Moving Coil Meter
This is a centre cored, self shielding moving
coil movement, using pivots, hairsprings and
sprung jewels.
Variations in movement ranges are limited by
design to 7: all intermediate ranges are
achieved by shunting the next lowest range.
All D.C. voltmeters are 1000 ohms per volt,
rectified product run at 900 ohms per volt,
millivolt meters use the 5 milliamp
movement.

Moving Iron Meter
This is a clapper type repulsion design using
pivots, hairsprings and jewels movement. The
bottom jewel is oil filled to provide damping
while the top is sprung for resilience.
All voltmeters are manufactured with the
voltage dropper resistors outside to
substantially reduce the self heating effects.

Frequency Meter
This uses a 100 microamp 4000 ohm
movement driven by an EMC hard frequency
conversion circuit.

Type of Instrument

 Moving Iron for Current and
Voltage

Moving Coil for Current and Voltage

Moving Coil with rectifiers for Current and Voltage

Moving Coil with built in
transducer for frequency
measurement

Maximum
Demand
Indicators

Combined MDI with Moving Iron Movement

Format

48 x 48 mm 

72 x 72 mm

96 x 96 mm

144 x 144 mm

Movement
Type

Sprung pivot
Jewel with silicon
oil damping

Sprung pivot
Jewel with silicon
oil damping

Sprung pivot
Jewel with silicon
oil damping

Burden

0.5VA to 15A
then 0.8VA
Voltmeters 4.5VA

See detailed
specification

See detailed
specification

See detailed
specification

2.5VA

3VA

Accuracy

1.5% to DIN43780

2.5% to DIN43780

0.5% to DIN43780

3% on MDI

3% on MDI
1.5% ammeter

Input Type

A.C. Current or
Voltage

D.C. Current or
Voltage

Rectified A.C.
Current or
Voltage

Frequency for all
Voltage ranges

Mean RMS value
and maximum
demand Current

Mean RMS value
and maximum
demand current
and
instantaneous
current

Measuring
Range

6V - 600V
100 mA - 100A

15mV - 600V
25µA - 100A

6V - 600V
100µA - 100mA

57.7V @ 45
Hz-500V @
44Hz

1A - 6A
8, 15 or 20
minute delays

1A - 6A
8, 15 or 20
minute delays
0 - 5A/6A
instantaneous

Dielectric
Voltage
withstand
Test

3 kV A.C.

Performance

BSEN60051

Measuring Ranges

DIN 43701

Accuracy Overload

BSEN60051

Dimensions

DIN43700

Scale Marking Generally To

DIN43802

Magnetic Influence

BSEN60051

Safety

BSEN61010-1

Terminals

Clamp strap M4 up to 25A. Clamp strap M8 over 25A
1/4" spade terminals available for models E243 & E244

Humidity Range

Up to 95% RH (non condensing)

Test Voltage @50Hz

3kV RMS for 1 minute

Ammeter Ranges

1.0/1.2/1.3/1.5/2.5/4/5/6/8 and decade multiples thereof.

Overload AC Current

x 1.2 continuous x 10 for 5 seconds

AC Voltage & Frequency

x 1.2 continuous x 2 for 5 seconds

Standard Calibration

23°C. Calibration at other temperatures available on request

Operating Temperature

20°C to +60°C

Damping Time

Less than 3 seconds

Enclosure Code

IP52 as standard
IP54 on request

Case and Base

Grade UL94V0 (Lexan 500R)

Case

Dimensions and panel cutout conform to IEC473, DIN 43700. Case made from glass filled polycarbonate self extinguishing and non drip in accordance with UL94 V-O

Bezel

Slim-line DIN43802 black as standard

Bezel Window

Standard sheet glass, with zero adjusters where appropriate. Non reflecting glass or polycarbonate shatterproof windows are available.

Installation

Installations in switchboard panel or mosaic arrangement on equipment or machine with a panel thickness of up to 40mm in a horizontal or vertical plane

Fixing on Panel

Swivel captive fasteners, which can be fixed at either corner

Mounting Position

Normal vertical mounting or as indicated on the scale in accordance with DIN 16257. A deviation of ±15° is permissible

Insulation Group

Insulation resistance more than 5MΩ@ 500 V

Environmental

Measurement Category III IEC 1010-1
Pollution Degree 2 IEC 1010-1
Electrical Rating 600V RMS (920V Peak)

Approvals:

EMC, LVD and Lloyds