The TTDJ-IGN models include a Backup Power Battery located within the
TTDJ module. To gain access to and to replace the battery do the following:
1. Make sure the area is made Non-Hazardous and shut down the System
(remove power).
2. Using extreme caution remove the Power Supply Cover Screws (located
on the back of the TTDJ module).
3. Gently pull the Power Supply Cover away from the back of the TTDJ to
have access to the old Backup Battery.
4. Locate the old Backup Battery.
5. Using extreme caution, not to damage any component, replace the battery
with a
6 VDC, 1300 mAh, Duracell
®
DL223A or Sanyo
®
CR-P2
Lithium
battery, available from Murphy (p/n
00005125
).
6. Carefully proceed to replace the Power Supply Cover.
7. You are now ready to power up your system and resume operations.
TTDJ-99062N page 3 of 8
TTDJ MOUNTING DIMENSIONS (All Models)
WARNING:
PERFORM THE MOUNTING OPERATION WITH POWER SOURCE OFF. THE TTDJ SERIES MODULE WAS DESIGNED
TO BE MOUNTED WITHIN A WEATHERPROOF ENCLOSURE. IT IS INTENDED FOR MOUNTING IN A FLAT PANEL. A SQUARE
MOUNTING HOLE OF 5-1/2 IN. (140 MM) AND FOUR MOUNTING SCREW HOLES ARE NEEDED. INSERT THE MODULE FROM THE
FRONT SIDE OF THE PANEL AND SECURE THE FOUR MOUNTING SCREWS AND NUTS THROUGH THE BEZEL.
Panel Mounting Side View
5.50 in.
(140 mm)
0.156 in. (4 mm)
dia. 4 places
5.50 in. (140 mm)
Panel
Mounting
Hole
Keps
Nut
Screw
6-1/2 in. (165 mm)
3-3/8 in.
(86 mm min. mounting clearence)
49/64 in.
(19 mm)
6-1/2 in.
(165 mm)
5-1/4 in.
(133 mm)
RESET
READ
SENSOR
RPM
HOURS
RUN
STOP
6.0 in.
(152 mm)
3.0 in.
(76 mm)
3.0 in.
(76 mm)
6.0 in. (152.3 mm)
Mounting Hole
REPLACING THE BATTERY (-IGN Models only)
WARNING:
THE BACKUP POWER BATTERY IS LOCATED WITHIN THE TTDJ MODULE. THEREFORE, EXTREME CAUTION MUST BE
EXERCISED WHEN REPLACING IT. FOR CLASS I, DIVISION 2, HAZARDOUS AREAS INSTALLATIONS, FIRST, SHUTDOWN THE SYSTEM
AND MAKE SURE THAT THE HAZARDOUS AREA IS KNOWN TO BE NON-HAZARDOUS BEFORE OPENING THE POWER SUPPLY COVER.
Power Input (Operating Voltages):
TTDJ-DC; TTDJ-DC-T Models: 10- 32VDC, 500 mW max.
TTDJ-IGN; TTDJ-IGN-T Models: 90-350 VDC negative ground
CD ignition; approx. 650µA @ 100VDC.
Sensor Inputs: 32 N.O. or N.C. passive switches.
Inputs 1-16: Configurable as Class “A”, “B1”, “B2”, or “C” Shutdown or
Alarm Before Shutdown*.
Inputs 17-28: Dedicated Class “A” shutdowns.
Inputs 29: Configurable as Class “A” or Class “ESD”.
Input 30: Selectable Remote Reset or Class “A”.
Input 31: Remote Lockout or Class“A”; inhibits the Class “B1 &
B2” Lockout Timers.
Input 32: Class “ESD” Overrides Test Timer, typically used for emergency
shutdown.
Outputs: 0.5 A @ 350 VDC.
Outputs Selection: Ground ignition immediately or trip fuel valve and ground igni
tion after time delay.
Communications: RS485 Serial Port, Modbus RTU slave (TTDJ-DC models).
Operating Temperature: -40 to 185°F (-40 to 85°C).
Storage Temperature: -40 to 185°F (-40 to 85°C).
Sensor Scan Rate: Within 1 second.
B1 Start/Run Timer: Adjustable, 0 - 5 minutes.
B2 Start/Run Timer: Adjustable, 0 - 9:59 minutes.
Pulses per Revolution Range for Tach. Calibration:
32-360 (TTDJ-DC-T); 1 - 16 (TTDJ-IGN-T).
Overspeed Set point: 0 - 9999 rpm.
Underspeed Set point: 0 - 5000 rpm.
Magnetic Pickup: 5 - 120 Vrms, 0-10 kHz.
On-Board Backup Power 00005125 (-IGN Versions only):
6 VDC, 1300 mAh, Duracell
®
DL223A or Sanyo
®
CR-P2 Lithium battery.
Tachometer Accuracy: ±0.5% of the display reading or ±1 RPM
whichever is greater.
Hourmeter Range: 0 to 65535 hrs.
Hourmeter Accuracy: ±15 minutes per year.
SPECIFICATIONS
*Alarm Before Shutdown is a function that causes annunciation and the alarm output, but will not cause a shutdown.
