Time Mark 19 Data Sheet
MODEL 19
TIME MARK is a division of
3-Phase Monitor
with Trip & Restart Delays
⚫ Detects phase loss, low voltage, phase reversal
⚫ 50Hz, 60Hz and 400Hz models
⚫ Automatic reset
⚫ UL Recognized in the U.S. and Canada
⚫ Five year unconditional warranty
DESCRIPTION
The Model 19 continuously monitors 3-phase
power lines for abnormal conditions. When
properly adjusted, the Model 19 monitor will
detect phase loss on a loaded motor even when
regenerated voltage is present.
This device consists of a microcontroller with a
voltage and phase-angle sensing circuit, driving
an electromechanical relay. When correct
voltage and phase rotation are applied, the
internal relay will energize. A fault condition will
de-energize the relay. When the fault is
corrected, the monitor will automatically reset.
An adjustable restart delay prevents short
cycling in compressor applications and an
adjustable trip delay prevents nuisance tripping
during power fluctuations.
The Model 19 does not require a neutral
connection and can be used with Wye or Delta
systems. Voltage ranges are sufficiently wide to
allow for proper adjustment to existing
conditions. Both “FAULT” and “NORM”
condition indicators are provided to aid in
adjustment and system trouble-shooting.
All versions of the Model 19 are available with
optional gold flashed silver contacts for low
current applications.
TYPICAL APPLICATION
SPECIFICATIONS
Model 19-120 19-208/240 19-480 19-380-50 19-120-400 19-208/240-400 19-415-50
Nominal AC
(phase to phase)
Adjustment range 85-120VAC 160-240VAC 380-480VAC 300-400VAC 85-120VAC 160-240VAC 340-440VAC
Frequency 60Hz 60Hz 60Hz 50Hz 400Hz 400Hz 50Hz
Power
consumption
Transient
protection
Repeat accuracy ± 0.1% of set point (fixed conditions)
Trip delay 1-30 sec.
Restart Delay 1-300 sec.
Dead band Approximately 2%
Output contacts SPDT 10 amps at 240VAC resistive
Expected relay
life
Operating temp -20° to +131° F
Humidity
tolerance
Enclosure
material
Mounting 8-pin socket ( **sold separately)
Weight 4.5 ounces
* Low Current
Options
Agency Approval
120VAC 208/240VAC 480VAC 380VAC 120VAC 208/240VAC 415VAC
1.4W 2.4W 3.7W 3.0W 1.4W 2.4W 3.3W
2500VAC for 10ms
(Low current options available for all models—See below)*
For low current applications: Models ordered with suffix “/SG” will have
silver with gold flash contacts (SPDT 5 amps at 120VAC resistive)
Mechanical: 10 million operations
Electrical: 100,000 operations at rated load
0 - 97% w/o condensation
NORYL plastic cover; 6/6 Nylon base
UL Recognized (U.S. and Canada)
(For use in a Polluon Degree 2 Environment)
** Order 8-pin socket number 51X120
DIMENSIONS
11440 Eas t P i n e S t r e e t
Tulsa, O k l a h o m a 74116
02/2019
© 2019 TIME MARK CORPORATION
MODEL 19
TIME MARK is a division of
3-Phase Monitor
READ ALL INSTRUCTIONS BEFORE INSTALLING, OPERATING OR SERVICING THIS DEVICE.
KEEP THIS DATA SHEET FOR FUTURE REFERENCE.
GENERAL SAFETY
POTENTIALLY HAZARDOUS VOLTAGES ARE PRESENT AT THE TERMINALS OF THE MODEL 19.
ALL ELECTRICAL POWER SHOULD BE REMOVED WHEN CONNECTING OR DISCONNECTING WIRING.
THIS DEVICE SHOULD BE INSTALLED AND SERVICED BY QUALIFIED PERSONNEL.
Installation Instructions
WARNING
IN APPLICATIONS WHERE VOLTAGES IN EXCESS OF
300VAC ARE TO BE MONITORED, BE CERTAIN TO USE
THE TIME MARK MODEL 51X120 8-PIN SOCKET, OR AN
EQUIVALENT HIGH QUALITY 600VAC RATED SOCKET.
INSTALLATION
Mount the 8-pin socket in a suitable enclosure. A NEMA-1
rated enclosure, designed for socket-mounted relays is
available from Time Mark Corporation (P/N 98A498).
Connect 3-phase power to terminals 3, 4, and 5 on the
socket. Phase rotation should be verified using a Time Mark
Model 108A or 108B Phase Sequence Detector.
Connect the load control wiring to the appropriate terminals
on the socket:
For motor control applications; use terminals 1 and 8.
For phase loss alarm applications; use terminals 1 and 2.
Insert the Model 19 into the socket and apply power. If the
contact does not transfer (green light ON), check that all
phases are present, and of the correct voltage. If power is
correct, rotate the trip adjust control counter-clockwise.
If the contact still does not transfer, remove power and
reverse two of the three phase wires at the socket (phase
rotation is reversed). Re-apply power. The contact should
transfer to provide a signal path between pins 1 and 8.
NOTE: When installing the Model 19 monitor in areas of high
humidity or contamination, it is recommended that the base area
and all exposed metal parts of the socket be coated liberally with
a good quality silicone grease, such as Dow Corning DC-4 or DC-
4X. Insert the unit into the socket and wipe off excess grease
around the base. This will prevent the entrance of moisture and
other contaminates into the base and socket areas.
ADJUSTMENT SETTINGS
The following procedure will allow the Model 19 to be adjusted
to achieve a trip point just below the nominal phase-to-phase
voltage, where the unit is applied:
Initially, set all adjustments fully counterclockwise.
Rotate the trip adjust control clockwise until the red (FAULT)
indicator illuminates.
ADJUSTMENT SETTINGS (cont’d)
Next, slowly rotate the trip adjust control in a counter-
clockwise direction, until the green (NORM) indicator
illuminates.
At this point, the Model 19 is the most sensitive to irregular
power line conditions. Adjust the trip delay as required to
prevent nuisance tripping due to power fluctuations or motor
start-ups. Adjust the restart delay as required for the
application.
A more accurate setting will require the use of a 3-phase
variac to lower the voltage to an exact measurable setting.
Time Mark also offers a factory set version of all models and
voltage ranges, for only a small additional charge.
PIN DIAGRAM
TROUBLESHOOTING
Should the Model 19 Monitor fail to operate properly, check
that all three voltages are present, and are of the correct
voltage level and phase rotation (a Model 108A or 108B
Phase Sequence Detector should be used to verify phase
rotation). Check all fuses and verify that all wiring connections
are correct. If problems persist, contact your local Time Mark
Distributor, or the factory for assistance (Monday-Friday,
8 a.m. to 5 p.m. CST).
WARRANTY
This product is warranted to be free from defects in materials
and workmanship, and is covered by our exclusive 5-year
Unconditional Warranty. Should this device fail to operate
for any reason, we will repair it for five years from the date of
manufacture. For complete warranty details, see the Terms
and Conditions of Sales page in the front section of the Time
Mark catalog or contact Time Mark at 1-800-862-2875.
11440 Eas t P i n e S t r e e t
Tulsa, O k l a h o m a 7 4116
02/2019
© 2019 TIME MARK CORPORATION
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