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Tel: 01206 751166 Fax: 01206 751188
Laboratory Equipment
Laboratory Timer
and Timing Gate
A precision digital timer designed to measure the time interval between any two
events with high accuracy.
The timer has four operating modes: manual, free-fall mode, timing gates mode
and any other triggering start and stop.
The timer has a built-in power source for timing gates and the coil for ‘g’ by free
fall apparatus.
•
Display: LED 14mm
•
Suitable for use with ‘g’ by free-fall equipment
•
Supplied with timing gates & instruction manual
•
Eisco type LBTM
Rheostats
Useful for a variety of laboratory demonstrations, these rheostats
provide a variable resistance in electrical circuits.
Oxidized constantan wire is wound on a vitreous enamelled tube.
A sliding contact carriage, mounted on the slide bar, carries a phosphor
bronze contact for long life.
The rheostats have three binding
posts with 4mm sockets for electrical
connections: one at each end of the
winding and another at the end of
the slide bar.
•
Available in a range of
resistance values
Resistance in Ω Order code 1+
20
52-3337
£25.95
37
52-3336
£25.95
55
52-3334
£25.95
125
52-3335
£25.95
565527
Sorting Sieves
A set of six nesting sieves with plastic frames and stainless steel mesh.
The 6 sieves have varying sizes of mesh for sorting samples
by particle size. Ideal for separating soil samples, etc.
•
Mesh sizes:
#5 (4000 micron)
#10 (2000 micron)
#35 (500 micron)
#60 (250 micron)
#120 (125 micron)
#230 (63 micron)
•
Diameter 165mm
•
Complete with receiving pan and lid
•
Supplied as a
set of 6
•
Eisco type BI0139
Technical specification
Mesh # Opening size
(micron)
Opening size
(Inch)
Details
5
4000
0.151
Medium and large gravel will not pass
10
2000
0.0725
Small gravel will not pass
35
500
0.0173
Coarse sand will not pass
60
250
0.0092
Coarse and medium sand will not pass
120
125
0.0047
Very fine sand will not pass
230
63
0.0029
Fine sand will not pass, only very fine sand, silt and clay
Order code
52-3490
£44.95
Set of 6
Order code
52-3434
£89.95
From only
£25.95