Description
The digital panel meter range, known as the M300 series is
primarily designed for use in the power industry, but offers a
wide range of both AC and DC input parameters. The
applications are limitless.
Essentially there are 3 main product types :-
AC Volts, Amps, Millamps.
DC Volts, Amps, Millamps, Millivolts.
Frequency.
With the combination of a mA input the M300-AD1 and the
M100 series Power Transducer, parameters such as kW,
kVAR etc. can be measured and displayed.
Customer adjustment of both “ZERO” and “SPAN” is
permissible via potentiometers, accessible from the rear of the
product.
The meters are 3½ digit with a digit size of 14.2mm (0.56″)
high, 7 segment matched LEDs allowing viewing from a
wide range of angles and distances.
A full range of M300 meters are available on our main site. For to order M300 range please contact sales@multitek-ltd.com
Specifications
INPUT TYPE RANGE
Measurement Product Code Input Range
AC VOLTS M300-VAD 0…..600V
DC VOLTS M300-VD1 ± 50/60/75/100/150mV
DC VOLTS M300-VD2 ± 50mV …..1999mV
DC VOLTS M300-VD3 ± 2V…..199.9V
DC VOLTS M300-VD4 ± 200V….600V
AC AMPS M300-AAD 1 or 5 AC (0.2 TO 10A)
DC AMPS M300-AD1 ± 1 / 5 / 10 / 20mA
DC AMPS M300-AD2 ± 100uA…..199.9uA
DC AMPS M300-AD3 ± 20mA……10A
DC AMPS M300-AD4 4/20mA
FREQUENCY M300-HZD 35Hz…..199.9Hz
PERFORMANCE
IMPENDANCE :-
M300-VAD 10k Ohm/V
M300-VD1/2 >100k Ohm/V
M300-VD3/4 10k Ohm/V
BURDEN
M300-AAD < 2VA
M300-AD1/2/3/4 20mV
OVERLOAD
Current 4 x continuous
25 x 1 second
Voltage 1.5 x continuous
4 x 1 second
Accuracy ± 0.05% of reading ± 1 digit
Resolution 0.05%
Linearity ± 1 digit roll over error ± 2 digits
Conversion Dual slope integration
CMR AC 50dB 50 to 60 Hz
DC 25 1k Ohm source unbalanced.
Normal mode rejection 25dB 50 to 60Hz
ENVIRONMENTAL
Working Temperature 0 to +60 deg C
Function Temperature – 25 to +70 deg C
Storage Temperature -55 to +85 deg C
Temperature Coefficient 0.01% per deg C
Relative Humidity 0-95% non condensing
Warm up time 1 min.
Shock 30G in 3 planes
INSULATION
Test Voltage 4kV RMS 50Hz 1 min
AUXILIARY
AC Voltage 115 or 230 Volts (± 25%)
45 to 65 Hz. Burden < 2VA
DC Voltage 24 / 48 / 110 Volts (± 20%)
Galvanic isolation. Burden < 3W
DISPLAY
Digits 1999 Full scale
Size 14.2mm (o.56″) 7 segment red
Decimal point Internally selectable
Overrange indication Display “1” or “-1”
Update response time < 1 second
Polarity Automatic with (-) indicating
negative inputs
Enclosure
Standard DIN case 96 x 48 x 94 mm
Panel mount Via retaining side brackets and screws
Panel cutout 92 + 0.8mm x 45 + 0.8mm
Material Black Polycarbonate complying with
UL 94 VO
Terminals Screw terminal for 2 x 0.5-3.5mm
Enclosure code IP54 NEMA 12
Weight 0.4kg
GENERAL & SAFETY INSTRUCTIONS
All units built and tested for safety, accuracy, quality and
reliability. Units are delivered fully calibrated, however
adjustments to “ZERO” and “SPAN” can be made by removing
the appropriate covers on the rear of the instrument.
These products must be installed by a qualified engineer.
VOLTAGE dangerous to human life may be present at some of
the terminals of this unit. Exercise extreme caution during
installation.
