INSTROTECH 4004, 5004 Operating Manual

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Operating Manual for Models

Model 4004 / Model 5004

Programmable

Load Cell Indicator /

Controller

Safety

This equipment is supplied by a mains voltage which can cause an electric shock injury. Before removing the circuit board from its housing, switch the instrument off, isolate it from the mains power supply and make sure that it cannot be connected inadvertently by other persons.

If the circuit board is removed from its housing, do not apply power to the instrument unless specifically instructed to do so in these instructions. When working on live equipment, exercise great care, use insulated tools and test equipment, and do not work alone.

When fitting option boards, always put the circuit boards back in the housing with the back-plate securely fastened before powering up the instrument.

When handling circuit boards, ensure that full anti-static precautions are observed.

Replace external mains fuse with one of an equivalent type.

Cleaning

Do not clean the instrument while the instrument is on. Harsh abrasives, solvents, scouring cleaners and alkaline cleaning solutions, such as washing soda, should not be used especially on the display window. The outside of the instrument may be wiped down with a slightly damp clean cloth (lightly moistened with water only). Under no circumstances should you attempt to wipe the inside of the instrument.

Page 2

Contents

Introduction ......................................................................... Page 3

Electrical specifications ....................................................... Page 3

Input ranges ........................................................................ Page 3

Load cell excitation............................................................... Page 3

Power supply ....................................................................... Page 4

Programmable specifications ...............................................Page 4

Other specifications ............................................................. Page 4

Installation - Panel Cutout ................................................... Page 5

Installation - Fastening ........................................................ Page 5

Display & keypad during normal display mode ................... Page 5

Display & keypad during programming mode ..................... Page 5

Hardware links & general layout - model 4004.................... Page 6

Hardware links & general layout - model 4005..................... Page 7

Load cell & option connections ............................................ Page 8

RS232 / RS485 option ......................................................... Page 8

Power supply links ............................................................... Page 8

Setup procedure & calibration ............................................. Page 9

Programming chart .............................................................. Page 11

Display codes explained ...................................................... Page 12

Programming example ........................................................ Page 13

Asciibus protocol ................................................................. Page 14

Options................................................................................. Page 15

Option 3000 ............................................................... Page 15

Option 3001-P, 3001-M, 3002, 3003 .......................... Page 16

Option 3004-P, 3004-M, 3006, 3008, 3009..................Page 17

Option 3010, 3012, 3013, 3014...................................Page 18

Option 3016, ...............................................................Page 19

Option 3017-P, 3017-M, 3018-P, 3018-M,................... Page 20

Option 3022, 3025,3026,.............................................Page 21

Option 3029 ............................................................... Page 22

Diagram “P” ......................................................................... Page 24

Diagram “M” ........................................................................ Page 24

Declaration of conformity .................................................... Page 24

Guarantee ........................................................................... Page 24

See last few pages for details of options fitted / available

Introduction

The Model 4004 is a 4 digit (-1999 to 9999) LED indicator & Model 5004 is a 5 ½ digit (-199999 to 199999) LED indicator. These DIN 48 x 96, high accuracy, high-quality load cell indicators are designed for mV inputs from load cells, strain gauges & strain gauge pressure transmitters.

The stable bridge excitation voltage includes sense feedback to compensate for line variations. The precision differential instrumentation op amp front end input ensures high stability and accuracy.

Options include programmable voltage or current analog output, alarm setpoints up to four alarms, tare function (front pushbutton & remote), peak / valley (max / min) hold, RS 232 & RS485 serial interfaces & lots more.

A feature of this programmable indicator / controller is the calibration method. Pre-calibrated ranges can be allocated zero and full scale values and these can be adjusted on site to allow for back-balance (deadweight) offset and span calibration (test weight calibration).

The instrument meets European Community EMC directive 89/336/EEC and Low Voltage directive 73/23/EEC.

NOTE (1) : These 4 input sensitivities cover the vast majority of applications. For specialised requirements, please consult the factory.

Page 3

Electrical Specifications

Accuracy & linearity : 0.03% of F.S., or 1 count Internal resolution (Model 4004) : 20000 counts (bi-polar) Internal resolution (Model 5004) : 24 bits Temperature drift : 0.1µV / °C typically Conversion / settling time : 0.15 secs approx. (no filtering) Input amplifier impedance : 2 MW (differential) Operating temperature range : -10 to +50°C Storage temperature range : -40 to +80°C Humidity : < 85% non-condensing Warm-up time : 10 minutes

Electro-mechanical relays : 250V AC, 30V DC, 2A, PF=1 Solid state relays : 400 V AC/DC, 0.5A, PF=1 Analog output accuracy : 0.1% of full scale Current analog output load : 500 W maximum Voltage analog output load : 1 kW minimum Memory retention : Full non-volatile operation Option 3006 isolation rating : 1500 V Declaration of conformity : See last page

Input Ranges

-10 to +10mV (1 mV/V), -20 to +20mV (2 mV/V), -30 to +30mV (3 mV/V), -100 to +100mV (up to 10 mV/V). See note 1.

Load Cell Excitation

Sense feedback : Yes Voltage : ± 5V (bipolar), 10 volts total Temp. coefficient : 10ppm typical Max. number of LC's : 1 x 350W load cell (standard) Max. number of LC's : 4 x 350W load cells (with optional power supply)

Power Supply

Standard

95 - 265V AC/DC power supply option, 8VA typical

Optional

8 - 30 VDC isolated power supply , 8VA typical (Option 3008)

The standard power supplies provide power for up to four load cells.

Programmable Specifications

Page 4

Other Specifications

DIN 48 x 96 housing, 147mm depth Industrial strength single piece housing

Housing is flame retardant ABS plastic that meets UL94 V-0 Circuit board is flame retardant material that meets UL94 V-0

Front facia rating : IP65 (with o-ring seal supplied as standard)

Model 4004

Zero & full scale setting : -1999 to 9999 Decimal point : Adjustable on all digits Input sensitivity : 1, 2, 3 or 10mV/V Balance range adjustment : 100% of load cell capacity Tare range adjustment : 100% of load cell capacity Filtering range : 0 - 10.0 seconds

Options :

Analog output zero & span : -1999 to 9999 Alarm setpoint values : -1999 to 9999 Alarm hysteresis : 0 to 255 (default 1) Alarm delay : 0 to 255 seconds (default 0) Alarm relay settings : Selectable HIGH or LOW alarm Alarm relay state : Selectable NO or NC Unit address : 1 to 127 (0 is for factory use) Baud rate : 2400, 4800, 9600, 19200

Model 5004

Zero & full scale setting : -199999 to 199999 Decimal point : Adjustable on all digits Input sensitivity : Programmable 0 - 10mV/V Balance range adjustment : 100% of load cell capacity Tare range adjustment : 100% of load cell capacity Filtering range : 0 - 10.0 seconds

Options :

Analog output zero & span : -199999 to 199999 Alarm setpoint values : -199999 to 199999 Alarm hysteresis : 0 to 255 (default 1) Alarm delay : 0 to 255 seconds (default 0) Alarm relay settings : Selectable HIGH or LOW alarm Alarm relay state : Selectable NO or NC Unit address : 1 to 127 Baud rate : 2400, 4800, 9600, 19200

Min

Installation

DIN 1/8 cutout

Installation

Page 5

Panel Cutout

Min

Fastening

147

During normal display mode

(illuminated whenever

Print on demand (comms option only)

Toggle peak / normal mode

Reset peak value (option 3012 only)

Tare function (option 3014 only)

Alarm LEDs

relays are energised)

(option 3012 only)

Display & Keypad

2 3 41

O-ring sealing gasket supplied as standard

The supplied fastening clips may be fitted on

the side or the top / bottom of the housing.

Ensure that the clip & screw is mounted as shown here.

Caution : Do not overtighen the screws.

To gain access to the circuit boards, switch power off and remove terminals from the back of the housing. Observe safety precautions. Use a screwdriver to clip the back-plate off.

During programming mode

All dimensions in mm

Programming menu

Increment digit / change selection

Move to next digit

Enter

Display & Keypad

2 3 41

Hardware Links & General Layout

Model 4004

Option

board

connector

on Circuit Board (Model 4004 only)

DISPLAY BOARD

Remember : Configuring this instrument requires two steps:

(1) Select the correct hardware links as shown. (2) Program the instrument with the programming chart on page 10.

Page 6

Select Sensitivity Link

Up to 10 mV / V

Up to 3 mV / V Up to 2 mV / V Up to 1 mV / V

Live (- DC supply input)

Neutral (+ DC supply input)

Alarm 2 or Data + (Rx)

Alarm 1 or Data - (Tx)

Alarm Common

Ground (common)

Remote tare

Remote peak / valley hold reset

- Excitation

- Sense

+ Sense

+ Excitation

+mV input

- mV input

Interposing relays recommended for

heavy duty

applications

Hardware Links & General Layout

Model 5004

Option

board

connector

DISPLAY BOARD

3.3 V excitation(Link A only)

5.0 V excitation(Link C only)

Page 7

Select Excitation Link

on Circuit Board (Model 5004 only)

A and C is 10V excitation

10V excitation(Link A and C)

ABC

Live (- DC supply input)

Neutral (+ DC supply input)

Alarm 2 or Data + (Rx)

Alarm 1 or Data - (Tx)

Alarm Common

Ground (common)

Remote tare

Remote peak / valley hold reset

- Excitation

- Sense

+ Sense

+ Excitation

+mV input

- mV input

Interposing relays recommended for

heavy duty

applications

Load Cell & Option Connections

1. - mV

3. + Exc

4. +Sense

2. + mV

Link Sense to Excitation

if remote sense is

5. - Sense

not used.

Circuit board

7. Reset

6. - Exc

Remote peak / valley hold reset (option 3012)

101112

8. Tare

9. DGND

Alarm com

Remote tare (option 3014)

Alarm 1

Alarm connections for option 3001/4-P only.

Solid state relays, 400V AC/DC,

0.5 A max, PF=1

Interposing relays recommended for heavy duty applications

Page 8

RS232 / RS485 Option

If the RS232 or RS485 option is ordered, then

the alarm relays can be found on the option card that slots in the top part of the housing.

See diagram “P” or “M” on the last page.

10.

11. - D(Tx)

Live (-)

Neut (+)

Alarm 2

9. DGND

use pins 11 & 12.

use pins 9, 11, 12.

Place hardware links as shown in the diagrams.

Remember : Configuring the 4004 requires two steps. (1) Select the

correct hardware links as shown. (2) Program the instrument with the programming chart on page 10.

12. +D(Rx)

For RS485,

For RS232,

Power Supply Links

No links.

Page 9

Setup Procedure & Calibration

REFER TO THE PROGRAMMING FLOW CHART on page 10 while using this setup procedure. This instrument offers an easy & straightforward way to pre-calibrate and field calibrate the load cell system. Follow the steps below:

Step 1 : Setting instrument sensitivity

The load cell sensitivity must be set in via jumper link J4 on the circuit board (see circuit board layout diagram on page 6). The sensitivity setting must also be set in the programming menu (use the programming chart on page 10 to assist you, as well as the examples below). If the load cell system sensitivity is not exactly one of the pre-determined ranges of 1mV/V, 2mV/V, 3mV/V or 10mV/V, then use the next highest sensitivity. E.g. if the load cell sensitivity is 1.6mV/V, then use the 2mV/V range. Remember to set the sensitivity link (J4) on the circuit board as well.

See example 1 and 2 below.

Step 2 : Entering the decimal point, the load cell zero, and the full scale capacity value

The load cell can be pre-calibrated by entering the zero and load cell full scale capacity in the programming menu. The load cell system zero value can normally left at 0 for the pre-calibration. The load cell full scale capacity is then entered.

Example 1:

Example 2:

For a 1 x 5.000 ton load cell that has a 3mV/V sensitivity.

Carefully remove circuit board from the housing and link for 3mV/V on jumper J4 (see step 1 above).

Program the instrument as follows:

- Go to the “Inp” and “Cal” menu.

- Set “3 mV” which represents the load cell sensitivity.

- Set decimal point to "o.ooo” (three decimal places).

- Set load cell "zero" to "0.000".

- Set load cell full scale capacity "LC.FS" to "5.000".

The instrument has now been pre-calibrated.

For a 3 x 1000 kg load cell system with 2mV/V each.

Carefully remove the circuit board from the housing and link for 2mV/V on jumper J4 (see step 1 above).

Program the instrument as follows:

- Go to the “Inp” and “Cal” menu.

- Set “2 mV” which represents the load cell sensitivity.

- Set decimal point to “oooo” (no decimal point).

- Set load cell “zero” to “0”.

- Set "LC.FS" to "3000" (as there are 3 x 1000 kg load cells).

The system has now been pre-calibrated.

Step 3 : Field calibration of load cell system for back-balance (deadweight)

Page 10

Make sure that steps 1 & 2 on the previous page have been completed before proceeding with step 3.

The following procedure removes the deadweight from the weighing system (which is normally the bin / hopper / scale weight), and returns the display reading to show zero with the bin empty.

Make sure that the bin / hopper is empty. Use the programming chart to go to “Inp”, followed by “Tare”. Press enter. The display will flash “Tare” indicating that the instrument is measuring and averaging the bin weight. Allow for a few seconds of averaging, then press the enter (star) button to stop the process. The instrument will exit programming mode and the display should read zero.

Step 4 : Field calibration of span (test weight calibration)

Make sure step 3 above has been completed before proceeding with step 4.

The following procedure allows the weighing system to be accurately calibrated using test weights.

Place the test weights on the bin / hopper / scale. The instrument should read the weight of the test weights. If the reading is not of sufficient accuracy, then use the programming chart to go to "Inp", followed by "LOAD" and press enter. The instrument now prompts you to enter the weight of the test weights. Then press enter. The display will flash “LOAD” for a few seconds, indicating that the instrument is measuring and averaging the tests weights in the bin / hopper / scale. The instrument automatically exits programming mode after a few seconds.

Step 5 : Store away calibrated instrument parameter for future use

Once steps 1 - 4 above have been completed, the instrument automatically alters the pre-calibration parameters “Zero” and “LC.FS” in the “CAL” sub-menu (entered in step 2 above). These altered parameters may not resemble the original values entered by the user. This is normal as these parameters fully characterise the weighing system.

DO NOT change these parameters. It is suggested that these parameters be noted for future use, especially if the instrument is replaced. These parameters can be re-entered into the new instrument with the result that reasonable accuracies can still be obtained without re-doing a field calibration. This is especially useful when minimum downtime is critical, and to avoid wastage if failure occurs when the bin / hopper still contains materials. It is still recommended that complete field calibration is done when the situation permits.

Programming Chart

START

HERE

Alarms /

setpoints /

only (Option

3001/4/17/18)

Page 11

READ ME FIRST !

Note 1 : This programming chart is a simplified flowchart for users that have previous experience with this instrument. A programming example is

available in the next few pages to assist new users in understanding this programming chart.

Note 2 : Because this instrument has many options, all possible option menus are shown. Options that are not ordered will not appear in the

programming sequence. Note 3 : Configuring this instrument requires two steps. (A) Select the correct hardware links (page 6). (B) Program the instrument with this chart. Note 4 : To enter programming mode, press the menu key for a few seconds (unless the optional keypad lock has been set). Programming mode timeout

is about 20 seconds. If no key is pressed for 20 seconds during programming, the instrument returns to normal display mode.

, , , ,

to accept

new value

, ,, , , , ,,, ,

for menu

(Similarly for alarm 2, 3 & 4)

Alarms /

setpoints /

only (Option

3001/4/17/18)

Analog output

only (Option

3003 / 3007)

RS485 / 232 only (Option 3002 / 3013)

Tare,

Peak / Valley

hold only

(3012 / 3014)

Keypad lock

only

(Option 3025)

,, ,

Allow a few seconds of tare averaging.

, , ,,

Then press the “star” key.

Automatic exit from menu after a few seconds

NOTE : "incr” on Model 5004 only

, , , ,, , , ,

, , , , ,

(Similarly for alarm 2, 3 & 4)

, , , , , , , , , , , ,

, , ,

“END”. Instrument returns to normal display mode.

, ,,,, ,

, ,

, ,, , ,,

, , ,

,, , , , , ,,

Display Codes Explained

1st, 2nd, 3rd, 4th setpoint value

Alarm configuration menu (shown for 1st alarm only)

1st alarm setpoint select HIGH / LOW alarm

1st alarm setpoint normally OPEN / CLOSED contact

1st alarm setpoint hysteresis

1st alarm setpoint delay

Analog output menu

Output selection (0-10V, 0-20mA, 4-20mA)

Output zero selection

Output full scale selection

Communications menu (RS232 / RS485)

Unit address (default 0)

Available baud rate values

Protocol selection. On = AsciiBus. Off = DigiBus.

Option menu for Tare feature and Peak / Valley Hold

Tare feature select (auto-zero / auto-tare)

Turn the tare feature on or off

Peak / valley hold feature (min / max hold)

Turn the peak / valley hold feature on or off

Peak / valley hold selector

If “off”, peak hold mode. If “on”, valley hold mode

Lineariser option

Turn the linearsier feature on or off

Page 12

The number of points to linearise the curve

. . . 2 - 16 points

Actual displayed value

Linearised displayed value

Input & calibration sub-menu

Sub-menu for manual setting of deadweight / back-balance and load cell capacity (pre-calibration).

Sub-menu for field calibration of deadweight / back-balance. Press the “star” key to start process.

Sub-menu for field calibration of span using test weight method. Set to test weight value and press the “star” key to start process.

During field calibration of deadweight / back-balance, display flashes “tare” until the “star” key is pressed.

During field calibration using test weights, display flashes “load” until the “star” key is pressed.

Load cell sensitivity (up to 1mV/V, up to 2mV/V, up to 3mV/V, up to 10mV/V.

Load cell (display) decimal point selection (non-floating point)

Manually entered back-balance (dead weight) value (enter as positive value)

Manually entered load cell full scale capacity (e.g. enter 1000 for a 1000 kg load cell system)

Load cell input filter with a range of 0 to 10.0 seconds. Default is 0.0.

Model 5004 only. Display increment. Value range is 0 - 100. e.g. "10” would give a dummy zero.

Process overscale. Input has exceeded full scale value. / Display test mode.

Hardware overrange. Reduce input signal to reduce saturation.

Keypad lock security menu. See Option 3025 more information.

Keypad lock security level. Level 0 = none,

Display Codes Explained

Clock

On / Off

Time

Hour, Minute, Second (24 hr mode)

Date

Day, Month, Year

Page 13

Continued

Programming Example

Setting Up Alarm Values (Option)

Remember, the symbols on the keypad have the following

Next Menu

Item

Increment digit Next Digit

Accept value

Press “Menu” for 3 seconds

Press “Enter” to see Alarm / Trip 1 value.

Press “Increment digit” to increase value

Press “Next digit” to amend the next digit

Enter /

Amend the other digits in the same way until the desired trip value is entered.

Press “Enter” to accept Alarm 1 value.

Press “Menu” to proceed to next trip value.

Use the same menu steps above to change trip levels for trip 2, 3 and 4.

The entire programming menu operates in a manner similar to the example described above.

Page 14

Asciibus Protocol (for Option 3002 / 3013)Communications

IGNORE THIS PAGE unless communications option has been ordered. When the RS232 (option 3013) or RS485 (option 3002) is ordered, two protocols are made available, namely ASCIIbus & DIGIbus protocols. DIGIbus is the default protocol which is used for the calibration and configuration of the instruments, and whenever the instrument is connected to master-slave systems. DIGIbus protocol is therefore used in complex bus systems, and is NOT described here. Please contact factory for the DIGIbus protocol.

ASCIIbus, which is described here, is much easier to use as it can easily interface to third party systems with very little engineering work required. It is a purely ASCII based (7 bit) protocol. The protocol is essentially designed for one way communications (instrument to PC). Under the "Conn" (connection) programming menu, ASCIIbus is enabled by selecting "ASCI" to "ON". If "OFF" is selected, the DIGIbus protocol will be active. Although designed for one way communications only, the ASCIIbus protocol contains an address. The address range is "00" to "99".

Using address "00" : If this address is selected, the instrument will only transmit data on demand by either momentarily pressing the 'menu' key, or by transmitting a byte (any ASCII character) to the DPM. This mode is useful for interfacing to printers. In addition, field ' A A ' will contain the ASCII character "blank/space". Field ' P ' will also contain the ASCII character "blank/space". Using address "01" to "99". If any of these addresses are used, the meter continuously transmits information at approximately 5 times a second.

The data format string output from the indicator is (7 bit ASCII code is used): Line Settings : 7 Data Bits, 1 Parity bit, Odd Parity, 1 Stop Bit. Baud Rate : Selectable 2400, 4800, 9600, 19200. Data Bits : Numerical ASCII characters : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

Other ASCII characters : #, blank/space, +, -, CR, LF

Protocol format is : # A A S D D D D D D D D P CR LF

where : # = indicates start of message

: A A = Instrument address. ASCII 00 to 99. 00 is default. : S = sign (polarity) ( ASCII "+" or "-" ). : D = data bits (data for 8 numerals). See Note (1). : P = decimal point position. ASCII 0 to 8. : CR = ASCII carriage return. : LF = ASCII line feed.

The output will follow the display reading. This means that if the peak-hold option has been ordered and activated, the communications output will peak-hold as well.

Note 1 : This protocol allows for future expansion. Therefore if Model 4001 is used for example, the first four digit data will contain the ASCII character "blank/space" and the last four digits will contain the display reading. Similarly, if the Model 5001 is used for example, the first 2 digit data will contain the ASCII character "blank/space" and the last six digits will contain the display reading.

Page 15

Option 3000

The lineariser option is used for non-linear input signals. A 16 point straight line approximation lineariser is provided. The user can enter any number of points from 2 (Linear input signals) to 16. The greater the number of points, the greater the accuracy of the linearisation. Every actual display point has a corresponding linearised display point.

Lineariser (Model 5004 only)

DISPLAY CODES EXPLAINED

PROGRAMMING CHART

Lineariser

On Off Number of Linearisaton Points

Linearisation points Actual Display Value Linearised Display Value

SETUP:

- The instrument must be setup and calibrated as instructed in the manual.

- The user must then apply test signals and record the actual readings on the display.

Analog output

- The user must then activate the lineariser and enter the actual reading with the

only (Option

3003 / 3007)

corresponding desired reading.

- The instrument can be checked by applying the original test signals and verifying the display.

NOTE:

- If the input signal is beyond the limits of the last actual point entered then the unit will calculate the slope between the last 2 actual values and

use this to calculate the required linearised display.

Keypad lock

- Do not enter the same actual value for 2 or more points. The unit will compare and select the first sequential point in memory and use this.

only

- The lineariser points is a mirror image for negative input signals.

(Option 3025)

Page 16

Two Set Points (Solid-State Relays)Option 3001-P

See page 7 for connection details. However, if option 3002 / 3013 is also fitted, then the relays are fitted on an option board that slots into the upper slot of the panel meter box (terminals numbered 13-28). See diagram “P” on page 20 for the relay connections. Wire for AL1 & AL2 only.

Two Setpoint Alarms (Electro-Mechanical Relays)Option 3001-M

This option provides two alarm setpoints with electro-mechanical relays. This option board slots into the upper slot of the panel meter box. The upper terminals are clearly numbered 13-28 to differentiate them from the lower terminals. Both normally open and normally closed contacts are provides with each relay. The relays are rated at 250VAC / 30VDC @ 2A. Visual LED alarm indication is provided on the panel meter front. For connection wiring details, see diagram “M” on page 20. Connect wires for AL1 & AL2 only.

RS485 Communications OptionOption 3002

See page 7 for connection details. Select DIGIbus or ASCIIbus protocol from the program menu. See additional protocol documents.

0 - 20mA / 4 - 20mA / 0 - 10V Analog Output OptionOption 3003

This option is provided on an option board that slots into the upper slot of the panel meter box. The upper terminals are clearly numbered 13-28 to differentiate them from the lower terminals. See diagram “M” or “P” on page 20 for wiring details.

Page 17

One Setpoint Alarm (Solid State Relay)Option 3004-P

One Setpoint Alarm (Electro-Mechanical Relay)Option 3004-M

This option is similar to option 3001-M described above, but offers one alarm relay only. See option 3001-M above for more information, but wire for AL1 only.

Isolated Options (Analog Output / RS232 / RS485)Option 3006

This is ordered with option 3002, 3003, 3007 or 3013. It provides a minimum of 1500V isolation between input and output signal. Wiring connections are different for these isolated options. Use diagram “P” or diagram “M” on page 20 for wiring connections.

Galvanic Isolation (8 - 30V DC Supply) OptionOption 3008

This power supply option provides 8 - 30V DC supply isolated. See page 7 for connection details. This option also provides excitation for up to four load cells.

Parallel BCD Output OptionOption 3009

This option is supplied as an additional slot-in card in the top part of the instrument housing. See the additional documentation. Note that this option cannot be used in conjunction with any of the alarm setpoint options, nor with the bar graph display option.

Page 18

95V-265V AC / DC Power Supply OptionOption 3010

This options allows the instrument to operate from a wide range of AC & DC power supplies. The supply connections are on page 7. This option also provides excitation for up to four load cells.

Peak Or Valley (Max or Min) Hold OptionOption 3012

This option displays and holds the maximum or minimum value (not both) of an input signal. This option is activated in the programming menu “Opt” by selecting whether “Hold” should be “On” or “Off”, and selecting whether valley (”valy” = “On”) or peak (”valy” = “Off”) hold should be displayed.

The display can be toggled to show the peak / valley value or normal value by toggling the “up” arrow key (press for about 3 seconds each time). For rapid response to step changes on the input, ensure that the filter in the programming menu is set to 0.0. To reset the peak / valley hold value, press the “side” arrow key for 3 seconds, or use an external potential free contact (see page 7 for connection details). If analog output option is fitted, the output will hold as well.

RS232 Communications OptionOption 3013

See the additional documentation supplied for protocol details & page 7 for connection details. Ensure that maximum cable length from instrument to PC is less than 15 metres.

Tare / zero functionOption 3014

This option allows the operator to zero the display at any time and continue the measurement from that point in time. This option is activated "ON" or "OFF" in the "Opt” menu during programming (see page 10).

During normal operations, pressing the “star key” for 3 seconds will zero the display. The display can also be zeroed via an external potential free contact (see page 7 for connection details). The display can be zeroed at any time over and over again.

If the analog output option is fitted, the output will follow the display.

Page 19

Option 3016

6 Load Cell Booster

This option is a separate DIN-rail mount external power supply to provide excitation for up to 6 x 350W load cells. Wiring instructions are shown on the option housing and also on the diagram on the right. If only four load cells are used, then Option 3010 is recommended.

-Sig

+Sig

+Ex Out

+Ex

+Ex Out

8 9

106

11 12

8 9

106

-Ex

This loadcell booster is capabable of

providing excitation for six loadcells.

- Ex Out

8 9

+Ex In

- Ex Out

11 12

106

L N

11 12

3016 Booster

Terminals

- Ex In

GND

Model 4004 /

5004

AC supply

Earth

Live

E L N

NLE

Option 3016 label connections to indicator

Neut

Page 20

Option 3017-P

This option provides three alarm setpoints with solid state relays. This option board slots into the upper slot of the panel meter box. The upper terminals are clearly numbered 13-28 to differentiate them from the lower terminals. Only normally open contacts are provided, which means that should the contacts be closed and the power fails, they will revert to a normally open condition. The relays are rated at 400V AC /DC @ 0.5A. Visual LED alarm indication is provided on the panel meter front. For connection wiring details, see diagram “P” on page 20. Connect wires for AL1, AL2 & AL3 only.

Three Alarm Setpoints (Solid State Relays)

Three Alarm Setpoints (Electro-Mechanical Relays)Option 3017-M

This option provides three alarm setpoints with electro-mechanical relays. This option board slots into the upper slot of the panel meter box. The upper terminals are clearly numbered 13-28 to differentiate them from the lower terminals. Both normally open and normally closed contacts are provides with each relay.The relays are rated at 250VAC / 30VDC @ 2A. Visual LED alarm indication is provided on the panel meter front. For connection wiring details, see diagram “M” on page 20. Connect wires for AL1, AL2 & AL3 only.

Four Alarm Setpoints (Solid State Relays)Option 3018-P

This option is similar to option 3017-P, but contains four relays (see option 3017-P). For connection wiring details, see diagram “P” on page 20. Connect wires for AL1, AL2, AL3 & AL4.

Four Alarm Setpoints (Electro-Mechanical Relays)Option 3018-M

This option is similar to option 3017-M, but contains four relays (see option 3017-M). For connection wiring details, see diagram “M” on page 20. Connect wires for AL1, AL2, AL3 & AL4.

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Vertical Bar Graph Display Option (Model 4004 only)Option 3022

This option is only available on Model 4004. The vertical bar-graph display option provides a graphic linear representation of the process variable being measured. The bar graph’s zero and full scale setting is programmed by the ‘Outp’ sub-menu of the programming menu, which also controls the analog output option. The ‘Out.O’ controls the zero point of the graph, and the ‘Ou.Fs’ controls the full scale value of the graph. See the programming menu page 10 for more information.

Keypad Lock OptionOption 3025

The keypad lock option is used to prevent un-authorised access to the programming menu. When this option is ordered, a new submenu called “CODE” appears at the end of the programming sequence. See programming page 10. Three levels of keypad lockout are available: Level 0 - Full access to programming menu, Level 1 - User only has access to alarm setpoint values and Level 2 - Total programming menu lockout. If this option is ordered, the factory default is “Lev 0”. If the keypad has been locked with either level 1 or 2, then the word “PASS” will appear on the display if the user attempts to enter programming mode. Pressing the menu key will return the instrument to normal display mode. However, if the user wishes to enter the programming menu, then when the word “PASS” appears, press in succession, 1 second apart, all four keys from right to left.

Display Hold OptionOption 3026

The option is at no-extra charge and allows the user to freeze the display via an external potential-free contact. Closing the switch will freeze the display. See page 7 for wiring connections.

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Time and Date Stamp (Model 5004 only)Option 3029

This option will output to an ascii printer or computer the date, time and displayed data. Only in conjunction with option 3002 or 3013.

This option is only available for the model 5004. This option allows the user to time and date stamp the display value either by momentarily pressing the ‘menu’ key, or by transmitting a byte (any ASCII character) to the unit. This option is very useful to interface to serial printers.

DISPLAY CODES EXPLAINED

Clock On

Off

Time Hour, Minute, Second Date

Day, Month, Year

(24 hr mode)

Option 3029

Analog output

only (Option

Data Protocol Format

3003 / 3007)

Continued

Protocol format is: #_HH:MM:SS_DD/MM/YY_S_ _DDDDDD_CR/LF

- Decimal point is in the same position as the display decimal point.

- See option 3002/3013 for more information on the Asciibus Protocol.

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PROGRAMMING CHART

Protocol format is : _ = Space

: S = Sign : # = indicates start of message : D = data for 6 numerals. : CR = ASCII carriage return. : LF = ASCII line feed

NOTE:

- The time is only available in 24hr mode.

- This option comes standard with options 3013 (Rs232 Communications Option).

Instrument returns to normal menu display.

Diagram “P”

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Declaration of Conformity

AL1

AL2 AL3

NO NO NONO

1 2 3 4 5 6 7 8 9 10 11 12

AL4

+D (Rx)

-D (Tx)

Comms GND

19 20 25 26 27 2813 14 15 16 17 18 21 22 23 24

Diagram “M”

AL4

AL3

AL1

NC NO

1 2 3 4 5 6 7 8 9 10 11 12

AL2

NCNO

19 20 25 26 27 2813 14 15 16 17 18 21 22 23 24

+ Voltage output

+ Current output

N(+) L(-)

+ Voltage output

+ Current output

N(+) L(-)

- Output

Upper Terminals (Option boards)

Lower Terminals (Mother board)

Upper Terminals (Option boards)

Lower Terminals (Mother board)

Programmable Load Cell

Indicator / Controller

Manufacturer : DPM

Type : 4004, 5004 Options : 3000 to 3029

Corresponds to the requirements of the following EC directives:

EMC directive : 89/336/EEC Low voltage directive : 73/23/EEC The applicable harmonised standards are : EN 50081-1

: EN 50082-1 : EN 61010

Guarantee

This product is guaranteed against faulty workmanship or defective material, for a period of 2 (two) years from date of delivery.

The manufacturer undertakes to replace without charge all defective equipment which is returned to it (transportation costs prepaid) during the period of guarantee, provided there is no evidence that the equipment has been abused or mishandled in any way.

The manufacturer reserves the right to alter any specification without notice.

INSTROTECH 4004, 5004 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

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