Hakaru FDG-501 And FDG-521 And FDG-541 Digital Multi Bar Graph Meter

Manufacturer: HAKARU PLUS CORPORATION
Model: FDG-501 and FDG-521 and FDG-541

Horizontal Type (96 × 48), Scale Length 50mm, No Alarm / 2- or 4-Point Alarm

Model

FDG-5(1)1-(2)-(3)

(1) Alarm

Code	Description
0	No alarm, indicator only
2	2-point alarm, H and L
4	4-point alarm, HH, H, L, and LL

(2) Power Supply

Code	Description
Z	AC85 to 264V

(3) Input

Code	Input Range
1	0 to 1mA
2	4 to 20mA
3	0 to 1V
4	1 to 5V
5	0 to 5V
0	Other

How to Order Example

Model: FDG-541-Z-4
Bar graph color: Red
Scale: 0 to 500°C
Digital value: 0 to 500.0
Special specification:

Device Specifications

Housing: ABS resin case, Munsell N1.5
Front window: Acrylic resin, transparent
Nameplate: Munsell N1.5
Connection: M3 screw terminal
Scale plate: Black colored aluminum, white characters and white scale lines
Scale length: 50mm
Display color: Red LED
Number of bar dots: 51, with 1 over display
Input overrange: Over display lights up
Digital display: 4-digit red / green 2-color LED, character height 15mm
Digital display color:

Upper limit / above upper limit: Red
Normal, between upper and lower limits: Green
Lower limit / below lower limit: Orange

Scaling value: -9999 to 9999
Maximum resolution: 1/5000
Isolation: Input, alarm contact, and power supply are isolated.
Zero / span adjustment: Approx. ±10%
Alarm hysteresis: 1%

Other Functions

PH, peak hold: Records the maximum value.
bH, bottom hold: Records the minimum value.
FZ, forced zero: Sets the input value immediately before contact ON to “0”.

Input Specifications

Measuring input resistance:

Input Range	Input Resistance
0 to 1mA	200Ω
4 to 20mA	10Ω
0 to 1V	1MΩ
1 to 5V
0 to 5V

Contact input, voltage-free:

Hold: Keeps the input value while ON.
Reset: Clears the stored peak / bottom value when turned ON. Displays the current value while ON.
Forced zero: Sets the input value immediately before ON to “0”.

Output Specifications

Contact capacity: AC125V 0.5A, resistive load; DC30V 2A, resistive load.

Installation Specifications

Power supply: AC85 to 264V 7VA
Operating temperature range: 0 to 45°C
Operating humidity range: 40 to 85%RH, no condensation
Dimensions: W96 × H48 × D137
Mounting direction: Horizontal
Mass: Approx. 360g

Performance

Reference accuracy:
Bar graph display: ±(2% + 1digit)
Digital display: ±0.5%
Response time: 0.5 seconds
Insulation resistance: Electrical circuits collectively to external case, 50MΩ or more / DC500V
Dielectric strength: Electrical circuits collectively to external case, AC1500V for 1 minute
Between input, output contact, and power supply: AC1000V for 1 minute

Connection Diagram