Description
Principal features:
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A valuable diagnostic aid for Spirax Sarco boiler control installations.
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Compatible with all TDS / level probes and controllers.
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Noneedtofireboileroralterwaterlevels.
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No battery or power supply needed.
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Easy to operate.
CP10
connector
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Test
sockets
Toggle
switches
Potentio-
meter
Selector
switch
Limiting conditions
Maximum ambient temperature
Protection rating
Technical data
Conductivity probe settings
LP30
LP31
LP10-4
Capacitance probe range
55°C
IP40
22 Ω, 68 Ω, 220 Ω, 680 Ω
2.2 kΩ, 6.8 kΩ, 22 kΩ
6.8 kΩ / 15 kΩ
6.8 kΩ / 15 kΩ
68 kΩ / 150 kΩ
6.8 kΩ / 15 kΩ
0-10 volts output
Die-cast aluminium
Nylon (grey)
138
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Level probe
settings
(High sensitivity)
(Low sensitivity)
DIN 43650
connector
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Materials
Case
Coating
Dimensions
(approximate)
in mm
Weight
450 g
132
How to order
Example: 1 off Spirax Sarco APS1 probe simulator.
Boiler house
Level controls
Local regulations may restrict the use of this product to below the conditions quoted.
In the interests of development and improvement of the product, we reserve the right to change the specification without notice.
© Copyright 2015
APS1
Probe Simulator
The APS1 probe simulator is used in place of a level or conductivity probe to verify the correct operation of Spirax Sarco controllers. It can also
be used to diagnose wiring/probe faults. It is connected to the level probe or conductivity probe wiring, avoiding the need to fire the boiler or
alter water levels, and is quick and easy to use.
2.3.25
The APS1 has switch settings covering all Spirax Sarco probe types and ranges.
A potentiometer provides the variable input to a capacitance controller, and 4 mm test sockets are provided for connection of a multimeter, which
is used to check the voltage when simulating capacitance probes.
Switches simulate wet or dry (high or low resistance) conductivity level probe conditions, and resistors are built in to represent various conductivity
probe ranges.
The APS1 is powered by the controller under test, so needs no batteries or external power supply.
The unit is fitted with two inputs, connected in parallel. One is for connection of a PT2 or PT3 plug tail, and the other is a DIN 43650 connector as
used on conductivity and capacitance probes.
Full operating instructions are supplied with each unit.
Note: This is to illustrate the connection of an
LP20/LP30, which must be ordered seperately
as it is not supplied with the APS1 as standard.
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TI-P402-68
AB Issue 3
