Partlow MRC 7000 Operating Manual

Form 2882 • Price $21.00

Edition 6 • © Dec. 1996
Revised February, 1998

ONE AND TWO PEN CIRCLE CHART RECORDER

MRC 7000

Installation, W iring, Operation Manual

Brand

nformation in this installation, wiring, and operation
manual is subject to change without notice. One
manual is provided with each instrument at the time of

I

shipment. Extra copies are available at the price
published on the front cover.

Copyright © December 1996, all rights reserved. No part of
this publication may be reproduced, transmitted, tran­scribed or stored in a retrieval system, or translated into any
language in any form by any means without the written
permission of the Partlow-West Company.

This is the Sixth Edition of the MRC 7000 Recorder Manual.
It was written and produced entirely on a desk-top-publish­ing system. Disk versions are available by written request
to the Partlow-West Advertising and Publications Depart­ment.

NO TE

We are glad you decided to open this manual. It is written
so that you can take full advantage of the features of your
new MRC 7000 microbased chart recorder.

Is is strongly recommended that factory equipped applications
incorporate a high or low limit protective device which will shut
down the equipment at a preset process condition in order to
preclude possible damage to property or products.

2

TABLE OF CONTENTS

SECTION 1 - GENERAL PAGE NUMBER

1.1 Product Description 5

SECTION 2 - INSTALLATION & WIRING

2.1 Installation & Wiring 7

2.2 Unpacking 7

2.3 Location 7

2.4 Mounting 7

2.5 Preparation for Wiring 8

2.6 Wiring Connections 13

SECTION 3 - CONFIGURATION

3.1 Configuration (Set Up) 18

3.2 Configuration/Jumper Positioning 19

3.3 Operation Summary 19

3.4 Start up Procedure 20

3.5 Front Panel Operation 21

SECTION 4 - SERVICE

4.1 Service 33

4.2 Changing Charts 33

4.3 Changing Pens 33

4.4 Calibration 34

4.5 Test Mode 39

4.6 Troubleshooting and Diagnostics 43

APPENDICES

A - Board Layouts

A-1 Processor Board 50
A-2 SPST Relay/SSR Driver Output Board 51

A-3 SPDT Relay/SSR Driver Output Board 52

A-4 Current Output Board 53
B - Glossary 54
C - Model Number Hardware Matrix Details 55
D - Specifications 56
E - Software Record/Reference Sheet 59

Warranty Inside back page

3

FIGURES & TABLES

Figure 1-1 Recorder Description 5
Figure 1-2 Recorder Display 6
Figure 2-1 Installation Panel Dimensions Conduit Opening Locations 8
Figure 2-2 Noise Suppression 10

Figure 2-3 Noise Suppression 10
Figure 2-4 Board and Terminal Locations 13

Figure 2-5 AC Power Input 14
Figure 2-6 Thermocouple Inputs 14
Figure 2-7 RTD Inputs 14
Figure 2-8 Milliamp, Volt and Millivolt Inputs 15
Figure 2-9 Digital Communications 15
Figure 2-10A SPST Relay Output 16

Figure 2-10B SPDT Relay Output 16
Figure 2-11 SSR Output 16

Figure 2-12 Current Output 17
Figure 2-13 24 VDC Power Supply Option 17
Figure 3-1 Keypad Features 19
Figure 4-1 Changing Pens 33
Table 3-1 Enable Mode Configuration Procedure 24
Table 3-2 Program Mode Configuration Procedure 28
Table 3-3 Alarm Set Mode Configuration Procedure 32
Table 4-1 Calibration Procedure 35
Table 4-2 Test Procedures and Description 40

FLOW CHARTS

Flow - Alarm Set 32
Flow - Calibration 34
Flow - Enable 24
Flow - Program 25
Flow - Test 39

4

Product Description 1.1

1.1.1 GENERAL

The instrument is a microprocessor based circular chart recorder capable of measuring,
displaying and recording from a variety of inputs. Applications include temperature, pressure,
flow and others. The instrument can be specified as either a single or dual pen unit.

Recording, alarm, or limit settings and other parameters are easily entered via the keypad. All
user data can be protected from unauthorized changes by the Enable mode security system,
and is protected against memory loss, as a result of AC power outage, by battery back-up.

The process variable input for each terminal is user configurable to directly connect to either
thermocouple, RTD, mVDC, VDC, or mADC inputs. Changes in input type can easily be
made by the user. Thermocouple and RTD linearization, as well as thermocouple cold
junction compensation, is performed automatically. The instrument process variable inputs
are isolated. An isolated 24 VDC regulated transmitter power supply can be provided in the
instrument for use with up to two 4 to 20 mADC sensor transducers.

The instrument can be ordered to operate on either 115 VAC or 230 VAC power at 50/60 Hz.
The 230 VAC option includes a switch for selecting either 230 VAC or 115 VAC operation.
The recorder is housed in a structural foam enclosure suitable for panel or surface mounting.

FIGURE 1-1

Pen 1 Display

Pen 2 Display

Pen 1 Reset Key

Scroll Key

Up Key

Down Key

Pen 2 Reset Key

5

1.1.2 RECORDING

C

F

2

2

The instrument records the selected process variable on a 10-inch circular chart. One box of
standard charts is provided with each recorder. Charts are available in a wide selection of
ranges. Chart rotation speed is programmable from 0.1 to 999.9 hours per revolution in 0.1
hour increments. The instrument can be ordered with one or two pens. Pen 1 is red and Pen 2
is green. Pens are the disposable fiber-tip type.

1.1.3 DISPLAYS

Each instrument is provided with a digital display and status indicator for each pen provided,
(See Figure 1-1, page 5). The digital display is configured to display the Process Value. The
display in the upper right corner is for Pen 1, the display in the lower right corner is for Pen 2
(if provided). The display includes status indicators for Alarm 1 and Alarm 2, degrees C,
degrees F, engineering units, and setpoint (for limits). See Figure 1-2 (below).

Display resolution is programmable for 0.1 or 1 degree for thermocouple and RTD inputs, and
zero, one, two or three decimal places for other input types.

1.1.4 ALARM

Two alarm indications are standard for each pen on all instruments. Alarm settings are
programmable. Alarm type may be set as process direct or reverse (high or low). Alarm
outputs can be provided by assigning any relay(s) Single Pole/Single Throw (SPST or Solid
State Relay (SSR) driver) to the respective alarm.

1.1.5 LIMIT

Limit indication is standard on limit devices. Limit settings are programmable. Limits may be
High or Low and can be provided by assigning any relay to the respective limit.

1.1.6 PROCESS VALUE RE-TRANSMISSION OUTPUT

If an instrument is specified with mADC current output(s), any of the outputs may be pro­grammed to operate as a process value re-transmission output. The output is scaleable.

1.1.7 DIGITAL COMMUNICATIONS

The instrument can be ordered with a Digital Communications option that provides the
capability of bi-directional communications with a supervisory computer.

FIGURE 1-2

Alarm 1

ALRM1 ALRM

Limit
Setpoint

Alarm

Minus Sign

U

Digital Display

6

Installation and Wiring 2.1

Read these instructions carefully before proceeding with installation and operation. Electrical
code requirements and safety standards should be observed. Installation should be performed
by qualified personnel.

CAUTION: The Instrument AC power input is specified in the model number and on the
wiring label affixed to the the top center of the platen. Verify the AC power input required
by the instrument prior to proceeding with
installation.

Unpacking 2.2

Remove the instrument from the carton and inspect for any damage due to shipment. If any
damage is noticed due to transit, report and file a claim with the carrier. Write the model
number and serial number of the instrument on the inside of the front cover of this Operation
Manual for future reference.

Location 2.3

Locate the instrument away from excessive moisture, oil, dust, and vibration. Do not subject
the instrument to operating temperatures outside of the 32° to 131°F (0° to 55° C) range.

Mounting 2.4

Figure 2-1 (page 8) shows an installation view and physical dimensions for a panel mounted
instrument. The panel where the instrument will be mounted must provide rigid support for
the approximately 20 pound instrument. Adjacent instruments may be mounted within a
minimum of 2 inches horizontally and 3 inches vertically, providing that proper panel support
is supplied.
PANEL MOUNTING HARDWARE REQUIRED: (not provided with instrument)

(4) 1/4"-20 x 2" flat head bolts w/nuts

(4) appropriate lock washers

PANEL MOUNTING:

1) Cut panel opening to the dimensions illustrated in Figure 2-1 (page 8).

2) Insert the instrument in the panel opening. Firmly fasten the instrument to the panel using
the nuts, bolts and lock washers.

SURFACE MOUNTING:

1) Install the mounting brackets, ordered separately, on the vertical sides of instrument
housing. Use the brackets to fasten the instrument to the surface.

7

FIGURE 2-1

)

EC1

5

1

12

7

8
(320.7 mm)
(190.5 mm)

2

19
32

(65.9 mm)2

1

15

(384.2 mm)

8

WIDTH OF COVER

9

DIA.(7.1mm)

32

16
mm

1

2

(64 mm)

2

4

16

1

(342.5 mm)

13

2

15

( 354 mm)

13

16

Panel cut-out for flush mounting

2.5"

63.5mm

Preparation for Wiring 2.5

2.5.1 WIRING GUIDELINES

Electrical noise is a phenomenon typical of industrial environments. The following are guide­lines that must be followed to minimize the effect of noise upon any instrumentation.

2.5.1.1 INSTALLATION CONSIDERATIONS

Listed below are some of the common sources of electrical noise in the industrial environment:

• Ignition Transformers

• Arc Welders

• Mechanical contact relay(s)

• Solenoids
Before using any instrument near the devices listed, the instructions below should be followed:

1. If the instrument is to be mounted in the same panel as any of the listed devices, separate
them by the largest distance possible. For maximum electrical noise reduction, the noise
generating devices should be mounted in a separate enclosure.

8

2. If possible, eliminate mechanical contact relay(s) and replace with solid state relays. If a
mechanical relay being powered by an instrument output device cannot be replaced, a
solid state relay can be used to isolate the instrument.

3. A separate isolation transformer to feed only instrumentation should be considered. The
transformer can isolate the instrument from noise found on the AC power input.

4. If the instrument is being installed on existing equipment, the wiring in the area should be
checked to insure that good wiring practices have been followed.

2.5.1.2 AC POWER WIRING

Earth Ground
The instrument includes noise suppression components that require an earth ground connec­tion to function. To verify that a good earth ground is being attached, make a resistance check
from the instrument chassis to the nearest metal water pipe or proven earth ground. This
reading should not exceed 100 ohms. Each instrument should have a dedicated earth
ground. Do not chain link multiple instrument ground wires.

Neutral (For 115VAC)
It is good practice to assure that the AC neutral is at or near ground potential. To verify this, a
voltmeter check between neutral and ground should be done. On the AC range, the reading
should not be more than 50 millivolts. If it is greater than this amount, the secondary of this
AC transformer supplying the instrument should be checked by an electrician. A proper
neutral will help ensure maximum performance from the instrument.

2.5.1.3 WIRE ISOLATION/SEGREGATION

The instrument is designed to promote proper separation of the wiring groups that connect to
the instrument. The AC power wire terminals are located near the top of the instrument
boards. The analog signal terminals are located near the bottom of the instrument boards.
Maintain this separation of the wires to insure the best protection from electrical noise. If the
wires need to be run parallel with any other wiring type(s), maintain a minimum 6 inch space
between the wires. If wires must cross each other, do so at 90 degrees to minimize the
contact with each other and reduce cross talk. Cross talk is due to the Electro Magnetic Field
emitted by a wire as current passes through it.

2.5.1.4 USE OF SHIELDED CABLE

Shielded cable helps eliminate electrical noise being induced on the wires. All analog signals
should be run with shielded cable. Connection lead length should be kept as short as pos­sible, keeping the wires protected by the shielding. The shield should be grounded at one end
only. The preferred grounding location is at the sensor, transmitter or transducer.

2.5.1.5 NOISE SUPPRESSION AT THE SOURCE

Usually, when good wiring practices are followed, no further noise protection is necessary.
Sometimes in severe electrical environments, the amount of noise is so great that it has to be
suppressed at the source. Many manufacturers of relays, contactors, etc. supply "surge
suppressors" which mount on the noise source.

For those devices that do not have surge suppressors supplied, RC (resistance-capacitance)
networks and/or MOV (metal oxide varistors) may be added.

Inductive Coils - MOV's are recommended for transient suppression in inductive coils con­nected in parallel and as close as possible to the coil. See Figure 2-2, page 10. Additional
protection may be provided by adding an RC network across the MOV.

Contacts - Arcing may occur across contacts when the contact opens and closes. This results
in electrical noise as well as damage to the contacts. Connecting a RC network properly
sized can eliminate this arc.

For circuits up to 3 amps, a combination of a 47 ohm resistor and 0.1 microfarad capcitor
(1000 volts) is recommended. For circuits from 3 to 5 amps, connect 2 of these in parallel.
See Figure 2-3, page 10.

9

FIGURE 2-2

FIGURE 2-3

0.5
mfd
1000V

220
ohms

115V 1/4W
230V 1W

Coil

MOV

R

C

Inductive
Load

2.5.2 SENSOR PLACEMENT (THERMOCOUPLE OR RTD)

Thermocouple lead resistance should not exceed 300 ohms. It this is exceeded, instrument
accuracy could be affected.

Two wire RTD's should be used only with lead lengths less than 10 feet.
If the temperature probe is to be subjected to corrosive or abrasive conditions, it should be

protected by the appropriate thermowell. The probe should be positioned to reflect true
process temperature:

In liquid media - the most agitated area.
In air - the best circulated area.

10

THERMOCOUPLE LEAD RESISTANCE

Thermcouple lead length can affect instrument accuracy since the size (gauge) and the length
of the wire affect lead resistance.

To determine the temperature error resulting from the lead length resistance, use the following
equation:

Terr = TLe * L where; TLe = value from appropriate table below

L = length of leadwire in thousands of feet

TABLE 1

Temperature error in °C per 1000 feet of Leadwire
AWG Thermocouple Type:
No. J K T R S E B N C
10 .68 1.71 .76 2.05 2.12 1.15 14.00 2.94 2.53
12 1.08 2.68 1.21 3.30 3.29 1.82 22.00 4.68 4.07
14 1.74 4.29 1.95 5.34 5.29 2.92 35.00 7.44 6.37
16 2.74 6.76 3.08 8.30 8.35 4.60 55.50 11.82 10.11
18 4.44 11.00 5.00 13.52 13.65 7.47 88.50 18.80 16.26
20 7.14 17.24 7.84 21.59 21.76 11.78 141.00 29.88 25.82
24 17.56 43.82 19.82 54.32 54.59 29.67 356.50 75.59 65.27

TABLE 2

Temperature Error in °F per 1000 feet of Leadwire
AWG Thermcouple Type:
No. J K T R S E B N C
10 1.22 3.07 1.37 3.68 3.81 2.07 25.20 5.30 4.55
12 1.94 4.82 2.18 5.93 5.93 3.27 39.60 8.42 7.32
14 3.13 7.73 3.51 9.61 9.53 5.25 63.00 13.38 11.47
16 4.93 12.18 5.54 14.93 15.04 8.28 99.90 21.28 18.20
18 7.99 19.80 9.00 24.34 24.56 13.44 159.30 33.85 29.27
20 12.85 31.02 14.12 38.86 39.18 21.21 253.80 53.79 46.48
24 31.61 78.88 35.67 97.77 98.26 53.40 641.70 136.07 117.49

Example:
An MRC is to be located in a control room 660 feet away from the process. Using 16 AWG,
type J thermocouple, how much error is induced?

Terr = Tle * L

TLe = 4.93 (°F/1000 ft) from Table 2
Terr = 4.93 (°F/1000 ft) * 660 ft
Terr = 3.3 °F

11

RTD LEAD RESISTANCE

RTD lead length can affect instrument accuracy, since the size (gauge) and length of the wire
affect lead resistance.

To determine the temperature error resulting from the lead length resistance, use the follow­ing equation:

Terr = TLe * L where; TLe = value from Table 3 if 3 wire RTD or Table 4 if 2 wire RTD

L = length of lead wire in thousands of feet

TABLE 3 3 Wire RTD
AWG No. Error ° C Error °F

10 +/-0.04 +/-0.07
12 +/-0.07 +/-0.11
14 +/-0.10 +/-0.18
16 +/-0.16 +/-0.29
18 +/-0.26 +/-0.46
20 +/-0.41 +/-0.73
24 +/-0.65 +/-1.17

TABLE 4 2 Wire RTD
AWG No. Error °C Error °F

10 +/-5.32 +/-9.31
12 +/-9.31 +/-14.6
14 +/-13.3 +/-23.9
16 +/-21.3 +/-38.6
18 +/-34.6 +/-61.2
20 +/-54.5 +/-97.1
24 +/-86.5 +/-155.6

Example:
An application uses 2000 feet of 18 AWG copper lead wire for a 3 wire RTD sensor. What is
the worst case error due to this leadwire length?

Terr = TLe * L

TLe = +/-.46 (°F/1000 ft) from Table 3
Terr = +/-.46 (‡F/1000 ft) * 2000 ft
Terr = +/-0.92°F

12

Wiring Connections 2.6

5

4

2

All wiring connections are typically made to the instrument at the time of installation. Connec­tions should be made at the terminal blocks , two 12 gauge wires maximum. Terminal blocks
are designated TB1 through TB13. See Figure 2-4 for the terminal block locations (SPST
Relay Board shown).

FIGURE 2-4

Processor Board

TB 2

1 2

TB3 TB4

1 2 1 2 3 4 5 1 2 3 4

TB5

12

TB1

1 2 3 4 1 2 3 4 1 2 3

TB6

TB10 TB11 TB12 TB13

1 2

TB7

RELAY/SSR Driver
Board

Current Output Board

1 2 1 2 1

TB8

TB9

1 2 3 4

2.6.1 ELECTRICAL CONDUIT OPENINGS

The instrument case will have 3 or 4 conduit openings, depending upon the number of outputs
specified. To help mimumize electrical noise that may adversely affect the operation of the
instrument the wires indicated below should be routed through the conduit opening specified.
See Figure 2-1 (page 8) for conduit opening locations.

EC1- AC Power Input
EC2- Analog input and mADC outputs
EC3- SPST, SPDT relay or SSR driver outputs
EC4- SPST, SPDT relay or SSR driver outputs (provided when > 4 relays & SSR Drivers

are specified)

Unused conduit openings should be sealed.

2.6.2 AC POWER WIRING CONNECTIONS

WARNING: Avoid electrical shock. AC power wiring must not be connected at the source
distribution panel until all wiring connections are completed.

13

FIGURE 2-5

AC Instrument Power Input
Connect the 115 VAC hot and neutral to terminals 1 and 2 respectively of TB1. See Figure 2-4
(page 13) for Terminal Board locations on the instrument. Connect the 230 VAC one leg to
each terminal, be sure to check the position of the Voltage Selector switch provided with 230
VAC instruments. The switch position must match the voltage input to the instrument.

Connect the AC
ground at the
green ground screw
on the left side of
the inside of the
case

Line 1

TB1

1

Line 2

2

FIGURE 2-6

Thermocouple Inputs
Use TB4 for the Pen 1 input, and TB5 for the Pen 2 input. Connect the positive leg of the
thermocouple to terminal 1, and the negative to terminal 2. Be sure that the input conditioning
jumpers are properly positioned for a thermocouple input. See Appendix A-1 (page 50).

TB4 or TB5

-

+

2345

1

Grounded or
Ungrounded
Thermocouples
may be used

14

FIGURE 2-7

RTD Inputs
Use TB4 for the Pen 1 input, and TB5 for the Pen 2 input. Connections are shown for 3 wire
and 2 wire RTD inputs. If a three wire device is used, install the common legs to terminals 2
and 3. If a two wire device is used, install a jumper between terminals 2 and 3. Be sure that
the input conditioning jumpers are properly positioned for an RTD input. See Appendix A-1
(page 50).

TB4 or TB5

-

+
12

345

TB4 or TB5

-

+
12

345

Jumper

SUPPLIED BY
CUSTOMER

3 Wire RTD 2 Wire RTD

FIGURE 2-8

-

Volt, Millivolt and milliamp Input
Make the volt, millivolt or milliamp connections as shown below. Use TB4 for the Pen 1 input,
and TB5 for the Pen 2 input. Terminal 1 is positive and terminal 2 is negative. The milliamp
input requires the installation of an appropriate shunt resistor (ordered separately) between
terminals 1 and 2. Be sure that input conditioning jumpers are in the correct positions for the
input being connected. See Appendix A-1 (page 50).

Note: Fault Detection is not functional for 0-5V or 0-20mA Inputs.

TB4 or TB5

+-

1 2345

SHIELDED
TWISTED
PAIR

+

SOURCE

GROUNDED
OR
UNGROUNDED

MAY BE

FIGURE 2-9

Digital Communications Options
Connections are made as shown using TB2. Refer to the Protocol Manual, Form #2878 for
more details regarding the connections and how to use this option. This document is provided
only when this option has been specified. If the communications network continues on to other
instruments, connect the cable shields together, but not to the instrument. A terminating
resistor should be installed at the terminals of the last unit in the communications loop. If the
communications network ends at the instrument, the shield is not connected.

TB2

Serial A

1

2

Serial B

TOWARD THE

COMPUTER

NETWORK
CONTINUATION
(IF APPLICABLE)

15

2.6.4 OUTPUT CONNECTIONS

-

Relay output(s) if provided in the instrument may be assigned to alarm output functions for
Pen 1 and/or Pen 2 (if present) if instrument is recorder. Relay outputs, if instrument is a limit
device, may be assigned to limit output functions. Current outputs may be assigned to
process value retransmission output for Pen 1 and/or Pen 2 (if present). The assignment of
the output function is accomplished in the Program mode, see Table 3-2 (page 28). SPST
relay and/or SSR driver output(s) is/are designated as Relay A through Relay H. SPST relays
begin with Relay A designation, then B, C, etc. SSR drivers begin with Relay H designation
then G, F, etc. except when 4 SSR drivers are required in conjunction with SPDT relays, then
designation E & F are not available. SSR driver designation becomes G, H, D, and C. SPDT
relay output(s) are designated as Relay A and Relay B only.

FIGURE 2-10A

SPST Relay Output
Connections are made to relays A through F as shown. Terminal connections are made using
TB6 (Relay/SSR Driver A, B), TB7 (Relay/SSR Driver C, D), and TB8 (Relay/SSR Driver E,
F).

HOT

TB6 Relay A & B, Relay A Terminals 1 & 2
TB7 Relay C & D, Relay C Terminals 1 & 2
TB8 Relay E & F, Relay D Terminals 1 & 2

FIGURE 10B

SPDT Relay Output

TB6 Relay A
TB7 Relay B

123

N.O. C N.O. C

123

N.O. C N.C.

4

LOAD

LOAD

HOT
NEU

NEU

5 AMPERES
MAXIMUM
AT 115 VAC

POWER

5 AMPERES
MAXIMUM
AT 115 VAC

POWER

FIGURE 2-11

SSR Driver Output
Connections are made to relays H through A as shown.

1 234

+

SSR

SOLID STATE RELAY

TB6 THRU TB9

TB9 SSRD G, H - all cases

16

TB8 SSRD E, F - no SPDT relays
TB8 SSRD C, D - SPDT relay/s E and F not available

FIGURE 2-12

-

-

-

-

5

-

-

Current Output
Connections are made to current outputs A thru D as shown. Each current output is program­mable as either 4 to 20 mADC or 0 to 20 mADC. Each output must be assigned to the desired
function (refer to Table 3-2, page 28, for details.) Terminal connections are made using TB10
through TB13 for current output A through D respectively. Connect positive lead (+) to
terminal 1 and the negative lead (-) to terminal 2. Current outputs will operate up to 650 ohms
maximum load.

+

-

12

SHIELDED
TWISTED
PAIR

+

LOAD

650 OHMS
MAXIMUM

FIGURE 2-13

Transmitter Power Supply Input
If the isolated 24 VDC regulated transmitter power supply has been specified, the connections
should be made as shown. Connections are made using TB3, terminal 1 is positive and
terminal 2 is negative. The power supply is capable of providing the power needed by as
many as 2 transmitters.

TB3

+
12

TB4 or TB5

+

-

12345

SHIELDED

TWISTED

PAIRS

TB3
+

12

TB4

+

-

12345

TB

+

-

12345

+

TWO WIRE

TRANSMITTERS

+

TWO WIRE

TRANSMITTERS

TRANSMITTERS

+

TWO WIRE

17

Configuration 3.1

After completing installation and wiring of the instrument the configuration (set up) procedures
must be performed to prepare the instrument for operation of the intended application. The
procedures include selecting specific parameters, entering data and possible jumper position­ing. Once properly configured the instrument will retain the user selections in memory. This
procedure need not be repeated unless required by changes in the application.

Parameter selections and data entry are made via the front keypad. To ease configuration
and operation, user entered data has been divided into several sections referred to as modes.
Each mode contains a different type of data or may be used for specific operating functions.
For two pen instruments, some modes are common to both pens. These modes are as
follows:

Operation
(oPEr)

Test
(tESt)

Calibrate
(CAL)

Program
(Prog)

Alarm Set
(EASt)

MODE DISPLAY CODE FUNCTION DESCRIPTION

Off oFF Operation Limits and Alarms

Operate oPEr Operation Limits and Alarms

Test tESt Service Tests Instrument

Calibration CAL Service Calibrates Instrument
Program Prog Configuration Configure Operating

Alarm Set ASEt Configuration & Enter Alarm Settings

Operation

Enable Enab Configuration Mode security

are Off.
Chart may stop
rotating(selectable)

are Active

Operation

Parameters

system, can lock
out everything except
Off and operate
(See Appendix A-1,
page 50, for
hardware lockout
information).

18

Associated with each mode is a series of unique displays which are accessed via the front
keypad.

Prior to first time operation of the unit, the configuration procedures for the Program and
Alarm Set modes must be performed as applicable. Calibration and Test modes are not used
as part of the instrument configuration or operation. These are used for service and mainte­nance functions and are discussed in Section 4.6 of this manual (page 43).

Shipped Configuration/Jumper Positioning 3.2

Each instrument is factory shipped ready to accept a thermocouple input on TB 4 and TB 5.
All configuration parameters in each mode are set to default values. These defaults are shown
in tabular form after the description for each mode. Instrument AC power input is as specified
in the instrument model number and is shown on the ratings label. The 230 VAC option
includes a switch in the instrument for selecting either 230 VAC or115 VAC input power. If
this feature is provided, verify AC input and switch position before applying power to the
instrument.

3.2.1 JUMPER POSITIONING

Jumpers are used to provide a security lockout feature and to condition the sensor inputs. All
jumpers are typically of the three pin type and have two functions. All jumpers are located on
the instrument Processor board. The instrument board layout and jumper locations are shown
in Appendix A-1 (page 50). Check the actual jumper position in the unit to be configured and
verify the proper position for the intended application. .

The sensor input jumpers JU4, JU5, JU6 and JU7 condition the sensor input at a basic
level. Detailed input type selection is made in the Program mode.

Operation Summary 3.3

Prior to operation the Program mode parameters and Alarm Setting(s), if used, must be
selected for the application. Data and parameter entry is made by stepping through each
mode and making an appropriate response or entry to each step.

3.3.1 KEYPAD OPERATION

Refer to Figure 3-1 for the Keypad features. Use the SCROLL, UP and DOWN keys as
indicated to program and operate the instrument.

FIGURE 3-1

Reset
Key

Reset
Key

SCROLL
Key

RESET

UP
Key

DOWN
Key

RESET

19

3.3.2 CONFIGURATION DISPLAYS

Each pen specified is provided with its own 4 digit LED display. These are used during
configuration to display the parameter codes and values. The display located in the upper
right hand corner of the instrument is used to show the codes for Pen 1 and those that are
common between Pens 1 and 2. The display in the lower right hand corner is used to show
the configuration codes for Pen 2 (if provided).

During normal operation, the display(s) are used to indicate process value(s) as selected in
the Program mode.

3.3.3 MODE SELECTION

If the instrument is either in the Off mode or the Operation mode repeated pressing and
releasing of the SCROLL key will cause the instrument to display the code corresponding to
each mode that is enabled. To enter a mode, while the code is displayed, press the Down
key.

Entry into any mode except the Operation and Enable modes, will cause the alarm(s) to turn
off and any process retransmission value output(s) to be 0 %.

Start Up Procedure 3.4

All configuration parameters are listed in Tables 3-1 through 3-3 (pages 24-32).
For a single pen instrument, parameters for each mode are displayed in the upper right

display. If the instrument being configured is a two pen model, a sequence of applicable
parameters will be displayed in the Pen 2 display after the Pen 1 parameters have been
reviewed and configured. After the Pen 2 parameters have been completed, parameters
common to both pens will be configured and displayed in the Pen 1 display.

The instrument is provided with a time out feature. If the instrument is in any mode and no
keypad activity takes place for 30 seconds, the instrument will time out and exit the mode
automatically. The display will be the code for the respective mode. If a mode code is
displayed for 5 seconds with no keypad activity, then the time out will cause the instrument to
proceed to either the Operation or Off mode, depending upon which operational state was in
use before entrance into the mode.

3.4.1 POWER UP PROCEDURE

Step 1
Verify that all electrical connections have been properly made before applying power to the
unit.

Step 2A - For instruments with software revision R2.99 and below
Upon power up, 7XXX will be displayed (X representing digits), then XXXX, then XXXX,
identifying the twelve digit model number as defined in the order matrix. Next, the EPROM
part number will be indicated P-XX. After the EPROM part number, the software revision level
will be displayed in the format rX.XX then tSt1, tSt2, and tSt3 will be displayed while Test 1
through 3 are executed automatically. Upon successful completion of these test, oPEr or oFF
will be displayed for about 3 seconds. The mode displayed will be the mode the instrument
was in when the power was turned off. During this time, the operator may select another
mode (Alarm Set, Enable) or non-operational mode (Test, Program, Cal).

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