Det-Tronics UD10 FlexVu Explosion-Proof Universal Display Unit - Manual (Page 3)

INSTRUCTIONS
FlexVu ® Explosion-Proof
Universal Display Unit
Model UD10
Important
Be sure to read and understand the entire
instruction manual before installing or operating
the gas detection system. This product can be
used with a variety of Det-Tronics gas detectors to
provide early warning of the presence of a toxic or
explosive gas mixture. Proper device installation,
operation, and maintenance is required to ensure
safe and effective operation. If this equipment
is used in a manner not specified in this manual,
safety protection may be impaired.
ApplicAtion
The FlexVu ® Model UD10 is recommended for
applications that require a gas detector with digital
readout of detected gas levels as well as analog 4-20
mA output with HART, relay contacts, and Modbus
RS485 ( foundation ™ Fieldbus option available). The
UD10 Universal Display Unit is designed for use with
Det-Tronics gas detectors listed in Table 1.
The display unit is designed and approved as a ‘stand
alone’ device and performs all the functions of a gas
controller.
When furnished with the CGS interface board, the
device can be used only with a CGS sensor for detection
of combustible gas. The UD10/CGS combination is
certified as a “Gas Detector”.
Gas concentration and unit of measurement are
displayed on a digital display. The display unit provides
a linear isolated/non-isolated 4-20 mA DC output signal
(with HART) that corresponds to the detected gas
concentration.
All electronics are enclosed in an explosion-proof
aluminum or stainless steel housing. The display unit is
used with a single detector that may be either coupled
directly to the UD10, or remotely located using a sensor
termination box.
The UD10 features non-intrusive calibration. A magnet
is used to perform calibration as well as to navigate the
UD10’s internal menu.
Description
The UD10 Universal Display can be used with various
4-20 mA gas detection devices, with or without HART.
The unit provides display, output and control capabilities
for the gas detector.
The UD10 utilizes the following I/O:
Signal Inputs: 4-20 mA loop from the sensing device
User Inputs: Magnetic switches (4) on the display
panel
HART communication (handheld field
communicator or AMS)
foundation ™ Fieldbus (if selected)
Signal Outputs: 4-20 mA output loop with HART
Modbus RS485 or foundation ™ Fieldbus
Three alarm relays and one fault relay
Visible Outputs: Backlit LCD display
HART slave interface via HART
Communicator
4.2 © Detector Electronics Corporation 2012 Rev: 9/12 95-8661