FUTEK IPM500 User Manual

IPM490 & IPM500

DIGITAL PANEL METER OWNERS MANUAL

10 Thomas, Irvine, CA 92618, USA

Tel: (949) 465-0900

• Fax: (949) 465-0905 • Website: www.futek.com

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1. TABLE OF CONTENTS

1. TABLE OF CONTENTS............................................................................................... 2

2. TEDS INTRODUCTION............................................................................................... 2

3. IPM490 / IPM500 INTRODUCTION............................................................................. 3

4. RECEIVING & UNPACKING ....................................................................................... 4

5. SAFETY CONSIDERATIONS...................................................................................... 4

6. CONNECTOR WIRING INFORMATION ..................................................................... 5

7. MECHANICAL ASSEMBLY ......................................................................................... 7

8. FRONT PANEL SETUP KEYS .................................................................................... 9

9. ENABLING & LOCKING OUT MENU ITEMS .............................................................. 11

10. READING COORDINATES OF 2 POINTS SCALING METHOD................................. 12

11. DC VOLTS, AMPS, PROCESS, STRAIN INPUT......................................................... 13

12. LOAD CELL & MICROVOLT INPUT............................................................................ 18

13. AC RMS VOLTS & AMPS INPUT ................................................................................ 23

14. THERMOCOUPLE INPUT........................................................................................... 29

15. RTD & RESISTANCE INPUT ...................................................................................... 32

16. DUAL & QUAD RELAY OUTPUT OPTIONS .............................................................. 37

17. ANALOG OUTPUT OPTION ....................................................................................... 40

18. SERIAL COMMUNICATION OPTIONS ....................................................................... 41

19. TEDS INTERFACE ...................................................................................................... 44

20. EXCITATION OUTPUT & POWER SUPPLY............................................................... 46

21. METER CALIBRATION ............................................................................................... 47

22. SPECIFICATIONS ....................................................................................................... 50

23. GLOSSARY OF TERMS.............................................................................................. 54

2. TEDS INTRODUCTION

TEDS, or Transducer Electronic Data Sheet, is based on the IEEE 1451.4 standard. TEDS enabled sensors contain an EEPROM that stores sensor information such as serial number, calibration dates, and calibration factors. An IPM500 display with a TEDS reader will automatically retrieve this information once a TEDS enabled sensor is plugged into the system. This greatly simplifies calibration and configuration of the sensor. Please see Section 19 for setup.

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3. IPM490 / IPM500 INTRODUCTION

IPM digital panel meters are versatile, cost effective solutions to a wide variety of monitoring and control applications. Depending on the choice of signal conditioner, they are easily set up for an accurate display of load, weight, pressure, torque, voltage or current, all in appropriate engineering units and with zero and span adjustment. Setup can be via front panel pushbuttons or the meter’s serial interface. Selective security lockout of the front panel keys protects against accidental changes to meter setup.

High read rates up to 60 per second (50 for 50 Hz operation) are made possible by Concurrent Slope Conversion (Pat 5,262,780), which integrates the signal over an AC power line cycle for maximum noise rejection. High read rates provide accurate peak and valley capture, and quick response for control applications. An adaptive digital filter supplies a time constant for the encountered signal noise level, yet responds rapidly to changes that exceed a selected threshold. Self-calibration occurs automatically after every 17th reading.

The standard power supply is a high-efficiency switching unit that operates from AC or DC, and allows the meters to be powered from worldwide AC without changes. A low-voltage supply is optional for power from 10-48V batteries or from 12-30 Vac. Both supplies provide an isolated 5, 10 or 24Vdc transducer excitation output.

The meter case conforms to the 1/8 DIN size standard. It is made of high impact, 94V-0 ULrated plastic and is watertight to NEMA-4 (IP65) when panel mounted (not verified for UL certification). Mounting is from the front of the panel and requires less than 110 mm behind the panel. Power and signal wiring is via removable plugs conforming to UL61010C safety standards. All output options are isolated from meter and power ground to 250 Vac.

Extended IPM meter versions can linearize nonlinear inputs. Up to 180 data points may be linearized by a computer program that stores setup parameters in nonvolatile memory. Extended meters can also display rate of change, for example to display flow rate based on changing tank level.

Alarm or setpoint control is provided by an optional relay board with two or four Form C 8A mechanical relays or two or four Form A 130 mA solid state relays. The setpoints may be latching or non-latching, be energized above or below the setpoint, or operate in a fail-safe mode. The relays can operate from the filtered signal to reduce relay chatter or from the unfiltered signal for fastest response. Snubber circuits and a programmable relay switching time delay extend relay contact life.

An isolated analog output of 4-20 mA, 0-20 mA, 0-10V or -10 to +10V can be provided by an optional analog output board. The output is linearized to the display and can operate from the filtered or unfiltered signal input. It can be scaled via front panel pushbuttons or the meter’s serial interface.

USB, RS232, or RS485 (2-wire half-duplex or 4-wire full-duplex) serial communications options are available with Series 2 meters utilizing the Modbus protocol or a simpler custom ASCII protocol. Modbus operation includes RTU or ASCII modes, up to 247 digital addresses, and up to 32 devices per RS485 line without a repeater. A USB-to-RS485 converter board allows a meter to be interfaced to a PC and to multiple meters on an RS485 network.

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4. RECEIVING & UNPACKING

Your meter was carefully tested and inspected prior to shipment. Should the meter be damaged in shipment, notify the freight carrier immediately. In the event the meter is not configured as ordered or the unit is inoperable, return it to the place of purchase for repair or replacement. Please include a detailed description of the problem.

5. SAFETY CONSIDERATIONS

Warning: Use of this equipment in a manner other than specified may impair the pro-

tection of the device and subject the user to a hazard. Visually inspect the unit for signs of damage. If the unit is damaged, do not attempt to operate.

Caution:

• This unit must be powered with AC (mains) from 95-240 Vac ±10% with the high voltage power supply option, or 12-30 Vac (10-48 Vdc) with the low voltage power supply option. Verify that the proper power option is installed for the power to be used. This meter has no AC (mains) switch. It will be in operation as soon as power is connected.

• The 95-240 Vac mains connector (P1 Pins 1-3) is colored Green other input and output connectors. The 12-30 Vac (10-48 Vdc) mains connector is colored Black

.

• Do not make signal wiring changes or connections when power is applied to the instrument. Make signal connections before power is applied. If reconnection is required, disconnect the AC (mains) power before such wiring is attempted.

• To prevent electrical or fire hazard, do not expose the instrument to excessive moisture.

• Do not operate the instrument in the presence of flammable gases or fumes; such an

environment constitutes a definite safety hazard. This meter is designed to be mounted in a metal panel.

• Verify the panel cutout dimensions, and mount according to instructions.

Symbols used

Caution (refer to accompanying documents)

Operating environment:

Caution, risk of electric shock. Both direct and alternating current.

Equipment protected throughout by double

insulation or reinforced insulation.

Earth (ground) terminal.

to differentiate it from

The meter is Class II (double insulated) equipment designed for use in Pollution degree 2.

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6. CONNECTOR WIRING INFORMATION

CONNECTORS

Connectors for signal and power are UL-rated screw-clamp terminal blocks that plug into mating jacks on the printed circuit board. Communication connectors are a single RJ11 plug for RS232, dual RJ11 plugs for RS485, dual RJ45 plugs for RS485 Modbus, or USB.

Note: Control inputs 1 & 2 of P1 are menu

selectable.

Warning: Hazardous voltages may be present

on pins 4, 5 & 6 of P1 since digital ground is tied to pin 3 of P5 (-Signal Input). Keep pin 3 close to earth ground to minimize common mode voltage or shock hazard at pins 4, 5 & 6 of P1.

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P3 - SERIAL COMMUNICATIONS P4 - ANALOG OUTPUT

RS232 INTERFACE Computer

N/C ISO GND RX TX RTS N/C

RS485 INTERFACE - FULL DUPLEX

ISO GND BRX ARX ATX BTX ISO GND

6 5 4 3 2 1

GND TX RX RTS

RS485 INTERFACE - HALF DUPLEX

6 5 4 3 2 1

GND BTX ATX ARX ARX GND

ISO GND

ATX / ARX BTX / BRX ISO GND

6 5 4 3 2 1

GND

ATX / ARX BTX / BRX GND

RS485-MODBUS - FULL DUPLEX RS485-MODBUS - HALF DUPLEX

(A') RXD0 (B') RXD1 +

(B) TXD1 * (A) TXD0 -

ISO GND

1 2 3 4 5 6 7 8

TXD0 TXD1

RXD1 RXD0

GND

(B) TX/RXD1 (A) TX/RXD0

ISO GND

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1 2 3 4 5 6 7 8

(B) TX/RXD1 (A) TX/RXD0

GND

7. MECHANICAL ASSEMBLY

REMOVING THE REAR PANEL

First remove any connectors. Use one hand to press in the two sides of the rear of the case, and the other hand to press down the two protruding tab releases at the top of the rear panel (see figure below). This will unhook the rear panel from the case.

Retaining tab

with tab release

Retaining tab

Retaining tab with tab release

Retaining tab

Rear Panel

REMOVING THE ELECTRONICS

With the rear panel removed, grasp the power supply board to the left and signal conditioner board to the right, and carefully slide the electronic assembly out through the rear of the case. (see figure below).

INSTALLING NEW 0PTION BOARDS

Options boards plug into the main board at the front of the meter. These are plug-and-play and may be in the field. They will be recognized by the software, which will provide access to the menu items associated with that board. If necessary, remove rear panel knockouts for new boards. Boards plug into connectors as follows:

Option Board Main Board Plug Rear Panel Jack

Power supply Relay board Serial interface board Analog output board Signal conditioner board

P11 P12 P13 P14 P15

J1 J2 J3 J4 J5

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Note: Corresponding main board and option board connectors have the same number of

electrical lines. When an option board is correctly installed, the top and bottom edges of the main board and option board are aligned.

REASSEMBLING YOUR METER

Slide the electronics assembly into the case until the display board is seated flush against the front overlay. Insert the bottom tabs of the rear panel into the case, and then carefully align the board connectors with the openings in the rear panel. If necessary, remove any rear panel knockouts for new option boards that may have been installed. Ensure that all option boards are properly aligned with the molded board retaining pins on the inside of the rear panel. Once the rear panel is in place, reinstall the input/output screw clamp terminal plugs.

PANEL MOUNTING

Ensure that the panel mounted gasket is in place against the back of the bezel. Turn the two mounting screws counterclockwise until the space between the mounting pawl and the rear of the gasket is greater than the panel thickness. Insert the meter in the panel cutout. Turn the mounting screws clockwise until the meter is securely mounted in the panel. Do not overtighten.

Dimensioned case drawings

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8. FRONT PANEL SETUP KEYS

Meter Front Panel

There are four front panel keys, which change function for the Run Mode and Menu Mode,

effectively becoming eight keys. The keys are labeled with alphanumeric captions (MENU, PEAK, RESET, ALARMS) for the Run Mode and with symbols (

right triangle, up triangle, left arrow) for the Menu Mode.

FRONT PANEL LOCKOUT

right arrow,

The Menu Mode will not work with most meters as received from the factory, since all menu items have been disabled in software and a lockout jumper is in place. That jumper needs to

be removed for the Menu Mode to work, and menu items under Loc 1, Loc 2 and Loc 3 then

need to be set to "0" via the front panel for these menu items to be unlocked See Section 9. The paragraphs below assume that all menu items have been unlocked.

MENU MODE KEY ACTION

In the Menu Mode, pressing a key momentarily advances to the next menu item. Holding

down a key automatically advances through multiple menu items for fast menu navigation.

KEYS IN RUN MODE

MENU Key. Pressing MENU from the Run Mode enters the Menu Mode. Pressing

MENU repeatedly will step the meter through the various menu items (if these have not been locked out) and then back to the Run Mode.

PEAK Key. Pressing PEAK normally causes the peak value of the input signal to be

displayed. The peak display then blinks to differentiate it from the normal present value

display. Pressing PEAK again returns the display to the present value. The PEAK key

can also be programmed to display Valley, alternating Peak or Valley, or to Tare the reading to zero. When Peak or Valley is selected, periodic horizontals bars at the top of

the display indicate Peak, and periodic horizontals bars at the bottom indicate Valley.

RESET Key. Pressing RESET with PEAK resets peak and valley values. Pressing RESET with ALARMS resets latched alarms. Pressing RESET with MENU performs a

meter reset (same as power on). Meter reset can also be applied via a rear panel

connect or a serial ASCII command. ALARMS Key. Pressing ALARMS once displays the setpoint for Alarm 1. Pressing it

again displays the setpoint for Alarm 2. Pressing it again returns to the present value.

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KEYS IN MENU MODE

Right Arrow Key (MENU). Pressing

have been enabled and then back to the Run Mode. With the DC signal conditioner

board and no option boards, available menu items are _InPut, SEtuP, ConFG, _FiLtr,

dEc.Pt, SCALE, OFFst, Loc 1, Loc 2, Loc 3. If a change has been made to a menu

item, that change is saved to non-volatile memory when the

and StoreE is displayed briefly.

Right Triangle Key (Digit Select).

steps the meter through all menu items that

key is pressed next,

• Pressing

meter's signal conditioner. For the DC signal conditioner, these are _dC U, _dC A and _rAtio.

• Pressing menus items sequentially selects digit positions 1 - 5, as indicated by a flashing digit:

00000, 00000, 00000, 00000, 00000.

• Pressing

which will flash: d.dddd dd.ddd ddd.dd dddd.d ddddd. .ddddd.

Up Triangle Key (Value Select). Pressing decimal point position) will increment that item. Pressing MENU will save any changes.

Left Arrow Key (Reverse Menu). Pressing

except that menu items are brought up in reverse order.

from the InPut menu brings up all meter functions available with the

from the SEtuP, ConfFG, FiLtr, SCALE, OFFSt, Loc 1, Loc 2 or Loc 3

from the dEC.Pt menu item sequentially selects decimal point positions,

for a flashing item (digit position or

has the same effect as the MENU key,

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9. ENABLING & LOCKING OUT MENU ITEMS

For security reasons and ease of meter operation, any and all menu items may be disabled or "locked out" so that they are no longer directly accessible from the front panel. Each function to be disabled

in menu items Loc 1, Loc 2 or Loc 3, and each function to be enabled set to "0." The top menu items Loc 1, Loc 2 and Loc 3 can in turn be

locked out by installing an internal hardware jumper. With the jumper installed the jumper removed

Loc 2 and Loc 3.

SETTING HARDWARE LOCKOUT JUMPER

To access the lockout jumper, remove the rear panel per Section 9 and

locate jumper “a” in the lower portion of the power supply board next to

the input connectors (see figure at right).

SETTING SOFTWARE LOCKOUTS

When setting up the meter, it may be necessary to enable specific menu items by setting the corresponding lockout digit to 0. Be sure to reset the lockout digit to "1" if you do not want the menu item to be changed by an operator.

Loc 1 Loc 2 Loc 3

Press the MENU key until Loc 1, Loc 2 or Loc 3 is displayed, as desired. Note: the hardware lockout

jumper must be removed (see above).

11111

Press 1’s and 0’s. The left digit will flash. Press step to the next digit, which will flash.

00000

12345 Press

menu item or to "1" to disable. Press MENU to enter.

See the table to the right for list of menu items that can be enabled or disabled.

, the operator only has access only to enabled menu items. With

, the operator also has access to menu items Loc 1,

to display the lockout status, consisting of

again to

to set the flashing digit to "0" to enable the

is set to "1"

Enabled or Disabled Menu Items

Loc 1

1 - Input type selection. 2 - Meter setup, configuration

& decimal pt.

3 - Filter selection. 4 - Scale or Lo, Hi input. 5 - Offset or Lo, Hi reading

Loc 2

2 - Alarm setup. 3 - Alarm setpoint value

programming.

4 - Analog output scaling. 5 - Serial interface setup.

Loc 3

2 - View peak value 3 - View alarm setpoints 4 - Reset (peak & latched alarms) 5 - Reset (meter reset)

is

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10. READING COORDINATES OF 2 POINTS SCALING METHOD

When the reading coordinates of 2 points scaling method has been selected under SEtuP, the four menu items below will appear ahead of all other menu items when the MENU or

key is first pressed from the run mode.

This scaling method applies a straight line fit between two points, which are determined from actual transducer signals and the desired corresponding meter readings. A low signal, such as the output of a pressure transducer at zero pressure, and high signal, such as the output of the same transducer at a known high pressure, are applied to the meter. The desired corresponding low and high readings are then entered from the front panel. The meter then applies straight line fit between the high and low calibration points. This scaling method has the advantage of calibrating the transducer and meter as a system. The actual voltage or current at either point does not need to be known. This method is ideal for process and load cell meters, which require zero and span adjustment. It is also available for DC or AC meters. It is not available with thermocouple or RTD meters.

The programming example below is for a process meter used with a 4-20 mA pressure

transducer for 0 to 100 psi. Decimal points are set separately using the dEC.Pt menu.

Press Menu Select Key

Lo In Apply low signal input

(e.g., transducer output for 0 psi).

Hi In Apply high signal input

(e.g., transducer output for known 100.00 psi source).

Lo rd

Mode to enter desired low reading (e.g., 0.00).

Hi rd

Mode to enter desired high reading (e.g., 100.00).

Press Digit Select Key

_40.21 Press to display

reading at low signal input (e.g., 4.021 mA).

200.94 Press to display

reading at high signal input (e.g., 20.094 mA).

000.00 000.00 000.00

000.00 000.00 Select digit

to flash.

000.00 000.00 000.00

000.00 000.00 Select digit

to flash.

Press Value Select Key

_40.21 Press to store low

reading.

200.94 Press to store high

reading.

100.00 Select -9 thru 9 for flashing first digit, 0 thru 9 for

other flashing digits.

100.00 Select -9 thru 9 for

flashing first digit, 0 thru 9 for

other flashing digits.

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11. DC VOLTS, AMPS, PROCESS, STRAIN INPUT

The DC Volts, Amps, Process and Strain meters utilize the DC signal conditioner board, which needs to be configured via jumpers for the desired voltage or current range. All signal ranges are factory calibrated with calibration factors stored in EEPROM. The meter software recognizes the board and will bring up the appropriate menu items for it; however, it does not recognize the jumper settings. Please see further manual sections for setup of the following: relay output (16), analog output (17), communications (18), and transducer excitation output (19).

Voltage Ranges

FS Input E1 E2 E3

±200.00 mV ±2.0000 V ±20.000 V ±200.00 V ±300V (UL) ±600V (not UL)

A A B B B B

f

f h h g g

b a b a a a

B

A

a

E3

h

f

Current Ranges

b

g

FS Input E1 E2 E3

±2.0000 mA ±20.000 mA ±200.00 mA ±5.000 A

1. Use 5 mm (0.2") jumpers for locations designated by a capital letter.

2. Use 2.5 mm (0.1") jumpers for locations designated by a lower case letter.

3. Store spare jumpers on an unused jumper post not SCALE & OFFSET SETUP

A A A A

e, g d, g c, g

a, b, g

b b b b

associated a capital letter.

c

d

e

E1

E2

b

a

For DC voltmeters & ammeters, a scale factor of 1 and an offset of 0 are used for direct

readings in (milli)volts or (milli)amperes. Decimal point selection does not affect the displayed digits. For example, 0-20V or 0-20 mA signals can both be displayed as 0-20000. A full scale of 20000 may be displayed as 20.000 mA or 20000 µA. Use with a current shunt will require a scale factor to be set. For example, for a 500-100 (500A, 100 mV) shunt, divide 5000 (the desired full scale display with 0.1A resolution) by 10000 (displayed value with 100 mV when the scale factor is 1.0) for a scale factor of 0.5.

For process & strain meters, scaling is normally set up from the front panel using the

keys. The meter allows three scaling methods to be selected: 1) Scale and offset,

2) Coordinates of 2 points, and 3) Reading coordinates of 2 points. Only menu items

applicable to the selected method will be presented.

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and

KEYSTROKES FOR SETUP

If the MENU

key does not work, see Section 9 “Enabling & Locking Out Menu Items.”

Press Menu Select Key

_InPut

Selection of signal input type & range

SEtuP

Meter Setup

Press Digit Select Key

_dC U

DC Volts

_dC A

DC Amps

_rAtio

Strain gauge & ratio

00_00

Display selection with scale factor of 1.

00 _00

Power line frequency

00_ 00

Scaling method

Press Value Select Key

__0.2U __2.0U _20.0U 200.0U 600.0U

0.2, 2, 20, 200, 660V FS

__2.0a _20.0a _200.0a _5.0a

0.2, 20, 200 mA, 5A FS

__0.2U __2.0U _20.0U

0.2, 2, 20V FS.

0 4-1/2 digits (±20,000) 1 Remote display (±99,999) 2 4-1/2 digits, counts by 10 (±20,000) 3 3-1/2 digits (±2,000)

0 Noise minimized for 60 Hz 1 Noise minimized for 50 Hz

0 Scale and offset method 1 Coordinates of 2 points method 2 Reading coordinates of 2 points method

00_00

Control inputs 1 & 2:

True = logic 1 (0V or

tied to digital ground)

False = logic 0 (5V or

open)

0 1 = Reset, 2 = Meter Hold 1 1 = Function Reset, 2 = Peak or Valley 2 1 = Hold, 2 = Peak or Valley Display 3 1 = Hold, 2 = Tare 4 1 = Peak or Valley Display, 2 = Tare 5 1 = Tare, 2 = Reset 6 1 = 1, 2 = 1, decimal point = XXXXX

1 = 0, 2 = 1, decimal point = XXXX

.X

1 = 1, 2 = 0, decimal point = XXX.XX 1 = 0, 2 = 0, decimal point = XX

.XXX

7 1 = 1, 2 = 1, decimal point = XXXX.X

1 = 0, 2 = 1, decimal point = XXX 1 = 1, 2 = 0, decimal point = XX 1 = 0, 2 = 0, decimal point = X

.XX

.XXX

.XXX.X

8 1 = Function Reset, 2 = Display Blank 9 1 = Hold, 2 = Display Blank A 1 = Peak or Valley, 2 = Display Blank B 1 = Tare, 2 = Display Blank C 1 = Valley Display, 2 = Peak Display D 1 = Tare, 2 = Reset Tare to Zero

Both inputs 1 and 2 set to logic 1 for selec-

tions 2, 4, A, C = Function Reset

Both inputs 1 and 2 set to logic 1 for selec-

tions 0, 1, 3, 5, 8, 9, B, D = Meter Reset

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Press Menu Select Key

Press Digit Select Key

Press Value Select Key

ConFG

Meter Configuration

FiLtr

Filtering

000 _0

Operation as a rate of change meter.

Extended meter only.

_0 _ _0

Operation of front

panel PEAK button

and rear connector for

Peak or Valley Display

000 _ 0

Auto-tare

000 _ 0

Nonlinear input scaling

Extended meter only.

00000

Alarm filtering

0 Not rate of change 1 Rate x 0.1 2 Rate x 1 3 Rate x 10 4 Rate x 100 5 Rate x 1000 6 Rate x 10000

0 Peak Display. Also selects “Peak” in

“Peak or Valley” at connector above.

1 Valley Display. Also selects “Valley” in

“Peak or Valley” at connector above.

2 Peak (1st push), Valley (2nd push) 3 Front panel Tare

0 Meter comes up in normal run mode. 1 Meter comes up in auto-tare mode

0 Linear input 1 Custom curve linearization

0 Unfiltered output 1 Filtered output

dEc.Pt

Dec. point selection

00000

Peak & Valley filtering

00000

Display filtering

00000 Adaptive filter

threshold

00000

Input signal filtering.

Can be applied to display, setpoint, analog output, data output.

d.dddd

Decimal point flashes.

0 Unfiltered Peak & Valley 1 Filtered Peak & Valley

0 Display batch average every 16 readings 1 Display filtered signal

0 Low adaptive filter threshold level 1 High adaptive filter threshold level

0 Autofilter 1 Batch average, 16 readings 2 Moving average, 0.08 sec. 3 Moving average, 0.15 sec. 4 Moving average, 0.3 sec. 5 Moving average, 0.6 sec. 6 Moving average, 1.2 sec. 7 Moving average, 2.4 sec. 8 Moving average, 4.8 sec. 9 Moving average, 9.6 sec. A Unfiltered

d.dddd dd.ddd ddd.dd dddd.d ddddd.

.ddddd Press to shift the decimal point.

15

Press Menu Select Key

Press Digit Select Key

Press Value Select Key

Scaling method “Scale and Offset” if selected under SEtuP

SCALE

Scale factor

OFFst

Offset value

0.0000 0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Select decimal point location when decimal point is flashing.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point

location is selected by dEC.Pt.

Scaling method “Coordinates of 2 points” if selected under SEtuP

Lo In.

Low signal input.

Lo rd

Desired reading at

Lo In.

Hi In.

High signal input.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set by input range chosen.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt. Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set by input range chosen.

Hi rd.

Desired reading at

Hi In.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt.

Scaling method “Reading coordinates of 2 points” if selected under SEtuP

Lo In.

Low signal input.

Hi In.

High signal input.

Lo rd

Desired reading at

Lo In.

_0.021

Apply a low reference signal to the meter.

_20.094

Apply a high reference

signal to the meter.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

_0.021

Press

to store the low signal input in the

meter.

_0.021

Press to store the high signal input in the

meter.

0.0000

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt.

Hi rd.

Desired reading at

Hi In.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

6.7500

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt.

16

Option board dependent menu items

ALSEt. ALS34 dEU1H dEU2H dEU1b dEU2b dEU3H DEU4H DEU3b DEU4b

Menu items related to alarm setup These will only appear if a relay board is detected. If so, please see Section16.

AnSEt. An Lo. An Hi..

Menu items related to analog output setup. These will only appear if an analog output

board is detected. If so, see Section 17.

SEr 1. SEr 2. SEr 3. SEr 4.

Menu items related to serial communications. These will only appear if an RS232, RS485

or USB I/O board is detected. If so, see Section 18.

Gain correction

-Gain .

Gain correction for negative signals. Keep at 00.000% to make positive and negative

gains equal.

Menu lockout items

Loc 1. Loc 2. Loc 3.

Menu items used to enable or lock out (hide) other menu items. Loc menu items may in turn

be locked out by a hardware jumper. Please see Section 9.

* Scaling method 2, “Reading Coordinates of 2 Points Scaling Method,” will appear before all

other Menu items, including _InPut. Decimal point is set by dEC.Pt.

0.0000 0.0000 0.0000

0.0000 0.0000

Gain correction from -29.999% to +29.9999% of positive gain

for negative inputs.

Select -2 thru +2 for flashing

most significant digit. Select

0 thru 9 for other flashing

digits.

17

12. LOAD CELL & MICROVOLT INPUT

The Load Cell and Microvolt meters utilize the load cell signal conditioner board, which offers sensitivity to ±20 mV full scale and 4 or 6-wire load cell connection. This board needs to be configured via jumpers for the desired voltage range. All signal ranges are factory calibrated with calibration factors stored in EEPROM. The meter software recognizes the board and will bring up the appropriate menu items for it; however, it does not recognize the jumper settings. Please see further manual sections for setup of the following features: relay output (16), analog output (17), communications (18), and transducer excitation output (19).

RANGE SELECTION VIA JUMPERS

Ranges & Display with Scale Factor = 1

Input Jumpers

±20 mV

±50 mV ±100 mV ±250 mV ±500 mV

Notes 1. See Section 19 to select 10V excitation.

2. Jumpers are 2.5 mm (0.1 in).

SCALE & OFFSET SETUP For DC microvolt meters, a scale factor of 1 and an offset of 0 are used for direct readings in

microvolts or millivolts. Decimal point selection does not affect the displayed digits. For example, 20 mV can be displayed as 20.000 mV or 20000 µV. The decimal point is set separately.

For load cell applications, scaling is set up from the front panel using the meter allows three scaling methods to be selected: 1). Manual scale and offset, 2) Coordinates of 2 points, and 3) Reading coordinates of 2 points. Please see the Glossary for an explanation

of each method.

e a b c d

Full scale display

±20000 ±50000 ±10000 ±25000 ±50000

and keys. The

18

KEYSTROKES FOR SETUP

If the MENU

key does not work, see Section 9 “Enabling & Locking Out Menu Items.”

Press Menu Select Key

_InPut

Selection of signal input type & range

SEtuP

Meter Setup

Press Digit Select Key

_Strn

Strain or ratiometric

_dC U U

DC millivolts

00_00

Display type

00 _00

Power line frequency

00_ 00

Scaling method

00_00

Rear connector control inputs 1 & 2.

True = logic 1 (0V or

tied to digital ground)

False = logic 0 (5V or

open)

Press Value Select Key

_20.0____50.0_ _100.0 _250.0 _500.0

20, 50, 100, 250, 500 mV FS voltage

_20.0____50.0_ _100.0 _250.0 _500.0

20, 50, 100, 250, 500 mV FS voltage

0 4-1/2 digit meter, counts by 1 1 5-digit remote display (±99,999) 2 4-1/2 digit meter, counts by 10 3 3-1/2 digit meter

0 Noise minimized for 60 Hz 1 Noise minimized for 50 Hz

0 Scale and offset method 1 Coordinates of 2 points method 2 Reading coordinates of 2 points method

0 1 = Reset, 2 = Meter Hold 1 1 = Function Reset 2 = Pk or Valley Disp. 2 1 = Meter Hold 2 = Pk or Valley Disp. 3 1 = Meter Hold 2 = Tare 4 1 = Peak or Valley 2 = Tare 5 1 = Tare 2 = Reset 6 1 = 0, 2 = 0, decimal point 1= XXXXX

1 = 1, 2 = 0, decimal point 1 = XXXX.X 1 = 0, 2 = 1, decimal point 1 = XXX

.XX

1 = 1, 2 = 1, decimal point 1 = XX.XXX

7 1 = 0, 2 = 0, decimal point 2 = XXXX.X

1 = 1, 2 = 0, decimal point 2 = XXX 1 = 0, 2 = 1, decimal point 2 = XX

.XX

.XXX

1 = 1, 2 = 1, decimal point 2 = X.XXX.X

8 1 = Function Reset 2 = Display Blank 9 1 = Hold 2 = Display Blank A 1 = Peak or Valley 2 = Display Blank B 1 = Tare 2 = Display Blank C 1 = Valley Display 2 = Peak Display D 1 = Tare 2 = Tare Reset

Both control inputs 1 & 1 set to 1 for selec-

tions 2, 4, A, C = Function Reset.

Both control inputs 1 & 2 set to 1 for selec-

tions 0, 1, 3, 5, 8, 9, B, D = Meter Reset.

19

Press Menu Select Key

Press Digit Select Key

Press Value Select Key

ConFG

Meter Configuration

FiLtr

Filtering

000_0

Operation as a rate of change meter.

Extended meter only.

000_0

Operation of front

panel PEAK button

and rear connector for

Peak or Valley Display

000_0

Auto-tare

000_ 0

Nonlinear input scaling Extended meter only.

00000

Alarm filtering

0 Not rate of change 1 Rate x 0.1 2 Rate x 1 3 Rate x 10 4 Rate x 100 5 Rate x 1000 6 Rate x 10000

0 Peak Display. Also selects “Peak” in

“Peak or Valley” at connector above.

1 Valley Display. Also selects “Valley” in

“Peak or Valley” at connector above.

2 Peak (1st push), Valley (2nd push) 3 Front panel Tare

0 Meter comes up in normal run mode. 1 Meter comes up in auto-tare mode

0 Linear input 1 Custom curve linearization

0 Unfiltered output 1 Filtered output

dEc.Pt

Dec. point selection

00000

Peak & Valley filtering

00000

Display filtering

00000 Adaptive filter

threshold

00000

Input signal filtering.

Can be applied to display, setpoint, analog output, data output.

d.dddd

Decimal point flashes.

0 Unfiltered Peak & Valley 1 Filtered Peak & Valley

0 Display batch average every 16 readings 1 Display filtered signal

0 Low adaptive filter threshold level 1 High adaptive filter threshold level

0 Autofilter 1 Batch average, 16 readings 2 Moving average, 0.08 sec. 3 Moving average, 0.15 sec. 4 Moving average, 0.3 sec. 5 Moving average, 0.6 sec. 6 Moving average, 1.2 sec. 7 Moving average, 2.4 sec. 8 Moving average, 4.8 sec. 9 Moving average, 9.6 sec. A Unfiltered

d.dddd dd.ddd ddd.dd dddd.d ddddd.

.ddddd

20

Press Menu Select Key

Press Digit Select Key

Press Value Select Key

Scaling method “Scale and Offset” if selected under SEtuP

SCALE

Scale factor

OFFst

Offset value

0.0000 0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Select decimal point location when decimal point is flashing.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point

location is selected by dEC.Pt.

Scaling method “Coordinates of 2 points” if selected under SEtuP

Lo In.

Low signal input.

Lo rd

Desired reading at

Lo In.

Hi In.

High signal input.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set by input range chosen.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt. Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set by input range chosen.

Hi rd.

Desired reading at

Hi In.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt.

Scaling method “Reading coordinates of 2 points” if selected under SEtuP

Lo In.

Low signal input.

Hi In.

High signal input.

Lo rd

Desired reading at

Lo In.

_0.021

Apply a low reference signal to the meter.

_20.094

Apply a high reference

signal to the meter.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

_0.021

Press

to store the low signal input in the

meter.

_20.094

Press to store the high signal input in the

meter.

0.0000

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt.

Hi rd.

Desired reading at

Hi In.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

6.7500

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt.

21

Option board dependent menu items

ALSEt. ALS34 dEU1H dEU2H dEU1b dEU2b dEU3H DEU4H DEU3b DEU4b

Menu items related to alarm setup These will only appear if a relay board is detected. If so, please see Section16.

AnSEt. An Lo. An Hi..

Menu items related to analog output setup. These will only appear if an analog output

board is detected. If so, see Section 17.

SEr 1. SEr 2. SEr 3. SEr 4. _Addr

Menu items related to serial communications. These will only appear if an RS232 or

RS485 I/O board is detected. If so, see Section 18.

Gain correction

-Gain .

Gain correction for negative signals. Keep at 00.000% to make positive and negative

gains equal.

Menu lockout items

Loc 1. Loc 2. Loc 3.

Menu items used to enable or lock out (hide) other menu items. Loc menu items may in turn

be locked out by a hardware jumper. Please see Section 9.

0.0000 0.0000 0.0000

0.0000 0.0000

Gain correction from -29.999% to +29.9999% of positive gain

for negative inputs.

Select -2 thru +2 for flashing

most significant digit. Select

0 thru 9 for other flashing

digits.

22

13. AC TRUE RMS VOLTS & AMPS INPUT

AC voltage or current measurement utilizes the True RMS signal conditioner board which uses precision circuitry to compute the root-mean-square of complex waveforms from 10 Hz to 10 kHz. Accurate measurements are obtained with spikes up to 3 times the maximum of each range. The input can be AC coupled to read only the AC component, such as ripple on a power supply, or DC coupled to read AC plus DC. The board needs to be configured via jumpers for the desired voltage or current range, and for AC or DC coupling. All signal ranges are factory calibrated with calibration factors stored in EEPROM. The meter software recognizes the board and will bring up the appropriate menu items for it; however, it does not recognize the jumper settings. These need to be set manually. Please see further manual sections for setup of the following features: relay output (16), analog output (17), and communications (18).

Voltage Ranges

Full Scale Input Counts Jumpers

200 mV 2V 20V 200V 300V (UL) 600V (not UL)

Current Ranges

Full Scale Input Counts Jumpers

2 mA 20 mA 200 mA 5A

AC or DC Coupling

Coupling Type Jumpers

DC coupling for AC + DC AC coupling for AC only

METER SCALING

20000 20000 20000 20000

3000 6000

20000 20000 20000

5000

j

c, g, h

c, i

c, k c, m c, m

l, k b, m a, m

c, d, e, m

f

none

RANGE SELECTION VIA JUMPERS

1. Use 2.5 mm (0.1") jumpers.

2. Store spare jumpers on unused jumper post.

Refer to the above tables for the full scale counts (or displayed digits) produced by the available full scale input ranges with a scale factor of 1 and an offset of 0. The decimal point can be set for direct readout in (milli)volts or (milli)amperes. Decimal point selection does not affect the counts. For example, a 20V input may be displayed as 20.000V or 20000 mV.

23

The 5A range, designed for use with a 5A current transformer (CT), is scaled to produce 5000 counts with a scale factor of 1 and an offset of 0. Use with a specific CT will require the scale factor to be set. For example, for an 800A input, 5A output CT, set a scale factor of 1.6. This is the desired 8000 count display at 5A divided by the default 5000 count display at 5A. Then set the decimal point to display to 800.0 at 5A.

All scaling methods applicable to DC, process, strain and load cell meters are available with

AC RMS meters.

INTERNAL SHIELD

To reduce noise pickup inside the meter or transmitter, the RMS board is fitted with a flexible plug-on shield. If necessary, This shield may be removed for jumper setting, but must be reinstalled before closing the instrument.

SIGNAL SHIELDING

Signal Source

Sig High Sig Low

Shield around twisted pair

Earth Ground

RMS

Board

Shielding for noise reduction

AC RMS measurements are susceptible to signal noise. This is especially true when the instrument has a wide bandwidth. To minimize noise pickup, the input signal wiring should utilize a shielded twisted pair, and the shield should be connected to signal low at the meter, as illustrated. If signal low is close to earth ground, such as within 2V, signal low can further be connected to earth ground at the meter, as illustrated.

24

KEYSTROKES FOR SETUP If the MENU

key does not work, see Section 9 “Enabling & Locking Out Menu Items.”

Press Menu Select Key

_InPut

Selection of signal input type & range

SEtuP

Meter Setup

Press Digit Select Key

_AC U

Strain or ratiometric

_AC A U

DC millivolts

00_00

Display selection with scale factor of 1

00 _00

Power line frequency

00_ 00

Scaling method

00_00

Rear connector inputs 1 & 2

True = logic 1 (0V or

tied to digital ground)

False = logic 0 (5V or

open)

Press Value Select Key

__0.2U __2.0U _20.0U 200.0U 600.0U

0.2, 2, 20, 200, 660V FS

__2.0a _20.0a _200.0a _5.0A

2, 20, 200 mA, 5A FS

0 4-1/2 digits (±20,000) 1 Remote display (±99,999) 2 4-1/2 digits, counts by 10 (±20,000) 3 3-1/2 digits (±2,000)

0 Noise minimized for 60 Hz 1 Noise minimized for 50 Hz

0 Scale and offset method 1 Coordinates of 2 points method 2 Reading coordinates of 2 points method

0 1 = Reset, 2 = Meter Hold 1 1 = Function Reset 2 = Pk or Valley Disp. 2 1 = Meter Hold 2 = Pk or Valley Disp. 3 1 = Meter Hold 2 = Tare 4 1 = Peak or Valley 2 = Tare 5 1 = Tare 2 = Reset 6 1 = 0, 2 = 0, decimal point 1= XXXXX

1 = 1, 2 = 0, decimal point 1 = XXXX.X 1 = 0, 2 = 1, decimal point 1 = XXX

.XX

1 = 1, 2 = 1, decimal point 1 = XX.XXX

7 1 = 0, 2 = 0, decimal point 2 = XXXX.X

1 = 1, 2 = 0, decimal point 2 = XXX 1 = 0, 2 = 1, decimal point 2 = XX

.XX

.XXX

1 = 1, 2 = 1, decimal point 2 = X.XXX.X

8 1 = Function Reset 2 = Display Blank 9 1 = Hold 2 = Display Blank A 1 = Peak or Valley 2 = Display Blank B 1 = Tare 2 = Display Blank C 1 = Valley Display 2 = Peak Display D 1 = Tare 2 = Tare Reset

Both control inputs 1 & 2 set to 1 for selec-

tions 2, 4, A, C = Function Reset.

Both control inputs 1 & 2 set to 1 for selec-

tions 0, 1, 3, 5, 8, 9, B, D = Meter Reset.

25

Press Menu Select Key

Press Digit Select Key

Press Value Select Key

ConFG

Meter Configuration

FiLtr

Filtering

000_0

Operation as a rate of change meter. Extended meter only.

00 _ _0

Operation of front

panel PEAK button

and rear connector for

Peak or Valley Display

000 _0

Auto-tare

000_ 0

Nonlinear input scaling Extended meter only.

00000

Alarm filtering

0 Not rate of change 1 Rate x 0.1 2 Rate x 1 3 Rate x 10 4 Rate x 100 5 Rate x 1000 6 Rate x 10000

0 Peak Display. Also selects “Peak” in

“Peak or Valley” at connector above.

1 Valley Display. Also selects “Valley” in

“Peak or Valley” at connector above.

2 Peak (1st push), Valley (2nd push) 3 Front panel Tare

0 Meter comes up in normal run mode. 1 Meter comes up in auto-tare mode

0 Linear input 1 Custom curve linearization

0 Unfiltered output 1 Filtered output

dEc.Pt

Dec. point selection

00000

Peak & Valley filtering

00000

Display filtering

00000 Adaptive filter

threshold

00000

Input signal filtering.

Can be applied to display, setpoint, analog output, data output.

d.dddd

Decimal point flashes.

0 Unfiltered Peak & Valley 1 Filtered Peak & Valley

0 Display batch average every readings 1 Display filtered signal

0 Low adaptive filter threshold level 1 High adaptive filter threshold level

0 Autofilter 1 Batch average, 16 readings 2 Moving average, 0.08 sec. 3 Moving average, 0.15 sec. 4 Moving average, 0.3 sec. 5 Moving average, 0.6 sec. 6 Moving average, 1.2 sec. 7 Moving average, 2.4 sec. 8 Moving average, 4.8 sec. 9 Moving average, 9.6 sec. A Unfiltered

d.dddd dd.ddd ddd.dd dddd.d ddddd. .ddddd

26

Press Menu Select Key

Press Digit Select Key

Press Value Select Key

Scaling method “Scale and Offset” if selected under SEtuP

SCALE

Scale factor

OFFst

Offset value

0.0000 0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Select decimal point location when decimal point is flashing.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point

location is selected by dEC.Pt.

Scaling method “Coordinates of 2 points” if selected under SEtuP

Lo In.

Low signal input.

Lo rd

Desired reading at

Lo In.

Hi In.

High signal input.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set by input range chosen.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt. Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set by input range chosen.

Hi rd.

Desired reading at

Hi In.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt.

Scaling method “Reading coordinates of 2 points” if selected under SEtuP

Lo In.

Low signal input.

Hi In.

High signal input.

Lo rd

Desired reading at

Lo In.

_0.021

Apply a low reference signal to the meter.

_20.094

Apply a high reference

signal to the meter.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

_0.021

Press

to store the low signal input in the

meter.

_0.021

Press to store the high signal input in the

meter.

0.0000

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt.

Hi rd.

Desired reading at

Hi In.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

6.7500

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Decimal point is set

by dEC.Pt.

27

Option board dependent menu items

ALSEt. ALS34 dEU1H dEU2H dEU1b dEU2b dEU3H DEU4H DEU3b DEU4b

Menu items related to alarm setup These will only appear if a relay board is detected. If so, please see Section16.

AnSEt. An Lo. An Hi..

Menu items related to analog output setup. These will only appear if an analog output

board is detected. If so, see Section 17.

SEr 1. SEr 2. SEr 3. SEr 4. _Addr

Menu items related to serial communications. These will only appear if an RS232 or

RS485 I/O board is detected. If so, see Section 18.

Menu lockout items

Loc 1. Loc 2. Loc 3.

Menu items used to enable or lock out (hide) other menu items. Loc menu items may in turn

be locked out by a hardware jumper. Please see Section 9.

* Scaling method 2, “Reading Coordinates of 2 Points Scaling Method,” will appear before all

other Menu items, including _InPut. Decimal point is set by dEC.Pt.

28

14. THERMOCOUPLE INPUT

The thermocouple signal conditioner board used for temperature measurement can be configured via jumpers for 7 thermocouple types, each in a single range: J, K, T, E, N, S, R. The meter software recognizes the board and will bring up the appropriate menu items for it; however, it does not recognize the jumper settings. Display in °C or °F and resolution of 1°,

0.1° or 0.01° are user programmable. High resolution should only be used for relative readings, not absolute readings. Although available, 0.01° resolution is not recommended for thermocouples. Offset adjustment is available for thermocouples and is normally set to 0000.0. If °C is selected, entering an offset of 0273.2 will change the display to Kelvin. If °F is selected, entering an offset of 0459.7 will change the display to Rankin.

The addition of a relay output board turns the thermocouple meter from a temperature indicator into an on/off temperature controller. Please see further manual sections for setup of the following features: relay output (Section 16), analog output (17), and communications (18).

SIGNAL CONDITIONER BOARD SETUP VIA JUMPERS

Type E4 Jumper

J, K, E, N T, R, S

Open Indication E3 Jumper

Upscale Downscale

1. Use 2.5 mm (0.1") jumpers.

2. Store spare jumpers on an

unused jumper post.

none

j

h

i

29

KEYSTROKES FOR SETUP If the MENU

key does not work, see Section 9 “Enabling & Locking Out Menu Items.”

Press Menu Select Key

_InPut

Selection of signal input type & range

SEtuP

Meter Setup

Press Digit Select Key

__tC_

Thermocouple

00_00

Display selection.

00 _00

Power line frequency

00_ 00

Scaling method

Press Value Select Key

--.J °F_ _.J °C_ Type J, °F or °C ...K °F_ _K-°C_ Type K, °F or °C ...n °F_ _-n °C_ Type N, °F or °C _.E °F_ ...Ek°C- Type E, °F or °C __t °F._ _.t °C_ Type T, °F or °C _.S °F_ _.S °C_ Type S, °F or °C _.r °F_ _.r °C._ Type R, °F or °C

0 0.1 degree resolution 1 Remote display (±99,999) 2 0.01 degree resolution 3 1 degree resolution

0 Noise minimized for 60 Hz 1 Noise minimized for 50 Hz

0 Offset only for thermocouple input.

00_00

ontrol inputs 1 & 2:

True = logic 1 (0V or

tied to digital ground)

False = logic 0 (5V or

open)

0 1 = Reset, 2 = Meter Hold 1 1 = Function Reset, 2 = Peak or Valley 2 1 = Hold, 2 = Peak or Valley Display 3 1 = Hold, 2 = Tare 4 1 = Peak or Valley Display, 2 = Tare 5 1 = Tare, 2 = Reset 6 1 = 0, 2 = 0, decimal point 1= XXXXX

1 = 1, 2 = 0, decimal point 1 = XXXX 1 = 0, 2 = 1, decimal point 1 = XXX 1 = 1, 2 = 1, decimal point 1 = XX

.X

.XX

.XXX

7 1 = 0, 2 = 0, decimal point 2 = XXXX.X

1 = 1, 2 = 0, decimal point 2 = XXX 1 = 0, 2 = 1, decimal point 2 = XX 1 = 1, 2 = 1, decimal point 2 = X

.XX

.XXX

.XXX.X

8 1 = Function Reset 2 = Display Blank 9 1 = Hold 2 = Display Blank A 1 = Peak or Valley 2 = Display Blank B 1 = Tare 2 = Display Blank C 1 = Valley Display 2 = Peak Display D 1 = Tare 2 = Tare Reset

Both control inputs 1 & 2 set to 1 for selec-

tions 2, 4, A, C = Function Reset.

Both control inputs 1 & 2 set to 1 for selec-

tions 0, 1, 3, 5, 8, 9, B, D = Meter Reset.

30

Press Menu Select Key

Press Digit Select Key

Press Value Select Key

ConFG

Meter Configuration

FiLtr

Filtering

000_0 0 No used.

00 _ _0

Operation of front

panel PEAK button

and rear connector for

Peak or Valley Display

00000

Alarm filtering

00000

Peak & Valley filtering

00000

Display filtering

00000 Adaptive filter

threshold

00000

Input signal filtering.

Can be applied to display, setpoint, analog output, data output.

0 Peak Display. Also selects “Peak” in

“Peak or Valley” at rear connector.

1 Valley Display. Also selects “Valley” in

“Peak or Valley” at rear connector.

2 Peak (1st push), Valley (2nd push) 3 Front panel Tare

0 Unfiltered output 1 Filtered output

0 Unfiltered Peak & Valley 1 Filtered Peak & Valley

0 Display batch average every 16 readings 1 Display filtered signal

0 Low adaptive filter threshold level 1 High adaptive filter threshold level

0 Autofilter 1 Batch average, 16 readings 2 Moving average, 0.08 sec. 3 Moving average, 0.15 sec. 4 Moving average, 0.3 sec. 5 Moving average, 0.6 sec. 6 Moving average, 1.2 sec. 7 Moving average, 2.4 sec. 8 Moving average, 4.8 sec. 9 Moving average, 9.6 sec. A Unfiltered

OFFst

Offset value

Option board dependent menu items

ALSEt. ALS34 dEU1H dEU2H dEU1b dEU2b dEU3H DEU4H DEU3b DEU4b

Menu items related to alarm setup if a relay board is detected. Please see Section16.

AnSEt. An Lo. An Hi..

Menu items related to analog output if detected. Please see Section 17.

SEr 1. SEr 2. SEr 3. SEr 4.

Menu items related to serial communications if detected. Please see Section 18.

Menu lockout items

Loc 1. Loc 2. Loc 3.

Menu items used to enable or lock out (hide) menu items. Please see Section 9.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Use offset for display in Rankine or Kelvin.

31

15. RTD & RESISTANCE INPUT

RTD and resistance measurement utilizes the same signal conditioner board, which can be configured via jumpers for four RTD types (100Ω platinum with DIN or ANSI alpha, 10Ω copper, 120Ω nickel) or five resistance ranges (from 20.000Ω to 200.00 kΩ). All ranges are factory calibrated with calibration factors stored in EEPROM on the signal conditioner board. The meter software recognizes the board and will bring up the appropriate menu items for it; however, it does not recognize the jumper settings. With RTDs, display in °C or °F and resolution of 1°, 0.1° or 0.01° are user programmable. 0.01° resolution should only be used for relative readings, not absolute readings, and with software selectable digital filtering.

The addition of a relay output board turns the meter from an indicator into an on/off controller. Please see further manual sections for setup of the following features: relay output (Section

16), analog output (17), and communications (18).

SIGNAL CONDITIONER BOARD SETUP VIA JUMPERS

RTD Type or Ohms E1 Jumper

Pt100, Ni120 Cu10, 20 Ω 200 Ω 2000 Ω 20000 Ω 200 kΩ

Connection E2 Jumper

2 or 4 wire 3 wire

1. Use 2.5 mm (0.1") jumpers.

2. Store spare jumpers on an unused jumper post. SCALE & OFFSET SETUP

a b c d e

f

none

g

Scale is normally set to 1.0000. Scale can be used as an RTD correction when actual

resistance is other than nominal, as stated on the RTD calibration sheet. For a Pt100 RTD, divide 100 by the stated resistance at 0°C. For example, for a 99.04 ohm RTD, scale should be set to 100 / 99.04 = 1.0097.

Offset is normally set to 0000.0. If °C is selected for an RTD, entering an offset of 0273.2 will

change the display to Kelvin. If °F is selected, entering 0459.7 will change the display to Rankin.

32

RTD & RESISTANCE CONNECTION

With the appropriate jumper settings, RTD and resistance measurements allow 2, 3 or 4wire RTD hookup to the J5 connector, as illustrated. The meter applies an excitation current, which it monitors to make ratiometric corrections for excitation supply variations.

In 2-wire hookup, the meter senses the

voltage drop across the load and both lead wires. The effect of the lead wires can be measured and subtracted by shorting out the load during meter setup. The short should be as close as possible to the load. Ambient temperature changes will still cause some error in the readings -- the higher the lead resistance, the greater the error.

Under the .Short. menu selection, the load is

shorted out, the proportional to lead resistance is displayed, and that value is automatically stored in the meter. After this step, the RTD type or resistance range need to be selected.

key is pushed, a value

In 3-wire hookup, the meter automatically compensates for lead resistance by measuring the

voltage drop in one current-carrying lead and assuming that the voltage drop in the other current-carrying lead is the same.

In 4-wire hookup, no compensation for lead resistance is necessary. The step of shorting out

the RTD during meter setup is not necessary with either 3 or 4-wire hookup.

33

KEYSTROKES FOR SETUP If the MENU

key does not work, see Section 9 “Enabling & Locking Out Menu Items.”

Press Menu Select Key

_InPut

Selection of signal input type & range

Press Digit Select Key

_-rtd_

RTD

OHnnS

Ohmmeter

Press Value Select Key

.. d °F- Pt100 RTD, DIN alpha .00385, °F .. d °C. Pt100 RTD, DIN alpha .00385, °C .. A °F- Pt100 RTD, ANSI alpha .003902, °F .. A °C- Pt100 RTD, ANSI alpha .003902, °C . ni °F - Ni120 RTD, alpha .00672, °F ..ni °C- Ni120 RTD, alpha .00672, °C .Cu °F- Cu10 RTD, alpha .00427, °F .Cu °C- Cu10 RTD, alpha .00427, °C

.Short. Press to store selection for 2-

wire lead resistance compensation. While holding the two leads at the RTD. Press

press to reset the meter. Short

to store

the displayed value. Then return to _InPut

to make one of the RTD selections above.

.. 20- 0 to 20 ohms .. 200. 0 to 200 ohms ..2000- 0 to 2000 ohms .20000 0 to 20000 ohms

200.00 0 to 200.00 kohm

.Short. 2-wire lead resistance compensation

as for RTD.

SEtuP

Meter Setup

00_00

Display selection with scale factor of 1.

00 _00

Power line frequency

00_ 00

Scaling method

00_00

Control inputs 1 & 2:

True = logic 1 (0V or

tied to digital ground)

False = logic 0 (5V or

open)

0 0.1° RTD or 4-1/2 digits for ohms 1 5-digit remote display (±99,999) 2 0.01° RTD, 4-1/2 digit ohms count by 10 3 1° RTD or 3-1/2 digits for ohms

0 Noise minimized for 60 Hz 1 Noise minimized for 50 Hz

0 Scale and offset method (RTD & ohms) 1 Coordinates of 2 points (ohms) 2 Reading coordinates of 2 points (ohms)

0 1 = Reset, 2 = Meter Hold 1 1 = Function Reset, 2 = Peak or Valley 2 1 = Hold, 2 = Peak or Valley Display 3 1 = Hold, 2 = Tare 4 1 = Peak or Valley Display, 2 = Tare 5 1 = Tare, 2 = Reset

34

Press Menu Select Key

Press Digit Select Key

Press Value Select Key

SEtuP

Meter Setup

(continued)

ConFG

Meter Configuration

00_00

Control inputs 1 & 2

(continued)

6 1 = 0, 2 = 0, decimal point 1= XXXXX

1 = 1, 2 = 0, decimal point 1 = XXXX 1 = 0, 2 = 1, decimal point 1 = XXX 1 = 1, 2 = 1, decimal point 1 = XX

7 1 = 0, 2 = 0, decimal point 2 = XXXX.X

1 = 1, 2 = 0, decimal point 2 = XXX 1 = 0, 2 = 1, decimal point 2 = XX 1 = 1, 2 = 1, decimal point 2 = X

8 1 = Function Reset 2 = Display Blank 9 1 = Hold 2 = Display Blank A 1 = Peak or Valley 2 = Display Blank B 1 = Tare 2 = Display Blank C 1 = Valley Display 2 = Peak Display D 1 = Tare 2 = Tare Reset

Both control inputs 1 & 2 set to 1 for selec-

tions 2, 4, A, C = Function Reset.

Both control inputs 1 & 2 set to 1 for selec-

tions 0, 1, 3, 5, 8, 9, B, D = Meter Reset.

000_0 0 Not used 00 _ _0

Operation of front

panel PEAK button

and rear connector for

Peak or Valley Display

0 Peak Display. Also selects “Peak” in

“Peak or Valley” at connector above.

1 Valley Display. Also selects “Valley” in

“Peak or Valley” at connector above.

2 Peak (1st push), Valley (2nd push) 3 Front panel Tare

.X

.XX

.XXX

.XX

.XXX

.XXX.X

FiLtr

Filtering

00000

Alarm filtering

00000

Peak & Valley filtering

00000

Display filtering

00000 Adaptive filter

threshold

0 Unfiltered output 1 Filtered output

0 Unfiltered Peak & Valley 1 Filtered Peak & Valley

0 Display batch average every 16 readings 1 Display filtered signal

0 Low adaptive filter threshold level 1 High adaptive filter threshold level

35

Press Menu Select Key

Press Digit Select Key

Press Value Select Key

FiLtr

Filtering

(continued)

dEc.Pt

Decimal point

selection

SCALE

Scale factor

OFFst

Offset value

00000

Input signal filtering.

Can be applied to display, setpoint, analog output, data output.

d.dddd

Decimal point flashes if ohms are selected

under _InPut

0.0000 0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0 Autofilter 1 Batch average, 16 readings 2 Moving average, 0.08 sec. 3 Moving average, 0.15 sec. 4 Moving average, 0.3 sec. 5 Moving average, 0.6 sec. 6 Moving average, 1.2 sec. 7 Moving average, 2.4 sec. 8 Moving average, 4.8 sec. 9 Moving average, 9.6 sec. A Unfiltered

d.dddd dd.ddd ddd.dd dddd.d ddddd. .ddddd

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Select decimal point location when decimal point is flashing.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Use offset for display in Rankine or Kelvin. Decimal point location

is selected by dEC.Pt.

Option board dependent menu items

ALSEt. ALS34 dEU1H dEU2H dEU1b dEU2b dEU3H DEU4H DEU3b DEU4b

Menu items related to alarm setup These will only appear if a relay board is detected. If so, please see Section16.

AnSEt. An Lo. An Hi..

Menu items related to analog output setup. These will only appear if an analog output

board is detected. If so, see Section 17.

SEr 1. SEr 2. SEr 3. SEr 4. _Addr

Menu items related to serial communications. These will only appear if an RS232 or

RS485 I/O board is detected. If so, see Section 18.

Menu lockout items

Loc 1. Loc 2. Loc 3.

Menu items used to enable or lock out (hide) other menu items. Loc menu items may in turn

be locked out by a hardware jumper. Please see Section 9.

36

16. DUAL OR QUAD RELAY OUTPUT OPTION

An optional relay board may be installed in the meter main board at plug position P2, adjacent to the power supply board. Four board versions are available: 2 or 4 relays, mechanical or solid state. Once installed, the relay board is recognized by the meter software, which will bring up the appropriate menu items. Relay menu items will not be brought up if no relay board is detected. Menu selections for relays 3 and 4 will not be brought up if a dual relay board is detected.

All relay boards offer a choice of operating modes: normally off or on, latched or non-latched, hysteresis band, deviation band, alarm based on the filtered or unfiltered signal, and selectable number of readings in alarm zone to cause an alarm.

KEYSTROKES FOR VIEWING & CHANGING SETPOINTS

The nues to make conversions and performs setpoint control. If the a setpoint is displayed, conversion stops and the setpoint can be changed. After pressing you have 30 seconds, or the meter reverts to the normal display. To view setpoints, menu item Loc1, digit 4, must have been set to 0. To change setpoints, menu item Loc4, digit 6, must have been set to 0.

300.24

Press to display Alarm 1 setpoint.

395.00

Press (Alarms) to display Alarm 2 setpoint.

395.00

Press to display Alarm 3 setpoint.

(Alarms) key can be used to step through and view setpoints while the meter conti-

(Peak) key is pressed while

Press Alarms Key

(Alarms)

_200.00 Current setpoint 1 value blinks, and Alarm 1 LED indicator lights. Press to select a digit, which will blink.

_395.00 Current setpoint 2 value blinks, and Alarm 2 LED indicator lights. Press to select a digit, which will blink.

_395.00 Current setpoint 3 value blinks, and Alarm 3 LED indicator lights. Press to select a digit, which will blink.

Press Digit Select Key

Press Value Select Key

_295.00 To change setpoint 1 value, press blinking digits.

_305.00 To change setpoint 2 value, press blinking digits.

_305.00 To change setpoint 3 value, press blinking digits.

to change selected

,

395.00

Press (Alarms) to display Alarm 4 setpoint.

300.24 Press (Alarms) again. Meter will reset and display current reading.

_395.00 Current setpoint 4 value blinks, and Alarm 4 LED indicator lights. Press to select a digit, which will blink.

37

_305.00 To change setpoint 4 value, press blinking digits.

to change selected

KEYSTROKES FOR SETPOINT SETUP

If the MENU key does not work, see Section 9 “Enabling & Locking Out Menu Items.”

Press Menu Select Key

ALSEt

Alarm Setup for relays 1 & 2 if detected.

Press

ALSEt is displayed.

until

Press Digit Select Key

00000

Relay state when alarm is active.

00000

Alarm latching or non-

latching (auto reset).

00000

Alarm operates at and above setpoint (active high) or at and below setpoint (active low).

Press Value Select Key

0 Relay 1 on Relay 2 on 1 Relay 1 off Relay 2 on 2 Relay 1 on Relay 2 off 3 Relay 1 off Relay 2 off

0 Alarm 1 auto reset Alarm 2 auto reset 1 Alarm 1 latching Alarm 2 auto reset 2 Alarm 1 auto reset Alarm 2 latching 3 Alarm 1 latching Alarm 2 latching

0 AL1 active high AL2 active high 1 AL1 active low AL2 active high 2 AL1 disabled AL2 active high 3 AL1 active high AL2 active low 4 AL1 active low AL2 active low 5 AL1 disabled AL2 active low 6 AL1 active high AL2 disabled 7 AL1 active low AL2 disabled 8 AL1 disabled AL2 disabled

ALS34

Alarm Setup for relays 3 & 4 if detected.

00000

Hysteresis mode or band deviation mode

00000

Number of consecutive readings in alarm zone to cause an alarm.

00000

Relay state when alarm is active.

00000

Alarm latching or non-

latching (auto reset).

0 AL1 band deviation AL2 band deviation 1 AL1 hysteresis AL2 band deviation 2 AL1 band deviation AL2 hysteresis 3 AL1 hysteresis AL2 hysteresis 4 No deviation or hysteresis in menu.

0 After 1 reading 4 After 16 readings 1 After 2 readings 5 After 32 readings 2 After 4 readings 6 After 64 readings 3 After 8 readings 7 After 128 reading

0 Relay 3 on Relay 4 on 1 Relay 3 off Relay 4 on 2 Relay 3 on Relay 4 off 3 Relay 3 off Relay 4 off

0 Alarm 3 auto reset Alarm 4 auto reset 1 Alarm 3 latching Alarm 4 auto reset 2 Alarm 3 auto reset Alarm 4 latching 3 Alarm 3 latching Alarm 4 latching

38

Press Menu Select Key

Press Digit Select Key

Press Value Select Key

ALS34

Alarm Setup for relays 3 & 4 (continued)

dEU1H

Alarm 1 hysteresis

DEU2H

Alarm 2 hysteresis

00000

Alarm operates at and above setpoint (active high) or at and below setpoint (active low).

00000

Hysteresis mode or band deviation mode (see Glossary)

00000

Number of consecutive readings in alarm zone to cause an alarm.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0 AL3 active high AL4 active high 1 AL3 active low AL4 active high 2 AL3 disabled AL4 active high 3 AL3 active high AL4 active low 4 AL3 active low AL4 active low 5 AL3 disabled AL4 active low 6 AL3 active high AL4 disabled 7 AL3 active low AL4 disabled 8 AL3 disabled AL4 disabled

0 AL3 band deviation AL4 band deviation 1 AL3 hysteresis AL4 band deviation 2 AL3 band deviation AL4 hysteresis 3 AL3 hysteresis AL4 hysteresis

0 After 1 reading 4 After 16 readings 1 After 2 readings 5 After 32 readings 2 After 4 readings 6 After 64 readings 3 After 8 readings 7 After 128 reading

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Alarms will activate above the setpoint by the value entered and deactivate below the setpoint by the value

entered.

DEU1b

Alarm 1 band deviation

DEU2b

Alarm 2 band deviation

dEU3H

Alarm 3 hysteresis

DEU4H

Alarm 4 hysteresis

DEU3b

Alarm 3 band deviation

DEU4b

Alarm 4 band deviation

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Alarms will activate above and below the setpoint by the value entered and will deactivate in the middle of

the band.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Alarms will activate above the setpoint by the value entered and deactivate below the setpoint by the value

entered.

Select -9 thru 9 for flashing first digit, 0 thru 9

for other flashing digits. Alarms will activate above and below the setpoint by the value entered and will deactivate in the middle of

the band.

39

17. ANALOG OUTPUT OPTION

An optional analog board may be installed in the meter at rear panel jack position J4, adjacent to the signal conditioner board. Once installed, this board is recognized by the meter, which will bring up the appropriate menu items for it. These will not be brought up if an analog output board is not installed.

The analog output can be a 0-20 mA, 4-20 mA or 0-10V unipolar signal with respect to isolated ground, or a bipolar -10V to +10V voltage signal with respect to a reference return line. Unipolar or bipolar operation is selected by a jumper. A unipolar current or voltage output is selected at the connector. Unipolar 4-20 mA or 0-20 mA current is selected in software.

Unipolar current of voltage: Jumper a Bipolar -10 to +10 voltage: Jumper b

The low analog output (0 mA, 4 mA, 0V, or -10V) may be set to correspond to any low

displayed reading An Lo. The high analog output (20 mA, 0V or 10V) may be set to correspond to any high displayed reading An Hi. The meter will then apply a straight line fit between

these two end points to provide an analog output scaled to the meter reading.

KEYSTROKES FOR SETUP

If the MENU

Press Menu Select Key

AnSEt

Analog Output Setup. Press is displayed (requires analog output board).

An Lo

Low displayed value for 0 mA, 4 mA, 0V, or

-10V output

An Hi.

High displayed value for 20 mA or 10V out-

put

until AnSEt

key does not work, see Section 9 “Enabling & Locking Out Menu Items.”

___00

Analog output signal selection.

___00 Analog output filtering.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

0.0000 0.0000 0.0000

0.0000 0.0000

Select digit to flash.

Press Digit Select Key

40

Press Value Select Key

0 0-20 mA current output 1 0-10V voltage output 2 4-20 mA current output 3 -10 to +10V voltage output

0 Analog output unfiltered 1 Analog output filtered

Select -9 thru 9 for flashing first digit, 0 thru 9 for other flashing

digits. Decimal point location is

fixed by dEC.Pt selection. Select -9 thru 9 for flashing first

digit, 0 thru 9 for other flashing

digits. Decimal point location is

fixed by dEC.Pt selection.

18. SERIAL COMMUNICATION OPTIONS

A variety of optional serial communications boards may be connected to the meter main board at plug position P13 (middle position). These include RS-232, RS-485, RS-485 Modbus, USB, and USB to RS-485.

Both boards feature dual connectors, which are wired in parallel to allow daisy chaining of addressable meters. Three serial communication protocols are : Custom ASCII, Modbus RTU, and Modbus ASCII. Multiple meters on the same serial communication line requires RS485 or RS485-Modbus boards. The USB to RS485 converter replaces the RS485 board in one of the meters to provide a direct USB connection to a PC or PLC without an external converter.

LOADING USB AND USB/RS-485 DRIVERS Using a USB cable with Type A and Type B connectors, connect the meter to the computer.

The computer will display “Found new Hardware” followed by “Welcome to the ‘Found new Hardware Wizard’ ”. Follow the instructions for installation from a CD

When the installation is complete, use the Device Manager to determine the Com port

number. To get to Device Manger, go to Control Panel, click on System, click on Hardware tab and then click on Device Manager. Go down the device list and click on Ports (COM & LPT) and USB serial port (com #). Note the com port # for use with communications to your IPM meter, and exit Control Panel

If you need to change the Com port, right-click on USB serial port (com #), then click on

Properties, Port settings and Advanced. Change the port to the desired number and click OK, then exit Control Panel.

BOARD SETUP VIA JUMPERS USB Board No jumpers required RS232 Board

g - Normal operation. h - Slave display operation to RS232 from another meter. J - Pull-up resistor on RTS line.

RS-232

RJ11

g

h j

Note: The board is shipped with jumpers g and j installed.

RS232 Board Rev J

RJ11

e - Normal operation. f - Slave display operation to RS232 from another meter.

g - Pull-up resistor on RTS line. Note: The board is shipped with jumpers e and g installed

RS-232

g

f

e

232

d

RS485 and RS485-Modbus Boards Full Duplex Operation

c

e

f

a

b

RJ45

J

b & e - Bias jumpers should be installed on 1 board. a & d - Installed on last meter in long cable run.

41

RJ45

Modbus

Half Duplex Operation

b & e - bias jumpers installed on 1 board. c & f - installed for half duplex operation. a - installed on last meter in line with long cable runs.

Note: The boards are shipped with no jumpers installed.

RS-485

a b e

c

d

f

RJ11

RS485 Rev J and USB/RS485 Boards Full Duplex Operation

b & d - Installed on last meter in long cable run.

Half Duplex Operation

a & c - Installed for half duplex operation. d - Installed on last meter in line with long cable runs.

Note: The boards are shipped with no jumpers installed.

KEYSTROKES FOR SETUP

If the MENU

key does not work, see Section 9 “Enabling & Locking Out Menu Items.”

Press Menu Select Key

Press Digit Select Key

a bc d

RJ11

RS-485

USB/RS-485

a bc d

J

USB

RJ11

232

Press Value Select Key

.SEr 1.

Fixed Parameters: No parity 8 data bits 1 stop bit

__000

Output filtering

__000U

Baud rate

__000U

Output update rate

0 Send unfiltered signal 1 Send filtered signal

0 300 baud 1 600 baud 2 1200 baud 3 2400 baud 4 4800 baud 5 9600 baud 6 19200 baud

60 Hz 50 Hz

0 Line frequency Line frequency 1 0.28 sec 0.34 sec 2 0.57 sec 0.68 sec 3 1.1 sec 1.4 sec 4 2.3 sec 2.7 sec 5 4.5 sec 5.4 sec 6 9.1 sec 10.9 sec 7 18.1 sec 21.8 sec 8 36.6 sec 43.5 sec 9 72.5 sec 97 sec

42

Press Menu Select Key

Press Digit Select Key

Press Value Select Key

.SEr 2.

Serial Setup 2

.SEr 3.

Serial Setup 3

_0000U

Line feed

_0000U

Alarm data with readings

_0000U

Control of data output

_0000U

Meter address with Custom

ASCII protocol

00000U

Half or full duplex

00000U

Special start & stop char.

00000U

RTS mode

00000U

Termination characters

0 No line feed after carriage return 1 Line feed after carriage return

0 No alarm data 1 Alarm data with reading

0 Continuous data output 1 Data output on ASCII command only

Select 1 thru F for addresses 1 thru 15. Select 0. thru F. (with decimal point) for addresses 16 thru 31.

0 Full duplex 1 Half duplex

0 Standard continuous mode 1 Special start & stop characters

0 Normal RTS 1 Single transmission

0 Only at end of all items 1 At end of each item

.SEr 3.

Serial Setup 3

(continued)

SEr 4.

Serial Setup 4.

_Addr

Modbus Address. Appears only if a Modbus protocol is

selected.

00000U

Data sent in continuous mode

__000U

Modbus ASCII gap timeout

__000U

Serial protocol

__000U

Parity

__000 __000 __000

Select digit to flash.

0 Reading 1 Peak 2 Valley 3 Reading + peak 4 Reading + valley 5 Reading + peak + valley

0 1 sec 1 3 sec 2 5 sec 3 10 sec

0 Custom ASCII 1 Modbus RTU 2 Modbus ASCII

0 None, 2 or more stop bits 1 Odd, 1 or more stop bits 2 Even, 1 or more stop bits

__247

Select 0 through 9 for flashing digit. Address range is 1 to 247.

43

19. TEDS INTERFACE

U

pon power up, a TEDS enabled IPM490 or IPM500 meter will display a sequence of "3333", "2222", and "1111" followed by the firmware revision, alerting the user of TEDS capability. Ensure that the proper connections are made from pins 5 and 6 of the TEDS connector to the DB-9 converter PCB before plugging in a TEDS enabled sensor, as described in Section 4. Once the sensor is connected, the meter will display the manufacturer's ID and TEDS template number, followed by an automatic reset. If the sensor contains meter analog output or decimal point settings, the meter will automatically configure these settings.

TEDS MENU SELECTIONS

The following menu selections must be entered before retrieving TEDS information from your TEDS enabled sensor. The meter must be configured for 2-point calibration before the sensor is connected; otherwise analog output settings will not be set up properly.

Press Menu Select Key

SEtuP

Press key until

SEtuP is displayed.

SEr 1.

Press key until

SEr 1 is displayed.

SEr 2.

Press key until SEr 2 is displayed.

SEr 3.

Press

SEr 3 is displayed.

key until

Press Digit Select Key

00000

Press

th

4

digit to flash.

000U

Press to flash.

0000U

Press to flash.

00000U

Press to flash.

to select the

to select digit

Press Value Select Key

00010

Press 2 points scaling method.

150 Set digit 3 to 1 for filtered signal. 150 Set digit 4 to 5 for 9600 baud. 150 Set digit 5 to 0 for 60/s output rate.

0000 Set digit 2 to 0 for no line feed. 0000 Set digit 3 to 0 for no alarm data. 0000 Set digit 4 to 0 for continuous

0001 Set digit 5 to 1 thru F for addresses

00000 Set digit 1 to 0 for full duplex. 00000 Set digit 2 to 0 for standard

00000 Set digit 3 to 0 for normal RTS. 00000 Set digit 4 to 0 for termination cha-

00001 Set digit 5 to 0 for data readings in

to set digit 4 to 1 for coordinates of

output.

1 thru 15 or to 0. thru F. (with deci-

mal point) for addresses 16 thru 31.

continuous output.

racters only at end of all items.

continuous mode.

44

TEDS INTERFACE WIRING

TEDS DATA

TEDS GROUND

ISOLATED GROUND

RTS

RX

TX

Meter

6

6 5

5

5 4

4

4 3

3

3 2

2

2 1

1

Sensor

DATA GROUND

Computer

GROUND RTS TRANSMIT RECEIVE

Notes:

• Do not connect RS-232 pins 1-4 if using a USB connection.

• Do not connect TEDS ground to isolated ground.

• RTS line may have to be disconnected for certain software applications. RTS pin cannot be

disconnected when using a USB connection.

• RTS line must be un-asserted through software for normal USB operation. Please see your

software manual. If software does not allow un-assertion of RTS line, you must use RS232

without RTS connected. The meters use RTS to gain control of the TEDS card.

45

20. EXCITATION OUTPUT & POWER SUPPLY

Three isolated transducer excitation output levels are available from the power supply board. These are selectable via jumpers b, c, d, e, f in the upper right of the board, as illustrated. In addition, the board provides three jumper positions for special features. The same jumper locations apply to the universal power supply (95-240 Vac ±10%) and to the low voltage power supply (12-30 Vac or 10-48 Vdc).

Excitation output Jumper locations

5 Vdc ±5%, 100 mA max

10 Vdc ±5%, 120 mA max

24 Vdc ±5%, 50 mA max

SELECTION OF OTHER JUMPERS Jumper a - Front panel menu lockout, locked when installed. (See Section 9)

Jumper g - Provides +5V power output at P1-4 when installed. Jumper h - Connects "Control Input 2" to P1-4 when installed.

b, d, e

b, d, f

c

46

21. METER CALIBRATION

All analog input and analog output ranges of the meter have been digitally calibrated at the factory prior to shipment using calibration equipment certified to NIST standards. Calibration constants are stored digitally in non-volatile memory in EEPROM on the signal conditioner board and analog output board. As a result, these boards may be mixed and interchanged without requiring meter recalibration. Digital calibration eliminates much of circuitry that would be associated with analog calibration, providing superior long term accuracy and stability.

If recalibration is required, the meter may be returned to the factory .

47

22. SPECIFICATIONS

Meter Display

Type ....................................5 LED, 7-segment, 14.2mm (.56") high digits & 3 LED indicators

Color....................................................................................................................Red or green

Range.................................................................... -99999 to +99999 and -99990 to +99990

A to D Conversion

Technique (Pat.5,262,780)........................................................................ Concurrent Slope

Read Rate ...............................................................60/s for 60 Hz NMR, 50/s for 50 Hz NMR

Output Update Rate .....................................................................56/s at 60 Hz, 47/s at 50 Hz

Display Update Rate .....................................................................3.5/s at 60 Hz, 3/s at 50 Hz

Noise Rejection

CMV from DC to 60 Hz................................................................................Withstand 250Vac

Dielectric strength....................................................... 3.5 kV ac for 5 sec, 2.3 kV ac for 1 min

CMR from DC to 60 Hz ................................................................................................ 130 dB

NMR at 50/60 Hz...............................................................90 dB with minimum digital filtering

Control Inputs (CMOS/TTL levels, logic 0 = tied to digital ground, logic 1 = open)

TM

/ Hold input ..........................................................................Logic 0 holds display and outputs

/ Peak or Valley input .........................................................Logic 0 displays peak/valley value

/ Tare input ......................................................................... Logic 0 offsets input value to zero

/ Tare Reset .........................................................................Logic 0 resets Tare value to zero

/ Reset input ........................................................................ Logic 0 resets all meter functions

/ Function Reset input .................................................Logic 0 resets peak values and alarms

/ Decimal Point input .....................Overrides internal DP selections and controls DP position

/ Display Blank input.....................................................................Logic 0 shuts off the display

Power Requirements

Input Voltage rating (standard)...............95-240 Vac ±10% or 90-300 Vdc (DC range not UL)

Input Voltage rating (low voltage option) ............................................12-30 Vac or 10-48 Vdc

Power Line Frequency .................................................................................DC and 47-63 Hz

Power Consumption, Max ........................................................................................... 5 Watts

Excitation Outputs

Voltage & Current Levels (jumper selectable) .................................. 5 Vdc ±5%, 100 mA max

....................................................................................................... 10 Vdc ±5%, 120 mA max

........................................................................................................ 24 Vdc ± 5%, 40 mA max

Excitation Output Ripple.....................................................................................100 mVp max

Isolation from power and outputs ............................................................................... 250 Vac

Insulation dielectric strength to power and outputs..... 3.5 kV ac for 5 sec, 2.3 kV ac for 1 min

Isolation to signal common........................................................................................... 50 Vdc

48

Input Types, Ranges, Resolution, Error at 25°C DC Volts

Range Resol. Resistance Error

200.00 mV

2.0000 V

20.000 V

200.00 V

300.0 V

DC Amps

Range Resol. Resistance Error

2.0000 mA

20.000 mA

200.00 mA

5.000 A

True RMS Volts (0% to 100% of Full Scale, 0 Hz and 10 Hz to 10 kHz, crest factor 3.0)

Range Resol. Resistance Error

200.00 mV

2.0000 V

20.000 V

200.00 V

600.0 V 100 mV 1 MΩ 2V

True RMS Amps (0% to 100% of Full Scale, 0 Hz and 10 Hz to 10 kHz, crest factor 3.0)

Range Resol. Resistance Error

10 µV

100 µV

1 mV

10 mV

100 mV

0.1 µA 1 µA

10 µA

1 mA

10 µV

100 µV

1 mV

10 mV

1 GΩ

1 GΩ 10 MΩ 10 MΩ 10 MΩ

100 Ω

10 Ω

1 Ω

0.01 Ω

22 MΩ 22 MΩ

1 MΩ 1 MΩ

0.01% of FS

±2 cts

0.01% of FS

±2 cts

0.1% of FS

Thermocouple (0.1°, 1° resolution)

Type Range Error

J

K

T

E

N

S

R

RTD (0.01°, 0.1°, 1° resolution)

Type Range Error

Pt 100Ω

.00385

Pt 100Ω .003925

-210 to 760°C

-347to 1400°F

-244 to 1372°C

-408to 2501°F

0 to 400°C

-257 to 0°C

32 to 752°F

-430 to 32°F

-240 to 1000°C

-400 to 1830°F

-245 to 1300°C

-410 to 2370°F

-46 to +68°C

-51 to +213°F

-45 to 1768°C

-49 to 3214°F

-202 to 850°C

-331 to 1562°F

-202 to 631°C

-331 to 1168°F

.01% FS ±0.09°C

.01% FS ±0.16°F

.01% FS ±0.10°C

.01% FS ±0.17°F

.01% FS ±0.03°C .01% FS ±0.20°C

.01% FS ±0.05°F .01% FS ±0.36°F

.01% FS ±0.18°C

.01% FS ±0.32°F

.01% FS ±0.10°C

.01% FS ±0.17°F

.01% FS ±0.12°C

.01% FS ±0.22°F

.01% FS ±0.17°C

.01% FS ±0.31°F

.01% FS ±0.03°C

.01% FS ±0.05°F

.01% FS ±0.04°C

.01% FS ±0.07°F

2.0000 mA

20.000 mA

200.00 mA

5.000 A 1 mA 0.01 Ω 20 mA

Resistance Measurement

Range Resolution Error

0-20.000Ω 0-200.00Ω 0-2000.0Ω 0-20000 Ω

0-200.00 kΩ

0.1 µA 1 µA

10 µA

1 mΩ

10 mΩ

100 mΩ

1 Ω

10 Ω

100 Ω

10 Ω

1 Ω

0.1% of FS

0.01% of FS

±2 cts

Ni 120Ω

.00672

Cu 10Ω

.00427

Ratio, Potentiometer Follower, Strain

Range Resol. Resistance Error

200.00 mV

2.0000 V

20.000 V

49

-80 to 260°C

-112 to 500°F

-97 to 260°C

-143 to 500°F

10 µV

100 µV

1 mV

.01% FS ±0.05°C

.01% FS ±0.09°F

.01% FS ±0.05°C

.01% FS ±0.09°F

1 GΩ 1 GΩ 1 MΩ

0.01% of FS

±2 cts

Load Cell Input

Range Resolution Resistance Zero Range Span Range Error

20.000 mV

50.000 mV

100.00 mV

250.00 mV

500.00 mV

Thermocouple Accuracy

Span Tempco .........................................................................................0.003% of reading/°C

............................................................................... 0.0015% of reading/°C for load cell meter

Zero Tempco............................................................................................................ 0.2 µV/°C

Reference Junction Accuracy .....................................................................1°C, 10°C to 40°C

Dual & Quad Relay Options

Power to Relay Option ................................................................................Powered by meter

Setpoint Setup....................................................... Via front panel pushbuttons or RS232/485

Update Rate .................................................................................56/s at 60 Hz, 47/s at 50 Hz

Response to input signal (min)..................................................................Display update rate

Input Signal (selectable)........................................................Filtered or unfiltered input signal

Actuation Modes (selectable) ...... Above or below setpoint, latching or non-latching, disabled

Output Time Delay (selectable).................................................................... 1 to 128 readings

Front Panel Enable / Lockout Modes (selectable)................1) Display and change setpoints

...................................................................................2) Display but do not change setpoints

..................................................................................3) Neither display nor change setpoints

Alarm Status Indication ..........................................................................2 or 4 red LED lamps

Status Indication Setup (selectable) .......................Lit when output is ON or OFF, or disabled

1 µV

2.5 µV 5 µV

12.5 µV 25 µV

1 GΩ

-99999 to 99999

0 to ±99,999

0.01% of FS ±2 cts

Form C, SPDT Relay Output:

AC Rating..........................................................................................................8A @ 240 Vac

DC Rating........................................................................................................... 8A @ 24 Vdc

Isolation rating between signal common and contacts ............................................... 250 Vac

Insulation dielectric strength between signal common and contacts ........................................

................................................................................... 3.5 kV ac for 5 sec, 2.3 kV ac for 1 min

50

Form A, SPST Solid State Relay Output:

AC Rating..................................................................................................130 mA @ 140 Vac

DC Rating..................................................................................................130 mA @ 180 Vdc

Isolation rating between signal common and contacts ............................................... 250V ac

Insulation dielectric strength between signal common and contacts ........................................

................................................................................... 3.5 kV ac for 5 sec, 2.3 kV ac for 1 min

Analog Output Option

Power to Analog Output Option...................................................................Powered by meter

Output Levels ..............................................................0-20 mA, 4-20 mA, 0-10V, -10 to +10V

Voltage Compliance, 0-20 mA Output .................................................. 12V (0-600 Ohm load)

Current Compliance, 0-10V, -10 to +10V Output.......................2 mA (5 kOhm or higher load)

Accuracy ..........................................Meter input accuracy ±0.02% of full scale analog output

Resolution ...........................................................................................16 bit (1 part in 65,536)

Response Time ....................................................................................... 50/60Hz update rate

Scaling of Reading for Zero Output............................................................-99,999 to +99,999

Scaling of Reading for Full Scale Output................................................... -99,999 to +99,999

Isolation rating between signal common and analog output....................................... 250V ac

Insulation dielectric strength between signal common and analog output................................

................................................................................... 3.5 kV ac for 5 sec, 2.3 kV ac for 1 min

Serial Interface Option (USB, RS232, RS485, RS485-Modbus boards)

Output Types................................................................RS232, RS485, RS485-Modbus, USB

Power to Interface Option............................................................................Powered by meter

RS485 Wiring ...............................................................................................Half or full duplex

Baud Rates ............................................................ 300, 600, 1200, 2400, 4800, 9600, 19200

Serial Protocols ............................. Custom ASCII, Modbus RTU, Modbus ASCII (selectable)

Signal Levels.............................................................................. Meet RS232, RS485 or USB

Connectors....... USB, Single RJ11 (RS232), two RJ11 (RS485), two RJ45 (RS485-Modbus)

Isolation rating between signal common and serial I/O .............................................. 250V ac

Insulation dielectric strength between signal common and serial I/O .......................................

................................................................................... 3.5 kV ac for 5 sec, 2.3 kV ac for 1 min

Environmental

Operating Temperature .........................................................................................0°C to 55°C

Storage Temperature ........................................................................................ -40°C to 85°C

Relative Humidity ......................................................95% from 0°C to 40°C, non-condensing

Case............................ NEMA-4X (IP65) from front when panel mounted (not verified for UL)

Shock ........................................................................... 10 G at 1 kHz, applied in X, Y, Z axes

Vibration ............................................. 15 Hz to 150 Hz, 1 mm to 2 mm amplitude, 20 G max.

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23. GLOSSARY OF TERMS

Adaptive Filter Threshold A threshold which causes an adaptive moving average filter to be reset to the

latest reading when the accumulated difference between individual readings and the filtered reading exceeds that threshold. Adaptive moving average filtering allows a meter to respond rapidly to actual changes in signal while filtering out normal noise. The accumulated difference is also reset to zero when the latest reading has a different polarity than the filtered reading. A low adaptive filter threshold is normally selected. A high selected if the signal has large transients.

Alarm, Latched An alarm which stays actuated until reset.

Latched alarms can shut down machinery or a process when an operating limit has been exceeded, or maintain an alarm condition until acknowledged by an operator.

Alarm, Non-latched An alarm which changes state automatically

when the reading rises above a specified limit and changes back automatically when the reading falls below a limit.

filter threshold should be

Autofilter A selectable digital filter mode which auto-

matically selects an appropriate moving average filter time constant from 0.08 sec to 9.6 sec for the encountered noise condition.

Auto-tare A selectable meter operating mode, where

the first reading following power-on or meter reset is used to zero the display. Further readings are then relative to this new zero.

Batch Average Filter A digital filter mode which averages 16 readings and then displays the average.

Readings are taken at 60/sec with 60 Hz power and 50/sec with 50 Hz power.

Counts The reading displayed on the panel meter ignoring the decimal point. Custom ASCII Protocol

A simplified, short protocol for use with these panel meters. It allows 31 digital

addresses. Not an industry-standard protocol, like the more complex Modbus protocol, which is also offered with the meters.

Deviation Band A band in counts which controls relay action symmetrically around a setpoint.

The relay actuates when the reading falls within the deviation band, and deactuates when the reading falls outside. A limit (e.g., 50 counts) is set up around both sides of the setpoint to create a deviation band (e.g., 100 counts). Setting up a passband around a setpoint is often used for component testing.

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Deviation limits are programmed by entering

menu item dEU1b for Alarm 1 and dEU2b for

Alarm 2. The deviation band will be equal to

two limits.

Display Blank A rear panel input which blanks the display

when the input is tied to logic ground by a switch or 0V is applied (logic level true). The meter display will light when the input is open or is held at +5V (logic level false).

Extended Meter

A digital panel meter with an enhanced microcomputer that provides added

capabilities, specifically linearization of nonlinear inputs and display of rate of change from successive readings.

Full Scale The maximum input signal range for which the meter has been configured. For

example, the most sensitive full scale for the load cell meter is ±20 mV (signal range from -20 mV to +20 mV).

Function Reset A rear panel control input which resets Peak, Valley and any latched alarms

when the input is tied to logic ground by a switch or 0V is applied (logic level true). To reset the value again, the input must be open or 5V applied (logic level false) and then set low.

Ground Loop A closed conductive path in external ground wiring that allows stray currents to

flow in ground wiring, creating ground noise. The meters in this manual minimize ground loop problems by mutually isolating the grounds associated with meter power, signal input, and all output and communication options.

Jumper A push-on component which provides a short between two adjacent posts on a

circuit board. Jumpers are used to configure signal conditioner boards for specific signal types and full scale ranges, and to configure power supply and communications boards for various modes of operation. Unused jumpers are stored by pushing one side over an unused post.

Hysteresis Band

A band which controls relay action sym-

metrically around a setpoint. The relay closes (or opens) when the reading goes above the setpoint plus one hysteresis limit, and opens (or closes) when the reading falls below the setpoint less one hysteresis limit. A narrow hysteresis band is often used to minimize relay chatter around a setpoint due to electrical noise or signal feedback caused by load switching. A wide hysteresis band can be used for control applications, such as turning on a fill pump when the tank level has reached a lower limit and shutting off the pump when the tank level has reached an upper limit. The hysteresis band will be equal to two hysteresis limits.

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Menu Mode The meter programming mode used for input and range selection, meter setup,

and meter configuration. Entered into from the Run mode by pressing the

MENU key. The Menu mode can be locked out completely by a jumper.

Meter Hold A rear panel input which freezes the meter display and all meter outputs while

that input is tied to logic ground by a switch or is held at 0V (logic level true). The meter will resume operation when the input is allowed to float or is held at +5V (logic level false).

Modbus An industry-standard serial communications protocol which allows devices by

different manufacturers to be digitally addressed by a PC on the same communication line, with up to 247 digital addresses. More complex than the

Custom ASCII protocol, which is also supported by these meters.

Moving Average Filter

A digital filter mode which displays a weighting moving average of readings.

Readings are taken at 60/sec with 60 Hz power and 50/sec with 50 Hz power. Display update rates remain 3.5/sec with 60 Hz power and 3.0/sec with 50 Hz power. There are eight moving average modes:

Old average x 1/2 + new reading x 1/2 (equivalent to 0.08 sec RC time constant). Old average x 3/4 + new reading x 1/4 (equivalent to 0.15 sec RC time constant). Old average x 7/8 + new reading x 1/8 (equivalent to 0.3 sec RC time constant). Old average x 15/16 + new reading x 1/16 (equivalent to 0.6 sec RC time constant). Old average x 31/32 + new reading x 1/32 (equivalent to 1.2 sec RC time constant). Old average x 63/64 + new reading x 1/64 (equivalent to 2.4 sec RC time constant). Old avg. x 127/128 + new reading x 1/128 (equivalent to 4.8 sec RC time constant). Old avg. x 255/256 + new reading x 1/256 (equivalent to 9.6 sec RC time constant).

Offset A constant adder used for the displayed reading. This is the term b in the

straight line formula y = mx + b, where y is the displayed reading in counts, m is the scale factor, x is the measured reading in counts, and b is the offset. For direct readout in (milli)volts or (milli)amps, offset is 0.

Peak Display The maximum (or most positive) reading since that maximum was last reset.

Reset can be via the meter front panel, an external input, or a software command. The displayed value can reflect the filtered or unfiltered readings.

Process Signal A signal whose display requires setup of scale and offset settings for display in

engineering units. A classical process signal is 4-20 mA, where the 4 mA and 20 mA end points can each correspond to a desired meter reading.

Rate of Change Meter

A configuration mode of the Extended meter which allows the display of rate

based on successive readings. The conversion to engineering units is achieved with the combination of a multiplier from 0.1 to 10,000 and a scale factor.

Reading The value displayed by the meter. “Taking a reading” is the action of the meter

to make an analog-to-digital conversion. Readings are taken at 60/sec with 60 Hz power or 50/sec with 50 Hz power, and are displayed with an update rate of

3.5/sec with 60 Hz power or 3.0/sec with 50 Hz power.

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Remote Display A display mode which allows the meter to serve as a remote display to another

meter when connected to it by a 4-wire phone cord. Also allows the meter to transmit raw measurement data to a computer and then display processed data from the computer. A serial communications option board is required in the meter. If such a board is not installed or no serial data is received, the meter

displays rESEt.

Reset There are three types of Reset:

 Peak and Valley Reset. Achieved by simultaneously pressing the RESET

and PEAK keys.

 Latched Alarm Reset. Achieved by simultaneously pressing the RESET and

ALARMS keys.

 Meter Reset. Causes the meter to reinitialize and take a tare reading when

set up for auto-tare. Achieved powering up the meter, by pressing the RESET and MENU keys simultaneously, stepping through all top-level

menu choices, grounding a rear panel connector, or supplying an ASCII

command. rESEt is displayed briefly.

RS485 Half Duplex

Serial communications implemented with two wires, allowing data transmission

in both directions, but not simultaneously.

RS485 Full Duplex

Serial communications implemented with four wires, allowing data transmission

in two directions simultaneously.

Run Mode The normal operating mode of the meter, where readings are taken, as

opposed to the menu mode.

Scale A constant multiplier used to go from A/D

converter counts to displayed counts. This is

the slope term m in the straight line formula y = mx + b, where y is the displayed reading in counts, m is the scale factor, x is the measured reading in counts, and b is the

offset. For direct readout in (milli)volts or (milli)amps, scale is 1.

Scaling The process of setting scale and offset so

that the meter reads properly in engineering units (such as psi).

Scaling, Coordinates of 2 Points Method

A scaling method where four numbers are entered manually: low input, desired

reading at low input; high input, and desired reading at high input. The meter

then applies a straight line fit. The decimal point is set by the separate dEC.Pt

menu item.

Scaling, Scale and Offset Method

A scaling method where scale and offset are entered manually.

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Scaling, Reading Coordinates of 2 Points Method

A scaling method, where the low and high input values are determined from

actual signals. A known low signal is first applied to the meter, such as the output of a pressure transducer at zero pressure. That signal is captured as the low input value, and the desired low reading is entered. A known high signal is then applied, such the output of a transducer for a know weight or pressure. That signal is captured as the high input value, and the desired high reading is entered. The meter then applies straight line fit. This scaling method has the advantage of calibrating the transducer and meter as a system. The actual voltage or current at either point does not need to be known. The decimal point

is set by the separate dEC.Pt menu item.

Setpoint A value compared to the reading to determine the state of a relay. Term often

used interchangeably with “alarm setpoint.” The relay action can by latching or non-latching, utilize a hysteresis band, or utilize a deviation band. Hysteresis

bands and deviation bands are specified by two symmetrical limits around the

setpoint.

Span The number of counts corresponding to a given signal range. Tare A rear panel input which causes the display to be set to zero when the input is

momentarily tied to logic ground by a switch or is held at 0V (logic level true). When the input is allowed to float or is held at +5V (logic level false), the meter displays readings relative to this new zero. A common application is in weighing, where an external Tare button is pressed to read the weight of an empty scale (tare), and tare is then automatically subtracted as a constant from gross weight for display of net weight. Tare can also be used for other applications where a reading relative to starting point is desired.

Valley Display The minimum (or most negative) reading since that minimum was last reset.

Reset can be via the meter front panel, an external input, or a software command. The displayed value can reflect the filtered or unfiltered readings.

Zero When used with process meters, zero is an adjustment so that a given low

transducer output reads zero on the meter. Zero is adjusted by programming offset.

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FUTEK IPM500 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual