Omega M0102, M0902 User Manual

MODEL J DIALTEMP™

INSTRUCTION

SHEET

M0102/0902

®

OMEGA

0

250

200

150

100

50

INTRODUCTION

The Model J DialtempTMis a non electronic thermometer that features a 360
degree swivel neck with a 90 degree tilt range of it’s large easy-to-read 5
inch dial face. The heliarc stainless steel welded construction provides a
moisture-proof bond, while preventing the possibility of rust and corrosion.
The temperature sensing device consists of sensitive bi-metal coils. They are
wound to pre-determined standards and are individually trimmed and
tested for full-scale accuracy, contributing minimum pointer vibration and
maximum heat transfer. One external reset screw enables fast and simple
recalibration. This superior DialTemp instrumentation design combines
high precision with durability and dependability, making the Model J
Thermometer ideal for a wide variety of applications.

UNPACKING INSTRUCTIONS

Remove the packing list and verify that all equipment has been received. If
there are any questions about the shipment, please call the OMEGA
Customer Service Department at 1-800-622-2378 or [phone].

Upon receipt of shipment, inspect the container and equipment for signs of
damage. Take particular note of any evidence of rough handling in transit.
Immediately report any damage to the shipping agent.

The carrier will not honor any claims unless all shipping
material is saved for their examination. After examining and
removing contents, save packing material in event reshipment
is necessary.

HEAD ADJUSTMENT INSTRUCTIONS

Adjust the angle of the head before installing the Model J Thermometer.
Refer to Figure 1 to locate the adjustment screws.

Install the thermometer so that the maximum ambient head
temperature remains below 300°F (149°C) at all times.

1. Adjust the rotational position of the head by loosening the two bracket
bolts and rotating the bracket until the head is in the desired position.

NOTE

NOTE

NOTE: Observe that the head and stem must be in the full upright
position in order to rotate the head. Tighten the bracket bolts securely.

2. Adjust the tilt angle of the head by loosening the two hinge screws and
tilting the head to the desired position. Tighten the hinge screws securely.

TO RESET THE DIAL

1. Determine the room temperature by using a reference thermometer of
known accuracy.

2. Locate the reset screw on the back of the head (see Figure 1).

3. The numbered dial face inside the head will rotate as the screw is turned.
Use a slotted screwdriver or a

1

⁄4" hex wrench to adjust the setting.

4. Align the pointer with the correct temperature on the numbered dial face.

The thermometer is now ready for installation.

INSTALLATION INSTRUCTIONS

The Model J DialTemp Thermometer is supplied with a 1⁄2" -14 NPT pipe
thread for mounting purposes. Carefully screw the thermometer into the
fitting by hand until slightly tight. Complete tightening by using a

5

⁄8 " wrench

on the wrench flats. When using a thermowell, tighten only FINGER TIGHT.

NEVER TIGHTEN BY TWISTING THE HEAD! AVOID
HANDLING THE THERMOMETER BY THE STEM OR BENDING
THE STEM.

To obtain a positive seal, coat the threads with pipe joint compound or wrap
with Teflon tape.

When inserting the DialTemp into a semi-solid material, hold the stem
firmly and insert slowly and carefully to avoid bending. When inserting the
thermometer into a material, always hold it by the stem, not by the head.

OPERATING INSTRUCTIONS

For correct temperature measurement, the stem of the DialTemp must be
immersed at least 2" in fluids and 4" in gases.

RANGES AND DIVISIONS:

Fahrenheit Celsius

-40-160°F 2 0-100°C 1
*0-200°F 2 -10-110°C 1
*0-250°F 2 0-150°C 1
50-300°F 2 0-300°C 5

*50-500°F 5
150-750°F 5
100-800°F 5

200-1000°F 10

* Off-the-shelf ranges/divisions for the 2

1

⁄2" and 6" stem lengths. Not

recommended for continuous use above 800°F.

SPECIFICATIONS

ACCURACY: ±1% of full scale
RESPONSE TIME: Readings are stabilized within 40 seconds

CAUTION