Rice Lake SURVIVOR 420HE User Manual

Page 1
SURVIVOR 420HE
Hostile Environment Digital Weight Indicator
Version 1.15
Installation Manual
87972 Rev A
Page 2
Page 3

Contents

About This Manual ................................................................................................................................... 1
Safety ....................................................................................................................................................... 1
1.0 Introduction.................................................................................................................................. 2
1.1 Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2 Front Panel Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.3 LED Annunciators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.4 Indicator Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4.1 Toggle Gross/Net Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4.2 Toggle Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4.3 Zero Scale. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4.4 Acquire Tare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4.5 Remove Stored Tare Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4.6 Set Date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4.7 Set Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.4.8 Display or Change Setpoint Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4.9 Turn Setpoint On or Off. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4.10 Print TIcket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.0 Installation ................................................................................................................................... 6
2.1 Unpacking and Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Enclosure Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Cable Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3.1 Cable Grounding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3.2 Load Cells. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.3 Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.4 Digital I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3.5 Analog Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Analog Output Module Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 Enclosure Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.6 Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.7 Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.0 Configuration ............................................................................................................................. 13
3.1 Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.1 Revolution Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.2 EDP Command Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1.3 Front Panel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.2 Menu Structures and Parameter Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.1 Configuration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.2 Format Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2.3 Calibration Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2.4 Serial Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2.5 Program Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2.6 Print Format Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.2.7 Setpoint Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.2.8 Digital Input Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2.9 Analog Output Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2.10 Version Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
© 2012 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.
Rice Lake Weighing Systems is an ISO 9001 registered company.
Specifications subject to change without notice.
Version 1.15, December 2012
Page 4
Rice Lake continually offers web-based video training on a growing selection
of product-related topics at no cost. Visit www.ricelake.com/webinars.
4.0 Calibration ................................................................................................................................. 27
4.1 Front Panel Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.2 EDP Command Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.3 Revolution® Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4 More About Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4.1 Adjusting Final Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4.2 A/D Counts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.0 EDP Commands.......................................................................................................................... 29
5.1 The EDP Command Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1.1 Key Press Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1.2 Reporting Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1.3 The RESETCONFIGURATION Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1.4 Parameter Setting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1.5 Soft Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.1.6 Normal Mode Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5.2 Saving and Transferring Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.2.1 Saving Indicator Data to a Personal Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
5.2.2 Downloading Configuration Data from PC to Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.0 Print Formatting ......................................................................................................................... 35
6.1 Print Formatting Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.2 Customizing Print Formats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.2.1 Using the EDP Port. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
6.2.2 Using the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.2.3 Using Revolution
® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
7.0 Appendix .................................................................................................................................... 38
7.1 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.1.1 Displayed Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.1.2 Using the XE EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.2 Status Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.2.1 Using the P EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.2.2 Using the ZZ EDP Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.3 Continuous Output (Stream) Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7.4 ASCII Character Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
7.5 Front Panel Display Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
7.6 Conversion Factors for Secondary Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
7.7 Digital Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7.7.1 DIGFLx Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7.7.2 DFSENS and DFTHRH Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
7.7.3 Setting the Digital Filter Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.8 Analog Output Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.9 Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
7.10 Regulatory Mode Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.11 LED Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
7.12 Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
420HE Limited Warranty ........................................................................................................................ 50
ii 420HE Installation Manual
Page 5

About This Manual

WARNING
WARNING
Important
WARNING
This manual is intended for use by service technicians responsible for installing and servicing 420HE hostile environment digital weight indicators. This manual applies to indicators using Version 1.14 of the
Configuration and calibration of the indicato command set, or the
Revolution
®
configuration utility. See Section 3.1 on page 13 for information about
r can be accomplished using the indicator front panel keys, the EDP
420HE software.
configuration methods.
Authorized distributors and their employees can view or download this manual from the Rice Lake Weighing Systems distributor site at
www.ricelake.com.
The Operator
Card included with this manual provides basic operating instructions for users of the 420HE. Please
leave the Operator Card with the indicator when installation and configuration are complete.

Safety

Safety Symbol Definitions
Indicates a potentially hazardous situation that, if not avoided, could result in serious injury or death, and includes hazards that are exposed when guards are removed.
Indicates information about procedures that, if not observed, could result in damage to equipment or corruption to and loss of data.
Safety Precautions
Do not operate or work on this equipment unless you have read and understand the instructions and warnings in this Manual. Failure to follow the instructions o death. Contact any Rice Lake Weighing Systems dealer for replacement manuals. Proper care is your responsibility.
Some procedures described in this manual require work are to be performed by qualified
service personnel only.
General Safety
Failure to heed may result in serious injury or death. DO NOT allow minors (children) or inexper DO NOT operate without all shields and guards in place. DO NOT step on the unit. DO NOT jump up and down on the scale. DO NOT use for purposes other than weight taking. DO NOT place fingers into slots or possible pinch points. DO NOT use any load-bearing component that is wo DO NOT use this product if any of the DO NOT exceed the rated load limit of the unit. DO NOT make alterations or modifications to the unit. DO NOT remove or obscure warning labels. DO NOT use near water. Before opening the unit, ensure the power cord Keep hands, feet and loose clothing away from moving parts.
ienced persons to operate this unit.
rn beyond 5% of the original dimension.
components are cracked.
is disconnected from the outlet.
r heed the warnings could result in injury or
inside the indicator enclosure. These procedures
420HE Installation Manual - 1
Page 6

1.0 Introduction

The 420HE is a single-channel digital weight indicator housed in a NEMA 4X/IP66-rated FRP enclosure. The indicator front panel consists of a large (1.8 in, 44.5 mm), six-digit, seven-segment LED display and six-button keypad. Features include:
Drives up to eight 350or sixteen 700 load cells
Supports 4- and 6-wire load cell connections
Two configurable digital inputs
Two configurable digital outputs
Electronic data processing (EDP) port for full duplex, RS-232 communications at up to 38400 bps
Printer port for full duplex RS-232 or active transmit only 20 mA current loop communications at up to 38400 bps
Optional analog output module provides 0–10 VDC or 0–20/4–20 m A tracking of gross or net weight values
Available in 115 VAC and 230 VAC versions
The 420HE is NTEP-certified and pending Measurement Canada approval for Classes III, III HD, and III L at 10,000 divisions. See

1.1 Operating Modes

The 420HE has four modes of operation:
Normal (Primary) mode
Normal mode is the “default” mode of the indicator. The indicator displays gross or net weights as required, using the LED annunciators described in Section 1.3 on page 3 to indicate scale status and the type of weight value displayed. Once configuration is complete and a legal seal is affixed to the back of the indicator, this is the primary mode in which the 420HE can operate.
Section 7.12 on page 49 for detailed specifications.
Setup mode
Most of the procedures described in this manual require the indicator to be in setup mode, including configuration and calibration.
To enter setup mode, open enclosure and press the setup switch once. The indicator display changes to show the word CONFIG.
Test mode
Test mode provides a number of diagnostic functions for the 420HE indicator. Like setup mode, test mode is entered using the setup switch. See test mode.
NOTE: Test mode is intended for factory use only.
Front Panel Setup Mode
Hold the UNITS key for three seconds to enter front panel setup mode. Use front panel setup to change setpoint and to set the time and date.
Section 7.9 on page 47 for more information about entering and using
2 420HE Installation Manual
Page 7

1.2 Front Panel Keypad

WARNING
Figure 1-1 shows the 420HE LED annunciators, keypad, and normal mode key functions.The symbols shown above the keys (representing up, down, left, right) describe the key functions assigned in setup mode. In setup mode, the keys are used to navigate through menus, select digits within numeric values, and increment/decrement values. See Section 3.1.3 on page 14 for information about using the front panel keys in setup mode.
enter,
420HE also has a POWER key. Use the POWER key
The to turn the indicator on or off.
The 420HE has an on/off switch for the load cells and processor functions. Before
opening t disconnected from the power outlet. The power outlet must be located near the indicator to allow the operator to easily disconnect power to the unit.
he unit, ensure the power cord is

1.3 LED Annunciators

The 420HE display uses a set of six LED annunciators to provide additional information about the value being displayed:
Figure 1-1. 420HE Front Panel, Showing LED Annunciators and Normal Mode Key Functions
Gross and Net annunciators are lit to show whether the displayed weight is a gross or net weight.
Center of zero (
): Gross weight is within 0.25 graduations of zero. This annunciator lights when the
scale is zeroed.
Standstill ( functions and printing, can only be done when
lb and kg annunciators indicate the units associated with the displayed value: lb=pounds, kg=kilograms.
The displayed units can also be set to short tons
): Scale is at standstill or within the specified motion band. Some operations, including tare
the standstill symbol is shown.
(tn), metric tons (t), ounces (oz), grams (g), or NONE (no units information displayed). The lb and kg LEDs function as primary and secondary units annunciators for some combinations of primary and secondary units. If neither primary nor secondary units are lb or kg the annunciator is lit for primary units, kg for secondary units.
420HE Installation Manual - Introduction 3
lb
Page 8
Table 1-1 shows which annunciators are used for all combinations of configured primary and secondary units. For example:
If the primary unit is pounds (lb) and the
kg for secondary units.
units,
If the primary unit is pounds (lb) and the secondary unit
secondary unit is kilograms (kg), the lb LED is lit for primary
is short tons (tn), the lb LED is lit for primary units, kg for secondary units. There is not an LED for short tons, so the kg LED is used as the secondary units annunciator.
If the primary unit is short tons (tn) and the (tn), and
kg is lit for secondary units (lb). Because there is no LED for short tons, the lb and kg LEDs are
secondary unit is pounds (lb), the lb LED is lit for primary units
used as primary and secondary units annunciators.
See Section 3.2.2 on page 17 for more information about configuring primary and secondary display units.
Secondary Unit
Primary Unit
lb lb / lb lb / kg lb / oz lb / g lb / kg kg kg / lb kg / kg kg / oz kg / g lb / kg oz oz / lb oz / kg oz / oz oz / g oz / kg
g g / lb g / kg g / oz g / g g / kg
tn lb / kg lb / kg lb / oz lb / g lb / lb lb / kg lb / kg
t lb / kg lb / lb lb / kg
none lb / kg lb / kg lb / lb
Table 1-1. Units Annunciators, Showing Primary / Secondary LEDs Used for All Configurations
lb kg oz g tn t none

1.4 Indicator Operations

Basic 420HE operations are summarized below.

1.4.1 Toggle Gross/Net Mode

Press the GROSS/NET key to switch the display mode from gross to net, or from net to gross. If a tare value has been entered or acquired, the net value is the gross weight minus the tare.
Gross mode is shown by the mode is shown by the

1.4.2 Toggle Units

Net annunciator.
Gross annunciator; net
Press the UNITS key to switch between primary and secondary units. The appropriate units LED under the display is lit.

1.4.3 Zero Scale

1. In gross mode, remove all weight from the scale and wait for the standstill annunciator
(
).

1.4.5 Remove Stored Tare Value

1. Remove all weight from the scale and wait for the standstill annunciator (
2. Press the
TARE key. The Gross annunciator is
lit.

1.4.6 Set Date

In front panel setup mode use the arrow keys to toggle
DATE. Press DOWN or ENTER to enter the date in the
to format configured for the indicator. See Figure 1-2 5.

1.4.7 Set Time

In front panel setup mode use the arrow keys to toggle
TIME. Press DOWN or ENTER to enter the time in
to 24-hour format, then press the Figure 1-2 5.
).
ENTER key. See
2. Press the
ZERO key. The center of zero ( )
annunciator lights to indicate the scale is zeroed.

1.4.4 Acquire Tare

1. Place container on scale and wait for the standstill annunciator (
2. Press the
TARE key to acquire the tare weight
).
of the container. Net weight is displayed and net annunciator is lit.
4 420HE Installation Manual
Page 9
SETPNT
number
V ALUE
number
BNDVAL
number
HYSTER
OFF
ON
ENABLE
SETPT2
Sub Menu – Press and hold UNITS key for three seconds
SETPT1
Same as SETPT 1
T/DATE
DATE
010104
TIME
0000
NOTE: Only Available when ACCESS = ON
See Figure 3-11 on page 23 and Table 3-7 on page 24 for more information.
NOTE: The indicator will begin
incrementing time at power up.
Figure 1-2. Front Panel Setpoint Setup

1.4.8 Display or Change Setpoint Value

To display a setpoint value, enter front panel setup mode. Press
LEFT/RIGHT keys toggle through both setpoints if
operator accessible. Press
ENABLE. Use the LEFT/RIGHT keys to toggle to VALUE.
Press
DOWN or ENTER to display SETPT1. The
DOWN or ENTER to display
DOWN or ENTER to view the value. See
Figure 1-2.
NOTE: Setpoint Value, Band Value and Hysteresis can
be accessible from the front panel in the weigh mode. To change the setpoint value, use the
UP/DOWN keys to
increment/decrement the decimal value of the flashing digit. Press
LEFT/RIGHT keys adjust the decimal point placement.
Press the
ENTER to move to the decimal point entry.
ENTER key to accept the displayed value and
return to the next value or setpoint number prompt. Press the
UP key once more to exit. See Figure 1-2.
UP key until SETPNT is displaye d. Press the

1.4.9 Turn Setpoint On or Off

To turn a setpoint on or off at the front panel, enter front panel setup mode. Press display
SETPT1.The LEFT/RIGHT keys toggle through
each setpoint that is operator accessible. Press
ENTER and ENABLE is displayed. Press RIGHT or LEFT to
turn the setpoint
SETPNT is displayed. Press UP once more to exit.

1.4.10 Print TIcket

ON or OFF. Press the UP key until
DOWN or ENTER again to
DOWN or
1. Wait for standstill annunciator ( ).
2. Press the
PRINT key to send data to the serial
port.
420HE Installation Manual - Introduction 5
Page 10

2.0 Installation

CAUTION
Power Cord Communications Access
Load Cell
Cable
Bottom View
Front of Indicator
This section describes procedures for connecting load cells, digital inputs, and serial communications cables to the
420HE indicator. Instructions for field
installation of the analog output option and replacement of the CPU board are included, along with assembly drawings and parts lists for the service technician.
Use a wrist strap to ground yourself and protect components from electrostatic discharge (ESD) when working inside the indicator enclosure.
This unit uses line fusing which could create an electric shock hazard. inside the indicator must be performed by qualified service personnel only.
The supply cord serves as the main power disconnect for supplying the indicator must be installed near the unit and be easily accessible
Procedures requiring work
the
420HE. The power outlet

2.1 Unpacking and Assembly

Immediately after unpacking, visually inspect the
420HE to ensure all components are included and
undamaged. The shipping carton should contain the indicator, this manual, and a parts kit. If any parts were damaged in shipment, notify Rice Lake Weighing Systems and the shipper immediately.
The parts kit (PN 87973) contains the items listed
low:
be
Two, six-position screw terminals (PN 70599) for connectors J4 & J1, two, three-position screw terminals (PN 71125) for connectors J2 and J3, and one, four-position screw terminal (PN 71126) for connector J6 (see figure 2-3).
Three reducing glands (PN 15664).
One capacity label (PN 42350).
Three each of grounding clamps (PN 53075), ext
ernal tooth lock washers (PN 15134), and kep nuts (PN 14626) for cable shield grounding against the enclosure.
One capacity label (PN 85552).
Annunciator labels (PN 85555), replacement overla
y decals for labeling primary and secondary
units LEDs.
Three reducing glands (PN 15664) used in cord grips for
cable size less that 1/4 in.

2.3 Cable Connections

The 420HE provides four cord grips for cabling into the indicator: one for the power cord, three to accommodate load cell, communications, digital inputs, and analog output cables. Two of the three free cord grips come with a plug installed to prevent moisture from entering the enclosure. Depending on your application, remove the plug from any cord grip that will be used and install cables as required.
Figure 2-1 shows the recommended assignments for
420HE cord grips.
the
Figure 2-1. Recommended Cord Grip Assignments

2.2 Enclosure Disassembly

The indicator enclosure must be opened to connect cables for load cells, communications, digital inputs, and analog output.
Ensure power to the indicator is disconnected, then place the draw latches, located at the two front corners of the indicator. See Figure 2-4 9.
6 420HE Installation Manual
indicator on an antistatic work mat. Unhook
Page 11

2.3.1 Cable Grounding

Cord grip
Insulated cable
Foil (silver side out)
Grounding clamp
Shield wir e (cut)
Length of foil before folding back on cable insulation
Cut insulation here for foil-shielded cables
Braid
Cut insulation here for braided cables
NOTE: Install lockwashers first, against backplate, under grounding clamp
C7
RESET
R2
C15
C20
C19
R5
MECCA
C3
+5A V
R1
C13
R16
LED2
GND
GD1
C1
F1
DI 2
DI 1
DFB2
TR1
TVS2
TVS3
TVS6
C33
C31
DO2
DO1
C10
C9
+5V
G2E
R25
C30
VR3
R6
C8
U7
C5
C6
U8
R15
U1
LED1
EDP/ RS-232
JP2
C65
U3
SW1
SETUP
C32
C2
XT1
DFB1
TR2
TVS1
TVS5 TVS4
+3. 3
R7
R4
C16
C4
DIGIN
1
J1
LOAD CELL
U2
D1
U19
U6
U9
SERIAL
1
9
11
2
8
1
1
Gn d
20mA+
Gnd
TxD
Gnd
Gn d
DI 2
EXC-
19
20
E XC+
SEN-
SEN+
SIG-
1
5
1
1
1
20mA-
RxD
RxD
TxD
DI 1
SIG+
Micr o­pr ocesso r
DISPLA Y DRIVERS
KEYPAD
CONNECTOR
ANALOG OUTPUT
OPTION CARD
REMOTE SETUP SWITCH
DC INPUT
R9
R10
R11
R12
ANA
ME M
AD
HB
J9
J10
U4
OFF TEST
A/D CONVERTER
U10
U11
J2 J3 J4
J7
J8
J11
J12
JP1
J1
4
3
2
1
JP2
POS 1 POS 2
JP 1
POS 1
POS 2
DIGOUT
1
+5V
DO2
Gnd
DO1
J6
R46
R47
U14
JMP3
(Factory Only)
ON
OF F
KEYPAD
CONNECTOR
HE_J2
1 2
B1
+
Except for the power cord, all cables routed through the cord grips should be grounded against the CPU mounting plate. Do the following to ground shielded cables:
Use the lockwashers, clamps, and kep nuts provided in the parts kit to install grounding clamps on the enclosure studs adjacent to cord grips. Install grounding clamps only for cord grips that will be used; do not tighten nuts.
Route cables through cord grips and grounding clamps to determine cable lengths required to reach cable connectors. Mark cables to remove insulation and shield as described below:
For cables with foil shielding, strip insulation and f
oil from the cable half an inch (15 mm) past the grounding clamp (see Figure 2-2). Fold the foil shield back on the cable where the cable passes through the clamp. Ensure silver (conductive) side of foil is turned outward for contact with the grounding clamp.
For cables with braided shielding, strip cable in
sulation and braided shield from a point just past the grounding clamp. Strip another half inch (15 mm) of insulation only to expose the braid where the cable passes through the clamp (see Figure 2-2).
For load cell cables, cut the shield wire just past the
grounding clamp. Shield wire function is provided by contact between the cable shield and the grounding clamp.
Route stripped cables through cord grips and cla
mps. Ensure shields contact grounding clamps as shown in Figure 2-2. Tighten grounding clamp nuts.
Finish installation using cable mounts and ties to secur
e cables inside of indicator enclosure.
Figure 2-2. Grounding Clamp Attachment for Foil-Shielded
and Braided Cabling
Figure 2-3. 420HE CPU and Power Supply Board with Analog Output Option Card
420HE Installation Manual - Installation 7
Page 12

2.3.2 Load Cells

Note
Using one of the 6-position connectors, provided in the parts kit, wire the load cell cable from the load cell or junction box to connector J1 on the CPU board (See Figure 2-3 7). If using six-wire load cell cable (with sense wires), remove jumpers JP1 and JP2 before reinstalling co four-wire installation, leave jumpers
nnector J1 (see Figure 2-3). For
JP1 and JP2 on. When connections are complete, reinstall connector J1 onto the header so that it snaps securely into place. Use two cable ties to secure the load cell cable to the inside of the enclosure.
J1 Pin Function
1 2 3 4 5 6
+SIG
–SIG +SENSE –SENSE
+EXC –EXC
Table 2-1. J1 Pin Assignments
Use grounding procedures described in Section 2.3.1 on page 7
For 6-wire connections, remove jumpers JP1 and JP2
For 4-wire connections, leave jumpers JP1 and JP2 on

2.3.3 Serial Communications

Using one of the six-position connectors, provided in the parts kit, wire the serial communications cables to J4. Connector J3 provides connections for the EDP/ RS-232 port. Connect communications cables to connectors J3 and J4 as shown in Table 2-2.
Once cables are attached, reconnec
t J3 and J4 to the headers on the board (see Figure 2-3). Use cable ties to secure serial cables to the inside of the enclosure.
The EDP port supports full duplex RS-232 communications only; the
serial port provides either active 20 mA output or full duplex RS-232. Both ports are configured using the SERIAL menu. See Section 3.0 on page 13 for configuration information.
Port Connector Pin Label
1
EDP/RS-232 J3
TxD
2
RxD
3
Gnd
Port Connector Pin Label
Serial Port J4
1
TxD
2
RxD
3
Gnd
4
20mA+
5
20mA–
6
Gnd
Table 2-2. J3 and J4 Pin Assignments

2.3.4 Digital I/O

Digital inputs can be set to provide several indicator functions, including all keypad func tions. The inputs are active (on) with low voltage (0 VDC) and can be driven by TTL or 5V logic without additional hardware. Use the DIG IN menu to configure the digital inputs. LED’s on the CPU board light when digital inputs are active.
Digital outputs are typically used to
control relays that drive other equipment. Outputs are designed to sink not source, switching current. Each output is a normally open connector circuit, capable of sinking 250 mA when active. Digital outputs are wired to switch relays when the digital output is active (low, 0 VDC) with reference to 5 VDC supply. LEDs on the CPU board light when the digital outputs are active.
Port Connector Pin Label
Digital Input J2
Digital Output
J6
1 DI 1 2 DI 2 3 Gnd 1 Gnd 2 DO 1 3 DO 2 4 +5V
Table 2-3. J2 and J6 Pin Assignments

2.3.5 Analog Output

If the optional analog output module is installed, attach the output cable to connector J1 on the analog output board. Table 2-4 on page 9 lists the analog output pin assignments.
Use the ALGOUT menu to configure and calibrate
the analog output module when cabling is complete. See Section 2.4 for information about
installing the analog
output module.
Table 2-2. J3 and J4 Pin Assignments
8 420HE Installation Manual
Page 13
Pin Signal
Draw Latches
NTEP Approved Seal
Top of Indicator
1 + Current Out 2 – Current Out 3 + Voltage Out 4 – Voltage Out
Table 2-4. Analog Output Module Pin Assignment

2.4 Analog Output Module Installation

To install or replace the analog output module (PN
85659), follow the steps listed in Section 2.2 on page 6 for opening the
420HE enclosure.
Mount the analog output module on its standoffs in the location shown in Figure 2-3 7 and plug the module input into connector J9 on the
420HE board. Connect
output cable to the analog output module as shown in Table 2-4, then reassemble the enclosure (Section 2.5).
See Figure 7.8 46 for analog output calibration procedures.

2.5 Enclosure Reassembly

Once cabling is complete, close front cover and hook draw latches. See Figure 2-4
below.

2.6 Board Removal

If you must remove the 420HE CPU board, use the following procedure:
1. Disconnect power to the indicator.
2. Open indicator using draw latches.
3. Disconnect power supply cable from connector
420HE CPU board.
the
J7 on
4. Unplug connectors J1 (load cell cable), J2 (digital inputs), J3 (EDP/RS-232), J4 (serial co
mmunications), J6 (digital outputs), HE_J2 (display) and J10 & J11 (keypad ribbon cables). If an analog output board is installed, disconnect the analog output cable. See Figure 2-3 7 for connector locations.
5. Remove the five screws from the CPU board, then lift t
To replace the CPU board, reverse the above procedure. Be sure to reinstall cable ties to secure all ca
bles inside the indicator enclosure.
he board out of the enclosure.
Figure 2-4. 420HE Draw Latches and NTEP Seal
420HE Installation Manual - Installation 9
Page 14

2.7 Replacement Parts

Table 2-5 lists replacement parts for the 420HE, including all parts referenced in Figures 2-5 and 2-6.
Ref
Number
1 14842 2 87962 3 58248 4 82856 5 72996 6 14822 7 16774 8 58096
9 87808 10 14839 11 14875 12 87966 13 87958 15 15655 16 15656 17 85202 18 87971 19 87969 20 15895 21 87967 22 15650 23 88189 24 88191 26 16892 27 19538 28 87968 29 14626 30 15134 31 15631
PN Description (Quantity) Figure
Screws, 32NC x 5/16 (6) See Figure 2-5 11 Enclosure (1) Lock nut, hex 32NC Power supply bracket (1) Power supply, 12V board (1) Screws, 40NC x 1/4 (4) Fuse cover, 5 x 20mm (1) Standoffs, female - female (6) LED display board, 2 in. high (1) Screws, 32NC x 1/4 (11) Screws, 32NF x 3/8 (10) Panel assembly, mounting (1) CPU board (1) Cable grips, 8 NPT (3) Lock nut, 8 NPT (3) Power cord, 120 VAC (1) See Figure 2-6 12 Switch assembly, 6 pushbutton (1) See Figure 2-5 11 Filter lens (1) Switch cover, SRVR NEMA 4X (6) Cable assemly (1) See Figure 2-6 12 Cable tie mounts, 3/4 in. (8) Switch cable assembly (1) Ribbon cable, 17 in, (1) Earth ground label (1) Post only, slotted black (2) Overlay panel (1) kep nuts, 32NC hex (1) Lock washer, no. 8, type A (1) Cable ties, nylon, 3 in. (10)
54224 30911 85555 15664 87972
Fuse, 4 Amp, 250V, 5x20mm (1) Mounting Foot Kit (1) Annunciator Labels (2) Cord grip reducing glands, less than 1/4 in. cable size (3) Operation manual (1)
10 420HE Installation Manual
Table 2-5. Replacement Parts
Page 15
To Power Supply
From Power Supply
From Power Supply
1
2
3
4
5
6
7
8
9
10
11
12
13
15
18
19
20
16
Figure 2-5. 420HE Assembly Drawing
420HE Installation Manual - Installation 11
Page 16
Grounding Detail
Ground Wire From Power Cord (17)
Ground Screw In Bottom Panel (12)
2X Cable Tie Wires Using 2 Holes Provided In Bracket
Wire Tie Squares
29
30
28
22
21
27
26
31
17
24
23
12 420HE Installation Manual
Figure 2-6. 420HE Assembly Drawing
Page 17

3.0 Configuration

T o configure the 420HE indicator , the indicator must be placed in setup mode. The setup switch is accessed by opening the enclosure and pressing the setup switch.
When the indicator is placed in setup mode, the word
CONFIG is shown on the display. The CONFIG menu is
the first of ten main menus used to configure the indicator. Detailed descriptions of these menus are given in Section 3.2 on page 15. When configuration is complete, return to the CONF
IG menu and press the
(ZERO) key to exit setup mode.

3.1 Configuration Methods

The 420HE indicator can be configured by using the front panel keys to navigate through a series of configuration menus or by sending commands or configuration data to the EDP port. Configuration using the menus is described in Section 3.1.3 on page 14.
Configuration using the EDP port can be accomplished
ing either the EDP command set described in
us Section 5.0 or the

3.1.1 Revolution Configuration

The Revolution configuration utility provides the preferred method for configuring the
Revolution runs on a personal computer to set
configuration parameters for the indicator. When
Revolution configuration is complete, configuration
data is downloaded to the indicator.
Revolution® software.
420HE indicator.
To use
Revolution, do the following:
1. Install the
Revolution module on an
IBM-compatible personal computer running Windows
®
98 or later. Minimum system requirements are 4MB of extended memory and at least 5MB of available hard disk space.
2. With both indicator and PC powered off, connect
the PC serial port to the indicator EDP
port.
3. Power up the PC and the indicator. Use the setup switch
to place the indicator in setup
mode.
4. Start the
Figure 3-1 shows an example of one of the
Revolution program.
Revolution
configuration displays.
Revolution provides online help for each of its
configuration displays. Parameter descriptions provided in this manual for front panel configuration can also be used when configuring the indicator using
Revolution: the interface is different, but the
parameters set are the same.

3.1.2 EDP Command Configuration

The EDP command set can be used to configure the
420HE indicator using a personal computer, terminal,
or remote keyboard. Like
Revolution, EDP command
configuration sends commands to the indicator EDP port; unlike
Revolution, EDP commands can be sent
using any external device capable of sending ASCII characters over a serial connection.
EDP commands duplicate the fu
nctions available using the indicator front panel and provide some functions not otherwise available. EDP commands can be used to simulate pressing front panel keys, to configure the indicator, or to dump lists of parameter settings. See Section 5.0 on page 29 for more information about using the EDP command set.
Figure 3-1. Sample Revolution Configuration Display
Revolution
supports both uploading and downloading of indicator configuration data. This capability allows configuration data to be retrieved from one indicator, edited, then downloaded to another.
420HE Installation Manual - Configuration 13
Page 18

3.1.3 Front Panel Configuration

Move UP/
Increrement
Value
ENTER
value
Move LEFT/
Previous
Move RIGHT/
Next
Move DOWN/
Decrement
Value
1st Level
Parameter
Default value
Value
When moving thr ough values below the first menu level, press to r etur n to the level above. Press or to move to the next parameter on the level above
1st Level
Parameter
2
nd
Level
Parameter
2
nd
Level
Parameter
Value
Value
The 420HE indicator can be configured using a series of menus accessed through the indicator front panel when the indicator is in setup mode. Table 3-1 summarizes the functions of each of the main menus.
Menu Menu Function
CONFIG Configuration Configure grads, zero tracking, zero range, motion ban
and digital filtering parameters. FORMAT Format Set format of primary and secondary units, display rate. CALIBR Calibration Calibrate indicator. See Section 4.0 on page 27 for calibration procedures. SERIAL Serial Configure EDP and printer serial ports. PROGRM Program Set power-up mode, regulatory mode,
and consecutive number values.
PFORMT Print Format Set print format used for gross and net tickets. See Section 6.0 on page 35 for more
information. SETPNT Setpoint Configure Setpoints and digital outputs. DIG IN Digital Input Assign digital input functions. ALGOUT Analog Output Configure analog output module. Used only if
analog output option is installed.
VERS Version Display installed software version number.
Table 3-1. 420HE Menu Summary
d, overload, tare function, sample rate,
Figure 3-2. Front Panel Key Functions in Setup Mode
Four front panel keys are used as directional keys to navigate thro ugh the menus in setup mode (see Figu re 3-2).
UNITS ( ) and PRINT ( ) keys scroll left and right (horizontally) on the same menu level; ZERO ( ) and
The
GROSS/NET ( ) move up and down (vertically) to different menu levels. The TAR E key ( ) serves as an Enter ke y
for selecting parameter values within the me
nus. A label above each of these keys identifies the direction provided
by the key when navigating through the setup menus.
14 420HE Installation Manual
Figure 3-3. Setup Mode Menu Navigation
Page 19
To select a parameter, press or to scroll left or
When editing numeric values, press or to change the digit selected. Press or to increment or decrement the value of the selected digit.
Press to save the value entered and return to the level above.
XXXXXXX XXXXXXX XXXXXXX XXXXXXX
GRADS
10000
0
number
ZTRKBN ZRANGE
1.900000
MOTBAN
FS+2%
FS+9D
FS+1D
FS
OVRLOA
1
4
2
8
DIGFL1
32
16
64
number
1
4
2
8
DIGFL2
32
16
64
1
4
2
8
DIGFL3
32
16
64
BOTH
PBTARE
NOT ARE
KEYED
T AREFN
ALGOUT DIG IN SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
8OUT
32OUT
16OUT
64OUT
DFSENS DFTHRH
2OUT
128OUT
4OUT
2DD
NONE
5DD
20DD
10DD
50DD
200DD
100DD
250DD
15HZ
60HZ
30HZ
7.5HZ
SMPRAT
VERS
number
1
number
right until the desired menu group appears on the displa
y, then press
to move down to the submenu or parameter you want. When moving through the menu parameters, the default or pre
viously selected value
appears first on the display. T o change a parameter value, scroll left or right to view
the values appears on the display, press
for that parameter. When the desired value
to select the value and
move back up one level. To edit numerical values, use
e navigation keys to select the digit and to increment
th or decrement the value.
Figure 3-4. Editing Procedure for Numeric Values

3.2 Menu Structures and Parameter Descriptions

The following sections provide graphic representations of the 420HE menu structures. In the actual menu structure, the settings you choose under each parameter are arranged horizontally. To save page space, menu choices are shown in vertical columns. The factory default setting appears at the top of each column in bold type.
Most menu diagrams are accompanied by a table that describes all parameters with that menu. Default parameter values are shown in bold type.

3.2.1 Configuration Menu

and parameter values associated
Figure 3-5. Configuration Menu
420HE Installation Manual - Configuration 15
Page 20
CONFIG Menu
Parameter Choices
Level 2 submenus
GRADS 10000
number
ZTRKBND 0
number
ZRANGE 1.900000
number
MOTBAND 1
number
OVRLOA FS+2%
FS+1D FS+9D FS
SMPRAT 15HZ
30HZ 60HZ
7.5HZ
DIGFL1 DIGFL2 DIGFL3
2
4 8 16 32 64 1
DFSENS 8OUT
16OUT 32OUT 64OUT 128OUT 2OUT 4OUT
Description
Graduations. Specifies the number of full scale graduations. The value entered must be in the range 1–100 000 and should be consistent with legal requirements and environmental limits on system resolution.
To calculate GRADS, use the formula, GRADS = Capacity / Display Divisions. Display divisions for primary and secondary units are specified on the FORMAT menu.
Automatically zeroes the scale when within the range specified, as long as the input is within the ZRANGE and scale is at standstill. Specify the zero tracking band in ± display divisions. Maximum legal value varies depending on local regulations.
NOTE: For scales using linear calibration, do not set the zero tracking band to a value greater than that specified for the first linearization point.
Selects the range within which the scale can be zeroed. The 1.900000 default value is ±
1.9% around the calibrated zero point, for a total range of 3.8%. Indicator must be at standstill to zero the scale. Use the default value for legal-for-trade applications.
Sets the level, in display divisions, at which scale motion is detected. If motion is not detected for 1 second or more, the standstill symbol lights. Some operations, including print, tare, and zero, require the scale to be at standstill. Maximum legal value varies depending on local regulations.
If this parameter is set to 0, the standstill annunciator will be set continuously on, and operations including zero, print, and tare will be performed regardless of scale motion. If 0 is selected, ZTRKBND must also be set to 0.
Overload. Determines the point at which the display blanks and an out-of-range error message is displayed. Maximum legal value varies depending on local regulations.
Sample rate. Selects measurement rate, in samples per second, of the analog-to-digital converter. Lower sample rate values provide greater signal noise immunity.
Digital filtering. Selects the digital filtering rate used to reduce the effects of mechanical vibration from the immediate area of the scale.
Choices indicate the number of A/D conversions that are averaged to obtain the displayed reading. A higher number gives a more accurate display by minimizing the effect of a few noisy readings, but slows down the settling rate of the indicator. See Section 7.7 on page 45 for more information on digital filtering.
Digital filter cutout sensitivity. Specifies the number of consecutive readings that must fall outside the filter threshold (DFTHRH parameter) before digital filtering is suspended. If NONE is selected, the filter is always enabled.
Table 3-2. Configuration Menu Parameters
16 420HE Installation Manual
Page 21
XXXXXXX XXXXXXX XXXXXXX XXXXXXX
DSPDIV MULT UNITS DECPNT
0.453592
5D
2D
1D
number
PRIMAR SECNDR
6SEC
4SEC
3SEC
2.5SEC
2SEC
1.5SEC
750MS
500MS
250MS
8SEC
DSPRAT
DSPDIV UNITS DECPNT
KG 888880
888888
1D
5D
2D
LB
88888. 8
8888.88
888.888
88.8888
8.88888
888880
888888
88888.8
8888.88
888.888
88.8888
8.88888
T
TN
NONE
TN
KG
T
LB
ALGOUT DIGI N SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
1SEC
VERS
OZ
OZ
G
G
NONE
Only used if UNITS =NONE
CONFIG Menu
Parameter Choices
DFTHRH NONE
2DD 5DD 10DD 20DD 50DD 100DD 200DD 250DD
TAREFN
Description
Digital filter cutout threshold. Spe
cifies the filter threshold, in display divisions. When a specified number of consecutive scale readings (DFSENS parameter) fall outside of this threshold, digital filtering is suspended. If NONE is selected, the filter is always enabled.
Tare function. Enables or disables push-button and ke
yed tares. Possible values are:

3.2.2 Format Menu

BOTH
NOTARE PBTARE KEYED
BOTH:Both push-button and keyed tares are enabled NOTARE:No tare allowed (gr
oss mode only) PBTARE:Push-button tares enabled KEYED:Keyed tare enabled
Table 3-2. Configuration Menu Parameters (Continued)
FORMAT Menu
Parameter Choices Description
Level 2 submenus
PRIMAR DECPNT
DSPDIV UNITS
SECNDR DECPNT
DSPDIV UNITS MULT
Figure 3-6. Format Menu
Specifies the decimal position, display divisions, and Level 3 submenu parameter descriptions.
Specifies the decimal position, display divisions, units, and conversion multiplier used for the secondary units. See Level 3 submenu parameter descriptions.
Table 3-3. Format Menu Parameters
units used for the primary units. See
420HE Installation Manual - Configuration 17
Page 22
FORMAT Menu
Parameter Choices Description
DSPRAT 250MS
500MS 750MS 1SEC
1.5SEC 2SEC
2.5SEC 3SEC 4SEC 6SEC 8SEC
Level 3 submenus
Primary Units (PRIMAR Parameter)
DECPNT 888888
888880
8.88888
88.8888
888.888
8888.88
88888.8
DSPDIV 1D
2D 5D
UNITS LB
KG OZ TN T G NONE
Secondary Units (SECNDR Parameter)
DECPNT 88888.8
888888 888880
8.88888
88.8888
888.888
8888.88
DSPDIV 5D
1D 2D
UNITS KG
OZ TN T G NONE LB
MULT 0.453592
Enter other choices via keyboard
Display rate. Sets the update rate for displayed values. Values are in milliseconds (MS) or seconds (SEC).
Decimal point location. Specifies the location of the decimal point or dummy zeroes in the primary unit display. Value should be consistent with local legal requirements.
Display divisions. Selects the minimum division size for the primary units displayed weight.
Specifies primary units for displayed and printed weight. Values are: LB=pound; KG=kilogram; OZ=ounce; TN=short ton; T=metric ton; G=gram
NOTE: Indicators sold outside North America are configured with KG for both primary and secondary units.
Decimal point location. Determines the location of the decimal point or dummy zeros in the secondary unit display.
Display divisions. Selects the value of minimum division size of the displayed weight.
Specifies secondary units for displayed and printed weight. Values are: KG=kilogram; OZ=ounce; TN=short ton; T=metric ton; G=gram; LB=pound.
Multiplier. Specifies the conversion factor by which the primary units are multiplied to obtain the secondary units. The default is 0.453592, which is the conversion factor for changing pounds to kilograms. See
NOTE: Multipliers are pre-configured within the indicator. Manual entry is only necessary when NONE is selected under UNITS.
To toggle between primary and secondary units, press the UNITS key.
Section 7.6 on page 44 for a list of multipliers.
Table 3-3. Format Menu Parameters (Continued)
18 420HE Installation Manual
Page 23

3.2.3 Calibration Menu

XXXXXXX XXXXXXX XXXXXXX XXXXXXX
WZERO WV AL WSPAN
ALGOUT DIGI N SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
REZERO
VERS
XXXXXXX XXXXXXXXXXXXXXXXXXXXX
EOLDLY
000000
number
EDP
PRINT
PRN
EDP
PRNDES
BITS TERMINBAUD
CR
9600
7ODD
7EVEN
8NONE
CR/LF
4800
2400
1200
600
300
Same as EDP
EDP
OFF
STREAM
PRN
ALGOUTDIGINSETPNTPROGRM PFORMTSERIALCALIBRCONFIG FORMAT
ECHO
ON
OFF
VERS
19200
38400
2 STOP
1 STOP
S BITS
BOTH
BOTH
LFT
INDUST
STRRTE
ON
OFF
PRNMSG
See Section 4.0 on page 27 for Calibration procedures.
Figure 3-7. Calibration Menu
CALIBR Menu
Parameter Choices Description
Level 2 submenus
WZERO Display and edit the zero calibration A/D count value.
DO NOT adjust this value after WSPAN has been set!
WVAL Display and edit the test weight value. WSPAN Display and edit the span calibration A/D count value. REZERO Press Enter to remove an offset value from the zero and span calibrations.
Use this parameter only after WZERO and WSP page 27 for more information about using this parameter.

3.2.4 Serial Menu

See Section 7.3 on page 40 for information about the 420HE serial data format.
Table 3-4. Calibration Menu Parameters
Figure 3-8. Serial Menu
AN have been set. See Section 4.1 on
420HE Installation Manual - Configuration 19
Page 24
SERIAL Menu
Parameter Choices Description
Level 2 submenus
EDP BAUD
BITS TERMIN EOLDLY ECHO
PRINT BAUD
BITS TERMIN EOLDLY ECHO
STREAM OFF
EDP PRN
STRRTE INDUST
LFT
PRNDES EDP
PRN
PRNMSG OFF
ON
Level 3 Submenus EDP Port and Printer Port
BAUD 9600
19200 38400 300 600 1200 2400 4800
BITS 8NONE
7EVEN 7ODD
TERMIN CR/LF
CR
EOLDLY 000
number
Specifies settings for baud rate, data bits, termination used by the EDP port.
Specifies settings for baud rate, data bits, termination used by the printer port.
Selects the serial port used for continuous transmission. See Section 7.3 on page 40 for information about the
Specifies stream rate. Stream rate can be
Print destination. Selects the port for data transmis KPRINT EDP command is sent.
Print message. Default will be off. Whenever the pr word PRINT is momentarily put on the remote display.
Baud rate. Selects the transmission speed for the EDP
Selects number of data bits and parity of data tran
Termination character. Selects termination character
End-of-line delay. Sets the delay period, in 0.1-second intervals, from when a formatted line is terminated to range 0-255, in tenths of a second (10 = 1 second).
the beginning of the next formatted serial output. Value specified must be in the
420HE continuous data format.
set to industrial or legal for trade.
characters, end-of-line delay and echo
characters, end-of-line delay and echo
sion when the PRINT key is pressed or the
int key is pressed and data is sent out, the
or printer port.
smitted from the EDP or printer port.
for data sent from the EDP or printer port.
NOTE: An receiving buffer is empty before another string is transmitted
ECHO OFF
ON
20 420HE Installation Manual
This command enables or disables echoing of the se
EOL may be required for continuous transmission at slower baud rates to ensure the
rial commands sent to the indicator.
Table 3-5. Serial Menu Parameters
Page 25

3.2.5 Program Menu

XXXXXXX XXXXXXX
PWRUPM
GO
OIML
REGULA
000000
number
CONSNU
DELAY
SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
000000
number
CONSTU
NTEP
CANADA
1
UID
VERS DIGIN ALGOUT
DA TFMT
MMDDYY
DA TE
DDMMYY
YYMMDD
YYDDMM
DA TSEP
SLASH
DASH
SEMI
TIMFMT
12HOUR
TIME
24HOUR
TIMSEP
COLON
COMA
NONE
Figure 3-9. Program Menu
PROGRM Menu
Parameter Choices Description
Level 2 submenus
PWRUPM GO
DELAY
REGULA NTEP
OIML CANADA NONE
Power up mode. In GO mode, the indicator goes into ope up display test.
In DELAY mode, the indica
tor performs a power up display test, then enters a 30-second warm up period. If no motion is detected during the warm up period, the indicator becomes operational when the warm up period ends; if motion is detected, the delay timer is reset and the warm up period repeated.
Regulatory mode. Specifies the regulatory agency having OIML, NTEP, and CANADA modes allow a tare to be acquir
NONE allows tares to be acquired at any weight value. OIML, NTEP, and CANADA modes allow a tar
load. NONE allows tares to be cleared at any weight value. NTEP and OIML modes allow a new tar
e to be acquired even if a tare is already present. In
CANADA mode, the previous tare must be cleared before a new tare can be acquired.
ration immediately after a brief power
jurisdiction over the scale site.
ed at any weight greater than zero.
e to be cleared only if the gross weight is at no
NONE, NTEP and CANADA modes allow the scale to be zer long as the current weight is within the specified ZRANGE. In OIML mode, the scale must be in gross mode before it can be zeroed; pressing the ZERO key in net mode clears the tare.
UID 1 Specifies the unit identification number. Value spec
digits.
DATE DATFMT
Allows selection of date format and date separator
DATSEP
TIME TIMFMT
Allows selection of time format and separator
. See level three parameter for descriptions.
TIMSEP
CONSNU 000000
number
Consecutive numbering. Allows sequential number number value is incremented following each print operation.
The initial value of this parameter is set to the
CONSTU 000000
number
parameter. Changing either CONSTU or CONSNU immediately resets the consecutive number used for printing.
Consecutive number start up value used when the indicator is powered on.
. Specifies the initial consecutive number (CONSNU) value
Level 3 submenus
Table 3-6. Program Menu Parameters
420HE Installation Manual - Configuration 21
oed in either gross or net mode as
ified can be any numeric value, up to six
. See Level three parameter for descriptions.
ing for print operations. The consecutive
start up value specified on the CONSTU
Page 26
XXXXXXX XXXXXXX XXXXXXX XXXXXXX
GFMT
Display first 6
characters of format
Same as GFMT
NFMT
ALGOUT DIGIN SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
Display and edit
active character and
ASCII value
Delete active
character
Scroll left in formatting string
Increment ASCII value of active character Decrement ASCII value of active character
Press to insert a space before the active character
VERS
Scroll right in formatting string
PROGRM Menu
Parameter Choices Description
DATFMT MMDDYY
Specifies the format used to display or print the date.
DDMMYY YYMMDD
DATSEP SLASH
Specifies the date separator character.
DASH SEMI
TIMFMT 24HOUR
Specifies the format used to display or print the time.
12HOUR
TIMSEP COLAN
Specifies the time separator character.
COMMA
Table 3-6. Program Menu Parameters (Continued)

3.2.6 Print Format Menu

See Section 6.0 for information about custom print formatting.
22 420HE Installation Manual
Figure 3-10. Print Format Menu
Page 27

3.2.7 Setpoint Menu

GROSS
NET
SETPT1
Same as SETPT1
XXXXXXX XXXXXXX
XXXXXXX XXXXXXX
VERS ALGOUT DIG IN
PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
XXXXXXX
SETPNT
KIND
number
V ALUE
HIGHER
LOWER
TRIP
number
BNDVAL
INBAND
OUTBAND
number
HYSTER
OFF
ON
ENABLE
OFF
ON
ACCESS
If TRIP = HIGHER/
LOWER
SETPT2
Figure 3-11. Setpoint Menu
SETPNT Menu
Parameter Choices Description
Level 2 submenus
SETPT1 SETPT2
ENABLE KIND
Specify settings for setpoint enable, kind, weight value, setpoint
trip, and band value used by the
VALUE TRIP BNDVAL
Level 3 submenus
ENABLE OFF
Turn setpoint ON or OFF.
ON
KIND GROSS
NET
Specifies the setpoint kind and determines wheth weight.
er function is based on GROSS or NET
GROSS or NET setpoint kinds can be used.
VALUE number Display and edit the setpoint value TRIP HIGHER
LOWER INBAND OUTBND
Trips the setpoint when the weight
is higher or lower than the setpoint value, or is within or outside of the band value. LOWER means the output is active until you reach weight. If trip is HIGHER, the output is active when the setpoint is met or exceeded. INBAND means the output is active if the weight is within the band value. If trip is OUTBND, the output is active when the weight is outside of the band value.
BNDVAL number The band value for either INBAND or OUTBND trip setpoints. BNDVAL is ignored unless trip is
HYSTER number Specifies a band around the setpoint value that must be
set to IN
BAND or OUTBND.
exceeded before the setpoint, once
off, can trip on. If TRIP = HiGHER or LOWER.
ACCESS OFF
ON
Front panel access to setpoints. Specify OFF if setpoints will not be used. ON enables operato
r to turn setpoints on/off, change value, or change BANDVAL via front panel entry
during weigh mode.
Table 3-7. Setpoint Menu Parameters
420HE Installation Manual - Configuration 23
Page 28

3.2.8 Digital Input Menu

XXXXXXX XXXXXXX XXXXXXX XXXXXXX
DIGIN1
OFF
DIGIN2
ZERO
T ARE
NT/GRS
UNITS
DSPTAR
PRINT
CLRCN
OFF
ZERO
T ARE
NT/GRS
UNITS
DSPTAR
PRINT
CLRCN
ALGOUT DIGI N SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
HOLD HOLD
KBDLOC KBDLOC
VERS
NEWID NEWID
Figure 3-12. Digital Input Menu
DIG IN Menu
Parameter Choices Description
Level 2 submenus
DIGIN1 DIGIN2
OFF
ZERO TAR E NT/GRS UNITS DSPTAR PRINT CLRCN KBDLOC HOLD NEWID
Specifies the function activated by digital inputs 1 and
• ZERO, NT/GRS (net/gross mode toggle), TARE, functions as the front panel keys.
• DSPTAR displays the current tare value.
• CLRCN resets the consecutive number to the value specified on th (PROGRM menu).
• KBDLOC disables the keypad while the digital input is held low.
• HOLD holds the current display. Releasing this i
• NEWID enters the ID number. This input will put indicator into numeric entry mode to enter an ID.
Table 3-8. Digital Input Menu Parameters
24 420HE Installation Manual
2. UNITS, and PRINT provide the same
e CONSTU parameter
nput clears the running average filter.
Page 29

3.2.9 Analog Output Menu

XXXXXXX XXXXXXX ALGOUT DIGIN SETPNT XXXXXXX PROGRM PFORMT SERIAL CALIBR XXXXXXX CONFIG FORMAT
SOURCE
GROSS
0%
20%
OFFSET
ERRACT
FULLSC
HOLD
000000
number
MIN
10000
number
MAX
TWZERO
NET
TWSPAN
ZEROSC
VERS
MINNEG
OFF
ON
MAXNEG
OFF
ON
The ALGOUT menu is used only if the analog output option is installed. If the analog output option is installed, configure all other indicator functions and calibrate the indicator (see Section 4.0) before configuring the analog output. See Section 7.8 on page 46 for analog output calibration procedures.
Figure 3-13. Analog Output Menu
ALG OUT Menu
Parameter Choices Description
Level 2 submenus
SOURCE GROSS
NET
OFFSET 0%
20%
ERRACT FULLSC
HOLD ZEROSC
MIN 000000
number
MINNEG OFF
ON
MAX 010000
number
MAXNEG OFF
ON
TWZERO Tweak zero. Adjust the analog output zero calibration
TWSPAN Tweak span. Adjust the analog outp
Specifies the source tracked by the analog output.
Zero offset. Selects whether the analog output supplies voltage (0–10 V) or curr
ent (4–20 mA)
output. Select 0% for 0–10 V output; select 20% for 4–20 mA output. Error action. Specifies how the analog output responds to system error conditions.
Possible values are:
FULLSC Set to full value (10 V or 20 mA) HOLD: Hold current value ZEROSC: Set to zero value (0 V or 4 mA)
Specifies the minimum weight value tracked by the analog output. Specify a weight value (in primary units) in the range 0–999 999.
Turn ON or OFF.
Specifies the maximum weight value tracked by the analog output. Specify a weight value (in primary units) in the range 0–999 999.
Turn ON or OFF.
. Use a multimeter to monitor the analog
output value. Press and hold
or to adjust the output. Press to save the new value.
ut span calibration. Use a multimeter to monitor the analog
output value. Press and hold or to adjust the output. Press to save the new value.
Table 3-9. Analog Output Menu Parameters
420HE Installation Manual - Configuration 25
Page 30

3.2.10 Version Menu

XXXXXXX ALGOUT XXXXXXX XXXXXXX
VERS
DIGI N SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
SOFTWR
REGVER
MODEL
1.08 1.01
HE
The VERS menu is used to check the software version and reg version installed in the indicator. You can also check the indicator model.
Figure 3-14. Version Menu
26 420HE Installation Manual
Page 31

4.0 Calibration

XXXXXXX XXXXXXX XXXXXXX XXXXXXX
WZERO WV AL WSPAN
ALGOUT DIGI N SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
REZERO
VERS
The 420HE can be calibrated using the front panel, EDP commands, or the Revolution® configuration utility. Each method consists of the following steps:
Zero calibration
Entering the test weight value
Span calibration
Optional rezero calibration for test weights using hooks or chains.
The following sections describe the
calibration procedure for each of the calibration methods.
Figure 4-1. Calibration (CALIBR) Menu

4.1 Front Panel Calibration

To calibrate the indicator using the front panel, do the following:
1. Place the indicator in setup mode (display
CONFIG) and remove all weight from the
reads scale platform. If your test weights require hooks or chains, place the hooks or chains on the scale for zero calibration.
2. Press Figure 4-1). Press to go to zero calibration (
WZERO).
3. With zero. The indicator displays *CAL* while calibration is in progress. When complete, the A/D count for the zero calibration is displayed.
DO NOT adjust this value after WSPAN has been set! Press
calibration value and go to the next prompt (
WVAL).
4. With stored calibration weight. Use the procedure shown in Figure 3-4 15 to enter the actual value of the test weights to be used for the span calibration. Press value and go to span calibration (WSPAN).
5. With the scale and press to calibrate span. The indicator displays progress. When complete, the A/D count for the span clibration is displayed. Press to store the span calibration value and go to the ne
until the display reads CALIBR (see
WZERO displayed, press to calibrate
again to save the zero
WVAL displayed, press to show the
to store the entered WVAL
WSPAN displayed, place test weights on
*CAL* while calibration is in
xt prompt (
REZERO).
again
6. The rezero function is used to remove a calibration of
fset when hooks or chains are
used to hang the test weights.
• If no other apparatus was used to hang the test ghts during calibration, remove the test
wei weights and press
to return to the CALIBR
menu.
• If hooks or chains were used during
calibration, remove these a
nd the test weights
from the scale. With all weight removed, press
to rezero the scale. This function adjusts the zero and span calibration values. The indicator displays
*CAL* while the zero and span
calibrations are adjusted. When complete, the adjusted A/D count for the zero calibration is displayed. Press
to save the value, then press
to return to the CALIBR menu.
7. Press press
until the display reads CONFIG, then
to exit setup mode.

4.2 EDP Command Calibration

To calibrate the indicator using EDP commands, the indicator EDP port must be connected to a terminal or personal computer. See Section 2.3.3 on page 8 for EDP port pin assignments; see Section 5.0 on page 29 for more information abou
Once the indicator is connected to do the following:
1. Place the indicator in setu reads
CONFIG) and remove all weight from the
scale platform. If your test weights require hooks or chains, place the hooks or chains on the scale for zero calibration.
2. Send the WZERO EDP command to calibrate
ro. The indicator displays
ze calibration is in progress.
t using EDP commands.
the sending device,
p mode (display
*CAL* while
420HE Installation Manual - Calibration 27
Page 32
3. Place test weights on the scale and use the
Note
Note
WVAL command to enter the test weight value in the following format:
WVAL=nnnnnn<CR>
4. Send the WSPAN EDP command to calibrate span. The indicator displays
*CAL* while
calibration is in progress.
5. To remove an offset value, clear all weight from
the scale, including hooks or chains used to hang test weights, then send the REZERO EDP command. The indicator displays
*CAL*
while the zero and span calibrations are adjusted.
6. Send the KUPARROW EDP command to exit mode.
setup

4.3 Revolution® Calibration

To calibrate the indicator using Revolution, the indicator EDP port must be connected to a PC running
Revolution configuration utility.
the Use the following procedure to calibrate the indicator:
1. Select
tools menu.
2.
Revolution uploads calibration data from the
indicator then presents the information in a display like that shown in Figure 4-2.
Calibration Wizard from the Revolution

4.4 More About Calibration

The following topics provide additional information about compensating for environmental factors (Section 4.4.1) and diagnostic information for determining expected zero and span coefficients.

4.4.1 Adjusting Final Calibration

Calibration may be affected by environmental factors including wind, vibration, and angular loading. For example, if the scale is calibrated with 1000 lb, a strain test may determine that at 2000 lb the calibration is 3 lb high. In this case, final calibration can be adjusted by tweaking WVAL to 998.5 lb. This adjustment provides a linear correction of 1.5 lb per 1000 lb.
To adjust the final calibration, return to the prompt and press to show the test weight value. Press
or to adjust calibration up or down. Press to save the value, then press to return to the CALIBR menu.

4.4.2 A/D Counts

Table 4-1 lists the ideal A/D counts that result from input signals of 0–3.0 mV with zero deadload. Actual values will typical
ly be higher than the values shown in Table 4-1 but the ideal values c an be used when calibrating the indicator with
no attached scale.
WVAL
Figure 4-2. Revolution Calibration Display
3. Enter the Value of Test Weight to be used for span calibration then click
OK.
4. The Zero Calibration dialog box prompts you to remove scale and click
If your test weights require hooks or chains, place the hooks or chains on the scale for zero
all weight from the scale. Clear the
OK to begin zero calibration.
calibration.
5. When zero calibration is complete, the Span Calibration dialog box prompts you to place test weights on the scale for span calibration. Place tests weights on the scale then click
6. When calibration is complete, the
New Settings
OK.
fields of the Indicator Calibration display are filled in. Click return to the
Exit to save the new values and
Revolution main menu; to restore
the previous calibration values, click Restore
Settings
.
Input Signal (mV) Raw A/D Counts
0.0 mV/V
0.5 mV/V
1.0 mV/V
1.5 mV/V
2.0 mV/V
2.5 mV/V
3.0 mV/V
Table 4-1. Ideal A/D Raw Counts
When Raw A/D Count is displayed, the six most significant digits appear. Scroll left or ri
ght to see the full value.
167,840 335,613 503,377 671,143
838,908 1,100,668 1,174,446
28 420HE Installation Manual
Page 33

5.0 EDP Commands

The 420HE indicator can be controlled by a personal computer or remote keyboard connected to the indicator EDP port. Control is provided by a set of EDP commands that can simulate front panel key press functions, display and change setup parameters, and perform reporting functions. The EDP port provides the capability to print configuration data or to save that data to an attached personal computer. This section describes the EDP command set and procedures for saving and transferring data using the EDP port.

5.1 The EDP Command Set

The EDP command set can be divided into five groups: key press commands, reporting commands, the RESETCONFIGURATION special function command, parameter setting commands, and transmit weight data commands.
When the indicator processes an EDP command, it
sponds with the message
re verifies that the command was received and ha s been executed. If the command is unrecognized or cannot be executed, the indicator responds with
The following sections list the commands and command syntax use

5.1.1 Key Press Commands

d for each of these groups.
Key press EDP commands (see Table 5-1) simulate pressing the keys on the front panel of the indicator.
st commands can be used in both setup and
Mo weighing mode. Several of the commands serve as “pseudo” keys, providing functions that are not represented by a key on the front panel.
For example, to enter a 15-pound tare weight using EDP commands:
1. Type K1 and press
2. Type K5 and press
3. Type KTARE and press shifts to net mode when the tare is entered.
OK. The OK response
??.
ENTER (or RETURN). ENTER.
ENTER. The display
Command Function
KZERO In weighing mode, press the ZERO key KGROSSNET In weighing mode, press the GROSS/
NET key KGROSS Go to gross mode* KNET Go to net mode* KTARE Press the TARE key KUNITS In weighing mode, pr KPRIM Go to primary units* KSEC Go to secondary units* KPRINT In weighing mode, pr KLEFTARROW In setup mode, move left in the menu KRIGHTARROW In setup mode, move right in the menu KUPARROW In setup mode, move up in the menu KDOWNARROW In setup mode, move down in the menu KTIME Press the TIME/DATE key once* KDATE Press the TIME/DATE key twice* KDISPTARE Press the DISPLAY TARE key* KCLR Press the CLEAR key* K0 Press number 0 (zero)* K1 Press number 1* K2 Press number 2* K3 Press number 3* K4 Press number 4* K5 Press number 5* K6 Press number 6* K7 Press number 7* K8 Press number 8* K9 Press number 9* KDOT Press the decimal point (.)* KENTER Press the ENTER key * Pseudo keys
ess the UNITS key
ess the PRINT key
Table 5-1. EDP Key Press Commands
420HE Installation Manual - EDP Commands 29
Page 34

5.1.2 Reporting Commands

Note
Reporting commands (see Table 5-2) send specific information to the EDP port. These commands can be
sed in both setup mode and normal mode.
u
Command Function
DUMPALL List all parameter values VERSION
P Write current displayed weight with units
ZZ Write current weight and annunciator
S Write one frame of stream format. See

5.1.3 The RESETCONFIGURATION Command

420HE software version
fier. See Section 7.2 on page 39 for
identi more information.
status. See Section 7.2 on page 39 for more information.
Ta bl e 5-12 on page 33 for information about the SX and EX commands.
Table 5-2. EDP Reporting Commands
The RESETCONFIGURATION command can be used to restore all configuration parameters to their default values. Before issuing this command, the indicator must be placed in test mode (press and hold setup switch for approximately three seconds to show TEST menu).
This command is equivalent to
using the DEFLT function on the TEST menu. See Section 7.9 on page 47 for more information about test mode and using the TEST menu.
All load cell calibration settings are lost when the RESETCONFIGURATION command is run.

5.1.4 Parameter Setting Commands

Parameter setting commands allow you to display or change the current value for a particular configuration parameter (Tables 5-3 through 5-11).
Current configuration para
meter settings can be displayed in either setup mode or normal mode using the following syntax:
command<ENTER>
Most parameter values can be changed in setup mode only. Use the following command syntax when changing parameter values:
command=value<ENTER>
where value is a number or a parameter value. Use no spaces before or after the equal (=) sign. If you type an incorrect command or value, the display reads
??.
Changes to the parameters are saved as they are entered but typically do not take effect until you exit setup mode.
For example, to set the motion band parameter
to 5,
type the following:
MOTBAND=5D<ENTER>

5.1.5 Soft Reset

The command RS will reset the indicator without losing configuration and calibration. It does reset consecutive number.
Command Description Values
GRADS Graduations 1–100 000 ZTRKBND Zero track band OFF, 0.5D, 1D, 3D ZRANGE Zero range 1.9%, 100% MOTBAND Motion band 1D, 2D, 3D, 5D, 10D, 20D, OFF OVRLOAD Overload FS+2%, FS+1D, FS+9D, FS SMPRAT Sample rate 15HZ, 30HZ, 60HZ, 7.5HZ DIGFLTR1
DIGFLTR2 DIGFLTR3
DFSENS Digital filter cutout sensitivity 2OUT, 4OUT, 8OUT, 16OUT, 32OUT, 64OUT, 128OUT DFTHRH Digital filter cutout threshold NONE, 2DD, 5DD, 10DD, 20DD, 50DD, 100DD, 200DD, 250DD TAREFN Tare function BOTH, NOTARE, PBTARE, KEYED
30 420HE Installation Manual
Digital filtering 1, 2, 4, 8, 16, 32, 64
Table 5-3. CONFIG EDP Commands
Page 35
Command Description Values
PRI.DECPNT Primary units decimal position 8.88888, 88.8888, 888.888, 8888.88, 88888.8, 888888, 888880 PRI.DSPDIV Primary units display divisions 1D, 2D, 5D PRI.UNITS Primary units LB, KG, OZ, TN, T, G, NONE SEC.DECPNT Secondary units decimal position 8.88888, 88.8888, 888.888, 8888.88, 88888.8, 888888, 888880 SEC.DSPDIV Secondary units display divisions 1D, 2D, 5D SEC.UNITS Secondary units LB, KG, OZ, TN, T, G, NONE SEC.MULT Secondary units multiplier 0.00000–9999.99 DSPRATE Display rate 250MS, 500MS, 750MS, 1SEC, 1.5SEC, 2SEC, 2.5SEC, 3SEC,
, 6SEC, 8SEC
4SEC
Table 5-4. FORMAT EDP Commands
Command Description Values
WZERO Zero calibration — WVAL Test weight value test_weight_value WSPAN Span calibration — REZERO Rezero — LC.CD Set deadload coefficient value LC.CW Set span coefficient value
Table 5-5. CALIBR EDP Commands
Command Description Values
EDP.BAUD EDP port baud rate 300, 600, 1200, 2400, 4800, 96 EDP.BITS EDP port data bits/parity 8NONE, 7EVEN, 7ODD EDP.TERMIN EDP port termination character CR/LF, CR EDP.EOLDLY EDP port end-of-line delay 0–255 (0.1-second EDP.ECHO EDP port echo ON, OFF PRN.BAUD Printer port baud rate 300, 600, 1200, 2400, 4800, 96 PRN.BITS Printer port data bits/parity 8NONE, 7EVEN, 7ODD PRN.TERMIN Printer port termination character CR/LF, CR PRN.EOLDLY Printer port end-of-line delay 0–255 (0.1-second PRN.ECHO Printer port echo ON, OFF STREAM Streaming port OFF, EDP, PRN STRRTE Stream rate INDUST, LFT PRNDEST Print destination EDP, PRN PRNMSG Print message OFF, ON
intervals)
intervals)
Table 5-6. SERIAL EDP Commands
00, 19200, 38400
00, 19200, 38400
Command Description Values
PWRUPMD Power up mode GO, DELAY REGULAT Regulatory compliance NTEP, OIML, CANADA, NONE CONSNUM Consecutive number 0–999 999
Table 5-7. PROGRM EDP Commands
420HE Installation Manual - EDP Commands 31
Page 36
Command Description Values
CONSTUP Consecutive number start-up value 0–999 999 DATEFMT Date format MMDDYY, DDMMYY, YYMMDD, YYDDMM DATESEP Date seperator SLASH, DASH, SEMI TIMEFMT Time format 12HOUR, 24HOUR TIMESEP Time seperator
COLON, COMMA
Table 5-7. PROGRM EDP Commands
Command Description Values
GFMT Gross demand print format
ing
str
NFMT Net demand print fo
rmat string
See Section 6.0 on page 35 for detailed information
Table 5-8. PFORMT EDP Commands
Command Description Val ues
SP1 SP2
SP1.ENABLE SP2.ENABLE Setpoint enable OFF, ON SP1.KIND SP2.KIND Setpoint kind GROSS, NET SP1.VALUE SP2.VALUE Setpoint value number SP1.TRIP SP2.TRIP Trip Higher, Lower, Inband, Outbnd SP1.BNDVAL SP2.BNDVAL Band value number SP1.HYSTER SP2.HYSTER Hysteresis number SP1.ACCESS SP2.ACCESS Setpoint access OFF, ON
Table 5-9. SETPNTS EDP Commands
Command Description Values
DIGIN1 DIGIN2
Digital input function OFF, ZERO, TARE, NT/GRS, UNITS,
KBDLOC, HOLD, CLRTAR, CLRACC, ACCUM, NEWID
Table 5-10. DIG IN EDP Commands
Command Description Values
SOURCE Analog output source GROSS, NET OFFSET Zero offset 0%, 20% ERRACT Error action FULLSC, HOLD, ZEROSC MIN Minimum value tracked 0–999 999 MINNEG Minimum negative OFF, ON MAX Maximum value tracked 0–999 999 MAXNEG Maximum negative OFF, ON TWZERO Zero calibration 0–16 383 TWSPAN Span calibration 0–16 383
Table 5-11. ALGOUT EDP Commands
DSPTAR, PRINT, CLRCN,
32 420HE Installation Manual
Page 37

5.1.6 Normal Mode Commands

The serial transmit weight data commands (see Table 5-12) transmit data to the EDP port on demand. The SX and EX commands are valid only in normal operating mode; all oth
er commands are valid in either setup or normal
mode.
Command Description Response Format
UID Set unit ID nnnnnnn SD Set date MMDDYY, DDMMYY, YYMMDD (enter using DATEFMT
specified) ST Set time hhmm (enter using 24-hour format) SX Start EDP streaming OK or ?? EX Stop EDP streaming OK or ?? RS Reset system — XA Transmit accumulator value nnnnnn UU XG Transmit gross weight in XN Transmit net weight in displayed units XT Transmit tare weight in displayed units XG2 Transmit gross weight in non-displayed units XN2 Transmit net weight in non-displayed units XT2 Transmit tare weight in non-displayed units XE Query system error conditions nnnnn nnnnn
displayed units
where nn
See Section 7.1.2 on page 39 for detailed information about
the XE command response format.
nnnn is the weight value, UU is the units.
Table 5-12. Normal Mode Commands
420HE Installation Manual - EDP Commands 33
Page 38

5.2 Saving and Transferring Data

Connecting a personal computer to the 420HE EDP port allows you to save indicator configuration data to the PC or to download configuration data from the PC to an indicator. The following sections describe the procedures for these save and transfer operations.

5.2.1 Saving Indicator Data to a Personal Computer

Configuration data can be saved to a personal computer connected to the EDP port. The PC must be running a
communications program such as PROCOMMPLUS
Section 2.3.3 on page 8 for information about
See serial communications wiring and EDP port pin assignments.
When configuring the indicator, ensure that the values set for the BAUD and BITS parameters on the SERIAL menu match the baud rate, bits, and parity settings configured for the serial port on the PC. Set the PRNDEST parameter to EDP.
To save all configuration data, place the indicator in setup mode and send the DUMPALL EDP command to the indicator. The
420HE responds by sending all
configuration parameters to the PC as ASCII-formatted text.
®

5.2.2 Downloading Configuration Data from PC to Indicator

Configuration data saved on a PC or floppy disk can be downloaded from the PC to an indicator. This procedure is useful when a number of indicators with similar configurations are set up or when an indicator is replaced.
To download configuration data, connect the PC to the EDP port as described in
Section 5.2.1. Place the
indicator in setup mode and use the PC
.
communications software to send the saved configuration data to the indicator. When transfer is complete, calibrate the indicator as described in Section 4.0.
NOTES:
Calibration settings are included in the configuration data downloaded to the indicator. If the receiving indicator is a direct replacement for another
420HE and the
attached scale is not changed, recalibration is not required.
When downloading configurations that include changed serial communications settings, edit the data file to place the serial communications changes at the end of the file. Communication between the PC and indicator will be lost once the indicator receives settings for baud rate (BAUD parameter) or data bits and parity (BITS parameter) that do not match those configured for the PC.
34 420HE Installation Manual
Page 39

6.0 Print Formatting

Note
The 420HE provides two print formats, GFMT and NFMT that determine the format of the printed output when the
PRINT key is pressed or when a KPRINT EDP
command is received. If a tare has been entered or acquired, NFMT is used; otherwise, GFMT is used.
Each print format can be customized to include up to
0 characters of information, such as company name
30 and address, on printed tickets. You can use the indicator front panel (PFORMT menu), EDP
commands, or the
Revolution
®
configuration utility to
customize the print formats.
Display will only show capital letters, press the down arrow to view the ASCII character d
ecimal value on the second menu level. Refer to Ta bl e 7-4 on page 41 and Ta bl e 7-5 on page 42 to view the ASCII character charts.

6.1 Print Formatting Commands

Table 6-1 lists commands you can use to format the gross, net and count print formats in the format strings must be enclosed between < and > delimiters. Any characters outside of the delimiters are printed as text on the ticket. T ext characters can include any ASCII character that can be printed by the output device.
Command Description
<G> Gross weight in displayed units <G2> Gross weight in non-displayed units <N> Net weight in displayed units <N2> Net weight in non-displayed units <T> Tare weight in displayed units <T2> Tare weight in non-displayed units <UID> Unit ID number <CN> Consecutive number
> New line (nn = number of termination (<CR/LF>
<NLnn
or <CR>) characters)*
> Space (nn = number of spaces)*
<SPnn <SU> Toggle weight data format (formatted/
atted)**
unform <TI> Time <DA> Date <TD> Gross, net, and tare weights are 9 digits in length, including
sign (10 digits with decimal point), followed by a space and a two-digit units identifier. Total field length with units identifier is 12 (or 13) characters.
ID and consecutive number (CN) fields are 1–6 characters in length, as required.
Time & Date
Table 6-1. Print Format Commands
. Commands included
Command Description
* If nn is not specified, 1 is assumed. Value must be in the range 1–99.
** After receiving an SU command, the indicator sends unformatted data until the next SU command is received. Unformatted data omits decimal points, leading and trailing characters.
Table 6-1. Print Format Commands
The default GFMT and NFMT print formats use only the new line (<NL>) command and the commands for gross, net, and tare weights in displayed units (<G>, <N>, and <T>).
The default
420HE print formats are shown in
Table 6-2:
Format Default Format String Sample Output
GFMT NFMT
NOTES:
<G> GROSS<NL> 2046.81 lb GROSS <G> GROSS<NL>
<T> TARE<NL> <N> NET<NL>
Table 6-2. GFMT and NFMT Formats
4053.1 lb GROSS
15.6 lb TARE
4037.5 lb NET
The <G2>, <N2>, and <T2> commands listed in Table 6-1 print the gross, net, and tare weights in non-displayed units—that
is, in the
units not currently displayed on the indicator.
ID numbers included in the print format string (<UID>
command) must be set using the UID EDP command.Or, DIGIN must be set for NEWID.
The 300-character limit of each print format string in
cludes the output field length of the print formatting commands, not the command length. For example, if the indicator is configured to show a decimal point, the <G> command generates an output field of 13 characters: the 10-character weight value (including decimal point), one space, and a two-digit units identifier.
PT (preset tare) is added to the tare weight if tare wa
s keyed in.

6.2 Customizing Print Formats

The following sections describe procedures for customizing the GFMT and NFMT formats using the EDP port, the front panel (PFORMT menu), and the
Revolution configuration utility.

6.2.1 Using the EDP Port

With a personal computer, terminal, or remote keyboard attached to the the EDP command set to customize the print format strings.
420HE EDP port, you can use
420HE Installation Manual - Print Formatting 35
Page 40
To view the current setting of a format string, type the
XXXXXXX XXXXXXX XXXXXXX XXXXXXX
GFMT
Display first 6
characters of format
Same as GFMT
NFMT
ALGOUT DIGIN SETPNT PROGRM PFORMT SERIAL CALIBR CONFIG FORMAT
Display and edit
active character and
ASCII value
Delete active
character
Scroll left in formatting string
Increment ASCII value of active character Decrement ASCII value of active character
Press to insert a space before the active character
VERS
Scroll right in formatting string
Note
Note
name of the string (GFMT or NFMT) and press
ENTER.
For example, to check the current configuration of the GFMT format, type GFMT and press
ENTER. The
indicator responds by sending the current configuration for the gross format:
GFMT=<G> GROSS<NL>
To change the format, use the GFMT or NFMT EDP command followed by an equals sign (=) and the modified print format string. For example, to add the name and address of a company to the gross format, you could send the following EDP command:
Indicator must be placed in the setup mode, CONFIG is
GFMT=FINE TRANSFER CO<NL>32400 WEST HIGHW
AY ROAD<NL>SMALLTOWN<NL2><G>
GROSS<NL>
shown on the display.
A ticket printed using this format might look like the following:
FINE TRANSFER CO 32400 WEST HIGHWAY ROAD SMALLTOWN 1345 lb GROSS

6.2.2 Using the Front Panel

If you have no access to equipment for communication through the EDP port or are working at a site where such equipment cannot be used, you can use the PFORMT menu (see Figure 6-1) to customize the print formats.
Using the PFORMT menu, you can edit the print format strings by
changing the decimal values of the
ASCII characters in the format string.
Lower-case letters and some special characters cannot be displayed on the 420HE
page 41 and page 42) and are shown as blanks. The
420HE can send or receive any ASCII character; the
character printed depends on the particular ASCII character set implemented for the receiving device.
front panel (see the ASCII character charts on
Figure 6-1. PFORMT Menu, Showing Alphanumeric Character Entry Procedure
36 420HE Installation Manual
Page 41
6.2.3 Using Revolution
®
The Revolution configuration utility provides a print formatting grid with a tool bar. The grid allows you to construct the print format without the formatting commands (<NL> and <SP>) required by the front panel or EDP command methods. Using
Revolution, you can type text directly into the grid, then select weight value fields from
the tool bar and place them where you want them to appear on the printed ticket. Figure 6-2 shows an example of the
Revolution print formatting grid.
Figure 6-2. Revolution Print Format Grid
420HE Installation Manual - Print Formatting 37
Page 42

7.0 Appendix

7.1 Error Messages

The 420HE indicator provides a number of error messages. When an error occurs, the message is shown on the indicator LED display. Error conditions can also be checked remotely by using the XE EDP command as described in Section 7.1.2 on page 39.

7.1.1 Displayed Error Messages

The 420HE provides a number of front panel error messages to assist in problem diagnosis. Table 7-1 lists these messages and their meanings.
Error Message Description Solution
E A/D A/D physical error Call Rice Lake Weighing Systems (RL EEEROM EEPROM physical error EVIREE Virgin EEPROM Use TEST menu to perform DEFLT (restore defaults) procedure, then
ecalibrate load cells.
EPCKSM Parameter checksum error EACKSM A/D calibration checksum error A/D converter requires recalibration. Call RLWS Service. EFCKSM Printer format checksum error Call RLWS Service. ELCKSM Load cell calibration checksum error Recalibrate load cells. EIDATA Internal RAM checksum error Call RLWS Service. E REF A/D reference error A/D converter requires recalibration. Call RLWS Service. ERROR Internal program error Check configuration. Ru
OVERFL Overflow error Weight value too large to be displayed.
------ Gross > overload limit Gross value exceeds overload limit. Check conf
______ A/D underrange A/D reading < –4 mV. Check scale for binding or damage. RNGERR GRADS > 100,000
WVAL > 100,000
r
n XE command (see Section 7.1.2 on page 39) to determine error type. Call RLWS Service if unable to clear err recurs.
input level. Overload can be caused by input signal > 45 mV or common mode voltage > 950 mV.
Only shows up in Config mode.
WS) Service.
or by cycling power or if error
iguration or signal
38 420HE Installation Manual
Table 7-1. 420HE Error Messages
Page 43

7.1.2 Using the XE EDP Command

The XE EDP command can be used to remotely query
420HE for the error conditions shown on the front
the panel. The XE command returns two 5-digit numbers in the format:
xxxxx yyyyy
where xxxxx contains a decimal representation of any existing error conditions as described in Table 7-2.
If more than one error condition exists, the number returned is the
sum of the values representing the error conditions. For example, if the XE command returns the number 1040, this value represents the sum of an A/ D reference error (1024) and an A/D calibration checksum error (16).
The second number returned (
yyyyy) uses the same bit
assignments as shown in Table 7-2 to indicate whether the test for the error condition was run. For example, the value
yyyyy = 50815 represents the decimal
equivalent of the binary value 1100 0110 0111 1111. Using the bit assignments in Table 7-2, this value indicates all tests were run.
Error
Code
0x0001 0x0002 0x0004 0x0008 0x0010 0x0020 0x0040 0x0080 0x0100 0x0200 0x0400 0x0800 0x1000 0x2000 0x4000 0x8000
0x10000 - 0x80000000
EEPROM Error 0000 0000 0000 0001 Virgin EEPROM 0000 0000 0000 0010 Config Parameter Checksum 0000 0000 0000 0100 Load Cell Checksum 0000 0000 0000 1000 A/D Calibration Checksum 0000 0000 0001 0000 Print Formats Checksum 0000 0000 0010 0000 XA Internal RAM Error 0000 0000 0100 0000 External RAM Error 0000 0000 1000 0000 Reserved 0000 0001 0000 0000 ADC Physical Error 0000 0010 0000 0000 ADC Reference 0000 0100 0000 0000 Count Error 0000 1000 0000 0000 Reserved 0001 0000 0000 0000 Display Range 0010 0000 0000 0000 ADC Range 0100 0000 0000 0000 Gross Limit 1000 0000 0000 0000
Table 7-2. Error Codes Returned on XE Command
Description Binary Value
Reserved

7.2 Status Messages

Two EDP commands, P and ZZ, can be used to provide status about the indicator. These commands are described in the following sections.

7.2.1 Using the P EDP Command

The P EDP command returns the current displayed weight value to the EDP port, along with the units identifier. If the indicator is in an underrange or overload condition, the weight value is replaced with
&&&&&& (overload) or :::::: (underrange).

7.2.2 Using the ZZ EDP Command

The ZZ EDP command can be used to remotely que ry which annunciators are currently displayed on the indicator front panel. The ZZ command returns the currently displayed weight and a decimal number representing the LED annunciators currently lit. The format of the returned data is:
wwwwww uu zzz
where wwwwww uu is the current displayed weight and
zzz is the annunciator status value (see Table 7-3).
units, If more than one annunciator is lit, the second number returne annunciators.
Example: If the annunciator status value returned on
the ZZ command is 145, the gross, standstill, and lb annunciators are lit. 145 represents the sum of the values for the standstill annunciator (128), gross mode annunciator (16), and the lb/primary units annunciator (1).
d is the sum of the values representing the active
Decimal
Value
1 lb/primary units
2 kg/secondary units 16 Gross 32 Net 64 Center of zero
128 Standstill
Table 7-3. Status Codes Returned on the ZZ Command
Annunciator
420HE Installation Manual - Appendix 39
Page 44

7.3 Continuous Output (Stream) Format

<STX> <POL> <wwwwwww> <UNIT> <G/N> <S> <TERM>
ASCII 02 (decimal)
Weight data: 7 digits, right-justified, with decimal point, l eading zer o s upr e ssion. Overload = ^^^^^^^ Underrange = ] ] ] ] ] ] ] Display overflow = OVERFL
L = pounds K = kilogram T = ton G = grams O = ounces <space> = none
G = Gross N = Net
Status: < space > = valid I = Invalid M = Motion O = Over/under range
Polarity: < space
> = Positive <–> = Negative <^> = Overload
<]> = Underrange
<CR> <LF>
or <CR>
ASCII 13, 10
(decimal)
Figure 7-1 shows the continuous output format sent to the 420HE EDP or printer port when the STREAM parameter (SERIAL menu) is set to either EDP or PRN.
Figure 7-1. Continuous Output Data Format
40 420HE Installation Manual
Page 45

7.4 ASCII Character Chart

Use the decimal values for ASCII characters listed in Tables 7-4 and 7-5 when specifying print format strings on
420HE PFORMT menu. The actual character printed depends on the character mapping used by the output
the device.
420HE can send or receive any ASCII character value (decimal 0–255), but the indica tor display is limited to
The numbers, upper-case, unaccented letters, and a few special characters. See Section 7.5 on page 43 for information about the
Control ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex
420HE LED display.
Ctrl-@ NUL 00 00 space 32 20 @ 64 40 ` 96 60
Ctrl-A SOH 01 01 ! 33 21 A 65 41 a 97 61 Ctrl-B STX 02 02 34 22 B 66 42 b 98 62
Ctrl-C ETX 03 03 # 35 23 C 67 43 c 99 63
Ctrl-D EOT 04 04 $ 36 24 D 68 44 d 100 64 Ctrl-E ENQ 05 05 % 37 25 E 69 45 e 101 65
Ctrl-F ACK 06 06 & 38 26 F 70 46 f 102 66 Ctrl-G BEL 07 07 39 27 G 71 47 g 103 67 Ctrl-H BS 08 08 ( 40 28 H 72 48 h 104 68
Ctrl-I HT 09 09 ) 41 29 I 73 49 i 105 69 Ctrl-J LF 10 Ctrl-K VT 11 0B + 43 2B K 75 4B k 107 6B Ctrl-L FF 12 0C , 44 2C L 76 4C l 108 6C
Ctrl-M CR 13 0D - 45 2D M 77 4D m 109 6D Ctrl-N SO 14 0E . 46 2E N 78 4E n 110 6E Ctrl-O SI 15 0F / 47 2F O 79 4F o 111 6F
Ctrl-P DLE 16 10 0 48 30 P 80 50 p 112 70
Ctrl-Q DC1 17 11 1 49 31 Q 81 51 q 113 71
Ctrl-R DC2 18 12 2 50 32 R 82 52 r 114 72 Ctrl-S DC3 19 13 3 51 33 S 83 53 s 115 73 Ctrl-T DC4 20 14 4 52 34
Ctrl-U NAK 21 15 5 53 35 U 85 55 u 117 75
Ctrl-V SYN 22 16 6 54 36 V 86 56 v 118 76
Ctrl-W ETB 23 17 7 55 37 W 87 57 w 119 77
Ctrl-X CAN 24 18 8 56 38 X 88 58 x 120 78 Ctrl-Y EM 25 19 9 57 39 Y 89 59 y 121 79 Ctrl-Z SUB 26 1A : 58 3A Z 90 5A z 122 7A
Ctrl-[ ESC 27 1B ; 59 3B [ 91 5B { 123 7B
Ctrl-\ FS 28 1C < 60 3C \ 92 5C | 124 7C
Ctrl-] GS 29 1D = 61 3D ] 93 5D } 125 7D Ctrl-^ RS 30 1E > 62 3E ^ 94 5E ~ Ctrl-_ US 31 1F ? 63 3F _ 95 5F DEL 127 7F
0A * 42 2A J 74 4A j 106 6A
T 84 54 t 116 74
126 7E
Table 7-4. ASCII Character Chart (Part 1)
420HE Installation Manual - Appendix 41
Page 46
ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex ASCII Dec Hex
Ç 128 80 á 160 A0 192 C0 224 E0
ü 129 81 í 161 A1 193 C1 ß 225 E1
é 130 82 ó 162 A2 194 C2 226 E2
â 131 83 ú 163 A3 195 C3 227 E3
ä 132 84 ñ 164 A4 196 C4 228 E4
à 133 85 Ñ 165 A5 197 C5 229 E5
å 134 86 ª 166 A6 198 C6 μ 230 E6
ç 135 87 º 167 A7 199 C7 231 E7
ê 136 88 ¿ 168 A8 200 C8 232 E8
ë 137 89 169 A9 201 C9 233 E9
è 138 8A ¬ 170 AA 202 CA 234 EA
ï 139 8B 1/2 171 AB 203 CB 235 EB î 140
ì 141 8D ¡ 173 AD 205 CD 237 ED Ä 142 8E « 174 AE 206 CE 238 EE Å 143 8F » 175 AF 207 CF 239 EF É 144 90 176 B0 208 D0 240 F0
æ 145 91 177 B1 209 D1 ± 241 F1 Æ 146 92 178 B2 210 D2 242 F2
ô 147 93 179 B3 211 D3 243 F3 ö 148 94 180 B4 212 D4 244 F4 ò 149 95 181 B5 213 D5 245 F5 û 150 96 182 B6 214 D6 ÷ 246 F6 ù 151 97 183 B7 215 D7 ˘ 247 F7
ÿ 152 98 184 B8 216 D8 ° 248 F8 Ö 153 Ü 154 9A 186 BA 218 DA 250 FA ¢ 155 9B 187 BB 219 DB 251 FB £ 156 9C 188 BC 220 DC 252 FC ¥ 157 9D 189 BD 221 DD
Pts 158 9E 190 BE 222 DE 254 FE
ƒ 159 9F 191 BF 223 DF 255 FF
8C 1/4 172 AC 204 CC 236 EC
99 185 B9 217 D9 249 F9
²
253 FD
42 420HE Installation Manual
Table 7-5. ASCII Character Chart (Part 2)
Page 47

7.5 Front Panel Display Characters

-9 EQ
.: FR
/; GS
0< HT
1= %IU
&2 >J V
3? KW
(4 @L X
)5 AM Y
*6 BN Z
+7 CO [
,8 DP \
.
Figure 7-2 shows the 7-segment LED character set used to display alphanumeric characters on the 420HE front panel.
Figure 7-2. 420HE Display Characters
420HE Installation Manual - Appendix 43
Page 48
7.6 Conversion Factors for Secondary
Note
Units
The 420HE has the capability to mathematically convert a weight into many different types of units and instantly display those results with a press of the key.
Secondary units can be specified on the FORMAT men
u using the SECNDR parameter, or by using EDP
commands.
Multipliers are preconfigured within the
indicator. Manual entry is only necessary when NONE is selected under UNITS. Long tons and grain units listed in Table 7-6 cannot be directly specified as primary or secondary units. For these or other unlisted units of
ht, specify NONE under UNITS.
weig
Ensure that the secondary decimal point
position is set appropriately
for the scale capacity in the secondary units. If the converted value requires more digits than are available, the indicator will display an overflow message (
OVERFL).
For example, if the primary units are short tons, secon
dary units are pounds, and the secondary decimal point is set to 8888.88, the indicator will overflow if 5 tons or more are applied to the scale. With 5 tons applied, and a conversion factor of 2000, the secondary units display needs five digits to the left of the decimal point to display the 10000 lb secondary units value.
UNITS
Primary Unit x Multiplier Secondary Unit
grains 0.064799 grams
0.002286 ounces
0.000143 pounds
0.000065 kilograms
ounces 437.500 grains
28.3495 grams
0.06250 pounds
0.02835 kilograms
pounds 7000.00 grains
453.592 grams
16.0000 ounces
0.453592 kilograms
0.000500 short tons
0.000446 long tons
0.000453 metric tons
short tons 2000.00 pounds
907.185 kilograms
0.892857 long tons
0.907185 metric tons
grams 15.4324 grains
0.035274 ounces
0.002205 pounds
0.001000 kilograms
kilograms 15432.4 grains
35.2740 ounces
1000.00 grams
2.20462 pounds
0.001102 short tons
0.000984 long tons
0.001000 metric tons
metric tons 2204.62 pounds
1000.00 kilograms
1.10231 short tons
0.984207 long tons
long tons 2240.00 pounds
1016.05 kilograms
1.12000 short tons
1.01605 metric tons
NOTE: Multipliers in italics are preconfigured
Table 7-6. Conversion Factors
44 420HE Installation Manual
Page 49

7.7 Digital Filtering

1
4
2
8
DIGFL1
32
16
64
1
4
2
8
DIGFL2
32
16
64
1
4
2
8
DIGFL3
32
16
64
8OUT
32OUT
16OUT
64OUT
DFSENS DFTHRH
2OUT
128OUT
4OUT
2DD
NONE
5DD
20DD
10DD
50DD
200DD
100DD
250DD
DIGFL1= n1 DIGFL2= n2 DIGFL3= n3
3rd Stage
Filter A verage
2nd Stage
Filter A verage
1st Stage
Filter A verage
Displayed
Value
n3
2nd Stage
Filter A verages
n2
1st Stage
Filter A verages
n1
A/D Readings
The 420HE uses averaged digital filtering to reduce the effect of vibration on weight readings. Adjustable thresh old and sensitivity functions allow quick settling by suspending filter averaging, allowing the weight reading to jump to the new value. Figure 7-3 shows the digital filter parameters on the CONFIG menu.
Figure 7-3. Digital Filtering Parameters on the Configuration (CONFIG) Menu
Figure 7-4. Flow Diagram for 420HE Digital Filters

7. 7. 1 D I G F L x Pa r a m e t e r s

The first three digital filtering parameters, DIGFL1, DIGFL2, and DIGFL3, are configurable filter stages that control the effect of a single A/D reading on the displayed weight. The value assigned to each parameter sets the number of readings received from the preceding filter stage before averaging (see

7.7.2 DFSENS and DFTHRH Parameters

The three digital filters can be used by themselves to eliminate vibration effects, but heavy filtering also increases settling time. The DFSENS (digital filter sensitivity) and DFTHRH (digital filter threshold) parameters can be used to temporarily override filter averaging and improve settling time:
Figure 7-4). The overall filtering effect can be expressed by adding
values assigned to the three filter stages:
the
DIGFL1 + DIGFL2 + DIGFL3
For example, if the filters are configured as DIGFL1=4, DIGFL2=8, DIGFL3=8, the overall filtering effect is 20 (4 + 8 + 8). With this configuration, each A/D reading has a 1-in-20 effect on the displayed weight value. Setting the filters to 1 effectively disables digital filtering.
DFSENS specifies the nu mber of consecutive scale readings that must fall
outside the filter threshold (DFTHRH) before digital filtering is suspended.
DFTHRH sets a threshold value, in display divisions. When
a specified number of consecutive scale readings (DFSENS) fall outside of this threshold, digital filtering is suspended. Set DFTHRH to NONE to turn off the filter override.
420HE Installation Manual - Appendix 45
Page 50

7.7.3 Setting the Digital Filter Parameters

XXXXXXX XXXXXXX ALGOUT DIGIN SETPNT XXXXXXX PROGRM PFORMT SERIAL CALIBR XXXXXXX CONFIG FORMAT
SOURCE
GROSS
0%
20%
OFFSET
ERRACT
FULLSC
HOLD
000000
number
MIN
10000
number
MAX
TWZERO
NET
ZEROSC
VERS
MINNEG
OFF
ON
MAXNEG
OFF
ON
Note
Fine-tuning the digital filter parameters greatly improves indicator performance in heavy-vibration environments. Use the following procedure to determine vibration effects on the scale and optimize the digital filtering configuration.
1. In setup mode, set all three digital filters (DIGF
L1, DIGFL2, DIGFL3) to 1. Set DFTHRH to NONE. Return indicator to normal mode.
2. Remove all weight from the scale, then watch indicator display to determine the
the magnitude of vibration effects on the scale. Record the weight below which all but a few readings fall. This value is used to calculate the DFTHRH parameter value in Step 4.
For example, if a heavy-capacity scale
duces vibration-related readings of up to 50
pro lb, with occasional spikes to 75 lb, record 50 lb as the threshold weight value.
3. Place the indicator in setup mode and set the
digital fi
lters (DIGFLx) to eliminate the
vibration effects on the scale. (Leave DFTHRH set to NONE.) Reconfigure as necessary to find the lowest effective values for the DIGFLx parameters.
4. With optimum values assigned to the DIGFLx parameters, calculate the DFTHRH parameter
by converting the weight value recorded
value in Step 2 to display divisions:
threshold_weight_value / DSPDIV
In the example in Step 2, with a threshold weight value of 50 lb and a display division value of 5lb:
50 / 5lb = 10DD. DFTHRH should
be set to 10DD for this example.
5. Finally, set the DFSENS parameter high enough to
ignore transient peaks. Longer transients (typically caused by lower vibration frequencies) will cause more consecutive out-of-band readings, so DFSENS should be set higher to counter low frequency transients.
Reconfigure as necessary to find the lowest
fective value for the DFSENS parameter.
ef

7.8 Analog Output Calibration

The following calibration procedure requires a multimeter to measure voltage or current output from the analog output module. If the option is not already installed, see Section 2.3.5 on page 8.
The analog output must be calibrated after the indicator itself has been configured (Section 3.0) and calibrated (Section 4.0).
Figure 7-5. Analog Output Menu
1. Enter setup mode and go to the ALGOUT menu (see Figure 7-5).
Set OFFSET to 0% for 0–10 V output,
20
% for 4–20 mA output
Set MIN to lowest weight value to be
tracked by
the analog output
Set MAX to highest weight value to be
tracked by
the analog output
2. Connect multimeter to analog output:
For voltage output, connect voltmeter
leads to pins three and four
F or current output, connect ammeter leads
to
pins one and two
46 420HE Installation Manual
3. Adjust zero calibration: Scroll to the TWZER
O parameter. Check voltage or current reading on multimeter. Press and hold to adjust the zero value up or down.
4. Adjust span calibration: Scroll to the TWSPAN parameter multimeter. Press and hold
. Check voltage or current reading on
or to adjust the
span value up or down.
5. Final zero calibration: Return to the TWZERO parameter a
nd verify that the zero calibration has not drifted. Press and hold re-adjust the zero value as required.
6. Return to normal mode. Analog output fu
nction can be verified using test weights.
or
or to
Page 51
Note

7.9 Test Mode

A/DTST
TEST
ADOFFS
ADGAIN
DEFLT
Exit
ENTER Move LEFT Move RIGHT
Not Used
Test mode is intended for factory use only.
In addition to normal and setup modes, test mode provides a number of diagnostic functions for the
420HE, including:
Display raw A/D count
Reset configuration parameters to default va
lues
A/D internal calibration
Figure 7-6. Test Mode Menu
To enter test mode, press and hold the setup switch until the front panel display
shows the word
TEST. After
about three seconds, the test mode display automatically shifts to the first test menu function, A/ DTST.
Figure 7-6 shows the Test Menu structure; Figure 7-7 shows the front panel key functions
in test mode. Note that, because the Test Menu functions are all on a single menu level, the function. Press the
GROSS/NET ( ) key has no
ZERO ( ) key to exit test mode.
Table 7-7 summarizes the test menu functions.
Figure 7-7. Front Panel Key Functions in Test Mode
TEST Menu
Function Description
A/DTST Display A/D test
Press and hold Enter key to display raw count from A/D converter.
DEFLT Default parameters
at the same time to reset configuration and calibration parameters to factory
Table 7-7. Test Mode Menu Functions
Press setup switch and Enter key default values. Load cells must be recalibrated before using the indicator (see Section 4.0 on page 27).
420HE Installation Manual - Appendix 47
Page 52

7.10 Regulatory Mode Functions

REGULAT
Parameter Value Weight on Scale Ta re in Sy s t e m
NTEP zero or negative no no action ZERO
yes CLEAR TARE
positive no TARE
yes TARE
CANADA zero or negative no no action TARE
yes CLEAR TARE
positive no TARE
yes no action
OIML zero or negative no no action ZERO
yes CLEAR TARE ZERO and CLEAR TARE
positive no TARE ZERO
yes TARE ZERO and CLEAR TARE
NONE zero or negative no TARE ZERO
yes CLEAR TARE
positive no TARE
yes CLEAR TARE
Front Panel Key Function
TARE ZERO
Table 7-8. TARE and ZERO Key Functions for REGULAT Parameter Settings

7.11 LED Functions

The following is a list of diagnostic LEDs for the
420HE. See Figure 2-3 7 for locations on the 420HE
CPU board.
Serial Port Status
LED1 (EDP Port) Flashing red = TXD activity
Flashing green = RXD activity On steady or off = No activity
LED2 (PRN Port) Flashing red = TXD activity
Flashing green = RXD activity On steady or off = No activity
Power Supply
LED (+5AV) Excitation/ADC supply on LED (+5V & +3.3V) Digital logic supply on
      
LED AD (ADC) Green = Active
Red = Fault
LED MEM (Memory Test) Green = Pass
Red = Fail LED ANA Red = Not Implemented (Analog Option Card)
Digital Input/Output Status
DO 1 (Digital Out 1) On when lit (active low) DO 2 (Digital Out 2) On when lit (active low) DI 1 (Digital In 1) On when lit (active low) DI 2 (Digital In 2) On when lit (active low)
Operation Status
LEDHB (Microprocessor) Flashing green = Active
Red = Fault
48 420HE Installation Manual
Page 53

7.12 Specifications

Power
Line Voltages 115 or 230 VAC Frequency 50 or 60 Hz Power Consumption 1.5 A @ 115 VAC (8W)
0.75 A @ 230 VAC (8W)
Fusing 2.5 A 5 x 20 mm fuse
Analog Specifications
Full Scale Input Signal Up to 22.5 mV Excitation Voltage +5V single sided
8 x 350 or 16 x 700 l
Sense Amplifier Differential amplifier with
4- and 6-wire sensing
Analog Signal
Input Range –0.5 mV/V to +4.5 mV/V
Analog Signal
Sensitivity 0.3 V/gra
1.5 V/gra
Input Impedance 200 M,
duation minimum, d recommended
typical Noise (ref to input) 0.3 V p-p with digital Internal Resolution 8,000,000 counts Display Resolution 100 000 dd Measurement Rate Up to 60 measurements/sec Input Sensitivity 10 nV per internal count System Linearity Within 0.01% of full scale Zero Stability 150 nV/°C, maximum Span Stability 3.5 ppm/°C, maximum Calibration Method Software, constants stored in EEPROM Common Mode
Voltage –2.35 to +3.45 V, referred to ground Rejection 130 dB minimum @ 50 or 60 Hz
Normal Mode
Rejection 90 dB minimum @ 50 or 60 Hz
Input Overload ± 12 V conti
nuous, static discharge
protected
RFI Protection Signal, excitation
protected by capacitor bypass
Analog Output Optional: ful
ly isolated, voltage or
current output,14-bit resolution. Voltage output: 0 –10 VDC Load resistance:1K minimum Current output: 0–20/4–20 mA External loop resistance: 500
ma
ximum
oad cells
filters at 4-4-4
, and sense lines
Serial Communications
EDP Port Full duplex RS-232 Printer Port Full duplex RS-232 or active transmit
on
ly 20 mA current loop
Both Ports 38400, 19200, 9600, 4800, 2400,
12
00, 600, 300 bps; 7 or 8 data bits;
even, odd, or no parity
Operator Interface
Display 6-digit LED display. 7-segment, 1.8 in
LED annunciators Gross, net, center of zero, standstill, lb/
Keypad 6-button keypad
(44.5 mm) digits
primary units, kg/secondary units, count, tare
Environmental
Operating Temperature–10 to +40°C (legal);
–10 to +50°C (industrial) Storage Temperature –25 to +70°C Humidity 0–95% relative humidity
Enclosure
Enclosure Dimensions 10.5 in x 12.5 in x 6.4 in
26.7 cm x 31.75 cm x 16.3 cm Weight 7.8 lb. (3.54 Kg) Rating/Material UL Type 4X
Certifications and Approvals
O
C
N
F
L
E
A
R
N
E
O
I
N
T
C
A
E
N
O
N
W
S
E
R
E
U
I
S
G
A
H
E
T
S
M
A
D
N
NTEP CoC Number 04-076 Accuracy Class III/III L
n
max : 10 000
Measurement Canada (Pending)
Accuracy Class III/III HD
n
max
: 10 000
Digital Specifications
Microcomputer Phillips PXAG30K main processor @
19.6608 MHz
Digital Inputs 2 inputs, TT
active-low Digital Outputs 2 outputs, 250 mA Max Sink Digital Filters 3 filters, software selectable
L or switch closure,
420HE Installation Manual - Appendix 49
Page 54

420HE Limited Warranty

Rice Lake Weighing Systems (RLWS) warrants that all RLWS equipment and systems properly installed by a Distributor or Original Equipment Manufacturer (OEM) will operate per written specifications as confirmed by the Distributor/OEM and accepted by RLWS. All systems and components are warranted against defects in materials and workmanship for two years.
RLWS warrants that the equipment sold hereunder will conform to the current written specifications authorized by RLWS. RLWS warrants the equipment against faulty workmanship and defective materials. If any equipment fails to conform to these warranties, RLWS will, at its option, repair or replace such goods returned within the warranty period subject to the following conditions:
Upon discovery by Buyer of such nonconformity, RLWS will be given prompt written notice with a detailed explanation of the alleged deficiencies.
Individual electronic components returned to RLWS for warranty purposes must be packaged to prevent electrostatic discharge (ESD) damage in shipment. Packaging requirements a re listed in a publication, Protecting Your Components From Static Damage in Shipment, available from RLWS Equipment Return Department.
Examination of such equipment by RLWS confirms that the nonconformity actually exists, and was not caused by accident, misuse, neglect, alteration, improper installation, improper repair or improper testing; RLWS shall be the sole judge of all alleged non-conformities.
Such equipment has not been modified, altered, or changed by any person other than RL WS o r its duly authorized repair agents.
RLWS will have a reasonable time to repair or replace the defective equipment. Buyer is responsible for shipping charges both ways.
In no event will RLWS be responsible for travel time or on-location repairs, including assembly or disassembly of equipment, nor will RLWS be liable for the cost of any repairs made by others.
THESE WARRANTIES EXCLUDE ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WITHOUT
LIMITATION WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. NEITHER RLWS NOR DISTRIBUTOR WILL, IN ANY EVENT, BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
RLWS AND BUYER AGREE THAT RLWS’ SOLE AND EXCLUSIVE LIABILITY HEREUNDER IS LIMITED TO REPAIR
OR REPLACEMENT OF SUCH GOODS. IN ACCEPTING THIS WARRANTY, THE BUYER WAIVES ANY AND ALL OTHER CLAIMS TO WARRANTY.
SHOULD THE SELLER BE OTHER THAN RLWS, THE BUYER AGREES TO LOOK ONLY TO THE SELLER FOR
WARRANTY CLAIMS.
NO TERMS, CONDITIONS, UNDERSTANDING, OR AGREEMENTS PURPORTING TO MODIFY THE TERMS OF THIS
WARRANTY SHALL HAVE ANY LEGAL EFFECT UNLESS MADE IN WRITING AND SIGNED BY A CORPORATE OFFICER OF RLWS AND THE BUYER.
© 2012 Rice Lake Weighing Systems, Inc. Rice Lake, WI USA. All Rights Reserved.
RICE LAKE WEIGHING SYSTEMS • 230 WEST COLEMAN STREET • RICE LAKE, WISCONSIN 54868 • USA
50 420HE Installation Manual
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PN 87972 12/12
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