Pulsafeeder Pulsar DLCM - Manual (Page 12)

6
A VOID LOCATIONS WHERE THE DLCM WOULD BE SUBJECTED TO EXTREME COLD OR HEAT
[ LESS THAN –18 ° C ELSIUS (0 ° F AHRENHEIT ) OR GREATER THAN 40 ° C ELSIUS (104 °
F
AHRENHEIT
)]
OR DIRECT SUNLIGHT
. F
AILURE TO OBSERVE THIS WARNING COULD DAMAGE
THE DLCM AND VOID ITS WARRANTY .
5.2 Installation Notes
1. The DLCM is a microprocessor based controller that uses electro-static sensitive CMOS components.
Do not make any electrical connections (high or low voltage) without adequately grounding the DLCM
and the worker to eliminate an electro-static charge between the two. A conductive wrist strap worn by
the worker and attached to the DLCM enclosure is adequate to satisfy this requirement.
2. Calibration is an important element of successful DLCM operation. Permanent installation of a
calibration column as depicted in Figure 1 is strongly recommended.
3. Conduit connections can carry fluids and vapors into the DLCM causing damage and void the
warranty. Care should be taken when installing conduit to protect against fluid/vapor entry. If
necessary, provide sealed entries or conduit drains near the point of entry.
5.3 Electrical Wiring
The DLCM has many advanced features that may make wiring the unit appear complicated. Wiring is
actually very simple – one high voltage connection is all that is required to take advantage of a majority
of the DLCM's features. It is highly recommended that you take a step-by-step approach to wiring and
confirming proper DLCM operation:
1. Make the high voltage connection. These will allow you to operate the DLCM and attached PULSAR
pump.
2. Power-up and test the DLCM to confirm the connections and check for proper operation.
3. Power-down the DLCM.
4. Decide which low voltage Inputs (e.g., 4-20mA in) will be used and make those connections.
5. Power-up and test the DLCM to confirm the connections and check for proper operation.
6. Power-down the DLCM.
7. Decide which low voltage Outputs (e.g., 4-20mA out) will be used and make those connections.
8. Conduct a final power-up and test the DLCM to confirm the connections and check for proper
operation.
9. Go to the Section 6 – Start Up Instructions for details on how to perform the power-up tests.