Tegam 940A, 945A Quick Start Manual

Digital Temperature Calibrator/ Thermometer 940A/945A

10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX [phone] ●

[e-mail]

940A-901 Rev B

D

IGITAL TEMPERATURE CALIBRATOR –

T

HERMOMETER QUICK START GUIDE

Digital Temperature Calibrator/ Thermometer 940A/945A

10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX [phone] ●

[e-mail]

940A-901 Rev B

D

IGITAL TEMPERATURE CALIBRATOR –

THERMOMETER QUICK START GUIDE

Battery Installation and Replacement

Three (3) AA 1.5 V batteries are supplied with the instrument, but not installed. Read the
following battery replacement instructions before attempting to install or remove the
batteries.

To install or replace batteries:

Required Tools: Phillips Head Screwdriver

1. Identify the battery compartment located
on the back of the instrument;

2. Remove the two (2) battery compartment
retaining screws;

3. Remove the battery compartment cover;

4. If present, carefully remove old batteries
being careful to not damage the battery
contacts;

5. Observing proper polarity, install three (3)
new, AA alkaline (IEC LR6, ANSI 15)
batteries;

6. Re-install the battery cover and two (2)
retaining screws;

7. At initial power on after battery replacement, allow approximately 30 seconds for
instrument to stabilize.

Initial Power ON

8. The instrument will initially display every segment on the LCD for 2 seconds as a
test. An internal hardware, memory and battery self-test is performed during this
time.

9. Upon completing the internal tests, the instrument will immediately display the
Source and Read mode last user settings and battery indicator.

10. Set the desired measurement parameters as follows:

a. Enter the Setup Menu by pressing , hold the key down for

approximately 1.5 seconds, and then release it;

Key designators followed by

(1.5s), e.g. (1.5s), indicate that the key should be pressed and held for 1.5 seconds, then released

to access the desired function.

Battery Installation

Digital Temperature Calibrator/ Thermometer 940A/945A

10 TEGAM WAY ● GENEVA, OHIO 44041 ● 440-466-6100 ● FAX [phone] ●

[e-mail]

940A-901 Rev B

b. The active thermocouple type is flashing on the display. Use or

to select the desired thermocouple type;

c. Momentarily (do not hold) press to save your selection and move to

the next parameter;

d. The active temperature unit is flashing on the display. Use to

select the desired temperature unit (°C, °F, or mV);

e. Momentarily press to save your selection and move to the next

parameter;

f. Read Channel offset value is flashing on the display. If the temperature

probe’s offset value is known, press to set the Channel 2 probe
offset to the probe’s offset value.

g. Momentarily press to save your selection and move to Open Lead

Detection, press to toggle on/off;

h. Momentarily press to save your selection and move to Source on/off;

See “SETUP MENU CHOICES FOR °C AND °F” and/or “SETUP MENU
CHOICES FOR mV” in the table below.

i. To save the current parameter value and exit the Setup Menu, press ;

j. To disregard changes made to the current parameter value and exit the

Setup Menu, press .

k. If parameter 2, “Temperature and Voltage Units” is set as either “°C” or

“°F”, the remaining parameter choices available are in the table below
under “Setup Choices for °C and °F”. If parameter 2 is set to “mV”, the

remaining parameter choices available are in the table below under
“Setup Choices for mV”.