240 Series DIN Panel Meters
DIN 16257 symbol meaning for
calibration position
Specification Continued
Case
Dimensions and panel cutout conform to IEC473, DIN
43700. Models 242, 243 and 244 have cases and bezels
injection moulded in flame retardant engineering
thermoplastic, recognised by Underwriters Laboratory
materials specification. All 246 models have pressed
steel cases.
Vertical
Bezel
Bezel Window
Slim-line DIN43802 black as standard
Horizontal
Standard sheet glass, with zero adjusters where
appropriate. Non reflecting glass or polycarbonate
shatterproof windows are available.
Installation
Installations in switchboard panel or mosaic
arrangement on equipment or machine with a panel
thickness of up to 40mm in a horizontal or vertical
plane. Installation Category III
Inclined
60°
Inclination of dial surface to the
horizontal e.g 60°.
Fixing on Panel
Models 242, 243 and 244 – 2 corner fixing clamps and
tensioning thumb screws
Model 242 – available with a one piece ‘push on’ clamp.
Model 246 - 2 side fixing spring clips
Normal vertical mounting or as indicated on the scale
in accordance with DIN 16257. A deviation of 15° is
permissible
Required orientation must always be
stated when ordering if other than
vertical mounting is required.
Mounting Position
Approvals
Lloyds Shipping (LRS), Bureau Veritas (BV), EMC and LVD
Dimensions
Model
Bezel ‘A’
Panel cut-out ‘B’
Scale Length: 90°
242
48 x 48
45 x 45
42
243
72 x 72
68 x 68
65
244
96 x 96
92 x 92
94
246
144 x 144
138 x 138
145
Scale Length: 240°
72
112
150
230
Maximum overall depth ‘C’:
Ammeters and Voltmeters A.C. & D.C.*
Ammeters and Voltmeters with switch*
Dual Meters*
64
–
–
64
–
–
64
64
64
60
–
–
Elapsed Time Meter/Hours Run*
Maximum Demand Indicator*
Combined MDI & MI Indicator*
Maximum Demand Indicator with relay*
Frequency Meter 90°*
Frequency Meter 240°*
Phase Angle, Power Factor Meter 90°*
240°*
M.C. Indicator with separate transducer*
Dynamometer 360° Synchroscope*
Dynamometer 360° Power Factor Meter*
Phase Sequence Indicator*
Position Indicator*
64
–
–
–
64
§
§
§
64
–
–
–
§
64
–
–
64
§
§
–
–
64
64
–
–
64
§
§
§
64
–
–
64
§
64
–
–
64
§
§
–
–
–
64
64
64
90
–
C
60
60
–
60
125
§
64
120
107
107
64
120
120
64
120
64
120
64
A
§
60
125
–
–
A
125
60
125
–
Speed Indicator*
Temperature Indicators*
Quadra Meters*
Panel cut-out
Impulse Counters*
64
–
Wattmeter, Varmeter 90°
Wattmeter, Varmeter 240°
Model 244-21Y & 244-21Z
LED Synchroscope & Synchro Check Relay
LED 360° Synchroscope
107
107
142
80
125
125
–
–
–
B
Maximum Panel
thickness 10mm
–
80
§
*
–
Indicator Only
If separate terminal cover is used add 20 mm to dimension C
Not available
B
9
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