Echotel Model 919 Ultrasonic Level Switch
2
2.0
Installation
2.1
Unpacking
Unpack the instrument carefully. Inspect all units for
damage. Report any concealed damage to carrier within
24 hours. Check the contents of the packing slip and
purchase order. Check and record the serial number for
future reference when ordering parts.
2.2
Electrostatic Discharge (ESD) Handling
Procedure
Magnetrol’s electronic instruments are manufactured to the
highest quality standards. These instruments use electronic
components that may be damaged by static electricity pres-
ent in most work environments.
The following steps are recommended to reduce the risk
of component failure due to electrostatic discharge.
• Ship and store circuit boards in anti-static bags. If an anti-
static bag is not available, wrap the board in aluminum
foil. Do not place boards on foam packing materials.
• Use a grounding wrist strap when installing and removing
circuit boards. A grounded workstation is recommended.
• Handle circuit boards only by the edges. Do not touch
components or connector pins.
• Make sure that all electrical connections are completely
made and none are partial or floating. Ground all equip-
ment to a good, earth ground.
2.3
Before You Begin
Each Model 919 is built to match the specific physical
specifications of the required installation. Make sure the
transducer process connection is correct for the threaded
or flanged mounting on the vessel or tank where the
switch will be located.
See Mounting, Section 2.4
.
For the relay version of the Model 919, make sure that the
input power will be 24 VDC ±10%. The all voltage version
of the 919 must be used in series with a load.
See Wiring,
Section 2.5
.
CAUTION
SENSITIVE ELECTRONIC DEVICES
DO NOT SHIP OR STORE NEAR STRONG
ELECTROSTATIC, ELECTROMAGNETIC,
MAGNETIC, OR RADIOACTIVE FIELDS
