DC Ammeter, Voltmeter - DS - Ammeters for · PDF fileDC Ammeter, Voltmeter - DS DS Data Sheet...

1 / 01 / I / II / 1107Rishabh Instruments

RISHABH INSTRUMENTS PVT.LTD.F-31, MIDC, Satpur, Nashik-422 007,India.Tel.: +91 253 2202160, 2202202 Fax : +91 253 2351064E-mail : India :- [email protected] International :- [email protected]

DC Ammeter, Voltmeter - DS

Data SheetDSDS

4872

DSDS

96144

U

Analogue Meters withMoving - coil Movement

D. C. Voltage

Rated Value

Standard Measuring Ranges

Rated Value

D. C. Voltage

140 mV240 mV374 mV424 mV600 mV400 mV600 mV140 mV540 mV540 mV540 mV37 mV196 mV196 mV196 mV196 mV196 mV196 mV11 mV60 mV60 mV60 mV60 mV60 mV60 mV60 mV60 mV60 mV60 mV60 mV60 mV60 mV60 mV72 mV60 mV60 mV60 mV60 mV60 mV60 mV72 mV60 mV

*4 *515uA *4 *525uA *440 uA*450 uA*460 uA

100 uA150 uA250 uA400 uA500 uA600 uA1 mA1.5 mA2.5 mA4 mA5 mA6 mA10 mA15 mA20 mA25 mA40 mA60 mA100 mA150 mA250 mA400 mA600 mA1 A1.5 A2. 5 A4 A5 A6 A10 A15 A20 A25 A30 A40 A60 A

*7100 AFor use ontransducer4-20 mA

*515 mV *525 mV

40 mV50 mV60 mV75 mV100 mV150 mV250 mV400 mV600 mV1 V1.5 V2.5 V4 V6 V10 V15 V25 V30 V40 V50 V60 V100 V150 V200 V250 V300 V400 V500 V600 VFor use onexternalshunt

* 660 mV * 675 mV

* 6150 mV

3.33kohm/V3.33kohm/V3.33kohm/V3.33kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 Kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V1 kohm/V

1 kohm/V1 kohm/V1 kohm/V

60 mV

Moving coil movement has pivots of very high hardness. Movement is suspended between spring loaded saphire jewels. Movement isproperly shielded & critically damped by eddy currents induced incoil former.

Movement

The moving coil panel meters, DS 48/72/96/144 housed in mouldedpolycarbonate cases are suitable for the measurement of DC currents and voltages.

Application

Case details Moulded square case suitable formounting in Control / Switchgear panels,Machinery consoles.

Case material Glass filled polycarbonate ,flame retardant and drip proofas per UL 94 V-0.

Front facia GlassColour of bazel BlackPosition of use Vertical

Panel fixing Swivel screwsMounting Stackable in a single cutout

Panel thickness < 40 mm

TerminalsVoltmeters andammeters <6A

Hexagon studs, M4 screws andwire clamps E3 (DIN 46282)

Ammeters >6A Threaded studs M6 with nuts

Ammeters >60A Threaded studs M8 with nuts

Mechanical Data

Measured quantity

Overload capacity

voltage :DC or current

(acc. to IS: 1248 / IEC 51)Continuously

Short duration

:1.2 times rated voltage /current:2 times rated voltage,5 s Max10 times rated current,5 s Max

Enclosure code IP 52 case(IEC 529) IP 00 for terminals without back cover

IP 20 for terminals with back coverInsulation class Group A according to VDE 0110Rated DS 48 DS 72/96/144

660 V 1000VgProof volta e 2kV 3kV

Installation catagory 600 V CAT III (IEC 1010)Insulation resistance > 50 Mohm at 500 V d.c.

Electrical Data




*4 Accuracy class 2.5*5 Not applicable for DS 144*6 Total lead resistance of 0.035 ohm is considered for mV ranges while calibration.*7 Not applicable for DS 48

Pointer Knife - edge pointerPointer deflection Scale characteristics linear

00...90

Coarse - fineScale division Scale length DS 96 DS 144

41 mmScale Interchangeability

Scale and Pointer

Accuracy class 1.5 according to IS: 1248(IEC 51/ DIN EN 60051)

Reference conditionsAmbient temperature 230C + 20CPosition of use Nomial position + 10

Input Rated value of measured quantityOther conditions IS : 1248 (IEC 51/ DIN EN 60051)Nominal range of useAmbient temperature 0...50

0C

Position of use Vertical + 50

External magnetic field 0.5 mT

Accuracy at Reference Conditions

+( 10%)-

These instruments offer several advantages in switchboards andGenerating Set Panels. Number of meters can be mounted in a single Cut out (Mosaic mounting). Front glass, Bezel & Dial can be easily replaced.

Approx Voltage drop Sensitivity

DS 48 DS 72

Interchangeable63 mm 97 mm 146 mm

Climatic suitability

Operating temperature - 10... + 55Storage temperature - 25... 0+ 65 C

Relative humidity < 75% annual average, non-condensingShock resistor 15g, 11ms

Vibration resistor 10-150-10 Hz / 0.15mm1.5 g at about 50 Hz.

Environmental Conditions

Case

Front facia Antiglare glassColour of bezel Red, Yellow, Blue, White. Red index pointer Front adjustable on site

0Position of use on request 0 ....1800

DialBlank dialSpecial markings

Division dialsColour markings/bands

Options

Safety Terminal protection

Accessories




Nominal case and cutout dimensions forindicating Electrical instruments

: IS 2419DIN 43700

Scale and pointer for electrical measuringinstruments

: IS 1248DIN 43802

Connections and Terminal markings forpanel meters

: IS 1248DIN 43807

Terminal bolts / leads. :

Clamp straps for connections :

Safety requirements and protectivemeasures for Electrical indicating.instruments and their accessories. ,

:

DIN 46200/46282

DIN 46282

IS 9249DIN 40050/8-70,VDE 0110/ 11-72VDE 0410/ 10-76IEC 529 , IEC 1010

Performance specifications for directacting indicating analogue electricalmeasuring instruments & their accessories

: IS 1248IEC 51/DIN EN 60051

Environmental condition : IS 1248IS: 9000, Part 5, 7, 8,VDE / VDI 3540

Front frames for indicating measuringinstruments Principle dimensions

: DIN 43718

UL Combustibility Class : UL 94 V-0

Technical conditions of delivery forelectrical instruments

: DIN 43701

Mechanical strength (Free fall test,vibration test)

: IS 1248IS 9000VDE 0411, part 1,Sec. 43/44, IEC 1010

Comply with following European directives: 89 / 336/ EEC (EMC

Applicable Standards

Connections

DC current

DC voltage

X

L +L -

L +

L -

17 18

17 18

weight(Approx) 0.13kg 0.22kg 0.43kg

Depth with 64 64 64 64 back cover f**

* c = 68mm, for I= 6 to 60 A* c = 78mm, for I> 60 A** f = 70mm, for I= 6 to 60 A** f = 75mm, for DS 48, I >6A

DS 48 (in mm)

Bezel a 48 72 96 144 Case b 43.5 66 90 136 Depth c* 53 53 53 53 d 44.5 67.5 91.5 137.5 e 5.5 5.5 5.5 5.5 Cutout size 45 +0.6 68+0.7 92+0.8 138+1

For Voltmeter & Ammeter < 6A For Ammeter 6 - 100 A

Dimensions

Dimensions

Others

Zero positionIncreased sensitivity

10 kohm/V for Voltmeters 15..150VAdjustment of Resistance (Sensitivity)

Centre zero or off-set zero4kohm/V for voltmeters 1...600V

+ 1% at 230 CWithin

0.18kg

With initial and end values marked.Numbering / Lettering.Basic divisions without numbering.Red or green

Full sized polycarbonate back cover to provide protection against accidental contact (hand and fingers) acc.to IS 9249,VDE 0410.

::

:

Climate category II as per IS : 1248(climatic class 3 according toVDE/VDI 3540)

0 C

DS 72 DS 96 DS 144

directive),73/23/EEC(low voltage directive)& amendment 93/68/EEC,for marking.

DIN 43701

TypeDS Moving-coil panel meter

Front dimension48 48mm x 48 mm72 72 mm x 72 mm96 96 mm x 96 mm144 144 mm x 144 mm

Measuring ranges refer to table inside

Front facia Normal glass *1

Antiglare glass *3

Colour of bezel Black *1

Red,Blue,Yellow,White*3

Position of use Vertical *1

on request 0....180 0

*3

Terminal protection Full sized polycarbonate back cover

Zero position Centre , Off-set zero *3

Increased sensitivity 4 kohm/V for voltmeters 1...600 V *3

10 kohm /V for voltmeters 15 ...150 V*3

AdjustmentResistance Within + 1 % at 23

0 C *3

(Sensitivity)

Dial Standard scale same as measuring range , *1

Blank dial with division *3

Additional lettering on request *3

Additional numbering on request *3

Coloured marking red or green *3

Coloured sector red or green *3

Logo RISHABH *1, for Indian SalesC.G. * 1 , for export throughCrompton Greaves. I.D.Others *3

*1 standard

*3 Please clearly add the desired specifications while ordering

Ordering Information

DS 72 measuring range 0 ... 20 mA, dial with 0...100 C, red mark0

at 37 C.

0

Ordering example




* Instruments with damaged bezels or window glasses must be disconnected from mains.

* Adequate safety clearance must be maintained to control panel fasteners and to sheet metal housing, if non-insulated connector wires are used.

* The back cover must be snapped into place after the connector wires have been clamped for protection against accidental contact.

* Scales should be replaced under Voltage- free conditions.

* Bezels and window glasses should be replaced under Voltage - free conditions.

Safety Precautions

*1

Specifications are subject to change without notice (02/09)

DC Ammeter, Voltmeter - DS - Ammeters for · PDF fileDC Ammeter, Voltmeter - DS DS Data Sheet...

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