A multipurpose instrument which is invaluable in the physics laboratory,
combining the functions of a multipurpose timer, a ratemeter and a frequency
meter in one compact and economical unit. Its uses are many and varied
covering a wide area of the physics syllabus. Uses in the timer mode range
from a simple stopwatch to more sophisticated applications such as dynamics
experiments with air tracks etc. The scaler and ratemeter modes allow numerous
radioactivity experiments to be undertaken, for example, variations in
background radiation, half-life determination and investigation of absorption
coefficients. When used as a frequency meter the instrument will accept
diversified waveforms and may be used, for example, to determine the
rotational frequency of a stroboscope disc and for displaying the frequency of
a waveform from a signal generator. It has four, 7-segment LED digits, 14mm
high. The high brightness and large size display make it ideal for classroom
demonstrations.
The microprocessor based design minimises the number of controls required and
these are clearly labelled so that the instrument is very straightforward to
use. All sockets are 4mm and arranged in pairs at 19mm spacings. A single
biased-off double throw switch enables RESET or HOLD to be momentarily
selected. The HOLD position halts the display whilst the internal timing or
counting continues.
The instrument, when used as a timer can be switched mechanically or
electrically by connecting to one or both pairs of sockets, labelled 'A' and
'B'. The 'A' sockets operate on a rising edge and the 'B' sockets operate on a
falling edge enabling start/stop operations to be performed from a variety of
switch combinations. Besides use as a standard electronic timer, the
instrument can be pulse operated to enable moving bodies to be timed using
phototiming gates.
When used as a scaler or ratemeter the input signal can be via either a GM
tube (we recommend [XWV111020](https://www.scichem.com/product/gm-tube-and-
holder-xwv111020)) or a solid-state detector. The GM tube is connected via a
TNC coaxial socket and with the switch set to 'GM' the EHT supply is
continuously variable over the range 300 to 500V (XAR 100 011 is not suitable
due to the connection). With the switch set to 'SS' the preamplifier is
switched in. The solid-state detector is connected using a BNC coaxial socket.
When used as a ratemeter an audio output can be obtained. For frequency
measurements the input is via the pair of sockets labelled 'A'. An illuminated
on/off switch is mounted on the rear panel adjacent to a fused appliance
inlet. The unit is built into a robust metal case with a durable powder coated
finish.
Free on orders greater than £100
Free on orders greater than £250
IPC Digital Scaler Timer+Frequency Meter (Each)
Item #: XAR020010£486.04
IPC Digital Scaler Timer+Frequency Meter (Each)
5 in stock
UK mainland (excluding Northern Ireland, Scottish Highlands, Channel Islands and the Isle of Wight) :
Orders less than £100.00 are subject to a £7.50 carriage and packing charge.
Free delivery is available on all standard stock orders over £100.00 (exclusive of VAT, Hazardous Chemical Delivery Surcharge)
Northern Island, Isle of Man, Scottish Highlands, Channel Islands and Scilly Isles:
Orders less than £250.00 are subject to a £12.00 carriage and packing charge.
Free delivery is available on all standard stock orders over £250.00 (exclusive of VAT, Hazardous Chemical Delivery Surcharge)
International :
We ship to most countries and carriage is quoted as extra. Please contact our international team for further information.
