255-250-DNDN-UL YOKOGAWA, 255-250-DNDN-UL Datasheet - Page 43

• Manufacturer Part Number: 255-250-DNDN-UL
• Description: FREQUENCY PANEL METER MODEL 255-2 55-65HZ 240VAC UL
• Manufacturer: YOKOGAWA

Specifications of 255-250-DNDN-UL

• Meter Range: 55Hz To 65Hz
• Meter Size/dimensions: 2.5" X 2.5"
• Scale Length: 2.06"
• Meter Function: Frequency

Fig. 9. Stylist Series
Fig. 10. Bezel Mounts of Surface Mount Stylist Meters
1
2
3
4
2
3
4
1
1
1
1
1
1
1
Surface Mount
⁄
⁄
⁄
⁄
⁄
⁄
⁄
2
2
2
2
2
2
2
in.
in.
in.
in.
in.
in.
in.
Types 260, 261, 264 & 265
1.75
2.27
2.87
3.96
2.29
2.90
4.60
A
A
2.24
2.99
3.70
5.10
3.01
3.73
5.18
B
B
1.33
1.44
1.74
1.35
1.45
1.79
.99
C
C
1.07
1.33
1.33
1.06
1.33
1.33
.76
D
D
2
3
4
2
3
4
1
1
1
1
1
1
⁄
⁄
⁄
⁄
⁄
⁄
2
2
2
2
2
2
1.13
1.44
1.74
1.15
1.45
1.79
.83
E
E
2.30
2.94
4.05
in.
in.
in.
F
SURFACE MOUNT METERS
WINDOW MOUNT METERS
.56
.56
.56
.48
.56
.56
.56
1.13
F
F
.13
.14
.12
.64
.72
G
A
Window Mount
.295 1.30 1.260 .145
.34
.40
.41
.51
.32
.37
1.87
1.89
2.05
1.07
1.42
G
G
.79
H
B
1.30
1.30
1.30
1.26
1.30 1.585 .145
1.26 2.335 .145
H
H
1.74
2.30 3.718 2.156
2.99 5.126 2.843
.57
.59
.75
C
J
1.24
1.55
2.20
.87
J
J
1.78
2.14
2.84
3.00 1.594
D
K
N/A
N/A
N/A
N/A
K
K
3.15
3.85
5.24
E
L
4-40
4-40
4-40
4-40
.06
.07
.09
L
L
M
M
.50
.50
.50
.25
.50
.50
.50
2.900 1.270 .633
3.610 1.595 .804
5.020 2.345 .856
1.55
2.22
2.82
2.82
R
X
1.12 1.12
2.00 1.54
.66
.94
S
Y
Surface Mount
Panel Cutout
.66
.94
T
Z
1.31
1.88
2.25
3.56
V
.125
.125
.125
.125
W
Window Mount Meters
rear view (combined)
Surface and
Window Mount
Panel Cutout
37