255-250-DNDN-UL YOKOGAWA, 255-250-DNDN-UL Datasheet - Page 7

• 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

Key to 200-Prefix Catalog Numbers
Digits 1, 2, and 3 Style
250 - New Big Look (Taut Band), (I/V*-P&J)
251 - Horizon Line (Taut Band), (I/V*-P&J)
254 - New Big Look (P&J)
255 - Horizon Line (P&J)
260 - Stylist Surface Mount
261 - Stylist Window Mount
264 - Stylist (P&J) Surface Mount
265 - Stylist (P&J) Window Mount
Table of Contents
Digit 4 - Size
1 - 1
2 - 2
3 - 3
4 - 4
*I/V = Iron Vane Mechanism
Parameters
and Specifications
DC Voltmeters
DC Ammeters
DC Microammeters
DC Milliammeters
AC Voltmeters
AC Ammeters
AC Microammeters
AC Milliammeters
AC Frequency Meters
AC Motor Load Indicators
Expanded Scale Voltmeters
Elapsed Time Meters
Terminal Resistance Values
Cross Reference to Other Manufacturers
Electrical and Physical Options
Parts & Accessories
Dimensional Drawings
1
1
1
1
⁄
⁄
⁄
⁄
2
2
2
2
(Taut Band), (I/V*-P&J)
(Taut Band), (I/V*-P&J)
"
"
"
"
250
Digits 5 and 6
Elec. and Mechanical Variables
00 - DC Amps Zero-Left
01 - DC Amps Zero-Center
04 - DC Volts/Ext. Res. Zero-Left
05 - DC Volts/Ext. Res. Zero-Center
10 - AC Amps Rectified
20 - DC Volts Zero-Left
21 - DC Volts Zero-Center
24 - DC Millivolts Zero-Left
25 - DC Millivolts Zero-Center
30 - AC Volts Rectified
37 - AC Expanded Scale Voltmeter
38 - DC Expanded Scale Voltmeter
40 - AC Amps (I/V)* 60 Hz
44 - AC Volts (I//V)* 60 Hz
45 - AC Volts 400 Hz (I/V)*
50 - Frequency
Case
Style
2
40
20-21
31-32
33-34
Look
New
Big
2-3
3-5
3-4
5-6
6-7
3,5
13
30
12
33
3
6
6
LS
Horizon
10-11
11-12
20-21
31-32
35-36
8, 11
8-10
Line
8-9
11
11
13
12
33
30
8
9
Digits 7 and 8 - Elec. Rating
Example:
LS = 5 Amps
MT = 10 Amps
NG = 20 Amps
LS
Stylist
17, 18
14, 17
15-16
17-19
22-23
31-32
14
15
15
17
19
33
30
37
7,8,9,10
Digits 9 and 10 - Scale
Example:
LS = 0-5 Amps
MT= 0-10 Amps
NG = 0-20 Amps
Elapsed
24-25
39-40
Time
Digit 11 - Factory Style
For factory use.
XXX or XXXXXXXXXX
Edgewise
26-27
26-27
31-32
185
26
27
26
27
30
38
Digits 12, 13, 14, 15, 16,
17-18 Special Units
When used, these denote
unique models. Refer to
factory for details.
Edgewise
28-29
31-32
280
28
29
29
29
29
29
29
29
30
39
1