Mag Probe Installation
Connecting Probes to the Console
30
Connecting Probes to the Console
Probe Wiring Precautions
To The Installer! You Must Read And Understand This Information.
INPUT/OUTPUT WIRING POSITIONS AND LABELING
In all cases, the devices wired to the console’s input/output terminal blocks must be recorded to prevent
improper connections during installation or service.
During programming, the probes wired to each position are
identified and stored in memory. If a probe is removed and reconnected to a different set of input terminals after
programming, the system will not properly recognize the data being received.
PROBE WIRING ASSIGNMENTS
Identify all probe wires according to their terminal block location using the self-adhesive numbering labels
furnished. As you connect probes to the console, record the tank number in which the probe is installed on the
Circuit Directory label (see item 1 in Figure 22).
IMPORTANT! Once a device has been wired to certain terminals and the system has been programmed, the wires
from that device may not be relocated to other terminals without reprogramming the system.
GROUNDING PROBE SHIELDS AND DRAIN WIRES
Connect probe cable shields and drain wires to ground in the console only, not at the field junction boxes. Do not
ground both ends of the shield.
CONNECTING PROBES TO THE CONSOLE - OBSERVE POLARITY
Connect the two color-coded/marked wires from the each probe to the appropriate terminals of the Probe Terminal
Block as shown in Figure 22.
WARNING
The equipment is used in location where lethal voltages and explosive vapors
or flammable fuels may be present.
Care must be taken when installing, servicing or replacing parts in the system
or serious injury or death from explosion, fire or shock may occur.
For this system:
1. Comply with the latest National Electric Code, federal, state, and
local codes, and any other applicable safety codes. In addition,
take necessary precautions during installation, service, and
repair to prevent personal injury, property loss and equipment
damage.
2. Refer servicing to trained and qualified personnel only.
3. Turn ‘Off’, lock out, and tag AC power to the console at the
breaker before opening the console panel cover and connecting
probe wires. Do not short any voltage across any barrier terminal
including probes.
4. Substitution of components may impair intrinsic safety.
OFF
