Pyromation Dual J-T-E-K - Manual (Page 25)

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When calibrating at freezing (0°C or 32°F) it is rec-
ommended to use crushed ice made of distilled
water in a dewar flask. Add crushed ice to top of
flask. Top off flask with distilled water. Continue to
add crushed ice to maintain tightly packed crushed
ice/water in flask.
CALIBRATION PROCEDURES
Calibration Procedure (One Probe Detected)
This calibration function provides for both an offset
and slope field calibration of either T1 or T2. If only
one probe is detected, the procedure applies to that
probe, and the main display will indicate T1 or T2
as applicable. For proper calibration the following
conditions must be observed:
• The slope point must be a higher temperature than
the offset point.
• The difference must be at least 20°C.
• Use two points based on the expected high and
low temperatures. Temperatures measured out-
side of these limits may no longer meet accuracy
specifications.
Proceed as follows to calibrate the probes.
1. Place the probe at the lower known reference
temperature.
2. Offset Calibration: Momentarily press the CAL
key to enter the calibration mode, the CAL an-
nunciator will flash. The temperature is displayed
on the main display and Lo is displayed on the
lower left display. “Lo” signifies that this is the
offset point.