NOSHOK 1950 User Manual

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Page 1

1950 SERIES - COMPACT SMART SYSTEM 5-DIGIT PROCESS METER

THREE SELECTABLE D.C. RANGES

0to10V,0(4)to20mA,0to50mA

MINIMUM AND MAXIMUM DISPLAY CAPTURE

LCD, REFLECTIVE OR RED/GREEN LED BACKLIGHTING

0.48" (12.2 mm) HIGH DIGITS

OPTIONAL SETPOINT OUTPUT MODULES

OPTIONAL SERIAL COMMUNICATIONS MODULES (RS232 or RS485)

OPERATES FROM 9 TO 28 VDC POWER SOURCE

FRONT PANEL OR CRIMSON PROGRAMMABLE

DISPLAY COLOR CHANGE CAPABILITY AT SETPOINT OUTPUT

NEMA 4X/IP65 SEALED FRONT BEZEL

GENERAL DESCRIPTION

The 1950 Series provides the user the ultimate in flexibility, from its complete user programming to the optional setpoint control and communicationcapability. The 1950 accepts a DC voltage or current input signal and provides a display in the desired unit of measure. The meter also features minimum and maximum display capture, display offset, units indicator, and programmableuser input. The display can be toggled either manually or automatically between the selected displays.

The 1950 display has 0.48" (12.2 mm) high digits. The LCD is available in two versions, reflective or red/green backlight. The backlight version is user selectable for the desired color and also has variable display intensity.

The capability of the 1 9 5 0 can be easily expanded with the addition of option modules. The setpoint output cards are field installable with programmable setpoints. Serial communications capability for RS232 or RS485 can be added with a serial option module.

The 1 950 can be powered from an optional N O SH OK MicroLine/SensorPower Supply (PS3), which attaches directly to the back of a 1950. The PS3 is powered from 85 to 250 VAC and provides up to 400 mA to drive the unit and sensors.

INPUT

The 1950 is a DC Process meter. It features voltage and current input ranges, that are selected by the user via a programming jumper and software input range selection. The ranges consist of the following: 0 to 10 V, 0(4) to 20mA, or 0 to 50 mA. Users should select the appropriate voltage range that covers their maximum input.

DIMENSIONS In Inches (mm)

Note: Recommended minimum clearance (behind the panel) for mounting clip installation is 2.15" (54.6) H x 3.00" (76.2) W.

SAFETY SUMMARY

All safety related regulations, local codes and instructions that appear in this literature or on equipment must be observed to ensure personal safety and to prevent damage to either the instrument or equipment connected to it. If equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

Do not use this meter to directly command motors, valves, or other actuators not equipped with safeguards. To do so can be potentially harmful to persons or equipment in the event of a fault to the meter.

CAUTION: Risk of Danger.

Read complete instructions prior to

installation and operation of the unit.

CAUTION: Risk of electric shock.

Page 2

GENERAL METER SPECIFICATIONS

1. DISPLAY: 5 digit LCD 0.48" (12.2 mm) high digits

1950X-1 : Reflective LCD with full viewing angle 1950X-2 : Transmissive LCD with selectable red or green LED backlight,

viewing angle optimized. Display color change capability with output state when using an output module.

2. POWER: Input voltage range is +9 to +28 VDC with short circuit and input polarity protection. Must use an NOSHOK model PS3 or a Class 2 or SELV rated power supply.

MODEL

NO.

1950X-1 --- 10 mA 40 mA 1950X-2 Red (max intensity) 85 mA 115 mA 1950X-2 Green (max intensity) 95 mA 125 mA

DISPLAY COLOR

INPUT CURRENT

@ 9 VDC WITHOUT

RELAY CARD

INPUT CURRENT

@ 9 VDC WITH

RELAY CARD

3. INPUT RANGES: Jumper Selectable 0 to 10 V, 0(4) to 20 mA, 0 to 50 mA

4. SENSOR INPUTS:

INPUT

RANGE

20 / 50 mA 0.1% of span

10 VDC 0.1% of span

ACCURACY @23 °C, less than 85% RH

INPUT

IMPEDANCE

10 :

538 K:

MAX INPUT

SIGNAL

150 mA 1μA 70 ppm / °C

RESOLUTION

30 V 1mV 70 ppm / °C

TEMP.

COEFFICIENT

5. OVERRANGE RATINGS, PROTECTION & INDICATION: 9 to 28 VDC power circuit is not isolated from the signal circuit.

Input Overrange Indication:“OLOL ”.

Input Underrange Indication:“ Display Overrange/Underrange Indication:“

ULUL ”.

.....”/“-.....”

6. DISPLAY RESPONSE TIME: 500 msec min.

7. NORMAL MODE REJECTION: 60 dB 50/60 Hz

8. USER INPUT (USR): Programmable input. Connect USR terminal to USR COMM to activate function. Internal 10K: pull-up resistor to +9 to 28 VDC.

Threshold Levels:V Response Time: 5 msec typ.; 50 msec debounce (activation and release)

= 1.0 V max; VIH= 2.4 V min; V

MAX

= 28 VDC

9. CONNECTIONS: Wire clamping screw terminals

Wire Strip Length: 0.3" (7.5 mm) Wire Gage: 30-14 AWG copper wire Torque: 5 inch-lbs (0.565 N-m) max.

10. MEMORY: Nonvolatile E

PROM memory retains all programming

parameters and max/min values when power is removed.

11. CONSTRUCTION: This unit is rated for NEMA 4X/IP65 requirements for

indoor use. Installation Category I, Pollution Degree 2. High impact plastic case with clear viewing window. Panel gasket and mounting clip included.

12. ENVIRONMENTAL CONDITIONS:

Operating Temperature Range for 1950X-1 : -35 to 75°C Operating Temperature Range for 1950X-1/1950X-2 depends on display

color and intensity level as per below:

Red Display

Green Display

INTENSITY LEVEL

1&2 -35 to 75°C

3 -35 to 70°C 4 -35 to 60°C 5 -35 to 50°C

1&2 -35 to 75°C

3 -35 to 65°C 4 5

TEMPERATURE

-35 to 50°C

-35 to 35°C

Storage Temperature: -35 to 85°C Operating and Storage Humidity: 0 to 85% max. relative humidity (non-

condensing)

Vibration According to IEC 68-2-6: 5 to 500 Hz, in X, Y, Z direction for 1.5

hours, 5 g’s.

Shock According to IEC 68-2-27: Operational 30 g, 11 msec in 3 directions. Altitude: Up to 2000 meters

13. CERTIFICATIONS AND COMPLIANCES: IEC 61010-1, EN 61010-1: Safety requirements for electrical equipment

for measurement, control, and laboratory use, Part 1.

IP65 Enclosure rating (Face only), IEC 529

ELECTROMAGNETIC COMPATIBILITY

Emissions and Immunity to EN 61326: Electrical Equipment for Measurement, Control and Laboratory use.

Immunity to Industrial Locations:

Power frequency magnetic fields

Emissions:

Notes:

1. Criterion A: Normal operation within specified limits. Refer to EMC Installation Guidelines for additional information.

14. WEIGHT: 3.2 oz (100 g)

EN 61000-4-6RF conducted interference

EN 61000-4-8

Criterion AEN 61000-4-2Electrostatic discharge 4 kV contact discharge 8 kV air discharge Criterion AEN 61000-4-3Electromagnetic RF fields 10 V/m Criterion AEN 61000-4-4Fast transients (burst) 2 kV power 1 kV signal Criterion AEN 61000-4-5Surge 1 kV L-L,

2 kV L&N-E power Criterion A 3 V/rms Criterion A 30 A/m

Class AEN 55011Emissions

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OPTIONAL PLUG-IN CARDS

ADDING OPTION CARDS

The 1950 meters can be fitted with optional output cards and/or serial communications cards. The details for the plug-in cards can be reviewed in the specification section below. The plug-in cards, that are sold separately, can be installed initially or at a later date.

WARNING: Disconnect all power to the unit before

installing Plug-in card.

Note: Measurement errors may occur if signal input common is shared with

another circuit common (ie, serial common, Dual Sinking Output option card,

or Power Supply common) on multiple units.

SINGLE RELAY CARD

Type: Single FORM-C relay

Isolation To Sensor & User Input Commons: 1400 Vrms for 1 min.

Working Voltage: 150 Vrms

Contact Rating: 1 amp @ 30 VDC resistive; 0.3 amp @ 125 VAC resistive

Life Expectancy: 100,000 minimum operations

Response Time:

Turn On Time: 4 msec max. Turn Off Time: 4 msec max.

1.0 INSTALLING THE METER

DUAL SINKING OUTPUT CARD

Type: Non-isolated switched DC, N Channel open drain MOSFET Current Rating: 100 mA max. V

: 0.7 V @ 100 mA

DS ON

: 30 VDC

DS MAX

Offstate Leakage Current: 0.5 mA max.

RS485 SERIAL COMMUNICATIONS CARD

Type: RS485 multi-point balanced interface (non-isolated) Baud Rate: 300 to 38.4k Data Format: 7/8 bits; odd, even, or no parity Bus Address: 0 to 99; max 32 meters per line Transmit Delay: Selectable

RS232 SERIAL COMMUNICATIONS CARD

Type: RS232 half duplex (non-isolated) Baud Rate: 300 to 38.4k Data Format: 7/8 bits; odd, even, or no parity

INSTALLATION

The meter meets NEMA 4X/IP65 requirements when properly installed. The unit is intended to be mounted into an enclosed panel. Prepare the panel cutout to the dimensions shown. Remove the panel latch from the unit. Slide the panel gasket over the rear of the unit to the back of the bezel. The unit should be installed fully assembled. Insert the unit into the panel cutout.

2.0 SETTING THE JUMPERS

INPUT RANGE JUMPER

This jumper is used to select the proper input range. The input range selected in programming must match the jumper setting. Select a range that is high enough to accommodate the maximum input signal to avoid overloads. To access the jumper, remove the rear cover of the meter.

While holding the unit in place, push the panel latch over the rear of the unit so that the tabs of the panel latch engage in the slots on the case. The panel latch should be engaged in the farthest forward slot possible. To achieve a proper seal, tighten the latch screws evenly until the unit is snug in the panel (Torque to approx. 28 to 36 in-oz [0.202 to 0.26 N-m]). Do not over-tighten the screws.

INSTALLATION ENVIRONMENT

The unit should be installed in a location that does not exceed the operating temperature and provides good air circulation. Placing the unit near devices that generate excessive heat should be avoided.

The bezel should only be cleaned with a soft cloth and neutral soap product. Do NOT use solvents. Continuous exposure to direct sunlight may accelerate the aging process of the bezel.

Do not use tools of any kind (screwdrivers, pens, pencils, etc.) to operate the keypad of the unit.

Warning: Exposed line voltage exists on the circuit boards. Remove

all power to the meter and load circuits before accessing inside of the meter.

REMOVING THE REAR COVER

To remove the rear cover, locate the cover locking tab below the 2nd and 3rd input terminals. To release the tab, insert a small, flat blade screwdriver between the tab and the plastic wall below the terminals. Inserting the screwdriver will provide enough pressure to release the tab locks. To replace the cover, align the cover with the input terminals and press down until the cover snaps into place.

Page 4

3.0 INSTALLING PLUG-IN CARDS

The Plug-in cards are separately purchased option cards that perform specific

functions. The cards plug into the main circuit board of the meter

Range Jumpers

Setpoint Card

Comms Card

Locking Tab

4.0 WIRING THE METER

WIRING OVERVIEW

Electrical connections are made via screw-clamp terminals located on the back of the meter. All conductors should conform to the meter’s voltage and current ratings. All cabling should conform to appropriate standards of good installation, local codes and regulations. It is recommended that the power supplied to the meter (DC or AC) be protected by a fuse or circuit breaker.

Strip the wire, leaving approximately 0.3" (7.5 mm) bare lead exposed (stranded wires should be tinned with solder.) Insert the lead under the correct screw-clamp terminal and tighten until the wire is secure. (Pull wire to verify tightness.) Each terminal can accept up to one #14 AWG (2.55 mm) wire, two #18 AWG (1.02 mm), or four #20 AWG (0.61 mm).

EMC INSTALLATION GUIDELINES

Although this meter is designed with a high degree of immunity to ElectroMagnetic Interference (EMI), proper installation and wiring methods must be followed to ensure compatibility in each application. The type of the electrical noise, source or coupling method into the meter may be different for various installations. The meter becomes more immune to EMI with fewer I/O connections. Cable length, routing, and shield termination are very important and can mean the difference between a successful or troublesome installation. Listed below are some EMC guidelines for successful installation in an industrial environment.

1. The meter should be mounted in a metal enclosure, which is properly

connected to protective earth.

2. Use shielded (screened) cables for all Signal and Control inputs. The shield

(screen) pigtail connection should be made as short as possible. The

connection point for the shield depends somewhat upon the application.

Listed below are the recommended methods of connecting the shield, in order

of their effectiveness.

a. Connect the shield only at the panel where the unit is mounted to earth

ground (protective earth).

b. Connect the shield to earth ground at both ends of the cable, usually when

the noise source frequency is above 1 MHz.

CAUTION: The Plug-in cards and main circuit board contain static

sensitive components. Before handling the cards, discharge static charges from your body by touching a grounded bare metal object. Ideally, handle the cards at a static controlled clean workstation. Also, only handle the cards by the edges. Dirt, oil or other contaminants that may contact the cards can adversely affect circuit operation.

REMOVING THE REAR COVER

c. Connect the shield to common of the meter and leave the other end of the

shield unconnected and insulated from earth ground.

3. Never run Signal or Control cables in the same conduit or raceway with AC

power lines, conductors feeding motors, solenoids, SCR controls, and

heaters, etc. The cables should be ran in metal conduit that is properly

grounded. This is especially useful in applications where cable runs are long

and portable two-way radios are used in close proximity or if the installation

is near a commercial radio transmitter.

4. Signal or Control cables within an enclosure should be routed as far as possible

from contactors, control relays, transformers, and other noisy components.

5. In extremely high EMI environments, the use of external EMI suppression

devices, such as ferrite suppression cores, is effective. Install them on Signal

and Control cables as close to the unit as possible. Loop the cable through the

core several times or use multiple cores on each cable for additional protection.

Install line filters on the power input cable to the unit to suppress power line

interference. Install them near the power entry point of the enclosure. The

following EMI suppression devices (or equivalent) are recommended:

Ferrite Suppression Cores for signal and control cables:

Fair-Rite # 0443167251 TDK # ZCAT3035-1330A Steward # 28B2029-0A0

Line Filters for input power cables:

Schaffner # FN610-1/07 Schaffner # FN670-1.8/07 Corcom # 1 VR3

Note: Reference manufacturer’s instructions when installing a line filter.

6. Long cable runs are more susceptible to EMI pickup than short cable runs.

Therefore, keep cable runs as short as possible.

7. Switching of inductive loads produces high EMI. Use of snubbers across

inductive loads suppresses EMI.

4.1 POWER WIRING

DC Power

+9 to +28 VDC: +VDC Power Common: -VDC

CAUTION:9to28VDC

power circuit is not isolated from the signal circuit.

4.2 USER INPUT WIRING

Sinking Logic

USR COMM USR

The user input of the meter is internally pulled up to +9 to +28 V with 10 K resistance. The input is active when it is pulled low (<0 .7 V).

Connect external switching device between the

}

User Input terminal and User Input Common.

Page 5

Page 6

5.0 REVIEWING THE FRONT BUTTONS AND DISPLAY

BUTTON DISPLAY MODE OPERATION ENTERING PROGRAM MODE PROGRAMMING MODE OPERATION

SEL Index display through enabled values Press and hold for 2 seconds to activate Store selected parameter and index to next parameter

RST Resets values (MIN/MAX) or outputs

Advances through the program menu Increments selected parameter value or selection

OPERATING MODE DISPLAY DESIGNATORS

MAX - Maximum display capture value MIN - Minimum display capture value

Pressing the SEL button toggles the meter through the selected displays. If display scroll is enabled, the display will toggle automatically every four seconds between

the enabled display values.

“1” - To the right of the display indicates setpoint 1 output activated.

“2” - To the right of the display indicates setpoint 2 output activated.

6.0 PROGRAMMING THE METER

OVERVIEW

PROGRAMMING MENU

PROGRAMMING MODE ENTRY (SEL BUTTON)

It is recommended all programming changes be made off line, or before installation. The meter normally operates in the Display Mode. No parameters can be programmed in this mode. The Programming Mode is entered by pressing and holding the either a security code, or a hardware lock.

SEL button. If it is not accessible then it is locked by

MODULE ENTRY (SEL & RST BUTTONS)

The Programming Menu is organized into separate modules. These modules group together parameters that are related in function. The display will alternate between

Pro and the present module. The RST button is used to select the desired

module. The displayed module is entered by pressing the

SEL button.

MODULE MENU (SEL BUTTON)

Each module has a separate module menu (which is shown at the start of each module discussion). The parameter to be changed, without changing the programming of preceding parameters. After completing a module, the display will return to Programming may continue by accessing additional modules.

SEL button is pressed to advance to a particular

Pro NO.

SELECTION / VALUE ENTRY

For each parameter, the display alternates between the present parameter and the selections/value for that parameter. The the selections/values for that parameter. Pressing the activates the displayed selection/value. This also advances the meter to the next parameter.

For numeric values, press the most digit will begin to flash. Pressing the digit by one or the user can hold the scroll. The

SEL button will enter the value and move to the next parameter.

SEL button will advance to the next digit. Pressing and holding the

RST button to access the value. The right hand

RST button is used to move through

SEL button, stores and

RST button again increments the

RST button and the digit will automatically

PROGRAMMING MODE EXIT (SEL BUTTON)

The Programming Mode is exited by pressing the SEL button with Pro NO

displayed. This will commit any stored parameter changes to memory and return the meter to the Display Mode. (If power loss occurs before returning to the Display Mode, verify recent parameter changes.)

PROGRAMMING TIPS

It is recommended to start with Module 1 and proceed through each module in sequence. When programming is complete, it is recommended to record the parameter programming and lock out parameter programming with the user input or programming security code.

FACTORY SETTINGS

Factory Settings may be completely restored in Module 2. This is useful when encountering programming problems.

ALTERNATING SELECTION DISPLAY

In the explanation of the modules, the following dual display with arrows will appear. This is used to illustrate the display alternating between the parameter on top and the parameter’s Factory Setting on the bottom. In most cases, selections and values for the parameter will be listed on the right.

Indicates Program Mode Alternating Display

Parameter

USrIN

Factory Settings are shown.

Selection/Value

Page 7

6.1 MODULE 1 - SIGNAL INPUT PARAMETERS (1-INP)

PARAMETER MENU

1950 INPUT RANGE

SELECTION

rAN6E

Select the input range that corresponds to the external signal. This selection should be high enough to avoid input signal overload but low enough for the desired input resolution. This selection and the position of the Input Range Jumper must match.

dECPt

Select the decimal point location for the Input, MIN and MAX displays. This selection also affects the

OFSEt

The display can be corrected with an offset value. This can be used to compensate for signal variations or sensor errors. This value is automatically updated after a Zero Display to show how far the display is offset. A value of zero will remove the effects of offset.

FILtr

If the displayed value is difficult to read due to small process variations or noise, increased levels of filtering will help to stabilize the display. Software filtering effectively combines a fraction of the current input reading with a fraction of the previous displayed reading to generate the new display.

Filter values represent no filtering (0), up to heavy filtering (3). A value of 1 for the filter uses 1/4 of the new input and 3/4 of the previous display to generate the new display. A filter value of 2 uses 1/8 new and 7/8 previous. A filter value of 3 uses 1/16 new and 15/16 previous.

10u

0.000

10u

DISPLAY DECIMAL POINT

dSP1 and dSP2 parameters and setpoint values.

DISPLAY OFFSET VALUE

RANGE

RESOLUTION

10.000 V

-19999 to 19999

FILTER SETTING

0,1 2 3

SELECTION

0.02A

0.05A

RANGE

RESOLUTION

20.000 mA

50.000 mA

0.000 0.00000.000.00

SCALING STYLE

StYLE

If Input Values and corresponding Display Values are known, the Key-in

(

KEY) scaling style can be used. This allows scaling without the presence or

changing of the input signal. If Input Values have to be derived from the actual input signal source or simulator, the Apply (

INP 1

For Key-in (KEY) style, enter the known first Input Value using the front panel

buttons. (The Input Range selection sets the decimal location for the Input Value).

For Apply (

retain this value, press the SEL button to advance to the next parameter. To change the Input Value, press the RST button and apply the input signal to the meter. Adjust the signal source externally until the desired Input Value appears. Press the SEL button to enter the value being displayed.

dSP 1

Enter the first Display Value using the front panel buttons. This is the same

for

KEY and APLY scaling styles. The decimal point follows the dECPt selection.

INP 2

For Key-in (KEY) style, enter the known second Input Value using the front

panel buttons.

For Apply (

Scaling Point 2. To retain this value, press the SEL button to advance to the next parameter. To change the Input Value, press the RST button and apply the input signal to the meter. Adjust the signal source externally until the desired Input Value appears. Press the SEL button to enter the value being displayed.

KEy APLY

KEy

APLY) scaling style must be used.

INPUT VALUE FOR SCALING POINT 1

0 to 59999

0.000

APLY) style, the meter shows the previously stored Input Value. To

DISPLAY VALUE FOR SCALING POINT 1

-19999 to 99999

0.000

INPUT VALUE FOR SCALING POINT 2

0 to 59999

10.000

APLY) style, the meter shows the previously stored Input Value for

FILTER BAND

bANd

The filter will adapt to variations in the input signal. When the variation exceeds the input filter band value, the filter disengages. When the variation becomes less than the band value, the filter engages again. This allows for a stable readout, but permits the display to settle rapidly after a large process change. The value of the band is in display units, independent of the Display Decimal Point position. A band setting of ‘0’ keeps the filter permanently engaged at the filter level selected above.

0 to 199 display units

DISPLAY VALUE FOR SCALING POINT 2

dSP 2

Enter the second Display Value using the front panel buttons. This is the same

for

KEY and APLY scaling styles.

General Notes on Scaling

1. When using the Apply (APLY) scaling style, input values for scaling points

must be confined to signal limits of the selected range.

2. The same Input Value should not correspond to more than one Display Value. (Example: 10 V can not equal 0 and 10.)

3. For input levels beyond the programmed Input Values, the meter extends the Display Value by calculating the slope from the two coordinate pairs (

dSP1 & INP2 / dSP2).

10.000

-19999 to 99999

INP1 /

Page 8

MODE DESCRIPTIONDISPLAY

Print Request

Print and Reset

P-r5t

Setpoint 1 Reset

rSt-1

Setpoint 2 Reset

rSt-2

Setpoint 1 and 2 Reset

rSt12

USER INPUT ASSIGNMENT

dSP

Select the value(s) to which the User Input Function is assigned. The User

Serial transmit of the active parameters selected in the Print Options menu (Module 5).

Same as Print Request followed by a momentary reset of the assigned value(s).

Resets setpoint 1 output.

Resets setpoint 2 output.

Reset both setpoint 1 and 2 outputs.

HI-LOHI

dSPLO

USrIN

P-Loc

ZErO

rESEt

d-HLd

d-SEL

d-LEV

COLOr

USER INPUT FUNCTION

MODEDISPLAY

No Function

Program Mode Lock-out

Zero Input (Edge triggered)

Reset (Edge triggered)

Display Hold

Display Select (Edge Triggered)

Display Intensity Level (Edge Triggered)

Backlight Color (Edge Triggered)

DESCRIPTION

User Input disabled.

See Programming Mode Access chart (Module 3).

Zero the Input Display value causing Display Reading to be Offset.

Resets the assigned value(s) to the current input value.

Holds the assigned display, but all other meter functions continue as long as activated (maintained action).

Advance once for each activation.

Increase intensity one level for each activation (backlight version only).

Change backlight color with each activation (backlight version only).

U-ASN

Input Assignment only applies if a selection of reset, display hold, or print and reset is selected in the User Input Function menu.

6.2 MODULE 2 - SECONDARY FUNCTION PARAMETERS (2-SEC)

PARAMETER MENU

MAX DISPLAY ENABLE

HI-En

Enables the Maximum Display Capture capability.

HI-t

When the Input Display is above the present MAX value for the entered delay time, the meter will capture that display value as the new MAX reading. A delay time helps to avoid false captures of sudden short spikes.

LO-En

Enables the Minimum Display Capture capability.

LO-t

When the Input Display is below the present MIN value for the entered delay time, the meter will capture that display value as the new MIN reading. A delay time helps to avoid false captures of sudden short spikes.

FCS

Select yES to perform either of the Factory Service Operations shown below.

YESNO

MAX CAPTURE DELAY TIME

0.0 to 999.9 sec.

2.0

MIN DISPLAY ENABLE

YESNO

MIN CAPTURE DELAY TIME

0.0 to 999.9 sec.

2.0

FACTORY SERVICE OPERATIONS

yESNO

RESTORE FACTORY DEFAULT SETTINGS

CodE

calibration values may no longer accurately define the input circuit. For most applications, recalibration every 1 to 2 years should be sufficient.

Calibration of the 1950 involves a voltage or current calibration, which should only be performed by individuals experienced in calibrating electronic equipment. Allow a 30 minute warm up for eqiupment and unit before performing any calibration related procedures. The following procedures should be performed at an ambient temperature of 15 to 35°C (59 to 95°F).

CAUTION: The accuracy of the calibration equipment will directly affect the

Calibration

1. Connect the negative lead of a precision DC source with an accuracy of 0.01%

or better to the COMM. Leave the positive lead of the DC source unconnected.

2. With the display at

will display

3. Press the

4. Press the

5. Apply 0 signal:

Press

6. When the display reads the selected range (10 V, 20 mA, or 50 mA), connect

the positive lead of the DC source to INP+ and apply the full scale input signal

for the range. Press

7. Repeat steps 3 through 6 for each input range to be calibrated. When display

reads

accuracy of the 1950..

RST button to select the range to be calibrated. SEL button. Display reads 0.0A (0.0 V for voltage).

Current: leave the positive lead of the DC source unconnected. Voltage: apply a short to the input or connect the positive lead of the DC

source to INP+ and set the source to 0.

SEL. Display reads CALC for about 8 seconds.

CAL NO, press the SEL button to exit calibration.

Entering Code 66 will overwrite all user settings with the factory settings. The meter will display return to

CodE 00. Press the SEL button to exit the module.

VIEW VERSION DISPLAY

Entering Code 50 will display the version (x.x) of the meter. The display then returns to button to exit the module.

CALIBRATION

The 1950 uses stored calibration values to provide accurate voltage and current measurements. Over time, the electrical characteristics of the components inside the meter could slowly change, therefore the stored

CodE 48, press and hold the SEL button for 2 seconds. Unit

CAL NO.

SEL. Display reads CALC for about 8 seconds.

CodE 00. Press the SEL

rESEt and then

Page 9

6.3 MODULE 3 - DISPLAY AND FRONT PANEL BUTTON PARAMETERS (3-dSP)

PARAMETER MENU

DISPLAY UPDATE TIME

dSP-t

This parameter sets the display update time in seconds.

0.5

seconds

FRONT PANEL DISPLAY SELECT ENABLE (SEL)

COLOr

backlight units only.

DISPLAY COLOR (BACKLIGHT UNIT ONLY)

rEd

Enter the desired display color, red or green. This parameter is active for

6rnrEd

SEL

The yES selection allows the SEL button to toggle through the enabled

displays.

rSt

This selection allows the RST button to reset the selected value(s).

ZErO

This parameter enables the RST button or user input to zero the input display

value, causing the display reading to be offset.

Note: For this parameter to operate, the must be set to not met, the display will not zero.

yES

FRONT PANEL RESET ENABLE (RST)

NOyES

LO HI-LO

dSPNO

dSP

ZERO DISPLAY WITH DISPLAY RESET

dSP and the Input value must be displayed. If these conditions are

NOyES

RST button or User Input being used

DISPLAY INTENSITY LEVEL (BACKLIGHT UNIT ONLY)

d-LEV

Enter the desired Display Intensity Level (1-5). The display will actively dim

or brighten as levels are changed. This parameter is active for backlight units only.

CodE

The Security Code determines the programming mode and the accessibility of programming parameters. This code can be used along with the Program Mode Lock-out (

Two programming modes are available. Full Programming mode allows all parameters to be viewed and modified. Quick Programming mode permits only the Setpoint values to be modified, but allows direct access to these values without having to enter Full Programming mode.

Programming a Security Code other than 0, requires this code to be entered at the code value, Quick Programming may be accessible before the appears (see chart).

1 to 5

PROGRAMMING SECURITY CODE

000 to 999

000

P-Loc) in the User Input Function parameter (Module 1).

CodE prompt in order to access Full Programming mode. Depending on the

CodE prompt

DISPLAY SCROLL ENABLE

ScroL

The yES selection allows the display to automatically scroll through the

enabled displays. The scroll rate is every 4 seconds. This parameter only appears when the MAX or MIN displays are enabled.

UNItS

This parameter activates the Units Indicator on the display. There are two methods of selecting the Indicator. List will present a group of Units preprogrammed into the meter. Segments allows the user to choose which of the segments should light.

UNITS INDICATOR SELECTION

NOyES

OFF

LISt SEGSOFF

USER INPUT

FUNCTION

not P-Loc

* Entering Code 222 allows access regardless of security code.

P-Loc

USER INPUT

______

Not Active 0-999 Full Programming Immediate Access

STATE

Active

SECURITY

100-999

MODE WHEN “SEL”

CODE

BUTTON IS PRESSED

0 Full Programming Immediate Access

1-99 Quick Programming

CodE prompt

0 Programming Lock No Access

1-99 Quick Programming No Access

CodE prompt

FULL PROGRAMMING

MODE ACCESS

After Quick Programming

with correct code entry

CodE prompt *

With correct code entry

CodE prompt *

With correct code entry

CodE prompt *

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6.4 MODULE 4 - SETPOINT OUTPUT PARAMETERS (4-SPt)

PARAMETER MENU

The Setpoint Output Parameters are only active when an optional output

module is installed in the meter.

SETPOINT SELECT

SPSEL

Enter the setpoint (output) to be programmed. The parameters will reflect the chosen setpoint number. After the chosen setpoint is completely programmed, the display will return to each setpoint to be programmed. Select setpoints available is setpoint output card dependent.

Enb-2

Select YES to enable Setpoint 2 and access the setup parameters. If NO is selected, the unit returns to

Act-n

Enter the action for the selected setpoint (output). See Setpoint Output Figures for a visual detail of each action.

HI-Ub

NO to exit the module. The number of

SETPOINT 2 ENABLE

NOYES

SPSEL and setpoint 2 is disabled.

SETPOINT ACTION

HI-bL

SP-2SP-1NO

n in the following

SPSEL. Repeat steps for

LO-UbHI-UbLO-bL

SETPOINT VALUE

SPt-n

Enter the desired setpoint value. The decimal point position for the setpoint

and hysteresis values follow the selection set in Module 1.

HYS-n

Enter desired hysteresis value. See Setpoint Output Figures for visual explanation of how setpoint output actions (balanced and unbalanced) are affected by the hysteresis. When the setpoint is a control output, usually balanced hysteresis is used. For alarm applications, usually unbalanced hysteresis is used. For unbalanced hysteresis modes, the hysteresis functions on the low side for high acting setpoints and functions on the high side for low acting setpoints.

Note: Hysteresis eliminates output chatter at the switch point, while time delay

can be used to prevent false triggering during process transient events.

tON-n

Enter the time value in seconds that the output is delayed from turning on after the trigger point is reached. A value of 0.0 allows the meter to update the output status per the response time listed in the Specifications.

10000

0.0

-19999 to 99999

HYSTERESIS VALUE

1 to 59999

ON TIME DELAY

0.0 to 599.9 Sec

HI-bL

LO-bL

HI-Ub

LO-Ub

High Acting (Balanced Hys) = HI-bL

High Acting (Unbalanced Hys) = HI-Ub

High Acting, with balanced hysteresis

Low Acting, with balanced hysteresis

High Acting, with unbalanced hysteresis

Low Acting, with unbalanced hysteresis

Low Acting (Balanced Hys) = LO-bL

Low Acting (Unbalanced Hys) = LO-Ub

OFF TIME DELAY

tOF-n

Enter the time value in seconds that the output is delayed from turning off after the trigger point is reached. A value of 0.0 allows the meter to update the output status per the response time listed in the Specifications.

rSt-n

Auto = Automatic action; This action allows the output to automatically reset off

at the trigger points per the Setpoint Action shown in Setpoint Output Figures. The “on” output may be manually reset (off) immediately by the front panel point is crossed again.

LAtCH = Latch with immediate reset action; This action latches the output on at

the trigger point per the Setpoint Action shown in Setpoint Output Figures. Latch means that the output can only be turned off by the front panel

0.0 to 599.9 Sec

0.0

OUTPUT RESET ACTION

Auto

Enter the reset action of the output. See figure for details.

RST button or user input.The output remains off until the trigger

LAtCHAuto L-dLY

RST

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button or user input manual reset, serial reset command or meter power cycle. When the user input or the corresponding “on” output is reset immediately and remains off until the trigger point is crossed again. (Previously latched alarms will be off if power up Display Value is lower than setpoint value.)

L-dLY = Latch with delay reset action; This action latches the output on at the

trigger point per the Setpoint Action shown in Setpoint Output Figures. Latch means that the output can only be turned off by the front panel or user input manual reset, serial reset command or meter power cycle. When the user input or delays the event until the corresponding “on” output crosses the trigger off point. (Previously latched outputs are off if power up Display Value is lower than setpoint value. During a power cycle, the meter erases a previous reset if it is not activated at power up.)

RST button is activated (momentary action), the meter

RST button is activated (momentary action),

RST button

L-dLY

OUTPUT RESET WITH DISPLAY RESET

rEn-n

This parameter enables the RST button or user input to reset the output when

the display is reset.

Note: For this parameter to operate, the must be set to not met, the output will not reset.

YESNO

YES

dSP and the Input value must be displayed. If these conditions are

STANDBY OPERATION

RST button or User Input being used

CHANGE DISPLAY COLOR w/OUTPUT STATE

Setpoint Output Reset Actions

Stb-n

When YES, the output is disabled (after a power up) until the trigger point is crossed. Once the output is on, the output operates normally per the Setpoint Action and Output Reset action.

ChC-n

This parameter enables the backlight 1950 to switch the backlight color when the output state changes. This parameter is only active for the backlight version.

6.5 MODULE 5 - SERIAL SETUP PARAMETERS (5-SEr)

PARAMETER MENU

YESNO

The Serial Setup Parameters are only active when the optional RS232 or RS485 serial communications module is installed in the meter.

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