Greyline Instruments Tank Farm Transmitter TFT32 Bedienungsanleitung

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
mA
+-
D
D
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
mA
+-
INPUT
mA
+-
INPUT
mA
+-
D
D
S.G
*
D
D
S.G
*
24VDC
24VDC
+
–
GND
+
–
GND
120 ohm
TERMINATOR
(supplied)
LAST (FURTHEST) TFT IN THE NETWORK
TO RS485
NETWORK
MORE
TFT'S
RED
RED
BLK
BLK
SENSOR
SENSOR
IMPORTANT:
MUST CONNECT TO A
GOOD GROUND (<1 Ohm)
WITH 14 AWG CONDUCTOR
RELAY
(1 AMP)
RS485
D
D
S.G
*
24VDC
+
–
GND
RED
BLK
SENSOR
NL
SHIELD
D*
D
24V+
24V-
115VAC
PS150 POWER SUPPLY
S+ V+ V+ V+ V- V- V- S-
RS485/232
CONVERTER
To
RS232
Port
TO RS485
NETWORK
DO NOT
CONNECT
SHIELD
DO NOT
CONNECT SHIELD
TO RS485
NETWORK
MORE
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
D
D
S.G
*
24VDC
+
–
GND
120 ohm
TERMINATOR
(supplied)
TO RS485
NETWORK
LA
S
T
(
FURTHE
S
T
)
TFT IN THE NETW
O
RK
MORE
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
D
D
S.G
*
24VDC
+
–
GND
RED
BLK
SENSOR
TO RS485
NETWORK
MORE
TFT'S
DO NOT
CONNECT SHIELD
115VAC
NL
SHIELD
D*
D
24V+
24V-
PS150 POWER SUPPLY
S+ V+ V+ V+ V- V- V- S-
NULL
MODEM
MODEM
SENSOR
DO NOT
CONNECT
SHIELD
INPUT
mA
+-
INPUT
mA
+-
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
mA
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
0=
123.4
CALU
CM
CM
PERCENT
PERCENT CM
CM
CM
CM
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
Ç
Ç
ÇÈ
Ç
Ç
Ç
ÇÈ
Ç
È
YES?
-C.S-
100.0OPSL
bd19
Ad 1
YES
NO
3,4,5, 6 1,2
18
9
9
10
11
15
16
16
17
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
mA
RELAY
Ç
Ç
Ç
INCHES
PERCENT
BLANK
Ç
CM
PERCENT INCHES CM
È
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
0=
Zero Level
LEVEL
(Pressure Sensor)
Pressure
Sensor
È
100=
È
È
È
1524
1523
1522
Ç
Ç
Ç
0.1
0.2
0.3
CM
and
every 3 seconds
.
The Display will alternate between
È
LO
È
È
È
199.9
199.8
199.7
Ç
Ç
Ç
200.1
200.2
200.3
CM
and
every 3 seconds
.
The Display will alternate between
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