Detail
VIRA D-SMH 1000 is a high level limiter set for steam boilers. The system consists of the D-SMK 1000 High Level Limiter Controller and the SMHD 1000 High Level Limiter Probe. It provides reliable high water level alarm protection to support safe boiler operation.
Fail-Safe and Self-Monitoring Architecture
The D-SMH 1000 uses a fail-safe, redundant and self-monitoring architecture. The system continuously monitors its operating condition and supports fault detection for open circuit, short circuit, leakage and probe contamination conditions.
High Level Alarm Protection
When a high water level condition is detected, the system provides an alarm signal for protective action. Clear fault and status indication helps operators identify the operating condition of the limiter system.
Clear Indication and Operator Functions
The D-SMK 1000 controller operates on 24VDC and features a 7-segment display for clear status indication. Dedicated test and reset functions support routine functional checks and controlled operator action.
Flexible Installation
The controller can be installed in DIN rail or panel-mount configurations, supporting integration into different boiler control panel designs.
Suitable for Unattended Boiler Rooms
Its self-monitoring structure and fault detection functions make the D-SMH 1000 suitable for steam boiler installations designed for up to 72 hours of unattended operation, subject to the requirements of the complete boiler system and local regulations.
Key Features
- D-SMK 1000 High Level Limiter Controller and SMHD 1000 High Level Limiter Probe
- 24VDC supply
- High water level alarm function
- Fail-safe, redundant and self-monitoring architecture
- Open circuit, short circuit, leakage and contamination fault monitoring
- 7-segment display
- Test and reset functions
- DIN rail and panel-mount installation options
- Suitable for boiler rooms designed for up to 72 hours of unattended operation
| Controller | : | D-SMK 1000 High |
| Supply Voltage | : | 24VDC |
| Functions | : | Self Monitoring High Level |
| Input | : | Level Probe Input, Ground |
| Outputs | : | 1 Safety Relay, 1 Alarm Relay |
| Display | : | 7 Segment |
| Button | : | 4 Pieces (Test, reset, Menü, Set) |
| Max. Ambient Temp. | : | 55 ºC |
| Enclosure | : | PC |
| Teyp | : | Panel and Dın Rail |
| IP Class | : | IP 40 |
| Probe | : | SMHD 1000 |
| Connection and Size | : | Threaded - G 1/2'' BSPT (Optionel NPT) |
| Nominal Pressure | : | PN 40 |
| Length | : | 500-1000-1500 mm |
| Max. Operat. Press. | : | 32 Bar (g) |
| Max. Operat. Temp. | : | 239 ºC |
| Max. Ambient Temp. | : | 75 ºC |
| The length of the probe can be cut to desired level |
