ustomers have counted on Simpson Electric Company to provide quality
panel meters for over 70 years. From the analog meter used in Charles
Lindbergh’s historic solo trans-Atlantic flight in 1927 to the digital controllers used
to raise and lower stages at the 2004 MTV Video Music Awards (VMAs) show or
the MiniMax meters which monitor the lighting at CNN, Simpson continues to pro-
vide solutions for a wide variety of electrical, electronic and environmental testing
and measuring applications.
C
uality makes Simpson the logical choice for panel instruments. Our warran-
ty is an ongoing quality assurance program against defects in materials and work-
manship. Our goal is 100 percent customer satisfaction.
Q
odularity gives Simpson customers access to full-featured performance,
while only paying for functions needed. Custom dials and ranges are available on
analog products by special order for specific requirements. Orders are easily
accommodated by contacting local Simpson Authorized Modification Centers or
Simpson Distributors. For the names of Modification Centers or Distributors, call
715-588-3947 or visit our website at www.simpsonelectric.com.
M
Simpson Electric Company is owned by the Lac du Flambeau
Band of Lake Superior Chippewa Indians and is a Certified
Minority (Native American) Business Enterprise by the
Wisconsin Supplier Development Council. The Chippewa Band
dedicates itself to expanding Simpson’s success in the Panel
Meter Industry and to furthering economic growth in the Native
American community.
Digital Panel Meters
Digital Products Feature Reference Guide . .C9
Mini M135 & M145 . . . . . . . . . . . . . . . . .A1-A2
MiniMax M235 & M245 . . . . . . . . . . . . . .A3-A4
MiniMax M240 Temperature Meter . . . . .A5-A6
Falcon F35 & F45 . . . . . . . . . . . . . . . . . .A7-A9
2800 Series . . . . . . . . . . . . . . . . . . . . . . . . .A10
Hawk 3 H335 & H345 . . . . . . . . . . . . .A11-A12
Hawk 3 H340 Temperature Meter . . . .A13-A14
GIMA 3-Phase Power Meter . . . . . . . .A15-A17
S660 Preset Totalizer/Counter . . . . . . . . . .A18
S661 Preset Rate Counter . . . . . . . . . . . . .A19
S662 Batch/Dual Counter . . . . . . . . . . . . . .A20
S663 Rate/Totalizer Counter . . . . . . . . . . .A21
S664 Frequency Counter . . . . . . . . . . . . . .A22
Counter Dimensions . . . . . . . . . . . . . . . . . .A23
SE Quadrature/Dual Shaft Encoder . . . . . .A24
Accessories
Counter Accessories . . . . . . . . . . . . . . . . . . .C1
Chariot
Measuring Wheels
Flexible Couplings
Thermocouples/RTD . . . . . . . . . . . . . . . . . . .C2
Quick Disconnect Assemblies
Metal Transition Assemblies
Compression Fitting
Shunts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C3
Switchboard
External Portable
Current Transformers . . . . . . . . . . . . . . .C4-C6
Donut Current Transformers
Terminal Type Transformers
Model 186 Current Transformer
Model 183 Multipliers . . . . . . . . . . . . . . . . . .C7
Current Transducers . . . . . . . . . . . . . . . . . . .C7
1/8 DIN NEMA 4X Removable Cover . . . . .C8
Bezel Kits . . . . . . . . . . . . . . . . . . . . . . . . . . .C8
DIN Rail Mounting Kit . . . . . . . . . . . . . . . . . .C1
Analog Panel Meters
Analog Product Reference Chart . . . . . . . . .B1
Wide-Vue Style . . . . . . . . . . . . . . . . . . . .B2-B5
Century Style . . . . . . . . . . . . . . . . . . . . . .B6-B9
Tru-Vue Style . . . . . . . . . . . . . . . . . . .B10-B12
Round Style . . . . . . . . . . . . . . . . . . . . .B13-B15
Rectangular Style . . . . . . . . . . . . . . . .B16-B19
Designer Style . . . . . . . . . . . . . . . . . . .B20-B21
Rugged Seal Style . . . . . . . . . . . . . . . .B22-B23
Elapsed Time Meters . . . . . . . . . . . . .B24-B26
250º Long Scale Style . . . . . . . . . . . . .B27-B28
Rugged Seal Controllers . . . . . . . . . . .B29-B30
Which Panel Meter is Best -
Analog or Digital?
Panel meter users in today’s marketplace should become
familiar with the unique advantages common to digital and
analog meter design when making their selections. Many
already recognize the inherent superiority of the digital meter
under certain applications and the value of the analog
meter in others. While the enormous popularity and
decreasing costs of digital panel meters have made them
the choice of many consumers, there are other factors to
consider when choosing a panel meter.
When precise measurements and resolution are the fore-
most consideration, a Simpson Digital Panel Meter would
a digital controller, personal computer, host computer or
printer -- and unique to digital panel meters. 12DCV and
24DCV excitation outputs are available to power ancillary
devices such as strain gauge bridges and transmitters --
eliminating the need for an external power supply.
Analog and relay outputs are also useful options in many
monitoring and control applications.
Analog panel meters are preferable to digital where read-
ings tend to fluctuate or oscillate and where extended
monitoring is required to indicate trends or rates of
change. Digital sampling times may cause reading errors
Digital Panel Meter
Analog Panel Meter
be the better choice. Digital panel meters offer accura-
cies ranging from 1% to 0.02%, while the analog counter-
part is typically rated at 2%. Digital displays are easily
read from 20 feet, under poor lighting and with no parallax
problems. (Parallax is an optical illusion caused by view-
ing an object from an angle rather than directly. Since
there is a space between the pointer and the face of the
meter scale, an analog pointer will seem to be at different
positions on its scale, depending on the angle from which
it is read.) Digital panel meters, such as the Simpson
Hawk 3, offer scaling (the capability of the meter to asso-
ciate, in engineering units, any desired value to the elec-
trical input range). This provides flexibility and versatility
for a variety of applications. An additional option is the
RS485 serial interface -- suitable for connection between
and the highs and lows of the swing cannot be identified.
Analog panel meters also provide rugged durability and
dependability to withstand changing outdoor environ-
ments. They are generally easier to read in bright sun-
light or well-lit rooms. And, unlike the digital meter, the
analog meter requires no external power source.
Simpson Analog Panel Meters come in a variety of
designs made possible through customized dials, mount-
ing options (window, surface and bezel) and a large
selection of case styles and sizes.
Simpson panel meter accessories include stock thermo-
couples, current transformers, external portable and
switchboard shunts and external multipliers, transducers,
and transmitters.
Write us at Simpson Electric Company,
853 Dundee Avenue, Elgin IL, 60120
Call us at 847.697.2260 or find us on the
web @ www.simpsonelectric.com
Specifications
DISPLAY
Type
Height
Decimal point
Overrange indication
Backlighting
7-segment LCD
0.5" (12.7mm)
3 or 4 position user-programmable
Most significant = "1" other digits blank
Optional negative image, red backlighting at
5, 10, 12, 24 or 48 DCV
Auto with "-" indication, "+" indication implied
±5V, +5V and +9V
Low Power Indication included with 9V units
2mA max
50mA typical. For 24 and 48DCV,
10mA typical
3 1/2 digit:
±(0.1% of reading + 1 count)
4 1/2 digit:
±(0.04% of reading + 1 count)
Polarity
POWER REQUIREMENTS
DC Power
Power supply current
Backlight supply current
ACCURACY @ 25°C
ENVIRONMENTAL
Operating Temperature
Storage Temperature
Relative Humidity
Warmup time
Temperature Coefficient
0 to 55°C
-10 to 60°C
0 to 85% non-condensing @ 40°C
Less than 20 minutes
(All inputs)
± (0.02% of input ± 0.2 digit)/°C
NOISE REJECTION
NMRR
CMRR
60dB, 50/60Hz
(with 1K unbalanced @ 60 Hz) 90dB min
• 3/64 DIN Indicator
• Minimum depth - requires less than 0.7”
(17mm) behind the panel
• Snaps right into panel - no mounting
hardware required
A TO D CONVERSION
Technique
Rate
MECHANICAL
Bezel
Depth
Panel cutout
Weight
Case Material
Integrating
3 samples/second-typical
0.94" x 2.83"
0.43"
0.89" x 2.71" (22.6mm x 68.8mm)
1.0oz (28.3g)
94-VO, UL-rated ABS
Input Specifications
DC Voltage
Range Resolution
200mV
2V
20V
200V
100µV
1mV
10mV
100mV
Input
Max Input
Impedance (Unfused)
>100m
50V
10m
250V
10m
250V
10m
250V
DC Current
Range Resolution
200µA
2mA
20mA
200mA
100µA
1µA
10µA
100µA
Voltage Max Input
Drop
(Unfused)
200mV
10mA
200mV
40mA
200mV 100mA
200mV 400mA
Mounting Requirements
The Mini indicators require a panel cutout of 2.71" (68.8mm) wide by
0.89" (22.6mm) high, and a panel area of 0.94" (24mm) high by 2.83"
(72mm) wide. The depth behind the panel, including terminals, is 0.7"
(17.8mm). The front bezel protrudes 0.16" (4mm) from the front of the
mounting surface. The unit will snap-mount into panels from 0.050" to
0.125" thick. A 12-pin connector with 6" wire leads is included with each
unit for quick installation.
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Analog electronics
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