Hardy Enviro Bench Scales - Manual (Page 9)

Section 3: Installation
12/09 4 0596-0315-01 Rev B
  IMPORTANT INSTALLATION NOTICE  
 All load cells, load cell cables, and interconnecting cables used to connect all scale components shall be
located a minimum of thirty-six (36”) inches distance away from all single and multiple phase high
energy circuits and electric current carrying conductors.
 This includes digital weight indicators, junction boxes, sectional controllers, and power supplies.
 This includes any peripheral devices, such as printers, remote displays, relay boxes, remote terminals,
card readers, and auxiliary data entry devices.
 Also included is the scale components themselves, such as 120 volt AC, 240 volt AC, 480 volt AC and
electric supply of higher voltage wiring runs and stations, AC power transformers, overhead or buried
cables, electric distribution panels, electric motors, florescent and high intensity lighting which utilize
ballast assemblies, electric heating equipment, traffic light wiring and power, and relay boxes.
 All scale components, including digital weight indicators and peripheral devices are not designed to
operate on internal combustion engine driven electric generators and other similar equipment.
 Electric arc welding can severely damage scale components such as digital weight
indicators, junction boxes, sectional controllers, power supplies, and load cells. For
additional information, please contact the Hardy Instruments Technical Services
Department.
3.2. MOUNTING AND WIRING THE INDICATOR
3.2.1 Basic Installation Steps
The Enviro™ Series Indicators arrive fully assembled. The factory default setting for the Enviro™ Series is
110 to 120 VAC. For 220 to 240 VAC operations, change the setting as shown below before powering up the
unit.
 Ensure the AC power cord is disconnected from any power sources.
 Remove the cover and place the unit face down on a bench.
 On the main PC board, locate the jumpers at J4
1. Remove the jumpers from the 117V positions and replace one of them on the 220V position as shown.