Altek a 830-KP - Manual (Page 17)

31
+ I N - REF
Typical
2-Wire
Transmitter
OPERATING INSTRUCTIONS
CALIBRATE 2-WIRE TRANSMITTERS
(T/C / mA Shown)
CALIBRATE 4-WIRE TRANSMITTERS
+ I N - REF
Typical
4-Wire
Transmitter
Loop
Power Supply
24 VDC
30
OPERATING INSTRUCTIONS
CALIBRATE TRANSMITTERS
ANY SOURCE FUNCTION AND
READ mA, READ %, READ DP%
Choose this function to supply the input signal to the transmitter
and displaying the 4-20 mA output of the transmitter (used with 4-
Wire Transmitters).
ANY SOURCE FUNCTION AND
P-XMTR mA, P-XMTR %, P-XMTR DP%
Choose this function to simultaneously supply power to a 2-Wire
transmitter while supply the input signal to the transmitter and
display the 4-20 mA output of the transmitter.
1) Disconnect both the input and output wires from the 2-Wire
Transmitter to be calibrated
2) Choose a function of the 830-KP that matches the input of the
transmitter (T/C, RTD, Freq, etc.). Select the proper type,
range and temperature scale if applicable.
3) Press the DISPLAY/SOURCE/READ push-button until READ
or P-XMTR appears in the lower half of the display
4) Press READ/POWER TRANSMITTER to switch between
reading milliamps and supply voltage to power the transmitter
5) Connect the output of the 830-KP to the signal input of the trans-
mitter (using the 1, 2 & 4 connectors or the T/C connector on the
830-KP)
6) Connect the red POWER lead of the 830-KP (Connector 5) to
the plus (+) output of the tranmitter and the black POWER lead
(Connector 6) to the minus (-)
To change the output value, press the UP or DOWN key for each
digit. To ramp the output press and hold any UP or DOWN
pushbutton. This function operates in all three output positions (HI,
SET & LO). Press the HI & LO Quik-Cheks to recall stored outputs.
The TechChek 830-KP supplies a nominal 24 Volts DC at 24 mA
to the 2-Wire transmitter. The current output of the transmitter will
be accurately displayed by the 830-KP. Calibrate the Transmitter
in the usual manner and disconnect the 830-KP.