | BCD output, transistor output, sink type |
| E0 | RS-232C |
| E1 | RS-485 |
(3) Data Output 2
| Code | Description |
|---|---|
| No code | None |
| E0 | RS-232C |
| E1 | RS-485 |
Note: Data Output 2 can be added only when Data Output 1 is 09 or 29.
How to Order Example
Model: DPXT-A-09-E0
Special Specification:
Device Specifications
Display Section
Numeric range: 0 to 99999
Display element: Red LED or green LED, digit height 15.2mm. Display color can be freely selected.
Input overrange: When the display range is exceeded, the minimum or maximum value of the display range blinks.
Overrange Display
Thermocouple input: The minimum or maximum value of the display range blinks.
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
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. Comparison output is restored. 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.
| Display Period | Number of Measurement Data for Averaging |
|---|---|
| 200ms | No averaging |
| 400ms | 2 |
| 1s | 5 |
| 2s | 10 |
| 4s | 20 |
| 5s | 25 |
For moving average, the display period is fixed at 200ms.
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
| Measurement Range | Display Range |
|---|---|
| R : 100.0 to 1700.0°C | -50.0 to 1800.0°C |
| K : -100.0 to 1300.0°C | -200.0 to 1400.0°C |
| E : -130.0 to 1000.0°C | -250.0 to 1050.0°C |
| J : -140.0 to 1200.0°C | -210.0 to 1250.0°C |
| T : -200.0 to 400.0°C | -250.0 to 420.0°C |
| B : 600.0 to 1800.0°C | -20.0 to 1820.0°C |
| N : -100.0 to 1300.0°C | -230.0 to 1350.0°C |
RTD Input
| Measurement Range | Display Range |
|---|---|
| Pt100Ω [1] : -200.0 to 850.0°C | -200.0 to 870.0°C |
| Pt100Ω [2] : -150.00 to 150.00°C | -180.00 to 180.00°C |
| JPt100Ω : -200.0 to 645.0°C | -200.0 to 660.0°C |
Temperature coefficient: ±50ppm, ±100ppm for Pt100Ω [2].
Overload: DC±10V
Analog Output Specifications
Allowable error: ±0.15%
Temperature coefficient: 200ppm/°C
Resolution: 1/10000
Output period: 200ms
Output response: Within 500ms for input
| Output Range | Output Impedance | Allowable Load Resistance |
|---|---|---|
| DC1 to 5V | 0.1Ω or less | 500Ω or more |
| DC4 to 20mA | 5MΩ or more | 0 to 600Ω |
BCD Output Specifications
TTL Level Output
Data output: Parallel BCD code, 1-2-4-8, latch output
TTL level: C-MOS compatible, Fo = 2
Control output:
Overrange (OVER): Logic “1” during overrange
Polarity (POL): Logic “1” during positive polarity
Synchronous 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 (POL): Transistor ON during positive polarity
Synchronous 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
Installation Specifications
Power supply: AC100 to 240V, 50/60Hz, DC12 to 24V
Allowable power supply range: AC90 to 250V, DC9 to 32V
Power consumption:
| Power Supply | Power Consumption |
|---|---|
| AC100V | Approx. 7VA |
| AC200V | Approx. 9VA |
| DC12V | Approx. 300mA |
| DC24V | Approx. 150mA |
Operating temperature range: 0 to 50°C
Storage temperature: -20 to 70°C
Dimensions: W96 × H48 × D90
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 power supply and external case: AC2000V for 1 minute
Between input and output: AC500V for 1 minute
Between input and external case: AC2000V for 1 minute
Between input/output and power supply: AC1500V for 1 minute
Reference Accuracy: Thermocouple Input
| Measurement Range | Accuracy |
|---|---|
| R : 100.0 to 1700.0°C | ±(0.1% + 0.6°C) [100.0 to 500.0°C] |
| ±(0.1% + 0.5°C) [500.0 to 1700.0°C] | |
| K : -100.0 to 1300.0°C | ±(0.1% + 0.6°C) [-100.0 to 0.0°C] |
| ±(0.1% + 0.5°C) [0.0 to 1300.0°C] | |
| E : -130.0 to 1000.0°C | ±(0.1% + 0.5°C) |
| J : -140.0 to 1200.0°C | ±(0.1% + 0.5°C) |
| T : -200.0 to 400.0°C | ±(0.1% + 0.5°C) |
| B : 600.0 to 1800.0°C | ±(0.1% + 0.6°C) |
| N : -100.0 to 1300.0°C | ±(0.1% + 0.5°C) |
Reference Accuracy: RTD Input
| Measurement Range | Accuracy |
|---|---|
| Pt100Ω [1] : -200.0 to 850.0°C | ±(0.1% + 0.2°C) [0.0 to 100.0°C] |
| ±(0.2% + 0.3°C) [-200.0 to 0.0°C] [100.0 to 850.0°C] | |
| Pt100Ω [2] : -150.00 to 150.00°C | ±(0.1% + 0.2°C) [0.0 to 100.0°C] |
| ±(0.2% + 0.3°C) [-150.0 to 0.0°C] [100.0 to 150.0°C] | |
| JPt100Ω : -200.0 to 645.0°C | ±(0.1% + 0.2°C) [0.0 to 100.0°C] |
| ±(0.2% + 0.3°C) [-200.0 to 0.0°C] [100.0 to 645.0°C] |
Connection Diagram
Lower Terminals
Option, Middle Section
Analog Output
Screwless terminal
| C1 | C12 |
|---|---|
| + OUT | − OUT |
BCD Output
| Use | Bit | Pin No. | Pin No. | Bit | Use |
|---|---|---|---|---|---|
| 10¹ | 1 | 1 | 2 | 1 | 10⁰ |
| 2 | 3 | 4 | 2 | ||
| 4 | 5 | 6 | 4 | ||
| 8 | 7 | 8 | 8 | ||
| 10³ | 1 | 9 | 10 | 1 | 10² |
| 2 | 11 | 12 | 2 | ||
| 4 | 13 | 14 | 4 | ||
| 8 | 15 | 16 | 8 | ||
| NC | 17 | 18 | 1 | 10⁴ | |
| 19 | 20 | 2 | |||
| 21 | 22 | 4 | |||
| 23 | 24 | 8 | |||
| POL | 25 | 26 | MEMORY RESET | ||
| OVER | 27 | 28 | OUTPUT ENABLE | ||
| SYNC | 29 | 30 | LATCH | ||
| BOTTOM MEMORY | 31 | 32 | PEAK MEMORY | ||
| DATA COM | 33 | 34 | DATA COM | ||
RS-232C or RS-485
Screwless terminal
| C3 | C4 | C5 | C6 | C7 | |
|---|---|---|---|---|---|
| RS-232C | SD | RS | RD | CS | SG |
| RS-485 | Terminator | NC | + | − | |
Analog Output + RS-232C or RS-485
Screwless terminal
| C1 | C2 | C3 | C4 | C5 | C6 | C7 | |
|---|---|---|---|---|---|---|---|
| RS-232C | + OUT | − OUT | SD | RS | RD | CS | SG |
| RS-485 | + OUT | − OUT | Terminator | NC | + | − | |
Outline Drawing (Unit: mm)

Terminal Arrangement Diagram

Mounting Dimensions Drawing (Unit: mm)













