Watlow EHG SL 10 User Manual
The Series EHG SL 10 is a powerful instrument that in-
tegrates a temperature process controller, high-low tem-
perature alert, and power switching with a safety high
limit that meets UL
®
1998 and CE 60730 requirements.
The optional display and communications modules can
be easily upgraded in the field to provide a digital dis-
play, adjustable control parameters, RS485 MODBUS
communications and other interface features. The com-
pact design, inherent reliability and integrated safety
limit functions make this control a tremendous value.
The control is designed for easy integration with Wat-
low heaters providing additional value to simplify the
engineering and component count on new equipment.
CE compliance and UL recognition will reduce time and
costs necessary for global agency testing and validation
for OEMs.
Features and Specifications
Standard Base Module
· 2, Type K Thermocouple Inputs: Process Temperature Controller
and Safety Limit.
· Isolated Universal Power Supply: 100 to 240V
Å
(ac) 50/60Hz
· Ambient operating temperature range 0 to 70°C
· Process Temperature Output: 10 amp “No Arc” relay
· Safety Limit: 10 amp relay
· High-Low Temperature Alert: 2 amp, 30V
ı
(ac/dc), Form A relay
· On-Off and PID temperature control algorithm. Upgraded via com-
munications to PID algorithm (minimum cycle time 5 seconds).
0600-0050-0000 Rev. C
May 2006
Integrated Temperature Control
· Standard Molex Connectors
· Dimensions
configuration
width
depth
height
basic unit
88.8 mm
(3.496 in)
40.2 mm
(1.582 in)
55.8 mm
(2.196 in)
with mounting bracket
88.8 mm
(3.496 in)
48.4 mm
(1.907 in)
55.8 mm
(2.196 in)
with communicatons-dis-
play module & mounting
bracket
88.8 mm
(3.496 in)
63.6 mm
(2.503)
55.8 mm
(2.196 in)
· Agencies: UL
®
/C-UL Listed, CE, Semi S2
Optional Communications Module
· Field adjustable set point
· Access to PID parameters
· Modbus RTU Communications
· RS 485
· 3-character, 7-segment LED display
· User Interface Software
The Series EHG SL 10 User’s Manual is copyrighted
by Watlow Winona, Inc., © May 2006, with all rights re-
served.
Patent Pending
Watlow Winona
1241 Bundy Boulevard
Winona, MN 55987
Phone: (507) 454-5300; Fax: (507) 452-4507
www.watlow.com
Series EHG SL 10
Integrated Temperature Controller
User’s Manual