Interpreting diagnostic/error messages -30, Overview of typical load cell system -30 – Hardy HI 2151/30WC Single-Scale Controller User Manual

Page 150

Advertising
background image

HI 2151/30WC MANUAL

8-30

Out (Only setpoint #1
Is Active.

No partial setpoint lock out

10

Remote CAL (lb/Kg
Override for CAL
Switch

No remote CAL override

20

Zero Button Enable on
Key Lockout

No zero button enable

40

Remote Function Zero

Spare

KEY - BD

Indicates next display will be the keyboard test. Ensure the keyboard operates
properly by pressing each key, starting with the ZERO key in the upper left
corner of the keypad and moving from left to right. The LED will display each
key as it is pressed. Do not press the 0/exit key until you are ready to leave the
keyboard test.

IT

®

Section appears. Press the Exit key to resume weighing mode of operation.

Interpreting
Diagnostic/Error
Messages

These techniques are limited to external observations. Checking of
internal test points and voltages requires special test equipment and
exposure of the circuit cards during normal operation. This should only
be done by qualified technicians.

Overview of Typical
Load Cell System

1. The typical system consists of one or more load cells/points, a sum-

ming junction box, and a weight controller (the HI 2151/30WC).
(See Figure 8-1).

FIG. 8-1 TYPICAL LOAD CELL SYSTEM

a. Load Cell/Sensor/Point - is a strain gauge based force transducer,

which generates an electrical signal proportional to the load applied
to the scale. Load cells/points can be used any place a person needs

Advertising