The moving coil panel meters, DSL 48/72/96/144 are housed in molded polycarbonate cases are suitable for the measurement of DC currents and voltages. These instruments offer several advantages in switchboards and generating set panels. A number of meters can be mounted in a panel cut out (mosaic mounting). The front glass, bezel, and dial can be easily replaced.
| Features | • Better Resolution |
|---|---|
| Movement | Moving coil movement has pivots of very high hardness. Movement is suspended between two spring-loaded sapphire jewels. Movement is properly shielded and critically damped by eddy currents induced in coil former. |
| Case Options | • Antiglare glass front fascia |
| Dial Options | • Blank dial with initial and end values marked |
| Other Options | • Center zero or off-set zero position |
Mechanical
| Case Details | Molded square suitable for mounting in control switchgear panels and machinery consoles. |
| Case material | Polycarbonate, flame retardant, and drop proof per UL 94-V-0 |
| Front Fascia | Glass |
| Color of Bezel | Black |
| Position of Use | Vertical |
| Panel Fixing | Mounting clamps |
| Mounting | Stackable in a single cutout |
| Panel Thickness | ≤25mm |
| Terminals | Voltmeters & Ammeters <5A: Hexagon studs - M4, screws and wire clamps, E3. Ammeters >5A: Threaded stud- M6 with nuts. Ammeters >60A: Threaded studs - M8 with nuts. |
Electrical
| Measured Quantity | DC voltage or current |
| Overload Capacity | Acc to IS: 1248/IEC 51 |
| Continuously | 1.2 times rated voltage/current |
| SHORT DURATION | |
| Voltmeters | 2 times for 0.5 seconds: 9 overloads 2 times for 5 seconds: 1 overloads |
| Ammeters: DS 48, 72, 96 | 10 times for 0.5 seconds: 9 overloads 10 times for 5 seconds: 1 overload |
| Enclosure Code (IEC 529) | IP 52 - case cover IP00 - terminals without back cover IP20 - terminals with back cover |
| Insulation Class | Group A according to VDE 0110 |
| Rated Insulation Voltage | 1000V |
| Proof Voltage | 3kV |
| Installation Category | 600V CAT III (IEC 1010) |
| Insulation Resistance | <50MΩ at 500 Vdc |
Scale & Pointer
| Model | DS48 | DS72 | DS96 | DS144 |
| Scale Length | 70mm | 106mm | 142mm | 230mm |
| Scale Characteristics | Linear | |||
| Scale Division | Coarse - Fine | |||
| Scale Interchangability | Interchangeable | |||
| Pointer | Knife edge | |||
| Pointer Deflection | 0-240° | |||
Environmenal
| Climatic Suitability | Climate category II as per IS:1248 Climatic class III according to VDE/VDI 3540 |
| Operating Temperature | -10° to +55°C |
| Storage Temperature | -25° to +65°C |
| Relative Humidity | ≥75% annual average, non-condensing |
| Shock Resistance | 15gn for pulse duration 11ms |
| Vibration Resistance | 10-55-10 Hz for amplification 0.15mm (1.5g at 50Hz) |
| IS 2419 DIN IEC 61554 | Nominal case and cutout dimensions for indicating electrical instruments |
| IS 1248 DIN 43802 | Scale and pointer for electrical measuring instruments |
| IS 1248 DIN 43807 | Connections and terminal markings for panel meters |
| DIN 46200 DIN 46282 | Terminal bolts/leads |
| DIN 46282 | Clamp straps for connections |
| IS 9249 DIN 40050 VDE 0110 VDE 0410 IEC 529 IEC 1010 | Safety requirements and protective measures for electrical measuring instruments and their accessories. |
| IS 1248 IEC 51/DIN EN 60051 DIN 43701 | Performance specifications for direct acting indicating analog electrical measuring instruments and their accessories. |
| IS 1248 IS 9000 VDE/VDI 3540 | Environmental condition |
| DIN 43718 | Front frames for indicating measuring instruments principle dimensions |
| UL 94-V-0 | UL combustibility class |
| DIN 43701 | Technical conditions of delivery for electrical instruments |
| IS 1248 IS 9000 VDE 0411 IEC 1010 | Mechanical strength (free fall test, vibration test) |
European Compliances
| 2004/108/EC | EMC directive |
| 2006/95/EC | Low voltage directive |
| Amendment 93/68/EEC | For CE marking |
| Datasheet |
| IS 2419 DIN IEC 61554 | Nominal case and cutout dimensions for indicating electrical instruments |
| IS 1248 DIN 43802 | Scale and pointer for electrical measuring instruments |
| IS 1248 DIN 43807 | Connections and terminal markings for panel meters |
| DIN 46200 DIN 46282 | Terminal bolts/leads |
| DIN 46282 | Clamp straps for connections |
| IS 9249 DIN 40050 VDE 0110 VDE 0410 IEC 529 IEC 1010 | Safety requirements and protective measures for electrical measuring instruments and their accessories. |
| IS 1248 IEC 51/DIN EN 60051 DIN 43701 | Performance specifications for direct acting indicating analog electrical measuring instruments and their accessories. |
| IS 1248 IS 9000 VDE/VDI 3540 | Environmental condition |
| DIN 43718 | Front frames for indicating measuring instruments principle dimensions |
| UL 94-V-0 | UL combustibility class |
| DIN 43701 | Technical conditions of delivery for electrical instruments |
| IS 1248 IS 9000 VDE 0411 IEC 1010 | Mechanical strength (free fall test, vibration test) |
European Compliances
| 2004/108/EC | EMC directive |
| 2006/95/EC | Low voltage directive |
| Amendment 93/68/EEC | For CE marking |
