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PRIOR TO INSTALLATION
Read and understand this entire manual before operating this electric heater.
1. Check for suspected damage to the heater like rips, punctures, etc.
2. Verify surface to be heated is free from all sharp edges, weld splatter, rust, oil,
etc.
3. Check that the desired placement of the heater will not cause damage to the
heater through impact shock, vibration, ambient temperature, or by neighboring
moving parts.
4. Confi rm voltage / wattage rating of heater is appropriate for power supply
device or temperature controller. The heater is designed to work at a specifi c
voltage to heat properly.
5. Confi rm heater maximum exposure temperature rating is suitable for
environment. The temperature of the internal heating element may run up to
25% higher than the external surface of the heater. Use extreme caution for
applications that require a process temperature near the maximum exposure
temperature ratings of the drum heater.
- SHDH and SSDH exposure temperature range: -60ºF to 450ºF
(-51ºC to 232ºC)
- SEPDH exposure temperature range: -60ºF to 400ºF (-51ºC to 204ºC)
T3: 292ºF (145ºC) high limit thermostat
T4A: 158ºF (70ºC) high limit thermostat
5. Do NOT connect to AC power until all installation steps are completed.
INSTALLATION OF HEATER
1. Verify drum surface is clean, free of weld splatter, and not damaged in anyway.
2. Select a suitable location on the drum, below the lowest expected content
level. For almost all applications, the heater should be mounted on the bottom
1/3 of the drum.
3. Wrap the heater around the drum. Extend the spring attached to the metal tab;
latch the spring loop onto the hook on the opposite side as shown in Figure 1.
4. Verify there are no air gaps between the heater and the drum.
Do not use metal tab as a handhold when extending the spring.
The heater MUST make continuous contact with the drum.
Do not overlap the drum heater onto itself or another heater.
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© Copyright 2006 OMEGA ENGINEERING, Inc. All rights reserved. This document may not be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC
INSTALLATION OF HEATER
MOUNTING OF TEMPERATURE SENSOR
1. Mount the temperature sensor as close as possible to the heater, on the
outside of the drum. It is best to mount the sensor vertically. Avoid bending or
coiling the capillary tube tighter than a 1/2" (13mm) radius.
NOTE: The sensing point is the entire length of the sheath (10.5" / 267mm). It is
important that as much of the bulb's surface is in contact with the drum.
Do not immerse the sensing bulb into the contents of the drum.
2. Once an appropriate location has been determined, secure the sensor to the
drum using aluminum or fi berglass adhesive tape.
ADJUSTMENT OF TEMPERATURE SET-POINT
Do not operate the heater without a temperature controlling
device (if not installed). Failure to use such a device may result
in in-process damage or heater failure.
If the operating temperature is within 50ºF (10ºC) of the
maximum exposure temperature of the heater or if the
temperature sensor/ controller or thermostat is controlling a
process remote to the heater, an intergral high-limit temperature
cut-out sensor/controller or thermostat is required to protect the
heater.
SHDH-C and SSDH-C series
Adjust dial to desired setting. Drum heaters can be adjusted 50-425ºF
(10-218ºC).
© Copyright 2006 OMEGA ENGINEERING, Inc. All rights reserved. This document may not be copied, photocopied,
reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the
prior written consent of OMEGA ENGINEERING, INC
FIGURE 1
(SEPDH series)
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