Practical Instrument Electronics 820 - Manual (Page 19)

Page 17
Read Thermocouple Sensors
Choose this function to measure temperatures with a
thermocouple probe or sensor.
Move the power switch w to READ then Double Click the
EZ-DIAL knob to get into the Double Click Menu. Turn the knob
to scroll through the settings and press the knob to make your
selection. Select T/C for the FUNCTION, °F or °C for the UNITS,
T/C Type (J, K, T, E, R, S, B, N, G, C, D, L (J-DIN), U (T-DIN) or
P (Platinel II) and COLD JUNC ON or OFF (ON is the default).
Connect the PIECAL 820 to the inputs of the device being
calibrated using the proper type of thermocouple wire via the
miniature thermocouple socket. If no sensor is connected, a wire
is broken or the sensor is burned out, OPEN TC will appear on
the display. Signals above the maximum scale are limited by
protection circuitry with “OVERRANGE” on the display and the
red OVERLOAD LED lit.
The PIECAL 820 measures the input signal and constantly
updates the display with the current reading. Move the
EZ-CHECK switch
q to MAX to see the highest reading and to
MIN to see the lowest reading. Press and hold the knob e to
clear the MAX and MIN readings.
Process Calibrator
mA ∙ V ∙ TC ∙ Ω ∙ RTD ∙ Hz
SOURCE
HI
SET
LO
OFF
MAX
READ
MIN
READ
OVERLOAD Hz SYNC
Double Click
Menu
Push & Turn
for Fast Dialing
Push & Hold
to
Store/Step
READ
TYPE K °F
1820.1
Thermocouple Wire