Gems Sensors & Controls DMS470, DMS570 Operating Manual
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
Form 725-B
Sheet P/N 7800824
Rev. A
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 8 Operation Instructions
- Panel Operation
- Fuel/Water Pushbutton Operation
- Troubleshooting Guide
Page 9 Sample 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
Installation: Intrinsically Safe Sensing Circuit s
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 A WG type MTW or THHN wire. By using these wire types in conjunction with
the following distance recommendations, you will not exceed the maximum capacitance for field wiring.
Use Table 1 as a guide for maximum wire runs.
Table 1
Model No.
DMS470/570
DMS470/570
4. Intrinsically safe terminals can be connected to any non-energy generating or storing switch device such as a
pushbutton, 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 for
details 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.
Number of Sensor Wires Distance Per Channel
All 2 Wire Sensors
All 3 Wire Sensors
900 Feet
450 Feet
Sensor Wiring
Sensors: Wire the sensor devices to the Series DMS 470/570 Monitoring Panel as shown in figure 3-1 to 3-4. (A
separate 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 Circuit s
Figure 3-1
Sensor #1
G1
S1
(BLK)
(RED)
2 Wire Sensor
Two (2) wire sensor connections for standard terminals
Figure 3-2
Sensor #1
G1S1
COMMON
(BLK)
FUEL
3 Wire Sensor
S2
(GRN)
WATER
(RED)
Enclosure
Enclosure
Sensor #1
S1
G1 S2 G2 S3G3S4 G4
Sensor #1
S1
G1 S2 G2 S3G3S4 G4
Sensor #2
Sensor #3
Sensor #2
Sensor #4
SIL
TEST
Conduit Hub for
Sensor Wires ONL Y!
SIL
TEST
Three (3) wire sensor connections for standard terminals
Conduit Hub for
Sensor Wires ONL Y!
For those models using the optional “check” push buttons, wire sensors per Figures 3-3 and 3-4.
Figure 3-3
Enclosure
Sensor #1
Sensor #4
C1
(BLK)
W1
(RED)
F1
2 Wire Sensor
Two (2) wire sensor connections for Fuel/Water terminals
Sensor #1
F1
C1W1F2
Sensor #2
Sensor #3
C2
C3
W2 F3
W3 F4 C4 W4
Conduit Hub for
Sensor Wires ONL Y!
Enclosure
Figure 3-4
Sensor #1
F1
C1
W1
Sensor #1
Sensor #2
Sensor #3
Sensor #4
FUEL
3 Wire Sensor
(BLK)
COMMON
(GREEN)
WATER
(RED)
Three (3) wire sensor connections for Fuel/Water terminals
F1
C1W1F2
C2
C3
W2 F3
W3 F4 C4 W4
Conduit Hub for
Sensor Wires ONL Y!
3
Operation Instructions
Control Panel Settings
Before putting system into operation, DIP switches and potentiometers (set point) must be set to correctly match the
type of sensor you are using. (Ref to T able 4-1). The DIP switches and potentiometers are located above the sensor
terminal strip. (Figure 4-1)
DIP SWITCHES
INVERSE
INVERSE
FIELD WIRING
TERMINAL STRIP
MIN 1 MAX
SETPOINT
S1
1 DIRECT 2
G1 S2 G2 S3 G3 S4 G4 SILENCE TEST
MIN 2 MAX
SETPOINT
MIN 3 MAX
SETPOINT
3 DIRECT 4
SENSOR CONNECTIONS
MIN 4 MAX
SETPOINT
Figure 4-1
Setting the DIP Switches
T able 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 S teel
Hydrocarbon/Water Sensing
Double Wall S teel
Liquid Sensing
Product Level Alarm
(Normally Closed Float)
Product Level Alarm
(Normally Open Float)
Monitoring Well
(Hydrocarbon V apor)
Detector
Unused Channel
Unknown
Unknown
WARRICK
SENSOR
DFP-25
DWP-25
DSP-2
DLP-2
LS-700/800
LS-700/800
SVP-2
None
Unknown
Normally
Open Switch
Unknown
Normally
ClosedSwitch
ACTIV ATION
CONDITION
Closes on Detecting Fuel
Closes on Detecting
Water
Closes on Detecting
Hydrocarbon or Water
Closes on Detecting
Liquid
Opens on Rising Level
Closes on Rising Level
Resistance Increases
on Detecting V apors
NA
Closed on Fault
Open on Fault
DIP SWITCH
SETTING
Inverse (“ON”)
Inverse (“ON”)
Inverse (“ON”)
Inverse (“ON”)
Direct (“OFF”)
Inverse (“ON”)
Direct (“OFF”)
Inverse (“ON”)
Inverse (“ON”)
Direct (“OFF”)
SET POINT
ADJUSTMENT
NA
NA
NA
NA
See Instructions on
set point setting
NA
See Instructions on
set point setting
NA
NA
Consult Factory
4
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