| Features | • Better Resolution |
|---|---|
| Movement | Moving coil movement has pivots of very high hardness. Movement is suspended between 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 | • Increased sensitivity to 4kohm/V for voltmeters 1 – 600V, and 10kohm/V for voltmeters 15 – 150V |
Jewell DGL Series – AC Ammeters/Voltmeters
The moving coil, rectifier panel meters DGL 48/72/96/144 are housed in polycarbonate cases and are suitable for the measurement of AC currents and voltages. Moving coil rectifier instruments measure average values and are calibrated to indicate RMS values, assuming a sinusoidal waveform for frequencies from 40 to 10000 Hz (AC current – 40 to 1000 Hz and AC Voltage – 40 to 10000 Hz). These instruments offer several advantages in switchboards and generating set panels. A number of meters can be mounted in a panel cutout (mosaic mounting). The front glass, bezel, and dial can be easily replaced.
Specifications
Mechanical
| Case Details | Molded square suitable for mounting in control switchgear panels and machinery consoles. |
| Case Material | Polycarbonate, flame retardant, and drip-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 <10A: Hexagon studs, M4 screws and wire clamps, E3 (DIN 46282). |
Electrical
| Measured Quantity | AC voltage or current |
| Overload Capacity | Acc to IS: 1248/IEC 51 |
| Continuously | 1.2 times rated voltage/current |
| Short Duration | 2 times, 5 seconds maximum: 1 overload 10 times rated voltage, 0.5 seconds maximum: 9 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 |
| Insulation Category | 300 VCAT III |
| Rated Insulation Voltage | 660V |
| Proof Voltage | 2kV |
| Insulation Resistance | <50MΩ at 500 Vdc |
Scale & Pointer
| Model | DGL48 | DGL72 | DGL96 | DGL144 |
| Scale Length | 70mm | 106mm | 142mm | 230mm |
| Scale Characteristics | Linear | |||
| Scale Division | Coarse - Fine | |||
| Scale Interchangeability | Interchangeable | |||
| Pointer | Knife edge | |||
| Pointer Deflection | 0-240° | |||
Environmenal
| Climatic Suitability | Climate category II as per IS:1248, IEC 60051 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) |
| Pollution Degree | 2 |
Applicable Standards
| 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 |
| IS 9249 DIN 40050 VDE 0110 VDE 0410 IEC 529/IEC 1010 | Safety requirements and protective measures for electrical indicating instruments and their accessories. |
| IS 1248 IEC 51/DIN EN 60051 DIN 43701 IS 1248 IS 9000 VDE/VDI 3540 | Performance specifications for direct acting indicating analog electrical measuring instruments and their accessories. |
| 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 |
Related Products
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