Time Mark 407 Data Sheet

12.0”

11.5”

3.25”

7.1”

7.6”

6.7”

.187” dia

TIME MARK is a division of

MODEL 407

Liquid Level

Controller

 Three pump operation

 Three run-time meters

 Selectable lead or automatic

alternation

 Five sensing levels

 Alarm outputs

 Hand-off-auto controls

DESCRIPTION

The Model 407 Liquid Level Controller provides central

control of triplex pumping systems. The Model 407 includes
pump alternating, visual run-time meters, hand-off-auto (HOA)
controls and alarm outputs.

Five level-sense inputs interface with float switches, pressure
switches, or other level sensing devices which can provide a
contact closure.

A SPST, normally-closed internal power-fail contact opens when
AC power 120VAC is connected to the controller, and closes if
power is lost or removed. Connections for external remote
alarm contacts, which must remain closed for normal operation
(or jumpered if not required), are supplied for each pump.

If either circuit opens, the corresponding pump will be locked out

until the problem is corrected and the ‘Alarm reset’ switch is

pressed.

DIMENSIONS

SPECIFICATIONS

MODEL 407

Input voltage 105-130VAC

Input frequency 60Hz

Power consumption 10W max.

Contacts SPST relay

Contact rating 10A at 240VAC resistive

Float Switch Potential 12VDC at 1mA

Transient protection 2500 V for 10ms

Operating temperature - 20º to +140º F

Display

Humidity tolerance 0-97% without condensation

Expected relay life

Case material 20 gauge Steel

Termination Removable terminal strip

Weight 6.1 lbs

Mechanical: 10 million operations
Electrical: 100,000 operations at rated load

to 99,999.9 non-resettable

Page 1 of 4 11/2011

© 2011 TIME MARK CORPORATION

TIME MARK is a division of

These contacts are external

MODEL 407

Liquid Level Controller

READ ALL INSTRUCTIONS BEFORE INSTALLING, OPERATING OR SERVICING THIS DEVICE.

KEEP THIS DATA SHEET FOR FUTURE REFERENCE.

POTENTIALLY HAZARDOUS VOLTAGES ARE PRESENT AT THE TERMINALS OF THE MODEL 407.

ALL ELECTRICAL POWER SHOULD BE REMOVED WHEN CONNECTING OR DISCONNECTING WIRING.

DO NOT EXCEED THE OUTPUT OR INPUT RATINGS, AS STATED IN THE SPECIFICATIONS.

PROTECT THE UNIT WITH PROPERLY RATED FUSES.

DO NOT INSTALL IN DAMP OR MOIST AREAS.

THIS DEVICE SHOULD BE INSTALLED AND SERVICED BY QUALIFIED PERSONNEL.

GENERAL SAFETY

Installation Instructions

INSTALLATION

Mount the controller in a suitable enclosure. Unplug the
terminal connectors from the controller.

Referring to the terminal block decal on the controller
and the illustration on this page, make the following
connections.

1. Connect a chassis ground to the terminals m a rk ed
AC GND.

2. Connect 115VAC operating power to the
terminals marked 115VAC.

3. Connect the LOW float switch to the LOW
terminals. Polarity is not critical.

4. Repeat step 3 for LEAD, LAG, LAG-LAG, and
HIGH terminals.

5. The SIGNAL GROUND connection is a common
between the controller and a Liquid Level Sensor,

no connection is necessary if the sensor is not
used.

6. The PUMP 1, 2, & 3 REMOTE ALARM terminals
should be connected to normally closed (NC)
alarm contacts in the motors. If none exist it is st i l l
necessary to install a jumper connection between
Pump 1, PUMP 2, & PUMP 3 REMOTE ALARM
terminals.

7. The POWER FAIL, ALARM BELL, & ALARM
LIGHT are not required for proper operation, but
are provided for your convenience. If used,
connect an audible/visual alarm across the
terminals. The POWER FAIL contact is open
while power is applied and closes on loss of
power. Connect audible and visual a l a r m s
across the ALARM BELL and ALARM Light
terminals respectively. These contacts are
normally open and will close on a fault (high or
remote alarm) condition.

8. Connect the PUMP 1, PUMP 2, & PUMP 3
contacts to the appropriate motor control circuits.
These contacts start and stop the pump motors
during operation.

Set the HOA (Hand-off-Auto) switches and the LEAD
PUMP selector switch as required. Apply operating
power. Test alarm LEDs and bells by pressing the
ALARM TEST switch.

If motor contacts not
used, install a jumper
connection

OUTPUT CONTACTS

10 AMPS MAX

INPUT SWITCHES

12VDC

Page 2 of 4 11/2011

© 2011 TIME MARK CORPORATION