Dwyer Instruments MPC User manual

Bulletin L-20

4-1/2 [114.3]

PA

AT THE REAR OF THE INSTRUMENT.

TYPE 4X]

Series MPC Pump Controller

Specications - Installation and Operating Instructions

NEL CUT-OUT: 3.620 X 3.620 IN, +0.032/-0.000

ALLOW FOR 0.5 IN [13 MM] CLEARANCE

TABLE OF CONTENTS

Dimensions

Specications ..............................1

Getting Started ..............................2

Model Identication ..........................2

Installation .................................2

Wiring ...................................3-5

Front Panel Functions ......................6-7

Home Display ...............................7

Security Level Selection ......................7

Lead/Lag Operation ..........................7

Seal Failure Operation .....................7-8

Over Temperature Operation ..................8

Analog Retransmission Operation .............8

Pump Run Time Operation ....................8

Serial Communication Operation ...............8

Menu Selections ............................9

Secondary Menu ............................9

Secure Menu ...........................10-11

Alarm Type and Action ...................11-12

Diagnostic Error Messages ..................13

Programming Chart .........................14

Programming Example ......................15

................................1

17/32 [13.5]

3-19/32

[91.3]

[92 X 92 MM, +0.8/-0.0].

SPECIFICATIONS
Inputs: 4-20 mA DC or 2.0 to 10.0 V DC selectable.

Input Impedance: Current input: 10 Ω, Voltage input:

100K Ω.
Output Ratings: Control relays: SPDT, rated 10A @
240 VAC res., 1/4 hp @120 VAC, 1/3 hp @ 240 VAC;
Alarm relays: SPST, 3A @ 240 VAC res., 1/10 hp @

120 VAC.

Control Type: On/off, reverse or direct acting.
Power Requirements: 100-240 VAC nominal,

+10%-15%, 50 to 400 Hz, single phase; 132-240 VDC
nominal, +10%-15%.

Power Consumption: 7.5 VA max.
Accuracy: 0.25% of span, 1 least signicant digit.
Display: Two 4 digit, 7 segment 0.56˝ high LEDs.
Display Resolution: 1 count.
Memory Backup: Nonvolatile memory (no batteries

required).
Serial Communications: Optional RS-232 or RS-485
with Modbus

Ambient Operating Temperature / RH: 14 to

131°F (-10 to 55°C) / 0 to 90% up to 104°F (40°C)
non-condensing, 10 to 50% at 131° F (55°C) non­condensing.

Weight: 16 oz. (454 g).
Front Panel Rating: Meets UL type 4X (IP66).
Loop Power Supply (Isolated): 24 VDC @ 50 mA,

regulated.

Seal Failure (Moisture Sensor): Power supply

to moisture sensor: 2.5 VDC; Search current: 3
micro amps; Resistance sensitivity: 10K to 500K Ω;
Resistance resolution: 10K Ω steps.
Over Temperature: Input: Dry contact on transistor
switch (NPN open collector type); Current: 1 mADC;
Isolation: Shares common ground with transmitter

input.

Alarm On-Off Differential: 1 count.
Set Point Range: Selectable.
Power Voltage Stability: 0.05% over the power

voltage range.
Temperature Stability: 100 PPM/°C typical, 200
PPM/°C maximum.
Common Mode Rejection: 140 db minimum at 60
Hz.
Normal Mode Rejection: 65 db typical, 60 db at 60
Hz.
Isolation: Relay: 1500 VAC to all other inputs and
outputs; 24 VDC loop power: 500 VAC to other inputs
and outputs; Process output: 500 VAC to other inputs
and outputs; Seal failure input: 500 VAC to other
inputs and outputs.

Storage Temperature: -40 to 176° F (-40 to 80° C).
Agency Approvals: UL 508.

®

protocol.

MAX. PANEL
THICKNESS 0.25 [6.35]

3-25/32 [95.9]

3-25/32

[95.9]

MEETS IP66 [UL

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1

GETTING STARTED

1. Install the control as described on page 2.

2. Wire the control following the instructions on pages
3 through 5. Page 3 contains basic wiring for the
control. If using the Series MPC’s transmitter power
supply follow the additional directions on page

4. Wiring instructions for the 232 and 485 series
communication options is included on page 5.

3. Familiarize yourself with the front key pad functions
and read the menu structure prior to starting the
programming process. A programming chart with
the menu structure and spaces to write your
programming values is included on page 14. This
chart can be a helpful tool to save time in
programming. For further assistance programming
examples are included on page 15.

MODEL IDENTIFICATION

Model MPC -

Options

OPTIONS
232

RS-232 Modus®-RTU serial communications.
Allows remote computer to read and write all

control parameters.

485

RS-485 Modbus®-RTU serial communications.
Allows remote computer to read and write all

control parameters.

RV

Analog retransmission of input, 2-10 VDC.

Input Ranges
Process Input Types

The 0-20 mADC, 4-20 mADC, 0-10 VDC, and 2-10
VDC inputs are fully scalable from a minimum of 100
count span placed anywhere within the range of -1999
to +9999. Decimal point position is adjustable from the
zero place (9999), tenths (999.9), hundredths (99.99), or
thousandths (9.999).

Installation

Mount the instrument in a location that will not be subject
to excessive temperature, shock, or vibration (see
Specications for specic tolerances). All models are
designed for mounting in an enclosed panel.

Select the position desired for the instrument on the
panel. Prepare the panel by cutting and deburring the
required opening.

From the front of the panel, slide the housing through
the cut out. The housing gasket should be against the
housing ange before installing.

From the rear of the panel slide the mounting collar over
the housing. Hold the housing with one hand and using
the other hand, push the collar evenly against the panel
until the springs are compressed. The ratchets will hold
the mounting collar and housing in place.

Panel cut-out:

3.620 x 3.620 in,
+0.032/-0.000

(92 x 92 mm,

+0.8/-0.0)

Figure 1: Panel cut out dimensions

It is not necessary to remove the

CAUTION

chassis is removed from the housing, you must follow
industry standard practice for control and protection
against Electro-Static Discharge (ESD). Failure to
exercise good ESD practices may cause damage to the

instrument.

instrument chassis from the housing
for installation. If the instrument

2

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WIRING

SENSOR

Do not run transmitter wiring or other class 2 wiring in
the same conduit as power leads. Use only the probe or
transmitter for which the control has been programmed.
Maintain separation between wiring of sensor, auxiliary
in or out, and other wiring. See the ˝Secure Menu˝ for

input selection.

Supply connections should be made in accordance with
the National Electrical Code per Article 300, and local
regulations. All line voltage output circuits must have a
common disconnect and be connected to the same pole
of the disconnect.
Input wiring for probe or transmitter is rated CLASS 2.
Control wiring is as shown in Figure 2 below.

PUMP 1 OVER TEMP

PUMP 2 OVER TEMP

1

VOLTAGE

CURRENT

SEAL

PUMP1

PUMP2

INPUTS

ALARM 1
CONTACTS

ALARM 2
CONTACTS

NOTES:

1. FOR SUPPLY CONNECTIONS USE
NO. 16 AWG OR LARGER WIRES RATED
FOR AT LEAST 167˚F (75˚C) OR, IN
ACCORDANCE WITH AN EQUIVALENT
NATIONAL STANDARD.

2. MAXIMUM AMBIENT TEMPERATURE
RATING 131˚F [55˚C].

3. USE COPPER CONDUCTORS ONLY.

4. TERMINALS 1-6, 11, 12, 21-32
ARE CLASS 2 "SELV".

If not using pump over temperature inputs then jumper
terminals 22 to 23 and 22 to 24.

2

3

4

5

6

7

8

9

10

22 23

N.O.

COM.
N.O.
COM.

28 29

Figure 2: Wiring

ANALOG RETRANSMISSION

2621

24 25

30 31

11

12

13

N.C.

COM.

14

15

N.O.

N.C.

16

17

COM.

18

N.O.

19

20

3227

LINE INPUT

100 TO 240 VAC 50-

400 HZ. SINGLE PH.

132 TO 240 VDC 5VA.

MAX. OUTPUT RATINGS:

RELAY: 10A @ 240 VAC RES.

1/4 HP @ 120 VAC
1/3 HP @ 240 VAC

ALARM: 3A @ 240 VAC RES.

1/10 HP, 120 VAC

24 VDC

50 MA

ISOLATED

PUMP 1

OUTPUT

PUMP 2

OUTPUT

290-3120

@

3

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WIRING FOR TRANSMITTER INPUTS USING

CONNECT JUMPER BETWEEN TERMINALS 2 AND 12

INTEGRAL POWER SUPPLY

Wire power and outputs as shown on previous page.
Wiring for two-wire transmitters shown below in Figure 3.
All wiring shown in Figure 3 is Class 2.

CONNECT TRANSMITTER PLUS [+] TO TERMINAL 11

1

2

CONNECT TRANSMITTER
MINUS [-] TO TERMINAL 3

LEVEL
TRANSMITTER

Figure 3: Transmitter wiring

For three or four wire transmitters follow the wiring
instructions provided with your transmitter.

WARNING

will result.

DO NOT wire the 24 V Power Supply
across the input of the control.
Damage to the control input circuitry

3

4

5

6

7

8

9

10

22 23

28 29

24 25

30 31

11

2621

12

13

14

15

16

17

18

19

3227

20

4

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WIRING FOR 485 AND 232 SERIAL COMMUNICATION

DB-25 WIRING

]

OPTIONS

Wire power and outputs as shown on page 3. Wiring
for options is shown in Figure 4 below. All wiring shown
below is Class 2. Shielded twisted pair is recommended
for Option 485.

WARNING

to the control circuitry will result.

DO NOT run signal wiring in the
same conduit or chase as the power
wiring. Erratic operation or damage

[VIEWED FROM WIRE SIDE]

1

2

3

4

5

6

7

8

9

10

21 22 23

OPTION
485 DIP HALF
DUPLEX*

1 2 3 4 5 6

29

27 28

SWITCH
POSITIONS*

FULL DUPLEX
ON
OFF

1 2 3 4 5 6

242526

30 31 32

11

1 2 3 4 5 6 7 8 9 10 11 12 13

12

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

13

PIN DESCRIPTION

14

1 SHIELD
2 TRANSMIT

15

3 RECEIVE
4 RTS

16

5 CTS
RS-232 DB-9 WIRING [VIEWED FROM WIRE SIDE

17

18

1 2 3 4 5

19

6 7 8 9

20

DATA IN 30
DATA OUT 32
DATA GROUND 31

PIN DESCRIPTION
6 DSR
7 GROUND
8 DCD
20 DTR

DATA OUT 32
DATA IN 30
DATA GROUND 31

PIN DESCRIPTION
1 DCD
2 RECEIVE
3 TRANSMIT
4 DTR
5 GROUND
6 DSR
7 RTS
8 CTS

Terminal 29 30 31 32

Option 485
Option 232

Y (receive -)
Not used

Z (receive +)

Data out

A (transmit -)*
Data ground

B (transmit +)*

Data in

*For half-duplex operation wire only A and B. Do not connect to Y and Z.

Figure 4: Wiring for options

5

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FRONT PANEL FUNCTIONS

PUMP
ON LAMP

TURE

TURE

PUMP
ON LAMP

ALARM LAMPS

1

2

LEVEL
DISPLAY

1ST SET
POINT
DISPLAY

SYSTEM
TEST
LAMP

Key functions are as follows:

INDEX: Pressing the INDEX key for 2 seconds

will bring up the Secondary menu starting at the
SP1H menu item. Holding the key for 5 seconds will
bring up the Secure menu starting with the menu
item SECr. Once in the menus, pressing the
INDEX key advances the display to the next menu
item. May also be used in conjunction with other
keys as noted below.

SYSTEM TEST: When Test menu item is ˝On˝
depressing this key for three seconds will make the
MPC Pump Controller go through a system test.
See page 10 for explanation of system test function.

UP ARROW: Increments a value, changes a
menu item, or selects the item to ON. The maximum
value obtainable is 9999 regardless of decimal

point placement.

DOWN ARROW: Decrements a value, changes a

menu item, or selects the item to OFF. The
minimum value obtainable is -1999 regardless of
decimal point placement.

ENTER: The ENTER key is used to store
the value of menu items once they are changed to
a new value. If the ENTER key is not pressed
after changing the value the item will revert to the
previously stored value.

PUMP RUN TIME: Pressing this key will cause
the MPC Pump Controller to display the total run
time (in hours) that the pump(s) have been on since
the last reset.

PUMP 1 SEAL
FAILURE LAMP

PUMP 2 SEAL
FAILURE LAMP

PUMP 1 OVER
TEMPERA
LAMP

PUMP 2 OVER
TEMPERA
LAMP

PUMP RUN
TIME LAMP

6

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INDEX AND DOWN ARROW: Pressing these
keys simultaneously will allow backing up one
menu item, or if at the rst menu item they will
cause the display to return to the primary menu.
If an alarm condition has occurred, these keys
may be used to reset the alarm.

INDEX AND ENTER: Pressing these keys
simultaneously and holding them for 5 seconds
allows recovery from the various error
messages. The following menu items will be

reset:

ALiH: Alarm inhibit
CHEC CAL: Check calibration error

Correct the problems associated with the above
conditions before using these reset keys. More than one
error could be present. Caution is advised since several

items are reset at one time.

THE HOME DISPLAY

The home display is the normal display while the control
is operating. If no errors or functions are active, the
HOME display will indicate the Process Variable (the
level that is being measured) on the top display and the
SP1H value, Pump 1 On Set Point, on the bottom display.

Error messages may over-ride the HOME display. See
ERROR MESSAGES on page 13.

While in the Secondary Menu, if no key is pressed for
a period of 30 seconds, the display will return to the
HOME position displaying the process value. While in
the Secure Menu, if no key is pressed for a period of
60 seconds, the display will return to the HOME position
displaying the process value. Outputs are disabled
(turned off) when the Secure Menu is active.

SECURITY LEVEL SELECTION

Three levels of security are provided. The SECr menu
item security level may be viewed or changed at any time
regardless of the present security level in the Secure
menu. The display shows the current security level. To
change security levels change the password value using
the UP ARROW or DOWN ARROW keys and
pressing the ENTER key. Refer to the password
table (following) for the correct value to enter for the
security level desired.

To set the access level to, for example, 2, at the SECr
menu item press the UP ARROW key until the upper
display shows the password,1101. Press the ENTER
key. The display will blink, and return with the level value,
2, in the upper display.

The password values shown in the table cannot
be altered. Retain a copy of these pages for future
reference. This is the only reference made to password
values in this instruction book.

PASSWORD TABLE

Menu

Secondary

Secure

Secondary

Secure

Secondary

Secure

Security
Level
Status

Locked
Locked
Unlocked
Locked
Unlocked
Unlocked

Displayed
Value
When Viewed

2

3

4

Password
Value To

Enter

1101

1011

111

LEAD/LAG OPERATION

The Mercoid® MPC pump controller is designed to easily
operate a pair of pumps in the most efcient manner
possible. The controller has a ‘lead/lag’ feature that
allows two pumps to operate in an alternating fashion to
minimize wear.

The Mercoid® MPC pump controller has a pair of set
points each for pump 1 and pump 2. If the lead/lag
feature is turned off, SP1H and SP1L control pump 1 and SP2H
and SP2L control pump 2. If the lead/lag feature is turned
on, pumps 1 and 2 will be controlled in the alternating
fashion described below. In all cases the P1 lamp will
indicate activity of pump 1 and the P2 lamp will indicate
activity of pump 2. The lead/lag operation is set in the
Secure menu with the item LdL9.

Lead/Lag On

After installation, set the SP1H to the high level (pump on
point) for standard operation. Set SP1L to the low level
(pump off point). Set the SP2H to the level where you want
BOTH pumps to turn on (emergency pump on). Set the
SP2L to the level where you want the second pump to turn
off (emergency pump off).

The controller will not allow you to set SP1H below SP1L,

SP1L above SP1H, SP2H below SP2L, or SP2L above SP2H. The
controller will not allow you to set any set point or alarm

point above or below the programmed scale. No error
messages are generated. The displayed value will stop
at an allowable point just above (or below, as the case
may be) the maximum or minimum allowed.

In normal operation, when the SP1H point is reached, one
of the pumps will turn on. When lead/lag is turned on,
pumps 1 and 2 will alternate. If the level reaches the SP2H
point, both pumps will be turned on until the SP2L point is
reached, where one of the pumps will turn off. When SP1L
is reached, remaining running pump will turn off. The last
pump off will not be the next pump on.

Lead/Lag Off

If lead/lag is turned off, SP1H and SP1L control pump 1 and
SP2H and SP2L control pump 2. There is no alternating

function.

SEAL FAILURE OPERATION

The Mercoid® MPC Pump Controller is designed to work
with most types of submersible pump moisture sensors
to detect outer seal failure. Most often the moisture
sensor is a conductance device that detects moisture in
the oil chamber indicating an outer seal failure. Using a

2.5 VDC power supply sent to the moisture sensor the
MPC Pump Controller monitors the resistance between
the probe lead wires or the single probe lead wire and
ground. The resistance set point is adjustable over the
range of 10K to 500K Ω adjustable in 10K ohm steps,
and is set with Secondary menu items SFS1 and SFS2.
When the resistance of the moisture sensor decreases
below the resistance set point the MPC controller goes
into the programmed seal failure mode.

7

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In the Secure menu the value of PSF is programmed
for the action of the MPC based on the condition of a
seal failure. If set to ˝AUt0˝ when pump moisture sensor
indicates that there is a seal failure condition then
the corresponding pump seal failure lamp is lit on the
controller. The pump will remain in service with only the
lamp indication of failure. The lamp will be turned off
automatically when the seal failure condition has ceased.

If PSF is set to ˝rES˝ when pump moisture sensor
indicates that there is a seal failure condition then
the corresponding pump seal failure lamp is lit on the
controller. If the MPC is only being used with one pump
or being used with two pumps with the lead/lag function
turned off then no action is taken by the MPC with the
operation of the pumps. The failure indication lamp will
be manually reset as described in the next paragraph. If
the MPC is being used with two pumps with the lead/lag
function turned on then the failed pump will automatically
become the lag pump, the remaining pump will become
the lead pump, and the alternation will be discontinued.
The lamp indication and pump alternation can be
manually reset as described in the next paragraph.

Once the pump has been repaired the seal failure
action can be reset with the values of P1SF and P2SF in
the Secondary menu. The item P1SF or P2SF will display
FA1L if the corresponding pump has met the condition of
a seal failure. Press the ENTER key to reset. If the
pump moisture sensor is still in the fail condition then the
control will not reset. If the moisture sensor is no longer
in the fail condition then the display will revert to ˝----˝.

OVER TEMPERATURE OPERATION

Most pumps have an installed normally closed
thermostat for over temperature protection of the pump.
The thermostat has a preset value from the pump
manufacturer at which point the pump needs to be shut
down. The Mercoid® MPC detects when the thermostat
signal changes to open and shuts down the pump.

In the Secure menu the value of P0t is programmed for
the action of the MPC based on the condition of the
over temperature. When the pump temperature sensor
indicates that there is an over temperature condition the
pump will be held out of service and the corresponding
pump over temperature lamp is lit on the controller. If
using the MPC with two pumps with the lead/lag function
turned on then the failed pump will automatically be
taken out of service, the remaining pump will become
the lead pump, and the alternation will be discontinued.
When controlling two pumps with the lead/lag function off
the failed pump will automatically be taken out of service
and the remaining pump will be controlled by the SP1H and

SP1L set points.

If P0t is set to ˝AUt0˝ then the pump will be automatically
placed back into service and the lamp turned off when
the over temperature condition has ceased. If set to
˝rES ˝ then the pump will remain out of service and the
lamp lit until the corresponding manual reset P10t or
P20t is reset in the Secondary menu (described in the
next paragraph). The pump cannot be brought back into
service until the over temperature condition has ceased.

Once the pump has cooled down the MPC Pump
Controller can be reset with the values of P10t and
P20t in the Secondary menu. The item P10t or P20t will
display FA1L if the pump has met the condition of over
temperature. Press the ENTER key to reset. If the
pump temperature sensor is still in the fail condition then
the control will not reset. If the temperature input is no
longer in the fail condition then the display will revert to
˝----˝.

ANALOG RETRANSMISSION OPERATION

The analog retransmission allows the Process Variable
to be sent as an analog signal to an external device.
The signal may be either 2-10 VDC (option RV) or 4-20
mADC (standard). The output may be changed in the
eld from one to the other by the toggle switch located on
the top printed circuit board, factory standard is mADC.

Wire the output as shown on page 1.

To set up the analog retransmission, rst determine the
scale range that the analog signal will represent. The
maximum scale is 9999 counts. In the Secure menu
set P0L for the scale value that will be represented by
the low end of the analog signal (2 V or 4 mA). Set P0H
for the scale value that will be represented by the high
end of the analog signal (10 V or 20 mA). Operation
is automatic. There are no further programming steps
required. The values of P0L and P0H must be within the
programmed scale range. The scale range is set by the
SCAL and SCAH in the Secure menu.

PUMP RUN TIME OPERATION

The pump run time is indicated in hours of operation
since the last time that the run time meter was reset
for a specic pump. The Pump Run Time key on the
front of the unit will display run time for both pumps when
depressed. Run time for pump 1 is in the top display and
pump 2 is in the lower display. To reset the pump run
time go to the menu items P1rn and P2rn in the Secondary
Menu. When in the corresponding menu item hold the

ENTER button for approximately two seconds. The
display will blank out for about 1 second and the run time
will display 0. These menu items can be locked out by
the PrSt menu item in the Secure Menu.

OPTION 232, 485 SERIAL COMMUNICATION
OPERATION

The serial communications options allow the control to
be written to and read from a remote computer or other
similar digital device. Communication is allowed either
through a RS-485 (Option 485) port, or a RS-232 (Option

232) port.

Wire the communication lines as shown on page 5.
Wiring for the RS-485 is run from control to control in
a daisy chain fashion with a termination resistor (120
Ω) across the transmit and receive terminals of the last
control in the chain. Set the RS-485 DIP switch for half
or full duplex as appropriate for your application. The DIP
switch is located on the communications board plugged
into the center of the bottom board of the control.

Select the control address and communication baud
rate with the Addr and bAUd menu items in the Secure
Menu. THE BAUD RATE AND ADDRESS MENU ITEMS
WILL TAKE EFFECT ON THE NEXT POWER UP OF
THE CONTROL. BE SURE TO POWER CYCLE THE
CONTROL BEFORE USING THE NEW BAUD RATE
AND ADDRESS.

In operation, you have the option of preventing a write
command from the host computer. To prevent the host
from writing to the control change the L0rE menu item in
the Secondary Menu to L0C. To allow the host to write
commands to the control set L0rE to rE. (The host does
have the ability to change the L0rE state, but it is not
automatic.)

If your system depends on constant reading or writing
to and from the host, you may wish to set the No Activity
Timer (nAt) to monitor the addressing of the control.
When the L0rE is set to rE and the nAt is set to any value
other than 0FF, the control will expect to be addressed
on a regular basis. If the control is not addressed in the
time set by the value of nAt, then the control will display
the error message CHEC LorE. To clear the message set

L0rE to L0C.

8

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MENU SELECTIONS
Notation Conventions for the Menus

Because of the number of features available in this
control, information is included that may not apply to your
specic control. All usable features are included in this
book, but may not be used in your process. To increase
clarity the following conventions are used:

1. Certain features or functions shown in this book are
contextual. This means that Menu Items may or may
not appear, depending on other Menu Item
selections. Whenever this occurs, a notation is made
in the Menu Item that ˝controls˝ or ˝directs˝ other
menu items. If you are looking for a particular menu
item and can’t nd it, check the menu item that is its
˝control˝ for proper setting.

2. The ˝#˝ symbol is used in two ways. It is used inside
a group of characters to indicate which set point
function (SP1 or SP2) is being affected. It is also used
before a group of characters of a menu item to
indicate that there may be more than one selection or
value for that menu item.

Secondary Menu

Press the INDEX key for 2 seconds to start the menu.

Press INDEX to advance to the next menu item.
Press UP ARROW or DOWN ARROW to change

the value in the display. Press ENTER to retain the
value.

SP1H Pump 1 On Set Point. Factory Default 23.1 (feet).

SP1L Pump 1 Off Set Point. Factory Default 0.0 (feet).

SP2H Pump 2 On Set Point. Factory Default 23.1 (feet).

SP2L Pump 2 Off Set Point. Factory Default 0.0 (feet).

A1Hi Alarm 1 High: Factory Default 23.1 (feet).

A2Lo Alarm 2 Low: Factory Default 2.0 (feet).

SFS1 Pump 1 Seal Failure Set Point: Select 10 to 500

in any increment of 10. Sets the resistance set
point at which the controller will trip the Seal
Failure based on the input from the pump
moisture sensor. The controller will activate the
Seal Failure condition based on a decrease of
resistance to the set point. Selectable resistance
range is from 10K to 500K Ω with the factory
default at 120K Ω.

SFS2 Pump 2 Seal Failure Set Point: Select 10 to 500
in any increment of 10. Sets the resistance set
point at which the controller will trip the Seal
Failure based on the input from the pump
moisture sensor. The controller will activate the
Seal Failure condition based on a decrease of
resistance to the set point. Selectable resistance
range is from 10K to 500K Ω with the factory
default at 120K Ω.

P1rn Pump 1 Run Time: Total ON Time for Pump 1 in
HOURS since last reset (0000 - 9999 hours).

P2rn Pump 2 Run Time: Total ON Time for Pump 2 in
HOURS since last reset (0000 - 9999 hours).

P1SF Pump 1 Reset for Seal Failure. Displays ˝----˝
when pump 1 is in normal operating condition
based on seal failure input. Displays FA1L if
pump 1 has met the condition of a seal failure.
Press the ENTER key to reset. If pump 1 seal
failure is still in the fail condition then the control
will not reset. If the seal failure input is no longer
in fail condition then the display will revert to ˝----˝.

P2SF Pump 2 Reset for Seal Failure. Displays ˝----˝
when pump 2 is in normal operating condition
based on seal failure input. Displays FA1L if
pump 2 has met the condition of seal failure.
Press the ENTER key to reset. If pump 2 seal
failure is still in the fail condition then the control
will not reset. If the seal failure input is no longer
in fail condition then the display will revert to ˝----˝.

P10t Pump 1 Reset for Over Temperature. Displays
˝----˝ when pump 1 is in normal operating condition
based on temperature input. Displays FA1L if
pump 1 has met the condition of over temperature.
Press the ENTER key to reset. If pump 1
temperature input is still in the fail condition then
the control will not reset. If the temperature input
is no longer in fail condition then the display will
revert to ˝----˝.

P20t Pump 2 Reset for Over Temperature. Displays
˝----˝ when pump 2 is in normal operating
condition based on temperature input. Displays
FA1L if pump 2 has me the condition of over
temperature. Press the ENTER key to reset. If
pump 2 temperature input is still in the fail condition
then the control will not reset. If the temperature
input is no longer in fail condition then the display
will revert to ˝----˝.

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Secure Menu

Press the INDEX key for 5 seconds to start the menu.

Press INDEX to advance to the next menu item.
Press UP ARROW or DOWN ARROW to change

the value in the display. Press ENTER to retain the
value. OUTPUTS ARE DISABLED (TURNED OFF)
WHILE CONTROL IS IN THE SECURE MENU.

SECr Security Code: See the Security Level Selection
and the Password Table on page 7, in order to
enter the correct password. Factory Default is 4.

SCAH Scale High: Select 100 to 9999 counts above SCAL.
The total span between SCAL and SCAH must be
within 11998 counts. Maximum setting range is

-1999 to +9999 counts. Factory Default is 23.1.

SCAL Scale Low: Select 100 to 9999 counts below SCAH.

The total span between SCAL and SCAH must be
within 11998 counts. Maximum setting range is

-1999 to +9999 counts. Factory Default is 0.0.

dPt Decimal Point Positioning: Select 0, 0.0, 0.00, or

0.000. All Menu items related to the input will be
affected. Factory default is 0.0.

S1St Set Point 1 State: Select P1n or P0ut. Factory
default is P0ut.
P1n Pump In (Direct Action). As the input
increases the output will increase.
P0ut Pump Out (Reverse Action). As the input
increases the output will decrease.

S2St Set Point 2 State: Select P1n, P0ut or 0FF. Factory
default is P0ut.
P1n Pump In (Direct Action). As the input
increases the output will increase.
P0ut Pump Out (Reverse Action). As the input
increases the output will decrease.
0FF This setting is for applications when the
MPC is used with only one pump systems.
All Menu tems relating to Set Point 2 will not

appear.

LdL9 Lead / Lag: Select 0n or 0FF. Factory default is 0n.
(See page 7)
0n The Lead/Lag function is enabled. The outputs
of SP1 and SP2 will alternate.

0FF The Lead/Lag function is disabled.

1nPC Input Correction: Select ±500 counts. This feature

allows the input value to be changed to agree
with an external reference or to compensate for
sensor error. Note: 1nPC is reset to zero when
the input type is changed, or when decimal position
is changed.

0SUP Zero Suppression: Select 0n or 0FF. Factory default
is 0n.
0FF The input range will start at 0 (zero) Input.
0n The input range will start at 4.00 mA or 2.00 V.

1nP Input Type: Select one of the following. Refer to the
Input wiring section for the proper wiring. Factory
Default is Curr.

Curr DC Current Input 0.0 to 20.0 or 4.0 to 20.0
mA.
UoLt DC Voltage Input 0.0 to 10.0 or 2.0 to 10.0

volts.

- - - - Reserved

P0t Pump Over Temperature: Select AUt0 or rES.
When pump temperature sensor indicates that
there is an over temperature condition the pump will
be held out of service and the corresponding pump
over temperature lamp is lit on the controller. If
using the MPC with two pumps and lead/lag on
then the remaining pump becomes the lead pump.
If lead/lag is turned off then the remaining pump
becomes controlled by Set Point 1. See page 8.
AUt0 The pump will be automatically placed back
into service and the lamp turned off when
the over temperature condition has ceased.
rES The pump will remain out of service and the
lamp lit until the corresponding manual reset
P10t or P20t is reset in the Secondary menu.
The pump cannot be brought back into
service until the over temperature condition
has ceased.

PSF Pump Seal Failure: Select AUt0 or rES. See pages
7 and 8.
AUt0 When pump moisture sensor indicates that
there is a seal failure condition the
corresponding pump seal failure lamp is lit
on the controller. The pump will remain in
service with only the lamp indication of
failure. The lamp will automatically turn off
when failure condition ceases.
rES When pump moisture sensor indicates that
there is a seal failure condition the
corresponding pump seal failure lamp is lit
on the controller. If the MPC is being used
with two pumps and the lead/lag feature
turned on then the failed pump will
automatically become the lag pump, the
remaining pump the lead pump, and the
alternation discontinued. The seal failure
action is reset manually with the values of
P1SF and P2SF in the Secondary menu. The
control will only reset if the pump moisture
sensor is no longer in a failed condition.

tESt System Test: Select 0n or 0FF. When 0n is selected
the ˝System Test˝ key on the front panel will be
activated. By depressing this key for 3 seconds the
controller will simulate an input from SCAL to SCAH
and back to SCAL over a period of 32 seconds. This
test will run continuously until the SYSTEM TEST
key is pressed again. When the controller is in
System Test Mode the lamp above the System Test

Key will be ON.

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PrSt Pump Run Time Reset: Select 0n or 0FF. Selecting
0n will allow Pump Run Time to be reset in the
Secondary menu while an 0FF selection will not

allow Pump Run Time to be reset.

SPH Set Point High: Select from the highest input range
value to SPL value. This will set the maximum
SP1H or SP2H value that can be entered. The
value for SP1H or SP2H will stop moving when this
value is reached. Factory Default is 23.1.

SPL Set Point Low: Select from the lowest input range
value to SPH value. This will set the minimum SP1L
or SP2L value that can be entered. The value
for SP1L or SP2L will stop moving when this value
is reached. Factory Default is 0.0.

S2ti Setpoint 2 Time Delay. Select from 0 to 60 seconds.
Factory default is 0. This will set a time delay for
setpoint 2 on power up of the MPC that will assure
that setpoint 2 will not be brought into use until after
the programmed time delay.

PEA The Peak feature stores the highest input the
control has measured since the last reset or Power
On. At Power On PEA is reset to the present input.
To manually reset the value PEA must be in the
lower display. Press the ENTER key to reset.
PEA will be reset and display the present input
value.

UAL The Valley feature stores the lowest input the
Controller has measured since the last reset or
Power On. At Power On UAL is reset to the present
input. To manually reset the value UAL must be in
the lower display. Press the ENTER key. UAL
will be reset and display the present input value.

ALARM TYPE AND ACTION

Caution: In any critical application where failure could
cause expensive product loss or endanger personal
safety, a redundant limit controller is required.

CAUTION

the alarm is to occur.

When setting the alarm value for a deviation alarm (A1t
= dE or A2t = dE), set the difference in value from the Set
Point (SP1H) desired.

Since the input for the MPC is driven from a transmitter,
the input display can be programmed in different ways.
Regardless of the position of the decimal point, a change
of one in the right most digit is referred to as a count.
For example, if there were no decimal point selected, a
change from 235 to 236 is a change of one count. If the
decimal point were selected at 0.0, a change of 23.5 to

23.6 is a change of one count.

When setting up an alarm for deviation the deviation is
set in counts. For example if a low alarm is required to
be 5 counts below the SP1H, then set A#Lo to -5. If a high
alarm is required 20 counts above the SP1H, then set A#Hi
to +20. If SP1H is changed, the alarm will continue to hold
the same relationship as originally set.

When Alarm Power Interrupt, A#P, is programmed ON
and Alarm Reset, A#rE, is programmed for Hold, the
alarm will automatically reset upon a power failure and
subsequent restoration if no alarm condition is present.

If Alarm Inhibit, A#iH is selected ON, an alarm condition
is suspended upon power up until the process value
passes through the alarm set point once. Alarm inhibit
can be restored as if a power up took place by pressing
both the INDEX and ENTER keys for 5 seconds.

When setting an alarm value for an
absolute alarm (A1t = AbS or A2t =
AbS), simply set the value at which

WARNING

HIGH ALARM, RESTORATION OF POWER WILL NOT
CAUSE THE ALARM TO OCCUR IF THE PROCESS
VALUE DOES NOT FIRST DROP BELOW THE HIGH
ALARM SETTING. DO NOT USE THE ALARM INHIBIT
FEATURE IF A HAZARD IS CREATED BY THIS
ACTION. BE SURE TO TEST ALL COMBINATIONS OF
HIGH AND LOW ALARM INHIBIT ACTIONS BEFORE
PLACING CONTROL INTO OPERATION.

The following menu items apply only to the alarms.

AL1 Alarm 1 function: Select 0FF, Lo, Hi, or HiLo. Factory
default is Hi.
0FF Alarm 1 is disabled. No Alarm 1 menu items
appear in the Secondary or Secure menus.
Lo Low Alarm Only. A1Lo appears in the Secondary
Menu.
Hi High Alarm Only. A1Hi appears in the
Secondary Menu.
HiLo High and Low Alarms. Both A1Lo and A1Hi
appear in the Secondary Menu, and share the

same Alarm 1 Relay output.
SF Seal Failure ONLY will trigger Alarm.
0t Over Temperature Failure ONLY will trigger
Alarm
SF0t Both Seal Failure and Over Temperature

Failure will trigger Alarm.

With the Alarm Function settings on 0FF, SF, 0t, SF0t
certain alarm related menu items will disappear as those
menu items do not apply.

A1t Alarm 1 Type: Select AbS or dE. Factory default is
AbS.
AbS Absolute Alarm that may be set anywhere

within the values of SCAL and SCAH and is
independent of SP1H.
dE Deviation Alarm that may be set as an offset
from SP1H. As SP1H is changed the Alarm Point
will track with SP1H.

A1rE Alarm 1 Reset: Select 0n0F or HoLd. Factory default
is 0n0F.
0n0F Automatic Reset.
HoLd Manual Reset. Reset (acknowledge) by

simultaneously pressing the INDEX and
DOWN ARROW keys for 5 seconds.

A1Pi Alarm 1 Power Interrupt: Select 0n or 0FF. Factory
default is 0FF.

0n Alarm Power Interrupt is 0n.
0FF Alarm Power Interrupt is 0FF.

A1iH Alarm 1 Inhibit: Select 0n or 0FF. Factory default is
0FF.
0n Alarm Inhibit is 0n. Alarm action is suspended

until the process value rst enters a non-alarm
condition.

0FF Alarm Inhibit is 0FF.

A1St Alarm 1 Output State: Select CL0S or 0PEn. Factory

default is CL0S.
CL0S Closes Contacts at Alarm Set Point.
0PEn Opens Contacts at Alarm Set Point.

A1LP Alarm 1 Lamp: Select 0 on or 0oFF. Factory default is
0 on.
0 on Alarm Lamp is ON when alarm contact is

closed.
0oFF Alarm Lamp is OFF when alarm contact is
closed.

IF INHIBIT IS ON AND A POWER
FAILURE OCCURS DURING A

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A1td Alarm 1 Time Delay: Select 0FF or 1 to 8000

seconds. Factory default is 0FF.
0FF Alarm function will operate when triggered at

programmed Alarm Set Point.
1-8000 Alarm function will only operate once the
programmed time has elapsed after the
alarm was triggered by the Alarm Set Point.
AL2 Alarm 2 function: Select 0FF, Lo, Hi, HiLo, SF, 0t, or

SF0t. Factory default is Lo.
0FF Alarm 2 is disabled. No Alarm 2 menu items

appear in the Secondary or Secure menus.
Lo Low Alarm Only. A2Lo appears in the
Secondary Menu.
Hi High Alarm Only. A2Hi appears in the
Secondary Menu.
HiLo High and Low Alarms. Both A2Lo and A2Hi
appear in the Secondary Menu, and share
the same Alarm 2 Relay output.

SF Seal Failure ONLY will trigger Alarm.
0t Over Temperature Failure ONLY will trigger
Alarm
SF0t Both Seal Failure and Over Temperature

Failure will trigger Alarm.

With the Alarm Function settings on 0FF, SF, 0t, SF0t
certain alarm related menu items will disappear as those
menu items do not apply.

A2t Alarm 2 Type: Select AbS or dE. Factory default is
AbS.
AbS Absolute Alarm that may be set anywhere

within the values of SCAL and SCAH and is
independent of SP1H.
dE Deviation Alarm that may be set as an offset
from SP1H. As SP1H is changed the Alarm Point
will track with SP1H.

A2rE Alarm 2 Reset: Select 0n0F or HoLd Factory default
is 0n0F.
0n0F Automatic Reset.
HoLd Manual Reset. Reset (acknowledge) by

simultaneously pressing the INDEX and
DOWN ARROW keys for 5 seconds.

A2Pi Alarm 2 Power Interrupt: Select 0n or 0FF. Factory
default is 0FF.

0n Alarm Power Interrupt is On.
0FF Alarm Power Interrupt is OFF.

A2iH Alarm 2 Inhibit: Select 0n or 0FF. Factory default is
0FF.
0n Alarm Inhibit is On. Alarm action is suspended

until the process value rst enters a non­ alarm condition.

0FF Alarm Inhibit is OFF.

A2St Alarm 2 Output State: Select CL0S or 0PEn. Factory

default is CL0S.
CL0S Closes Contacts at Alarm Set Point.
0PEn Opens Contacts at Alarm Set Point.

A2LP Alarm 2 Lamp: Select 0 on or 0oFF. Factory
default is 0 on.
0 on Alarm Lamp is ON when alarm contact is
closed.
0oFF Alarm Lamp is OFF when alarm contact is
closed.

A2td Alarm 2 time Delay: Select 0FF or 1 to 8000 seconds.
Factory default is 0FF.
0FF Alarm function will operate when triggered at
programmed Alarm Set Point.
1-8000 Alarm function will only operate once the
programmed time has elapsed after the
alarm was triggered by the Alarm Set Point.

FiLt Digital Filter: Select 0FF or 1 to 99. In some cases
the time constant of the sensor, or noise could
cause the display to jump enough to be unreadable.
If this value is set too high, controllability will suffer.
Factory default is 3.

P0H (Analog Retransmission Output, see page 8)
Process Output High: Select from any value greater
than P0L to 9999 counts. Factory default is 23.1.

P0L (Analogw Retransmission Output, see page 8)
Process Output Low: Select -1999 counts to any
value less than P0H. Factory default is 0.0.

The remaining menu items appear if the corresponding
option was purchased with the control.

L0rE (Option 232 and 485, Serial Communications)
Local / Remote Status: Select L0C or rE. Factory
default is rE.
L0C The host computer is advised not to send
remote commands. Any write commands
sent to the controls will be rejected.
rE The host computer is allowed to send
write commands. If the control is not
addressed within the time set in the nAt (No
Activity Timer, see Secure Menu) the CHEC

L0rE error message will be displayed.

Addr (Option 232 or 485, Serial Communications)

Control Address: Set from 1 to 99. This number
(hexadecimal, base 16) must match the address
number used by the host computer. Factory default
is 32.

bAUd (Option 232 or 485, Serial Communications)
Communication Baud Rate: Select 300, 1200, 2400,
4800, 9600, or 19200. This number must match the
baud rate used by the host computer. Factory
default is 9600.

nAt (Option 232 or 485, Serial Communications) No
Activity Timer: Set from 0FF or 1 to 99 minutes.
Factory default is 0FF.
1-99 Maximum time between host computer
accesses. If timer counts to 0, CHEC / L0rE will
be displayed.

0FF No Activity Timer function is disabled.

Stor (Option 232 or 485, Serial Communications) Store

to EEPROM: Select Yes or no.
YES Menu item changes made through serial

communications are stored directly to
EEPROM.
no Menu item changes made through serial
communications are stored in RAM.
(Settings are lost if power is disconnected)

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DIAGNOSTIC ERROR MESSAGES
Display Meaning SP Outputs Action Required

No display
lighted

FA1L
tESt

CHEC
LorE

UFL or 0FL

CHEC CAL

ArEA

(Alternates
with PV)

ArEA

Display is blank. Instrument is
not getting power, or the supply
voltage is too low.

Fail test appears upon power
up if the internal diagnostics
detect a failure. This message
may occur during operation if
a failure is detected. Displays
ash.

This message appears if the
Serial Communications has
timed out.

Underow or Overow: Process
value has exceeded input range
ends.

Check calibration appears as
an alternating message if the

instrument calibration nears

tolerance edges.
Check calibration appears
as a ashing message if the
instrument calibration exceeds
specication.

This message appears if the
ambient temperature of the
control approaches the ends
of tolerance. This message
appears if the ambient
temperature of the control is
out of range or RJC sensor is
broken.

Set point

outputs inactive
Alarms inactive

Set point

outputs inactive
Alarms inactive

Set point

outputs active
Alarms inactive

Set point

outputs active
Alarms active

Set point

outputs active
Alarms active

Set point
outputs

inactive
Alarms active

Set point

outputs active
Alarm active

Set point

outputs active
Alarms active

Check that the power supply is on, or that the
external fuses are good.

The display alternates between FA1L tESt and
one of the following messages: FACt dFLt:
Memory may be corrupted. Press the ENTER
key and the DOWN ARROW key to start the
factory default procedure. Recheck controller
programming. rEt FACt: Unrecoverable error,
return to factory for service.

Restore the communications line and switch
the LorE to L0C.

Input signals may normally go above or below
range ends. If not, check input and correct.

Remove the instrument for service and / or
recalibration. To reset use the INDEX and
ENTER keys.

Remove the instrument for service and / or
recalibration. To reset use the INDEX and
ENTER keys.

Correct the ambient temperature conditions.
Ventilate the area of the cabinet or check for
clogged lters. If RJC broken, return to factory
for service.
Correct the ambient temperature conditions.
Ventilate the area of the cabinet or check for
clogged lters. If RJC broken, return to factory
for service.

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PROGRAMMING CHART

Use the charts on this and the next page to record the values in your application. You may want to photocopy the pages
if you plan to make programming changes.

Menu Item Default Set At Description

Primary

Secondary

Secure

PV SP1H
SP1H

SP1L
SP2H
SP2L
A1Hi
A2Lo
SFS1
SFS2
P1rn
P2rn
P1SF
P2SF
P1OT
P2OT

SECr
SCAH
SCAL
dPt
S1St
S2St
LdLg
InPC
OSUP
InP
POt
PSF
tESt
PrSt
SPH
SPL
S2ti
PEA
UAL
ALI
AIt
AIrE
AIPi
AIiH
AISt
AILP
AItd
AL2
A2t
A2rE
A2P
A2iH
A2St
A2LP
A2td
FILt
POH
POL
LorE
Addr
bAUd
nAt
Stor

23.1

0.0

23.1

0.0

23.1

2.0
120
120

xxxx
xxxx

----

----

----

----

4

23.1

0.0

0.0
POut
POut
On

0.0
On
Curr
AUTO
AUTO
On
On

23.1

0.0
0

XX
XX

Hi
AbS
OnOF
OFF
OFF
CLOS
0on
OFF
L0
ABLS
OnOF
OFF
OFF
CLOS
Oon
OFF
3

23.1

0.0
rE
32
9600
OFF
YES

Home Position, Process Variable and SP1H’s Value displayed
Set Point 1 value (default is in feet)

Set Point 1 off value (default is in feet)
Set Point 2 value (default is in feet)
Set Point 2 off value (default is in feet)
Alarm 1 (high) value (default is in feet)
Alarm 2 (low) value (default is in feet)
Pump 1 Seal Failure Set Point
Pump 2 Seal Failure Set Point
Total ON Time for Pump 1 in HOURS since last reset
Total ON Time for Pump 2 in HOURS since last reset
Pump 1 Reset for Seal Failure (---- or FAIL)
Pump 2 Reset for Seal Failure (---- or FAIL)
Pump 1 Reset for Over Temperature (---- or FAIL)
Pump 2 Reset for Over Temperature (---- or FAIL)

Security Selection

Scale High value (default is in feet)
Scale Low value (default is in feet)
Decimal Point Positioning
Set Point 1 State (selectable POut (Pumping Out) or PIn (Pumping In))
Set Point 2 State (selectable POut (Pumping Out), PIn (Pumping In), or off)
Lead/Lag (selectable on or off)
Input Correction
Zero Suppression (selectable on or off)
Input (selectable current or voltage)
Pump Over Temperature controller action (selectable automatic or manual
reset)
Pump Seal Failure controller action (selectable automatic or manual reset)
System Test (Selectable on or off)
Pump Run Time Rest (Selectable on or off)
Set Point High value (default is in feet)
Set Point Low value (default is in feet)
Peak, highest input value seen since last reset
Valley, lowest input value seen since last reset
Alarm 1 Function (selectable off, lo, hi, hilo, sf, ot, or sfot)
Alarm Type 1 (selectable abs (absolute) or de (deviation))
Alarm 1 Reset (selectable onof (auto) or hold (manual)
Alarm 1 Power Interrupt (selectable on or off)
Alarm 1 Inhibit (selectable on or off)
Alarm 1 Output State (selectable close or open)
Alarm 1 Lamp condition when contact is closed (selectable on or off)
Alarm 1 Time Delay (selectable off or 1 to 8000 s)
Alarm 2 function ( selectable off, lo, hi, hilo, sf, ot, or sfot)
Alarm 2 Type (selectable abs (absolute) or de (deviation))
Alarm 2 Reset (selectable onof (auto) or hold (manual))
Alarm 2 Power Interrupt (selectable on or off)
Alarm 2 Inhibit (selectable on or off)
Alarm 2 Output State (selectable close or open)
Alarm 2 Lamp condition when contact is closed (selectable on or off)
Alarm 2 Time Delay (selectable Off or 1 to 8000 s)
Digital Filter
Process Output High (default is in feet)
Process Output Low (default is in feet)
Local/Remote for computer communications
Control Address for computer communications
Baud Rate for computer communications
No Activity Timer for computer communications
Store Menu for Hi speed writes (selectable yes or no)

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PROGRAMMING EXAMPLE

M

MPC

PBLT OR LEVEL TRANSMITTER

EXAMPLE PROGRAMMING CHART

Menu Item Default Set At Description

Secondary

Secure

SP1H
SP1L
SP2H
SP2L
A1Hi
A2Lo
SFS1
SFS2
P1rn
P2rn
P1SF
P2SF
P1OT
P2OT

ALI
ALt
AIrE
AIPi
AIiH
AISt
AILP
AItd
AL2
A2t
A2rE
A2Pi
A2iH
R2St
A2LP
A2td
FILt
POH
POL

23.1

0.0

23.1

0.0

23.1

2.0
120
120
xxxx
xxxx

----

----

----

---­Hi

AbS
OnOF
OFF
OFF
CLOS
Oon
OFF
Lo
AbS
OnOF
OFF
OFF
CLOS
Oon
OFF
3

23.1

0.0

Set Point 1 value (default is in feet)

6.0

Set Point 1 off value (default is in feet)

3.0

Set Point 2 value (default is in feet)

12.0

Set Point 2 off value (default is in feet)

9.0

Alarm 1 (high) value (default is in feet)

20.0

Alarm 2 (low) value (default is in feet)

1.0

Pump 1 Seal Failure Set Point

120

Pump 2 Seal Failure Set Point

120

Total ON Time for Pump 1 in HOURS since last reset
Total ON Time for Pump 2 in HOURS since last reset
Pump 1 Reset for Seal Failure (---- or FAIL)
Pump 2 Reset for Seal Failure (---- or FAIL)
Pump 1 Reset for Over Temperature (---- or FAIL)
Pump 2 Reset for Over Temperature (---- or FAIL)

Alarm 1 Function (selectable off, lo, hi, hilo, sf, ot, or sfot)

Hi

Alarm Type 1 (selectable abs (absolute) or de (deviation))

AbS

Alarm 1 Reset (selectable onof (auto) or hold (manual))

OnOF

Alarm 1 Power Interrupt (selectable on or off)

OFF

Alarm 1 Inhibit (selectable on or off)

OFF

Alarm 1 Output State (selectable close or open)

CLOS

Alarm 1 Lamp condition when contact is closed (selectable on or off)

Oon

Alarm 1 Time Delay (selectable off or 1 to 8000 s)

OFF

Alarm 2 function ( selectable off, lo, hi, hilo, sf, ot, or sfot)

Lo

Alarm 2 Type (selectable abs (absolute) or de (deviation))

AbS

Alarm 2 Reset (selectable onof (auto) or hold (manual))

OnOF

Alarm 2 Power Interrupt (selectable on or off)

OFF

Alarm 2 Inhibit (selectable on or off)

OFF

Alarm 2 Output State (selectable close or open)

CLOS

Alarm 2 Lamp condition when contact is closed (selectable on or off)

Oon

Alarm 2 Time Delay (selectable Off or 1 to 8000 s)

OFF

Digital Filter

3

Process Output High (default is in feet)

25.0

Process Output Low (default is in feet)

0.0

HIGH LEVEL ALAR

START 2

STOP 2

START 1

STOP 1

LOW LEVEL ALARM

Example:

• Keep Empty, two pump (duplex)

• Depth 25 feet

• Pump 1: Start at 6 feet
Stop at 3 feet
Pump 2: Start at 12 feet
Stop at 9 feet

• Low level alarm: 1 foot, xed,

auto reset

• High level alarm: 20 feet, xed,

auto reset

• Want Lead/Lag function on

• Automatic reset of pump over .
temperature and seal failure

• No communication options

• Want 4-20 mA retransmission

• Using with a 4-20 mA input.

15

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NOTES

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Modbus® is a registered trademark of Schneider Automation, Inc.

©Copyright 2020 Dwyer Instruments, Inc. Printed in U.S.A. 12/20 FR# 443247-00 Rev. 6

16

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