Installation and Operation Manual for
4-20mA RF Wireless Transmitter Model A753
6
Analynk Wireless, LLC
!
790 Cross Pointe Road
!
Columbus, OH 43230
Phone: (614) 755-5091 Fax: (614) 755-5093 Web:
www.analynk.com
Mode 6 (b110): RF Power Select:
Set mode
switches for mode 6 (see figure 3) then press and
release the reset switch. There are 5 RF power
settings available (1mW, 10mW, 100mW,
500mW, 1W). After power up sequence, the pre-
sent RF power setting will be displayed, see fig-
ure 5. To return to normal mode return all
switches to b000 or to change RF power setting,
press and release the program switch and the
next incremented channel will be displayed. Each
subsequent press and release of the program
switch increments the RF power, power setting
will wrap around from 4 to 0. When the desired
power level is displayed, press and hold the pro-
gram switch for five seconds, the power LED will
blink twice to indicate value has been stored. Re-
turn all switches to b000, programming is com-
plete.
(1W) 4
(500mW) 3
(1mW) 0
(100mW) 2
(10mW) 1
R F POWER
LED S IN R F
POWER MODE
23
1
ON
RESET
PR OGRAM
4.3 Zero and Span Calibration
(refer to label on side of unit for actual input voltage/
current, substitute value for 4-20mA below as necessary)
4.3.1
Lift Access Door to expose mode, reset, and programming switches
(see figure
3).
4.3.2
Connect calibration source to 4-20ma input (see figure 1, and table 1)
4.3.3
Set mode switch to Mode 2 (“Span Adjust”) – see figure 3 for proper setting.
4.3.4
Apply power to unit or if unit is already powered – press and release the “reset
switch” – after unit has completed power up sequence, apply “Zero” signal of
4ma.
4.3.5
Press and release the “program switch” – the Power LED will blink twice to indi-
cate value is stored.
4.3.6
Apply “Span” value of 20ma.
4.3.7
Press and release the “program switch” – the Power LED will blink twice to indi-
cat value is stored.
4.3.8
Span calibration is completed. Return mode switch to Mode 0.
4.3.9
Set mode switch to Mode 1 (“Zero Adjust”) -- see figure 3 for proper setting.
4.3.10
Press and release the “reset switch” – after unit has completed power up se
quence, apply “Zero” signal of 4ma.
4.3.11
Press and release the “program switch” – the Power LED will blink twice to indi-
cate value is stored.
4.3.12
Zero/Span calibration is completed. Return mode switch to Mode 0.
4.3.13
Check Zero/Span calibration by observing 4-20ma output of A750 Receiver at
different input values of connected calibrator source (e.g. 4,8,12,16,and 20ma).
4.3.14
If unit is properly calibrated – disconnect calibration source; otherwise, repeat
calibration process – starting at step 4.3.2.