DB-209 Level indicator（Explosion proof i3aG4）
Now we only maintain and repair this product. Here is the successor model.
The detector and zener barrier which devices that makes up the DB-209（i3aG4）series
are also individually approved as explosion-proof devices.
Our number one priority when designing sensors is ease of maintenance.
Feature
●We use two-core shielded cables for all wiring, and the cable is both safe and economical.
●This product has high zero point accuracy against temperature changes.
●In order to facilitate maintenance, we adopted a cassette type for the amplifier section.
You can use these each devices in systems other than the DB-209 series.
If you want to combine these devices in other series, each must meet the following conditions.
1．Zener barrier that can be combined with the detector（DB-209）.
Safe holding rating
Maximum voltage ＜ 8.0V
Maximum current ＜ 170mA
Maximum power ＜ 340mW
Inductance or capacitance of the parameters and the connection cables
Allowable inductance ＞ Lw
Allowable capacitance ＞ 10μF＋Cw
2．Intrinsically safe equipment that can be combined with the zener barrier（VZ－101）
Safe holding rating
Allowable voltage ＞ 7.7V
Allowable current ＞ 160mA
Allowable power ＞ 260mW
Inductance or capacitance of the parameters and the connection cables
Input inductance＋Lw ＜ 200μH
Input capacitance＋Cw ＜ 15μF
Device configuration
３piece configuration（Sensor part・Zener・Power supply part）
Contact us if you need to ask about electrode shapes.
If you wire three devices, please choose the correct devices by serial number.
If you wire devices that don't fit together, the device won't output correct values.
Be sure to check the serial number of the device when you connecting.
Specification
Converter DB-209
| Input power supply | AC100V/200V±10％ 50/60Hz |
| Output signal | DC4～20mA Resistive load 450Ω or less |
| Power consumption | 5W or less |
| Measurable range | Full scale 0 to 2000pF variable |
| Linearity error range | 1% or less |
| Usable temperature | 0～60℃（No condensation） |
What’s intrinsically safe explosion-proof construction ?
This is structure that has been approved by public institution tests to ensure that the device will not overheat even if multiple dangerous accidents overlap, and that electrical sparks will not occur even if any part of the device installed in the hazard area is shorted.
You can use this device safely if you follow the wiring method according to「Explosion-proof guidelines for factory electrical equipment 2500」.
No need to cover it with a protective case.
We have provided an explosion-proof Class A grounding connector on the Zener barrier, so be sure to ground Class A when using the device.
Standard Dimensions Figure
We will respond to your request to change the electrode shape and material.
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