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ATEX Type Certification marking for type L1X-EX, T1X-EX, T2X-EX
Type of protection "d" explosion-proof enclosure
Approval:
II 2 G D
Ex d IIC T6
Ex tD A21 IP65 T80°C
-40°C < Tamb < +75°C
Certificate no.:
ISSEP08ATE024X
Standards applied:
IEC 60079-0, IEC60079-1, IEC 61241-0 and
IEC 61241-1
L1X, T1X, T2X Models are UL (File No. E58658, Guide No. XBDV) & CSA (File No.
LR34556, Guide 400-E, Class 4868) are Listed as Temperature Indicating and Regulating
Equipment for use in Hazardous Locations, as follows;
Class I, Groups B (UL Only), C & D, Class II, Groups E, F & G, Class III.
ML1H, MT1H, L2H, T2H Models are UL (File No. E56247) & CSA (File No. LR34555,
Guide 400-E-O, Class 4813) are Listed as Temperature Indicating and Regulating
Equipment for use in Ordinary Locations.
Operating life time
The switches are designed for an operating life time of at least 1 million cycles when used
under normal design criteria.
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Operating Instructions Mechanical Temperature Switches
ML1H,MT1H,L2H,T2H,L1X/L1X-EX,T1X/T1X-EX,T2X/T2X-EX
1
Intended Applications .................................................................................................... 2
2
Safety Instructions ......................................................................................................... 2
3
Standards ........................................................................................................................ 3
4
Warranty/Guaranty ......................................................................................................... 3
5
Transport/Storage .......................................................................................................... 3
6
Installation/Commissioning........................................................................................... 4
7
Maintenance/Cleaning.................................................................................................... 8
8
Technical Data ................................................................................................................ 8
Barksdale, Inc.
3211 Fruitland, Ave.
Los Angeles, CA 90058
Phone:
800 835-1060
Fax:
323 589-3463
email:
sales@barksdale.com
Internet: www.barksdale.com
Bulletin No. 272182-E
Date: 07-20-2009
Specifications are subject to changes
without notice!
1
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Related Manuals for Barksdale ML1H
Summary of Contents for Barksdale ML1H
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Page 1: Table Of Contents
Class I, Groups B (UL Only), C & D, Class II, Groups E, F & G, Class III. ML1H, MT1H, L2H, T2H Models are UL (File No. E56247) & CSA (File No. LR34555, Guide 400-E-O, Class 4813) are Listed as Temperature Indicating and Regulating Equipment for use in Ordinary Locations. -
Page 2: Intended Applications
Intended Applications Local mount temperature switches The temperature switches are specifically applied for monitoring and controlling of operations using Measuring Ranges maximum or minimum temperatures. A micro switch triggers an electrical signal when minimum or maximum temperatures are reached. Order code Max. -
Page 3: Standards
Measuring Ranges IMPORTANT Order code Max. temperature at sensor Adjustment range Refers to important information essential to the user. [°F] [°F] Disposal -100… +200 -49… +151 The equipment must be disposed of correctly in accordance with the local regulations for -100…... -
Page 4: Installation/Commissioning
Installation/Commissioning Electrical Ratings Micro Special Volt AC Ind. Res. Volt DC Ind. Res. Notes DANGER switch Characteristics 50/60 Hz Load Load Load Load Only install or uninstall the switch when de-energized (electrically and hydraulically/pneumatically). Micro switch with Small hysteresis; Process connection and electrical connection must be carried out by trained or instructed silver contacts 0.50 high AC / low DC... - Page 5 Adjustment knob Contact Protection High circuit S2 The micro switches used are normally suitable for both direct and alternating current operation. Adjustment knob Inductive, capacitive and lamp loads may, however, considerably reduce the life expectancy of a micro Low circuit S1 switch and, under extreme circumstances, even damage the contacts.
- Page 6 Increase the temperature (about 2°C/minute) until the control unit is deactivated. Fig. 10: Temperature switch type ML1H-… Watch the point at which the control unit is activated again while the temperature is falling. This is the set switch point.
- Page 7 Adjustment knob under cover Adjustment knob under cover Ground screw 46 (1.81) 136 (5.35) (internal) IMPORTANT 28.6 (1.13) 36.5 (1.44) ½“ NPT conduit Adjustment of several set points is performed for each set point as specified above. Mounting holes Mounting holes connection ø7.1 x 2 (2.008)
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Page 8: Maintenance/Cleaning
Maintenance/Cleaning Adjustment knob Maintenance High circuit S2 Adjustment knob The pressure switch is maintenance free. Checking the set points lies within the discretion of the Low circuit S1 user. The usual preventive maintenance work in accordance with the PED and ATEX guidelines ¾“...