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1. Introduction
The PTC 400 is designed to be a versatile, easy to use temperature calibrator with a simple
user interface. The following instructions will allow the user to begin simple calibration tasks by
learning the basic operation of the keys and their functions.
2. Quick Start Instructions
A. Key Functions
Key
Function
Input/Output
Toggles the function selected from measurement mode to source mode.
TC
Pressing the “TC” or “Thermocouple” key toggles through all available TC
types as well as direct mV output.
RTD
Pressing the RTD key toggles through all available RTD types as well as
direct ohms output.
°F/°C
Toggles between °F and °C
0-9 keys
These keys allow a user to enter an output value.
Example: to output 20 mV select mV output and Press the “2” key then
the “0” key followed by the “ENTER” key.
Arrow
These keys allow small changes to be made to an output value. Press
either the up or the down key to set the value as desired.
CE
The clear entry key allows the user to clear a value before the enter key is
pressed.
Shift
This key has a blue text color and acts as a second function key to all
keys that have an associated second function.
B. Setpoints
1. Storing Setpoints
The setpoint mode allows up to 9 setpoints to be set in non-volitile memory for each range.
The procedure is as follows:
a. Set the output to the desired value.
b. Press shift followed by the “SET” key
c. Choose the desired setpoint storage location by pressing a key (1-9).
d. Enter a new value and repeat steps 1 through 3 as needed, up to 9 setpoints for each
range can be stored.
2. Recalling Setpoints
a. To recall a setpoint press shift followed by the”SPT” key.
b. You will be prompted to enter the number of the desired setpoint location set previously.
c. Press the desired location number and the unit will go to that output.
