Dwyer GFT2 - Manual

Series GFT2 Flow Totalizer
Specifications - Installation and Operating Instructions
Bulletin F-GFT2
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
SPECIFICATIONS
Input Analog Range: 0 to 5 VDC, 0 to 10 VDC, or 4 to 20 mA.
Accuracy: ±0.1% FS.
Operating Temperature: 14 to 158°F (-10 to 70°C).
Power Supply: 12 to 26 VDC.
Weight: 0.3 lbs (125 g).. The Series GFT2 Flow Totalizer is a microcontroller driven device designed to
linearize the flow meter and controller flow curve plus display the instantaneous
flow rate, total, and accumulated total. The totalizer is intended to be used with
analog flow meters and controllers with analog 0 to 5 VDC, 0 to 10 VDC, or 4 to
20 mA interface. RS-232 or RS-485 digital interface is available.
FEATURES
• Up to 47 different volumetric and mass flow engineering units (including user-
defined)
• User adjustable LCD back light and contrast level
• Compact design for unit mount, panel mount, wall mount, or field mount
applications
• Low and high flow alarms with programmable action delay.
• Free configuration and mounting utility software
• 0.51˝ (13 mm) LCD digits
Unpacking the Totalizer
The Totalizer was packed in a sturdy cardboard carton. Inspect the package for
possible external damage from shipping. Open the carton carefully and inspect for
any sign of concealed shipping damage. When unpacking make sure that all
hardware is included. The hardware should include:
(1) GFT2
(1) CD with Utility Software and operating manual
(1) Mounting Bracket with 4 screws
Safety Instructions
The GFT2 is not intended for use in life support applications or where
malfunctioning of a device may cause personal injury. When adjusting or servicing
the GFT2, take special precaution to prevent inadvertent damage to the integral
solid state circuitry.
Electrical Connection
9-PIN FEMALE
I/O PORT
47/64
[18.8]
3
[76.2]
3-13/32
[86.36]
GFT2
FLOW TOTALIZER
INPUT/OUTPUT
STATUS
Pin
1
2
3
v4
5
6
7
8
9
Function
Power Supply, Common
Power Supply, Positive
RS-232 RX, Optional RS-485 (+)
Analog Input (+), PV Input
Analog Output (+), PV set point
RS-232 Signal GND (RS-485 GND Optional)
RS-232 TX, Optional RS-485 (-)
Analog Input/Output reference
common for pins 4 and 5)
5VDC reference input (for 5 to 10 VDC only)
Note
Power Input
Power Input 12 to 26 VDC
Communication
(RS-232 is input, RS_485 input/output)
Input
Output
Communication Reference
Communication
(RS-232 is output, RS-485 input/output)
Table 1 “D” Connector