OPERATING MANUAL
Factory Mutual approved Weighing Systems for hazardous (explosive) area application. Repair is expressly limited to factory trained service personnel.
Fairbanks Scales
HAZARDOUS ENVIRONMENT INDICATOR
Model H90-3052-D
50144 |
Revision 3 |
PRINTED IN U.S.A. |
1/12 |
50144 Rev. 4
TABLE OF CONTENTS
SECTION 1: DESCRIPTION………………………………………………………...4
1.1.Introduction…………………………………………………………………………………. 4
1.2.Specifications.……………………………………………………………………………….4
SECTION 2: FRONT PANEL………………………………………………………..5
2.1.Keys…………………………………………………………………………………………. 5
2.2.Indicators…………………………………………………………………………………….5
2.3.Displayed Legends………………………………………………………………………… 6
2.4.Blank Display……………………………………………………………………………….. 6
2.5.Low Battery Condition……………………………………………………………………... 6
2.6.Low Battery Legends……………………………………………………………………….6
2.7.Black Panel Description…………………………………………………………………… 6
SECTION 3: OPERATION………………………………………………………….. 7
3.1.Instrument Weighing Functions………………………………………………………….. 7
3.2.General Weighing Operations……………………………………………………………. 7
SECTION 4: BATTERY CHARGER………………………………………………. 8
4.1.Descriptions………………………………………………………………………………... 8
4.2.Specifications………………………………………………………………………………. 9
4.3.States of Operation…………………………………………………………………………9
4.4.LED State Reference Chart………………………………………………………………..10
4.5.Theory of Operations.……………………………………………………………………... 11
SECTION 5: INSTRUMENT SEALING…………………………………………… 12 SECTION 6: CONTROL DRAWINGS……………………………………………... 13
DISCLAIMER
Every effort has been made to provide complete and accurate information in this manual. However, although this manual may include a specifically identified warranty notice for the product, Fairbanks Scales makes no representations or warranties with respect to the contents of this manual, and reserves the right to make changes to this manual without notice when and as improvements are made to the product.
50144 Rev. 4
FIGURE 1-1: MODEL H90-3052-D
SECTION 1:
DESCRIPTION
1.1 Introduction
The model H90-3052-D indicator is a general purpose indicator that can be united with a wide variety of Fairbanks platforms. Stainless steel construction makes the instrument well suited for use in wash-down locations.
The H90-3052-D is battery operated for unlimited portability. The battery packs are rechargeable.
1.2 Specifications
1.Model Number:
H90-3052-D
2.Units: lb, kg
3.Display:
High visibility, 6 digit liquid crystal display, with 0.8 inch digits
4.Display Update Rate:
Programmable for 0.2, 0.4, 0.8 or 1.2 seconds
4
5.Digital Filter:
Programmable - 4 levels
6.Auto-Zero Tracking:
Programmable OFF, 0.6d, 1.0d, or 3.0d
7.Re-zero Range:
Programmable 0 to 100%, or 0 to +⁄– 2%
8.Filter Motion Band:
Programmable 0.5, 1.0, 2.0, 3.0d
9.Temperature Range:
Operating: – 10° to 40° C Storage: – 20° to 60° C
10.Controls:
18 key keypad
11. Battery Life:
Continuous operation, with one 350 ohm load cell, 55 hours
12. Capacity:
Min: 10 lb x .002 Max: 20,000 lb x 5
50144 Rev. 4
FIGURE 2-1: FRONT PANEL
SECTION 2:
FRONT PANEL
2.1 Keys
ON
Turns instrument ON, after battery pack replacement, when automatic shut-down mode turns instrument the OFF, or when the operator turns the instrument off.
OFF
Turns instrument OFF.
GROSS
NET
Toggles between GROSS and NET modes
AUTO
TARE
Enters the weight on the platform into TARE memory and sets the scale to the NET mode
UNITS
Toggles the indicators between lb and kg
5
ZERO
With the scale in GROSS mode, sets the display equal to ZERO and turns on the Center-Of- Zero indicator
TARE
RECALL
Causes display of current tare weight
TARE
ENTER
Enters tare weight as input by the operator through the numeric keypad
0 through 9
Numeric keys for manual input of tare weight
2.2 Indicators
NET
Net Mode
TARE
Tare Mode
lb pounds
kg kilograms
50144 Rev. 4
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