Instruction Manual
Tek-Bar 3800XP
www.tek-trol.com
Technology Solutions
12
Fig 7: Low Power Transmitter and Local Analog Inputs (4-20mA)
Figure 7 shows typical connections between the low-power transmitter and local analog inputs.
Tek-Trol offers an optional 250
Ω
, high precision, axial lead resistor, P/N 5-1270-250, for
converting the 4-20mA current signal to the 1-5V voltage signal, connecting to instrument analog
inputs.
Table 2: Typical Switch Configurations
Board
Designator Description
ON
OFF
Default
HMI
JP2
Bluetooth Development Development
Auto-Run
OFF
HMI
JP3
Over the Air Bluetooth
Update
OTA Mode
Disable
ON
CPU
JP1
Bootloader Protect
Protect
Write
ON
CPU
JP2
Bluetooth Disable
Disable
Enable
OFF
CPU
SW1
Battery Disconnect
Switch
Battery Backup
Storage/Cold
Start
OFF
Terminal
J7
Host TX AC Termination
Terminated
Unterminated
OFF
Terminal
J8
Sealing Jumper
Sealed
Open
OFF
Terminal
J9
Pulse Mode
Slot
Contact
OFF
Terminal
J10
Host TX DC Termination Terminated
Unterminated
OFF
Terminal
J11
Host RX AC Termination Terminated
Unterminated
OFF
Terminal
J12 1-2
Host Duplex Setting
Software Control
4-Wire
OFF
Terminal
J12 2-3
2- Wire
ON
Terminal
J13
Host RX DC Termination Terminated
Unterminated
OFF
Terminal
J14
Host Mode
RS485
RS232
OFF
Terminal
J16
Force DCD
Forced On
From User
OFF
I/O
JP3
HART Processor
Configuration
Not Used
Normal
Operation
OFF
Signal
250 Ohm Resistor
V-
