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Electrical Accessories
Micro-Ammeter, Moving Coil
For D.C. measurements, any single range, 0-50, 100, 150, 200, 250, 500, A. The ranges covered are 0-100 uA to 0-500 uA.
For D.C. use only, with a permanent magnet, spring-controlled movement, jeweled bearings, hard polished pivots, and knife edge pointer. Each meter is mounted on a plastic/acrylic stand with color-coded terminals.
PH63009 -
Electrical Accessories
Galvanometer, Moving Coil
For D. C. measurements, Scale 35-0-35 or 50-0-50.
For D.C. use only, with a permanent magnet, spring-controlled movement, jeweled bearings, hard polished pivots, and knife edge pointer. Each meter is mounted on a plastic/acrylic stand with color-coded terminals.PH63012 -
Electrical Accessories
Voltmeter, Dual Scale, Moving Coil
For D. C. measurements. 1/5, 3/15, 5/15 Volts. The ranges covered are 0 – 1 Volt to 0 – 600 Volt.
For D.C. use only, with a permanent magnet, spring-controlled movement, jeweled bearings, hard polished pivots, and knife edge pointer. Each meter is mounted on a plastic/acrylic stand with color-coded terminals.
PH63019 -
Electrical Accessories
Ammeter, Dual Scale, Moving Coil
For D.C. measurements. 2.5/5, 1/5, 1.5/3, 5/10 Amps. The ranges covered are 0 – 1 Amp to 2 – 10 Amp, with an internal shunt.
For D.C. use only, with a permanent magnet, spring-controlled movement, jeweled bearings, hard polished pivots, and knife edge pointer. Each meter is mounted on a plastic/acrylic stand with color-coded terminals. These meters are available in the following sizes:
PH63021 -
Electrical Accessories
A.C. Voltmeter, Moving Coil
Permanent magnet type with in-built rectifier, any single range, 0-30, 60 Volts. The ranges covered are 0 – 1 Volt to 0 – 600 Volt.
For D.C. use only, with a permanent magnet, spring-controlled movement, jeweled bearings, hard polished pivots, and knife edge pointer. Each meter is mounted on a plastic/acrylic stand with color-coded terminals.
PH63027 -
Electrical Accessories
A.C. Ammeter, Moving Coil
Permanent magnet type, with current transformer, any single range, 0-1, 3, 5, 10 Amps. The ranges covered are 0 – 1 Volt to 0 – 600 Volt.
For D.C. use only, with a permanent magnet, spring-controlled movement, jeweled bearings, hard polished pivots, and knife edge pointer. Each meter is mounted on a plastic/acrylic stand with color-coded terminals.
PH63030 -
Electrical Accessories
A.C. Milliammeter Rectifier Type
Without current transformer, any single range, 0-5, 10, 25, 50, 100, 250, 500mA.
For D. C. use only, with permanent magnet, spring controlled movement, jeweled bearings, hard polished pivots and knife edge pointer. Each meter is mounted on a plastic/acrylic stand with color coded terminals.
PH63033 -
Electrical Accessories
Demonstration Meter
With interchangeable scales. A versatile instrument and demonstration meter that can be converted to an A.C., or D. C. voltmeter or ammeter with a selection of various ranges for each mode. With a high-quality moving coil, spring-controlled movement with full-scale deflection of 5 mA or 100 mV D.C. The long pointer has a spade end and is clearly visible from a distance. Fitted in the case with glass front and back. The instrument can be used with different dials to give different voltage and current ranges. All dials are interchangeable and each has a plug coupler to fit the instrument. The coupler connects appropriate resistors, shunts, or rectifiers to convert the instrument to the range as given on the scale of the particular dial. The scales have clear bold figures and are marked on both sides to enable the lecturer also to observe the reading from the back of the instrument. A zero adjuster allows the instrument to be used for centre zero dials. One dial of range 50-0-50mV D. C. is supplied with the instrument. In plastic case.
PH64200 -
Electrical Accessories
Multirange Meter
Design to serve dual purpose as volt meter and ammeter. It offers quadruple range. A slide selector is provided to select the required range.
Measuring range
Volt: 0-100 mV, 1V, 10V and 50V.
Ampere : 0-100 μA, 100 mA, 1A and 5A.
Accuracy: ±2.5 FSD.
Dimension: 160 x 115 60 mm approx.PH64250 -
Electrical Accessories
Multi Range Voltmeter
The moving coil multi-range voltmeter can be used to measure A.C. as well as D.C. voltages. The operation of these meters depend on the interaction between the field of permanent magnet and moving coil field. To measure the voltage, select the desired voltage range and toggle the switch to choose between A.C and D.C.
Range: 0-5-25-50-100-250-500 Volts.
Accuracy: D.C. ± 2 FSD, A.C. ± 2.5 FSD.PH64254 -
Electrical Accessories
Multi Range Ammeter
The moving coil multi-range ammeter can be used to measure A.C. as well as D.C. currents. The operation of these meters depends on the interaction between the field of the permanent magnet and the moving coil field. To measure the current, select the desired range and toggle the switch to choose between A.C and D.C.
Range: 0-10mA-100mA-500mA-1A-2.5A-5A.
Accuracy: D.C. ± 2 FSD, A.C. ± 2.5 FSD.PH64256 -
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Electrical Accessories
Spot Galvanometer
High sensitivity, very useful as a null detector. Housed in a sturdy plastic case with an in-built lamp and scale arrangement, taut band type movement, with Alcomax magnet, clamp, and free arrangement for safe transportation, easy replacement of the 6 V lamp, working on 220V A. C. with internal transformer. With a rotary switch for selecting any of the five shunt powers 1, 1/10, 1/100, 1/1000, and short circuit.
Galvanometer resistance: 125 ohms.
Current per mm deflection: 5 x 10−8
Volts per mm deflection: 6.25 x 10−6
Critical damping resistance: 1000 ohms.PH64300 -
Electrical Accessories
Ballistic Galvanometer
For measurement of small quantities of electrical charge. the moving coil is suspended by a phosphor bronze strip, which carries an optically true concave mirror. The coil can be raised, lowered or set to zero by an adjusting knurled knob at top. A knob at back is provided for clamping and releasing the coil. With leveling screws.
PH64302 -
Electrical Accessories
Micro Voltmeter
The Micro voltmeter is an effective and robust replacement for a spot galvanometer, with 9 ranges from 100μV to 1V. The input resistance of 1kΩ gives 10MΩ/V on 100μV range, which is considerably better than a spot galvanometer. The instrument has a large moving coil meter, with auto-zero facility. Input is by way of 4mm sockets or a BNC socket, for very low voltages where a shielded lead is preferred.
- An effective and robust replacement for a centre-zero galvanometer.
- 10 MΩ/V on 100μV range – considerably better than a spot galvanometer.
- Auto-zero facility.
PH64304
+1 (630) 345-3450