Warrick® Series DMS-470/570
Montoring Panels
Installation and Operation Bulletin

Table of Contents

Page 2

Installation Instructions: Safe Sensing Circuits- Mounting Location- Wiring: General Information

Page 3

Installation Instructions: Safe Sensing Circuits- Wiring Diagrams

Page 4

Operation Instructions- Control Panel Settings- Setting the DIP switches

Page 5

Operation Instructions- Adjusting the Set Point Potentiometer- Adjusting the Set Point Position: SVP-2 Sensor Only

Page 6

Technical Information- Ordering Information- Specifications

Page 7

Technical Information- Module Replacement

Page 8Operation Instructions- Panel Operation- Fuel/Water Pushbutton Operation- Troubleshooting Guide

Page 9Sample Wiring Diagram- DMS-474-A-2 / DMS-574-A-2

Page 10

Sample Wiring Diagram- DMS-478-A-1 / DMS-578-A-1

Page 11

Panel Dimensions- DMS-474-A-DMS-478-A

Page 12

Panel Dimensions- DMS-574-A-DMS-578-A

Form 725-B
Sheet P/N 7800824
Rev. AInstallation: Intrinsically Safe Sensing Circuits
This bulletin should be used by experienced personnel as a guide to the installation of the Series DMS-470/570 alarm
panels. Selection or installation of equipment should always be accompanied by competent technical assistance. We
encourage you to contact Warrick or its local representative if further information is required.
Important
Before proceeding to install and wire the control panel,read and thoroughly understand these instructions.
When the Series DMS 470/570 Monitoring Panel is installed according to these instructions, the panel will provide
intrinsically safe sensing circuits for interface into Class I, II. Division 1, Groups C, D, E, F and G hazardous locations. Electrical equipment connected to Series DMS 470/570 Monitoring Panel should not exceed maximum ratings
marked on product.
Mounting Location
The control must be situated in a non-hazardous area where an explosive atmosphere will not exist at any time.
Wiring: General Information
1. Intrinsically safe wiring must be kept separate from non-intrinsically safe wiring.
2. Intrinsically safe and non-intrinsically safe wiring may occupy the same enclosure or raceway if they are at least 2
inches (50mm) apart and separately tied down. Inside panels, field wiring terminals for intrinsically safe circuits
must be separated by at least 2 inches (50 mm) from non-intrinsically safe terminals.
3. For sensor wiring, use #14 or #16 AWG type MTW or THHN wire. By using these wire types in conjunction withthe following distance recommendations, you will not exceed the maximum capacitance for field wiring.
Use Table 1 as a guide for maximum wire runs.
Table 1Model No.
DMS470/570
DMS470/570

Number of Sensor Wires
All 2 Wire Sensors
All 3 Wire Sensors

Distance Per Channel
900 Feet
450 Feet

4. Intrinsically safe terminals can be connected to any non-energy generating or storing switch device such as apushbutton, limit or float type switch or any Warrick electrode and fitting assembly.
5. All junction boxes and field wire terminations should be waterproof. Refer to appropriate sensor instructions fordetails on how to install sensors.
6. An approved seal should be used at the point where the intrinsically safe control circuit wiring enters the hazardous area.
7. For additional guidance on “Hazardous Location Installation” and “Intrinsically Safe Devices”, consult ANSI/ISA
standard RP 12-6 or NEC articles 500-516.

Sensor Wiring
Sensors: Wire the sensor devices to the Series DMS 470/570 Monitoring Panel as shown in figure 3-1 to 3-4. (Aseparate rigid metallic conduit must be used to enclose the conductors of the intrinsically safe sensor
circuit. A conduit hub is provided on the bottom side of the enclosure for intrinsically safe wiring.)

2

Installation: Intrinsically Safe Sensing Circuits
Se
ns
or
#1
Se
ns
or
#2
Se
ns
or
#3
Se
ns
or
#4

Enclosure

Figure 3-1
Sensor #1

G1

S1 G1 S2 G2 S3 G3 S4 G4

(RED)

(BLK)

S1

SIL

TEST

2 Wire Sensor

Conduit Hub for
Sensor Wires ONLY!

Two (2) wire sensor connections for standard terminals

Sensor #1(RED)

COMMON

(GRN)

WATER

S2

G1

(BLK)

FUEL

S1

Se
ns
or
#2

Se
ns
or
#1

Enclosure

Figure 3-2

S1 G1 S2 G2 S3 G3 S4 G4

SIL

TEST

3 Wire Sensor

Conduit Hub for
Sensor Wires ONLY!

Three (3) wire sensor connections for standard terminals

For those models using the optional “check” push buttons, wire sensors per Figures 3-3 and 3-4.

Sensor #1

W1

(BLK)

(RED)

C1

F1

Se
ns
or
#3
Se
ns
or
#4

Se
ns
or
#1
Se
ns
or
#2

Enclosure

Figure 3-3

F1 C1 W1 F2 C2 W2 F3 C3 W3 F4 C4 W42 Wire Sensor

Conduit Hub for
Sensor Wires ONLY!

Two (2) wire sensor connections for Fuel/Water terminals

Se
ns
or
#1
Se
ns
or
#2

C1

W1

COMMON

WATER
(RED)

(GREEN)

F1
FUEL
(BLK)

Sensor #1

Se
ns
or
#3
Se
ns
or
#4

Enclosure

Figure 3-4

F1 C1 W1 F2 C2 W2 F3 C3 W3 F4 C4 W43 Wire Sensor

Three (3) wire sensor connections for Fuel/Water terminals

Conduit Hub for
Sensor Wires ONLY!

3

Operation Instructions
Control Panel Settings
Before putting system into operation, DIP switches and potentiometers (set point) must be set to correctly match thetype of sensor you are using. (Ref to Table 4-1). The DIP switches and potentiometers are located above the sensor
terminal strip. (Figure 4-1)

DIP SWITCHESINVERSE

INVERSEMIN 1 MAX
SETPOINT

S1

1 DIRECT 2

G1

S2

G2

MIN 2 MAX MIN 3 MAX
SETPOINT SETPOINT

S3

G3

S4

3 DIRECT 4G4

MIN 4 MAX
SETPOINT

SILENCETESTSENSOR CONNECTIONSFIELD WIRINGTERMINAL STRIP

Figure 4-1

Setting the DIP Switches
Table 4-1describes applications vs. DIP switch settings. Each channel will have its own setting corresponding to the type of
sensor being used.
Table 4-1
APPLICATION
Double Wall Fiberglass
Fuel Sensing
Double Wall Fiberglass
Water Sensing
Double Wall SteelHydrocarbon/Water Sensing
Double Wall Steel
Liquid Sensing
Product Level Alarm(Normally Closed Float)
Product Level Alarm(Normally Open Float)
Monitoring Well
(Hydrocarbon Vapor)
Detector
Unused Channel
Unknown

Unknown

4

WARRICKSENSOR
DFP-25ACTIVATIONCONDITION
Closes on Detecting FuelDIP SWITCHSETTING
Inverse (“ON”)

SET POINT
ADJUSTMENTNA

DWP-25Inverse (“ON”)

NA

Inverse (“ON”)

NA

Inverse (“ON”)

NA

LS-700/800

Closes on Detecting
Water
Closes on Detecting
Hydrocarbon or Water
Closes on Detecting
LiquidOpens on Rising Level

Direct (“OFF”)

LS-700/800

Closes on Rising Level

Inverse (“ON”)

See Instructions on
set point setting
NA

SVP-2

Resistance Increases
on Detecting Vapors

Direct (“OFF”)

See Instructions on
set point setting

NA

Inverse (“ON”)

NA

Closed on Fault

Inverse (“ON”)

NA

Open on Fault

Direct (“OFF”)

Consult Factory

DSP-2
DLP-2

None
Unknown
Normally
Open Switch
Unknown
Normally
ClosedSwitch

Operation Instructions
Adjusting the Set Point Potentiometer
DIP Switch Set In Inverse (ON) Mode: When using a channel in Inverse(ON), there is no need to adjust the potentiometer. The channel is automatically set to the maximum sensitivity.
DIP Switch Set In Direct (OFF) Mode: Turn the potentiometer clockwise until it reaches the end of its rotation. Do notforce the rotation. When the potentiometer is adjusted to this position, it is set to the maximum sensitivity. When using
SVP-2 Vapor Sensors, it may be necessary to reduce this sensitivity. Continue with the following instructions.
The Following Adjustment Applies only to those channels using an SVP-2 Vapor Sensor.
This adjustment will allow the alarm point to be set at a level just higher than the existing background contamination, thus
only indicating a potential new leak or spill condition.
CAUTION: As the Vapor sensor reacts over time (Months) to background (Existing) contamination, a false alarm
may occur. If this occurs, repeat the adjustment procedure.
1. With all appropriate potentiometers set to fill clockwise position, apply power to the panel and observe the state of theindicator lights. Silence the audible alarm if necessary.
2. Upon power-up, no warning lights (audible alarm) should be on. If the warning lights are lit, proceed to step 3. Startingwith the first channel using a vapor sensor, turn the potentiometer counter-clockwise until the warning light turns on.
(silence the audible alarm) Turn the potentiometer clockwise until the alarm light turn off. Turn the potentiometer an
additional 1/8 turn. Repeat this procedure for the remaining channels using vapor sensors.
3. If an alarm light remains lit, determine which channel is activated. Check the position of the DIP switch for the sensor
being used on that channel. Check the sensor wiring. Check for a true fault condition. Refer to troubleshooting guide forfurther details.

Warning Light Off(Step #3)
Warning Light On(Step #2)
Start
(Step #1)

Additional 1/8 Turn
(Step #2)

Full Clockwise position

Supply PowerA weatherproof conduit hub is provided on the top of the enclosure for supply power wiring. Connect the incoming supply
HOT lead to the L 1 terminal, NEUTRAL lead to the L2 terminal and EARTH GROUND lead to the “G” Terminal.
GroundingTerminal “G” on the supply line/load side terminal strip is a redundant system ground terminal and must be connected tothe earth ground buss of the panel’s AC supply line feeder.
Remote Alarm Contact
A set of SPDT dry contacts activates on fault when any one of the four (4) channels alarms. Using the conduit hub on
the top of enclosure, wire contacts to remote alarm or indicator, if applicable (terminals 7,8 and 9). For low voltage
circuits, wiring should not be run in the same conduit as high voltage circuits. Conduit should be teed immediately after
leaving enclosure.
Optional Auxiliary Contact Board
A SPDT auxiliary set of contacts are available for interfacing to remote alarms, computers, tank gauging systems, etc.
One set of contacts per channel are provided. Wire through conduit hub on top of the enclosure. (See Figure 9-1)
5

Technical Information

Ordering Information

GeneralOne set of auxiliary contacts is standard with every (4) four channels supplied. A common test button is included as standard
for every (4) four channels supplied. The Fuel/Water check buttons listed below are used to distinguish water or hydrocarbon
when three1 wire sensors are used.
DMS-47X-X-X-X
DMS-57X-X-X-X

NO. OF CHANNELS
1
2
3
4
8
12

1 CHANNEL
2 CHANNELS
3 CHANNELS
4 CHANNELS
8 CHANNELS
12 CHANNELS

FUEL / WATER CHECKPUSH BUTTONS
A
B
C
D
F
G
H

NO CHECK BUTTONSCHECK BUTTONS 1-4
CHECK BUTTONS 1-8
CHECK BUTTONS 1-12
CHECK BUTTONS 1
CHECK BUTTONS 1-2
CHECK BUTTONS 1-3

ENCLOUSUREAUXILIARY CONTACTS
1
2
3
4
6
7
8

NO AUX. CTS.
AUX. CTS. 1-4
AUX. CTS. 1-8
AUX. CTS. 1-12
AUX. CTS. 1
AUX. CTS. 1-2
AUX. CTS. 1-3

N4
N4XFG

NEMA 3R
NEMA 4
NEMA 4X FIBERGLASSSpecifications
Primary AC Supply Line: 120 VAC (plus)+ 10%, (minus) -15%, 50/60 Hz.
Probe Voltage: Nominal 12 VAC @ 6ma RMS
Sensitivity Range: 0 -50,000 Ohms maximum specific resistance
Temperature: (minus) -400 to (plus) +150° F
Remote Alarm Contact: (Terminals 7 N.C., 8 com & 9 N.O.)
Contact Design: SPDT (1 form C): one normally open (N.O.) and one normally closed.
Contact Ratings: 120 VAC or 30 VDC, 5A 1/10 H.P.
Contact Life: Electrical @ rated load = 100,000 cycles minimum. Mechanical = 10 million cycles minimum.
Electronics Module: Solid state components epoxy encapsulated in a black nylon shell
Module Terminals:
Screw Terminal Torque Rating: 5 -6 Inch/ Pounds
Field Wiring: Removable terminal strip, containing a size 4 (four) pan head screw with a clamping plate.
Will accept up to one #14 AWG wires per terminal.
Factory Wiring: Removable terminal strip will accept up to one #14 AWG wires per terminal.
Optional Auxiliary Board:
Auxiliary Contacts: One relay contact per channel.
Contact Design: SPDT (1 form C): one normally open (N.O.) and one normally closed (N.C)
Contact Ratings: 120 VAC or 30 VDC, 10A 1/3 H.P.
Contact Life: Electrical @ rated load = 100,000 cycles minimum. Mechanical = 10 million cycles minimum.
Auxiliary Board Terminals:
Field Wiring: Removable terminal strip will accept up to one #14 AWG wire per terminal.
Auxiliary Board Connection: Eight (8) pin wire harness connector.
Optional “Check” Pushbutton Board:
Terminals: Size four (4) pan head screw with a clamping plate, will accept up to one #14 AWG wire perterminal. “Check” pushbutton board and module strip should be removed as an assembly from electronic
module.
6

Technical Information

Module Replacement
If the electronic module needs to be replaced:
1. Turn off power to the control panel.
2. Remove the metal barrier located across the center of module.
3. Remove all field wiring terminal blocks from the electronic module. The field wires do not need to be removed
from the terminal blocks to do this. The terminal blocks separate at midpoint on the vertical as shown in
Figure 7-1.
Field Wiring
Terminal Block

Module Replacement Diagram

Terminal Strip
RemovalFactory Wiring
Terminal Block
Terminal Strip
RemovalRemovable Terminal Strips

Separation
Point

Factory Wiring

Field Wiring

Figure 7-1
4. Remove the factory wiring terminal blocks from the electronic module. The factory wiring does not have to be
removed to do this. The terminal blocks separate from the module at the board surface as shown in Figure
7-1.
5. Remove the four (4) machine screws from the base of the electronic module. The module can now be
removed from the control panel.
6. Replacement Module: 47D1 BXXX
7. Install a new module and reinstall all of the terminal blocks. Make sure that all factory and field wiring is inplace.
8. Reinstall the metal barrier across the center of the module.
9. Set all DIP switches and potentiometers according to previous instructions.

7

Operation Instructions
Panel Operation:
With sensors wired to control panel and power applied, the normal light (yellow) should be lit. Individual warning
lights (amber) are provided for each channel. If a sensor detects a fault condition, the normal light will deenergize. The appropriate warning light will then energize and the audible alarm will sound. To silence thealarm, push the SILENCE pushbutton. The WARNING light will remain lit until the fault condition is cleared. If a
second fault occurs before the first fault is cleared, the appropriate WARNING light will energize and the alarm
will sound. Each successive fault will cause the alarm to sound.
A TEST button is supplied to test the circuitry in the panel. To perform a test, push the TEST pushbutton andhold. The NORMAL light will go off. All WARNING lights in that bank will light and the alarm will sound.
Releasing the TEST pushbutton will return the system to a normal condition.
All panels contain a master fault contact, which will activate if any one of the channels sees a fault condition.
This can be used to trigger a remote alarm or cash register. The master fault contact will reset when the
SILENCE pushbutton is pressed.
If optional auxiliary contacts are used, a SPDT dry contact is provided for each channel. To reset these contacts,
the fault condition must be cleared.

Fuel/ Water Pushbutton Operation:
If the audible alarm is energized, it can be silenced by momentarily depressing the SILENCE pushbutton.
However, to determine if this is a FUEL or WATER leak, continue with the following instructions.
1. WATER PUSHBUTTON: (When audible alarm is already silenced.) Momentarily depress the WATER pushbutton. If, after
release of the button the audible alarm energizes, this indicates a water leak. The audible alarm can be silenced again bydepressing the SILENCE pushbutton. If pushing the fuel button has no effect, continue to step 2.
2. FUEL PUSHBUTTON: (When audible is already silenced.) Momentarily depress the fuel pushbutton. If after release of the
button the audible alarm engergizes, this indicates a fuel leak. The audible alarm can be silenced again by depressing the
SILENCE pushbutton.

Troubleshooting Guide:
A test button is used on all models to test the control panel. If the system is powered up and there are no fault conditions, thenormal contact should be lit. The warning lights and alarm should be de-energized. On pushing the test button, the normal
lights go off, all warning lights in that bank should light up and the alarm should sound. Push the silence pushbutton to deenergize the alarm. Releasing the test pushbutton should return the system to a normal condition.
If a WARNING light has been activated and a true fault condition is not found:
1. Recheck position of DIP switch (Figure 4-1, Table 4-1). If correct continue.

2. If the DIP switch is in the Inverse Mode (“ON”) position, removing the sensor wiring at the terminal block should deactivate the alarm. Shorting the terminal points should activate the alarm. If this does not happen, replace the electronic
module.
3. If the DIP switch is in the Direct Mode (“OFF”) position, removing the sensor wiring at the terminal block should
activate the alarm. Shorting the terminal points should de-activate the alarm. If this does not happen, replace the electronic module.
4. If the above tests show the operation of the module is correct and the alarm condition persists, repeat steps 2 and 3 for
all field terminal locations. This should isolate the problem to the appropriate area (field wiring, sensor). Replace orrepair appropriate equipment.
8

120 VAC

NC C NONC C NONC C NONC C NOCHNL #1
CHNL #2
CHNL #3
CHNL #4

7NC
8 9 L1 L2
C NO
G

Note:
Terminals 7,8 & 9 are single pole
double throw dry contacts designed forremote alarms.
Terminals 8 & 9 CLOSE ON FAULT
Terminals 8 & 7 OPEN ON FAULT
Contacts clear when the SILENCE
pushbutton is depressed or when thefault condition is cleared.
CONTACT RATING: 5A 1/10HP 120VAC

Aux
Connector

GroundISR1
Series 47D1A-0A4
Intrinstically
Safe Control

Contact
Rating
10A, 1/3 HP
VAC

L2 Neutral

L1 Hot1 2 3 4 5 6

Alarm

NormalAlarm #4

Alarm #3

Alarm #2CTEST

S1 G1 S2 G2 S3 G3 S4 G4 SILENCE

Alarm #1

Sensor1

Silence

Sensor3

Sensor
4

Hazardous Area

Sensor2

Seal Off Fitting

Test

Sample Wiring Diagram
DMS-474-A-2 / DMS-574-A-2

Figure 9-1

9Sample Wiring Diagram
DMS-478-A-1 / DMS-578-A-1

ISR1
Series 47D1B04
Instrinsically
Safe Control

Alarm #1
A

Alarm #2

TEST

C

Alarm #3

1 2 3 4 5 6AAlarm #4
A

Normal9 L1 L 2 G
7 8
NC C NOY

Alarm

SILENCES 1 G 1 S 2 G 2 S 3 G 3 S 4 G 4 SILENCE TESTA

Seal Off Fitting

ISR2
Series 47D1B04
Instrinsically
Safe Control

Alarm #1
A

Alarm #2TEST

1 2 3 4 5 6

Alarm #4
A

Normal9 L1 L 2 G
7 8
NC C NOY

L1 Hot120 VACL2 Neutral
GroundNote:
Terminals 7,8 & 9 are single pole
double throw dry contacts designed forremote alarms.
Terminals 8 & 9 CLOSE ON FAULT
Terminals 8 & 7 OPEN ON FAULT
Contacts clear when the SILENCE
pushbutton is depressed or when thefault condition is cleared.
CONTACT RATING: 5A 1/10HP 120VAC

Figure 10-1
10SILENCES 1 G 1 S 2 G 2 S 3 G 3 S 4 G 4 SILENCE TESTC

A

Sensor
4

Hazardous Area

A

Alarm #3

Sensor3

Sensor2

Sensor
1

Seal Off Fitting

Sensor1

Sensor2

Sensor3

Sensor
4

Hazardous Area

Panel Dimensions
NEMA 3R
10 X 8 X 6 ENCLOSURE

DMS-474-A

DMS-474
NORMALALARM 1

ALARM 2

ALARM 3

ALARM 411.00”

10.00”TEST

SILENCE

3.00”
8.00”

Figure 11-1
NEMA 3R
12 X 12 X 6 ENCLOSURE

DMS-478-A

DMS-478

NORMALNORMALALARM 1

ALARM 2

ALARM 3

ALARM 4

ALARM 1

ALARM 2

ALARM 3

ALARM 412.00”

13.00”TESTTEST

SILENCE

SILENCE

3.00”
12.00”

Figure 11-2
11

Panel Dimensions
DMS-574-A

NEMA 3R
10 X 8 X 6 ENCLOSURE
DMS-574
NORMALALARM 1

ALARM 2

ALARM 3

ALARM 411.00”

10.00”

SILENCE

TEST

3.00”
8.00”

Figure 12-1

DMS-578-A

NEMA 3R
12 X 12 X 6 ENCLOSURE
DMS-578

NORMALNORMALALARM 1

ALARM 2

ALARM 3

ALARM 4

ALARM 1

ALARM 2

ALARM 3

ALARM 412.00”

13.00”TESTTEST

SILENCE

SILENCE

3.00”
12.00”

Figure 12-2

12Gems Sensors Inc.
One Cowles Road
Plainville, CT 06062-1198
Tel: 860-793-4579
Fax: 860-793-4580