Section 7 Serial Interface; Installation - Hach EC1000 Instruction Manual

SECTION 7 SERIAL INTERFACE

7.1

Installation

WARNING
Wiring connected in this
box must be rated at least
300Vrms/600Vpk.
Note: Assembly and repair
must occur at an
electrostatic discharge
(ESD) safe workstation at
which the work surface,
tools, and operator are
properly grounded. ESD
can cause damage to the
electronics module,
including possible damage
to the microprocessor and
memory chips.
Note: Use a twisted-pair,
shielded cable. Use of
non-shielded cables may
result in radio wave
emission levels higher than
permitted under the
compliance
regulations listed.
ADVERTENCIA
Los cables de senalizacion conectados a esta caja deben tener una clasificacion de por lo menos
300Vrms/600Vpk.
ADVISO
A hacao dw sinal conectada nesta caixa deve ter classificaco de pelo menos 300Vrms/600Vpk.
ATTENTION
Le cablage de signalisation raccordé dans ce boîtier doit convenir pour une tension nominale
d'au moins 300Vrms/600Vpk.
WARNHINWEIS
Die diesem kasten angeschlossene signal verdrahtung mub nit mindestens 300Vrms/600Vpk
bemessen sein.
1. Determine the desired mode of operation and set the jumpers as needed (see
Figure 22).
2. Disconnect power to the meter.
3. Remove the front panel of the meter by removing the four corner screws. Disconnect
the existing wires from the front panel by unplugging the connector(s) (see Figure 18
on page 64).
4. Attach the serial interface board as shown in Figure 18 on page 64 and fasten with
three 6-32 screws.
5. Determine the wiring configuration (see Figure 22). Prepare wires by stripping the
outer jacket back 7 inches, and then cutting the shield wire to 3 inches.
6. Remove the wire shield (see Figure 17 on page 63) by removing the two screws. Route
the wires through the correct conduit fitting.
7. Connect the shield wires to the shield connection (see Figure 17 on page 63). Unplug
the RS-232 connector from the circuit board on the front panel, and hook up the wires
(see Figure 18 on page 64).
8. Replace the wire shield by routing the wires through the notches, and verifying that
the shield wire stays under the wire shield. Plug the connectors into the circuit board,
and replace the front panel of the meter.
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