|These high quality 90° quadratic DIN meters comply with DIN EN60051 (IEC51) requirements , with a standard accuracy of ±1.5% of full scale or better.The DQ series measures DC current or voltage, these moving coil meters are suitable for all D.C. systems. Scales are linear and customized to customer’s needs and specifications. For special high accuracy meters to better than 1 %, scales are hand marked and critcally calibrated to achieve the desired accuracy. High currents are measured
with separate shunts and suitably scaled indicators. Suppressed, centre and offset
zero models are available.The EQ series is designed to measure AC current or voltage, indicating t rue r.m.s. values
and are substantially independent of system waveform. These ammeters can have overload scales x2, x3, x5 or x6 for motor start duty.
Ammeters can be supplied for use with 1A or 5A current transformers, the
voltmeters can be scaled for use with voltage transformers. Heavy damping is
available as an option. Meters can be used to measure D.C. at reduced accuracy.Elapsed time meters or hours run meters monitor “ON/RUN” time of plant and
equipment allowing the user to perform functions such as production efficiency, cost
estimating and service period monitoring for preventative maintenance etc. The time
is measured in increments of 0.01h up to 99999.99 hours after which time the meter
resets to zero. Meters are non resettable to prevent accidental resetting.
Maximun demand meters monitors the most economic use of cable,
fusegear and transformers. The directly heated bimetal element indicates mean
r.m.s. current over 8, 15, or 20 mins, and a red slave pointer shows the highest value
reached. The reset knob is wire sealable. Scales are calibrated to match the C.T.
primary plus 20% overload.
Dual instruments can be used to measure a wide range of currents and voltages,
and save both space and time by requiring only one panel cut-out.
These meters allow for independent measurement of two DC or AC current or voltage in one case.
Watt and Var meters self contained and are available to measure active power
and reactive power in both balanced and unbalanced, single and 3 phase 3 or 4
wire systems. These Wattmeters are ideal for clear precise analog indication of
power in applications such as power generation, industrial control panels and
These Power Factor Indicators are suitable for generators or supplies operating in
parallel. The four quadrant 360° scale calibrated cos ø 0-1-0 indicates forward
(export) and reverse (import) power flow for inductive and capacitive loads.
Phase Angle meters indicate the phase displacement between current and
voltage. Used in applications where the phase angle must be monitored, for example
with tariffs having VAr penalties, or to optimise generator power delivery.
The measuring system comprises a moving coil indicator and a phase angle