Sterling Scale 825 User Manual

STERLING SCALE COMPANY

810 HIGH ACCURACY WEIGHT INDICATOR

AND

825 HIGH ACCURACY PIECE COUNTER

USERS MANUAL

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Revision 4.4	Copyright ©2004Sterling Scale Co., Inc.	March 2005
Web Site: www.sterlingscale.com	E-mail: [e-mail]

Table of Contents
		Pages
INSTALLATION------------------------------------------------------------------------------------------------		1- 4
Unpacking/Inspecting		1
Load Cell Wiring		2
Connecting Scale 2		2
Connecting External Power Supply		2
DW810 Universal Bracket		3
810/825 Assembly Drawing		3
Installing the Platter Assembly		3
Jumper Settings		4
PARAMETER SETUP AND CALIBRATION-----------------------------------------------------------		5 - 12
Parameter Setup		5
Parameter List with Parameter Explanation		5 – 11
Calibration Setup		11
OPERATION ---------------------------------------------------------------------------------------------------		13 -18
Weighing Operation		13-14
Weigh Keys		9-12
Counting Operation		15
Count Mode Keys		15
Typical Fixed Sample Counting Operation		16
Typical Variable Sample Counting Operation		17
Typical Reverse Counting Operation		17
Typical Average Piece Weight Counting Operation		18
ID Numbers		18
PRINTERS ------------------------------------------------------------------------------------------------------		19 -22
Ticket and Tape Printer Driver		19
Model 795 and 895 Printer Driver		20
Model LD-2 Printer Driver		21
COMMUNICATION -------------------------------------------------------------------------------------------		23 - 25
RS-232 Serial Interface		23
RS-232 Connector		23
Output Protocol		23
Computer Output Format		24
Scoreboard Output Format		25
Remote Control Codes		25
External Zero Switch		25
SPECIFICATIONS --------------------------------------------------------------------------------------------		26 - 27
WARRANY INFORMATION --------------------------------------------------------------------------------		28
_____________________________________________________________________________________________________________
Revision 4.4	Copyright ©2004Sterling Scale Co., Inc.	March 2005
Web Site: www.sterlingscale.com	E-mail: [e-mail]

PLEASE READ BEFORE ASSEMBLY INSTALLATION

Unpacking and Inspecting

Unpacking and Inspecting

1.Upon receipt of the shipment, check for any shipping damage. If there is damage then report it to your shipping carrier immediately.

2.Carefully unpack all contents from the shipment.

3.Save all shipping material in case contents require transporting at a later date.

4.The contents of the shipment should include the following:

Qty: Item:

1 Instrument with options installed.

1 External power supply if desk mount or NEMA 1 enclosure is provided.

1 Instruction sheet.

1 Hardware kit.

If any of the above items are missing, contact your dealer immediately.

Assembly

The instrumentation is shipped fully assembled. If the unit shipped to you is a desk mount indicator, it contains a built-in scale and connecting the load cell is not necessary. If you received a wall mount, a stainless steel, or a standard enclosure the load cell may need to be connected.

Connecting Load Cell

1.Disconnect power to the indicator.

2.Set the unit on a flat surface, open unit and locate “P4” on the lower part of the board.

3.Feed the load cell cable, through the strain relief on the left.

4.Connect the load cell cable to the load cell interface connector, “P4” on the circuit board.

5.Verify that jumpers “J2” and “J3” are installed on the circuit board.

INSTALLATION

Page 1

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Revision 4.4	Copyright ©2004Sterling Scale Co., Inc.	March 2005
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Pin	Name	Description
1	+EX	+ Excitation voltage (+10 VDC)
2	+SN(+EX2)	+ Sense line (+Excitation scale 2)
3	+SG	+ Signal line
4	-SG	- Signal line
5	-SN(-EX2)	- Sense line (-Excitation scale 2)
6	-EX	- Excitation voltage (GND)
7	SHD	Shield
8	+SG2	(+Signal scale 2)
9	-SG2	(-Signal scale 2)

The load cell interface connector is P4 on the circuit board, located in the lower left hand corner.

Connecting Scale 2

Scale 2 is an option on the 825. Scale 2 does not use sense wires. Scale 2 can be connected following the above pin assignments.

Please Note: The +SN and – SN terminals are used to provide + and – Excitation to the second scale.

Connecting External Power Supply

-NEMA 1 enclosures are supplied with a transformer power supply, which plugs into the wall.

Power Required – 117 VAC ! 10 VAC, 60 Hz

-NEMA 12 and NEMA 4 enclosures are supplied with a 6’ power cord with a standard 3-prong connector.

Power Required – 117 VAC ! 10 VAC, 60 Hz

-Desk enclosures are supplied with a transformer power supply, which plugs into the back of the instrument and the transformer plugs into the wall.

Power Required – 117 VAC ! 10 VAC, 60 Hz

INSTALLATION

Page 2

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Revision 4.4	Copyright ©2004Sterling Scale Co., Inc.	March 2005
Web Site: www.sterlingscale.com	E-mail: [e-mail]

Mounting brackets are supplied with the NEMA 1 standard and NEMA 4 stainless steel enclosures.

(See diagram for proper positioning)

INSTALLATION

Page 3

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Revision 4.4	Copyright ©2004Sterling Scale Co., Inc.	March 2005
Web Site: www.sterlingscale.com	E-mail: [e-mail]

Jumper Settings

In order for the 810/825 to operate as desired hardware, Jumpers must be set properly. Most of the jumper setting’s are set correctly at the factory and never need to be altered, but occasionally there is a need to alter a jumper setting, therefore they are shown below

Jumper List

Number	Name	Setting	Description
J8	NTEP/CTS	NTEP	Enable NTEP operation
		CTS	Enable CTS flow control
J9	RAM	8K	Use 8K RAM
		32K	Use 32K RAM
J10	EPROM	256	Use 27C256 EPROM
		512	Use 27C512 EPROM
J12	Back light	On	Back light on
		Off	Back light off
J13*	Load Cell Sense (+)	On	Not using load cell sense wires (+)
		Off	Using load cell sense wires (+)
J14*	Load Cell Sense (-)	On	Not using load cell sense wires (-)
		Off	Using load cell sense wires (-)

*NOTE: Jumpers “J13” and “J14” must both be either connected or disconnected to avoid improper weighing and/or possible damage to the indicator.

INSTALLATION

Page 4

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Revision 4.4	Copyright ©2004Sterling Scale Co., Inc.	March 2005
Web Site: www.sterlingscale.com	E-mail: [e-mail]

Parameter Setup Operation

Parameter setup may be accessed using the following method:

1.From the Weigh Mode press and hold the GROSS/NET key. The DW810/825 displays “GRSNET” to signify that the GROSS/NET key has been pressed. After approximately 3 seconds the indicator displays “PARAMS” at which time the key may be released. If the indicator responds with the message “LOCKED”, then Jumper “J8”

is the wrong position. Jumper “J8” must be removed before access to Parameter Setup is allowed. (See Jumper Settings)

2.Once access is allowed to Parameter Setup, the NTEP F parameter along with its

current value is displayed.

NOTE: Always set to “F” unless factory set.

3.Press the PRINT key to select the desired parameter.

4.Press the TARE key to select the value for the currently selected parameter.

5.Press the PRINT key to save the currently selected parameter.

6.Repeat steps 3 thru 5 until parameters are set as desired.

7.Press the GROSS/NET key or RESET key to exit Parameter Setup.

Parameter List

PARAMETER SETUP AND CALIBRATION

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Revision 4.4	Copyright ©2004Sterling Scale Co., Inc.	March 2005
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Name	Values	Description
ZT	0	Zero tracking disabled
(Zero Tracking)	0.2	Zero tracking at ± 0.2 graduations
	0.6	Zero tracking at ± 0.6 graduations
	1	Zero tracking at ±1 graduation
	3	Zero tracking at ± 3 graduations
		This scale will be re-zeroed within the chosen graduation
DA	OFF	Digital averaging disabled. (Fast update – recommended for applications
(Digital Average)		where speed is a prime consideration, such as filling operations)
	LOW	Digital averaging at low (Norma setting for parts counting)
	MED	Digital averaging at medium (Normal weighing applications)
	HI	Digital averaging at hi (Recommended for areas with heavy vibrations)
ZR	1.5	Zero range at 1.5 percent of full scale
(Zero Range)	100	Zero range at 100 percent of full scale
U	LB.	Pounds only
(Units)	KG	Kilograms only
	G	Grams only
	LB/KG	Pounds to Kilogram conversion
	LB/G	Pounds to Grams conversion
	KG/G	Kilogram to Gram conversion
	ALL	Pounds, Kilogram, Grams conversion counting operation
		is disabled
MB	0	Motion band disable (Not recommended for normal operations)
(Motion Band)	0.1	Motion band at 0.1 graduations (Most sensitive setting counting)
	0.2	Motion band at 0.2 graduations (Counting and weighing with printer)
	0.3	Motion band at 0.3 graduations (Light vibrations and air movement
	0.4	Motion band at 0.4 graduations (Standard setting)
	0.5	Motion band at 0.5 graduations
	0.6	Motion band at 0.6 graduations
	0.7	Motion band at 0.7 graduations
	0.8	Motion band at 0.8 graduations
	0.9	Motion band at 0.9 graduations (Least sensitive)
	1.0	Motion band at 1.0 graduations (Least sensitive)
SM	OFF	Setpoint Off
(Setpoint Mode)	CUT	Setpoints set for cutoff operations
	COM	Setpoints set for comparator operations
SA	NO	Normally open
(Setpoint Activation)	NC	Normally closed
SD	QTY	Setpoints operate will quantity displayed
(Setpoint Data)	GRS	Setpoints operate with gross displayed
	NET	Setpoints operate with net displayed
SS	F	Setpoints will activate even when the scale is in motion
(Setpoint Stable)	T	Setpoints will activate only when the scale is stable

PARAMETERS SETUP AND CALIBRATION

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Revision 4.4	Copyright ©2004Sterling Scale Co., Inc.	March 2005
Web Site: www.sterlingscale.com	E-mail: [e-mail]

Name	Values	Description
OF	CMP	Computer output format
(Output Format)	SCB	Scoreboard output format
	1* 290	Output format for 290 and 695 printers* (See Printer Section)
	1* 695	Output format for 795 printers* (See Printer Section)
	1*LD2	Output format for LD2 printers* (See Printer Section)
CO	F	On demand output with PRINT key
(Continuous Output)	T	Continuous output of data (Typically used with computer and scoreboards)
RS	232	Serial interface is RS-232 (Standard)
(Interface)		or 20 mA current loop (Optional)
	422	Serial interface is RS-422 (Optional)
	485	Serial interface is RS-485 (Optional)
B	150	Baud rate at 150 bits per second
(Baud Rate)	300	Baud rate at 300 bits per second
	600	Baud rate at 600 bits per second
	1200	Baud rate at 1,200 bits per second
	2400	Baud rate at 2,400 bits per second
	4800	Baud rate at 4,800 bits per second
	9600	Baud rate at 9,600 bits per second
	19200	Baud rate at 19,200 bits per second
P	NONE	Parity disabled
(Parity)	ODD	Parity set for odd
	EVEN	Parity set for even
DBIT	7	Data bits at 7 bits
(Data Bits)	8	Data bits at 8 bits
FC	F	If not using flow control
(Flow Control)	T	If using flow control
STTN	F	If a station number is not required
(Station)	T	If a station number is required (Choose station 1 – 99)
SN	F	If the serial number does not need to be changed
(Serial Number)	T	If the serial number must be changed (Incremented number for the output)
SMP	F	If not changing the sample scale
(Sample Scale)	T	If changing the sample scale
		(Counting operation only)
CNT	F	If not changing the count scale
(Count Scale)	T	If changing the count scale
		(Counting operation only)
TIME	F	If not setting the time and date
(Option)	T	If setting the time and date
LOCK	F	If not locking keyboard access to parameters
(Parameter Lockout)	T	If locking keyboard access to parameters
		Used in conjunction with Jumper J8 on the 810825 boards
DR	F	Dual Range Disabled
(Dual Range)	T	Dual Range Enabled

1* Available only with Print Drivers (See Printer Section)

PARAMETER SETUP AND CALIBRATION

Page 7

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Revision 4.4	Copyright ©2004Sterling Scale Co., Inc.	March 2005
Web Site: www.sterlingscale.com	E-mail: [e-mail]

Parameter Explanation

NTEP

Selects Natinonal Type Evaluation Program (NTEP) mode.

FCAL

Scale Calibration and Configuration (see calibration setup).

ZT

Zero tracking automatically zeros the scale approximately once a second if the gross weight is less than the selected number of graduations from current zero. This parameter is used to correct zero errors due to load cell drift, temperature changes, or deadload drift

(dust, evaporation, …).

DA

Digital averaging is used to “smooth out” the displayed weight reading. Increasing digital

Averaging will stabilize the weight reading if mechanical vibration is present.

ZR

Zero range selects the percent of full scale capacity, which is allowed to be zeroed,

Referenced to the calibration point.

U

Units of weight selects the units to be displayed.

MB

Motion band is used to set how stable the scale must be to perform certain scale Operations (zero, tare, print, …). The motion on the scale must be less than the selected number of graduations to perform the scale operation.

SM

Selects the setpoint mode. Three setpoint outputs is an option on the 810/825.

SA

Selects the setpoint activation. Three setpoint outputs is an option on the 810/825.

SD

Selects the setpoint data. Three setpoint outputs is an option on the 810/825.

SS

Selects setpoint stability. Three setpoint outputs is an option on the 810/825.

OF

Selects the format to be output (see COMMUNICATION: Output Formats).

PARAMETER SETUP AND CALIBRATION

Page 8

_____________________________________________________________________________________________________________

Revision 4.4	Copyright ©2004Sterling Scale Co., Inc.	March 2005
Web Site: www.sterlingscale.com	E-mail: [e-mail]