KMS-2/Exia/Exd Transmitter
Installation and Operating Manual
Page 3 of 16 KMS-2:Exia/Exd IOM
Rev H 18/05/10
ATEX
INSTALLATION GENERAL.
Magnetic Level Gauge Applications
The unit should be fitted to the level gauge with reference to Fig1 using the mounting clips and insulation
(if required) supplied. The unit should be positioned such that the XXXX marks around the circumference
align with the upper and lower vessel connection points.
Ensure that the sensing tube is not distorted or strained during installation
The fixing clips should be spaced evenly along the length of the tube with a maximum centre distance
1000mm
If it is required to remove the transmitter for maintenance work ensure that any
insulation is correctly fitted during reassembly to ensure operating temperatures are
maintained within the range specified on the EC type approval certificate.
Immersion or in tank installation
The transmitter should be fitted to the tank with reference to Fig.2. The distance between the tank
connection and electronic housing will vary dependent on temperature and for a weld on connection be
factory set. For Exd applications, the probe assembly is inserted into a vented sleeve configuration.
Caution
When using an adjustable sealing gland ensure that the maximum ambient temperature
for the electronic housing is not exceeded. (See technical data section).
Dependent on the length of the sensor tube an anchor point may be required at the bottom of the tank.
Where the transmitter is supplied with an adjustable gland care must be taken to
ensure that the electronic housing temperature is maintained within that is specified
in the hazardous area certificate. Please consult the sales office.
Use caution when handling the transmitter to ensure the probe is not bent during installation. A bend in
the probe could prevent the float from travelling freely up and down and it could damage the
magnetostrictive wire fitted inside.
Immersion applications are calibrated prior to installation by positioning the float at the desired 4 mA & 20
mA points.
Verify that the float will pass through the vessel opening. Note: the float is held on the probe by a C-clip
inserted into a groove machined into the tip of the probe. The float can be attached or removed by
removing and reinserting the C-clip. Ensure that the floats orientation is correct.
For Exd applications, the probe assembly is inserted into a vented sleeve assembly.
