7
Overview
3.4 Installing Transmitter Series CER-2000
The position of the electronic housing is depends on the welding position of the weld-on nipple. Before welding, locate weld-on nipple
so that the cable entry and the venting are in the right direction.
* DO NOT DAMAGE THE THREAD. *.
3.5 Mounting Position
When the transmitter is mounted horizontally, the cable gland MUST be pointed downwards.
3.6 Mounting Position Effect (Series 2000 and Series 2000-SAN)
All transmitters are calibrated in vertical position.
If the transmitter is mounted in a different position, there will be a little zero shift.
If the transmitter is mounted up, there is a zero shift (e.g. 4,03 mA instead of 4mA). If the transmitter is mounted down, there is
a zero shift (e.g. 3.97 mA instead of 4mA). After installation of the transmitter the zero must be set to 4.00 mA with “P103” in the
programming mode.
This will not affect the span.
3.7 Installing Transmitter Series 2000-Hydrobar
The diaphragms are protected by a special protection cap (PE). Do not remove this cap. When clogging is a problem, please contact
HAWK for other solutions.
DO NOT DAMAGE THE DIAPHRAGM.
3.8 Calibration
All transmitters are fully calibrated at the factory, to the conditions stipulated in users order. When the buyer has not requested
calibration, the transmitter will be calibrated at the maximum span.
3.9 Wiring
The push buttons “Zero”, “Span” and “Prog” are under the other cover (1).
External loads must be placed in the negative leg of the 2-wire loop.
The figure right shows the wiring connection of the transmitter. The 2-wires must
be connected to 3(-) and 4 (+) of the terminal board.
The transmitter must always be connected to earth.
The transmitter must be connected with standard two wire shielded cable.
Do NOT run signal wiring in open trays with power wiring, or near “heavy” electrical
equipment (E.g.: Frequency controller or heavy pumps). Shielding must always
be connected at the side of the power supply. In case the process connection is
already connected to ground (e.g. via the tank or pipe line) Do not connect the
instrument to ground. Please ensure that the instrument is not connected to ground
twice to prevent an ‘earth loop’. In applications with synthetic process connections,
the enclosure (internal or external) must be connected to ground. ensure that the
instrument is not connected to earth twice to prevent the occurrence of an ‘earth
loop’.
Note: In applications with synthetic mounting positions the case ground terminal
(internal or external) must be connected to earth.
Care must be taken to assure that the polarity of the power supply is correct, a
reversal of wiring polarity will not damage the transmitter, but it will not function
until the wiring is connected correctly.
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Connection
Transmitter
4-20 mA
External
Load
Series 2000 HART
