Greyline Instruments Tank Farm Transmitter TFT32 Manuel utilisateur

USER’S GUIDE

Installation & Operation

Instructions

Tank Farm Transmitter

Model TFT 32

Series 2.4

Pressure Sensor Input (-B-)

Note: This page has been left blank intentionally.

IMPORTANT NOTE: This instrument is manufactured and calibrated to meet product specifications.

Please read this manual carefully before installation and operation. Any unauthorized repairs or

modifications may result in a suspension of the warranty.

Available in Adobe Acrobat pdf format

Page 3

TFT32 Tank Farm Transmitter

Manual Series 2.4

INDEX

Bench Test and Connections·····································4

Calibration System ············································7

Calibration Menu ·············································8

Calibration Units Selection······································9

Output Span Calibration ········································10

Level Calibration ·············································11

Relay Calibration ·············································15

Damping ····················································16

Transmitter/Tank Address ······································16

Baud Rate ···················································17

Output Simulation·············································17

Store/Save Calibration ·········································17

Enclosure Installation ··········································19

Sensor Installation·············································20

Error/Warning Messages ·······································21

Communication Protocol ·······································22

Fuse Replacement ·············································24

Applications Hotline ···········································25

Product Return Procedure ·······································26

Warranty ···················································27

Conversion Tables ············································30

Specifications ················································31

QUICK BENCH TEST (PRESSURE INPUT):

Connect Sensor as shown below, then apply Power. When properly connected figures will be shown on

the LCD display. Test operation of the TFT32 by applying pressure to the sensor or 4-20mA input. The

TFT32 will now display level in inches or cm.

CONNECTIONS:

POWER INPUT: The standard model requires DC power input between 15 to 24VDC with current

consumption of 120mA maximum. Power GND must be connected to a good “earth” ground for surge

protection.

RS485 NETWORK: Connections from the 485 network (other TFT32’s and the PC computer) are:

Data - (D*), Data + (D) and signal/shield ground (S.G.)

IMPORTANT NOTE: To comply with CSA/NRTL standards, power input and relay connection wires

must have a water tight fitting conduit entry to the instrument enclosure.

TFT32 Tank Farm Transmitter

Manual Series 2.4

Page 4

14 AWG MAX

IMPORTANT:

MUST CONNECT TO A

GOOD GROUND (<1 Ohm)

WITH 14 AWG CONDUCTOR

RELAY

(1 AMP)

RS485 INPUT

S.G

24VDC

–

GND

6 - CONDUCTOR SHIELDED

18 - 22 AWG RECOMMENDED

SENSOR

TO RS485

NETWORK

RED

BLK

CONNECT

TO RS485

NETWORK

CABLE

LOCAL NETWORK CONNECTIONS

TFT32 Tank Farm Transmitter

Manual Series 2.4

Page 5

IMPORTANT:

MUST CONNECT TO A

GOOD GROUND (<1 Ohm)

WITH 14 AWG CONDUCTOR

IMPORTANT:

MUST CONNECT TO A

GOOD GROUND (<1 Ohm)

WITH 14 AWG CONDUCTOR

RELAY

(1 AMP)

RELAY

(1 AMP)

RS485

RS485 INPUT

INPUT

S.G

24VDC

–

GND

–

GND

120 ohm

TERMINATOR

(supplied)

LAST (FURTHEST) TFT IN THE NETWORK

TO RS485

NETWORK

TFT'S

RED

BLK

SENSOR

IMPORTANT:

MUST CONNECT TO A

GOOD GROUND (<1 Ohm)

WITH 14 AWG CONDUCTOR

RELAY

(1 AMP)

RS485

S.G

24VDC

–

GND

RED

BLK

SENSOR

SHIELD

24V+

24V-

115VAC

PS150 POWER SUPPLY

S+ V+ V+ V+ V- V- V- S-

RS485/232

CONVERTER

RS232

Port

TO RS485

NETWORK

DO NOT

CONNECT

SHIELD

DO NOT

CONNECT SHIELD

TO RS485

NETWORK

TFT'S

485OI9TB-12V

D–

D+

GND

12V

RS485

DB9F

RS232

6 - CONDUCTOR SHIELDED

18 - 22 AWG RECOMMENDED

6 - CONDUCTOR SHIELDED

18 - 22 AWG RECOMMENDED

6 - CONDUCTOR SHIELDED

18 - 22 AWG RECOMMENDED

GND

DIAL-UP LOCATION CONNECTIONS

TFT32 Tank Farm Transmitter

Manual Series 2.4

Page 6

IMPORTANT:

MUST CONNECT TO A

GOOD GROUND (<1 Ohm)

WITH 14 AWG CONDUCTOR

6 - CONDUCTOR SHIELDED

18 - 22 AWG RECOMMENDED

RELAY

(1 AMP)

RS485

S.G

24VDC

–

GND

120 ohm

TERMINATOR

(supplied)

TO RS485

NETWORK

(

FURTHE

)

TFT IN THE NETW

TFT'S

RED

BLK

IMPORTANT:

MUST CONNECT TO A

GOOD GROUND (<1 Ohm)

WITH 14 AWG CONDUCTOR

6 - CONDUCTOR SHIELDED

18 - 22 AWG RECOMMENDED

RELAY

(1 AMP) RS485

S.G

24VDC

–

GND

RED

BLK

SENSOR

TO RS485

NETWORK

TFT'S

DO NOT

CONNECT SHIELD

115VAC

SHIELD

24V+

24V-

PS150 POWER SUPPLY

S+ V+ V+ V+ V- V- V- S-

NULL

MODEM

SENSOR

DO NOT

CONNECT

SHIELD

INPUT

RS485/232

CONVERTER

485OI9TB-12V

D–

D+

GND

12V

RS485

DB9F

RS232

DB9M

DB25M

GND

KEYPAD SYSTEM

The TFT32 has a simple 2-key calibration system. Operating and calibration modes are shown on the 4

digit display. The keys are used to calibrate the TFT32, and to view operating mode and functions. If the

keys are not used for 10 minutes, the TFT32 will automatically go to NORMAL MODE. Except in

OUTPUT SIMULATION mode, the Relay and RS485 serial output are not affected by use of the keys

until your calibration is stored.

MENU - FLOW CHART

The following diagram shows the TFT32 Menu system. Arrows show the directions to leave a box.

Pressing a corresponding key will move to the next box in the direction shown. Numeric values are

changed by pressing and holding the Çor Èkeys.

At the bottom of Menu is a YES? prompt. To store the calibration values permanently (even through

power failure), press the Çkey. If the Èkey is pressed from the YES? prompt no changes will be

stored and the system will return to NORMAL mode.

TFT32 Tank Farm Transmitter

Manual Series 2.4

Page 7

PERCENT INCHES CM

TFT32

Tank Farm Level Transmitter

RELAY

CALIBRATION KEYS

POWER

CONNECTION

4-DIGIT LCD DISPLAY

SENSOR

CONNECTION

RS485 NETWORK

CONNECTION

GND

+–

TFT32 CALIBRATION MENU

PRESSURE SENSOR INPUT

TFT32 Tank Farm Transmitter

Manual Series 2.4

Page 8

LO 1056

HI 1.000

dp10

98.0

100.0

ro FF

ron

roc1

100= 999.9

0.0

123.4

CALU

PERCENT

PERCENT CM

LEVEL CM

PERCENT INCHES CM

mA DISPLAY

Displays mA signal as received from sensor

or to increase or

decrease.

IN-SITU CALIBRATION

Simulate 4mA with 4-20mA input device and enter the minimum

value of input device.

With level 70% of tank enter the current level.

Simulate 20mA with 4-20mA input device and enter the

maximum value from the input device.

ÇÈ

NORMAL MODE

CALIBRATION UNITS SELECTION

Press to select inches, cm, percent or blank (other units)

OUTPUT SPAN CALIBRATION

"0=" Enter minimum reading to be displayed by the TFT32

"100=" Enter maximum reading to be displayed by the TFT32

Wait for the numeric value then press

RELAY OPERATION CHOICE.

Press to select: 3 = Signal Loss Only

1 = Level Alarm 4 = Always ON

2 = Level + Signal Loss 5 = Always OFF

RELAY SET POINTS

Wait for numeric value and press and to adjust Set Points

(in percentage of Span)

DAMPING (0-15 secs)

Press to adjust

TRANSMITTER/TANK ADDRESS

Press to select 1-32

SERIAL OUTPUT BAUD RATE

Press to select 19 = 19200 4 = 4800

9 = 9600 2 = 2400

OUTPUT SIMULATION

Wait for numeric value and press and to increase or

decrease Simulated Output (Automatically returns to NORMAL

mode in 10 minutes)

STORE YES?

Press to store Calibration (displays -C.S-)

Press Calibration Not Stored

ÇÈ

YES?

-C.S-

100.0OPSL

bd19

Ad 1

YES

3,4,5, 6 1,2

See Page

20.0

NORMAL MODE

CALIBRATION UNITS SELECTION

Press Èfrom NORMAL mode, display will show:

TFT32 Tank Farm Transmitter

Manual Series 2.4

Page 9

The TFT32 Normal Mode

is always Level

LEVEL CM

ON - Relay energized

OFF - Relay de-energized

RELAY

INCHES

PERCENT

BLANK

PERCENT INCHES CM

LEVEL

CALIBRATION

(Any Units)

OUTPUT SPAN CALIBRATION

Wait for the numeric value and press Çto enter the zero level, or minimum level of the tank. With

display on 0 = press È

Wait for the numeric value and press Çto enter the maximum level of the tank. With display on 100 =

press È.

TFT32 Tank Farm Transmitter

Manual Series 2.4

Page 10

100=

Max Level

Zero Level

LEVEL

(Pressure Sensor)

Pressure

Sensor

100=

1524

1523

1522

0.1

0.2

0.3

and

every 3 seconds

The Display will alternate between

199.9

199.8

199.7

200.1

200.2

200.3

and

every 3 seconds

The Display will alternate between

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