Junction Box and Summing Cards With or Without Optional Integrated Technician Stainless Steel Now with Class I, II, III, Div 1 or ATEX & IECEx Hazardous Certifications
The Hardy HI 6020 Summing box is a critical component in a weighing system that enables the use of Hardy’s core technologies - C2® electronic calibration and Integrated Technician® (IT).
Each summing box distributes excitation voltage to up to four load cells and transfers each load cell’s performance characteristics and weight signals to the Hardy weighing instrument. Hardy has added a lock to the front of stainless steel enclosures that permit a tight seal without using screws.
A summing card with IT allows a weighing instrument operator to switch to the summing card’s internal test circuit and diagnose the entire weighing system from the front panel of the instrument or a remote location over the Internet. Individual load cells can be isolated from each other for weight and voltage readings, allowing a technician or operator to quickly and safely troubleshoot weighing system faults and anomalies.
The HI 6020 Summing box is available with a variety of options, including IT, trim pots (for non-Hardy load cells), and a NEMA 4X enclosure in stainless steel, painted steel, or fiberglass. The enclosure features a thick-wall design with an interior seal for a long-lasting, robust wash-down installation. Each box comes with six packaged hole plugs and six cable grip fittings suitable for load cell cables with an outside diameter of 1/4 to 3/8 inches. The ATEX and IECEx (-EX models) are designed for installation with intrinsic barriers and do not come with any glands or hole plugs.
A single HI 6020 Summing Box supports up to 4 load cells. To connect two HI 6020 Summing Boxes together to support between 5 and 8 load cells, use the TB6 Auxiliary connection between boxes and order one of the summing boxes with six holes.
The HI 6020 Junction Box is UL and CE compliant and is rated for installation in Hazardous Locations:
- HI6020IT-SSX-Y and HI6020JB-SSX-Y: USL/CNL Class I, II, III, Div 1 Groups ABCDEFG intrinsically safe per drawing 0594-0007 and 0594-0008
- HI6020JB-SSX-Y-EX and HI6020IT-SSX-Y-EX models: ATEX & IECEx Ex ia IIC T4 intrinsically safe per drawing 0594-0011 and 0594-0012 ATEX Certificate No. DEMKO 17 ATEX 1819; IECEx Certificate No. IECEx UL 17.0009
- HI6020IT and HI6020JB: USL/CNL Class I, II, III, Div 2, Groups ABCDFG (except -EX versions)
Max number of Load Cells
- 8 (with two junction boxes)
Enclosure
- Choice of None, Stainless Steel, Painted Steel, or Fiberglass.
- The Stainless Steel enclosure comes with a front locking mechanism that ensures a tight steel or in a Legacy Format that uses four screws.
Hazardous Area Certifications
- HI6020IT-SSX-Y and HI6020JB-SSX-Y: USL/CNL Class I, II, III, Div 1 Groups ABCDEFG intrinsically safe per drawing 0594-0007 and 0594-0008
- HI6020JB-SSX-Y-EX and HI6020IT-SSX-Y-EX models: ATEX & IECEx Ex ia IIC T4 intrinsically safe per drawing 0594-0011 and 0594-0012 ATEX Certificate No. DEMKO 17 ATEX 1819; IECEx Certificate No. IECEx UL 17.0009
- HI6020IT and HI6020JB: USL/CNL Class I, II, III, Div 2, Groups ABCDFG (except -EX versions)
PCB Dimensions
- 4.88" (12.38 cm) x 4.88" (12.38 cm)
- Removeable Phoenix Terminal Block
- 7 pin, 1 row, 3.5 mm pitch
Auxiliary Port for Connecting Junction Boxes
- TB6 (optional)
Predrilled Hole Size
- 0.875 inches (22.2 mm)
Temp Range
- -10 to +60°C (14 to 140°F)
Max Current Consumption with Integrated Technician:
- 58mA with 4 x 350 ohm load cells
- 116mA with 8 x 350 ohm load cells
- 19mA with 4 x 1100 ohm load cells
- 38mA with 8 x 1100 ohm load cells
Max Current Consumption with Trimming Pots:
- 58mA with 4 x 350 ohm load cells
- 116mA with 8 x 350 ohm load cells
- 19mA with 4 x 1100 ohm load cells
- 38mA with 8 x 1100 ohm load cells
Power Ratings
- HI6020IT: 5 VDC, Class 2, max. 50 mA
- HI6020JB (sum card, fiberglass & painted steel): 2-15 VDC, Class 2, max. 275 mA
- HI6020JB Stainless Steel for Hazardous Areas: 5 VDC, Class 2, max. 50 mA
- HI6020IT & HI6020JB Class I, Div 1 versions: Power must be supplied through approved
intrinsically safe barriers per control drawing 0594-0007 (HI 6020JB) or 0594-0008
(HI6020IT) - HI6020IT & HI6020JB ATEX and IECEx versions: Power must be supplied through approved intrinsically safe barriers per control drawing 0594-0011 (HI6020JB) or 0594-0012 (HI6020IT)
Holes/Glands
- 5 holes (standard)
- 6 holes (for TB6 connections)
- Non ATEX/IECEx versions: Each box comes packaged with six hole plugs and cable grip fittings for load cell cables with an outside diameter of .169 to 0.449 in (4.3 to 11.4 mm)
- ATEX/IECEx (-EX versions): Does not include glands or hole plugs. For use with Intrinsic Barriers Only
Warranty
- Two-year warranty against defects in workmanship
All specifications are subject to change without notice. Please contact the Hardy factory or visit our website for the latest specifications.
The Hardy Process Toolbox is a set of productivity tools that support industrial weighing functions. Each tool saves time, increases accuracy, improves efficiency, or reduces risk in process weighing applications, including C2® electronic calibration, and Integrated Technician® to name just a few.
Hardy load cells support the following Hardy Process Toolbox functions when coupled with a Hardy Instrument and Hardy C2® cable.
C2® (or eCAL) Electronic Calibration
The Hardy C2® (or eCAL as it is known in China) core feature provides quick and easy electronic calibration of a weighing system without the need for heavy test weights.
INTEGRATED TECHNICIAN® Operator Diagnostics
Hardy's INTEGRATED TECHNICIAN (IT) core feature helps you troubleshoot your weighing system and diagnose problems from the front of the instrument or via the PLC. These tests display system weights, voltages, and pass/fail displays to help isolate a problem to the instrument, cabling, or sensors, helping to reduce maintenance costs.
