Options
The DGPT2 has an open modular design, and many options can be used to tailor the device to customer specifications. In particular, there are plenty of simple safety-update options for old transformers which can avoid the fastedious process of emptying the transformer tank. Among the four standard products, only the DGPT2 and DGP are concerned by options.
Available options
Options are not limited to the following list: additional options may be added upon request by our technical department.
| Device | Description | Code | |
|---|---|---|---|
| DGPT2 | DGP | ||
 |
DGP-AT | Maximum needle for the thermometer | AM |
| — | |
Optional thermometer | AT |
| |
|
For transformers with PCB dielectric fluid | AS |
| |
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External metal connector | CE |
| |
|
4 mm² industrial-type terminals | CQ |
| |
DGP-AT | Thermometer on front cover | FA |
| — | DGP-SB | Flange for “TRHE” fitting | HE |
| |
|
Adaptor for Buchholz-type fitting | IB |
| |
— | Marine stuffing-gland anchorage | PA |
| — | |
Flangeless | SB |
| |
|
Safety valve | SO |
| |
— | Precision thermometer ±1°C (±1.8°F) | TS |
| |
— | Lockable thermostats | TV |
| |
|
Double contact pressure switch | 2P |
| |
|
Double contact gas discharge switch | 2G |
| |
|
Double non-inverting gas and pressure contacts | 2GPNI |
| |
|
Pt100 temperature probe for remote reading | PT |
| |
|
2 change-over gas contacts, offset thresholds | 2GD |
| |
|
2 change-over pressure contacts, offset thresholds | 2PD |
| |
— | Device for corrosive atmosphere | X |
Labelling of devices with options
A device can have one or more options, the number of which is not limited. However, the following option combinations are not possible:
| Device | Description of problem | Options | |
|---|---|---|---|
| DGPT2 | DGP | ||
| |
— | Dimensional stacking forbids closing the cover | FA/AM |
| — | |
No flange implies no thermometer well | SB/AT |
| — | |
No flange implies no thermometer well | HE/AT |
| |
— | Too many terminals for the electrical plate | 2G/2P |
A device with options is labelled with the name of the standard device, a dash ”-”, then the option codes separated by slashes ”/”.
Example
A DGPT2 with optional 4 mm² industrial-type terminals and marine stuffing-gland anchorage is labelled DGPT2-CQ/PA.