Time Mark 4082 Data Sheet

.75"

10.5"

11.5"

.19 dia. typ.
(6 places)

8.5"

9.5"

3.55"

10"

TIME MARK is a division of

MODEL 4082

Liquid Level

Controller

 Level simulator control

 2 scalable 4-20mA outputs

 Output voltage for probe supply

 8 adjustable setpoints with relay outputs

 LCD level display with zero and span adjustments

DESCRIPTION

The Model 4082 Liquid Level Controller monitors, displays
and controls water level up to 34.6 feet, in a tank or reservoir.

The Model 4082 operates from the 4-20mA input signal
provided by either the Time Mark Model 450 or Model 456-15
Pressure Transducer. This 4-20mA signal represents the
water level to be controlled, where 4mA equals zero feet, and
20mA equals 34.6 feet. A liquid crystal display (LCD) is
provided to show the water level during normal operation, and
the setpoint values during calibration.

There are eight user-adjustable trip setpoints. As the water
level rises above each trip point setting, the front panel LED
for that level illuminates, and the corresponding output relay
energizes.

Two 4-20mA outputs, which track the 4-20mA input, are also
provided. These signal outputs can be re-scaled to different
ranges of level by the user. A test control, that simulates an
input signal, is available on the front panel. The test control is
useful for checking the trip setpoints, and overall system
operation.

DIMENSIONS

SPECIFICATIONS

MODEL 4082

Input voltage 120VAC, ± 10% 50/60Hz

Power consumption 6W maximum

Signal input

Signal input load

Dead band 1% of full scale

Repeat accuracy ± 1% of scaled maximum (fixed conditions)

Display type 3-1/2 digit liquid crystal display

Display range

Display resolution 1 decimal place (factory set; user-adjustable)

Contacts 8 SPDT

Contact rating 10A at 240VAC resistive

Signal output Output is factory set to track the 4-20mA input.

Signal output load

Probe supply voltage 24VDC regulated

Trip levels 8 setpoints, user-adjustable

Operating temperature +14º to +122º F

Humidity tolerance 0-97% w/o condensation

Enclosure material front panel - 16 gauge steel

Termination removable terminal strips

Weight

Agency Approvals UL Recognized (U.S. & Canadian)

4-20mA (optional 0-5v), 2 or 3 wire

250 maximum

00.0 to 34.6 w/4-20mA input

(factory set; user-adjustable)

4A at 120VAC inductive

zero and span adjustments are provided:

as little as a 2mA change can cause a full swing of the output

300 maximum

rear panel - 20 gauge steel

5.5 pounds

Page 1 of 6 11/2011

© 2011 TIME MARK CORPORATION

C

E

D

G

A

H

F

E

D

C

TIME MARK

CORPORATION

INPUT LEVEL

SETPOINT 1
SETPOINT 2
SETPOINT 3
SETPOINT 4

INPUT LEVEL

INPUT LEVEL
SETPOINT 8
SETPOINT 7
SETPOINT 6
SETPOINT 5
INPUT LEVEL

PUSH

MIN

1

5

ZERO

ZERO

SPAN

SPAN

ZERO

SPAN

SETPOINTS

SETPOINTS

DISPLAY
SELECT

M ODEL 40 82

LIQUID LEVEL CONTROLLER

4-20ma

OUTPUT

AUX 4-20 ma

OUTPUT

LIQUID
LEVEL
(

FEET

)

2

6

3

7

4

8

LEVEL

SIMULATOR

MAX

MADE I N

USA

B

TIME MARK is a division of

1 2 3 4 5 6 7 8

MODEL 4082

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 4082.

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

Front Panel Controls

figure 1

TYPICAL APPLICATION

3-1/2 DIGIT LCD INDICATOR - SHOWS LIQUID LEVEL IN FEET

A

ZERO AND SPAN ADJUSTMENTS FOR THE DISPLAY

B

ZERO AND SPAN ADJUSTMENTS FOR 4-20MA OUTPUT

C

SIGNAL

INDICATOR LEDs - SHOW WHEN SETPOINT IS REACHED

D

(ONE PER SETPOINT)

SETPOINT ADJUSTMENT POTENTIOMETERS

E

DISPLAY SELECT SWITCH - USED TO DISPLAY LIQUID LEVEL

F

OR TRIP POINT SETTINGS

PUSH BUTTON - ENABLES SIMULATED LEVEL CHANGE

G

SIMULATES LIQUID LEVEL CHANGE (WITH OR WITHOUT

H

INPUT SIGNAL) WHEN BUTTON G IS PRESSED. THE 4-20MA
OUTPUT IS ALSO AFFECTED.

Warranty

This product is warranted to be free from defects in
materials and workmanship for one year. Should this
device fail to operate, we will repair it for one year 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.

Page 2 of 6 11/2011

© 2011 TIME MARK CORPORATION