Breckland Scientific 2023 Catalogue

Heat & Energy

Joulemeters

a

1 MAINS DIGITAL JOULEMETER BASIC can be used to measure the power and energy consumption of a wide range of mains devices (up to a maximum power of 3750 W). The display shows values of voltage (V), current (A), power (W), frequency (Hz) and energy (kWh). It is straightforward to use, and simply pressing one of the buttons changes the display to show the quantity selected. There are many useful activities on measuring power that can be done quickly in the classroom, for example, looking at the difference between ordinary and energy-efficient light bulbs, or at the power reduction when a computer is switched into standby mode. The monitor can also be used over longer periods of time to measure total energy consumption, for example, the energy needed to run a refrigerator and whether this depends on how full it is or on the temperature of the room. Cat No. Description Price Per HEM-250-100 Mains Digital Joulemeter - Basic 26.39 ea. 2 DIGITAL JOULEMETER - STANDARD It just requires a supply and a load to be plugged into the meter, for example, a solar panel and a motor, and the meter will display the values of the power and the energy transferred. For simplicity, the instrument automatically adjusts the display to show suitable units and an appropriate number of decimal places so that it can deal with a very wide range of values (e.g. for energy, from 100 nanojoules up to 1.75 megajoules). The function button has four settings to select the desired quantities to be measured (energy and time; power; average power; voltage, current and power). • Current range: ±7A (current can flow in either direction) • Voltage range: ±25V • The meter can be powered over USB or using a 5V mains adaptor (included). Cat No. Description Price Per 3 PSU BASE POWER/ENERGY METER - LOW VOLTAGE DC This low voltage Power / Energy meter from PSU Base has a large back lit LCD display and two pairs of 4mm sockets – one pair for the input power and one pair for the ‘load’ (output) to be measured (e.g. a low voltage lamp, immersion heater etc.). The input, to power the unit and ‘load’, can be anything from 6.5 to 100 Volts DC and the load (output) can safely draw up to 20 Amps. • The current flowing through the load (A) • The power dissipated by the load (W) • The amount of energy converted by the load (Watt-hour or Wh, which can be converted to Joules by multiplying by 3600) Cat No. Description Price Per HEM-450-100 Power/Energy meter - Low Voltage DC 54.88 ea. The meter can measure and display the following parameters: • The voltage across the load (V) HEM-100-110 Digital Joulemeter - Standard 99.98 ea.

1

b

c

d

e

Mains Digital Joulemeter - Basic

f

g

2

h

i

j

k

l

m

Digital Joulemeter - Standard

n

o

3

p

q

r

s

t

v

Power/Energy Meter - Low Voltage

w

239

www.brecklandscientific.co.uk T: 01785 227227 | sales@brec landscientific.co.uk | F: 01785 227444